JP2000291980A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve an effective air-conditioning capacity without using a chlorofluocarbon refrigerant. SOLUTION: A compressor 21, a heat exchanger 30 and an expander 22 are successively connected together to form a first system 20. The first system 20 takes outdoor air and indoor air as first air, cools the first air and supplies to a room. A humidifying precooler 41 and the heat exchanger 30 are successively connected to form a second system 40. The second system 40 takes in the indoor air as second air and performs heat exchange between the first air and the second air, to exhaust outside the air thus obtained. A moisture absorbing part 62 of a dehumidifying mechanism 60 is provided in a first inlet duct 23, and a moisture discharging part 63 is provided in a second inlet duct 43. A rotor member 61 rotates and moves between the moisture absorbing part 62 and the moisture discharging part 63 to absorb moisture from the first air and discharge moisture to the second air. A humidifying cooler 90 is provided in a first outlet duct 24 to further cool the first air from the expander 22 and supply the cooled air to the room.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for performing both temperature operation and humidity operation.

[0002]

2. Description of the Related Art Conventionally, an air conditioner for performing so-called desiccant air conditioning has been known. This air conditioner
It is configured to perform air conditioning by controlling the humidity of the air. That is, according to this type of air conditioner, air conditioning can be performed without using an artificial synthetic refrigerant such as a CFC refrigerant. For this reason, with increasing interest in the global environment, such air conditioners that directly control the temperature and humidity of air have attracted attention. Hereinafter, an air conditioner that performs the above desiccant air conditioning will be described with reference to the drawings.

[0003] As shown in FIG.
Each component such as a dehumidifying rotor (f) and a sensible heat exchanger (g) is housed in a casing (a). An air supply passage (b) and an exhaust passage (c) are defined in the casing (a). When the fans (d, e) in the respective passages (b, c) are operated, outdoor air is sucked into the air supply passage (b) as air supply and supplied to the room, while the indoor air is supplied to the exhaust passage (c). Air is sucked in as exhaust gas and discharged outside the room.

The dehumidifying rotor (f) includes a dehumidifying agent and is driven to rotate. And the dehumidification rotor is connected to the air supply passage (b).
The dehumidifier is regenerated by contacting the air supply and dehumidifying the air supply while contacting the exhaust gas in the exhaust passage (c). The sensible heat exchanger (g) exchanges heat between the air supply in the air supply passage (b) and the exhaust gas in the exhaust passage (c).

The sensible heat exchanger (g) in the air supply passage (b)
A humidifier (h) is disposed downstream of the humidifier. This humidifier (h) cools by humidifying the supply air.
A humidifier (i) is disposed upstream of the sensible heat exchanger (g) in the exhaust passage (c). This humidifier (i)
Cools by humidifying the exhaust. A regeneration coil (j) is disposed between the sensible heat exchanger (g) and the dehumidification rotor (f) in the exhaust passage (c).
The regeneration coil (j) heats the exhaust gas by heat exchange with hot water or the like.

Next, the operation of the air conditioner will be described with reference to the psychrometric chart of FIG.

The outdoor air in the state at the point A is sucked into the air supply passage (b) as air supply. The supply air is dehumidified by the dehumidification rotor (f), the absolute humidity decreases due to the change in isenthalpy, the temperature rises, and the state changes from point A to point B. The supply air in the state at the point B is cooled by the sensible heat exchanger (g), and the temperature is reduced to the state at the point C. The supply air in the state of the point C is humidified by the humidifier (h), the absolute humidity increases due to a change in isenthalpy, the temperature decreases, and the state of the point C changes to the state of the point D. Then, the air supply in the state of the point D is supplied to the room.

On the other hand, the room air at the point E is sucked into the exhaust passage (c) as exhaust gas. This exhaust gas is humidified by the humidifier (i), the absolute humidity rises due to a change in isenthalpy, the temperature falls, and the state changes from the point E to the point F. The exhaust gas in the state at the point F is heated by the sensible heat exchanger (g), and the temperature rises to the state at the point G. The exhaust gas in the state at the point G is further heated by the regeneration coil (j), and the temperature rises to the state at the point H. The exhaust gas in the state at the point H regenerates the dehumidifier of the dehumidifying rotor (f), the absolute humidity rises due to a change in isenthalpy, the temperature decreases, and the state at the point H changes to the state at the point I. Then, the exhaust gas at the point I is discharged outside the room.

