JP6446504B2 - Air conditioner power saving device - Google Patents

Description

  The present invention relates to an apparatus for saving power by efficiently performing a cooling operation of an air conditioner, and more particularly, air that can save electricity at low cost even when it has many outdoor units such as air conditioning of a building. The present invention relates to a power saving device for a harmonic machine.

  In order to suppress the power consumption of the air conditioner during cooling operation, the technology of spraying water in a mist to the heat exchanger of the outdoor unit and taking the heat of the heat exchanger by the heat of vaporization is, for example, the following patent It is known from literature 1 and the like.

  The apparatus of Patent Document 1 guides water supplied from a water pipe to a water conduit via an electromagnetic valve, sprays it from a spray nozzle at the tip of the water conduit toward the heat exchanger of the outdoor unit, and turns it into a heat exchanger. The electromagnetic valve is housed in a box that is fixed to the upper surface of the outdoor unit.

  However, in some outdoor units, there are surfaces that encourage the ventilation of the heat exchanger, that is, the heat exchanger surface is on one surface of the housing, and there are two, three, and a plurality of surfaces (for example, the following) (See Patent Documents 2 and 3). In this case, if the spray nozzle is arranged only on one surface, the cooling effect is small. Further, if the spray nozzles are arranged on all the heat exchanger surfaces, the piping becomes complicated. Since the number and direction of the heat exchanger surfaces are different depending on the outdoor unit, when there are many outdoor units having different forms, the modes of piping are various, the piping is further complicated, and the workability is not good.

  Further, in the apparatuses of Patent Documents 2 and 3, a box-shaped main body is provided for each outdoor unit, and an electromagnetic valve (water supply valve) and a control unit for controlling the same are housed in the main body. For this reason, when many outdoor units are provided, such as air conditioning of a building, for example, there are many parts, and piping and control are complicated.

JP 2000-28230 A JP 2006-10150 A JP 2007-240107 A

  Therefore, the main object of the present invention is to enable spray nozzles to be arranged at necessary locations with a simple configuration even when there are many outdoor units, and to reduce costs.

The means for this is an air conditioner power-saving device that sprays water supplied from a water supply control unit that supplies water and controls the water supply state toward the heat exchanger surface of the outdoor unit in the air conditioner. The water supply control unit is provided at a position different from the outdoor unit, and a water guide pipe is provided for guiding water supplied from the water supply control unit to the outdoor unit, and the water supply pipe is connected to the outdoor unit. It is supported by a nearby structure and / or a conduit support that supports the conduit with respect to the outdoor unit, and extends along the heat exchanger surface of the outdoor unit. A spray nozzle that performs the spraying is provided in a portion corresponding to the heat exchanger surface, and the water supply control unit is a water storage tank that stores water, a pump that draws water in the water storage tank, and a pump that is fed from the pump. A water treatment device for reforming the water, and the pump A part of the water pumped out by the pump from between the pump and the water treatment device, comprising a solenoid valve for opening and closing a flow path of the water pumped by the movement, and a controller for driving and controlling the pump and the solenoid valve It is a power-saving apparatus of the air conditioner provided with the bypass pipe which recirculate | refluxs to the front | former stage of the said pump .

  In this configuration, the water supplied from the water supply control unit is guided to the heat exchanger surface of the outdoor unit by the water conduit and is sprayed from the spray nozzle of the water conduit provided along the heat exchanger surface. The atmosphere in the vicinity of the sprayed portion and the heat exchanger are cooled by the vaporization of the sprayed fine mist. The water guide pipe is supported by a newly installed or existing structure such as an appropriate horizontal member near the outdoor unit or a water pipe support for the outdoor unit, so it extends to an appropriate position where the outdoor unit exists. can do. Moreover, since the water supply control unit is provided at a position different from the outdoor unit, the water supply control unit can be easily installed even when the outdoor unit cannot be fixed to the upper surface of the outdoor unit or when the outdoor unit is involved.

In addition , the water supply control unit pumps out water by storing the water, a pump for pumping out the water in the water tank, a water treatment device for reforming the water sent from the pump, and driving of the pump. And a control unit that drives and controls the pump and the solenoid valve, so that the water accumulated in the water storage tank is pumped out by the pump. The spray is switched on and off. If a spray nozzle capable of spraying at a low pressure is used, spraying can be performed without a pressurizing pump.

