JP6120759B2 - Air conditioning system - Google Patents

Description

  The present invention relates to an air-conditioning system that adjusts indoor temperature and humidity by combining an adsorption humidity control device and a compression heat pump device.

2. Description of the Related Art Conventionally, an air conditioning system that mainly regulates the temperature in a room is known that includes a compression heat pump device.
The compression heat pump device is a condenser that condenses the refrigerant flowing through the high-pressure side refrigerant pipe into the high-pressure side refrigerant pipe that guides the refrigerant compressed by a refrigerant compressor that is rotationally driven by a gas engine or the like to the expansion valve. And an evaporator for evaporating the refrigerant flowing through the low-pressure side refrigerant pipe is arranged in the low-pressure side refrigerant pipe that guides the refrigerant expanded by the expansion valve to the refrigerant compressor. This compression heat pump device switches between a cooling operation and a heating operation by switching a refrigerant flow state to an outdoor unit that exchanges heat between outdoor air and refrigerant, and an indoor unit that exchanges heat between indoor air and refrigerant. Can be switched. That is, during cooling operation, the heat of the indoor air is recovered by the latent heat of vaporization of the refrigerant by switching the refrigerant flow direction so that the outdoor unit functions as a condenser and the indoor unit functions as an evaporator. The refrigerant can be cooled in the form of being discharged to the outdoor air, and conversely, during heating operation, the refrigerant flow is performed so that the outdoor unit functions as an evaporator and the indoor unit functions as a condenser. By switching the direction, the room can be heated in a form in which the heat of the outdoor air is recovered by the latent heat of vaporization of the refrigerant and released to the room air.
In order to control indoor humidity with such a compression heat pump device, it is necessary to cool indoor air or outdoor air below the dew point in an evaporator to condense moisture contained in the air. Specifically, in cooling operation, indoor air can be dehumidified by cooling indoor air below the dew point with an indoor unit that functions as an evaporator, condensing and discharging moisture contained in the indoor air. On the other hand, in the heating operation, the outdoor unit that functions as an evaporator cools the outdoor air below the dew point, condenses the moisture contained in the outdoor air, and releases the moisture to the indoor air. It can be carried out.

On the other hand, what is equipped with an adsorption-type humidity control apparatus is known as an air conditioning system which mainly performs humidity control indoors.
The adsorption-type humidity control apparatus includes a dehumidification passage that supplies air taken from the heating target space to a cooling target space different from the heating target space, and a humidification passage that supplies air taken from the cooling target space to the heating target space. And performing a moisture absorption process on the adsorbent in a form that allows the air to pass through the regenerated adsorbent in the dehumidification passage with cooling by the air cooling section, and also involves heating the air in the humidification path with the air heating section. The adsorbent is regenerated in such a manner that it passes through the adsorbent after the moisture absorption treatment. This adsorption-type humidity control apparatus dehumidifies the heating target space outside and the cooling target space indoors in the cooling operation, and the heating target space indoors and the cooling target space outdoor in the heating operation. By switching the air flow state in the passage and the humidifying passage, it is possible to switch between a cooling operation for dehumidifying the room and a heating operation for humidifying the room.

There is known an air conditioning system that includes both the compression heat pump device and the adsorption humidity control device as described above, and performs indoor temperature control and humidity control (see, for example, Patent Document 1). That is, in this air conditioning system, an evaporator (evaporator coil) of a compression heat pump device is disposed as an air cooling unit that cools air before passing through the adsorbent in the dehumidification passage, and passes through the adsorbent in the humidification passage. A condenser (condenser coil) of a compression heat pump device is arranged as an air heating unit that heats the air before starting.
In general, an evaporator and a condenser arranged as an air cooling unit and an air heating unit in the adsorption type humidity control apparatus are an evaporator and a condenser arranged in a compression heat pump device. That is, the compression heat pump device is not configured to adjust the temperature in the room alone, but is also configured to adjust the temperature in addition to the air humidity adjustment in the dehumidification passage or the humidification passage of the adsorption type humidity control device.
Further, in this type of air conditioning system, in order to further increase the humidity control capability of the adsorption humidity control device, as an air heating unit for heating air in the humidification passage, in addition to the condenser, An exhaust heat exchanger that heats air by exhaust heat contained in exhaust gas or the like is disposed. That is, by raising the temperature of the air before passing through the adsorbent in the humidification passage in both the exhaust heat exchanger and the condenser, the adsorbent is sufficiently regenerated, and moisture adsorption and desorption of the adsorbent are performed. As a result, the humidity control ability can be enhanced.

JP 2009-150631 A

In the conventional air conditioning system that combines the above-described adsorption type humidity control device and the compression heat pump device, the evaporator and the condenser of the compression type heat pump device are arranged between the devices in order to arrange them in the adsorption type humidity control device. It is necessary to lay refrigerant piping, but in addition to this, it is necessary to send the exhaust heat etc. of the gas engine arranged on the compression heat pump device side to the exhaust heat exchanger arranged on the adsorption humidity controller side Therefore, it is necessary to lay hot water piping between the devices.
When laying refrigerant piping, there is no particular problem because the internal refrigerant flows out to the outside with evaporation at the time of leakage, but when laying hot water piping, inundation at the time of leakage becomes a problem, Sufficient measures for water leakage and drainage must be taken, leading to increased costs and complicated piping installation work.
In addition, when an evaporator and a condenser arranged as an air cooling unit and an air heating unit in an adsorption humidity control device are connected in series to an evaporator and a condenser arranged in a compression heat pump device, The humidity control capacity of the adsorption-type humidity control device cannot be adjusted separately from the temperature control capability of the compression heat pump device, so the indoor temperature and humidity are adjusted separately for comfort and energy saving. I couldn't.

  The present invention has been made paying attention to such a point, and an object of the present invention is to lay pipes in an air conditioning system that adjusts indoor temperature and humidity by combining an adsorption humidity control device and a compression heat pump device. The aim is to provide a technology that adjusts the indoor temperature and humidity separately in consideration of comfort and energy saving while simplifying the work and adopting a reasonable and inexpensive device configuration.

In order to achieve this object, an air conditioning system according to the present invention includes:
A dehumidifying passage for supplying air taken in from the heating target space to a cooling target space different from the heating target space; and a humidifying passage for supplying air taken in from the cooling target space to the heating target space; Moisture absorption treatment is performed in which air is passed through the regenerated adsorbent with cooling by the air cooling unit in the passage, and air is passed through the moisture adsorbent after heating in the humidification passage with the air heating unit. An adsorption-type humidity control device for performing a regeneration process;
Heat exchange between the refrigerant flowing through the first high-pressure side refrigerant pipe and the air in the heating target space is performed on the first high-pressure side refrigerant pipe that guides the refrigerant compressed by the refrigerant compressor to the first expansion valve. A refrigerant that is disposed through the first low-pressure side refrigerant pipe and the cooling target is disposed in a first low-pressure side refrigerant pipe that arranges a condensing unit and guides the refrigerant expanded by the first expansion valve to the refrigerant compressor. A compression heat pump device in which an evaporation unit that performs heat exchange with air in the space is disposed, and
An air conditioning system for adjusting the temperature and humidity of the room, with one of the space to be heated and the space to be cooled being indoors and the other being outdoor.
Its feature configuration is
A second high-pressure side refrigerant pipe that leads to a second expansion valve different from the first expansion valve after taking out a part of the refrigerant compressed by the refrigerant compressor and condensing in the air heating unit; A second low-pressure side refrigerant pipe for guiding the refrigerant expanded by the expansion valve to the refrigerant compressor;
A refrigerant heating unit for heating the refrigerant flowing into the second high-pressure side refrigerant pipe;
The air cooling unit is configured by a heat exchanger that is arranged in the second low-pressure side refrigerant pipe and performs heat exchange between the refrigerant flowing through the pipe and the air flowing through the dehumidification passage,
The said air heating part is comprised in the 2nd high voltage | pressure side refrigerant | coolant pipe line, and is comprised with the heat exchanger which performs heat exchange with the refrigerant | coolant which flows through the said pipe line, and the air which flows through the said humidification channel | path. It is in.

