JP2014219186A - Chiller device - Google Patents

Abstract

The present invention relates to a chiller device that has a refrigerant circuit and supplies a heat medium heat-exchanged with a refrigerant to a user side device, and improves transportability and assemblability. A chiller device (10) includes a refrigerant circuit, a blower fan (3) for introducing air to an air heat exchanger (2) of the refrigerant circuit, and a support frame (50) on which these components are installed. And. The support frame (50) is provided with a plurality of air cooling units (1LF, 1RF, 1LR, 1RR) each having an air heat exchanger (2) and a blower fan (3) in the refrigerant circuit at the top. An equipment unit (5) having a water-cooled heat exchanger is installed, and is configured to be separable into a plurality of pedestals (51). In addition, two water heat exchangers that are the same type of components of the device unit (5) are provided on the same gantry (51). [Selection] Figure 1

Description

    The present invention relates to a chiller device including a refrigerant circuit that performs a vapor compression refrigeration cycle, and a water circuit that supplies water that has been heat-exchanged with the refrigerant in the refrigerant circuit to a use-side device. This is related to improvement measures.

    Conventionally, it is installed outdoors in buildings, factories, etc., and a refrigerant circuit in which a compressor, an air-cooled heat exchanger, an expansion mechanism, and a water-cooled heat exchanger are connected, and heat is exchanged with the refrigerant in the water-cooled heat exchanger. There is known a chiller device that includes a water circuit that conveys water to a use side device provided indoors and that is used for air conditioning, machine cooling, or the like (see, for example, Patent Document 1). In the chiller device of Patent Document 1, the upper space in the casing is configured as a heat exchange chamber in which an air-cooled heat exchanger and a blower fan are provided, while the lower space is provided in a compressor, an expansion mechanism, and a water-cooled heat exchanger. Machine room.

JP 2008-202857 A

    By the way, the above-mentioned chiller device is extremely large as compared with an outdoor unit of a domestic air conditioner. Therefore, when installing the said chiller apparatus on the rooftop etc. of a building, it had to be pulled up to a rooftop using a crane etc., and there existed a problem that it cannot convey easily. In order to solve this problem, it is conceivable that the chiller device is transported separately into a plurality of parts and assembled at the installation site. However, in the chiller device of Patent Document 1, since the chiller device is not configured to be separable into a plurality of parts, the casing must be assembled at the installation site, and various components are installed in the casing to connect the piping. A lot of the assembly process had to be done at the installation site. For this reason, there is a problem that it takes time for installation work even if transport is facilitated.

    This invention is made | formed in view of this point, The objective is to aim at the improvement of a conveyance property and an assembly property regarding the chiller apparatus which has a support stand which installs a component apparatus.

    In the first invention, a compressor (30), an air-cooled heat exchanger (2), an expansion mechanism (32), and a water-cooled heat exchanger (20, 21, 120) are connected to perform a vapor compression refrigeration cycle. A water circuit (7) in which a plurality of refrigerant circuits (6) and a water pump (45) for conveying water are connected to circulate water between the water-cooled heat exchanger (20, 21, 120) and the use side device And a plurality of blower fans (3) for guiding air to the air-cooled heat exchangers (2), the refrigerant circuit (6), the water circuit (6), and the blower fan (3). A support frame (50), and the refrigerant circuit (6), the water circuit (6), and the blower fan (3) include at least the air-cooled heat exchanger (2) and the blower fan (3). A chiller composed of a plurality of air cooling units (1LF, 1RF, 1LR, 1RR) each having a plurality of air cooling units (1LF, 1RF, 1LR, 1RR) and devices other than the devices of the plurality of air cooling units (1LF, 1RF, 1LR, 1RR) The support frame (50) is composed of a plurality of detachable frame parts (51), and the devices other than the devices of the plurality of air cooling units (1LF, 1RF, 1LR, 1RR) The plurality of air cooling units (1LF, 1RF, 1LR, 1RR) are housed in at least one of the plurality of gantry portions (51), and are installed on the upper portion of the support gantry (50).

    In the first invention, the support frame (50) is configured to be separable into a plurality of frame parts (51), and devices other than the devices of the air cooling unit (1LF, 1RF, 1LR, 1RR) include at least one frame part ( 51), while a plurality of air cooling units (1LF, 1RF, 1LR, 1RR) are installed on the upper part of the support frame (50). That is, the support frame (50) and the structure installed on the upper part thereof are configured to be separable into a plurality of parts, respectively. Therefore, the support frame and the structure installed on the upper part thereof can be separated into a plurality of parts and transported to the installation site.

    According to a second aspect of the present invention, in the first aspect, the water pump (45) connected to the water circuit (6) and the water-cooled heat exchanger (20, 21, 120) include the plurality of frame parts (51 ) In the same pedestal portion (51).

    In the second invention, the water pump (45) connected to the water circuit (7) and the water-cooled heat exchanger (20, 21, 120) are accommodated in the same frame (51). The water pump (45) connected to the water circuit (7) and the water-cooled heat exchanger (20, 21, 120) require piping connection when configuring the water circuit (7). 51), it is possible to transport to the installation site with piping connected in advance, and piping connection at the installation site becomes unnecessary.

    In a third aspect based on the second aspect, the water-cooled heat exchanger (20, 21, 120) has a water inlet (48, 49) and a refrigerant inlet (72, 73) on the first surface (27a). A main body part (27) that is formed and exchanges heat between water and the refrigerant therein, and the second surface (27b) on the back side of the first surface (27a) of the main body part (27) is the gantry ( 51) is arranged along one side surface of the gantry (51).

    In a fourth aspect based on the third aspect, the other pedestal portion (51) is connected to the one side surface of the pedestal portion (51) in which the water-cooled heat exchanger (20, 21, 120) is accommodated. .

    In the third and fourth inventions, the water inlet / outlet (48, 49) and the refrigerant inlet / outlet (72, 73) have the main body (27) formed on the first side (27a) which is the same side surface. Using the water-cooled heat exchanger (20, 21, 120), the water-cooled heat exchanger (20, 21, 120) is mounted on the second surface (27b) on the back side of the first surface (27a) of the main body (27). It arrange | positions along the one side surface of this mount part (51) inside a part (51).

    By the way, the water-cooled heat exchanger (20, 21, 120) has a first surface (27a) on which water and refrigerant inlets (48, 49, 72, 73) of each main body (27) are formed. ), The piping connected to each doorway (48, 49, 72, 73) extends to the outside of the gantry (51) and is transported. And pipes connected to each inlet / outlet (48, 49, 72, 73) between the water-cooled heat exchanger (20, 21, 120) and one side of the gantry (51) It is necessary to secure a space to accommodate

    However, in the third and fourth inventions, as described above, the water-cooled heat exchanger (20, 21, 120) has the second surface (27b) to which the pipe of the main body (27) is not connected as the gantry (51). Because it is provided along one side, it is connected to each doorway (48, 49, 72, 73) between the water-cooled heat exchanger (20, 21, 120) and one side of the gantry (51). Therefore, it is not necessary to secure a space for accommodating the piping, and the interval can be reduced as much as possible. In particular, in the fourth invention, the second surface (27b) of the main body (27) of the water-cooled heat exchanger (20, 21, 120) is connected to the connection surface of the gantry (51) with the other gantry (51). Are facing each other. Therefore, no piping is provided between the connection surface of the gantry (51) and the water-cooled heat exchanger (20, 21, 120).

    According to a fifth invention, in any one of the second to fourth inventions, an electrical component unit (60) comprising a plurality of electrical components is provided, and the electrical component unit (60) includes the water-cooled heat exchanger ( 20, 21, 120) is accommodated in a gantry part (51) different from the gantry part (51) in which it is accommodated.

    In the fifth aspect of the invention, the electrical component unit (60), which may break down when moisture adheres, is separated from the water-cooled heat exchanger (20, 21, 120), in which the refrigerant may circulate and condense. ).

    According to a sixth invention, in any one of the first to fifth inventions, the support frame (50) includes the same number of the frame units (51) as the number of the air cooling units (1LF, 1RF, 1LR, 1RR). It is configured to be separable.

    In a seventh aspect based on the sixth aspect, the bottom surface of each of the air cooling units (1LF, 1RF, 1LR, 1RR) and the top surface of each of the pedestal portions (51) are formed to have substantially the same size.

    In the sixth and seventh inventions, the support frame (50) and the structure installed on the upper part thereof are configured to be separable into the same number of parts. Therefore, it is possible to separate the chiller device into a plurality of parts having the same size. In particular, in the seventh invention, the area of the upper surface of the gantry (51) is substantially equal to the area of the bottom surface of the air cooling unit (1LF, 1RF, 1LR, 1RR) installed on the upper part of the gantry (51). It is comprised so that it may become. For this reason, the chiller device can be separated into a plurality of parts having approximately the same size and transported to the installation site, and the transporting work is facilitated.

    According to an eighth invention, in any one of the first to seventh inventions, each of the air cooling units (1LF, 1RF, 1LR, 1RR) includes the compressor (30) and the air cooling heat exchanger (2 ), The blower fan (3), the expansion mechanism (32), and a casing (4) for housing them.

    In the eighth invention, each air cooling unit (1LF, 1RF, 1LR, 1RR) accommodates the compressor (30), the air cooling heat exchanger (2), the blower fan (3), the expansion mechanism (32) and these. And a casing (4) to be configured. In other words, each air cooling unit (1LF, 1RF, 1LR, 1RR) is an outdoor unit of an air conditioner widely used in houses, buildings, etc., and is an indoor unit having an air cooling heat exchanger as a use side heat exchanger. It becomes the structure similar to the outdoor unit connected.

    According to the first and second inventions, in the chiller device (10), the support frame (50) in which a part of the component equipment is accommodated and the structure installed on the upper part are each divided into a plurality of parts. Since it is configured to be separable, by transporting these in a state of being separated into a plurality of parts, for example, an elevator or the like installed at an installation site of a building or the like is used as a transport means without using a transport means such as a crane. It can be used. Therefore, the conveyance work to the installation site of the chiller device can be facilitated.

    By the way, as described above, when the support frame (50) is separated and transported to a plurality of frame parts (51), each component device connected to the same water circuit (7) has different frame parts (51 When connecting the pedestal part (51) at the installation site, it is also necessary to connect the piping of each component device of the water circuit (7) accommodated in each pedestal part (51).

    According to the second invention, the water pump (45) connected to the same water circuit (7) and the water-cooled heat exchanger (20, 21, 120) are accommodated in the same gantry (51). . For this reason, a water pump (45) connected to the same water circuit (7) that must be connected to a pipe and a water-cooled heat exchanger (20, 21, 120) must be connected in advance with the same base (51) It can be transported to the installation site in a state where it is installed on the machine. Thereby, since the effort of piping connection of the water circuit (7) at the installation site can be reduced, the installation work of the chiller device can be facilitated.

    Further, according to the third and fourth inventions, the main body part (48a, 49) and the refrigerant inlet / outlet (72, 73) formed on the first side (27a), which is the same side surface ( 27) using the water-cooled heat exchanger (20, 21, 120) having the water-cooled heat exchanger (20, 21, 120) on the back surface of the first surface (27a) of the main body (27), The second surface (27b) to which the pipe is not connected is arranged so as to be along one side surface of the gantry (51). Therefore, there is no need to secure a space for the piping connected to each entrance (48, 49, 72, 73) between the water-cooled heat exchanger (20, 21, 120) and the side surface of the gantry (51). The interval can be reduced as much as possible. Thereby, in the mount part (51) in which the water-cooled heat exchanger (20, 21, 120) is provided, the installation area of the water-cooled heat exchanger (20, 21, 120) can be suppressed as small as possible. Moreover, since each pipe is arranged so as to extend from the main body (27) of the water-cooled heat exchanger (20, 21, 120) to the inside of the gantry (51), the gantry ( 51) can be easily connected. In particular, according to the fourth aspect of the present invention, the main body (27) of the water-cooled heat exchanger (20, 21, 120) is formed on one side surface of the gantry (51) and connected to the other gantry (51). The second surface (27b) to which no pipe is connected is opposed. In other words, the pipe connected to the main body (27) of the water-cooled heat exchanger (20, 21, 120) extends toward the inside of the gantry (51) instead of the connecting surface of the gantry (51). And the connection operation | work of a mount part (51) can be performed easily, without considering these piping.

    According to the fifth aspect of the invention, the electrical component unit (60) is installed on a pedestal portion (51) different from the pedestal portion (51) in which the water circuit (7) is accommodated, so that a water-cooled heat exchanger ( 20, 21 and 120) can be prevented from adhering to the electrical component unit (60).

    Further, according to the sixth and seventh inventions, the support frame (50) and the structure installed on the upper part thereof are configured to be separable into the same number of parts. Therefore, it is possible to use, for example, an elevator or the like having a predetermined internal volume installed at an installation site of a building or the like as a transportation means by transporting these in a state of being separated into a plurality of parts having the same size. It becomes possible. Therefore, the conveyance work to the installation site of the chiller device can be facilitated. In particular, according to the seventh aspect, the chiller device can be separated into a plurality of portions having substantially the same horizontal cross-sectional size. Therefore, when the chiller device is separated into a plurality of parts and placed on a vehicle, an elevator or the like and transported, for example, the space to be secured becomes substantially equal. Therefore, the conveyance work of the chiller device can be simplified, and the conveyance work can be performed more easily.

    Moreover, according to the eighth invention, each air cooling unit (1LF, 1RF, 1LR, 1RR) is an outdoor unit of an air conditioner widely used in a house, a building, etc., and is a use side heat exchanger of a refrigerant circuit An outdoor unit connected to an indoor unit having That is, the chiller device can be easily configured by using an outdoor unit of a widely used air conditioner.

FIG. 1 is a perspective view illustrating the overall configuration of the chiller device according to the first embodiment. FIG. 2 is a piping diagram of the chiller device according to the first embodiment. FIG. 3 is a perspective view showing the arrangement position of the component devices and the piping position of the refrigerant piping in a state where the device unit of the chiller device according to Embodiment 1 is installed on the gantry. FIG. 4 is a plan view showing the arrangement position of the component devices of the device unit of the chiller device according to the first embodiment and the piping position of the refrigerant piping. FIG. 5 is a piping diagram of the chiller device according to the second embodiment. FIG. 6 is a schematic diagram illustrating the arrangement positions of the constituent devices of the device unit of the chiller device according to the second embodiment. FIG. 7 is a piping diagram of the chiller device according to the third embodiment. FIG. 8 is a schematic diagram illustrating the arrangement positions of the constituent devices of the device unit of the chiller device according to the third embodiment. FIG. 9 is a schematic diagram showing arrangement positions of constituent devices of the device unit according to another embodiment in which the compressor is provided in the device unit. FIG. 10 is a schematic view showing arrangement positions of constituent devices of the device unit according to another embodiment in which a plurality of water pumps are provided in the device unit.

    Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, below, the chiller apparatus used as a heat-source side apparatus of a multi-type air conditioning apparatus is demonstrated as an example of the chiller apparatus which concerns on this invention.

Embodiment 1 of the Invention
As shown in FIGS. 1 and 2, the chiller device (10) includes a plurality of refrigerant circuits (6), a water circuit (7), a plurality of blower fans (3), and a support frame ( 50) and. The refrigerant circuit (6), the water circuit (6) and the blower fan (3) are composed of four air cooling units (1LF, 1RF, 1LR, 1RR) installed on the upper part of the support frame (50) and the support frame ( 50) and other equipment than the above air cooling unit (1LF, 1RF, 1LR, 1RR). In the first embodiment, the devices other than the devices of the four air cooling units (1LF, 1RF, 1LR, 1RR) are configured as a single device unit (5). Each air cooling unit (1LF to 1RR) is provided with a heat source side circuit (6a) (see FIG. 2) described later of the refrigerant circuit (6), and the equipment unit (5) includes a refrigerant circuit (6) described later. The use side circuit (6b) (see FIG. 2) and the outdoor circuit (7a) (see FIG. 2) of the water circuit (7) are provided.

    Air cooling units (1LF, 1LR, 1RF, 1RR) are arranged on the upper part of the support frame (50), two units in the left-right direction and two units in the front-rear direction. It is installed. These air cooling units (1LF to 1RR) are configured identically, and the two front air cooling units (1LF, 1RF) are arranged so that the front faces forward, while the two rear air cooling units ( 1RF, 1RR) are arranged so that the front faces rearward. In other words, the left front air-cooling unit (1LF) and the right rear air-cooling unit (1RR) are provided in point-symmetric positions. The right front air-cooling unit (1RF) and the left rear-side air cooling unit (1LR) It is provided at a point-symmetrical position.

    The equipment unit (5) is installed inside the support frame (50). In the first embodiment, all the components of the device unit (5), that is, two water heat exchangers (water-cooled heat exchangers) connected to the refrigerant circuit (6) and the water circuit (7) described later ( 20, 21) (see Fig. 2) and the water pump (45) (see Fig. 2) connected to the water circuit (7) are located below the air cooling unit (1RF) on the right front side of the support frame (50). Contained.

    The support frame (50) is composed of four frame parts (51). Each pedestal portion (51) includes four connecting members for connecting up and down the four corners of two rectangular frame-shaped members (51a) and two frame-shaped members (51a) arranged vertically. (51b). The support frame (50) is configured by arranging two such frame units (51) in the left-right direction and two in the front-rear direction and connecting adjacent ones. With such a configuration, the support frame (50) is configured to be separable into a plurality of (four) frame parts (51).

<Configuration of refrigerant circuit and water circuit>
As shown in FIG. 2, the chiller device (10) includes four refrigerant circuits (6) that perform a vapor compression refrigeration cycle through circulation of refrigerant, and water supplied to a plurality of indoor units as user-side devices. And an outdoor circuit (7a) of the water circuit (7) for adjusting the temperature.

-Refrigerant circuit-
Each refrigerant circuit (6) has a heat source side circuit (6a) and a usage side circuit (6b), and the heat source side circuit (6a) and the usage side circuit (6b) include a liquid refrigerant pipe (25) and It is connected via a gas refrigerant pipe (26). In addition, each heat source side circuit (6a) of the four refrigerant circuits (6) is provided in each of the four air cooling units (1LF to 1RR), and each usage side circuit (6b) of the four refrigerant circuits (6). Constitutes a part of the equipment unit (5) accommodated in one pedestal part (51).

    Each heat source side circuit (6a) includes a four-way switching valve (31), a compressor (30), an air heat exchanger (air-cooled heat exchanger) (2), and an electronic expansion valve ( 32), an accumulator (34), and two closing valves (36, 37) are connected by a refrigerant pipe (35).

    The four-way selector valve (31) has first to fourth ports (a to d), the first port (a) and the second port (b) communicate with each other, and the third port (c) and the second port (31). 4 port (d) communicates with the first state (solid line state in FIG. 2), the first port (a) and the fourth port (d) communicate with each other, and the second port (b) and the third port (d). It is configured to switch to the second state (broken line in FIG. 2) in which the port (c) communicates.

    The compressor (30) has a suction side end connected to the outflow side of the accumulator (34) via a refrigerant pipe (35), while a discharge side end connected to the four-way switching valve (31 ) Of the first port (a).

    The air heat exchanger (2) has a gas side end connected to the second port (b) of the four-way selector valve (31) via a refrigerant pipe (35), while a liquid side end is connected to the refrigerant pipe (35). Is connected to one end of the electronic expansion valve (32). The air heat exchanger (2) is a so-called fin-and-tube heat exchanger, and exchanges heat between the air and the refrigerant. A blower fan (3) having an impeller (3a) and a drive motor (3b) is provided in the vicinity of the air heat exchanger (2), and the air exchanges air with the blower fan (3). Led to vessel (2).

    As described above, one end of the electronic expansion valve (32) is connected to the liquid side end of the air heat exchanger (2), while the other end is one end of the closing valve (36) via the refrigerant pipe (35). It is connected to the.

    The accumulator (34) has an inflow side end connected to the third port (c) of the four-way selector valve (31), while an outflow side end is connected to the compressor via the refrigerant pipe (35) as described above. It is connected to the suction side end of (30).

    As described above, one end of the closing valve (36) is connected to the electronic expansion valve (32) via the refrigerant pipe (35), and the other end is connected to the liquid refrigerant pipe (25).

    The closing valve (37) has one end connected to the fourth port (d) of the four-way switching valve (31) via the refrigerant pipe (35), and the other end connected to the gas refrigerant pipe (26). Yes.

    On the other hand, a water heat exchanger (20, 21) is connected to the four usage-side circuits (6b). In the first embodiment, each use side circuit (6b) connected to each heat source side circuit (6a) of the two air cooling units (1RF, 1RR) on the right side of FIG. 1 includes a water heat exchanger (20). Is connected, and the water heat exchanger (21) is connected to each use side circuit (6b) connected to each heat source side circuit (6a) of the two air cooling units (1LF, 1LR) on the left side of FIG. Has been.

    Each water heat exchanger (20, 21) includes a first heat transfer section (20a, 21a) and a second heat transfer section (20b, 21a) that exchanges heat with the first heat transfer section (20a, 21a). 21b) and a third heat transfer section (20c, 21c) that exchanges heat with the first heat transfer section (20a, 21a). In the water heat exchanger (20), the second heat transfer section (20b) is on the heat source side of the right rear air cooling unit (1RR) in FIG. 1 via the liquid refrigerant pipe (25) and the gas refrigerant pipe (26). The circuit (6a) is connected to the third heat transfer section (20c) via the liquid refrigerant pipe (25) and the gas refrigerant pipe (26), and the heat source side circuit (1RF) on the right front side of FIG. Connected to 6a). On the other hand, in the water heat exchanger (21), the second heat transfer section (21b) is connected to the left rear air cooling unit (1LR) of FIG. 1 via the liquid refrigerant pipe (25) and the gas refrigerant pipe (26). The third heat transfer section (21c) is connected to the heat source side circuit (6a), and the heat source side of the left front air cooling unit (1LF) in FIG. 1 through the liquid refrigerant pipe (25) and the gas refrigerant pipe (26). Connected to circuit (6a).

-Water circuit-
Two water heat exchangers (20, 21) and a water pump (45) are connected to the outdoor circuit (7a) of the water circuit (7). In the two water heat exchangers (20, 21), one ends of the first heat transfer sections (20a, 21a) are connected in series via the water pipe (40). The other end of the first heat transfer section (20a) of the water heat exchanger (20) is connected to the discharge side end of the water pump (45) via the water pipe (41), while the water heat exchanger ( The other end of the first heat transfer section (21a) of 21) is connected to the cold / hot water outlet (47) through the water pipe (42). Further, the suction side end of the water pump (45) is connected to the cold / hot water inlet (46) through the water pipe (43). With such a configuration, when the water pump (45) is driven, water drawn into the water pump (45) from the user side device via the cold / hot water inlet (46) is hydrothermally generated by the water pump (45). It is conveyed to the exchanger (20) and passes through the first heat transfer section (20a) of the water heat exchanger (20) and the first heat transfer section (21a) of the water heat exchanger (21) in this order. The water flowing through the first heat transfer section (20a, 21a) of each water heat exchanger (20, 21) is divided into each second heat transfer section (20b, 21b) and each third heat transfer section (20c, It is heated or cooled by exchanging heat with the refrigerant flowing through 21c). The water heated or cooled by exchanging heat with the refrigerant in each of the water heat exchangers (20, 21) is supplied to the use side device via the cold / hot water outlet (47).

    With such a configuration, in the chiller device (10), a cooling operation for supplying water of the water circuit (7) cooled by heat exchange with the refrigerant in the refrigerant circuit (6) to the user side device, and the refrigerant circuit (6) A heating operation is performed in which water in the water circuit (7) heated by exchanging heat with the refrigerant is supplied to the use side device.

    Specifically, in the cooling operation, in each refrigerant circuit (6), the four-way switching valve (31) is switched to the first state, and the refrigerant is the compressor (30), the air heat exchanger (2), A vapor compression refrigeration cycle is performed by circulating through the electronic expansion valve (32), the water heat exchanger (20, 21), and the accumulator (34) in this order. As a result, the air heat exchanger (2) acts as a radiator and the refrigerant dissipates heat to the air, while the water heat exchanger (20, 21) acts as an evaporator and the refrigerant absorbs heat from the water in the water circuit (7). To do. At this time, in the water circuit (7), water from the use side device is taken in from the cold / hot water inlet (46) by the water pump (45), and the water pump (45), the water heat exchanger (20), It passes through the water heat exchanger (21) in this order and is supplied to the user side device via the cold / hot water outlet (47). Therefore, the water (cold water) cooled by exchanging heat with the refrigerant in the water heat exchanger (20) and the water heat exchanger (21) is supplied to the use side device.

    On the other hand, in the heating operation, in each refrigerant circuit (6), the four-way switching valve (31) is switched to the second state, and the refrigerant is the compressor (30), the water heat exchanger (20, 21), the electronic A vapor compression refrigeration cycle is performed by circulating through the expansion valve (32), the air heat exchanger (2), and the accumulator (34) in this order. As a result, the air heat exchanger (2) becomes an evaporator and the refrigerant absorbs heat from the air, while the water heat exchanger (20, 21) becomes a condenser and the refrigerant dissipates heat to the water in the water circuit (7). To do. At this time, in the water circuit (7), water from the use side device is taken in from the cold / hot water inlet (46) by the water pump (45), and the water pump (45), the water heat exchanger (20), It passes through the water heat exchanger (21) in this order and is supplied to the user side device via the cold / hot water outlet (47). Therefore, water (hot water) heated by exchanging heat with the refrigerant in the water heat exchanger (20) and the water heat exchanger (21) is supplied to the use side device.

<Internal configuration of air cooling unit>
As described above, the four air cooling units (1LF to 1RR) are configured identically. Specifically, each air cooling unit (1LF to 1RR) includes a four-way switching valve (31), a compressor (30), an air heat exchanger (2), an electronic expansion valve (32), and an accumulator (34). Are connected to the heat source side circuit (6a) (see FIG. 2), a blower fan (3), and a casing (4) for housing them. In each air cooling unit (1LF to 1RR), a blower fan (3) is installed in the upper space of the casing (4), and an air-cooled air heat exchanger (2) is placed in the lower space of the blower fan (3). It is installed along the side where the air inlet of (4) is formed. The four-way switching valve (31), the compressor (30), the electronic expansion valve (32), and the accumulator (34) are disposed inside the air heat exchanger (2).

    Moreover, in this Embodiment 1, each air cooling unit (1LF-1RR) is an outdoor unit of the air conditioning apparatus widely used in a house, a building, etc., Comprising: It connects with the indoor unit which has the utilization side heat exchanger of a refrigerant circuit. It is configured by an outdoor unit. And as above-mentioned, the four air cooling units (1LF-1RR) are installed in the upper part of the support stand (50). Specifically, four air-cooling units (1LF to 1RR) are installed one by one on each of the four frame parts (51) constituting the support frame (50). In the first embodiment, the bottom surface of each air cooling unit (1LF, 1LR, 1RF, 1RR) and the top surface of each gantry (51) are formed to have substantially the same size. Specifically, the outer shape of the upper frame member (51a) of each pedestal portion (51) is formed to be equal to or slightly larger than the outer shape of the casing (4) of each air cooling unit (1LF to 1RR). Yes.

<Configuration of equipment unit>
As shown in FIG. 1, the support frame (50) is composed of four frame units (51) that can be separated in correspondence with the four air cooling units (1LF to 1RR). Equipment other than equipment 1RR) is housed. As described above, in the first embodiment, devices other than the devices of the air cooling unit (1LF to 1RR) are configured into a single device unit (5) and accommodated in one gantry (51). Yes.

    As shown in FIGS. 3 and 4, in the first embodiment, all the devices of the device unit (5), that is, the two water heat exchangers (20, 21) and the water pump (45) are arranged on the right front side. The air-cooling unit (1RF) is housed inside a gantry (51) (hereinafter simply referred to as a right front gantry (51)). Specifically, the two water heat exchangers (20, 21) are arranged in the left-right direction along the rear side surface of the gantry (51) on the left rear side of the gantry (51) on the right front side. Are arranged side by side. On the other hand, the water pump (45) is disposed on the right front side inside the gantry (51) on the right front side.

