JP2003322367A - Air-conditioning system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air-conditioning system preventing temperature changes from a heat source from propagating to indoor temperature. <P>SOLUTION: A heat exchanger 14 is filled with a latent heat storage material M and laminated with a heat storage panel layer 19 accommodating part of a secondary conduit 56 and a cooling panel layer 15 to which primary conduits 50 and 52 are connected. Upon cooling the latent heat storage material M undergoes a phase change and is held at a constant temperature, so that changes in the temperature of the cold water fed from heat source equipment 12 will not translate into indoor temperature changes as they are absorbed by the latent heat storage material M. A control means is provided which bypasses a water tank 18 during start to increase follow-up properties during start. Further, a heat accumulator 24 accumulates the heat of air returning from a clean room 98 or the exhaust heat of a fan 22 and heats the flow of cold water in a circuit with the accumulated heat when temperature within the clean room 98 drops to or below a predetermined value, thereby quickening a reaction that causes a rise of indoor temperature. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly to an air conditioner which controls the temperature of a room of a temperature-controlled room for precise temperature control.

[0002]

2. Description of the Related Art In recent years, semiconductor wafer factories, substrate transfer film devices, and the like have tended to have higher precision as well as larger chip capacities, and their processing control range is required to have accuracy of 1 micron unit. There is. In such a factory, when the temperature around the production line changes by 1 ° C., it is estimated from the linear expansion coefficient of metal (10 μm / (m · ° C.)) that an error of nearly 10 μm will occur. That is, if processing control in micron units is required,
It is necessary to control the temperature in units of 1 ° C., and considering that the minimum interval of recent semiconductor circuits is 0.1 μm unit,
Temperature control in units of 01 ° C is required. At present, such a processing apparatus is controlled to some extent, but since it is controlled under the condition that the room temperature does not fluctuate, it is indispensable to keep the temperature inside the room. Various methods have been devised to create the conditions of a temperature-controlled room.

The most common method among them is, as shown in FIG. 7, a system in which the air conditioner 100 performs supercooling and the reheat heater 102 finely adjusts the blowout temperature according to the load in the room.

However, although such a method enables ultra-precision control, it involves a method of supercooling and then reheating, so that from the viewpoint of energy saving, there is a problem that the system becomes very wasteful. there were.

In order to solve this problem, instead of using a reheat heater, an air conditioner 200 as shown in FIGS. 8 and 9 controls the amount of cold water to be heat-exchanged, thereby changing the temperature of the cold water. There is known a system (Japanese Patent Laid-Open No. 10-281532) that adjusts the amount of time and enables ultra-precision control with only cold water. It was very useful because it consumes less energy because it does not use a reheat heater, and does not affect noise due to thyristor control for the heater.

However, this system is not compatible with the heat source device 202.
There is a problem that the temperature fluctuation component on the side propagates to the blowout temperature. Therefore, the air conditioner 300 as shown in FIG.
Thus, in order to reduce the temperature fluctuation component from the heat source device 302 side, water tanks 304 and 306 as buffers are installed in the middle of the cold water circulation circuit from the heat source device 302 side to increase the amount of water retained (JP-A-7-133992). ) Is also known.

This system was effective as a means for preventing the propagation of the temperature fluctuation component on the heat source device 302 side, but it was not perfect, and since the water tanks 304 and 306 were provided, the temperature precision at the start-up was high. There was a problem that controllability was low and it took time to stabilize at a constant temperature level. In addition, a system that controls only by cold water has a problem that it quickly reacts to the side that lowers the temperature, but the reaction to the side that raises the temperature is slow.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above facts, prevents temperature fluctuation propagation on the heat source side, stabilizes the control temperature at a constant temperature level in a short time at startup, and An object of the present invention is to provide an air conditioner capable of quickly raising the control temperature to a constant temperature level and reducing energy consumption when raising the temperature.