According to this characteristic configuration, with respect to the refrigerant compressor disposed in the compression heat pump device, in the compression heat pump device, the first high-pressure side refrigerant pipe, the first expansion valve, and the evaporation in which the condensing unit is disposed. A refrigerant circulation circuit composed of a first low-pressure side refrigerant pipe in which a part is arranged, and a second high-pressure side refrigerant pipe in which a heat exchanger constituting an air heating part is arranged in the adsorption humidity control device, a second expansion The valve and the refrigerant circulation circuit including the second low-pressure side refrigerant pipe in which the heat exchanger constituting the air cooling unit is arranged are connected in parallel.
In the compression heat pump apparatus, the refrigerant is circulated between the refrigerant compressor and the refrigerant circulation circuit of the compression heat pump apparatus, so that heat is absorbed from the cooling target space to the refrigerant by the endothermic action accompanying the evaporation of the refrigerant in the evaporation unit. On the other hand, the indoor temperature can be adjusted in a form in which heat is released from the refrigerant to the space to be heated by the heat radiation action accompanying the condensation of the refrigerant in the condenser.
On the other hand, in the adsorption type humidity control apparatus, the refrigerant absorbs heat due to the evaporation of the refrigerant in the heat exchanger constituting the air cooling unit by circulating the refrigerant between the refrigerant compressor and the refrigerant circulation circuit of the adsorption type humidity control apparatus. Heat is taken into the refrigerant from the air that passes through the adsorbent in the dehumidifying passage by the action and is subjected to moisture absorption treatment, while the adsorbent in the humidifying passage from the refrigerant by the heat dissipation action accompanying the condensation of the refrigerant in the heat exchanger constituting the air heating unit The humidity inside the room can be adjusted in such a manner that heat is released to the air passing through the regenerating process.
Since the refrigerant circulation circuits of the compression heat pump device and the adsorption humidity controller are connected in parallel to the refrigerant compressor, the refrigerant flow rate in each refrigerant circulation circuit is adjusted separately. Thus, each of the temperature control capability of the compression heat pump device and the humidity control capability of the adsorption type humidity control device can be adjusted separately. As a result, while setting the temperature control capability of the compression heat pump device to a low level and reducing the temperature difference between the room and the outside to ensure energy saving, the humidity control capability of the adsorption humidity control device is set to be high and The indoor temperature and humidity can be adjusted individually in consideration of comfort and energy saving, such as ensuring the comfort by enlarging the difference in humidity.

In addition, the refrigerant heating unit is provided on the compression heat pump device side, and the refrigerant heating unit heats the refrigerant flowing into the second high-pressure side refrigerant pipe. Therefore, between the compression heat pump device and the adsorption humidity controller, Does not need to lay hot water piping for conveying heat for heating the refrigerant, but only lays the refrigerant piping constituting the second high-pressure side refrigerant pipe and the second low-pressure side refrigerant pipe. It's okay.
Furthermore, by providing such a refrigerant heating section, a higher-temperature refrigerant is supplied from the second high-pressure side refrigerant pipe to the air heating section, and the air that performs the regeneration process through the adsorbent in the humidification passage is heated by air. Since it can be heated to a higher temperature by the part, the adsorption-type humidity control device can exhibit a high humidity control capability.
Therefore, according to the present invention, in an air conditioning system for controlling the temperature and humidity in a room by combining an adsorption type humidity control device and a compression heat pump device, the piping construction work is simplified and a rational and inexpensive device configuration is adopted. However, it is possible to provide a technique for individually adjusting the indoor temperature and humidity in consideration of comfort and energy saving.

A further characteristic configuration of the air conditioning system according to the present invention is as follows.
The driving source of the refrigerant compressor is a gas engine,
The refrigerant heating unit heats the refrigerant by heat exchange with exhaust heat of the gas engine.

  According to this characteristic configuration, since the gas engine as the drive source of the refrigerant compressor is provided on the compression heat pump device side, the second high-pressure side refrigerant is also provided in the refrigerant heating unit similarly provided on the compression heat pump device side. The refrigerant flowing into the pipeline can be heated by heat exchange with the exhaust heat of the gas engine.

A further characteristic configuration of the air conditioning system according to the present invention is as follows.
A refrigerant distribution flow rate adjustment valve capable of adjusting a refrigerant distribution flow rate from the refrigerant compressor to the second high-pressure side refrigerant pipe;
Temperature control means for controlling the rotational speed of the refrigerant compressor so as to maintain the indoor temperature at the target temperature;
Humidity control means for controlling the opening of the refrigerant distribution flow rate adjustment valve so as to maintain the indoor humidity at the target humidity.

According to this characteristic configuration, if the refrigerant circulation flow rate in the refrigerant circulation circuit of the compression heat pump device is adjusted by controlling the rotational speed of the refrigerant compressor by the temperature control means, the evaporation pressure and condensation of the refrigerant in the evaporation unit can be adjusted. Since the cooling pressure and heating temperature for the air can be changed by changing the condensation pressure of the refrigerant in the section, as a result, the indoor temperature can be maintained at the target temperature.
Further, the opening degree of the refrigerant distribution flow rate adjustment valve is controlled by the humidity control described above, and the refrigerant distribution flow rate from the refrigerant compressor to the second high-pressure side refrigerant pipe, in other words, in the refrigerant circulation circuit of the adsorption humidity controller By adjusting the refrigerant circulation flow rate, the refrigerant evaporating pressure in the air cooling unit and the refrigerant condensing pressure in the air heating unit can be changed to change the cooling temperature and heating temperature for those air. It is possible to maintain the indoor humidity at the target humidity by changing the moisture absorption and regeneration degree of the material.

A further characteristic configuration of the air conditioning system according to the present invention is as follows.
The heat exchanger functioning as the air cooling unit and the air heating unit includes a first adsorption heat exchanger and a second adsorption heat exchanger in which the adsorbent is provided on the air side surface,
The first passage in which the first adsorption heat exchanger is disposed in a state where the first adsorption heat exchanger functions as the air cooling unit is used as the dehumidification passage, and the second adsorption heat exchanger is used as the air. A first state where the humidifying passage is the second passage where the second adsorption heat exchanger is arranged in a state where the second adsorption heat exchanger is functioned as a heating unit, and a state where the first adsorption heat exchanger is functioned as the air heating unit In the second state in which the first passage is used as the humidification passage, and the second passage is used as the dehumidification passage in a state where the second adsorption heat exchanger functions as the air cooling unit, The present invention is characterized in that it includes moisture absorption regeneration switching means for switching the flow state of the refrigerant and air in the adsorption humidity control device at predetermined time intervals to perform the moisture absorption process and the regeneration process for the adsorbent.

According to this characteristic configuration, in the first adsorption heat exchanger and the second adsorption heat exchanger functioning as an air cooling unit or an air heating unit, cold heat or heat is directly transmitted to the adsorbent provided on the air-side surface. Thus, it is possible to sufficiently absorb moisture or regenerate the adsorbent material and improve the humidity control capability of the adsorption humidity control apparatus.
That is, the first adsorption heat exchanger and the second adsorption heat exchange are switched between the first state and the second state by switching the flow state of the refrigerant and air in the adsorption humidity controller at predetermined time intervals. Each of the first passage and the second passage in which each of the devices is disposed is switched between the dehumidification passage and the humidification passage, and at the same time, each of the first adsorption heat exchanger and the second adsorption heat exchanger is an air cooling section. It will switch between air heating parts. As a result, evaporation or condensation of the refrigerant flowing through the interior of the respective heat exchangers with respect to the respective adsorbents provided on the air-side surfaces of the first adsorption heat exchanger and the second adsorption heat exchanger. As a result, cold air and hot air are transmitted alternately alternately, and at the same time, air in the dehumidifying passage and air in the humidifying passage pass through alternately contacting each other, so that each adsorbent absorbs and regenerates moisture. And will be done sufficiently.

A further characteristic configuration of the air conditioning system according to the present invention is as follows.
Air-conditioning switching means for switching between air-conditioning operation and heating operation is provided,
When the cooling / heating switching means is in a cooling operation, the outside is set as the heating target space and the room is set as the cooling target space, and during the heating operation, the room is set as the heating target space and the outside is set as the cooling target space. As described above, the refrigerant and air flow state in the adsorption humidity control device and the refrigerant flow state in the compression heat pump device are switched.