    Here, the two water heat exchangers (20, 21) are formed with the first to third heat transfer sections (20a to 20c, 21a to 21c), and the gas refrigerant inlet / outlet (72, 72). And the liquid refrigerant inlet / outlet (73, 73), the inlet (48), and the outlet (49) are formed on the same first side surface (27a) (front side surface in FIG. 1). It has a main body (27). Specifically, the gas refrigerant inlet / outlet (72, 72) is formed at the upper end of the first surface (27a) of each main body (27), and the second of each water heat exchanger (20, 21). It communicates with the heat transfer section (20b, 21b). On the other hand, the liquid refrigerant inlet / outlet (73, 73) is formed at a position corresponding to the gas refrigerant inlet / outlet (72, 72) in the vertical direction at the lower end of the first surface (27a) of each main body (27), It communicates with the third heat transfer section (20c, 21c) of each water heat exchanger (20, 21). Further, the inflow port (48) is formed between the gas refrigerant inlet / outlet (72, 72) at the upper end of the first surface (27a) of each main body (27) and is connected to each water heat exchanger (20, 21). ) Communicated with the first heat transfer section (20a, 21a). The outlet (49) is formed between the liquid refrigerant inlet / outlet (73, 73) at the lower end of the first surface (27a) of each main body (27), and is connected to each water heat exchanger (20, 21). It communicates with the first heat transfer section (20a, 21a).

    The outlet (49) of the right-side water heat exchanger (20) and the inlet (48) of the left-side water heat exchanger (21) are connected to the first of these water heat exchangers (20, 21). A water pipe (40) for connecting the heat transfer sections (20a, 21a) is connected. In addition, the water pump (45) is connected to a water pipe (43) connected from the front end of the gantry (51) to the cold / hot water inlet (46), and the inlet of the right water heat exchanger (20). A water pipe (41) for connecting the water discharged from the water pump (45) connected to (48) to the first heat transfer section (20a) of the right-side water heat exchanger (20) is connected. Furthermore, the outlet (49) of the left-side water heat exchanger (21) is connected to the cold / hot water outlet (47) from the first heat transfer section (21a) through the front end of the gantry (51). The incoming water pipe (42) is connected.

    In addition, gas refrigerant pipes (26, 26) are connected to the two gas refrigerant inlets and outlets (72, 72) of the right-side water heat exchanger (20), respectively, and the two liquid refrigerant inlets (73, 73) are connected to each other. Are connected to liquid refrigerant pipes (25, 25), respectively. The refrigerant pipes (25, 26) connected to the right liquid refrigerant inlet / outlet (73) and the gas refrigerant inlet / outlet (72) respectively extend to the right rear frame (51), and the frame ( 51) is connected to the shut-off valves (36, 37) of the heat source side circuit (6a) in the air cooling unit (1RR) disposed above. Similarly, the refrigerant pipes (25, 26) respectively connected to the left liquid refrigerant inlet / outlet (73) and the gas refrigerant inlet / outlet (72) are arranged above the right front frame (51). It is connected to the shut-off valve (36, 37) of the heat source side circuit (6a) in (1RF).

    Further, in the left-side water heat exchanger (21), the gas refrigerant pipes (26, 26) are connected to the two gas refrigerant inlets / outlets (72, 72), respectively, and the two liquid refrigerant inlets / outlets (73, 73) are connected. ) Are connected to liquid refrigerant pipes (25, 25), respectively. The refrigerant pipes (25, 26) connected to the liquid refrigerant inlet / outlet (73) and the gas refrigerant inlet / outlet (72) on the right side extend to the left rear frame (51), respectively. 51) is connected to the shut-off valves (36, 37) of the heat source side circuit (6a) in the air cooling unit (1LR) disposed above. Similarly, the refrigerant pipes (25, 26) connected to the liquid refrigerant inlet / outlet (73) and the gas refrigerant inlet / outlet (72) on the left side extend to the left front frame (51), respectively. 51) is connected to the shutoff valves (36, 37) of the heat source side circuit (6a) in the air cooling unit (1LF) disposed above.

    With this configuration, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated inside the same right front frame (51). ing. In addition, the two water heat exchangers (20, 21) are arranged on the second rear surface on the back side of the first surface (27a) of the main body portion (27) on the left rear side inside the right front frame portion (51). 27b) are arranged side by side in the left-right direction along the rear side surface of the gantry (51). That is, the two water heat exchangers (20, 21) are arranged such that the second surface (27b) to which the pipe is not connected is along a predetermined side surface that is connected to the other gantry (51) of the gantry (51). Is provided.

    In addition, a control unit (electric component unit) (60) that controls the entire chiller unit is installed inside the support base (50), and an air cooling unit (1RR) on the right rear side is installed. Is accommodated in the rear portion of the gantry (51). Connected to this control unit (60) is a water pump (45) housed inside the gantry (51) where the right front air cooling unit (1RF) is installed via a control cable (61) extending forward. Has been.

-Transport work and assembly work-
The same number (four) of the support frame (50) in which the device unit (5) is installed and the structure (four air cooling units (1LF to 1RR)) installed above the support frame (50). ), And is transported to the installation site. In the first embodiment, the area of the upper surface of each gantry (51) and the area of the bottom of the air cooling unit (1LF to 1RR) installed on the upper part of the gantry (51) are configured to be substantially equal. ing. That is, the horizontal sections of the gantry (51) and the air cooling units (1LF to 1RR) from which the support gantry (50) is separated are substantially equal in size. Therefore, when the chiller device (10) is separated into a plurality of parts, that is, four gantry parts (51) and four air cooling units (1LF to 1RR), for example, placed on a vehicle or an elevator, etc. In addition, the space to be secured is substantially equal. Therefore, since the carrying work is simplified, it becomes easy.

    The four frame parts (51) and the four air cooling units (1LF to 1RR) thus transported are assembled at the installation site. First, after arranging the four frame parts (51) vertically and horizontally and connecting them, the four air cooling units (1LF to 1RR) are installed so as to be installed one by one on the upper part of each frame part (51). At this time, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated in the same gantry (51) in a state where they are connected in advance by piping. Yes. Specifically, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) have two water heat exchangers (20, 21) connected to the water pipe (40 ), The water heat exchanger (20) is connected to the water pump (45) by the water pipe (41), and the water heat exchanger (21) is connected to the cold / hot water outlet (47) by the water pipe (42) The water pump (45) is accommodated in the same gantry (51) in a state of being connected to the cold / hot water inlet (46) by the water pipe (43). Thus, all the components of the same water circuit (7) are accommodated in the same pedestal part (51) in a state where the pipes are connected in advance. This eliminates the need for piping connection of these components at the installation site.

    The heat source side circuit (6a) of the four air cooling units (1LF to 1RR) and the use side circuit (6b) of the equipment unit (5) are connected to four liquid refrigerant pipes (25) and four gas refrigerant pipes ( 26) and the assembly work is completed.

-Effect of Embodiment 1-
With the above configuration, according to the first embodiment, the support frame (50) in which a part of the component equipment is accommodated is configured to be separable into the plurality of frame units (51), and the support frame (50). The structure installed at the top of the unit is composed of four separable air cooling units (1LF, 1RF, 1LR, 1RR). In other words, in the chiller device (10), the support frame (50) in which a part of the component equipment is accommodated and the structure installed on the upper part thereof can be separated into a plurality of parts, respectively. By transporting in a state of being separated into a plurality of parts, for example, an elevator or the like installed at an installation site such as a building can be used as the transport means without using a transport means such as a crane. Therefore, the conveyance work to the installation site of the chiller device (10) can be facilitated.

    By the way, as described above, when the support frame (50) is separated and transported to a plurality of frame parts (51), each component device connected to the same water circuit (7) has different frame parts (51 When connecting the pedestal part (51) at the installation site, it is also necessary to connect the piping of each component device of the water circuit (7) accommodated in each pedestal part (51).

    According to the first embodiment, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated in the same right front frame (51). It was. Therefore, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) that must be connected to the pipe must be connected in advance to the same base (51). It can be transported to the installation site in the installed state. Thereby, since it is possible to reduce the labor of pipe connection at the installation site, the installation work of the chiller device (10) can be facilitated.

    In the first embodiment, the water inlet (48), the water outlet (49), the gas refrigerant inlet / outlet (72, 72), and the liquid refrigerant inlet / outlet (73, 73) are the same. The water heat exchanger (20, 21) having the main body (27) formed on the first surface (27a) as the side surface was used. In addition, the second surface (27b) on the back side of the first surface (27a) of the main body portion (27) is connected to one side surface (right front frame portion) of the water heat exchanger (20, 21). (51) Rear side surface).

    By the way, each water heat exchanger (20, 21) has a first surface (27a) on which water and refrigerant inlets (48, 49, 72, 73) of each main body (27) are formed. ) When installed so as to face one side, the pipes connected to each doorway (48, 49, 72, 73) may extend to the outside of the gantry (51), hindering transportation and installation work. Between the water heat exchanger (20, 21) and one side surface of the gantry (51), a space for accommodating the pipes connected to the respective entrances (48, 49, 72, 73) must be secured.

    However, according to the first embodiment, as described above, each of the water heat exchangers (20, 21) is configured such that the second surface (27b) to which the pipe of the main body (27) is not connected is the gantry part on the right front side ( 51) Since it is provided along the rear side surface, each inlet / outlet (48, 49) is located between the water heat exchanger (20, 21) and the rear side surface of the right front gantry (51). , 72, 73), it is not necessary to secure a space for accommodating the pipes connected thereto, and the interval can be reduced as much as possible. As a result, the installation area of the water heat exchanger (20, 21) can be kept as small as possible in the right front gantry (51) where the water heat exchanger (20, 21) is provided. In addition, the pipes are arranged from the main body part (27) of each water heat exchanger (20, 21) so as to extend inward (frontward) of the gantry (51). In addition, the connecting work of the gantry (51) can be easily performed.

    Moreover, in this Embodiment 1, it is a side surface of the right front frame part (51) in which a water heat exchanger (20, 21) is provided, and is a rear side surface which is a connection surface with another frame part (51). In addition, the second surface (27b) to which the pipe of the main body (27) of the water heat exchanger (20, 21) is not connected is opposed. That is, the pipe connected to the main body (27) of each water heat exchanger (20, 21) extends toward the inside of the gantry (51), not the connecting surface of the gantry (51). And the connection operation | work of a mount part (51) can be performed easily, without considering these piping.

    Further, according to the first embodiment, the right front gantry unit in which the water circuit (7) in which the refrigerant may circulate through the control unit (60) which may break down when moisture adheres is accommodated. It is installed on the right rear gantry (51) different from (51). Thereby, it is possible to prevent the condensed water generated in the water heat exchanger (20, 21) from adhering to the control unit (60).

    Further, according to the first embodiment, the support frame (50) and the structure installed on the support frame (50) are configured to be separable into the same number of four parts. For this reason, for example, an elevator having a predetermined internal volume installed at an installation site of a building or the like can be used as a transport means by transporting these in a state of being separated into four parts of approximately the same size. It becomes possible. Therefore, the conveyance work to the installation site of the chiller device (10) can be facilitated.

    Furthermore, according to the first embodiment, the area of the top surface of each gantry (51) and the area of the bottom surface of each air cooling unit (1LF, 1RF, 1LR, 1RR) installed on the top of the gantry (51) Are configured to be substantially equal to each other, the chiller device (10) can be separated into a plurality of portions having substantially the same horizontal cross-sectional size. Therefore, when the chiller device (10) is separated into a plurality of parts and placed on, for example, a vehicle or an elevator, the space to be secured becomes substantially equal. Therefore, the conveyance work of the chiller device (10) can be simplified, and the conveyance work can be performed more easily.

    According to the first embodiment, each air cooling unit (1LF, 1RF, 1LR, 1RR) is an outdoor unit of an air conditioner widely used in a house, a building, etc. The configuration is the same as that of the outdoor unit connected to the indoor unit having Therefore, the chiller device (10) can be easily configured using an outdoor unit of a widely used air conditioner.

<< Embodiment 2 of the Invention >>
The chiller device (10) of the second embodiment is obtained by partially changing the configuration of the water circuit (7) in the chiller device (10) of the first embodiment.

    Specifically, as shown in FIG. 5, in the second embodiment, two water heat exchangers (20, 21) are connected to separate water circuits (7), respectively. That is, in the second embodiment, two water circuits (7) are provided. Each water circuit (7) is provided with a water pump (45). The configuration is the same as that of the first embodiment except that the two water heat exchangers (20, 21) are connected to separate water circuits (7), and the water pump (45) is driven in each water circuit (7). Then, the water sucked into the water pump (45) from the user side device through the cold / hot water inlet (46) is transferred to the water heat exchanger (20, 21) by the water pump (45), and the water heat When passing through the first heat transfer section (20a, 21a) of the exchanger (20, 21), each second heat transfer section (20b, 21b) and each third heat transfer section (20c, 21c) It is heated or cooled by exchanging heat with the refrigerant flowing through. The water heated or cooled by exchanging heat with the refrigerant in each of the water heat exchangers (20, 21) is supplied to the use side device via the cold / hot water outlet (47).

<Configuration of equipment unit>
As shown in FIG. 6, in Embodiment 2, the devices other than the devices of the air cooling unit (1LF to 1RR) are configured as a group of device units (5a, 5b) for each water circuit (7). . In other words, the second embodiment has two device units (5a, 5b). The two device units (5a, 5b) are housed in separate pedestal parts (51), respectively. In other words, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated in the same gantry (51).

    Specifically, the first equipment unit (5a) having the water heat exchanger (20) is accommodated in the right front gantry (51) and the second equipment unit (5b) having the water heat exchanger (21). ) Is housed in the left front frame (51). In each gantry (51), each water heat exchanger (20, 21) is arranged along the rear side surface of the gantry (51), and the water pump (45) is connected to the gantry (51). Located on the front side inside.

    Inside each gantry (51), each water heat exchanger (20, 21) is formed with a water inlet / outlet (48, 49) and a refrigerant inlet / outlet (72, 73) as in the first embodiment. In addition, the second surface (the rear surface in FIG. 6) on the back side of the first surface (the front surface in FIG. 6) is arranged along one side surface (the rear side surface in FIG. 6) of the gantry (51). That is, each water heat exchanger (20, 21) is provided such that the side surface to which the pipe is not connected is opposed to one side surface of the gantry (51). Therefore, there is no need to secure a space to accommodate the pipes connected to each doorway (48, 49, 72, 73) between the water heat exchanger (20, 21) and one side of the gantry (51). The interval can be reduced as much as possible. In addition, since the rear side surface, which is the connecting surface with the other base part (51), of the base part (51) faces the non-connected side of the pipe of the water heat exchanger (20, 21), the base part Since no piping is provided between the connecting surface of the section (51) and the water heat exchanger (20, 21), the mounting work of the pedestal (51) is easy without considering these pipes. Can be done.