[0009]

An air conditioner according to a first aspect of the present invention is a heat source unit for supplying a heat exchange medium to a primary circulation passage, a heat exchange medium flowing through the primary circulation passage, and a secondary circulation passage. An air conditioner comprising: a heat exchanger for exchanging heat with a heat exchange medium flowing through the passage; and a coil for exchanging heat between the heat exchange medium flowing through the secondary side circulation passage and the air sent to the room by the air blowing means. The heat exchanger cools the heat exchange medium flowing in the primary side circulation path and exchanges heat with the latent heat storage material that changes its phase and has a constant temperature to exchange the heat exchange medium flowing in the secondary side circulation path. It is characterized by

The operation of the air conditioner according to claim 1 will be described below.

The latent heat storage material, which is cooled by the heat exchange medium flowing through the primary side circulation path and changes its phase to have a constant temperature, heat-exchanges (cools) the heat exchange medium flowing through the secondary side circulation path. In the heat exchanger, the heat exchange medium flowing through the primary side circulation path and the heat exchange medium flowing through the secondary side circulation path are heat exchanged.

That is, since the latent heat storage material is always kept in a constant temperature zone even if the temperature component of the heat exchange medium flowing through the primary side circulation path fluctuates, the heat exchange through the secondary side circulation path is performed. A constant temperature component is always transmitted to the medium.

The air sent to the room by the air blowing means and the heat exchange medium that is heat-exchanged by the heat exchanger and flows through the secondary side circulation path are heat-exchanged by the coil, but the temperature fluctuation component on the heat source side. Is absorbed by the latent heat storage material and is not propagated to the temperature inside the air-conditioned room. As a result, the constant temperature of the room is maintained.

An air conditioner according to a second aspect is the air conditioner according to the first aspect, wherein the heat exchanger radiates heat from a heat exchange medium that is formed of the latent heat storage material and flows through a secondary circulation path. It is characterized by comprising a heat storage material layer and a cooling layer which is provided in face contact with the latent heat storage layer and cools the latent heat storage layer with a heat exchange medium flowing through the primary circulation path.

The operation of the air conditioner according to claim 2 will be described below.

The latent heat storage material layer is cooled on the surface of the primary side circulation path in contact with the cooling layer through which the heat exchange medium flows, and the heat exchange medium flowing through the secondary side circulation path is radiated, whereby the heat exchanger 1
The heat exchange medium flowing through the secondary circulation passage and the heat exchange medium flowing through the secondary circulation passage are exchanged with each other. In this way, the entire surface of the latent heat storage material layer is in contact with the entire surface of the cooling layer, and heat is exchanged over the entire surface, so the efficiency of heat exchange is high.

An air conditioner according to a third aspect of the present invention is the air conditioner according to the second aspect, wherein the latent heat storage layers and the cooling layers are alternately laminated and the outside is covered with a heat insulating panel. .

The operation of the air conditioner according to claim 3 will be described below.

Since the latent heat storage material layer and the cooling layer are alternately laminated, the latent heat storage material layer is efficiently cooled from the cooling layer. Further, since the outer side is covered with the heat insulating panel, the heat stored in the latent heat storage material layer is mostly used for heat exchange and is not affected by the heat on the outer side of the heat exchanger. Therefore, the efficiency of heat exchange is high.

An air conditioner according to a fourth aspect is the air conditioner according to any one of the first to third aspects, wherein the secondary circulation path is a circulation path on the heat exchanger side and a circulation path on the coil side. And an intermediate heat exchanger for exchanging heat between the heat exchange medium flowing in the circulation path on the heat exchanger side and the heat exchange medium flowing in the circulation path on the coil side.

The operation of the air conditioner according to claim 4 will be described below.

The heat exchange medium that is heat-exchanged in the heat exchanger and flows in the circulation path on the heat exchanger side and the heat exchange medium that is heat-exchanged in the coil and flows in the circulation path on the coil side are heat-exchanged by the intermediate heat exchanger. To be done. By providing the intermediate heat exchanger, the load on the latent heat storage material provided in the heat exchanger is reduced. Moreover, the temperature component is not propagated.