According to this characteristic configuration, by providing the cooling / heating switching means, the cooling operation for performing cooling by the compression heat pump device and dehumidification by the adsorption humidity control device for the room, and heating and adsorption by the compression heat pump device are performed. The heating operation for performing humidification by the humidity controller can be switched and executed.
That is, during the cooling operation in the compression heat pump apparatus, the indoor unit provided in the room functions as an evaporation unit so that the space to be cooled is indoors, while the indoor unit provided in the room is provided outside in order to make the space to be heated outdoor. The refrigerant flow state is switched so that the outdoor unit functions as a condensing unit. Therefore, heat is absorbed into the refrigerant from the room by the endothermic effect accompanying the evaporation of the refrigerant in the indoor unit functioning as the evaporation unit, and the heat is released from the refrigerant to the outside by the heat dissipation effect due to the refrigerant condensation in the outdoor unit functioning as the condensing unit In the form, indoor cooling can be performed.
Further, during the heating operation in the compression heat pump device, the indoor unit provided in the room functions as a condensing unit so that the space to be heated is indoors, while the indoor unit provided in the room is provided outdoors so that the space to be cooled is outdoor. The refrigerant flow state is switched so that the outdoor unit functions as an evaporator. Therefore, heat is taken into the refrigerant from the outside by the endothermic effect accompanying the evaporation of the refrigerant in the outdoor unit functioning as the evaporation unit, and the heat is released from the refrigerant to the room by the heat radiation effect due to the condensation of the refrigerant in the indoor unit functioning as the condensing unit. In the form, indoor heating can be performed.

On the other hand, in the cooling operation of the adsorption humidity control apparatus, a passage for supplying air taken from the outside to the room functions as a dehumidification passage and is disposed in the passage so that the space to be cooled is indoors and the space to be heated is outdoor. The heat exchanger functions as an air cooling unit, while the passage for supplying the air taken in from the room to the outside functions as a humidifying passage and the heat exchanger disposed in the passage functions as an air heating unit. The air flow state in each passage and the refrigerant flow state in each heat exchanger are switched. Therefore, air in which moisture is adsorbed by the adsorbent through the dehumidification passage is supplied to the room, and air from which moisture is released from the adsorbent is supplied to the outside through the humidification passage. , Indoor dehumidification can be performed.
Further, in the heating operation of the adsorption humidity control apparatus, a passage for supplying air taken from the outside to the room functions as a humidifying passage and is disposed in the passage so that the heating target space is indoors and the cooling target space is outdoor. The heat exchanger functions as an air heating unit, while the passage for supplying the air taken from the room to the outside functions as a dehumidification passage and the heat exchanger disposed in the passage functions as an air cooling unit. The air flow state in each passage and the refrigerant flow state in each heat exchanger are switched. Therefore, air in which moisture is released from the adsorbent through the humidification passage is supplied to the room, and air in which moisture is adsorbed to the adsorbent is supplied to the outside through the dehumidification passage. , Indoor humidification can be performed.

The schematic block diagram which shows the 1st state at the time of the cooling operation in the air conditioning system which concerns on embodiment of this invention. The schematic block diagram which shows the 2nd state at the time of the cooling operation in the air conditioning system which concerns on embodiment of this invention. The schematic block diagram which shows the 1st state at the time of the heating operation in the air conditioning system which concerns on embodiment of this invention. The schematic block diagram which shows the 2nd state at the time of the heating operation in the air conditioning system which concerns on embodiment of this invention. The (a) top view and (b) perspective view of an adsorption heat exchanger with which the air harmony system concerning an embodiment of the present invention is provided

The air conditioning system which concerns on embodiment of this invention is demonstrated based on FIGS.
First, the basic configuration of the air conditioning system will be described.
As shown in FIG. 1, the air conditioning system of the present embodiment includes an adsorption-type humidity control device 1 for adjusting the humidity of the room R (sometimes referred to as “humidity control” in the present application), the room R A compression heat pump device 5 for performing temperature adjustment (sometimes referred to as “temperature control” in the present application) and a control device 90 configured by a computer and functioning as various means by executing predetermined programs.
Further, in this air conditioning system, a cooling operation for cooling and dehumidifying the room R (see FIGS. 1 and 2) and a heating operation for heating and humidifying the room R (FIG. 3) by the cooling / heating switching means 92 that the control device 90 functions. And (see FIG. 4).
That is, although details will be described later, during the cooling operation, as shown in FIGS. 1 and 2, the outdoor O is set as the heating target space HA, and the room R is set as the cooling target space CA. Cooling of the room R as a space by the compression heat pump device 5 and dehumidification by the adsorption humidity controller 1 are performed. On the other hand, during the heating operation, as shown in FIGS. 3 and 4, the room R is set as the heating target space HA and the outdoor O is set as the cooling target space CA, and the compression type for the room R as the heating target space is performed. Heating by the heat pump device 5 and humidification by the adsorption humidity controller 1 are performed.
Hereinafter, the detailed configurations of the adsorption humidity control device 1 and the compression heat pump device 5 will be described in order.

[Adsorption type humidity controller]
The adsorptive humidity control apparatus 1 shown in FIGS. 1 to 4 dehumidifies or humidifies the supply air SA supplied from the outdoor O (for example, outdoors) to the room R by alternately performing moisture absorption and regeneration of the adsorbent 10a. It is comprised as what is called a desiccant air conditioner which adjusts the humidity of the room | chamber interior R in the form which carries out.
Specifically, the adsorption-type humidity control apparatus 1 supplies the dehumidifying passage DL that supplies the air taken in from the heating target space HA to the cooling target space CA, and supplies the air taken in from the cooling target space CA to the heating target space HA. And a humidifying passage WL.
Then, in the dehumidifying passage DL, air is passed through the adsorbent 10a after the regeneration process with cooling by the air cooling unit CE configured by a heat exchanger, and the moisture absorbing passage WL is subjected to moisture absorption processing of the adsorbent 10a. In this embodiment, the adsorbent 10a is regenerated in such a manner that air is passed through the adsorbent 10a after the moisture absorption process with heating by the air heating unit HE constituted by a heat exchanger. The adsorbent 10a is made of a known air-permeable hygroscopic material such as zeolite, silica gel, activated carbon, etc., and absorbs moisture from the air by passing air with a lot of water with cooling. On the contrary, a regenerating process for desorbing moisture to the air is performed by passing air with low moisture with heating.

In this adsorption type humidity control apparatus 1, a second high-pressure side refrigerant pipe HP <b> 2 in which a heat exchanger constituting the air heating unit HE is arranged with respect to the refrigerant compressor 60 provided in the compression heat pump apparatus 5 described later. A refrigerant circulation circuit including the second expansion valve 30 and the second low-pressure side refrigerant pipe LP2 in which the heat exchanger constituting the air cooling unit CE is disposed is formed.
And a refrigerant | coolant is circulated between the refrigerant | coolant compressor 60 and the refrigerant | coolant circulation circuit of the adsorption-type humidity control apparatus 1, and the moisture absorption process with cooling by the air cooling part CE and the regeneration process with the heating by the air heating part HE are carried out. And done.
That is, in the air cooling unit CE, the heat absorption action accompanying the evaporation of the refrigerant in the heat exchanger constituting the air cooling unit CE passes through the adsorbent 10a in the dehumidifying passage DL in which the air cooling unit CE is disposed, and the moisture is absorbed. A moisture absorption process involving cooling by the air cooling unit CE is performed in a form of taking heat into the refrigerant. On the other hand, in the air heating unit HE, the heat is released due to the condensation of the refrigerant in the heat exchanger constituting the air heating unit HE, and the regeneration process is performed by passing the adsorbent 10a from the refrigerant in the humidification passage WL where the air heating unit HE is arranged. A regeneration process involving heating by the air heating unit HE is performed in a form that releases heat to the air.

Specifically, in the adsorption-type humidity control apparatus 1, as a heat exchanger that functions as the air cooling unit CE and the air heating unit HE, a first example in which an adsorbent 10 a is provided on the air side surface with reference to FIG. 5. An adsorption heat exchanger 11 and a second adsorption heat exchanger 12 are provided.
The adsorption heat exchangers 11 and 12 are composed of a heat transfer tube 10c meandering while being bent back and forth and a refrigerant flowing through the inside, and a plurality of fins 10b arranged on the outer surface thereof perpendicular to the heat transfer tube 10c. Further, the adsorbent 10a is coated with a predetermined thickness on the outer surfaces of the heat transfer tubes 10c and the fins 10b.
And by using such adsorption heat exchangers 11 and 12, cold heat or warm heat can be directly transmitted from the refrigerant flowing through the heat transfer tube 10c to the adsorbent 10a. Therefore, since moisture is exchanged favorably between the air flowing through the gaps between the plurality of fins 10b and the adsorbent 10a provided on the outer surface, moisture absorption or regeneration with respect to the adsorbent 10a is sufficiently performed. It is possible to improve the humidity control capability of the adsorption type humidity control apparatus 1.
The first adsorption heat exchanger 11 and the second adsorption heat exchanger 12 are connected in series via a second expansion valve 30 that expands the refrigerant in a pipe line through which the refrigerant flows, that is, the heat transfer pipe 10c. Has been.