-Transport work and assembly work-
As in the first embodiment, the support frame (50) in which the device unit (5) is installed, and the structure (four air cooling units (1LF to 1RR)) installed on the support frame (50). Is transported to the installation site in a state of being separated into the same number (four), and assembled at the installation site. First, after arranging the four frame parts (51) vertically and horizontally and connecting them, the four air cooling units (1LF to 1RR) are installed so as to be installed one by one on the upper part of each frame part (51). At this time, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated in the same gantry (51) in a state where they are connected in advance by piping. Yes. Specifically, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are connected to the water pipe (41) by the water heat exchanger (20, 21). Connected to water pump (45), water heat exchanger (20,21) connected to cold / hot water outlet (47) by water pipe (42), water pump (45) connected to cold / hot water inlet by water pipe (43) It is accommodated in the same mount part (51) in the state connected to (46). Thus, all the components of the same water circuit (7) are accommodated in the same pedestal part (51) in a state where the pipes are connected in advance. This eliminates the need for piping connection of these components at the installation site.

    The heat source side circuit (6a) of the four air cooling units (1LF to 1RR) and the use side circuit (6b) of the equipment unit (5) are connected to four liquid refrigerant pipes (25) and four gas refrigerant pipes ( 26) and the assembly work is completed.

    Thus, in Embodiment 2, a plurality of water circuits (7) are provided, and the water pump (45) and the water heat exchangers (20, 21) connected to the same water circuit (7) are the same. It is housed inside the gantry (51). Therefore, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) that must be connected to the pipe must be connected in advance to the same base (51). It can be transported to the installation site in the installed state. Thereby, since the effort of piping connection of the water circuit (7) at the installation site can be reduced, the installation work of the chiller device (10) can be facilitated.

<< Embodiment 3 of the Invention >>
The chiller device (10) of the third embodiment is obtained by partially changing the configuration of the water circuit (7) in the chiller device (10) of the first embodiment.

    Specifically, as shown in FIG. 7, in the third embodiment, one water heat exchanger (120) is provided in each of the usage side circuits (6b) of the four refrigerant circuits (6). . The four water heat exchangers (120) are connected to separate water circuits (7), respectively. That is, in the third embodiment, four water circuits (7) are provided. Each water circuit (7) is provided with a water pump (45).

    Each water heat exchanger (120) has a first heat transfer section (120a) and a second heat transfer section (120b) that exchanges heat with the first heat transfer section (120a). . Each water heat exchanger (120) is connected to the outdoor circuit (7a) of the water circuit (7) to which the first heat transfer section (120a) corresponds, and the second heat transfer section (120b) corresponds. It is connected to the user side circuit (6b) of the air cooling unit (1LF, 1RF, 1LR, 1RR). Other configurations are the same as those of the first embodiment.

    When the water pump (45) is driven in each water circuit (7), water sucked into the water pump (45) from the user side device through the cold / hot water inlet (46) is supplied by the water pump (45). The refrigerant and the heat that are transferred to the water heat exchanger (120) and flow through the second heat transfer section (120b) when passing through the first heat transfer section (120a) of the water heat exchanger (120). Exchange or heat or cool. The water heated or cooled by exchanging heat with the refrigerant in each water heat exchanger (120) is supplied to the use side device via the cold / hot water outlet (47).

<Configuration of equipment unit>
As shown in FIG. 8, in the third embodiment, the devices other than the air cooling unit (1LF to 1RR) are grouped into a device unit (5rf, 5rr, 5lf, 5lr) for each water circuit (7). It is configured. In other words, the third embodiment has four device units (5rf, 5rr, 5lf, 5lr). The four device units (5rf, 5rr, 5lf, 5lr) are housed in two inside the two gantry parts (51). Thereby, the water pump (45) and the water heat exchanger (120) connected to the same water circuit (7) are accommodated in the same gantry (51).

    Specifically, the first equipment unit (5rf) connected to the heat source side circuit (6a) in the right front air cooling unit (1RF) and the heat source side circuit (6a in the right rear air cooling unit (1RR)) And the second device unit (5rr) connected to the right front frame unit (51). On the other hand, connected to the third equipment unit (5lf) connected to the heat source side circuit (6a) in the left front air cooling unit (1LF) and to the heat source side circuit (6a) in the left rear air cooling unit (1LR) The fourth device unit (5lf) is accommodated in the left front frame (51).

    Inside the gantry (51) on the right front side, the water heat exchangers (120) of the first and second equipment units (5rf, 5rr) should be along the rear side surface of the gantry (51). They are arranged side by side in the left-right direction. On the other hand, the respective water pumps (45) of the first and second device units (5rf, 5rr) are arranged on the front side inside the right front frame unit (51). Inside the gantry part (51) on the left front side, the water heat exchangers (120) of the third and fourth equipment units (5lf, 5lr) are arranged along the rear side surface of the gantry part (51). They are arranged side by side in the left-right direction. On the other hand, the water pumps (45) of the third and fourth device units (5lf, 5lr) are arranged on the front side of the left front frame (51).

    In FIG. 8, the refrigerant piping is not shown, but the four water heat exchangers (120) of the third embodiment are also similar to the first embodiment in the gas refrigerant inlet / outlet, liquid refrigerant inlet / outlet, water The inflow port and the outflow port of water have a main body portion formed on the first surface which is the same side surface. Each of the water heat exchangers (120) has a second surface (rear surface in FIG. 8) on the rear surface of the first surface (front surface in FIG. 8) of the gantry portion (51). It arrange | positions along the back side surface. That is, each water heat exchanger (120) is provided such that the side surface to which the pipe is not connected faces one side surface of the gantry (51). Therefore, it is not necessary to secure a space for the piping connected to the refrigerant and the water inlet / outlet between the water heat exchanger (120) and one side surface of the gantry (51), and the interval is reduced as much as possible. be able to. In addition, since the side surface to which the pipe of the water heat exchanger (120) is not connected is opposed to the rear side surface, which is a connection surface with the other base portion (51), the base portion (51) 51) Since the piping is not arranged between the connecting surface and the water heat exchanger (120), it is possible to easily connect the gantry (51) without considering these piping. it can.

-Transport work and assembly work-
As in the first embodiment, the support frame (50) in which the device unit (5) is installed, and the structure (four air cooling units (1LF to 1RR)) installed on the support frame (50). Is transported to the installation site in a state of being separated into the same number (four), and assembled at the installation site. First, after arranging the four frame parts (51) vertically and horizontally and connecting them, the four air cooling units (1LF to 1RR) are installed so as to be installed one by one on the upper part of each frame part (51). At this time, the water pump (45) and the water heat exchanger (120) connected to the same water circuit (7) are accommodated in the same gantry (51) in a state of being connected in advance by piping. Specifically, the water pump (45) and the water heat exchanger (120) connected to the same water circuit (7) are connected to the water pump (45) by the water pipe (41). The water heat exchanger (120) is connected to the cold / hot water outlet (47) by the water pipe (42), and the water pump (45) is connected to the cold / hot water inlet (46) by the water pipe (43). Are accommodated in the same frame (51). Thus, all the components of the same water circuit (7) are accommodated in the same pedestal part (51) in a state where the pipes are connected in advance. This eliminates the need for piping connection of these components at the installation site.

    The heat source side circuit (6a) of the four air cooling units (1LF to 1RR) and the use side circuit (6b) of the equipment unit (5rf, 5rr, 5lf, 5lr) are composed of four liquid refrigerant pipes (25) and 4 The gas refrigerant pipe (26) is connected to complete the assembly work.

    Thus, in Embodiment 3, a plurality of water circuits (7) are provided, and the water pump (45) and the water heat exchangers (20, 21) connected to the same water circuit (7) are the same. It is housed inside the gantry (51). Therefore, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) that must be connected to the pipe must be connected in advance to the same base (51). It can be transported to the installation site in the installed state. Thereby, since the effort of piping connection of the water circuit (7) at the installation site can be reduced, the installation work of the chiller device (10) can be facilitated.

<< Other Embodiments >>
The present invention may be configured as follows with respect to the above embodiment.

    In the first embodiment, two water heat exchangers (20, 21) are arranged in the equipment unit (5), and four air cooling units (1LF to 1RR) are provided to provide one water heat exchanger. Although the configuration in which each heat source side circuit (6a) of two air cooling units (1LF, 1LR, 1RF, 1RR) is connected to (20, 21) is illustrated, the present invention is not limited to this. In the present invention, for example, two water heat exchangers (20, 21) are each provided with a fourth heat transfer unit, and two additional air cooling units are separately provided, and each of the fourth heat transfer units has its A configuration may be adopted in which a heat source side circuit of a separately provided air cooling unit is connected and each heat source side circuit of three air cooling units is connected to one water heat exchanger. Further, the number of water heat exchangers is not limited to two, but three or more water heat exchangers are provided and arranged on the same gantry (51), and each water heat exchanger is provided with each heat source side circuit of a plurality of air cooling units. You may connect.

    Moreover, in each said embodiment, as shown to FIG.2,5,7, it is provided with the refrigerant circuit (6) which has a four-way selector valve (31), and a chiller apparatus (10) with which a cooling operation and a heating operation are performed. However, the chiller device according to the present invention is not limited to this. For example, the refrigerant circuit (6) is not provided with the four-way switching valve (31), and the chiller device (10) is operated only in the cooling operation or in the heating operation. You may restrict to only.

    Further, in each of the above embodiments, a total of four air cooling units (1LF to 1RR) are arranged on the left and right and front and rear so as to correspond to the same number of gantry parts (51) on a one-to-one basis. The number of 1LF to 1RR) and the number of the gantry (51) may be different.

    In each of the above embodiments, the compressor (30) is provided in each air cooling unit (1LF, 1RF, 1LR, 1RR), but the compressor (30) is provided in each air cooling unit (1LF, 1RF, 1LR, 1RR). It is good also as providing in the inside of a support stand (50) as equipment other than the equipment of (). For example, as shown in FIG. 9, four compressors (30) may be accommodated in a gantry (51) where a left front air cooling unit (1LF) is installed. That is, a plurality of compressors (30) may be provided on the same gantry (51). For example, when a plurality of compressors (30) are connected to each other, the plurality of compressors (30) are connected to each other in advance by being accommodated in the same gantry (51) in this way. It can be transported to the installation site in the state installed in 51). Thereby, since it is possible to reduce the labor of pipe connection at the installation site, the installation work of the chiller device (10) can be facilitated.

    In each of the above embodiments, the accumulator (34) is provided in each air cooling unit (1LF, 1RF, 1LR, 1RR).

    In the first embodiment, only one water circuit (7) in which two water heat exchangers (20, 21) are connected in series is provided. A plurality of circuits (7) may be provided. In the second embodiment, two water circuits (7) are provided, and each of the two water circuits (7) is provided with one water heat exchanger and one water pump. The equipment was provided on a separate pedestal (51) for each water circuit (7), but the two water circuits (7) equipment, that is, two water heat exchangers and two water pumps Of course, it may be accommodated inside one pedestal portion (51). Even with such an arrangement, the piping connection of each water circuit (7) at the installation site is not necessary, and the installation work can be facilitated.

    Furthermore, as shown in FIG. 10, when the water circuit (7) has a plurality of water pumps (45), these water pumps (45) may be accommodated in the same gantry (51). Even in such a case, a plurality of water pumps (45) connected to each other are accommodated in the same frame (51), so that the water pumps (45) are connected to each other in advance by piping. It can be transported to the installation site in a state of being installed in the section (51). Thereby, since it is possible to reduce the labor of pipe connection at the installation site, the installation work of the chiller device (10) can be facilitated. It is more preferable that the plurality of water pumps (45) be accommodated in the same right front base (51) as the plurality of water heat exchangers (20, 21). In such a case, since both the water pump (45) and the water heat exchanger (20, 21) can be connected in advance before transporting, it is possible to reduce the trouble of connecting the piping at the installation site.

    In each of the above embodiments, as shown in FIGS. 2, 5 and 7, the air-cooling units (1LF to 1RR) are provided with the shut-off valves (36, 37). Also good.

    As described above, the present invention is useful for a chiller device that has a refrigerant circuit that performs a vapor compression refrigeration cycle and supplies a heat medium heat-exchanged with the refrigerant in the refrigerant circuit to a user side device.

1LF Front left air cooling unit (air cooling unit)
1LR Left rear air cooling unit (air cooling unit)
1RF Right front air cooling unit (air cooling unit)
1RR Right rear air cooling unit (air cooling unit)
2 Air-cooled heat exchanger
3 Blower fans
4 Casing
6 Refrigerant circuit
10 Chiller device
20, 21, 120 Water heat exchanger (water-cooled heat exchanger)
27 Body
27a first side
27b Second side
30 Compressor
32 Electronic expansion valve (expansion mechanism)
45 Water pump
48 Inlet (heat medium entrance / exit)
49 Outlet (heat medium entrance / exit)
50 Support stand
51 Mounting unit
60 Control unit (electric component unit)
72 Gas refrigerant inlet / outlet (refrigerant inlet / outlet)
73 Liquid refrigerant inlet / outlet (refrigerant inlet / outlet)

    The present invention relates to a chiller device including a refrigerant circuit that performs a vapor compression refrigeration cycle, and a water circuit that supplies water that has been heat-exchanged with the refrigerant in the refrigerant circuit to a use-side device. This is related to improvement measures.

    Conventionally, it is installed outdoors in buildings, factories, etc., and a refrigerant circuit in which a compressor, an air-cooled heat exchanger, an expansion mechanism, and a water-cooled heat exchanger are connected, and heat is exchanged with the refrigerant in the water-cooled heat exchanger. There is known a chiller device that includes a water circuit that conveys water to a use side device provided indoors and that is used for air conditioning, machine cooling, or the like (see, for example, Patent Document 1). In the chiller device of Patent Document 1, the upper space in the casing is configured as a heat exchange chamber in which an air-cooled heat exchanger and a blower fan are provided, while the lower space is provided in a compressor, an expansion mechanism, and a water-cooled heat exchanger. Machine room.

