JP2016133293A - Radiation panel and radiation air conditioning system using the same - Google Patents

Abstract

For example, a radiation panel capable of performing cooling or heating operation for each floor of a multi-layer floor or for each region of the same floor and capable of dealing with a wide range of air conditioning loads is provided.
A panel body 2 includes a plurality of different flow paths 3 and 4 through which a heat medium flows, and the flow paths 3 and 4 are formed in a plurality of grooves 9 formed in the panel body 2. The heat transfer pipes 5 and 6 for flow are inserted and formed.
[Selection] Figure 1

Description

  The present invention relates to a radiant panel used as an interior material (spandrel) having an air conditioning function, such as a ceiling or a side wall of a room, and a radiant air conditioning system using the same.

  As such a radiant panel, for example, as shown in Patent Document 1, a corrugated panel body made of a metal material excellent in heat dissipation has a meandering shape of a heat transfer pipe in which a heat medium such as cold water or hot water is caused to flow. The one arranged in the above is known.

Design Registration No. 1347139

  This type of radiant panel is installed side by side on the ceiling and side walls of the air-conditioning target space, and the panel body is cooled or heated with a heat medium such as cold water or hot water flowing through the heat transfer pipe. By radiating cold or warm heat from a large corrugated surface, the air-conditioning target space is cooled or heated.

  However, since the conventional radiant panel has only one flow path for flowing a heat medium, for example, a series of radiant panels are installed, for example, to cool or heat all rooms on one floor. The air conditioning system was unavoidable, and it was difficult to operate by cooling some rooms and areas on one floor and heating other rooms and areas. In addition, it is difficult to perform a cooling operation on some floors in a multi-story structure and a heating operation on other floors.

  The amount of radiant heat from the radiant panel can be adjusted by adjusting the temperature and flow rate of the heat medium, but the temperature control range of the heat medium and the flow rate that can flow through a single flow path are limited. It was difficult to cope with a wide range of air conditioning loads from high loads to low loads.

  The present invention has been made by paying attention to such a situation. For example, the present invention can perform cooling or heating operation for each floor or for each room, and also supports a wide range of air conditioning loads. An object of the present invention is to provide a radiation panel that can be used, and a radiation air conditioning system using the radiation panel.

  In order to achieve the above object, the present invention is configured as follows.

  (1) A radiation panel according to the present invention includes a plurality of different flow paths through which a heat medium flows in a panel body.

  According to the present invention, cooling (or heating) with a small heat load can be performed by flowing a low-temperature (or high-temperature) heat medium only in a part of a plurality of different flow paths. Cooling (or heating) with a large heat load can be performed by flowing a low-temperature (or high-temperature) heat medium through all the different flow paths of the book.

  (2) In another embodiment of the present invention, the plurality of different flow paths are arranged in the panel body such that adjacent flow paths are different.

  According to this embodiment, the plurality of different flow paths are arranged in the panel body so that the adjacent flow paths are different. For example, in the two different flow paths, a flow path for causing the low-temperature heat medium to flow Channels that flow high-temperature heat medium can be alternately arranged adjacent to each other, and different channels are evenly arranged without uneven distribution in the panel body to radiate cold or warm heat evenly. It is possible to make it.

  (3) In still another embodiment of the present invention, at least one of the plurality of different channels has a channel length in the panel body that is equal to a channel length of another channel. Different.

  According to this embodiment, the channel length in the panel body of at least one of the plurality of different channels is different from the channel length of the other channels. For each radiant panel, for example, the flow path length for flowing a low-temperature heat medium is longer than the flow path length for flowing a high-temperature heat medium that is another flow path, and the cooling capacity is compared with the heating capacity. It becomes possible to raise.

  As a result, it is possible to cope with an air conditioning load by changing the capacity of the radiating panel itself so that it is not possible to deal with only the number of radiating panels installed.