An outdoor air passage 21 and an exhaust passage 22 that open to the outdoor O, and an indoor air passage 23 and an air supply passage 24 that open to the room R are provided. In the exhaust passage 22, air is supplied to the outdoor O side as exhaust EA. A fan 25 for sending out is provided, and a fan 26 for sending air to the room R side as air supply SA is provided in the air supply passage 24.
The outdoor air passage 21 and the air supply passage 24 communicate with each other through one of the first passages 13i and 13o and the second passages 14i and 14o by opening and closing a damper 15 described later. Accordingly, the outdoor air OA taken into the outdoor air passage 21 from the outdoor O is discharged into the room R through the air supply passage 24 as the air supply SA.
On the other hand, the indoor air passage 23 and the exhaust passage 22 also communicate with each other through one of the first passages 13i and 13o and the second passages 14i and 14o by opening and closing a damper 15 described later. Therefore, the room air RA taken from the room R into the room air passage 23 is exhausted to the outdoor O through the exhaust passage 22 as the exhaust EA.

The first passages 13i and 13o are connected to the pair of first inlet passages 13i and the exhaust passage 22 and the air supply passage 24 respectively connected to the outdoor air passage 21 and the indoor air passage 23. And a pair of first outlet passages 13o connected to each other. A damper 15 capable of interrupting air flow is disposed in each of the pair of first inlet passages 13i and the pair of first outlet passages 13o, and the pair of first inlet passages 13i and a pair The first adsorption heat exchanger 11 described above is disposed in a space formed between the first outlet passage 13o.
On the other hand, the second passages 14i and 14o are respectively a pair of second inlet passages 14i connected to the outdoor air passage 21 and the indoor air passage 23, respectively, an exhaust passage 22 and an air supply passage 24. And a pair of second outlet passages 14o connected to each other. A damper 15 capable of interrupting the air flow is disposed in each of the pair of second inlet passages 14i and the pair of second outlet passages 14o, and the pair of second inlet passages 14i and the pair of second inlet passages 14i. The second adsorption heat exchanger 12 described above is disposed in a space formed between the second outlet passage 14o.

Then, the first adsorption heat exchanger 11 and the second adsorption heat exchanger 12 are switched by switching the open / closed states of the plurality of dampers 15 to intermittently pass the air flow in the passages 13i, 13o, 14i, 14o. Can be switched between the air flow state shown in FIGS. 1 and 4 and the air flow state shown in FIGS. 2 and 3.
That is, in the air flow state shown in FIGS. 1 and 4, the outdoor air OA taken into the outdoor air passage 21 from the outdoor O has passed through the first adsorption heat exchanger 11 disposed in the first passages 13i and 13o. The air supply SA is supplied to the room R via the air supply passage 24 later, while the room air RA taken into the room air passage 23 from the room R passes through the second adsorption heat exchanger 12 and then the exhaust air passage as exhaust EA. It is discharged to the outdoor O through 22. In the cooling operation (FIG. 1), this air passage becomes the dehumidification passage DL, and in the heating operation (FIG. 4), this air passage becomes the humidification passage WL.
On the other hand, in the air flow state shown in FIGS. 2 and 3, the outdoor air OA taken into the outdoor air passage 21 from the outdoor O has passed through the second adsorption heat exchanger 12 disposed in the second passages 14i and 14o. The indoor air RA that is supplied to the room R later as the supply air SA through the air supply passage 24, while the indoor air RA taken into the indoor air passage 23 from the room R passes through the first adsorption heat exchanger 11 and is then used as the exhaust EA. It is discharged to the outdoor O through 22. In the cooling operation (FIG. 2), this air passage becomes the humidification passage WL, and in the heating operation (FIG. 3), this air passage becomes the dehumidification passage DL.
In the cooling operation and the heating operation, as shown in FIGS. 1 and 3, the state where the first passages 13i, 13o are the dehumidification passage DL and the second passages 14i, 14o are the humidification passage WL is referred to as the first state. As shown in FIGS. 2 and 4, the state where the first passages 13i, 13o are the humidification passage WL and the second passages 14i, 14o are the dehumidification passage DL is called a second state.

The refrigerant pipe 32 connected to the end of the first adsorption heat exchanger 11 opposite to the second expansion valve 30 and the end of the second adsorption heat exchanger 12 opposite to the second expansion valve 30. Are connected to the four-way switching valve 31 respectively.
The four-way switching valve 31 includes a refrigerant pipe 67 connected to the secondary side (discharge side) of the refrigerant compressor 60 of the compression heat pump device 5 and a primary side (suction side) of the refrigerant compressor 60. ) Is connected to the refrigerant pipe 68 connected to the above.
Therefore, by switching the state of the four-way switching valve 31, the refrigerant flow state with respect to the first adsorption heat exchanger 11 and the second adsorption heat exchanger 12 is changed to the state shown in FIGS. And the state shown in FIG.

  That is, in the refrigerant flow state shown in FIGS. 1 and 3 (hereinafter, this state is referred to as “first state”), the refrigerant compressed by the refrigerant compressor 60 is changed to the refrigerant pipe 67 and the four-way switching. The valve 31, the refrigerant pipe 33, the second adsorption heat exchanger 12, the second expansion valve 30, the first adsorption heat exchanger 11, the refrigerant pipe 32, the four-way switching valve 31, and the refrigerant pipe 68 are described. The refrigerant circulates in the refrigerant circulation path of the adsorption humidity control apparatus 1 in such a form that it passes back in order and is returned to the refrigerant compressor 60. In this first state, the refrigerant line 33 in which the second adsorption heat exchanger 12 is arranged becomes the second high-pressure side refrigerant line HP2 through which the high-pressure refrigerant compressed by the refrigerant compressor 60 flows, The refrigerant line 32 in which the first adsorption heat exchanger 11 is arranged becomes a second low-pressure side refrigerant line LP2 through which the low-pressure refrigerant expanded by the second expansion valve 30 flows. Therefore, in this first state, the first adsorption heat exchanger 11 functions as an evaporator that evaporates the refrigerant liquid in a low pressure environment and functions as an air cooling unit CE that cools the air flowing through the outer surface, The second adsorption heat exchanger 12 functions as a condenser that condenses the refrigerant vapor in a high-pressure environment and functions as an air heating unit HE that heats air flowing through the outer surface. That is, in the first adsorption heat exchanger 11, the low-pressure refrigerant liquid expanded by the second expansion valve 30 has an endothermic effect by evaporating, and takes heat from the air flowing through the outer surface into the refrigerant. Air flowing through the outer surface can be cooled. On the other hand, in the second adsorption heat exchanger 12, the high-pressure refrigerant vapor compressed by the refrigerant compressor 60 condenses to exert a heat radiation action, and releases the heat of the refrigerant to the air flowing through the outer surface. Air flowing through the outer surface can be heated.