JP 2008-202857 A

    By the way, the above-mentioned chiller device is extremely large as compared with an outdoor unit of a domestic air conditioner. Therefore, when installing the said chiller apparatus on the rooftop etc. of a building, it had to be pulled up to a rooftop using a crane etc., and there existed a problem that it cannot convey easily. In order to solve this problem, it is conceivable that the chiller device is transported separately into a plurality of parts and assembled at the installation site. However, in the chiller device of Patent Document 1, since the chiller device is not configured to be separable into a plurality of parts, the casing must be assembled at the installation site, and various components are installed in the casing to connect the piping. A lot of the assembly process had to be done at the installation site. For this reason, there is a problem that it takes time for installation work even if transport is facilitated.

    This invention is made | formed in view of this point, The objective is to aim at the improvement of a conveyance property and an assembly property regarding the chiller apparatus which has a support stand which installs a component apparatus.

In the first invention, a compressor (30), an air-cooled heat exchanger (2), an expansion mechanism (32), and a water-cooled heat exchanger (20, 21, 120) are connected to perform a vapor compression refrigeration cycle. A water circuit (7) in which a plurality of refrigerant circuits (6) and a water pump (45) for conveying water are connected to circulate water between the water-cooled heat exchanger (20, 21, 120) and the use side device And a plurality of blower fans (3) for introducing air to the air-cooled heat exchangers (2), the refrigerant circuit (6), the water circuit ( 7 ), and the blower fan (3). A support frame (50), and the refrigerant circuit (6), the water circuit ( 7 ), and the blower fan (3) include at least the air-cooled heat exchanger (2) and the blower fan (3). A plurality of air-cooling units (1LF, 1RF, 1LR, 1RR) each having a plurality of air cooling units (1LF, 1RF, 1LR, 1RR) and devices other than the devices of the air-cooling units (1LF, 1RF, 1LR, 1RR). The support frame (50) is configured by a plurality of detachable frame parts (51), and the devices other than the plurality of air cooling units (1LF, 1RF, 1LR, 1RR) The plurality of air cooling units (1LF, 1RF, 1LR, 1RR) are accommodated only in a part of the plurality of frame parts (51), and the plurality of air cooling units (1LF, 1RF, 1LR, 1RR) is set up.

    In the first invention, the support frame (50) is configured to be separable into a plurality of frame parts (51), and devices other than the devices of the air cooling unit (1LF, 1RF, 1LR, 1RR) include at least one frame part ( 51), while a plurality of air cooling units (1LF, 1RF, 1LR, 1RR) are installed on the upper part of the support frame (50). That is, the support frame (50) and the structure installed on the upper part thereof are configured to be separable into a plurality of parts, respectively. Therefore, the support frame and the structure installed on the upper part thereof can be separated into a plurality of parts and transported to the installation site.

According to a second invention, in the first invention, all of the water pump (45) and the water-cooled heat exchanger (20, 21, 120) connected to the same water circuit ( 7 ) are the plurality of mounts. It is provided in the same mount part (51) of the parts (51).

In the second invention, the water pump (45) and the water-cooled heat exchanger (20, 21, 120) connected to the same water circuit (7) are accommodated in the same frame (51). The water pump (45) and water-cooled heat exchanger (20, 21, 120) connected to the same water circuit (7) require piping connections when configuring the water circuit (7). By providing in the part (51), it is possible to transport to the installation site in a state in which the pipe is connected in advance, so that piping connection at the installation site is not necessary.

    In a third aspect based on the second aspect, the water-cooled heat exchanger (20, 21, 120) has a water inlet (48, 49) and a refrigerant inlet (72, 73) on the first surface (27a). A main body part (27) that is formed and exchanges heat between water and the refrigerant therein, and the second surface (27b) on the back side of the first surface (27a) of the main body part (27) is the gantry ( 51) is arranged along one side surface of the gantry (51).

    In a fourth aspect based on the third aspect, the other pedestal portion (51) is connected to the one side surface of the pedestal portion (51) in which the water-cooled heat exchanger (20, 21, 120) is accommodated. .

    In the third and fourth inventions, the water inlet / outlet (48, 49) and the refrigerant inlet / outlet (72, 73) have the main body (27) formed on the first side (27a) which is the same side surface. Using the water-cooled heat exchanger (20, 21, 120), the water-cooled heat exchanger (20, 21, 120) is mounted on the second surface (27b) on the back side of the first surface (27a) of the main body (27). It arrange | positions along the one side surface of this mount part (51) inside a part (51).

    By the way, the water-cooled heat exchanger (20, 21, 120) has a first surface (27a) on which water and refrigerant inlets (48, 49, 72, 73) of each main body (27) are formed. ), The piping connected to each doorway (48, 49, 72, 73) extends to the outside of the gantry (51) and is transported. And pipes connected to each inlet / outlet (48, 49, 72, 73) between the water-cooled heat exchanger (20, 21, 120) and one side of the gantry (51) It is necessary to secure a space to accommodate

    However, in the third and fourth inventions, as described above, the water-cooled heat exchanger (20, 21, 120) has the second surface (27b) to which the pipe of the main body (27) is not connected as the gantry (51). Because it is provided along one side, it is connected to each doorway (48, 49, 72, 73) between the water-cooled heat exchanger (20, 21, 120) and one side of the gantry (51). Therefore, it is not necessary to secure a space for accommodating the piping, and the interval can be reduced as much as possible. In particular, in the fourth invention, the second surface (27b) of the main body (27) of the water-cooled heat exchanger (20, 21, 120) is connected to the connection surface of the gantry (51) with the other gantry (51). Are facing each other. Therefore, no piping is provided between the connection surface of the gantry (51) and the water-cooled heat exchanger (20, 21, 120).

    According to a fifth invention, in any one of the second to fourth inventions, an electrical component unit (60) comprising a plurality of electrical components is provided, and the electrical component unit (60) includes the water-cooled heat exchanger ( 20, 21, 120) is accommodated in a gantry part (51) different from the gantry part (51) in which it is accommodated.

    In the fifth aspect of the invention, the electrical component unit (60), which may break down when moisture adheres, is separated from the water-cooled heat exchanger (20, 21, 120), in which the refrigerant may circulate and condense. ).

    According to a sixth invention, in any one of the first to fifth inventions, the support frame (50) includes the same number of the frame units (51) as the number of the air cooling units (1LF, 1RF, 1LR, 1RR). It is configured to be separable.

    In a seventh aspect based on the sixth aspect, the bottom surface of each of the air cooling units (1LF, 1RF, 1LR, 1RR) and the top surface of each of the pedestal portions (51) are formed to have substantially the same size.

    In the sixth and seventh inventions, the support frame (50) and the structure installed on the upper part thereof are configured to be separable into the same number of parts. Therefore, it is possible to separate the chiller device into a plurality of parts having the same size. In particular, in the seventh invention, the area of the upper surface of the gantry (51) is substantially equal to the area of the bottom surface of the air cooling unit (1LF, 1RF, 1LR, 1RR) installed on the upper part of the gantry (51). It is comprised so that it may become. For this reason, the chiller device can be separated into a plurality of parts having approximately the same size and transported to the installation site, and the transporting work is facilitated.

    According to an eighth invention, in any one of the first to seventh inventions, each of the air cooling units (1LF, 1RF, 1LR, 1RR) includes the compressor (30) and the air cooling heat exchanger (2 ), The blower fan (3), the expansion mechanism (32), and a casing (4) for housing them.

    In the eighth invention, each air cooling unit (1LF, 1RF, 1LR, 1RR) accommodates the compressor (30), the air cooling heat exchanger (2), the blower fan (3), the expansion mechanism (32) and these. And a casing (4) to be configured. In other words, each air cooling unit (1LF, 1RF, 1LR, 1RR) is an outdoor unit of an air conditioner widely used in houses, buildings, etc., and is an indoor unit having an air cooling heat exchanger as a use side heat exchanger. It becomes the structure similar to the outdoor unit connected.

    According to the first and second inventions, in the chiller device (10), the support frame (50) in which a part of the component equipment is accommodated and the structure installed on the upper part are each divided into a plurality of parts. Since it is configured to be separable, by transporting these in a state of being separated into a plurality of parts, for example, an elevator or the like installed at an installation site of a building or the like is used as a transport means without using a transport means such as a crane. It can be used. Therefore, the conveyance work to the installation site of the chiller device can be facilitated.

    By the way, as described above, when the support frame (50) is separated and transported to a plurality of frame parts (51), each component device connected to the same water circuit (7) has different frame parts (51 When connecting the pedestal part (51) at the installation site, it is also necessary to connect the piping of each component device of the water circuit (7) accommodated in each pedestal part (51).

    According to the second invention, the water pump (45) connected to the same water circuit (7) and the water-cooled heat exchanger (20, 21, 120) are accommodated in the same gantry (51). . For this reason, a water pump (45) connected to the same water circuit (7) that must be connected to a pipe and a water-cooled heat exchanger (20, 21, 120) must be connected in advance with the same base (51) It can be transported to the installation site in a state where it is installed on the machine. Thereby, since the effort of piping connection of the water circuit (7) at the installation site can be reduced, the installation work of the chiller device can be facilitated.

    Further, according to the third and fourth inventions, the main body part (48a, 49) and the refrigerant inlet / outlet (72, 73) formed on the first side (27a), which is the same side surface ( 27) using the water-cooled heat exchanger (20, 21, 120) having the water-cooled heat exchanger (20, 21, 120) on the back surface of the first surface (27a) of the main body (27), The second surface (27b) to which the pipe is not connected is arranged so as to be along one side surface of the gantry (51). Therefore, there is no need to secure a space for the piping connected to each entrance (48, 49, 72, 73) between the water-cooled heat exchanger (20, 21, 120) and the side surface of the gantry (51). The interval can be reduced as much as possible. Thereby, in the mount part (51) in which the water-cooled heat exchanger (20, 21, 120) is provided, the installation area of the water-cooled heat exchanger (20, 21, 120) can be suppressed as small as possible. Moreover, since each pipe is arranged so as to extend from the main body (27) of the water-cooled heat exchanger (20, 21, 120) to the inside of the gantry (51), the gantry ( 51) can be easily connected. In particular, according to the fourth aspect of the present invention, the main body (27) of the water-cooled heat exchanger (20, 21, 120) is formed on one side surface of the gantry (51) and connected to the other gantry (51). The second surface (27b) to which no pipe is connected is opposed. In other words, the pipe connected to the main body (27) of the water-cooled heat exchanger (20, 21, 120) extends toward the inside of the gantry (51) instead of the connecting surface of the gantry (51). And the connection operation | work of a mount part (51) can be performed easily, without considering these piping.

    According to the fifth aspect of the invention, the electrical component unit (60) is installed on a pedestal portion (51) different from the pedestal portion (51) in which the water circuit (7) is accommodated, so that a water-cooled heat exchanger ( 20, 21 and 120) can be prevented from adhering to the electrical component unit (60).

    Further, according to the sixth and seventh inventions, the support frame (50) and the structure installed on the upper part thereof are configured to be separable into the same number of parts. Therefore, it is possible to use, for example, an elevator or the like having a predetermined internal volume installed at an installation site of a building or the like as a transportation means by transporting these in a state of being separated into a plurality of parts having the same size. It becomes possible. Therefore, the conveyance work to the installation site of the chiller device can be facilitated. In particular, according to the seventh aspect, the chiller device can be separated into a plurality of portions having substantially the same horizontal cross-sectional size. Therefore, when the chiller device is separated into a plurality of parts and placed on a vehicle, an elevator or the like and transported, for example, the space to be secured becomes substantially equal. Therefore, the conveyance work of the chiller device can be simplified, and the conveyance work can be performed more easily.

    Moreover, according to the eighth invention, each air cooling unit (1LF, 1RF, 1LR, 1RR) is an outdoor unit of an air conditioner widely used in a house, a building, etc., and is a use side heat exchanger of a refrigerant circuit An outdoor unit connected to an indoor unit having That is, the chiller device can be easily configured by using an outdoor unit of a widely used air conditioner.

FIG. 1 is a perspective view illustrating the overall configuration of the chiller device according to the first embodiment. FIG. 2 is a piping diagram of the chiller device according to the first embodiment. FIG. 3 is a perspective view showing the arrangement position of the component devices and the piping position of the refrigerant piping in a state where the device unit of the chiller device according to Embodiment 1 is installed on the gantry. FIG. 4 is a plan view showing the arrangement position of the component devices of the device unit of the chiller device according to the first embodiment and the piping position of the refrigerant piping. FIG. 5 is a piping diagram of the chiller device according to the second embodiment. FIG. 6 is a schematic diagram illustrating the arrangement positions of the constituent devices of the device unit of the chiller device according to the second embodiment. FIG. 7 is a piping diagram of the chiller device according to the third embodiment. FIG. 8 is a schematic diagram illustrating the arrangement positions of the constituent devices of the device unit of the chiller device according to the third embodiment. FIG. 9 is a schematic diagram showing arrangement positions of constituent devices of the device unit according to another embodiment in which the compressor is provided in the device unit. FIG. 10 is a schematic view showing arrangement positions of constituent devices of the device unit according to another embodiment in which a plurality of water pumps are provided in the device unit.

    Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, below, the chiller apparatus used as a heat-source side apparatus of a multi-type air conditioning apparatus is demonstrated as an example of the chiller apparatus which concerns on this invention.

Embodiment 1 of the Invention
As shown in FIGS. 1 and 2, the chiller device (10) includes a plurality of refrigerant circuits (6), a water circuit (7), a plurality of blower fans (3), and a support frame ( 50) and. The refrigerant circuit (6), the water circuit ( 7 ), and the blower fan (3) are composed of four air cooling units (1LF, 1RF, 1LR, 1RR) installed on the upper part of the support frame (50) and the support frame ( 50) and other equipment than the above air cooling unit (1LF, 1RF, 1LR, 1RR). In the first embodiment, the devices other than the devices of the four air cooling units (1LF, 1RF, 1LR, 1RR) are configured as a single device unit (5). Each air cooling unit (1LF to 1RR) is provided with a heat source side circuit (6a) (see FIG. 2) described later of the refrigerant circuit (6), and the equipment unit (5) includes a refrigerant circuit (6) described later. The use side circuit (6b) (see FIG. 2) and the outdoor circuit (7a) (see FIG. 2) of the water circuit (7) are provided.

    Air cooling units (1LF, 1LR, 1RF, 1RR) are arranged on the upper part of the support frame (50), two units in the left-right direction and two units in the front-rear direction. It is installed. These air cooling units (1LF to 1RR) are configured identically, and the two front air cooling units (1LF, 1RF) are arranged so that the front faces forward, while the two rear air cooling units ( 1RF, 1RR) are arranged so that the front faces rearward. In other words, the left front air-cooling unit (1LF) and the right rear air-cooling unit (1RR) are provided in point-symmetric positions. The right front air-cooling unit (1RF) and the left rear-side air cooling unit (1LR) It is provided at a point-symmetrical position.