An air conditioner according to a fifth aspect of the present invention is a heat source part for supplying a heat exchange medium to the primary side circulation path, a heat exchange medium flowing through the primary side circulation path and a heat exchange medium flowing through the secondary side circulation path. An air conditioner having a heat exchanger for exchanging heat between the secondary side circulation path and a coil for exchanging heat between the heat exchange medium flowing through the secondary side circulation path and the air sent to the room by the blowing means. A water tank that circulates the heat exchange medium flowing through the tank while staying, a bypass flow path that bypasses the water tank and is connected to the secondary side circulation path, and a heat exchange medium that flows into the water tank when stable and starts up. A first control means for causing a heat exchange medium to flow into the bypass flow path.

The operation of the air conditioner according to claim 5 will be described below.

When stable, the first control means circulates the heat exchange medium flowing through the secondary circulation path while retaining it in the water tank. As a result, the heat capacity of the heat exchange medium held in the secondary side circulation path increases, the temperature fluctuations of the heat exchange medium are alleviated, and the load on the latent heat storage material is reduced.

The first control means causes the heat exchange medium flowing through the secondary side circulation passage to flow into the bypass passage bypassing the water tank when quick response is required such as when starting up.
As a result, the flow rate of the heat exchange medium flowing through the secondary circulation path is reduced and the heat exchange medium is cooled in a short time, so that the air-conditioned room is stabilized at a constant temperature level in a short time.

An air conditioner according to a sixth aspect of the present invention is a heat source part for supplying a heat exchange medium to the primary side circulation path, a heat exchange medium flowing through the primary side circulation path and a heat exchange medium flowing through the secondary side circulation path. An air conditioner having a heat exchanger for exchanging heat with the heat exchanger, and a coil for exchanging heat with the heat exchange medium flowing through the secondary circulation path and the air sent to the room by the blowing means. A heat storage means for storing heat or the exhaust heat of the blower means,
Second control means for heating the heat exchange medium flowing through the secondary side circulation path by the heat stored in the heat storage means when the temperature of the room conditioned by the air cooled by the coil becomes equal to or lower than a predetermined value. It is characterized by having.

The operation of the air conditioner according to claim 6 will be described below.

The second control means, when the temperature in the room conditioned by the air cooled by the coil becomes a predetermined value or less, returns the heat exchange medium flowing through the secondary side circulation path from the room to the return air heat or the blowing means. The exhaust heat is circulated to the heat storage means for storing heat and is heated by the heat storage of the heat storage means. The heat exchange medium heated by the heat storage means raises the temperature of the air sent into the room by the air blowing means.

With this configuration, it is possible to raise the room temperature to the same extent as the response for lowering the temperature of the air-conditioned room. Further, since the return air heat or the exhaust heat of the blowing means is used, energy consumption is reduced as compared with the case of reheating with a reheat heater.

An air conditioner according to a seventh aspect is the air conditioner according to the sixth aspect, wherein the heat storage means is cooled by a heat exchange medium in place of the exhaust heat, and the air is blown by the heat storage means. It is characterized by comprising a third control means for cooling the air sent to the coil.

The operation of the air conditioner according to claim 7 will be described below.

The third control means cools the heat storage means with the heat exchange medium, and cools the air sent to the coil by the air blowing means with the heat storage of the heat storage means. Therefore, the air sent to the coil by the air blowing means is cooled by the heat storage of the heat storage means and its temperature is lowered before being cooled by the coil, so that the amount of heat exchange performed by the coil is reduced and the energy consumption is also reduced. It

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 1 and 2, the air conditioner 10 for air conditioning the clean room 98, which requires constant temperature,
A heat source device 12 that supplies cold water as a heat exchange medium is provided. One end sides of the pipe lines 50 and 52 are connected to both ends of the pipe arranged inside the heat source device 12.

The pipeline 50 and the pipeline 52 are communicated with each other through the cooling panel layer 15 which constitutes the heat exchanger 14, and the cold water is the heat source device 12, the pipeline 50, the cooling panel layer 15, and the pipeline 5.
Cycle between the two. In addition, the circulation pump 2 is provided in the pipeline 50.
6 is provided, and cold water is circulated by the circulation pump 26.