On the other hand, in the refrigerant flow state shown in FIGS. 2 and 4 (hereinafter, this state is referred to as “second state”), the refrigerant compressed by the refrigerant compressor 60 is changed to the refrigerant pipe 67 and the four-way switching. The valve 31, the refrigerant pipe 32, the first adsorption heat exchanger 11, the second expansion valve 30, the second adsorption heat exchanger 12, the refrigerant pipe 33, the four-way switching valve 31, and the refrigerant pipe 68 are described. The refrigerant circulates in the refrigerant circulation path of the adsorption humidity control apparatus 1 in such a form that it passes back in order and is returned to the refrigerant compressor 60. In this second state, the refrigerant line 32 where the first adsorption heat exchanger 11 is arranged becomes the second high-pressure side refrigerant line HP2 through which the high-pressure refrigerant compressed by the refrigerant compressor 60 flows, The refrigerant line 33 in which the second adsorption heat exchanger 12 is arranged becomes a second low-pressure side refrigerant line LP through which the low-pressure refrigerant expanded by the second expansion valve 30 flows. Therefore, in this second state, the first adsorption heat exchanger 11 functions as a condenser that condenses the refrigerant vapor in a high pressure environment and functions as an air heating unit HE that heats air flowing through the outer surface, The second adsorption heat exchanger 12 functions as an evaporator that evaporates the refrigerant liquid in a low-pressure environment, and functions as an air cooling unit CE that cools the air flowing through the outer surface. That is, in the first adsorption heat exchanger 11, the high-pressure refrigerant vapor compressed by the refrigerant compressor 60 condenses to release heat, and releases the heat of the refrigerant to the air flowing through the outer surface. Air flowing through the outer surface can be heated. On the other hand, in the second adsorption heat exchanger 12, the low-pressure refrigerant liquid expanded by the second expansion valve 30 has an endothermic effect by evaporating, and takes heat from the air flowing through the outer surface into the refrigerant. Air flowing through the outer surface can be cooled.
And the moisture absorption regeneration switching means 91 in which the control device 90 functions changes the flow state of the air and the refrigerant in the adsorption humidity controller 1 between a first state and a second state at a predetermined time interval (for example, every 10 minutes). ) In the dehumidification passage DL is subjected to a moisture absorption process for passing the air to the adsorbent 10a after the regeneration process with cooling by the air cooling section CE, and the air is heated by the air heating section HE in the humidification path WL. Along with this, it is configured to perform a regeneration process that passes through the adsorbent 10a after the moisture absorption process.

Specifically, the moisture absorption regeneration switching unit 91 switches the flow state of the air and the refrigerant in the adsorption humidity control device 1 to the first state shown in FIGS. 1 and 3, so that the first adsorption heat exchanger 11. The first passages 13i and 13o in which the first adsorption heat exchanger 11 is disposed in the state where the air-cooling portion CE functions as the dehumidification passage DL, and the second adsorption heat exchanger 12 functions as the air heating portion HE. The 2nd channel | paths 14i and 14o by which the 2nd adsorption heat exchanger 12 is arrange | positioned in the made state are made into the humidification channel | path WL. Then, in the dehumidifying passage DL, the first adsorption heat exchanger 11 functions as the air cooling unit CE, and the adsorbent 10a provided on the outer surface thereof and the air passing while contacting the adsorbent 10a (during cooling operation) Since the outdoor air OA and the supply air SA, and the indoor air RA and the exhaust gas EA during the heating operation are cooled, the moisture contained in the air is adsorbed by the adsorbent 10a and the adsorbent 10a of the first adsorption heat exchanger 11 is absorbed. The moisture absorption process is performed. On the other hand, in the humidification passage WL, the second adsorption heat exchanger 12 functions as the air heating unit HE and the adsorbent 10a provided on the outer surface thereof and the air passing through the adsorbent 10a in contact with the adsorbent 10a (during cooling operation) The indoor air RA and the exhaust air EA, and the outdoor air OA and the supply air SA during the heating operation are heated, so that the moisture of the adsorbent 10a is released to the air and the adsorbent 10a of the second adsorption heat exchanger 12 is released. Will be played.
Then, by the cooling / heating switching means 92 functioning by the control device 90, the heating target space HA is set to the outdoor O and the cooling target space CA is set to the room R during the cooling operation, and the heating target space HA is set to the room R during the heating operation. In addition, since the flow state of the refrigerant and air in the adsorption humidity controller 1 is switched so that the space CA to be cooled is the outdoor O, the cooling operation shown in FIG. The dehumidification is performed in a form in which low-humidity air in which moisture is adsorbed by the adsorbent 10a of the first adsorption heat exchanger 11 is supplied as the supply air SA, and the adsorption of the second adsorption heat exchanger 12 during the heating operation shown in FIG. Humidification is performed in a form in which high-humidity air from which moisture has been released by the material 10a is supplied as the supply air SA.

On the other hand, the moisture absorption regeneration switching means 91 switches the first adsorption heat exchanger 11 to the air by switching the flow state of the air and the refrigerant in the adsorption humidity controller 1 to the second state shown in FIGS. The first passages 13i and 13o in which the first adsorption heat exchanger 11 is disposed in the state of functioning as the heating unit HE are used as the humidification passage WL, and the second adsorption heat exchanger 12 is functioned as the air cooling unit CE. In this state, the second passages 14i and 14o in which the second adsorption heat exchanger 12 is disposed are defined as a dehumidification passage DL. Then, in the dehumidification passage DL, the second adsorption heat exchanger 12 functions as the air cooling unit CE, and the air passing through the adsorbent 10a provided on the outer surface and the adsorbent 10a (during cooling operation) Since the outdoor air OA and the supply air SA, and the indoor air RA and the exhaust EA during the heating operation are cooled, the moisture contained in the air is adsorbed by the adsorbent 10a, and the adsorbent 10a of the second adsorption heat exchanger 12 is absorbed. The moisture absorption process is performed. On the other hand, in the humidification passage WL, the first adsorption heat exchanger 11 functions as the air heating unit HE, and the air passing through the adsorbent 10a provided on the outer surface and the adsorbent 10a (during cooling operation) The indoor air RA and the exhaust air EA, and the outdoor air OA and the supply air SA during the heating operation are heated, so that moisture of the adsorbent 10a is released to the air, and the adsorbent 10a of the first adsorption heat exchanger 11 is released. Will be played.
Then, by the cooling / heating switching means 92 functioning by the control device 90, the heating target space HA is set to the outdoor O and the cooling target space CA is set to the room R during the cooling operation, and the heating target space HA is set to the room R during the heating operation. 2 and the flow state of the refrigerant and the air in the adsorption humidity controller 1 is switched so that the cooling target space CA is the outdoor O. Therefore, when the cooling operation shown in FIG. The dehumidification is performed in such a form that low-humidity air, in which moisture is adsorbed by the adsorbent 10a of the two-adsorption heat exchanger 12, is supplied as the supply air SA. During the heating operation shown in FIG. Humidification is performed in a form in which high-humidity air from which moisture has been released by the material 10a is supplied as the supply air SA.

The refrigerant pipe 67 connected to the secondary side of the refrigerant compressor 60 is provided with a refrigerant distribution flow rate adjustment valve 35 that can adjust the flow rate of the refrigerant flowing through the refrigerant pipe 67.
That is, if the opening degree of the refrigerant distribution flow rate adjustment valve 35 is adjusted, the refrigerant distribution flow rate from the refrigerant compressor 60 to the second high-pressure side refrigerant pipe HP2, in other words, the air cooling unit CE in the adsorption-type humidity control apparatus 1 is achieved. In addition, the refrigerant circulation flow rate in the refrigerant circulation circuit including the air heating unit HE can be adjusted.
Furthermore, the indoor air passage 23 is provided with a temperature / humidity measuring device 40 for measuring the temperature and relative humidity of the indoor air RA taken into the indoor air passage 23 from the room R. A temperature / humidity measuring device 41 for measuring the temperature and relative humidity of the supply air SA supplied from the supply passage 24 to the room R is provided.
And the control apparatus 90 functions as the humidity control means 93 which controls the opening degree of the refrigerant | coolant distribution flow rate adjustment valve 35 so that the absolute humidity of the room | chamber R may be maintained at the predetermined target humidity.
Specifically, the humidity control means 93 sequentially calculates the absolute humidity of the room air RA from the temperature and relative humidity of the room air RA measured by the temperature / humidity measuring device 40 and is measured by the temperature / humidity measuring device 41. The absolute humidity of the supply air SA is sequentially calculated from the temperature and relative humidity of the supply air SA. The calculation of absolute humidity can be performed using an air wetness diagram, a predetermined approximate expression, or the like.
Then, the humidity control means 93 recognizes the absolute humidity of the room air RA calculated in this way as the absolute humidity of the room R, and distributes the refrigerant so that the absolute humidity of the room air RA is maintained at a predetermined target humidity. The opening degree of the flow rate adjustment valve 35 is adjusted to operate / stop the adsorption humidity control device 1 and adjust the humidity control capability during operation.

