JP7045911B2 - Air conditioning system - Google Patents

Description

The present invention relates to an air conditioning system including a compression heat pump device and an absorption heat pump device.

An air conditioning system as described above includes an engine that drives the compressor of a compression heat pump device, and the absorption heat pump device is configured to drive the waste heat of the engine as a heat source for the regenerator (eg,). See Patent Documents 1 and 2). In this way, energy saving is achieved by driving the absorption heat pump device by utilizing the waste heat of the engine for driving the compressor of the compression heat pump device.

In the system described in Patent Documents 1 and 2, cold heat can be acquired by a compression type heat pump device, and the cold heat is used in an indoor heat exchanger to perform air conditioning such as indoor cooling. There is. Since cold heat can be acquired not only in the compression type heat pump device but also in the absorption type heat pump device, the system described in Patent Document 2 includes an indoor heat exchanger different from the indoor heat exchanger of the compression type heat pump device and absorbs the heat. By using the cold heat obtained by the heat pump device in another indoor heat exchanger, it is possible to perform air conditioning using another indoor heat exchanger.

Japanese Unexamined Patent Publication No. 60-232466 Japanese Unexamined Patent Publication No. 11-014185

However, the system described in Patent Document 2 does not describe what kind of air conditioning is performed by another indoor heat exchanger, and how to utilize the cold heat obtained by the absorption heat pump device. do not know. Since this air conditioning system is required to improve energy saving, it is desired to further improve energy saving by effectively using the cold heat obtained by the absorption heat pump device.

In view of this situation, a main problem of the present invention is to provide an air conditioning system capable of further improving energy saving by effectively utilizing the cold heat obtained by the absorption heat pump device.

The first characteristic configuration of the present invention is a compression type heat pump device in which a compressor is driven by an engine.
An absorption heat pump device that drives the waste heat of the engine as a heat source for the regenerator,
An indoor unit that air-conditions the room using the cold heat obtained by the compression heat pump device.
An external air conditioner that air-conditions the outside air using the cold heat obtained by the absorption heat pump device is provided .
In air-conditioning the room, the indoor heat exchanger of the indoor unit was subjected to latent heat treatment using the cold heat obtained by the compression heat pump device, and the external air conditioner was obtained by the absorption heat pump device. In addition to the cold heat, the latent heat treatment is performed using the hot heat obtained by the compression heat pump device .

According to this configuration, when the compressor is driven by the engine in order to perform air conditioning in the indoor unit, waste heat is generated from the engine. At this time, even if the indoor load (hereinafter referred to as indoor load), which is the space to be air-conditioned, is small, the amount of exhaust heat of the engine is large. Therefore, since the absorption heat pump device can be driven while using a large amount of exhaust heat as a heat source of the regenerator, the amount of cold heat obtained by the absorption heat pump device can be increased. As a result, the external air conditioner can perform air conditioning by air-conditioning the outside air using a large amount of cold heat.

In the air conditioning treatment of the external air conditioner, for example, it is required to perform latent heat treatment of the outside air and secure a certain amount or more of the outside air introduction amount for ventilation of the room (air conditioning target space). Therefore, when air conditioning is performed by the external air conditioner, the load on the outside air is relatively large. Therefore, according to this configuration, the absorption heat pump device is driven by using a large exhaust heat amount of the engine to increase the cold heat amount obtained by the absorption heat pump device. Therefore, the external air conditioner uses a large cold heat amount. The outside air can be air-conditioned, and a relatively large outside air load can be appropriately covered. Further, regarding the indoor load, the indoor load can be covered by the air conditioning in the indoor unit.

In this way, the cold heat obtained by the absorption heat pump device can be effectively used to cover the relatively heavy outside air load while the indoor load is covered by the air conditioning in the indoor unit of the compression heat pump device. It is possible to further improve energy saving.

Further, according to this configuration, the external air conditioner can perform air conditioning treatment of the outside air by using not only the cold heat obtained by the absorption heat pump device but also the hot heat obtained by the compression heat pump device, so that further energy saving can be achieved. It is possible to improve the sex.