In addition, since a bypass pipe is provided between the pump and the water treatment device to return a part of the water sent out by the pump to the front stage of the pump, the water sent out from the pump is fed to the spray nozzle. While being recirculated and returned to the pump. For this reason, even if there is little water quantity required for a spray nozzle, the flow volume which a pump sends out is ensured, and pressure can be adjusted. Normally, if only the valve is adjusted to reduce the discharge amount from the spray nozzle, there is a risk that the pump discharges less and the pump may break down. Will not cause. Therefore, an inexpensive general-purpose pump can be used instead of a special high-pressure pump.

  As an aspect of the present invention, a power-saving device for an air conditioner in which the water conduit is branched into a plurality and extends toward a plurality of outdoor units may be used.

  In this configuration, the water guide pipe can be extended in accordance with the arrangement of the outdoor unit, and therefore can be applied to an existing outdoor unit.

  As an aspect of the present invention, the water conduit is composed of a straight pipe that extends at least straight, a joint that connects the straight pipe, and an end cap that closes the end of the straight pipe, and the spray nozzle includes the joint and / Or it can be set as the power saving apparatus of the air conditioner provided in the end of the straight pipe.

  In this configuration, piping can be freely made depending on the site depending on the combination of the members, and the spray nozzle is provided at one end of the joint or the straight pipe, so that the spray nozzle can be easily fixed.

  As an aspect of the present invention, it is preferable that the water conduit support has a position adjusting unit that can adjust at least a vertical or front / rear position with respect to a structure in the vicinity of the outdoor unit or the outdoor unit. .

  In this configuration, the position of the water conduit, that is, the position of the spray nozzle can be appropriately set by the position adjusting means.

  According to the present invention, the water guide pipe extending from the water supply control unit provided at a position different from the outdoor unit is provided along the heat exchanger surface of the outdoor unit, and the spray nozzle is provided on the water guide pipe. Therefore, spray nozzles can be arranged at necessary locations with a simple configuration even for many outdoor units. For this reason, suppressing power consumption can be realized at low cost by simple construction, and the advantage of cost reduction by power saving can be fully enjoyed.

The schematic block diagram which shows the whole structure of the power saving apparatus of an air conditioner. Explanatory drawing of an action state. The disassembled perspective view of the member which comprises a water conduit. Sectional drawing of a water conduit and a water conduit support. Sectional drawing of a water conduit and a water conduit support. Sectional drawing which shows the example of attachment of a spray nozzle. Sectional drawing which shows the example of attachment of a spray nozzle. Sectional drawing which shows the example of attachment of a spray nozzle. Sectional drawing which shows the example of attachment of a spray nozzle.

An embodiment for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is a schematic configuration diagram showing an overall configuration of a power saving device 11 (hereinafter referred to as “power saving device”) of an air conditioner. As shown in FIG. 1, the power saving device 11 supplies water and supplies water. As shown in FIG. 2, the water supplied from the water supply control unit 12 that controls the state is sprayed from the spray nozzle 13 as a fine mist toward the heat exchanger surface 72 of the outdoor unit 71 in the air conditioner. It is. The heat exchanger surface 72 is a surface that allows ventilation to the heat exchanger built in the outdoor unit 71.

  2A is an example of the outdoor unit 71 having the heat exchanger surface 72 on one surface, and FIG. 2B is an example of the outdoor unit 71 having the heat exchanger surface 72 on two surfaces. In addition, the spray nozzle 13 is provided in the vicinity of all the heat exchanger surfaces 72 for the outdoor unit 71 having the heat exchanger surfaces 72 on the three and four surfaces.

The water supply control unit 12 is connected to a water conduit 14 that guides water supplied from the water supply control unit 12 to the outdoor unit 71.
The power saving device 11 can be used for a single outdoor unit 71, but is particularly suitable for use with a large number of outdoor units 71 installed on the rooftop of a building. The outdoor unit 71 may be newly installed or existing.

  The water supply control unit 12 may supply water as described above and control the supply state of the water, that is, the water supply amount, the water supply pressure, and the on / off switching of the water supply. A water storage tank 21, a pump 22 that pumps out water in the water tank 21, a water treatment device 23 that reforms the water pumped out by the pump 22, and water pumped out by driving the pump 22 An electromagnetic valve 24 that opens and closes the flow path, a pressure sensor 25 that measures the pressure of water sent from the water supply control unit 12, a rain sensor 26 that detects the presence or absence of rainfall in a place where the outdoor unit 71 is installed, A control unit 27 for driving and controlling the pump 22 and the electromagnetic valve 24 is provided.