That is, during the cooling operation (see FIGS. 1 and 2), when the absolute humidity of the indoor air RA becomes higher than a predetermined operation start target humidity slightly higher than the target humidity, the refrigerant distribution in the closed state is performed. The opening degree of the flow rate adjustment valve 35 is gradually increased, the cooling capacity of the air cooling unit CE and the flow of the refrigerant to the air heating unit HE are started, the operation of the adsorption humidity control device 1 is started, and the room R Dehumidification of is started. Further, the opening degree of the refrigerant distribution flow rate adjustment valve 35 during operation is adjusted so that the absolute humidity of the supply air SA is maintained at the predetermined supply air target humidity slightly lower than the above. That is, when the absolute humidity of the supply air SA is higher than the supply air target humidity, the opening degree of the refrigerant distribution flow rate adjustment valve 35 is expanded, so that the cooling capacity of the air cooling unit CE and the heating of the air heating unit HE are increased. The capacity increases, the amount of water transferred to and from the adsorbent 10a increases, and as a result, the absolute humidity of the dehumidified supply air SA is reduced. On the contrary, when the absolute humidity of the supply air SA is lower than the supply air target humidity, the cooling capacity of the air cooling unit CE and the air heating unit HE are reduced by reducing the opening of the refrigerant distribution flow rate adjustment valve 35. The heating capacity is reduced, and the amount of moisture transferred to the adsorbent 10a is reduced. As a result, the absolute humidity of the dehumidified supply air SA is increased.
When the absolute humidity of the indoor air RA is maintained at the target humidity, the opening degree of the refrigerant distribution flow rate adjustment valve 35 is gradually reduced to the closed state, and the cooling capacity of the air cooling unit CE and the air heating unit HE are reached. The refrigerant flow is stopped, and the operation of the adsorption humidity control apparatus 1 is stopped.

On the other hand, during the heating operation (see FIGS. 3 and 4), when the absolute humidity of the indoor air RA becomes lower than a predetermined operation start target humidity slightly lower than the target humidity, the refrigerant distribution in the closed state is performed. The opening degree of the flow rate adjustment valve 35 is gradually increased, the cooling capacity of the air cooling unit CE and the flow of the refrigerant to the air heating unit HE are started, the operation of the adsorption humidity control device 1 is started, and the room R Humidification starts. Further, the opening degree of the refrigerant distribution flow rate adjustment valve 35 during operation is adjusted so that the absolute humidity of the supply air SA is maintained at the predetermined supply air target humidity slightly higher than the above. That is, when the absolute humidity of the supply air SA is lower than the supply air target humidity, the opening degree of the refrigerant distribution flow rate adjustment valve 35 is expanded, so that the cooling capacity of the air cooling unit CE and the heating of the air heating unit HE are increased. The capacity increases, the amount of water transferred to and from the adsorbent 10a increases, and as a result, the absolute humidity of the humidified supply air SA is increased. Conversely, when the absolute humidity of the supply air SA is higher than the supply air target humidity, the opening degree of the refrigerant distribution flow rate adjustment valve 35 is reduced, so that the cooling capacity of the air cooling unit CE and the air heating unit HE are reduced. The heating capacity is reduced, and the amount of moisture transferred to the adsorbent 10a is reduced. As a result, the absolute humidity of the humidified supply air SA is reduced.
When the absolute humidity of the indoor air RA is maintained at the target humidity, the opening degree of the refrigerant distribution flow rate adjustment valve 35 is gradually reduced to the closed state, and the cooling capacity of the air cooling unit CE and the air heating unit HE are reached. The refrigerant flow is stopped, and the operation of the adsorption humidity control apparatus 1 is stopped.

[Compression heat pump device]
The compression heat pump device 5 shown in FIGS. 1 to 4 is connected to the first high-pressure side refrigerant pipe HP1 that guides the refrigerant compressed by the refrigerant compressor 60 that is rotationally driven by the gas engine 50 to the first expansion valve 66. A condensing unit CO that performs heat exchange between the refrigerant flowing through the first high-pressure side refrigerant pipe HP1 and the air in the space to be heated HA is disposed, and the refrigerant expanded by the first expansion valve 66 is supplied to the refrigerant compressor 60. In the first low-pressure side refrigerant pipe LP1 to be led, an evaporator EV that performs heat exchange between the refrigerant flowing through the first low-pressure refrigerant pipe LP1 and the air in the cooling target space CA is disposed. It is configured as a so-called gas engine, heat pump, and air conditioner (GHP) that cools or heats the room R in a form in which the air in the room R is heated by cooling or condensing the CO.

Specifically, the compression heat pump device 5 includes an outdoor unit 5o disposed in an outdoor O (for example, outdoors) and an indoor unit 5r disposed in a room R, and between these outdoor units 5o and the indoor unit 5r. Then the refrigerant is circulated.
In the outdoor unit 5o, in addition to the gas engine 50 and the refrigerant compressor 60 that is rotationally driven by the gas engine 50, fin tube heat that exchanges heat between the refrigerant and the air that passes through the outer surface through which the refrigerant flows inside the heat transfer tube. An outdoor heat exchanger 70 composed of an exchanger and a fan 71 that allows the outdoor O air to pass through the outdoor heat exchanger 70 are provided. On the other hand, in the indoor unit 5r, a refrigerant is provided inside the heat transfer tube. An indoor heat exchanger 80 composed of a finned tube heat exchanger that exchanges heat between the refrigerant and the air that passes through the outer surface, and a fan 81 that allows the air in the room R to pass through the indoor heat exchanger 80. Is provided.

One end of the refrigerant pipe 64 in which the outdoor heat exchanger 70 is arranged and one end of the refrigerant pipe 65 in which the indoor heat exchanger 80 is arranged respectively expand the high-pressure refrigerant. 1 is connected via an expansion valve 66.
On the other hand, the other side end of the refrigerant pipe 64 where the outdoor heat exchanger 70 is arranged and the other side end of the refrigerant pipe 65 where the indoor heat exchanger 80 is arranged are each a four-way switching valve 63. It is connected to the.
The four-way switching valve 63 includes a refrigerant pipe 61 connected to the secondary side (discharge side) of the refrigerant compressor 60 and a refrigerant connected to the primary side (suction side) of the refrigerant compressor 60. A pipe line 62 is connected. Therefore, by switching the state of the four-way switching valve 31, the refrigerant flow state with respect to the outdoor heat exchanger 70 and the indoor heat exchanger 80 is changed to the cooling state shown in FIGS. 1 and 2, and FIGS. It can be switched between the heating states shown in FIG.

  That is, in the cooling state shown in FIG. 1 and FIG. 2, the refrigerant compressed by the refrigerant compressor 60 is transferred to the refrigerant pipe 61, the four-way switching valve 63, the outdoor heat exchanger 70 disposed in the refrigerant pipe 64, After passing through the indoor heat exchanger 80, the four-way switching valve 63, and the refrigerant pipe 62 arranged in the order described in the order of the expansion valve 66, the refrigerant pipe 65, compression is performed in a form that is returned to the refrigerant compressor 60. The refrigerant circulates in the refrigerant circulation path of the heat pump device 5. In this cooling state, the refrigerant pipe 64 in which the outdoor heat exchanger 70 is arranged becomes the first high-pressure side refrigerant pipe HP1 through which the high-pressure refrigerant compressed by the refrigerant compressor 60 flows, and indoor heat exchange is performed. The refrigerant line 65 in which the vessel 80 is arranged becomes the first low-pressure side refrigerant line LP1 through which the low-pressure refrigerant expanded by the first expansion valve 66 flows. Therefore, in this cooling state, the indoor heat exchanger 80 functions as an evaporation unit EV that evaporates the refrigerant liquid under a low pressure environment to cool the air in the room R flowing through the outer surface, while the outdoor heat exchanger 70 Functions as a condensing part CO that condenses the refrigerant vapor in a high pressure environment and heats the air in the outdoor O flowing through the outer surface. That is, in the indoor heat exchanger 80, the low-pressure refrigerant liquid expanded by the first expansion valve 66 has an endothermic effect and evaporates heat from the air in the room R flowing through the outer surface into the refrigerant. The room R flowing through the outer surface can be cooled to cool the room R. On the other hand, in the outdoor heat exchanger 70, the high-pressure refrigerant vapor compressed by the refrigerant compressor 60 condenses, thereby releasing heat and releasing the heat of the refrigerant to the outdoor O air flowing through the outer surface. The outdoor O air flowing through the outer surface can be heated.