The second characteristic configuration of the present invention is that the external air conditioner is a dehumidifying unit that adsorbs the moisture of the outside air supplied to the room through the air supply passage and releases the moisture to the air exhausted to the outside through the exhaust passage. Using the cooling heat obtained by the absorption heat pump device, a cooling unit that cools the outside air supplied to the room through the air supply passage, and the hot heat obtained by the compression heat pump device are used. The exhaust passage is provided with a heating unit for heating the air before being supplied to the dehumidifying unit.

According to this configuration, the external air conditioner can dehumidify the outside air at the dehumidifying section while cooling the outside air at the cooling section, so that the outside air can be efficiently dehumidified while the room (air conditioning target). The space) can be dehumidified appropriately. Moreover, the cooling section cools the outside air using the cold heat obtained by the absorption heat pump device, and the heating section uses the hot heat obtained by the compression heat pump device to dehumidify the exhaust passage. Since the air before being supplied to the air is heated, it is possible not only to cool the outside air but also to regenerate the dehumidifying part (for example, a desiccant rotor) while further improving the energy saving property.

The third characteristic configuration of the present invention is that the external conditioner uses a cooling dehumidifying unit that cools and dehumidifies the outside air by using the cold heat obtained by the absorption heat pump device, and the hot heat obtained by the compression heat pump device. The cooling and dehumidifying section is provided with a reheating section for reheating the cooled and dehumidified outside air.

According to this configuration, the external air conditioner can reheat the cooled and dehumidified outside air at the reheating section while cooling and dehumidifying the outside air at the cooling / dehumidifying section, so that the temperature of the room (air conditioning target space) can be reheated. It is possible to appropriately dehumidify the room (air-conditioned space) so that the humidity becomes the target state. Moreover, the cooling dehumidifying section cools and dehumidifies the outside air using the cold heat obtained by the absorption heat pump device, and the reheating section reheats the outside air using the hot heat obtained by the compression heat pump device. Therefore, it is possible to cool, dehumidify, and reheat the outside air while further improving energy saving.

The figure which shows the schematic structure of the air conditioning system. The figure which shows the schematic structure of the air conditioning system. The figure which shows the schematic structure of the air conditioning system.

An embodiment of the air conditioning system according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the air conditioning system 1 includes a compression heat pump device 2 and an absorption heat pump device 3. The compression type heat pump device 2 uses the shaft output of the engine 4 as a power source of the compressor 24, and is configured to drive the compressor 24 by the engine 4. The absorption heat pump device 3 uses the exhaust heat of the engine 4 as a heat source of the regenerator 34, and is configured so that the exhaust heat of the engine 4 is regenerated in the regenerator 34. Further, although not shown, the air conditioning system 1 is provided with an operation control unit that controls the operation of the compression heat pump device 2 and the absorption heat pump device 3 to control the operation of the air conditioning system 1.

The compression type heat pump device 2 includes a compressor 24, an outdoor heat exchanger 25, an expansion valve 26, an indoor heat exchanger 27, and a refrigerant circuit 23 connecting these devices. The shaft output of the engine 4 is transmitted to the compressor 24, and the compressor 24 is configured to compress the refrigerant by the shaft output of the engine 4. The outdoor unit 21 is provided with a compressor 24 and an outdoor heat exchanger 25, and the indoor unit 22 for air-conditioning the room (air conditioning target space) is provided with an expansion valve 26 and an indoor heat exchanger 27. Although FIG. 1 shows an example in which one indoor unit 22 is provided, for example, a plurality of indoor units 22 may be provided in parallel.