  (4) In a preferred embodiment of the present invention, a heat transfer pipe for heat medium flow is fitted into a groove formed in the panel body to form the flow path.

  According to this embodiment, a desired flow path can be easily formed only by inserting the heat transfer pipe into the groove.

  (5) In another embodiment of the present invention, the groove is formed in a substantially semicircular shape whose opening width is slightly smaller than the outer diameter of the heat transfer pipe, and the heat transfer pipe is press-fitted into the groove. .

  According to this embodiment, the outer periphery of the mounted heat transfer pipe is in contact with the inner surface of the groove portion in a range longer than a half circumference, and heat transfer from the heat transfer pipe to the panel body is favorably performed. In addition, since the opening width of the groove is narrower than the outer diameter of the pipe, the press-fitted heat transfer pipe is prevented from floating from the groove, and the inner surface of the groove and the heat transfer pipe Contact is reliably maintained over the entire length of the pipe insertion site. Further, since the heat transfer pipe once press-fitted and mounted does not easily float from the groove, the assembly work of the radiant panel becomes easy.

  (6) A radiant air-conditioning system according to the present invention includes a plurality of radiating panels according to any one of the above (1) to (5), a plurality of radiating panels adjacent to each other by a plurality of different flow paths of each radiating panel. The radiating panel group is configured to be connected in series to different flow paths of the radiating panel group, and the plurality of flow paths in series of the radiating panel group are connected to a low heat source for supplying a low temperature heat medium and a high temperature. It can be selectively connected to a high heat source that supplies the heat medium.

  According to the present invention, for example, by connecting a flow path of a part of a plurality of flow paths of the radiant panel group to a low heat source (or a high heat source), cooling with a small heat load (or Heating), and by connecting the flow paths of all of the multiple flow paths of the radiant panel group to a low heat source (or high heat source), cooling with a large heat load (or Heating).

  (7) In a preferred embodiment of the present invention, a plurality of the radiation panel groups are provided, and the plurality of channels of each radiation panel group can be selectively connected to the low heat source and the high heat source, respectively.

  According to this embodiment, each radiating panel group of a plurality of radiating panel groups is installed, for example, for each floor of a multi-level floor structure, or for each of a plurality of regions on the same floor, for example, for each floor or the same. It becomes possible to perform cooling operation or heating operation for each area of the floor.

  (8) In another embodiment of the present invention, an inflow port of one of the two channels of the radiating panel group is connected to a supply channel of a low-temperature heat medium via a valve, The outlet port of the channel is connected to the return channel of the low-temperature heat medium via a valve, and the inlet port of the other channel of the two channels is connected to the supply channel for the high-temperature heat medium. And the other outflow port of the flow path is connected to the return flow path of the high-temperature heat medium via a valve, and the inflow ports in the two flow paths are connected to a bypass flow having a valve. In addition to being connected by a road, the outflow ports in the two channels are connected by a bypass channel provided with a valve.

  According to this embodiment, the low temperature heat medium supply valve and the low temperature heat medium return valve are opened, and the other valves are closed, so that the low temperature heat medium is supplied and flowed to only one of the two channels. The flow of the heat medium in the other flow path is stopped, and the cooling operation with a low load is performed.

  In addition, the low temperature heat medium supply valve, the low temperature heat medium return valve, and the bypass valve are opened, and the low temperature heat medium supply valve and the low temperature heat medium return valve are closed. A low temperature heat medium is supplied and flown to each, and a high load cooling operation is performed by the flow of a large amount of the low temperature heat medium.

  Also, by opening the high temperature heat medium supply valve and the high temperature heat medium return valve and closing the other valve, the high temperature heat medium is supplied and flowed only to one flow path, and the heat medium in the other flow path The flow is stopped and the heating operation is performed at a low load.

  In addition, the high temperature heat medium supply valve, the high temperature heat medium return valve, and the bypass valve are opened, and the low temperature heat medium supply valve and the low temperature heat medium return valve are closed. A high-temperature heat medium is supplied and flown to each, and a high-load heating operation is performed by the flow of a large amount of high-temperature heat medium.