The water storage tank 21 has a size capable of storing an appropriate amount of water necessary for the operation of the power saving apparatus 11, and includes a ball tap 21a therein. That is, the water from the water inlet 28 that supplies water to the water storage tank 21 is supplied when the ball tap 21a is lowered, and the supply of water is stopped when the ball tap 21a is raised at a predetermined water level. The water inlet 28 has a meter 28a and two gate valves 28b and 28c arranged at positions sandwiching the meter 28a.
A path downstream of the water storage tank 21 is a water discharge path 29 through which water in the water storage tank 21 is sent out.

An appropriate general-purpose pump is used as the pump 22. Between the pump 22 and the water storage tank 21 in the water discharge channel 29, a gate valve 29a and a check valve 29b are arranged in this order from the water storage tank 21 side.
A drainage channel 29c is connected to the water storage tank 21 side of the gate valve 29a. The drainage channel 29c is provided with a gate valve 29d that opens and closes.

  Between the pump 22 and the water treatment device 23 in the outlet channel 29, a check valve 29e and two gate valves 29f and 29g are disposed in order from the pump 22 side, and the latter is the latter stage of the pump 22. A bypass pipe 29h that connects between the two gate valves 29f and 29g and the front stage of the pump 22 is provided.

  The bypass pipe 29 h is for returning a part of the water sent out from the pump 22 to the front stage of the pump 22. The amount of water flowing through the bypass pipe 29h is appropriately set by adjusting the opening of the gate valve 29i provided in the bypass pipe 29h and the latter gate valve 29g of the two gate valves 29f and 29g. .

  The water treatment device 23 is for removing substances that cause scale, such as calcium and magnesium dissolved in water, and is composed of, for example, a known water softener. In addition to the water softener, for example, a calcium filter or a water heater can be used. The installation position of the water treatment device 23 may be in a stage subsequent to the pump 22, a position in front of the pump 22, or in the water storage tank 21. Between the water treatment device 23 and the electromagnetic valve 24, a gate valve 23a for maintenance of the water treatment device 23 is provided.

The electromagnetic valve 24 is for switching on / off the spray from the spray nozzle 13.
At the subsequent stage of the electromagnetic valve 24 in the water discharge channel 29, a check valve 29j and the pressure sensor 25 including a known appropriate sensor are sequentially arranged.

The rain sensor 26 is a known appropriate sensor.
The rain sensor 26 and pressure sensor 25, the pump 22 and the electromagnetic valve 24 are connected to the control unit 27.

  The control unit 27 is composed of a microcomputer or the like, and has necessary appropriate means (not shown) such as a timer, for example, and is connected to a power source (not shown) and the control unit of the air conditioner. Then, the pump 22 and the electromagnetic valve 24 are driven and controlled based on a program stored in advance and input signals from the rain sensor 26, the pressure sensor 25, and the control unit of the air conditioner in accordance with an input from an operation panel (not shown). .

  The control operation of the control unit 27 is set so as to spray intermittently when the rain sensor 26 does not detect rain and a drive signal is input from the control unit of the air conditioner. The conditions for intermittent spraying are set as appropriate assuming the time for the sprayed mist to evaporate. For example, intermittent spraying of spraying for 3 minutes, stopping for 3 minutes, and spraying again is repeated during operation of the power saving device 11. To be set.

When the rain sensor 26 detects rain or no drive signal is input from the control unit of the air conditioner, the pump 22 is not driven and spraying is not performed. In addition, when the pressure sensor 25 detects an abnormality in the pressure of the water sent out from the water supply control unit 12, or when another appropriate means detects overheating, leakage, power failure, etc. of the pump 22, the pump is stopped, Set to stop spraying.
Such a water supply control unit 12 is provided at a position different from the outdoor unit 71. Another position is a separated position that does not directly contact the outdoor unit 71.

The water conduit 14 extends along the heat exchanger surface 72 of the outdoor unit 71 as shown in FIG. The extending height may be, for example, near the upper portion of the heat exchanger surface 72.
The water conduit 14 is extended in a state of being appropriately branched into a plurality, and even when a plurality of outdoor units 71 are installed, piping can be efficiently performed along the heat exchanger surfaces 72 of all the outdoor units 71. Specifically, the water conduit 14 extends along the side where the heat exchanger surface 72 of the outdoor unit 71 is located, surrounds the plurality of outdoor units 71, or extends between the outdoor units 71, and is a relatively distant place. When the water guide pipe 14 is extended, the heat exchanger surface 72 extends between the outdoor units 71. In this way, efficient piping is performed while avoiding overlapping piping.