In the compression type heat pump device 2, by driving the compressor 24, the refrigerant is allowed to flow through the refrigerant circuit 23, the outdoor heat exchanger 25 acts as a condenser, and the indoor heat exchanger 27 acts as an evaporator. It is configured as follows. Since the indoor heat exchanger 27 acts as an evaporator, cold heat can be acquired by the indoor heat exchanger 27. Therefore, although not shown, an air circulation unit for circulating air between the indoor heat exchanger 27 and the room (space subject to air conditioning) is provided. As a result, in the indoor unit 22, the indoor air is cooled (air-conditioned) by the indoor heat exchanger 27, the cooled air is supplied to the room, and the indoor (air-conditioned space) is cooled (air-conditioned). I am doing it.

By the way, in the refrigerant circuit 23 of the compression type heat pump device 2, the outdoor heat exchanger 25 acts as an evaporator in the refrigerant circuit 23 by switching the flow state of the refrigerant by a four-way valve or the like (not shown), and the indoor heat is generated. Refrigerant can be passed so that the exchanger 27 acts as a condenser. In this case, the indoor air can be heated (air-conditioned) by the indoor heat exchanger 27, and the heated air can be supplied to the room to heat (air-condition) the indoor (air-conditioned space). ..

The engine 4 is provided with a cooling water circulation circuit 41 that circulates the cooling water of the engine 4. The cooling water circulation circuit 41 includes a first exhaust heat exchanger 42, a radiator 43, and a cooling water circulation pump 44. The cooling water circulation circuit 41 is configured such that the cooling water having the exhaust heat of the engine 4 passes through the first exhaust heat exchanger 42 and the radiator 43 in this order, and then returns to the engine 4. As a result, the cooling water has the exhaust heat of the engine 4, and the heat medium is heated by the cooling water in the first exhaust heat exchanger 42, and the exhaust heat of the engine 4 is transferred to the heat medium. There is.

Although not shown, the cooling water circulation circuit 41 may include an exhaust gas heat exchanger that exchanges heat between the exhaust gas from the engine 4 and the cooling water before flowing through the first exhaust heat exchanger 42. In this case, as the cooling water passes through the exhaust gas heat exchanger, in addition to the exhaust heat of the cooling water, the exhaust heat of the exhaust gas of the engine 4 is also transferred to the heat medium in the first exhaust heat exchanger 42. Can be heated.

The air conditioning system 1 is provided with an exhaust heat recovery circuit 45 that circulates a heat medium between the first exhaust heat exchanger 42 and the second exhaust heat exchanger 46 to recover the exhaust heat of the engine 4. ing. The second waste heat exchanger 46 is configured to exchange heat between the heat medium and the absorbing liquid being supplied from the absorber 33 to the regenerator 34. The waste heat recovery circuit 45 includes a first waste heat exchanger 42, a second waste heat exchanger 46, and a waste heat recovery pump 47. In the exhaust heat recovery circuit 45, the heat medium is heated by the cooling water in the first exhaust heat exchanger 42 to recover the exhaust heat of the engine 4, and the absorbed liquid is absorbed by the heat medium in the second exhaust heat exchanger 46. Is heated, and the absorbed liquid being supplied from the absorber 33 to the regenerator 34 is heated by the exhaust heat of the recovered engine 4.

The absorption heat pump device 3 includes a condenser 31, an evaporator 32, an absorber 33, and a regenerator 34, and excretes the exhaust heat of the engine 4 by heat exchange in the second exhaust heat exchanger 46 of the regenerator 34. It is used as a heat source. The absorber 33 and the regenerator 34 are communicated and connected through the first communication passage 51 and the second communication passage 52, and the regenerator 34 and the condenser 31 are communicated and connected by the third communication passage 53. The condenser 31 and the evaporator 32 are communicated and connected in the fourth communication passage 54, and the evaporator 32 and the absorber 33 are communicated and connected in the fifth communication passage 55.