  Thus, according to the present invention, for example, cooling or heating can be performed for each floor in a multi-layer floor or for each region on the same floor, and for a wide range of air conditioning loads from high load to low load. Can also respond.

It is a top view of a radiation panel. It is AA sectional drawing in FIG. It is a perspective view of the principal part. It is a perspective view of the panel base material which comprises a radiation panel. It is a schematic plan view of a radiation panel group. It is a schematic block diagram of the radiation | emission air conditioning system of a multilayer floor. It is a vertical front view which shows the principal part in the radiation panel of other embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view of a radiating panel 1 according to the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG.

  The radiating panel 1 includes two flow paths 3 and 4 through which a heat medium such as cold water or hot water flows along the back surface (upper surface in the figure) of the panel body 2 formed in a corrugated plate shape. The heat transfer pipes 5 and 6 are mounted in a meandering manner. The heat transfer pipes 5 and 6 constituting the two flow paths 3 and 4 are alternately arranged so that their linear portions are adjacent to each other in parallel.

  The panel main body 2 includes a plurality of (six in this example) elongated panel base materials 7 arranged in parallel in the horizontal width direction, and a plurality of (three in this example) crosspiece members 8 along the horizontal width direction. The group of materials 8 are connected to each other from the back side and assembled to a predetermined area.

  As shown in FIG. 4, the panel base material 7 is formed in a corrugated plate shape by extruding a lightweight aluminum material, which is excellent in heat transfer and heat dissipation properties. The four groove portions 9 are formed in parallel at regular intervals, and the outer surface (the lower surface in the figure) is formed on a radiation surface having an area larger than the outer surface area of the base material. In addition, on the back surface (upper surface in the figure) of the panel base material 7 near both ends in the lateral width direction, engagement ribs 10 having a bowl-shaped cross-section as an engaging portion for connection to the crosspiece member 8 extend over the entire length of the base material. Projecting. Thus, the panel base material 7 has a high bending rigidity in the longitudinal direction of the base material due to the grooves 9 and the engaging ribs 10 extending over the entire length of the base material.

  The crosspiece member 8 is formed of a steel plate material whose cross-sectional shape is refracted in a U-shape, and is engaged at a lower end of a predetermined position in the longitudinal direction with an extension as an engaging portion for connecting the base material. A recess 11 is formed in the notch. Further, connecting holes 12 are formed at a plurality of positions in the longitudinal direction of the crosspiece member 8, and nuts 13 are welded and fixed inside thereof, so that a connecting bracket (not shown) can be connected by bolts or screwed. It has become.

  As the heat transfer pipes 5 and 6 forming the heat medium flow paths 3 and 4, aluminum pipes having an outer diameter that are closely fitted into the grooves 9 of the panel base material 7 are used, and the panel base material 7 from the heat medium flowing in the pipe is used. The heat is transferred to and diffused, so that the whole panel surface is radiated with cold or hot heat. Note that the bent portions of the meanderingly bent heat transfer pipes 5 and 6 are removed from the groove portion 9 and protrude to the panel back side (upward).

  Further, a part of the lower end edge of the crosspiece member 8 is in contact with the heat transfer pipes 5 and 6 fitted into the groove portion 9, and the heat transfer pipes 5 and 6 are prevented from being lifted from the groove portion 9.

  In the two central groove portions 9 to which the heat transfer pipes 5 and 6 are attached, the opening end portions 9a are slightly projected to the panel back side along the circumferential direction of the groove portions, and the outer diameter of the heat transfer pipes 5 and 6 is reduced. It is formed in a partly circular groove extending slightly deeper than half. Therefore, the opening width of the groove portion 9 is slightly smaller than the outer diameter of the heat transfer pipes 5 and 6, and when the heat transfer pipes 5 and 6 are attached to the groove portion 9, The heat transfer pipes 5 and 6 are press-fitted into the groove portion 9 while elastically deforming the portion 9a.