In addition, 1 which is composed of the conduit 50 and the conduit 52
A bypass pipe 54 is provided in the secondary circulation path. The pipe 52 and the bypass pipe 54 are connected to each other by the flow control valve 28.
The flow rate of the cold water flowing to the heat exchanger 14 is controlled by adjusting the opening of the flow rate control valve 28 and flowing the cold water to the bypass pipe 54.

On the other hand, in the heat exchanger 14, the heat storage panel layer 19 and the cooling panel layer 15 filled with the gel-like latent heat storage material M.
Are laminated, and the outside is covered with a heat insulating panel 17.

Although the heat insulating panel 17 in the drawing is shown only on both sides, it has a structure for covering the whole.

The cooling panel layer 15 has a rectangular tank structure, and cold water that flows in from the pipe line 50 and flows out from the pipe line 52 touches the entire wall surface of the heat storage panel layer 19 that also has a tank structure. It is like this. Also, the heat storage panel layer 1
9 includes a conduit 58 on the inflow side that constitutes the secondary side circulation path.
The outflow side conduit 56 is coiled and housed. Although the cold water that has flowed in from the pipe line 50 has flowed into the cooling panel layer 15, the pipe line 50 is not limited to this configuration, and the pipe line 50 is arranged inside the cooling panel layer 15 to form the heat storage panel layer 19. May be cooled.

As described above, the latent heat storage material M is selected such that it is cooled by the cold water flowing through the primary circulation path and undergoes a phase change. Therefore, when the cold water flowing through the primary side circulation path and the cold water flowing through the secondary side circulation path undergo heat exchange, the latent heat storage material M has a constant temperature without being affected by fluctuations in the cold water temperature on the heat source device 12 side. Since the band is maintained, the temperature fluctuation of the cold water circulating in the secondary circulation path is reduced.

That is, since the cold water flowing through the secondary circulation path radiates heat by the latent heat storage material M having a constant temperature, even if the temperature of the cold water flowing through the primary circulation path fluctuates, The fluctuation component is absorbed and is not propagated to the secondary side circulation path. Further, by selecting the material of the latent heat storage material M, it is possible to set the temperature component transmitted to the secondary side circulation path,
The heat exchange amount can be adjusted by increasing or decreasing the heat storage panel layer 19.

A circulation pump 30 is arranged in the pipe 56, and the circulation pump 30 circulates the cold water across the pipe 56, the intermediate heat exchanger 16 and the pipe 58. . Further, a bypass pipe 60 is provided on the heat exchanger 14 side of the secondary side circulation path constituted by the pipe lines 56 and 58, and a bypass pipe 62 is provided on the intermediate heat exchanger 16 side.

The bypass pipe 60 and the pipe 58 are communicated with each other through the flow control valve 32, and the bypass pipe 62 is also connected.
An on-off valve 34 is provided in the middle of the. Then, the flow control valve 32 and the opening / closing valve 34 are adjusted to adjust the bypass pipe 6
The amount of cold water flowing to the primary side of the intermediate heat exchanger 16 is controlled by causing cold water to flow to 0 and 62. Thereby, the heat exchange amount of the intermediate heat exchanger 16 is controlled.

On the other hand, on the secondary side of the intermediate heat exchanger 16, there is disposed a secondary side circulation path constituted by the pipelines 64 and 66, and from the pipeline 66 to the secondary side of the intermediate heat exchanger 16. The cold water that has flowed in to the cold water that has flowed into the primary side of the intermediate heat exchanger 16 from the pipe 56 is heat-exchanged and cooled.

Since the intermediate heat exchanger 16 is provided,
The load on the heat exchanger 14 is reduced, but the intermediate heat exchanger 1
No. 6 is not an indispensable requirement, and the heat storage panel layer 19 of the heat exchanger 14 may be increased without providing the intermediate heat exchanger 16 to increase the heat exchange amount of the heat exchanger 14.