The absorber 33 is configured to absorb water vapor (refrigerant) supplied from the evaporator 32 through the fifth passage 55 by the absorbing liquid. The absorbing liquid that has absorbed the evaporated refrigerant (water vapor) in the absorber 33 is supplied to the regenerator 34 through the first continuous passage 51. The first communication passage 51 is provided with an absorbent liquid supply pump 56 and a second waste heat exchanger 46. Incidentally, although not shown, a liquid heat exchanger can be provided for heat exchange between the absorbing liquid flowing through the first continuous passage 51 and the absorbing liquid flowing through the second continuous passage 52. This liquid heat exchanger has an absorbent liquid before being supplied from the absorber 33 to the second exhaust heat exchanger 46 through the first continuous passage 51, and from the regenerator 34 to the absorber 33 through the second continuous passage 52. It can be configured to exchange heat with the absorbing liquid on the way back.

Since the regenerator 34 is supplied with the absorbing liquid heated by the heat medium in the second exhaust heat exchanger 46, the refrigerant is evaporated from the absorbing liquid and the water vapor (refrigerant) is separated from the absorbing liquid. It is configured to play. The separated water vapor (refrigerant) is supplied to the condenser 31 through the third passage 53, and the absorbing liquid from which the water vapor (refrigerant) is separated is returned to the absorber 33 through the second passage 52. The regenerator 34 is provided with a heating unit 35 to which a heating fluid such as a combustion gas of a burner is supplied, and in addition to the second waste heat exchanger 46, the heating unit 35 can heat the absorbing liquid. There is. As a result, if the amount of heat for regenerating the absorbed liquid is insufficient only by heating by the second waste heat exchanger 46, the shortage can be compensated by adding heating by the heating unit 35. , Reproduction with the regenerator 34 can be appropriately performed.

The condenser 31 is provided with a cooling unit 36 in which cooling water is circulated and supplied from a cooling tower or the like, and is configured to cool and condense water vapor (refrigerant) supplied through the third connecting passage 53 by the cooling unit 36. Has been done. The water (refrigerant) condensed in the condenser 31 is supplied to the evaporator 32 through the fourth continuous passage 54.

The evaporator 32 is provided with a heat transfer unit 37 to which a heat medium is circulated and supplied, and is configured to supply water (refrigerant) supplied through the fourth communication passage 54 to the heat transfer unit 37 to evaporate. .. The evaporated water vapor (refrigerant) is supplied to the absorber 33 through the fifth continuous passage 55.

The air conditioning system 1 is provided with a cold heat extraction circuit 38 that circulates a heat medium between the heat transfer unit 37 and the external air conditioner 60 and takes out the cold heat obtained by the absorption heat pump device 3. The cold / heat take-out circuit 38 is provided with a cold / heat take-out pump 39. Since the heat medium is cooled in the heat transfer unit 37, the heat medium cooled by the cold heat extraction circuit 38 is supplied to the external controller 60. The external conditioner 60 air-conditions the outside air using the cold heat of the heat medium supplied by the cold heat extraction circuit 38, and supplies the outside air after the air-conditioning treatment to the room (air-conditioned space) for air conditioning. It is configured in. As the air conditioning by the external air conditioner 60, for example, latent heat treatment such as dehumidification of the outside air is performed, and the outside air after the latent heat treatment is supplied to the room. Therefore, when air-conditioning the room, the latent heat can be performed by the indoor heat exchanger 27 of the indoor unit 22, and the latent heat can be performed by the external air conditioner 60, so that the latent heat and the sensible heat are separated. It is possible to perform appropriate air conditioning to set the temperature and humidity in the room to a desired state while processing efficiently.

The air conditioning system 1 cools the indoor air (explicit heat treatment) by the indoor heat exchanger 27 of the indoor unit 22 by using the cooling heat obtained by the compression type heat pump device 2 driven by the engine 4. Etc. can be air-conditioned. The air conditioning system 1 recovers the waste heat of the engine 4 by the waste heat recovery circuit 45, and heats the absorbing liquid supplied to the regenerator 34 by the waste heat recovered by the second waste heat exchanger 46. The absorption type heat pump device 3 is driven by using the waste heat of the engine 4 as a heat source of the regenerator 34. Therefore, the exhaust heat of the engine 4 can be effectively utilized to drive the absorption heat pump device 3, and energy saving can be achieved. The external air conditioner 60 can perform air conditioning by using the cold heat obtained by the absorption heat pump device 3 for air conditioning such as dehumidification, and supplying the air after the air conditioning treatment to the room for air conditioning.