  The heat transfer pipes 5 and 6 thus press-fitted and attached come into contact with the inner peripheral surface of the groove portion 9 in a range longer than a half circumference, and heat transfer from the heat transfer pipes 5 and 6 to the panel base material 7 is performed. The contact area to be performed is secured as large as possible. Further, since the opening width of the groove portion 9 is narrower than the outer diameter of the pipe, the heat transfer pipes 5 and 6 that are press-fitted and attached do not come out of the groove portion 9 unless a large external force is applied, and the crosspiece member 8 The heat transfer pipes 5 and 6 are prevented from being lifted even at a position where the pressing by the pressure does not act, and the contact between the inner surface of the groove 9 and the heat transfer pipes 5 and 6 is reliably maintained over the entire length of the pipe insertion site. Further, in the assembling process of the radiating panel 1 and the attaching operation to the ceiling or wall surface of the room, the heat transfer pipes 5 and 6 that are press-fitted and attached do not float from the groove portion 9, so that the operation becomes easy.

  In assembling the radiating panel 1, a predetermined plurality of panel base materials 7 are arranged to constitute the panel body 2, and the heat transfer pipes 5 and 6 are bent in a meandering manner and fitted into the groove portion 9, and then The panel base material 7 group is connected by the member 8. In this case, by strongly pressing the crosspiece member 8 from above on the arrayed panel base materials 7 group, the engagement rib 10 enters the engagement recess 11 and is locked while elastically deforming.

  When the radiating panel 1 is assembled as an interior material for the ceiling, the crosspiece member 8 is fixed and arranged first, and then the panel main body 2 is lifted and pressed against the crosspiece member 8 from below, so that the engagement rib 10 and The panel body 2 can also be locked and connected to the crosspiece member 8 via the engaging recess 11.

  The single radiating panel 1 is configured as described above. For example, as shown in FIG. 5, a plurality of radiating panels 1 are arranged to form a heat radiating portion 20 having a desired area to be mounted on a ceiling surface or a wall surface. At the same time, the two heat transfer pipes 5 and 6 of each radiating panel 1 are sequentially connected in series to form a radiating panel group in which the two flow paths 3 and 4 are formed in series.

  FIG. 6 shows a schematic configuration of a radiant air-conditioning system in which the radiating panel group 20 having the above-described configuration is used for air conditioning for each floor in a multi-layer floor (or air conditioning for a plurality of areas on the same floor).

  The radiant panel group 20 on each floor (or each region) circulates a cold heat source 21 that circulates and supplies cold water as a low-temperature heat medium cooled by ground water or a cooling tower, and hot water as a high-temperature heat medium heated by a boiler or a heater. It is connected in parallel to the supplied heat source 22.

  In each radiating panel group 20, the inflow port 3 i and the outflow port 3 e of one of the two different flow paths 3 and 4 are connected to the cold water supply flow path via the cold water valves 23 and 24. 21f and the cold water return channel 21r are connected. The inflow port 4i and the outflow port 4e of the other flow path 4 are connected to the hot water supply flow path 22f and the hot water return flow path 22r via hot water valves 25 and 26, respectively. Further, the inflow ports 3i, 4i and the outflow ports 3e, 4e of both the flow paths 3, 4 are connected to each other via the bypass flow paths 27, 28 and the bypass valves 29, 30, respectively.

  According to the above configuration, by controlling the valves 23, 24, 25, 26, 29, and 30, the radiating panel group 20 on each floor (or each region) can be cooled by the low load cooling shown by (a) in the figure. Operation mode, high-load cooling operation mode indicated by (b), low-load heating operation mode indicated by (c), high-load heating operation mode indicated by (d), and cooling / heating continuous operation indicated by (e) It is possible to operate individually in the mode.