    The equipment unit (5) is installed inside the support frame (50). In the first embodiment, all the components of the device unit (5), that is, two water heat exchangers (water-cooled heat exchangers) connected to the refrigerant circuit (6) and the water circuit (7) described later ( 20, 21) (see Fig. 2) and the water pump (45) (see Fig. 2) connected to the water circuit (7) are located below the air cooling unit (1RF) on the right front side of the support frame (50). Contained.

    The support frame (50) is composed of four frame parts (51). Each pedestal portion (51) includes four connecting members for connecting up and down the four corners of two rectangular frame-shaped members (51a) and two frame-shaped members (51a) arranged vertically. (51b). The support frame (50) is configured by arranging two such frame units (51) in the left-right direction and two in the front-rear direction and connecting adjacent ones. With such a configuration, the support frame (50) is configured to be separable into a plurality of (four) frame parts (51).

<Configuration of refrigerant circuit and water circuit>
As shown in FIG. 2, the chiller device (10) includes four refrigerant circuits (6) that perform a vapor compression refrigeration cycle through circulation of refrigerant, and water supplied to a plurality of indoor units as user-side devices. And an outdoor circuit (7a) of the water circuit (7) for adjusting the temperature.

-Refrigerant circuit-
Each refrigerant circuit (6) has a heat source side circuit (6a) and a usage side circuit (6b), and the heat source side circuit (6a) and the usage side circuit (6b) include a liquid refrigerant pipe (25) and It is connected via a gas refrigerant pipe (26). In addition, each heat source side circuit (6a) of the four refrigerant circuits (6) is provided in each of the four air cooling units (1LF to 1RR), and each usage side circuit (6b) of the four refrigerant circuits (6). Constitutes a part of the equipment unit (5) accommodated in one pedestal part (51).

    Each heat source side circuit (6a) includes a four-way switching valve (31), a compressor (30), an air heat exchanger (air-cooled heat exchanger) (2), and an electronic expansion valve ( 32), an accumulator (34), and two closing valves (36, 37) are connected by a refrigerant pipe (35).

    The four-way selector valve (31) has first to fourth ports (a to d), the first port (a) and the second port (b) communicate with each other, and the third port (c) and the second port (31). 4 port (d) communicates with the first state (solid line state in FIG. 2), the first port (a) and the fourth port (d) communicate with each other, and the second port (b) and the third port (d). It is configured to switch to the second state (broken line in FIG. 2) in which the port (c) communicates.

    The compressor (30) has a suction side end connected to the outflow side of the accumulator (34) via a refrigerant pipe (35), while a discharge side end connected to the four-way switching valve (31 ) Of the first port (a).

    The air heat exchanger (2) has a gas side end connected to the second port (b) of the four-way selector valve (31) via a refrigerant pipe (35), while a liquid side end is connected to the refrigerant pipe (35). Is connected to one end of the electronic expansion valve (32). The air heat exchanger (2) is a so-called fin-and-tube heat exchanger, and exchanges heat between the air and the refrigerant. A blower fan (3) having an impeller (3a) and a drive motor (3b) is provided in the vicinity of the air heat exchanger (2), and the air exchanges air with the blower fan (3). Led to vessel (2).

    As described above, one end of the electronic expansion valve (32) is connected to the liquid side end of the air heat exchanger (2), while the other end is one end of the closing valve (36) via the refrigerant pipe (35). It is connected to the.

    The accumulator (34) has an inflow side end connected to the third port (c) of the four-way selector valve (31), while an outflow side end is connected to the compressor via the refrigerant pipe (35) as described above. It is connected to the suction side end of (30).

    As described above, one end of the closing valve (36) is connected to the electronic expansion valve (32) via the refrigerant pipe (35), and the other end is connected to the liquid refrigerant pipe (25).

    The closing valve (37) has one end connected to the fourth port (d) of the four-way switching valve (31) via the refrigerant pipe (35), and the other end connected to the gas refrigerant pipe (26). Yes.

    On the other hand, a water heat exchanger (20, 21) is connected to the four usage-side circuits (6b). In the first embodiment, each use side circuit (6b) connected to each heat source side circuit (6a) of the two air cooling units (1RF, 1RR) on the right side of FIG. 1 includes a water heat exchanger (20). Is connected, and the water heat exchanger (21) is connected to each use side circuit (6b) connected to each heat source side circuit (6a) of the two air cooling units (1LF, 1LR) on the left side of FIG. Has been.

    Each water heat exchanger (20, 21) includes a first heat transfer section (20a, 21a) and a second heat transfer section (20b, 21a) that exchanges heat with the first heat transfer section (20a, 21a). 21b) and a third heat transfer section (20c, 21c) that exchanges heat with the first heat transfer section (20a, 21a). In the water heat exchanger (20), the second heat transfer section (20b) is on the heat source side of the right rear air cooling unit (1RR) in FIG. 1 via the liquid refrigerant pipe (25) and the gas refrigerant pipe (26). The circuit (6a) is connected to the third heat transfer section (20c) via the liquid refrigerant pipe (25) and the gas refrigerant pipe (26), and the heat source side circuit (1RF) on the right front side of FIG. Connected to 6a). On the other hand, in the water heat exchanger (21), the second heat transfer section (21b) is connected to the left rear air cooling unit (1LR) of FIG. 1 via the liquid refrigerant pipe (25) and the gas refrigerant pipe (26). The third heat transfer section (21c) is connected to the heat source side circuit (6a), and the heat source side of the left front air cooling unit (1LF) in FIG. 1 through the liquid refrigerant pipe (25) and the gas refrigerant pipe (26). Connected to circuit (6a).

-Water circuit-
Two water heat exchangers (20, 21) and a water pump (45) are connected to the outdoor circuit (7a) of the water circuit (7). In the two water heat exchangers (20, 21), one ends of the first heat transfer sections (20a, 21a) are connected in series via the water pipe (40). The other end of the first heat transfer section (20a) of the water heat exchanger (20) is connected to the discharge side end of the water pump (45) via the water pipe (41), while the water heat exchanger ( The other end of the first heat transfer section (21a) of 21) is connected to the cold / hot water outlet (47) through the water pipe (42). Further, the suction side end of the water pump (45) is connected to the cold / hot water inlet (46) through the water pipe (43). With such a configuration, when the water pump (45) is driven, water drawn into the water pump (45) from the user side device via the cold / hot water inlet (46) is hydrothermally generated by the water pump (45). It is conveyed to the exchanger (20) and passes through the first heat transfer section (20a) of the water heat exchanger (20) and the first heat transfer section (21a) of the water heat exchanger (21) in this order. The water flowing through the first heat transfer section (20a, 21a) of each water heat exchanger (20, 21) is divided into each second heat transfer section (20b, 21b) and each third heat transfer section (20c, It is heated or cooled by exchanging heat with the refrigerant flowing through 21c). The water heated or cooled by exchanging heat with the refrigerant in each of the water heat exchangers (20, 21) is supplied to the use side device via the cold / hot water outlet (47).

    With such a configuration, in the chiller device (10), a cooling operation for supplying water of the water circuit (7) cooled by heat exchange with the refrigerant in the refrigerant circuit (6) to the user side device, and the refrigerant circuit (6) A heating operation is performed in which water in the water circuit (7) heated by exchanging heat with the refrigerant is supplied to the use side device.

    Specifically, in the cooling operation, in each refrigerant circuit (6), the four-way switching valve (31) is switched to the first state, and the refrigerant is the compressor (30), the air heat exchanger (2), A vapor compression refrigeration cycle is performed by circulating through the electronic expansion valve (32), the water heat exchanger (20, 21), and the accumulator (34) in this order. As a result, the air heat exchanger (2) acts as a radiator and the refrigerant dissipates heat to the air, while the water heat exchanger (20, 21) acts as an evaporator and the refrigerant absorbs heat from the water in the water circuit (7). To do. At this time, in the water circuit (7), water from the use side device is taken in from the cold / hot water inlet (46) by the water pump (45), and the water pump (45), the water heat exchanger (20), It passes through the water heat exchanger (21) in this order and is supplied to the user side device via the cold / hot water outlet (47). Therefore, the water (cold water) cooled by exchanging heat with the refrigerant in the water heat exchanger (20) and the water heat exchanger (21) is supplied to the use side device.

    On the other hand, in the heating operation, in each refrigerant circuit (6), the four-way switching valve (31) is switched to the second state, and the refrigerant is the compressor (30), the water heat exchanger (20, 21), the electronic A vapor compression refrigeration cycle is performed by circulating through the expansion valve (32), the air heat exchanger (2), and the accumulator (34) in this order. As a result, the air heat exchanger (2) becomes an evaporator and the refrigerant absorbs heat from the air, while the water heat exchanger (20, 21) becomes a condenser and the refrigerant dissipates heat to the water in the water circuit (7). To do. At this time, in the water circuit (7), water from the use side device is taken in from the cold / hot water inlet (46) by the water pump (45), and the water pump (45), the water heat exchanger (20), It passes through the water heat exchanger (21) in this order and is supplied to the user side device via the cold / hot water outlet (47). Therefore, water (hot water) heated by exchanging heat with the refrigerant in the water heat exchanger (20) and the water heat exchanger (21) is supplied to the use side device.

<Internal configuration of air cooling unit>
As described above, the four air cooling units (1LF to 1RR) are configured identically. Specifically, each air cooling unit (1LF to 1RR) includes a four-way switching valve (31), a compressor (30), an air heat exchanger (2), an electronic expansion valve (32), and an accumulator (34). Are connected to the heat source side circuit (6a) (see FIG. 2), a blower fan (3), and a casing (4) for housing them. In each air cooling unit (1LF to 1RR), a blower fan (3) is installed in the upper space of the casing (4), and an air-cooled air heat exchanger (2) is placed in the lower space of the blower fan (3). It is installed along the side where the air inlet of (4) is formed. The four-way switching valve (31), the compressor (30), the electronic expansion valve (32), and the accumulator (34) are disposed inside the air heat exchanger (2).

    Moreover, in this Embodiment 1, each air cooling unit (1LF-1RR) is an outdoor unit of the air conditioning apparatus widely used in a house, a building, etc., Comprising: It connects with the indoor unit which has the utilization side heat exchanger of a refrigerant circuit. It is configured by an outdoor unit. And as above-mentioned, the four air cooling units (1LF-1RR) are installed in the upper part of the support stand (50). Specifically, four air-cooling units (1LF to 1RR) are installed one by one on each of the four frame parts (51) constituting the support frame (50). In the first embodiment, the bottom surface of each air cooling unit (1LF, 1LR, 1RF, 1RR) and the top surface of each gantry (51) are formed to have substantially the same size. Specifically, the outer shape of the upper frame member (51a) of each pedestal portion (51) is formed to be equal to or slightly larger than the outer shape of the casing (4) of each air cooling unit (1LF to 1RR). Yes.

<Configuration of equipment unit>
As shown in FIG. 1, the support frame (50) is composed of four frame units (51) that can be separated in correspondence with the four air cooling units (1LF to 1RR). Equipment other than equipment 1RR) is housed. As described above, in the first embodiment, devices other than the devices of the air cooling unit (1LF to 1RR) are configured into a single device unit (5) and accommodated in one gantry (51). Yes.

    As shown in FIGS. 3 and 4, in the first embodiment, all the devices of the device unit (5), that is, the two water heat exchangers (20, 21) and the water pump (45) are arranged on the right front side. The air-cooling unit (1RF) is housed inside a gantry (51) (hereinafter simply referred to as a right front gantry (51)). Specifically, the two water heat exchangers (20, 21) are arranged in the left-right direction along the rear side surface of the gantry (51) on the left rear side of the gantry (51) on the right front side. Are arranged side by side. On the other hand, the water pump (45) is disposed on the right front side inside the gantry (51) on the right front side.

    Here, the two water heat exchangers (20, 21) are formed with the first to third heat transfer sections (20a to 20c, 21a to 21c), and the gas refrigerant inlet / outlet (72, 72). And the liquid refrigerant inlet / outlet (73, 73), the inlet (48), and the outlet (49) are formed on the same first side surface (27a) (front side surface in FIG. 1). It has a main body (27). Specifically, the gas refrigerant inlet / outlet (72, 72) is formed at the upper end of the first surface (27a) of each main body (27), and the second of each water heat exchanger (20, 21). It communicates with the heat transfer section (20b, 21b). On the other hand, the liquid refrigerant inlet / outlet (73, 73) is formed at a position corresponding to the gas refrigerant inlet / outlet (72, 72) in the vertical direction at the lower end of the first surface (27a) of each main body (27), It communicates with the third heat transfer section (20c, 21c) of each water heat exchanger (20, 21). Further, the inflow port (48) is formed between the gas refrigerant inlet / outlet (72, 72) at the upper end of the first surface (27a) of each main body (27) and is connected to each water heat exchanger (20, 21). ) Communicated with the first heat transfer section (20a, 21a). The outlet (49) is formed between the liquid refrigerant inlet / outlet (73, 73) at the lower end of the first surface (27a) of each main body (27), and is connected to each water heat exchanger (20, 21). It communicates with the first heat transfer section (20a, 21a).

    The outlet (49) of the right-side water heat exchanger (20) and the inlet (48) of the left-side water heat exchanger (21) are connected to the first of these water heat exchangers (20, 21). A water pipe (40) for connecting the heat transfer sections (20a, 21a) is connected. In addition, the water pump (45) is connected to a water pipe (43) connected from the front end of the gantry (51) to the cold / hot water inlet (46), and the inlet of the right water heat exchanger (20). A water pipe (41) for connecting the water discharged from the water pump (45) connected to (48) to the first heat transfer section (20a) of the right-side water heat exchanger (20) is connected. Furthermore, the outlet (49) of the left-side water heat exchanger (21) is connected to the cold / hot water outlet (47) from the first heat transfer section (21a) through the front end of the gantry (51). The incoming water pipe (42) is connected.