[0009]

In the above-described air conditioner, the humidity of the air supplied to the room is directly controlled, and the temperature of the air is also controlled by using air such as exhaust gas.
For this reason, there is a problem that it is difficult to improve the air-conditioning capacity due to the restriction of the condition of the supply air to the room, and it is not possible to sufficiently cope with the cooling load. This will be described with reference to FIG.

In order to increase the cooling capacity, the temperature at the point D, that is, the temperature of the air supplied to the room may be decreased. To do this, the temperature at point C, ie the air supply passage (b)
It is conceivable to lower the temperature at the outlet of the sensible heat exchanger (g). Here, the temperature at the point C is restricted by the temperature at the point F, that is, the temperature at the inlet of the sensible heat exchanger (g) in the exhaust passage (c). Since the temperature at the point F cannot be lower than the saturation state, the temperature at the point C cannot be lowered. On the other hand, if the humidification amount from the point C to the point D is increased, the temperature at the point D decreases. However, considering room comfort, the absolute humidity at point D cannot be increased.

Therefore, in order to improve the cooling capacity, the point C
It is necessary to increase the humidification amount from the point C to the point D after reducing the absolute humidity in the above. For this purpose, the amount of dehumidification from point A to point B, that is, the amount of inside air dehumidification in the dehumidification rotor (f) must be increased.

However, the performance of the dehumidifying agent of the dehumidifying rotor (f) is limited, and if the dehumidifying rotor (f) itself is enlarged, the size of the entire apparatus is increased. For this reason, it is difficult to increase the air conditioning capacity by improving the performance of the dehumidifying rotor (f). Further, when the amount of dehumidification in the dehumidification rotor (f) is increased, it is necessary to increase the amount of heating in the regeneration coil (j) in order to regenerate the dehumidifier. For this reason, although the air conditioning capacity increases, the energy consumption also increases.

[0013] The present invention has been made in view of the above points, and an object thereof is to achieve air conditioning without using an artificial synthetic refrigerant such as a CFC refrigerant.
In addition, it is an object of the present invention to provide an air conditioner capable of exhibiting a sufficient air conditioning capacity.

[0014]

The present invention combines so-called desiccant air conditioning with an air cycle.

More specifically, a first solution taken by the present invention is a dehumidifying means (60) for absorbing moisture from the first air and releasing it to the second air, and a first air from the dehumidifying means (60). (11) for dissipating heat to the second air and supplying the second air to the dehumidifying means (60), and humidifying cooling means (90) for cooling the first air from the heat radiating means (11) by humidification. It is intended for an air conditioner having the following. And the heat radiating means (11)
After the first air is compressed, heat is released to the second air and the air is expanded to perform an air cycle.

[0016] The second solution taken by the present invention is:
In the first solution, the dehumidifying means (60) has a humidity medium that absorbs and desorbs moisture by contact with air, and absorbs moisture in the first air with the humidity medium, It is configured to release moisture to the second air to continuously dehumidify the first air.

Further, a third solution taken by the present invention is:
In the second solving means, the humidity medium of the dehumidifying means (60) includes a solid adsorbent for adsorbing moisture.

Further, a fourth solution taken by the present invention is:
In the third solution, the humidity medium of the dehumidifying means (60) is formed in a disk shape so that air can pass in the thickness direction, and the rotor member (61) for bringing the passing air into contact with the solid adsorbent. On the other hand, the dehumidifying means (60) includes a moisture absorbing portion (62) in which the rotor member (61) contacts the first air to absorb moisture in the first air, and the rotor member (61) includes: A moisture release section (63) that contacts the second air and releases moisture to the second air, and the rotor member (61) moves between the moisture absorption section (62) and the moisture release section (63). And a drive mechanism for rotating and driving the rotor member (61).

The fifth solution taken by the present invention is:
In the second solving means, the humidity medium of the dehumidifying means (60) is constituted by a liquid absorbent for absorbing moisture.

[0020] A sixth solution taken by the present invention is:
In the fifth solution, the dehumidifying means (60) is provided with a first air of the heat radiating means (11) for discharging the liquid absorbent to the second air in order to release moisture absorbed from the first air to the second air. To heat.

[0021] A seventh solution taken by the present invention is:
In the fifth solution, the dehumidifying means (60) includes a moisture absorbing section (65) for bringing the liquid absorbent into contact with the first air and a moisture releasing section (66) for bringing the liquid absorbent into contact with the second air. And a circulation circuit (64) for circulating the liquid absorbent between the moisture absorbing section (65) and the moisture releasing section (66).