  On the other hand, in the heating state shown in FIG. 3 and FIG. 4, the refrigerant compressed by the refrigerant compressor 60 is the indoor heat exchanger 80 disposed in the refrigerant pipe 61, the four-way switching valve 63, and the refrigerant pipe 65, After passing through the expansion valve 66, the outdoor heat exchanger 70 disposed in the refrigerant pipe 64, the four-way switching valve 63, and the refrigerant pipe 62 in the stated order, the compressed air is returned to the refrigerant compressor 60 and compressed. The refrigerant circulates in the refrigerant circulation path of the heat pump device 5. In this heating state, the refrigerant pipe 65 in which the indoor heat exchanger 80 is arranged becomes the first high-pressure side refrigerant pipe HP1 through which the high-pressure refrigerant compressed by the refrigerant compressor 60 flows, and outdoor heat exchange is performed. The refrigerant line 64 in which the vessel 70 is disposed becomes the first low-pressure side refrigerant line LP1 through which the low-pressure refrigerant expanded by the first expansion valve 66 flows. Therefore, in this cooling state, the outdoor heat exchanger 70 functions as an evaporation unit EV that evaporates the refrigerant liquid in a low pressure environment to cool the air in the room R flowing through the outer surface, while the indoor heat exchanger 80 Functions as a condensing part CO that condenses the refrigerant vapor in a high pressure environment and heats the air in the outdoor O flowing through the outer surface. That is, in the indoor heat exchanger 80, the high-pressure refrigerant vapor compressed by the refrigerant compressor 60 condenses, thereby releasing heat and releasing the heat of the refrigerant to the air in the room R flowing through the outer surface. The room R flowing through the outer surface can be heated to heat the room R. On the other hand, in the outdoor heat exchanger 70, the low-pressure refrigerant liquid expanded by the first expansion valve 66 has an endothermic effect and evaporates heat from the air in the room R flowing through the outer surface into the refrigerant. The air in the room R flowing through the outer surface can be cooled.

  Then, by the cooling / heating switching means 92 functioning by the control device 90, the heating target space HA is set to the outdoor O and the cooling target space CA is set to the room R during the cooling operation, and the heating target space HA is set to the room R during the heating operation. And the refrigerant flow state in the compression heat pump device 5 is switched between the cooling state and the heating state so that the cooling target space CA is the outdoor O. In the cooling operation shown in FIGS. 1 and 2, the indoor heat exchanger 80 is caused to function as the evaporator EV, and the air in the room R is cooled by the indoor heat exchanger 80, and FIGS. During the heating operation shown, heating is performed in such a manner that the indoor heat exchanger 80 functions as the condenser CO and the air in the room R is heated by the indoor heat exchanger 80.

The refrigerant compressor 60 is configured to be able to adjust the rotation speed by adjusting the output of the gas engine 50.
That is, if the rotational speed of the refrigerant compressor 60 is adjusted, the refrigerant circulation flow rate in the refrigerant circuit including the outdoor heat exchanger 70 and the indoor heat exchanger 80 in the compression heat pump device 5 can be adjusted.
Furthermore, the indoor unit 5r is provided with a temperature measuring device 83 that measures the temperature of the air that has passed through the indoor heat exchanger 80 and is cooled or heated (hereinafter referred to as “indoor blowing temperature”).
And the control apparatus 90 functions as the temperature control means 94 which controls the rotational speed of the refrigerant | coolant compressor 60 so that the temperature of the room | chamber R may be maintained at predetermined | prescribed target temperature.
Specifically, the temperature control means 94 adjusts the rotational speed of the refrigerant compressor 60 by adjusting the output of the gas engine 50 so that the indoor blowing temperature measured by the temperature measuring device 83 is maintained at the target temperature. Do.
That is, during the cooling operation (see FIGS. 1 and 2), when the blowing temperature becomes higher than the target temperature, the rotational speed of the refrigerant compressor 60 is increased and the indoor heat functioning as the evaporation unit EV is increased. The cooling capacity of the exchanger 80 is increased, and as a result, the indoor blowing temperature is lowered. On the other hand, when the blowing temperature is lower than the target temperature, the rotational speed of the refrigerant compressor 60 is reduced, and the cooling capacity of the indoor heat exchanger 80 functioning as the evaporation unit EV is reduced. The indoor blowing temperature can be increased.
On the other hand, during the heating operation (see FIGS. 3 and 3), when the blowing temperature becomes lower than the target temperature, the rotational speed of the refrigerant compressor 60 is increased and the indoor heat functioning as the condensing unit CO is increased. The heating capacity of the exchanger 80 is increased, and as a result, the indoor blowing temperature is increased. On the contrary, when the blowing temperature becomes higher than the target temperature, the rotational speed of the refrigerant compressor 60 is decreased, and the heating capacity of the indoor heat exchanger 80 functioning as the condensing unit CO is decreased. The indoor blowing temperature is reduced.
In the present embodiment, the temperature control means 94 controls the rotational speed of the refrigerant compressor 60 based on the indoor blowing temperature. However, a temperature measuring device for measuring the temperature of the indoor heat exchanger 80 is provided. The rotational speed of the refrigerant compressor 60 may be controlled based on the temperature of the indoor heat exchanger 80 (evaporation temperature during cooling operation and condensation temperature during heating operation).

Furthermore, the outdoor unit 5o of the compression heat pump device 5 includes a refrigerant heating unit that heats the refrigerant flowing into the second high-pressure side refrigerant pipe HP2 of the adsorption humidity control device 1 by heat exchange with the exhaust heat of the gas engine. As described above, a refrigerant heating heat exchanger 54 that performs heat exchange between the refrigerant flowing through the refrigerant pipe 67 and the cooling water of the gas engine 50 is provided.
The cooling water supplied to the refrigerant heating heat exchanger 54 flows through the water jacket of the gas engine 50 and is heated, and then flows through the exhaust gas heat exchanger 53 disposed in the exhaust passage 51 of the gas engine 50. It is the cooling water heated to high temperature (for example, 90 degreeC) by heat exchange with waste gas.
Therefore, even if the temperature of the refrigerant after compression is relatively high (for example, 75 ° C.) at the time of rated rotation of the refrigerant compressor 60 or the like, the refrigerant is heated by the refrigerant heating heat exchanger 54 with the high-temperature cooling water. It can be heated to a high temperature by exchange.
And in the adsorption-type humidity control apparatus 1, the refrigerant | coolant heated by high temperature is supplied with respect to the air heating part HE from 2nd high voltage | pressure side refrigerant | coolant pipeline HP2, and it passes the adsorbent 10a in the humidification channel | path WL. Since the air to be regenerated is heated to a higher temperature by the air heating unit HE, the adsorptive humidity control apparatus 1 exhibits a high humidity control capability.
The cooling water after passing through the refrigerant heating heat exchanger 54 is cooled by the radiator 55 and then supplied to the water jacket of the gas engine 50 through the circulation pump 56 that circulates the cooling water.

Further, in the air conditioning system as described above, since the dehumidification of the room R is performed by the adsorption humidity control apparatus 1 during the cooling operation, the compression heat pump apparatus 5 uses the indoor heat exchanger 80 that functions as the evaporation unit EV. The air in the room R does not need to be dehumidified by being cooled below the dew point.
Therefore, the control device 90 is configured to control the opening degree of the first expansion valve 66 to be relatively large so that the evaporation temperature of the indoor heat exchanger 80 is limited to the dew point of the room R or higher. As a result, the refrigerant pressure on the primary side (suction side) of the refrigerant compressor 60 is maintained relatively high, so that the power required to rotationally drive the refrigerant compressor 60 is reduced. As a result, the compression heat pump The coefficient of performance of the apparatus 5 (COP, the ratio of the amount of heat released from the condenser CO with respect to the input energy from the refrigerant compressor 60) is improved.

[Other Embodiments]
Finally, other embodiments of the present invention will be described. Note that the configuration of each embodiment described below is not limited to being applied independently, and can be applied in combination with the configuration of other embodiments as long as no contradiction arises.

(1) In the above embodiment, the refrigerant distribution flow rate adjustment valve 35 capable of adjusting the refrigerant distribution flow rate from the refrigerant compressor 60 to the second high-pressure side refrigerant pipe HP2 of the adsorption humidity controller 1 is provided, and humidity control is performed. The means 93 controls the opening degree of the refrigerant distribution flow rate adjustment valve 35 so that the humidity in the room R is maintained at the target humidity. Separately, the refrigerant distribution flow rate adjustment valve 35 and the humidity control means are used. 93 may be omitted, and a constant amount of refrigerant may be supplied from the refrigerant compressor 60 to the second high-pressure side refrigerant pipe HP2 of the adsorption humidity controller 1 at all times.