  In order to perform such piping, as shown in FIG. 3, the water conduit 14 includes a straight pipe 41 that extends at least straight, a joint 42 of an appropriate shape that connects the straight pipe 41, and the straight pipe 41. It is comprised by the end cap 43 which obstruct | occludes a terminal. As the joint 42, a T-shaped joint 42a that connects the straight pipe 41 in three directions, an L-shaped joint 42b that connects the straight pipe 41 in an L shape, a curved joint 42c that bends the angle of the straight pipe 41 to which the straight pipe 41 is attached, and the like. The joint 42 is used.

  The water conduit 14 is supported by a water conduit support 51 that supports the water conduit 14 with respect to a structure 73 (see FIG. 4) in the vicinity of the outdoor unit 71 and the outdoor unit 71 (see FIG. 5). The water conduit support 51 includes a position adjusting means 52 that allows at least a vertical or front / rear position to be adjusted with respect to the structure 73 in the vicinity of the outdoor unit 71 or the outdoor unit 71.

First, the conduit support 51 to be fixed to the structure 73 of the near vicinity of the outdoor unit 71 will be described with reference to FIG. If there is a structure 73 such as a horizontal member or a rack that supports the outdoor unit that can be a part along the water guide pipe 14 in the vicinity of the position where the outdoor unit 71 is provided or the position where the outdoor unit 71 exists. An appropriate conduit guide 51 that can be attached to the object 73 is used.

In FIG. 4, 71a is a heat exchanger.
The water conduit support 51 can be obtained by manufacturing a dedicated one, using existing appropriate metal fittings, or combining them.

  The water conduit support 51 shown in FIG. 4 includes a suspension bolt support 53 capable of fixing the structure 73 to be fixed to H steel, the water conduit support 51 to H steel, and the straight pipe 41 portion of the water conduit 14. An example in which the holding metal fitting 54 having a substantially C-shaped cross section is connected to the suspension bolt support member 53 and the holding metal fitting 54 are connected to each other via the position adjusting means 52 that enables relative movement in the vertical and forward and backward directions. It is.

The suspension bolt support 53 includes a main body 53a having a substantially “T” shape in a side view, a bolt nut 53b fixed to a piece below the main body 53a, and a suspension bolt support 53 that is below one of the H steels. It has the fixing bolt 53c fixed so that it may be pinched | interposed into a piece.
The holding fitting 54 has fastening pieces 54a at both ends, and the fastening pieces 54a are fastened with bolts and nuts 54b to fix the straight pipe 41 portion of the water guide pipe 14.

  The connecting fitting 55 has a horizontal piece 55a fixed to the lower piece of the suspension bolt support 53 and a vertical piece 55b suspended downward from the tip of the horizontal piece 55a. The horizontal piece 55a and the vertical piece 55b Are formed with elongated holes 55c and 55d through which bolts of the bolt nuts 53b and 54b can move.

  In the water conduit support 51 having such a configuration, the position of the bolt 73 in the elongated holes 55c and 55d is moved as necessary, regardless of the position of the structure 73 that is the base for supporting the water conduit 14. The position of the outdoor pipe 71 relative to the heat exchanger surface 72 can be appropriately adjusted by moving the position of the water conduit 14 up and down and back and forth. The elongated holes 55 c and 55 d and the bolt nuts 53 b and 54 b constitute the position adjusting means 52.

A water conduit support 51 shown in FIG. 5 includes a body fitting 56 fixed to the outer surface of the outdoor unit 71, an auxiliary fitting 57 movably attached to the body fitting 56, and a conduit pipe connected to the auxiliary fitting. 14 U-bolts 58 for holding 14 straight pipe 41 portions.

  The main body metal piece 56 is made of a band-shaped metal plate, has a closed loop shape having a trapezoidal shape in a side view, and has a horizontal piece 56a and a vertical piece 56b that form a right angle. The vertical piece 56b is a part fixed to the outer surface of the outdoor unit 71, and a fixing bolt 56c is held.