A water tank 18 is provided in the middle of the conduit 58. The cold water that has undergone heat exchange in the intermediate heat exchanger 16 flows into the water tank 18 through the inflow-side pipe 35, and flows out from the outflow-side pipe 37 into the pipe 58 while being retained.
In this way, by providing the water tank 18, the amount of water held in the circulation path on the heat exchanger 14 side increases (the heat capacity increases), so the temperature fluctuation component of the cold water that has been heat-exchanged in the intermediate heat exchanger 16 is absorbed. The load on the heat exchanger 14 is reduced.

The conduits 35 and 37 are connected to each other by a conduit 68.
And the flow control valve 36 provided in the pipe 35.
By controlling the flow rate control valve 38 provided in the bypass pipe 68, the flow path of the cold water can be switched.

That is, since the water tank 18 is provided,
When the air conditioner 10 starts up, the clean room 98
In order to solve the problem that a long time elapses until the temperature is stabilized at a constant temperature level, the control device 90 shown in FIG. 3 opens the flow rate control valve 36 and closes the flow rate control valve 38 at the time of stabilization. When the cold water is allowed to flow into the water tank 18 and quick response such as rising is required, the flow control valve 36 is closed, the flow control valve 38 is opened, and the cold water is allowed to flow into the bypass pipe 68 to bypass the water tank 18.

Therefore, the amount of water held in the circulation passage on the side of the heat exchanger 14 decreases, so that the temperature of the cold water flowing through the circulation passage on the side of the heat exchanger 14 is quickly stabilized at the set temperature, and the room temperature of the clean room 98 is raised in a short time. It is possible to stabilize at a constant temperature level.

A part of the pipelines 64 and 66 forms the coil 20, and the pipeline 64 is provided with the circulation pump 40 on the side of the intermediate heat exchanger and the circulation pump 42 on the side of the coil 20. There is. Cold water is circulated by the circulation pumps 40 and 42.

A bypass pipe 70 is provided on the side of the intermediate heat exchanger 16 of the secondary side circulation passage constituted by the pipes 64 and 66, and a bypass pipe 72 is provided on the side of the coil 20. The bypass pipe 70 is provided with the flow control valve 44, and the pipe 64 is provided with the flow control valve 46.
Then, by adjusting the opening of the flow control valves 44 and 46 and flowing the cold water to the bypass pipes 70 and 72, the flow rate of the cold water flowing to the secondary side of the intermediate heat exchanger 16 and the coil 20 is controlled. There is. This determines the amount of heat exchange in the intermediate heat exchanger 16 and the coil 20.

The air sent to the clean room 98 by the fan 22 provided in the vicinity of the ventilation duct 21 of the clean room 98 is heat-exchanged with the cold water flowing through the coil 20 when passing through the coil 20, so that the clean room 98 is kept clean. Air condition.

Here, the pipe 66 is provided with the water tank 23. The cold water that has undergone heat exchange in the coil 20 is stored in the water tank 23.
It flows into and is circulated while being retained. By providing the water tank 23, the amount of water held in the circulation path on the coil 20 side increases, so that the temperature fluctuation component of the cold water that has undergone heat exchange in the coil 20 is absorbed.

Further, the pipe 64 is provided with a heat accumulator 24. The cold water is stored in the heat storage device 2 through the pipe 74 on the inflow side.
4 and then to the conduit 76 on the outflow side. As shown in FIG. 4, the heat storage unit 24 is blown with the return air (RA) from the clean room 98, and the heat of the RA or the exhaust heat of the fan 22 is stored by the latent heat storage material m provided in the heat storage unit 24. To do.

Here, since the latent heat storage material m is selected from materials which are heated by the exhaust heat of the RA or the fan 22 and undergo a phase change, the temperature of the RA air or the exhaust heat of the fan 22 fluctuates. However, a constant temperature range is maintained. Therefore,
The cold water flowing through the heat storage unit 24 is always heated by the latent heat storage material m having a constant temperature. Also, by selecting the material of the latent heat storage material m, it is possible to set the temperature component transmitted to the cold water flowing through the heat storage unit 24, and by increasing or decreasing the amount of the latent heat storage material m, the heat exchange amount can be adjusted. Become.