In the compression type heat pump device 2, by driving the engine 4, a certain amount of waste heat is generated from the engine 4, so that the amount of waste heat from the engine 4 is large even if the indoor load is small. As a result, the absorption heat pump device 3 can be driven using a large amount of exhaust heat, so that the amount of cold heat obtained by the absorption heat pump device 3 can be increased. Therefore, the external air conditioner 60 can perform air conditioning by air-conditioning the outside air using a large amount of cold heat.

In the indoor unit 22 of the compression type heat pump device 2, air conditioning is performed by performing a microheat treatment in the room. In the air conditioning by the indoor unit 22, the magnitude of the indoor load changes depending on the number of people existing in the room, the amount of heat generated from the equipment, and the like. On the other hand, in the external air conditioner 60, indoor air conditioning is performed by performing latent heat treatment such as dehumidification of the outside air. In the air conditioning by the external air conditioner 60, although the magnitude of the outside air load changes depending on the outside air temperature and humidity, the latent air heat treatment is performed, so that the outside air load becomes large to some extent. Further, for indoor ventilation, it is required to secure a certain amount or more as the amount of outside air introduced, and from this point as well, the load on the outside air is large. Therefore, the outside air load is always relatively large.

Therefore, as described above, in the air conditioning system 1, the absorption heat pump device 3 is driven by using the large exhaust heat amount of the engine 4, and the cold heat amount obtained by the absorption heat pump device 3 is increased. As a result, the external air conditioner 60 can air-condition the outside air using a large amount of cold heat, and even when the outside air load is large, the outside air load can be appropriately covered. Further, regarding the indoor load, the compression type heat pump device 2 controls the rotation speed of the engine 4 according to the magnitude of the indoor load, and the indoor load is caused by the air conditioning in the indoor unit 22 of the compression type heat pump device 2. Can be covered. In this way, the cold heat obtained by the absorption heat pump device 3 driven by the exhaust heat of the engine 4 as a heat source while being able to appropriately cover the indoor load is used to cover the outside air load, which is a relatively large load. It can be used, and further improvement of energy saving can be achieved. Further, for example, when the number of people present in the room is small or the amount of heat generated from the device is small, it is possible to reduce the indoor load by appropriately covering a relatively large outside air load. It is possible to reduce the energy consumption to cover the indoor load by that amount, which is also useful in terms of energy efficiency.

The external conditioner 60 is configured to air-condition the outside air using the cold heat of the heat medium supplied by the cold heat extraction circuit 38, and supply the outside air after the air-conditioning treatment to the air-conditioned space (indoor). There is. Therefore, the configuration of the external regulator 60 will be described below with respect to the two configurations of FIGS. 2 and 3.

First, the configuration of the external regulator 60 shown in FIG. 2 will be described.
As shown in FIG. 2, the external air conditioner 60 includes a supply air passage 61, an exhaust passage 62, and a desiccant rotor 63 (corresponding to a dehumidifying section) so as to ventilate and dehumidify the air-conditioned space. It is configured. Although not shown, the external air conditioner 60 has an air supply fan for supplying outdoor air to the room (air conditioning target space) through the air supply passage 61, and an indoor (air conditioning target space) through the exhaust passage 62. It is equipped with an exhaust fan and the like for exhausting the air from the room to the outside.

The air supply passage 61 is composed of a flow path for supplying the outdoor air to the room, and the exhaust passage 62 is composed of a flow path for exhausting the indoor air to the outside. The supply air passage 61 and the exhaust passage 62 are provided adjacent to each other, and the desiccant rotor 63 is rotationally driven by a drive unit (not shown) so as to alternately pass through the supply air passage 61 and the exhaust passage 62. Have been placed. The desiccant rotor 63 is provided with, for example, a polymer adsorbent, an adsorbent such as zeolite or silica gel, adsorbs the moisture of the outside air in the air supply passage 61, and releases the moisture to the air exhausted in the exhaust passage 62. It is configured to do.