  In FIG. 6, the flow path through which the cold water flows is indicated by a thick solid line, the flow path through which the hot water flows is indicated by a thick dotted line, and the flow path portion where the heat medium does not flow is indicated by a thin dotted line. In addition, the opened valve is shown in white, and the closed valve is shown in solid.

  In the low load cooling operation mode (a), the chilled water valves 23 and 24 for chilled water supply and chilled water return are opened and the other valves 25, 26, 29 and 30 are closed, so that Only the cold water is supplied and flowed, and the flow of the heat medium in the other flow path 4 is stopped.

  In the high load cooling operation mode (b), the chilled water valves 23 and 24 for chilled water supply and chilled water return, and the bypass valves 29 and 30 for bypass are opened, and hot water for supplying hot water and returning hot water. By closing the valves 25, 26, cold water is supplied and flowed to each of the two flow paths 3, 4, and cold water can be supplied and flowed up to twice as much as the single flow path 3. The cooling operation is performed.

  In the low load heating operation mode (c), the warm water supply and return warm water valves 25 and 26 are opened, and the other valves 23, 24, 29, and 30 are closed, so that Only hot water is supplied and flowed, and the flow of the heat medium in the other flow path 3 is stopped.

  In the high load heating operation mode (d), the hot water supply and return warm water valves 25 and 26 and the bypass bypass valves 29 and 30 are opened, and the cold water supply and cold water return cold water is opened. By closing the valves 23, 24, hot water is supplied and flowed to each of the two flow paths 3, 4, and hot water can be supplied and flowed up to twice as much as the single flow path 4. The heating operation is performed.

  In the cooling / heating continuous operation mode (e), from the cooling temperature in the low load cooling operation mode in which the cooling valves 23 and 24 for supplying cold water and returning the cooling water are opened and the other valves 25, 26, 29 and 30 are closed. It is possible to adjust the temperature steplessly to the heating temperature in the low load heating operation mode in which the hot water supply valves 25 and 26 for supplying hot water and returning the hot water are opened and the other valves 23, 24, 29 and 30 are closed.

(Other embodiments)
The present invention can also be implemented in the following forms.

  (1) In the above embodiment, the case where the panel main body 2 is configured to have a two-pass specification including the two flow paths 3 and 4 is illustrated, but three paths including three or four flow paths are illustrated. Alternatively, it can also be implemented with a 4-pass specification. According to this, it is possible to flow the heat medium in more various forms by switching the flow path, and it is possible to perform air conditioning operation corresponding to a wider range of heat loads. it can.

  Furthermore, you may vary the cross-sectional area of each flow path.

  Further, the channel length of the panel main body 2 of at least one of the plurality of different channels may be different from the channel lengths of the other channels. For example, in FIG. 1, the pipe of one of the heat transfer pipes 5 in the panel body 2 is made by varying the number of turns of the meandering heat transfer pipes 5 and 6 constituting the two flow paths 3 and 4, respectively. The length is made longer than the pipe length of the other heat transfer pipe 6, for example, cold water is supplied to one heat transfer pipe 5 and hot water is supplied to the other heat transfer pipe 6. You may make it raise compared with ability.

  Thus, it becomes possible to cope with different air conditioning loads by varying the flow path length for each panel body 2, that is, for each radiation panel 1.

  As a result, it is possible to cope with an air conditioning load that cannot be dealt with only by the number of installed radiating panels 1 by changing the capability of the radiating panel 1 itself.

  (2) In the above embodiment, the heat transfer pipes 5 and 6 are inserted into the groove 9 of the panel body 2 to form the flow passages 3 and 4 for flowing the heat medium. Heat is transferred from the heat transfer pipes 5 and 6 to the panel body 2 in contact with the groove 9, but the heat transfer pipes 5 and 6 are fitted into the semicircular groove 9 as shown in FIG. Then, the sheath member 32 made of an aluminum material provided with the groove portion 31 having a semicircular cross-sectional shape is covered with the heat transfer pipes 5 and 6 and brought into surface contact with the panel body 2, so that Heat transfer to the panel body 2 can be efficiently performed using the circumference.