  The auxiliary metal fitting 57 is formed in a substantially concave shape when viewed from the front with both side edges bent downward, and is movable on the horizontal piece 56a on the upper surface of the main body metal piece 56 in the longitudinal direction (front-rear direction) of the horizontal piece 56a. Attached to. That is, a long hole 56d that is long in the longitudinal direction is formed in the horizontal piece 56a, and a bolt nut 57a having a bolt inserted into the long hole 56d is held at one end of the auxiliary metal fitting 57.

  The other end portion of the auxiliary metal fitting 57 is a portion for holding the straight pipe 41 portion of the water guide pipe 14, and has holding holes 57 b through which both end portions of the U bolt 58 for holding the water guide pipe 14 so as to be pressed from above are inserted. doing.

  In the water conduit support 51 having such a configuration, the position of the water conduit 14 relative to the heat exchanger surface 72 of the outdoor unit 71 can be adjusted appropriately in the front-rear direction by moving the auxiliary metal member 57 in the front-rear direction with respect to the main body metal member 56. . Further, the height of the water guide pipe 14 in the vertical direction can be adjusted by setting the position at which the body fitting 56 is fixed. The elongated hole 56d and the bolt nut 57a constitute the position adjusting means 52.

  The spray nozzle 13 is provided at a portion corresponding to the heat exchanger surface 72 of the water conduit 14 arranged in this manner. An appropriate nozzle can be used as the spray nozzle 13. For example, spraying can be performed at a low pressure (for example, about 0.25 Mpa or about 0.15 Mpa, such as 1 Mpa or less), and a small amount of water (for example, 0.09 L / min). It is good to use what can spray a finer mist, such as 0.1 L / min or less.

Mounting of injection Quirino nozzle 13, as shown in FIG. 3, it is provided on one end of the joint 42 and the straight pipe 41. The number and arrangement of the spray nozzles 13 are set as appropriate.
Although there are portions that overlap the illustration of FIG. 3, some examples of how to attach the spray nozzle 13 will be described.

Figure 6 is an example in which the spray nozzle 13 in a T-shaped joint 42a for connecting a straight pipe 41 to each other on a straight line. In other words, the T-shaped joint 42a is fixed to the straight portion 14a corresponding to the portion where the spray nozzle 13 is provided in the water conduit 14 extending horizontally along the heat exchanger surface 72, and the T-shaped joint 42a is left over. A spray nozzle 13 is fixed to the mouth.

  In the T-shaped joint 42a in the illustrated example, the spray nozzle 13 is connected to the heat exchanger surface 72 so as to be sprayed obliquely from above, but may be sprayed from obliquely below or from the front. . The spray angle can be appropriately set by selecting the joint 42. Further, the distance from the spray nozzle 13 to the heat exchanger surface 72 is appropriately set so that desired spraying can be performed based on conditions such as the angle and performance of the spray nozzle 13.

  FIG. 7 shows an example in which the spray nozzle 13 is provided at one end of the straight pipe 41. That is, a straight pipe 41 extending downward through a T-shaped joint 42a is connected to a straight portion 14a above a portion where the spray nozzle 13 is provided in the horizontally extending water conduit 14, and the tip of the straight pipe 41 is connected. A curved joint 42c that bends an obtuse angle is connected, a short straight pipe 41 is connected to the end of the curved joint 42c, and the spray nozzle 13 is provided in the straight pipe 41.

Since the spray nozzle 13 is provided via the curved joint 42 c, the spray nozzle 13 can be sprayed obliquely from above the heat exchanger surface 72. This is effective when the horizontally extending water conduit 14 cannot be disposed at a height near the upper portion of the heat exchanger surface 72, or when the outdoor units 71 are stacked in multiple stages.

  For example, when spraying the heat exchanger surface 72 of the outdoor unit 71 in the upper stage of the outdoor unit 71 that is stacked in multiple stages, a straight line corresponding to a portion where the spray nozzle 13 is provided in the horizontally extending water conduit 14. When the portion 14a is lower than the height at which the spray nozzle 13 is desired to be arranged, the straight pipe 41 may be connected so as to extend upward, as shown in FIG. 8, contrary to the example shown in FIG. Spraying may be performed from diagonally upward or from the front, as shown in FIG. The spray angle can be appropriately set by selecting the joint 42.

  FIG. 9 is an example of attachment of the spray nozzle 13 when the heat exchanger surfaces 72 of the outdoor unit 71 are opposed to each other and the distance between the heat exchanger surfaces 72 is short. The basic structure for attaching the spray nozzle 13 is the same as that shown in FIG. 7, and the straight pipe 41 is extended downward, and the short straight pipe 41 is obliquely attached to the tip of the straight pipe 41 via the curved joint 42c. The short nozzle 41 is connected to the spray nozzle 13.