    In addition, gas refrigerant pipes (26, 26) are connected to the two gas refrigerant inlets and outlets (72, 72) of the right-side water heat exchanger (20), respectively, and the two liquid refrigerant inlets (73, 73) are connected to each other. Are connected to liquid refrigerant pipes (25, 25), respectively. The refrigerant pipes (25, 26) connected to the right liquid refrigerant inlet / outlet (73) and the gas refrigerant inlet / outlet (72) respectively extend to the right rear frame (51), and the frame ( 51) is connected to the shut-off valves (36, 37) of the heat source side circuit (6a) in the air cooling unit (1RR) disposed above. Similarly, the refrigerant pipes (25, 26) respectively connected to the left liquid refrigerant inlet / outlet (73) and the gas refrigerant inlet / outlet (72) are arranged above the right front frame (51). It is connected to the shut-off valve (36, 37) of the heat source side circuit (6a) in (1RF).

    Further, in the left-side water heat exchanger (21), the gas refrigerant pipes (26, 26) are connected to the two gas refrigerant inlets / outlets (72, 72), respectively, and the two liquid refrigerant inlets / outlets (73, 73) are connected. ) Are connected to liquid refrigerant pipes (25, 25), respectively. The refrigerant pipes (25, 26) connected to the liquid refrigerant inlet / outlet (73) and the gas refrigerant inlet / outlet (72) on the right side extend to the left rear frame (51), respectively. 51) is connected to the shut-off valves (36, 37) of the heat source side circuit (6a) in the air cooling unit (1LR) disposed above. Similarly, the refrigerant pipes (25, 26) connected to the liquid refrigerant inlet / outlet (73) and the gas refrigerant inlet / outlet (72) on the left side extend to the left front frame (51), respectively. 51) is connected to the shutoff valves (36, 37) of the heat source side circuit (6a) in the air cooling unit (1LF) disposed above.

    With this configuration, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated inside the same right front frame (51). ing. In addition, the two water heat exchangers (20, 21) are arranged on the second rear surface on the back side of the first surface (27a) of the main body portion (27) on the left rear side inside the right front frame portion (51). 27b) are arranged side by side in the left-right direction along the rear side surface of the gantry (51). That is, the two water heat exchangers (20, 21) are arranged such that the second surface (27b) to which the pipe is not connected is along a predetermined side surface that is connected to the other gantry (51) of the gantry (51). Is provided.

    In addition, a control unit (electric component unit) (60) that controls the entire chiller unit is installed inside the support base (50), and an air cooling unit (1RR) on the right rear side is installed. Is accommodated in the rear portion of the gantry (51). Connected to this control unit (60) is a water pump (45) housed inside the gantry (51) where the right front air cooling unit (1RF) is installed via a control cable (61) extending forward. Has been.

-Transport work and assembly work-
The same number (four) of the support frame (50) in which the device unit (5) is installed and the structure (four air cooling units (1LF to 1RR)) installed above the support frame (50). ), And is transported to the installation site. In the first embodiment, the area of the upper surface of each gantry (51) and the area of the bottom of the air cooling unit (1LF to 1RR) installed on the upper part of the gantry (51) are configured to be substantially equal. ing. That is, the horizontal sections of the gantry (51) and the air cooling units (1LF to 1RR) from which the support gantry (50) is separated are substantially equal in size. Therefore, when the chiller device (10) is separated into a plurality of parts, that is, four gantry parts (51) and four air cooling units (1LF to 1RR), for example, placed on a vehicle or an elevator, etc. In addition, the space to be secured is substantially equal. Therefore, since the carrying work is simplified, it becomes easy.

    The four frame parts (51) and the four air cooling units (1LF to 1RR) thus transported are assembled at the installation site. First, after arranging the four frame parts (51) vertically and horizontally and connecting them, the four air cooling units (1LF to 1RR) are installed so as to be installed one by one on the upper part of each frame part (51). At this time, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated in the same gantry (51) in a state where they are connected in advance by piping. Yes. Specifically, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) have two water heat exchangers (20, 21) connected to the water pipe (40 ), The water heat exchanger (20) is connected to the water pump (45) by the water pipe (41), and the water heat exchanger (21) is connected to the cold / hot water outlet (47) by the water pipe (42) The water pump (45) is accommodated in the same gantry (51) in a state of being connected to the cold / hot water inlet (46) by the water pipe (43). Thus, all the components of the same water circuit (7) are accommodated in the same pedestal part (51) in a state where the pipes are connected in advance. This eliminates the need for piping connection of these components at the installation site.

    The heat source side circuit (6a) of the four air cooling units (1LF to 1RR) and the use side circuit (6b) of the equipment unit (5) are connected to four liquid refrigerant pipes (25) and four gas refrigerant pipes ( 26) and the assembly work is completed.

-Effect of Embodiment 1-
With the above configuration, according to the first embodiment, the support frame (50) in which a part of the component equipment is accommodated is configured to be separable into the plurality of frame units (51), and the support frame (50). The structure installed at the top of the unit is composed of four separable air cooling units (1LF, 1RF, 1LR, 1RR). In other words, in the chiller device (10), the support frame (50) in which a part of the component equipment is accommodated and the structure installed on the upper part thereof can be separated into a plurality of parts, respectively. By transporting in a state of being separated into a plurality of parts, for example, an elevator or the like installed at an installation site such as a building can be used as the transport means without using a transport means such as a crane. Therefore, the conveyance work to the installation site of the chiller device (10) can be facilitated.

    By the way, as described above, when the support frame (50) is separated and transported to a plurality of frame parts (51), each component device connected to the same water circuit (7) has different frame parts (51 When connecting the pedestal part (51) at the installation site, it is also necessary to connect the piping of each component device of the water circuit (7) accommodated in each pedestal part (51).

    According to the first embodiment, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated in the same right front frame (51). It was. Therefore, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) that must be connected to the pipe must be connected in advance to the same base (51). It can be transported to the installation site in the installed state. Thereby, since it is possible to reduce the labor of pipe connection at the installation site, the installation work of the chiller device (10) can be facilitated.

    In the first embodiment, the water inlet (48), the water outlet (49), the gas refrigerant inlet / outlet (72, 72), and the liquid refrigerant inlet / outlet (73, 73) are the same. The water heat exchanger (20, 21) having the main body (27) formed on the first surface (27a) as the side surface was used. In addition, the second surface (27b) on the back side of the first surface (27a) of the main body portion (27) is connected to one side surface (right front frame portion) of the water heat exchanger (20, 21). (51) Rear side surface).

    By the way, each water heat exchanger (20, 21) has a first surface (27a) on which water and refrigerant inlets (48, 49, 72, 73) of each main body (27) are formed. ) When installed so as to face one side, the pipes connected to each doorway (48, 49, 72, 73) may extend to the outside of the gantry (51), hindering transportation and installation work. Between the water heat exchanger (20, 21) and one side surface of the gantry (51), a space for accommodating the pipes connected to the respective entrances (48, 49, 72, 73) must be secured.

    However, according to the first embodiment, as described above, each of the water heat exchangers (20, 21) is configured such that the second surface (27b) to which the pipe of the main body (27) is not connected is the gantry part on the right front side ( 51) Since it is provided along the rear side surface, each inlet / outlet (48, 49) is located between the water heat exchanger (20, 21) and the rear side surface of the right front gantry (51). , 72, 73), it is not necessary to secure a space for accommodating the pipes connected thereto, and the interval can be reduced as much as possible. As a result, the installation area of the water heat exchanger (20, 21) can be kept as small as possible in the right front gantry (51) where the water heat exchanger (20, 21) is provided. In addition, the pipes are arranged from the main body part (27) of each water heat exchanger (20, 21) so as to extend inward (frontward) of the gantry (51). In addition, the connecting work of the gantry (51) can be easily performed.

    Moreover, in this Embodiment 1, it is a side surface of the right front frame part (51) in which a water heat exchanger (20, 21) is provided, and is a rear side surface which is a connection surface with another frame part (51). In addition, the second surface (27b) to which the pipe of the main body (27) of the water heat exchanger (20, 21) is not connected is opposed. That is, the pipe connected to the main body (27) of each water heat exchanger (20, 21) extends toward the inside of the gantry (51), not the connecting surface of the gantry (51). And the connection operation | work of a mount part (51) can be performed easily, without considering these piping.

    Further, according to the first embodiment, the right front gantry unit in which the water circuit (7) in which the refrigerant may circulate through the control unit (60) which may break down when moisture adheres is accommodated. It is installed on the right rear gantry (51) different from (51). Thereby, it is possible to prevent the condensed water generated in the water heat exchanger (20, 21) from adhering to the control unit (60).

    Further, according to the first embodiment, the support frame (50) and the structure installed on the support frame (50) are configured to be separable into the same number of four parts. For this reason, for example, an elevator having a predetermined internal volume installed at an installation site of a building or the like can be used as a transport means by transporting these in a state of being separated into four parts of approximately the same size. It becomes possible. Therefore, the conveyance work to the installation site of the chiller device (10) can be facilitated.

    Furthermore, according to the first embodiment, the area of the top surface of each gantry (51) and the area of the bottom surface of each air cooling unit (1LF, 1RF, 1LR, 1RR) installed on the top of the gantry (51) Are configured to be substantially equal to each other, the chiller device (10) can be separated into a plurality of portions having substantially the same horizontal cross-sectional size. Therefore, when the chiller device (10) is separated into a plurality of parts and placed on, for example, a vehicle or an elevator, the space to be secured becomes substantially equal. Therefore, the conveyance work of the chiller device (10) can be simplified, and the conveyance work can be performed more easily.

    According to the first embodiment, each air cooling unit (1LF, 1RF, 1LR, 1RR) is an outdoor unit of an air conditioner widely used in a house, a building, etc. The configuration is the same as that of the outdoor unit connected to the indoor unit having Therefore, the chiller device (10) can be easily configured using an outdoor unit of a widely used air conditioner.

<< Embodiment 2 of the Invention >>
The chiller device (10) of the second embodiment is obtained by partially changing the configuration of the water circuit (7) in the chiller device (10) of the first embodiment.

    Specifically, as shown in FIG. 5, in the second embodiment, two water heat exchangers (20, 21) are connected to separate water circuits (7), respectively. That is, in the second embodiment, two water circuits (7) are provided. Each water circuit (7) is provided with a water pump (45). The configuration is the same as that of the first embodiment except that the two water heat exchangers (20, 21) are connected to separate water circuits (7), and the water pump (45) is driven in each water circuit (7). Then, the water sucked into the water pump (45) from the user side device through the cold / hot water inlet (46) is transferred to the water heat exchanger (20, 21) by the water pump (45), and the water heat When passing through the first heat transfer section (20a, 21a) of the exchanger (20, 21), each second heat transfer section (20b, 21b) and each third heat transfer section (20c, 21c) It is heated or cooled by exchanging heat with the refrigerant flowing through. The water heated or cooled by exchanging heat with the refrigerant in each of the water heat exchangers (20, 21) is supplied to the use side device via the cold / hot water outlet (47).

<Configuration of equipment unit>
As shown in FIG. 6, in Embodiment 2, the devices other than the devices of the air cooling unit (1LF to 1RR) are configured as a group of device units (5a, 5b) for each water circuit (7). . In other words, the second embodiment has two device units (5a, 5b). The two device units (5a, 5b) are housed in separate pedestal parts (51), respectively. In other words, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated in the same gantry (51).

    Specifically, the first equipment unit (5a) having the water heat exchanger (20) is accommodated in the right front gantry (51) and the second equipment unit (5b) having the water heat exchanger (21). ) Is housed in the left front frame (51). In each gantry (51), each water heat exchanger (20, 21) is arranged along the rear side surface of the gantry (51), and the water pump (45) is connected to the gantry (51). Located on the front side inside.

    Inside each gantry (51), each water heat exchanger (20, 21) is formed with a water inlet / outlet (48, 49) and a refrigerant inlet / outlet (72, 73) as in the first embodiment. In addition, the second surface (the rear surface in FIG. 6) on the back side of the first surface (the front surface in FIG. 6) is arranged along one side surface (the rear side surface in FIG. 6) of the gantry (51). That is, each water heat exchanger (20, 21) is provided such that the side surface to which the pipe is not connected is opposed to one side surface of the gantry (51). Therefore, there is no need to secure a space to accommodate the pipes connected to each doorway (48, 49, 72, 73) between the water heat exchanger (20, 21) and one side of the gantry (51). The interval can be reduced as much as possible. In addition, since the rear side surface, which is the connecting surface with the other base part (51), of the base part (51) faces the non-connected side of the pipe of the water heat exchanger (20, 21), the base part Since no piping is provided between the connecting surface of the section (51) and the water heat exchanger (20, 21), the mounting work of the pedestal (51) is easy without considering these pipes. Can be done.

-Transport work and assembly work-
As in the first embodiment, the support frame (50) in which the device unit (5) is installed, and the structure (four air cooling units (1LF to 1RR)) installed on the support frame (50). Is transported to the installation site in a state of being separated into the same number (four), and assembled at the installation site. First, after arranging the four frame parts (51) vertically and horizontally and connecting them, the four air cooling units (1LF to 1RR) are installed so as to be installed one by one on the upper part of each frame part (51). At this time, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are accommodated in the same gantry (51) in a state where they are connected in advance by piping. Yes. Specifically, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) are connected to the water pipe (41) by the water heat exchanger (20, 21). Connected to water pump (45), water heat exchanger (20,21) connected to cold / hot water outlet (47) by water pipe (42), water pump (45) connected to cold / hot water inlet by water pipe (43) It is accommodated in the same mount part (51) in the state connected to (46). Thus, all the components of the same water circuit (7) are accommodated in the same pedestal part (51) in a state where the pipes are connected in advance. This eliminates the need for piping connection of these components at the installation site.

    The heat source side circuit (6a) of the four air cooling units (1LF to 1RR) and the use side circuit (6b) of the equipment unit (5) are connected to four liquid refrigerant pipes (25) and four gas refrigerant pipes ( 26) and the assembly work is completed.

    Thus, in Embodiment 2, a plurality of water circuits (7) are provided, and the water pump (45) and the water heat exchangers (20, 21) connected to the same water circuit (7) are the same. It is housed inside the gantry (51). Therefore, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) that must be connected to the pipe must be connected in advance to the same base (51). It can be transported to the installation site in the installed state. Thereby, since the effort of piping connection of the water circuit (7) at the installation site can be reduced, the installation work of the chiller device (10) can be facilitated.

<< Embodiment 3 of the Invention >>
The chiller device (10) of the third embodiment is obtained by partially changing the configuration of the water circuit (7) in the chiller device (10) of the first embodiment.