The supply air passage 61 is provided with a first heat exchange unit 64 and a second heat exchange unit 65 (corresponding to a cooling unit) for cooling the outside air supplied to the room through the supply air passage 61. The first heat exchange unit 64 and the second heat exchange unit 65 are configured to receive the supply of a heat medium having cold heat in the cold heat extraction circuit 38 and cool the outside air supplied to the room by the heat medium. ing. The first heat exchange unit 64 is arranged upstream of the desiccant rotor 63 in the air supply passage 61 in the flow direction of the outside air, and the second heat exchange unit 65 is arranged in the air supply path 61 in the flow direction of the outside air. It is located downstream of the desiccant rotor 63. In the first heat exchange unit 64, the outside air before being supplied to the desiccant rotor 63 can be pre-cooled, and the dehumidification of the desiccant rotor 63 can be appropriately performed. In the second heat exchange unit 65, by cooling the outside air after dehumidification, it is possible to remove the portion whose temperature has risen due to the heat of adsorption due to the dehumidification by the desiccant rotor 63, and the outside air in a desired temperature and humidity state can be introduced into the room. Can be supplied. In this way, the external conditioner 60 can perform latent heat treatment such as dehumidification of the outside air by using the cold heat obtained by the absorption heat pump device 3, and can dehumidify the room.

The first heat exchange unit 64 and the second heat exchange unit 65 are provided in parallel in the cold heat extraction circuit 38, but for example, the first heat exchange unit 64 and the second heat exchange unit 65 are in series in this order. You can also prepare. Further, although an example including both the first heat exchange unit 64 and the second heat exchange unit 65 is shown, for example, only the first heat exchange unit 64 or only the second heat exchange unit 65 may be provided. ..

The exhaust passage 62 is provided with a third heat exchange section 66 (corresponding to a heating section) that heats the air before being supplied to the desiccant rotor 63. The third heat exchange unit 66 is configured to receive a heat medium having heat in the heat extraction circuit 28 and heat the air before being supplied to the desiccant rotor 63 by the heat medium. Therefore, the air before being supplied to the desiccant rotor 63 can be heated to appropriately regenerate the desiccant rotor 63.

The air conditioning system 1 is provided with a heat extraction circuit 28 that circulates a heat medium between the fourth heat exchange unit 67 and the third heat exchange unit 66 and takes out the heat obtained by the compression heat pump device 2. The heat extraction circuit 28 is provided with a heat extraction pump 29 in addition to the fourth heat exchange unit 67 and the third heat exchange unit 66. The fourth heat exchange unit 67 is arranged between the outdoor heat exchanger 25 and the expansion valve 26 in the refrigerant circuit 23 of the compression heat pump device 2. The fourth heat exchange unit 67 is configured to act as a condenser that condenses the refrigerant by heating the heat medium of the thermal heat extraction circuit 28 with the refrigerant by allowing the refrigerant of the refrigerant circuit 23 to flow through. ..

In this way, the heat extraction circuit 28 can take out the heat obtained by the compression heat pump device 2 by the heat exchange of the fourth heat exchange unit 67, and the heat taken out by the heat exchange of the third heat exchange unit 66. The air before being supplied to the desiccant rotor 63 can be heated to regenerate the desiccant rotor 63. Therefore, the external conditioner 60 not only dehumidifies the outside air by using the cold heat obtained by the absorption heat pump device 3, but also regenerates the desiccant rotor 63 by using the heat obtained by the compression heat pump device 2. I try to do.

Next, the configuration of the external regulator 60 shown in FIG. 3 will be described.
The parts common to FIG. 2 will be described by the same reference numerals, and the description thereof will be omitted.
As shown in FIG. 3, the external conditioner 60 has a cooling dehumidifying section 68 that cools and dehumidifies the outside air by exchanging heat between the supplied heat medium and the outside air, and an outside air that has been cooled and dehumidified by the cooling dehumidifying section 68. It is provided with a reheating unit 69 capable of reheating, and a fan 70 for introducing outside air to pass through the cooling / dehumidifying unit 68 and the reheating unit 69 and supplying the outside air after passing to the air conditioning target space. ..