  (3) In the said embodiment, the panel base material 7 is extrusion-molded, and the engagement rib 10 is formed in the base material full length in the back surface side of the panel base material 7, and the panel base material 7 is the longitudinal direction of it. Although it is engaged and connected to the crosspiece member 8 on the back side of the substrate at an arbitrary position, it is configured as an interior material (spandrel) that does not show the connection location from the outer surface of the panel, but the appearance of the outer surface of the panel does not matter. When used under conditions, the panel base material 7 is pressed into an aluminum plate and formed into a corrugated plate shape, and this panel base material 7 is connected to the crosspiece member 8 by screwing from the outer surface side. It can also be.

  (4) In the said embodiment, although the panel base material 7 was corrugated shape, it may be not only corrugated shape but another shape, for example, it is a heat-transfer pipe on one surface on a flat plate. It may be a shape having a semicircular pipe receiving portion into which the fin is inserted and having a fin on the other surface.

DESCRIPTION OF SYMBOLS 1 Radiation panel 2 Panel body 3 Flow path 3i Inflow port 3e Outflow port 4 Flow path 4i Inflow port 4e Outflow port 5 Heat transfer pipe 6 Heat transfer pipe 7 Panel base material 8 Crosspiece member 9 Groove part 10 Engagement part of panel base material ( Engagement rib)
11 engaging member (engaging recess) of crosspiece member
20 Radiant panel group 21 Cold heat source (low heat source)
21f Supply path for low-temperature heat medium 21r Return path for low-temperature heat medium 22 Heat source (high heat source)
22f Supply path for high-temperature heat medium 22r Return path for high-temperature heat medium 23 Chilled water valve 24 Chilled water valve 25 Hot water valve 26 Hot water valve 27 Bypass path 28 Bypass path 29 Bypass valve 30 Bypass valve

Claims (8)

The panel body has a plurality of different flow paths through which the heat medium flows,
A radiant panel characterized by that. The plurality of different flow paths are arranged in the panel body such that adjacent flow paths are different.
The radiation panel according to claim 1. At least one of the plurality of different channels has a channel length in the panel body different from the channel lengths of the other channels.
The radiation panel according to claim 1 or 2. In the groove formed in the panel body, a heat transfer pipe for heat medium flow is inserted to form the flow path.
The radiant panel according to any one of claims 1 to 3. The groove is formed in a substantially semicircular shape whose opening width is slightly smaller than the outer diameter of the heat transfer pipe, and the heat transfer pipe is press-fitted into the groove.
The radiant panel according to claim 4. 6. A plurality of radiating panels according to claim 1, wherein a plurality of different flow paths of each radiating panel are connected in series to a plurality of different flow paths of adjacent radiating panels. Connected to the radiating panel group,
The plurality of flow paths communicating in series with the radiant panel group can be selectively connected to a low heat source that supplies a low-temperature heat medium and a high heat source that supplies a high-temperature heat medium, respectively.
Radiant air conditioning system characterized by that. A plurality of the radiating panel groups are provided,
The plurality of channels of each radiation panel group can be selectively connected to the low heat source and the high heat source, respectively.
The radiant air-conditioning system according to claim 6. The inflow port of one of the two channels of the radiating panel group is connected to the supply channel of the low-temperature heat medium via a valve, and the outflow port of one of the channels is connected to the low-temperature heat medium Connected through a valve to the return channel of
The inflow port of the other channel in the two channels is connected to the supply channel of the high temperature heat medium via a valve, and the outflow port of the other channel is connected to the return channel of the high temperature heat medium. Connected through a valve to
The inflow ports in the two flow paths are connected by a bypass flow path having a valve, and the outflow ports in the two flow paths are connected by a bypass flow path having a valve,
The radiation air-conditioning system according to claim 6 or 7.

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