(2) In the above embodiment, the temperature control means 94 controls the rotational speed of the refrigerant compressor 60 so as to maintain the temperature of the room R at the target temperature. The means 94 may be omitted, and the refrigerant compressor 60 may be always driven at a constant rotational speed.

(3) In the said embodiment, in the adsorption-type humidity control apparatus 1, as the heat exchanger which functions as the air cooling part CE and the air heating part HE, the 1st adsorption heat exchanger 11 which provided the adsorbent 10a in the air side surface And the second adsorption heat exchanger 12 is adopted, and the moisture absorption regeneration switching means 91 switches the flow state of the refrigerant and the air at predetermined time intervals so that the moisture absorption process and the regeneration process are performed on the adsorbent 10a. For example, the adsorbent 10a is constituted by a desiccant rotor that is rotationally driven, and is disposed in a state in which the dehumidifying passage DL and the humidifying passage WL are passed through the desiccant rotor, and the desiccant rotor in the dehumidifying passage DL is arranged. A heat exchanger as the air cooling unit CE is arranged on the upstream side, and a heat exchanger as the air heating unit HE is arranged on the upstream side of the desiccant rotor in the humidification passage WL. In, it may be structured device 1 moisture sorption-tone as desiccant air-conditioning system of a so-called rotor type.

(4) Although the driving source of the refrigerant compressor 60 is the gas engine 50 in the above embodiment, the refrigerant compressor 60 may be driven by a driving source other than the gas engine 50 such as an electric motor. Further, in the above embodiment, in the refrigerant heating heat exchanger 54, the heat source for heating the refrigerant is the exhaust heat of the gas engine 50. However, when the gas engine 50 is not used as a drive source, another heat source such as solar heat is used. The refrigerant may be heated by a heat source.

(5) In the above embodiment, the air conditioning system is configured as a system that can selectively execute both the cooling operation and the heating operation by the cooling / heating switching unit 92, but only one of the cooling operation and the heating operation is performed. It may be configured as an executable system.

  The present invention has a dehumidifying passage for supplying air taken in from the heating target space to a cooling target space different from the heating target space, and a humidifying passage for supplying air taken in from the cooling target space to the heating target space. In the dehumidifying passage, the moisture is passed through the adsorbent after the regeneration treatment with cooling by the air cooling section, and the air is absorbed in the humidifying passage after the moisture absorption treatment with the heating by the air heating section. An adsorbing humidity control device that performs a regeneration process that passes through the material, and a first high-pressure side refrigerant pipe that guides the refrigerant compressed by a refrigerant compressor that is rotationally driven by a gas engine to the first expansion valve. A first low-pressure side that arranges a condensing unit that exchanges heat between the refrigerant flowing through the side refrigerant pipe and the air in the space to be heated, and guides the refrigerant expanded by the first expansion valve to the refrigerant compressor In the refrigerant line, A compression heat pump device in which an evaporating unit that performs heat exchange between the refrigerant flowing through the first low-pressure side refrigerant pipe and the air in the cooling target space is disposed, and the heating target space and the cooling target The present invention can be suitably used as an air conditioning system that adjusts the temperature and humidity of the room, with one of the spaces indoors and the other outdoor.

1: Adsorption type humidity control device 5: Compression heat pump device 10a: Adsorbent 11: First adsorption heat exchanger 12: Second adsorption heat exchanger 13i, 13o: First passage 14i, 14o: Second passage 30: First 2 expansion valve 35: refrigerant distribution flow rate adjustment valve 50: gas engine 54: refrigerant heating heat exchanger (refrigerant heating unit)
60: Refrigerant compressor 66: First expansion valve 91: Moisture absorption regeneration switching means 92: Air conditioning switching means 93: Humidity control means 94: Temperature control means CA: Cooling target space CE: Air cooling section CO: Condensing section DL: Dehumidification passage EV: Evaporating section HA: Heating target space HE: Air heating section HP1: First high-pressure side refrigerant pipe HP2: Second high-pressure side refrigerant pipe LP: Second low-pressure side refrigerant pipe LP1: First low-pressure side refrigerant Line LP2: Second low-pressure side refrigerant line O: Outdoor R: Indoor WL: Humidification passage

Claims (5)

A dehumidifying passage for supplying air taken in from the heating target space to a cooling target space different from the heating target space; and a humidifying passage for supplying air taken in from the cooling target space to the heating target space; Moisture absorption treatment is performed in which air is passed through the regenerated adsorbent with cooling by the air cooling unit in the passage, and air is passed through the moisture adsorbent after heating in the humidification passage with the air heating unit. An adsorption-type humidity control device for performing a regeneration process;
Heat exchange between the refrigerant flowing through the first high-pressure side refrigerant pipe and the air in the heating target space is performed on the first high-pressure side refrigerant pipe that guides the refrigerant compressed by the refrigerant compressor to the first expansion valve. A refrigerant that is disposed through the first low-pressure side refrigerant pipe and the cooling target is disposed in a first low-pressure side refrigerant pipe that arranges a condensing unit and guides the refrigerant expanded by the first expansion valve to the refrigerant compressor. A compression heat pump device in which an evaporation unit that performs heat exchange with air in the space is disposed, and
An air conditioning system for adjusting the temperature and humidity of the room, with one of the space to be heated and the space to be cooled being indoors and the other being outdoor.
A second high-pressure side refrigerant pipe that leads to a second expansion valve different from the first expansion valve after taking out a part of the refrigerant compressed by the refrigerant compressor and condensing in the air heating unit; A second low-pressure side refrigerant pipe for guiding the refrigerant expanded by the expansion valve to the refrigerant compressor;
A refrigerant heating unit for heating the refrigerant flowing into the second high-pressure side refrigerant pipe;
The air cooling unit is configured by a heat exchanger that is arranged in the second low-pressure side refrigerant pipe and performs heat exchange between the refrigerant flowing through the pipe and the air flowing through the dehumidification passage,
The air is configured by a heat exchanger in which the air heating unit is arranged in the second high-pressure side refrigerant pipe and performs heat exchange between the refrigerant flowing through the pipe and the air flowing through the humidifying passage. Harmony system. The driving source of the refrigerant compressor is a gas engine,
The air conditioning system according to claim 1, wherein the refrigerant heating unit heats the refrigerant by heat exchange with exhaust heat of the gas engine. A refrigerant distribution flow rate adjustment valve capable of adjusting a refrigerant distribution flow rate from the refrigerant compressor to the second high-pressure side refrigerant pipe;
Temperature control means for controlling the rotational speed of the refrigerant compressor so as to maintain the indoor temperature at the target temperature;
The air conditioning system according to claim 1, further comprising a humidity control unit that controls an opening degree of the refrigerant distribution flow rate adjustment valve so as to maintain the humidity in the room at a target humidity. The heat exchanger functioning as the air cooling unit and the air heating unit includes a first adsorption heat exchanger and a second adsorption heat exchanger in which the adsorbent is provided on the air side surface,
The first passage in which the first adsorption heat exchanger is disposed in a state where the first adsorption heat exchanger functions as the air cooling unit is used as the dehumidification passage, and the second adsorption heat exchanger is used as the air. A first state where the humidifying passage is the second passage where the second adsorption heat exchanger is arranged in a state where the second adsorption heat exchanger is functioned as a heating unit, and a state where the first adsorption heat exchanger is functioned as the air heating unit In the second state in which the first passage is used as the humidification passage, and the second passage is used as the dehumidification passage in a state where the second adsorption heat exchanger functions as the air cooling unit, The moisture absorption regeneration switching means for performing the moisture absorption process and the regeneration process on the adsorbent by switching the flow state of the refrigerant and air in the adsorption humidity controller at predetermined time intervals. The air conditioning system according to claim 1. Air-conditioning switching means for switching between air-conditioning operation and heating operation is provided,
When the cooling / heating switching means is in a cooling operation, the outside is set as the heating target space and the room is set as the cooling target space, and during the heating operation, the room is set as the heating target space and the outside is set as the cooling target space. The air conditioning system according to any one of claims 1 to 4, wherein the refrigerant and air flow state in the adsorption humidity controller and the refrigerant flow state in the compression heat pump device are switched.

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