However, when the spray nozzle 13 is provided as shown in FIG. 7 for each heat exchanger surface 72, two straight portions 14a of the water conduit 14 extending horizontally are required. Will increase.
For this reason, as shown in FIG. 9, two straight pipes 41 extending downward are connected to the straight portion 14 a of the water conduit 14, with the straight portion 14 a of the water conduit 14 extending horizontally as one. . Specifically, the straight line portion 14a of the water conduit 14 that extends horizontally is on the one outdoor unit 71 side, and at a position suitable for spraying the heat exchanger surface 72 of the other outdoor unit 71. Support to be. A straight pipe 41 extending straight downward is connected to the straight portion 14a of the horizontally extending water guide pipe 14 via a T-shaped joint 42a, and the other outdoor unit 71 is also connected to the straight line portion 14a via the T-shaped joint 42a. A short straight pipe 41 extending horizontally toward is connected. The straight pipe 41 extending straight downward is connected to the short straight pipe 41 extending horizontally through an L-shaped joint 42b. In this way, two straight pipes 41 extending downward are connected to the straight portion 14a of one water guide pipe 14 extending horizontally.

The spray nozzle 13 is provided at the lower end of the two straight pipes 41 arranged in parallel downward and through the curved joint 42c so as to face the far outdoor unit. The mist sprayed from the spray nozzle 13 acts on the heat exchanger surface 72 at a suitable distance so as to intersect.
Although FIG. 4 to FIG. 9 are examples, the water conduit 14 is appropriately disposed at an appropriate position with respect to the outdoor unit 71 without wasteful duplication, and the water conduit 14 is provided with the spray nozzle 13.

In the power saving device 11 configured as described above, the control unit 27 of the water supply control unit 12 is set in accordance with a program in a state where the air conditioner is driven and the rain sensor 26 does not detect rain. Thus, the pump 22 and the electromagnetic valve 24 are driven to draw water in the water storage tank 21. After the calcium is removed by the water treatment device 23, the pumped water passes through the water conduit 14, reaches the spray nozzle 13, and is intermittently sprayed from the spray nozzle 13. Water becomes fine mist by spraying and wets the fins of the heat exchanger 71a to evaporate and cool. At the same time, the mist floats in the vicinity of the heat exchanger surface 72 of the outdoor unit 71 and vaporizes like smoke. When it evaporates, it takes away the surrounding heat and cools it. Thereby, the heat exchange efficiency of the heat exchanger 71a is improved, and power saving of the air conditioner can be achieved.

  Moreover, the water supply control unit that controls the supply of water is not provided for each outdoor unit 71, but is provided at a position different from the outdoor unit 71, and the water conduit 14 is extended from the water supply control unit 12 to connect the water conduit 14. The spray nozzle 13 is provided in the water conduit 14 along the heat exchanger surface 72 of the outdoor unit 71. That is, the water supply control unit 12 can be easily installed even when the outdoor unit 71 cannot be fixed to the upper surface or the like of the outdoor unit 71 or when the outdoor unit 71 is intricately present. It is possible to flexibly respond to differences in air conditioner manufacturers and models, and can be installed regardless of whether it is an existing installation.

  Further, the water guide pipe 14 is supported by the water guide pipe support 51 with respect to the structure 73 such as a newly installed or existing horizontal member in the vicinity of the outdoor unit 71 and the outdoor unit 71, etc. Further, the material required for the piping can be reduced, and the outdoor unit 71 can be easily extended to an appropriate position.

Since the water conduit 14 is arranged along the heat exchanger surface 72 , piping is easy even in a place where many outdoor units 71 are installed, and it can be performed at a necessary place without waste. In addition, since the spray pipe 13 is provided in the water conduit 14 itself, the configuration can be simplified. For this reason, suppressing power consumption can be realized at low cost with simple construction.

In particular, the water guide pipe 14 is composed of a straight pipe 41 that extends straight, a joint 42 that connects the straight pipe 41, and an end cap 43 that closes the end of the straight pipe 41. The water conduit 14 can be branched into a plurality of pipes, and can be freely piped toward the plurality of outdoor units 71. The degree of freedom of piping is further enhanced by the conduit guide 51 having the position adjusting means 52.
Further, since the spray nozzle 13 is provided on the joint 42 and the straight pipe 41 extending along the heat exchanger surface 72, the spray nozzle 13 can be easily installed.