The external conditioner 60 cools and dehumidifies the outside air in the cooling dehumidifying section 68, and when the temperature of the outside air after the cooling dehumidification deviates from the target state, the cooling and dehumidifying outside air is reheated in the reheating section 69. I have to. As a result, it is possible to appropriately dehumidify the room (air conditioning target space) so that the temperature and humidity in the room (air conditioning target space) become the target state.

The cooling / dehumidifying unit 68 is configured to receive a heat medium having cold heat from the cold / heat extraction circuit 38 and cool / dehumidify the outside air with the heat medium. The reheating unit 69 is configured to receive a heat medium having heat in the heat extraction circuit 28 and reheat the outside air after being cooled and dehumidified by the heat medium. In this way, the external conditioner 60 not only cools and dehumidifies the outside air by using the cold heat obtained by the absorption heat pump device 3, but also cools by using the hot heat obtained by the compression heat pump device 2. The dehumidified outside air can be reheated to further improve energy saving.

[Another Embodiment]
Other embodiments of the present invention will be described. It should be noted that the configurations of the respective embodiments described below are not limited to being applied independently, but can also be applied in combination with the configurations of other embodiments.

(1) In the above embodiment, the configuration shown in FIGS. 2 and 3 is illustrated as the external air conditioner 60, but the air conditioning processing unit that air-conditions the outside air by using the cold heat obtained by the absorption heat pump device 3 is provided. Any configuration can be applied as long as it has.

For example, the external air conditioner 60 includes an outside air cooling unit that cools the outside air by using the cooling heat obtained by the absorption heat pump device 3, and the outside air cooling unit supplies the cooled outside air to the room to cool the outside air. The cooling used can be performed.

(2) In the above embodiment, FIGS. 1 to 3 are exemplified as the configuration of the absorption heat pump device 3, but the configuration is not limited to this, and other configurations may be applied.

1 Air conditioning system 2 Compression heat pump device 3 Absorption heat pump device 4 Engine 22 Indoor unit 24 Compressor 34 Regenerator 60 External conditioner 63 Desiccant rotor (dehumidifying section)
64 First heat exchange section (cooling section)
65 Second heat exchange section (cooling section)
66 Third heat exchange section (heating section)
68 Cooling and dehumidifying part 69 Reheating part

Claims (3)

A compression heat pump device in which a compressor is driven by an engine,
An absorption heat pump device that drives the waste heat of the engine as a heat source for the regenerator,
An indoor unit that air-conditions the room using the cold heat obtained by the compression heat pump device.
An external air conditioner that air-conditions the outside air using the cold heat obtained by the absorption heat pump device is provided .
In air-conditioning the room, the indoor heat exchanger of the indoor unit was subjected to latent heat treatment using the cold heat obtained by the compression heat pump device, and the external conditioner was obtained by the absorption heat pump device. An air conditioning system that performs latent heat treatment using the heat obtained by the compression heat pump device in addition to cold heat . The external air conditioner is obtained by a dehumidifying unit that adsorbs moisture of the outside air supplied to the room through the air supply passage and discharges the moisture to the air exhausted to the outside of the room through the exhaust passage, and the absorption type heat pump device. A cooling unit that cools the outside air supplied to the room in the air supply passage using the generated cold heat, and a dehumidifying unit in the exhaust passage using the heat obtained by the compression heat pump device. The air conditioning system according to claim 1 , further comprising a heating unit that heats the air before being supplied. The external air conditioner is cooled and dehumidified by a cooling dehumidifying section that cools and dehumidifies the outside air using the cold heat obtained by the absorption heat pump device and a cooling dehumidifying section using the hot heat obtained by the compression heat pump device. The air conditioning system according to claim 1 , further comprising a reheating unit for reheating the outside air.

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