Then, by controlling the flow rate control valve 48 provided in the pipe line 74 and the flow rate control valve 50 provided in the part where the pipe line 74 and the pipe line 76 are connected by a part of the pipe line 64, The flow path of cold water can be switched.

When lowering the room temperature of the clean room 98, the flow rate control valve 48 is controlled by the controller 90 shown in FIG.
Is closed and the flow control valve 50 is opened to allow cold water to flow into the coil 20 without flowing to the heat storage device 24. On the contrary, the temperature sensor 92 detects that the room temperature of the clean room 98 has become equal to or lower than the predetermined value, and when raising the room temperature, the controller 90 opens the flow control valve 48 and closes the flow control valve 50. , Cold water from the pipe 74 on the inflow side to the heat accumulator 2
4 and is discharged from the outflow side pipe line 76 to the pipe line 64.

Then, the fan 22 cleans the room 98.
Since the air sent to the is heat-exchanged by the cold water heated in the heat storage unit 24, even when the room temperature of the clean room 98 is raised, it is possible to quickly stabilize the temperature at a constant temperature level, as in the case of lowering the room temperature. Become. Moreover, energy consumption is reduced by using the exhaust heat of the fan 22 or the heat of RA instead of the reheat heater.

Another embodiment of the heat storage unit 24 is shown in FIG.
This will be described with reference to FIG.

As shown in FIG. 5, cold water is circulated in the heat storage unit 24a, the latent heat storage material m (not shown) is cooled, and the phase of the latent heat storage material m is changed. Then, the heat storage unit 24a is provided between the fan 22 and the coil 20, and the air sent from the fan 22 to the coil 20 is stored in the heat storage unit 24a.
And the coil 20 doubly cool.

With this configuration, during the daytime, when the air having a high temperature outside air (OA) and RA is mixed is sucked by the fan 22, cooled by the heat storage unit 24a and the coil 20, and sent to the clean room 98, The temperature of the air sent to the clean room 98 becomes stable.

Further, as shown in FIG. 6, RA is sprayed on the heat storage unit 24b, cooled by the heat of RA, and undergoes a phase change so that the temperature is constant. And the heat storage device 24
b is provided between the fan 22 and the coil 20,
The air sent from 2 to the coil 20 is doubly cooled by the heat storage device 24b and the coil 20.

Outside air (OA) having a low temperature and RA at night
When the air mixed with and is sucked in by the fan 22, cooled by the air conditioner 10 and sent to the clean room 98 to cool the clean room 98, compared with the daytime,
Since the temperature of the outside air (OA) is low and there is no need to cool the latent heat storage material m with cold water, the heat of RA is used without circulating the cold water to the heat storage device 27, so that energy is reduced compared to daytime. It reduces consumption.

In the present embodiment, the air conditioner applied to the air conditioning of the clean room has been described, but the present invention is not limited to the clean room, and can be applied to the air conditioning of other rooms. Further, although the heat exchange medium is specified as cold water, other heat exchange medium can be applied.

[0066]

According to the air conditioner of the present invention, propagation of temperature fluctuations on the heat source side is prevented, the control temperature is stabilized at a constant temperature level in a short time at startup, and when the control temperature is raised, the control temperature is quickly changed to a constant temperature level. It is possible to reduce the consumption of energy while increasing the temperature.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing a piping system of an air conditioner according to the present embodiment.

FIG. 2 is a perspective view showing a heat exchanger provided with a latent heat storage material according to the present embodiment.

FIG. 3 is a block diagram of a control system that controls a flow control valve.

FIG. 4 is a schematic view of a method of storing heat of return air from a clean room with a latent heat storage material to heat cold water.

FIG. 5 is a schematic diagram of a method of storing the heat of cold water with a latent heat storage material and cooling the outside air sent by a fan.

FIG. 6 is a schematic diagram of a method of storing the heat of return air from a clean room with a latent heat storage material and cooling the outside air sent by a fan.

FIG. 7 is a schematic configuration diagram showing a piping system of an air conditioner according to a conventional example.