  Although a general-purpose pump is used as the pump 22, a bypass pipe 29 h is provided before and after the pump 22, so even if the amount of water required for the spray nozzle 13 is small, a flow rate that the pump 22 sends out is ensured and the pressure is adjusted. Can be adjusted. That is, normally, if the adjustment is made only with the valve in order to reduce the discharge amount from the spray nozzle 13, the amount of water discharged from the pump 22 may decrease and the pump 22 may break down, but the flow rate can be ensured as described above. So this will not happen. For this reason, an inexpensive general-purpose pump can be used as the pump 22 instead of a special high-pressure pump, and the cost can be reduced also in this respect.

Furthermore, since what can be sprayed at low pressure is used as the spray nozzle 13, the pump 22 can be omitted and the spray nozzle 13 can be directly connected to the water supply.
For operation, a rain sensor 26 is provided or an operation signal is input from the air conditioner so that spraying is not performed when unnecessary, and spraying is performed intermittently. Power consumption and water volume can be reduced, and cost can be reduced in this respect as well.

  Safety can also be obtained because the operation is stopped immediately due to a breaker falling when an abnormality such as water pressure or leakage occurs. Usually, since the outdoor unit is located away from the manager, if the configuration is such that the fact of the abnormality is reported to the manager by wireless communication, it can be handled quickly.

In correspondence between the configuration of the present invention and the configuration of the one aspect,
The position adjusting means of the present invention corresponds to the bolt nuts 53b and 54b and the elongated holes 55c and 55d, the bolt nut 57a and the elongated hole 56d,
The present invention is not limited to the above-described configuration, and other configurations can be adopted.

For example, the water storage tank 21, the pump 22, the water treatment device 23, the electromagnetic valve 24, and the like constituting the water supply control unit can be accommodated in one housing.
Further, the pressure sensor 25 that measures the pressure of the water to be delivered may be omitted.

DESCRIPTION OF SYMBOLS 11 ... Power-saving apparatus of an air conditioner 12 ... Water supply control part 13 ... Spray nozzle 14 ... Water transfer pipe 21 ... Water storage tank 22 ... Pump 24 ... Solenoid valve 27 ... Control part 29h ... Bypass pipe 41 ... Straight pipe 42 ... Joint 43 ... End Cap 51 ... Conducting pipe support 52 ... Position adjustment means 53b, 54b ... Bolt nut 55c, 55d ... Elongated hole 56d ... Elongated hole 57a ... Bolt nut 71 ... Outdoor unit 72 ... Heat exchanger surface 73 ... Structure

Claims (4)

A power-saving device for an air conditioner that sprays water supplied from a water supply control unit that supplies water and controls a water supply state toward a heat exchanger surface of an outdoor unit in the air conditioner,
The water supply control unit is provided at a position different from the outdoor unit, and a water guide pipe is provided for guiding water supplied from the water supply control unit to the outdoor unit,
The water conduit is supported by a structure in the vicinity of the outdoor unit and / or a water conduit support that supports the water conduit with respect to the outdoor unit, and extends along the heat exchanger surface of the outdoor unit,
A spray nozzle for performing the spraying is provided in a portion corresponding to the heat exchanger surface of the outdoor unit in the water conduit ,
The water supply control unit stores water, a pump for pumping water in the water tank, a water treatment device for reforming water sent from the pump, and water pumped by driving the pump A solenoid valve that opens and closes the flow path of the motor, and a control unit that drives and controls these pump and solenoid valve,
A power-saving device for an air conditioner , comprising: a bypass pipe that circulates a part of the water pumped out from between the pump and the water treatment device to the front stage of the pump . The power saving device for an air conditioner according to claim 1, wherein the water conduit is branched into a plurality of branches and extends toward a plurality of outdoor units. The water conduit is composed of a straight pipe extending at least straight; a joint connecting the straight pipe; and an end cap closing the end of the straight pipe;
The power saving apparatus for an air conditioner according to claim 1 or 2 , wherein the spray nozzle is provided at one end of the joint and / or straight pipe. It said conduit support is, with respect to structure or the outdoor unit in the vicinity of the outdoor unit, of claims 1 to 3 and has a position adjustment means for adjustable at least vertically or longitudinal position The power-saving apparatus of the air conditioner as described in any one of them.

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