    Specifically, as shown in FIG. 7, in the third embodiment, one water heat exchanger (120) is provided in each of the usage side circuits (6b) of the four refrigerant circuits (6). . The four water heat exchangers (120) are connected to separate water circuits (7), respectively. That is, in the third embodiment, four water circuits (7) are provided. Each water circuit (7) is provided with a water pump (45).

    Each water heat exchanger (120) has a first heat transfer section (120a) and a second heat transfer section (120b) that exchanges heat with the first heat transfer section (120a). . Each water heat exchanger (120) is connected to the outdoor circuit (7a) of the water circuit (7) to which the first heat transfer section (120a) corresponds, and the second heat transfer section (120b) corresponds. It is connected to the user side circuit (6b) of the air cooling unit (1LF, 1RF, 1LR, 1RR). Other configurations are the same as those of the first embodiment.

    When the water pump (45) is driven in each water circuit (7), water sucked into the water pump (45) from the user side device through the cold / hot water inlet (46) is supplied by the water pump (45). The refrigerant and the heat that are transferred to the water heat exchanger (120) and flow through the second heat transfer section (120b) when passing through the first heat transfer section (120a) of the water heat exchanger (120). Exchange or heat or cool. The water heated or cooled by exchanging heat with the refrigerant in each water heat exchanger (120) is supplied to the use side device via the cold / hot water outlet (47).

<Configuration of equipment unit>
As shown in FIG. 8, in the third embodiment, the devices other than the air cooling unit (1LF to 1RR) are grouped into a device unit (5rf, 5rr, 5lf, 5lr) for each water circuit (7). It is configured. In other words, the third embodiment has four device units (5rf, 5rr, 5lf, 5lr). The four device units (5rf, 5rr, 5lf, 5lr) are housed in two inside the two gantry parts (51). Thereby, the water pump (45) and the water heat exchanger (120) connected to the same water circuit (7) are accommodated in the same gantry (51).

    Specifically, the first equipment unit (5rf) connected to the heat source side circuit (6a) in the right front air cooling unit (1RF) and the heat source side circuit (6a in the right rear air cooling unit (1RR)) And the second device unit (5rr) connected to the right front frame unit (51). On the other hand, connected to the third equipment unit (5lf) connected to the heat source side circuit (6a) in the left front air cooling unit (1LF) and to the heat source side circuit (6a) in the left rear air cooling unit (1LR) The fourth device unit (5lf) is accommodated in the left front frame (51).

    Inside the gantry (51) on the right front side, the water heat exchangers (120) of the first and second equipment units (5rf, 5rr) should be along the rear side surface of the gantry (51). They are arranged side by side in the left-right direction. On the other hand, the respective water pumps (45) of the first and second device units (5rf, 5rr) are arranged on the front side inside the right front frame unit (51). Inside the gantry part (51) on the left front side, the water heat exchangers (120) of the third and fourth equipment units (5lf, 5lr) are arranged along the rear side surface of the gantry part (51). They are arranged side by side in the left-right direction. On the other hand, the water pumps (45) of the third and fourth device units (5lf, 5lr) are arranged on the front side of the left front frame (51).

    In FIG. 8, the refrigerant piping is not shown, but the four water heat exchangers (120) of the third embodiment are also similar to the first embodiment in the gas refrigerant inlet / outlet, liquid refrigerant inlet / outlet, water The inflow port and the outflow port of water have a main body portion formed on the first surface which is the same side surface. Each of the water heat exchangers (120) has a second surface (rear surface in FIG. 8) on the rear surface of the first surface (front surface in FIG. 8) of the gantry portion (51). It arrange | positions along the back side surface. That is, each water heat exchanger (120) is provided such that the side surface to which the pipe is not connected faces one side surface of the gantry (51). Therefore, it is not necessary to secure a space for the piping connected to the refrigerant and the water inlet / outlet between the water heat exchanger (120) and one side surface of the gantry (51), and the interval is reduced as much as possible. be able to. In addition, since the side surface to which the pipe of the water heat exchanger (120) is not connected is opposed to the rear side surface, which is a connection surface with the other base portion (51), the base portion (51) 51) Since the piping is not arranged between the connecting surface and the water heat exchanger (120), it is possible to easily connect the gantry (51) without considering these piping. it can.

-Transport work and assembly work-
As in the first embodiment, the support frame (50) in which the device unit (5) is installed, and the structure (four air cooling units (1LF to 1RR)) installed on the support frame (50). Is transported to the installation site in a state of being separated into the same number (four), and assembled at the installation site. First, after arranging the four frame parts (51) vertically and horizontally and connecting them, the four air cooling units (1LF to 1RR) are installed so as to be installed one by one on the upper part of each frame part (51). At this time, the water pump (45) and the water heat exchanger (120) connected to the same water circuit (7) are accommodated in the same gantry (51) in a state of being connected in advance by piping. Specifically, the water pump (45) and the water heat exchanger (120) connected to the same water circuit (7) are connected to the water pump (45) by the water pipe (41). The water heat exchanger (120) is connected to the cold / hot water outlet (47) by the water pipe (42), and the water pump (45) is connected to the cold / hot water inlet (46) by the water pipe (43). Are accommodated in the same frame (51). Thus, all the components of the same water circuit (7) are accommodated in the same pedestal part (51) in a state where the pipes are connected in advance. This eliminates the need for piping connection of these components at the installation site.

    The heat source side circuit (6a) of the four air cooling units (1LF to 1RR) and the use side circuit (6b) of the equipment unit (5rf, 5rr, 5lf, 5lr) are composed of four liquid refrigerant pipes (25) and 4 The gas refrigerant pipe (26) is connected to complete the assembly work.

    Thus, in Embodiment 3, a plurality of water circuits (7) are provided, and the water pump (45) and the water heat exchangers (20, 21) connected to the same water circuit (7) are the same. It is housed inside the gantry (51). Therefore, the water pump (45) and the water heat exchanger (20, 21) connected to the same water circuit (7) that must be connected to the pipe must be connected in advance to the same base (51). It can be transported to the installation site in the installed state. Thereby, since the effort of piping connection of the water circuit (7) at the installation site can be reduced, the installation work of the chiller device (10) can be facilitated.

<< Other Embodiments >>
The present invention may be configured as follows with respect to the above embodiment.

    In the first embodiment, two water heat exchangers (20, 21) are arranged in the equipment unit (5), and four air cooling units (1LF to 1RR) are provided to provide one water heat exchanger. Although the configuration in which each heat source side circuit (6a) of two air cooling units (1LF, 1LR, 1RF, 1RR) is connected to (20, 21) is illustrated, the present invention is not limited to this. In the present invention, for example, two water heat exchangers (20, 21) are each provided with a fourth heat transfer unit, and two additional air cooling units are separately provided, and each of the fourth heat transfer units has its A configuration may be adopted in which a heat source side circuit of a separately provided air cooling unit is connected and each heat source side circuit of three air cooling units is connected to one water heat exchanger. Further, the number of water heat exchangers is not limited to two, but three or more water heat exchangers are provided and arranged on the same gantry (51), and each water heat exchanger is provided with each heat source side circuit of a plurality of air cooling units. You may connect.

    Moreover, in each said embodiment, as shown to FIG.2,5,7, it is provided with the refrigerant circuit (6) which has a four-way selector valve (31), and a chiller apparatus (10) with which a cooling operation and a heating operation are performed. However, the chiller device according to the present invention is not limited to this. For example, the refrigerant circuit (6) is not provided with the four-way switching valve (31), and the chiller device (10) is operated only in the cooling operation or in the heating operation. You may restrict to only.

    Further, in each of the above embodiments, a total of four air cooling units (1LF to 1RR) are arranged on the left and right and front and rear so as to correspond to the same number of gantry parts (51) on a one-to-one basis. The number of 1LF to 1RR) and the number of the gantry (51) may be different.

    In each of the above embodiments, the compressor (30) is provided in each air cooling unit (1LF, 1RF, 1LR, 1RR), but the compressor (30) is provided in each air cooling unit (1LF, 1RF, 1LR, 1RR). It is good also as providing in the inside of a support stand (50) as equipment other than the equipment of (). For example, as shown in FIG. 9, four compressors (30) may be accommodated in a gantry (51) where a left front air cooling unit (1LF) is installed. That is, a plurality of compressors (30) may be provided on the same gantry (51). For example, when a plurality of compressors (30) are connected to each other, the plurality of compressors (30) are connected to each other in advance by being accommodated in the same gantry (51) in this way. It can be transported to the installation site in the state installed in 51). Thereby, since it is possible to reduce the labor of pipe connection at the installation site, the installation work of the chiller device (10) can be facilitated.

    In each of the above embodiments, the accumulator (34) is provided in each air cooling unit (1LF, 1RF, 1LR, 1RR).

    In the first embodiment, only one water circuit (7) in which two water heat exchangers (20, 21) are connected in series is provided. A plurality of circuits (7) may be provided. In the second embodiment, two water circuits (7) are provided, and each of the two water circuits (7) is provided with one water heat exchanger and one water pump. The equipment was provided on a separate pedestal (51) for each water circuit (7), but the two water circuits (7) equipment, that is, two water heat exchangers and two water pumps Of course, it may be accommodated inside one pedestal portion (51). Even with such an arrangement, the piping connection of each water circuit (7) at the installation site is not necessary, and the installation work can be facilitated.

    Furthermore, as shown in FIG. 10, when the water circuit (7) has a plurality of water pumps (45), these water pumps (45) may be accommodated in the same gantry (51). Even in such a case, a plurality of water pumps (45) connected to each other are accommodated in the same frame (51), so that the water pumps (45) are connected to each other in advance by piping. It can be transported to the installation site in a state of being installed in the section (51). Thereby, since it is possible to reduce the labor of pipe connection at the installation site, the installation work of the chiller device (10) can be facilitated. It is more preferable that the plurality of water pumps (45) be accommodated in the same right front base (51) as the plurality of water heat exchangers (20, 21). In such a case, since both the water pump (45) and the water heat exchanger (20, 21) can be connected in advance before transporting, it is possible to reduce the trouble of connecting the piping at the installation site.

    In each of the above embodiments, as shown in FIGS. 2, 5 and 7, the air-cooling units (1LF to 1RR) are provided with the shut-off valves (36, 37). Also good.

    As described above, the present invention is useful for a chiller device that has a refrigerant circuit that performs a vapor compression refrigeration cycle and supplies a heat medium heat-exchanged with the refrigerant in the refrigerant circuit to a user side device.

1LF Front left air cooling unit (air cooling unit)
1LR Left rear air cooling unit (air cooling unit)
1RF Right front air cooling unit (air cooling unit)
1RR Right rear air cooling unit (air cooling unit)
2 Air-cooled heat exchanger
3 Blower fans
4 Casing
6 Refrigerant circuit
10 Chiller device
20, 21, 120 Water heat exchanger (water-cooled heat exchanger)
27 Body
27a first side
27b Second side
30 Compressor
32 Electronic expansion valve (expansion mechanism)
45 Water pump
48 Inlet (heat medium entrance / exit)
49 Outlet (heat medium entrance / exit)
50 Support stand
51 Mounting unit
60 Control unit (electric component unit)
72 Gas refrigerant inlet / outlet (refrigerant inlet / outlet)
73 Liquid refrigerant inlet / outlet (refrigerant inlet / outlet)

Claims (8)

A plurality of refrigerant circuits (6) in which a compressor (30), an air-cooled heat exchanger (2), an expansion mechanism (32), and a water-cooled heat exchanger (20, 21, 120) are connected to perform a vapor compression refrigeration cycle (6 ), A water pump (45) for transporting water and a water circuit (7) for circulating water between the water-cooled heat exchanger (20, 21, 120) and the user side device, and each of the air-cooled types A plurality of blower fans (3) for guiding air to the heat exchanger (2), a support frame (50) on which the refrigerant circuit (6), the water circuit (6) and the blower fan (3) are installed; A plurality of air cooling units, wherein the refrigerant circuit (6), the water circuit (6), and the blower fan (3) each include at least the air-cooled heat exchanger (2) and the blower fan (3). A chiller device comprising a unit (1LF, 1RF, 1LR, 1RR) and devices other than the devices of the plurality of air cooling units (1LF, 1RF, 1LR, 1RR)
The support frame (50) includes a plurality of detachable frame parts (51),
Devices other than the devices of the plurality of air cooling units (1LF, 1RF, 1LR, 1RR) are accommodated in at least one of the plurality of mount parts (51),
The chiller device, wherein the plurality of air cooling units (1LF, 1RF, 1LR, 1RR) are installed on an upper portion of the support frame (50). In claim 1,
The water pump (45) connected to the water circuit (6) and the water-cooled heat exchanger (20, 21, 120) are located in the same frame part (51) of the plurality of frame parts (51). A chiller device characterized in that the chiller device is provided. In claim 2,
The water-cooled heat exchanger (20, 21, 120) has a water inlet / outlet (48, 49) and a refrigerant inlet / outlet (72, 73) formed on the first surface (27a) to heat water and the refrigerant inside. A main body (27) to be replaced is provided, and the second surface (27b) on the back side of the first surface (27a) of the main body (27) is located inside the gantry (51). It is arrange | positioned so that one side surface may be followed. In claim 3,
A chiller device, wherein the other frame part (51) is connected to the one side surface of the frame part (51) in which the water-cooled heat exchanger (20, 21, 120) is accommodated. In any one of Claims 2 thru | or 4,
Equipped with an electrical component unit (60) consisting of multiple electrical components,
The chiller device, wherein the electrical component unit (60) is accommodated in a pedestal portion (51) different from the pedestal portion (51) in which the water-cooled heat exchanger (20, 21, 120) is accommodated. In any one of Claims 1 thru | or 5,
The chiller device, wherein the support frame (50) is configured to be separable into the same number of the frame units (51) as the number of the air cooling units (1LF, 1RF, 1LR, 1RR). In claim 6,
A chiller device, wherein a bottom surface of each of the air cooling units (1LF, 1RF, 1LR, 1RR) and a top surface of each of the pedestal portions (51) are formed to have substantially the same size. In any one of Claims 1 thru | or 7,
Each of the air cooling units (1LF, 1RF, 1LR, 1RR) includes the compressor (30), the air cooling heat exchanger (2), the blower fan (3), the expansion mechanism (32), A chiller device comprising a casing (4) for housing them.

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