FIG. 8 is a schematic configuration diagram showing a piping system of an air conditioner according to a conventional example.

FIG. 9 is a schematic configuration diagram showing a piping system of an air conditioner according to a conventional example.

FIG. 10 is a schematic configuration diagram showing a piping system of an air conditioner according to a conventional example.

[Explanation of symbols]

10 Air conditioner 12 Heat source equipment (heat source section) 14 heat exchanger 15 Cooling panel layer (cooling layer) 16 Intermediate heat exchanger 17 Insulation panel 18 aquarium 19 Heat storage panel layer (latent heat storage material layer) 20 coils 22 Fan (Blower) 24 Heat storage device (heat storage means) 68 Bypass channel 90 Control device (control means) 98 clean room M latent heat storage material m Latent heat storage material

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mikio Takahashi             Chiba Prefecture Inzai City 1-5 Otsuka 1 Stock Association             Takenaka Corporation Technical Research Institute F-term (reference) 3L054 BE02 BG10 BH07                 3L060 AA06 CC02 EE41

Claims (7)

[Claims] 1. A heat source part for supplying a heat exchange medium to a primary side circulation path, and a heat exchange for exchanging heat between the heat exchange medium flowing through the primary side circulation path and the heat exchange medium flowing through the secondary side circulation path. An air conditioner having a heat exchanger for exchanging heat between the heat exchange medium flowing through the secondary circulation passage and the air sent to the room by a blower, the heat exchanger comprising: An air conditioner characterized in that a latent heat storage material, which is cooled by a flowing heat exchange medium, undergoes a phase change and has a constant temperature, exchanges heat with the heat exchange medium flowing through the secondary side circulation path. 2. The heat exchanger is provided with a latent heat storage material layer configured by the latent heat storage material for radiating a heat exchange medium flowing through a secondary side circulation path, and in contact with the latent heat storage layer. The cooling device configured to cool the latent heat storage layer with the heat exchange medium flowing through the secondary circulation path, and the air conditioner according to claim 1. 3. The air conditioner according to claim 2, wherein the latent heat storage layers and the cooling layers are alternately laminated and the outside is covered with a heat insulating panel. 4. The secondary circulation path is divided into a circulation path on the heat exchanger side and a circulation path on the coil side, and a heat exchange medium flowing through the circulation path on the heat exchanger side and the coil side. The air conditioner according to any one of claims 1 to 3, further comprising an intermediate heat exchanger that exchanges heat with a heat exchange medium flowing through the circulation path. 5. A heat source for supplying a heat exchange medium to the primary side circulation passage, and a heat exchange for exchanging heat between the heat exchange medium flowing through the primary side circulation passage and the heat exchange medium flowing through the secondary side circulation passage. An air conditioner having a heater and a coil for exchanging heat between the heat exchange medium flowing through the secondary circulation path and the air sent to the room by a blower, and the heat exchange medium flowing through the secondary circulation path is retained. A water tank that circulates while circulating, a bypass flow path that bypasses the water tank and is connected to the secondary circulation path, a heat exchange medium flows into the water tank when stable, and heat exchanges to the bypass flow path when starting up. An air conditioner comprising: a first control unit that causes a medium to flow in. 6. A heat source part for supplying a heat exchange medium to the primary side circulation path, and a heat exchange for exchanging heat between the heat exchange medium flowing through the primary side circulation path and the heat exchange medium flowing through the secondary side circulation path. An air conditioner having a heater and a coil for exchanging heat between the heat exchange medium flowing through the secondary side circulation path and the air sent to the room by the air blower, the return air heat from the room or the exhaust heat of the air blower. And a heat storage means for storing heat, and when the temperature of a room conditioned by the air cooled by the coil falls below a predetermined value, the heat stored in the heat storage means heats the heat exchange medium flowing through the secondary side circulation path. An air conditioner comprising: a second control unit. 7. A third control means for cooling the heat storage means with a heat exchange medium instead of the exhaust heat, and cooling the air sent to the coil by the blower means by the heat storage of the heat storage means. The air conditioner according to claim 6.