The eighth solution taken by the present invention is:
In the first solution, at least outdoor air is taken in as first air and the first air is supplied to the room, while at least room air is taken in as second air and the second air is discharged to the outside. Make up.

Further, a ninth solution taken by the present invention is as follows.
In the eighth solution, the outdoor air and the indoor air are taken in as first air.

According to a tenth aspect of the present invention, the heat radiating means (11) is provided by exchanging heat with all or a part of the compressed first air in the heat radiating means (11). Preheating means (33) for preheating the first air supplied to 11) is provided.

According to an eleventh aspect of the present invention, there is provided the humidifying pre-cooling means (41) according to the first aspect, wherein the second air is cooled by humidification and then supplied to the heat radiating means (11). It is provided.

According to a twelfth aspect of the present invention, in the first aspect, the heat radiating means (11) includes a heat exchanger (30) for exchanging heat between the first air and the second air. While using the second heat of the heat exchanger (30) to utilize the latent heat of vaporization of water for cooling the first air in the heat exchanger (30).
A water supply means (42) for supplying water to the air is provided.

A thirteenth aspect of the present invention is a hot water generating means (95) according to the first aspect, wherein the second air from the heat radiating means (11) heats the water to generate hot water. ) Is provided.

In the first solution, the first air dehumidified by the dehumidifier (60) is supplied to the heat radiator (11).
Supplied to The radiator (11) performs an air cycle using the dehumidified first air as a working fluid. At this time, the first air that has been compressed and has increased in temperature exchanges heat with the second air and radiates heat to the second air. The first air cooled by the heat exchange expands, the temperature decreases, and the humidifying cooling means (9)
Cooled at 0). Then, cooling is performed by supplying the low-temperature first air into the room. The dehumidifying means (60) releases moisture to the second air heated by the heat exchange in the heat radiating means (11). That is, the dehumidifying means (60) moves the moisture of the first air to the second air.

In the second solution, the dehumidifying means (60)
Of the first air absorbs moisture in the first air, while releasing the absorbed moisture to the second air. That is, the moisture in the first air moves to the second air via the humidity medium.

In the third solution, the humidity medium absorbs moisture by adsorbing moisture to the solid adsorbent. Also, the moisture medium releases moisture by desorbing moisture from the solid adsorbent.

In the fourth solution, the humidity medium is constituted by the disk-shaped rotor member (61). A part of the rotor member (61) contacts the first air at the moisture absorbing portion (62) to absorb moisture. The rotor member (61) is rotationally driven by the drive mechanism, and the portion of the rotor member (61) that has absorbed moisture moves to the moisture releasing section (63). In the moisture releasing section (63), the rotor member (61) contacts the second air to release moisture. Thus, the rotor member (61), which is a humidity medium, is regenerated. Thereafter, the regenerated portion of the rotor member (61) moves to the moisture absorbing portion (62) again, and repeats this operation.

In the fifth solution, the humidity medium absorbs moisture by absorbing the water into the liquid absorbent. The moisture medium releases moisture by desorbing moisture from the liquid absorbent.

[0033] In the sixth solving means, the heat radiating means (11)
The liquid absorbent absorbs moisture from the first air before being supplied to the first air. The liquid absorbent is heated by the first air whose temperature has been increased by being compressed by the heat radiating means (11), so as to be in a state where it is easy to release moisture, and to release moisture to the second air. This moisture release regenerates the liquid absorbent.

In the seventh solution, the liquid absorbent absorbs the moisture of the first air in the moisture absorbing section (65), and thereby the first air is dehumidified. This liquid absorbent is used in the circulation circuit (6
4) It flows inside and reaches the moisture release section (66). In the moisture release section (66), the liquid absorbent releases moisture to the second air, whereby the liquid absorbent is regenerated. The regenerated liquid absorbent is
After flowing through the circulation circuit (64), the flow reaches the moisture absorbing section (65) again, and this circulation is repeated.

In the eighth solution, at least outdoor air is taken in as first air, and at least room air is taken in as second air. The taken-in first air flows sequentially through the dehumidifying means (60), the heat radiating means (11), and the humidifying cooling means (90), and is cooled and supplied to the room. On the other hand, the taken-in second air exchanges heat with the first air by the heat radiating means (11), and is discharged outside the room. That is, in the heat radiating means (11), heat is exchanged between the outdoor air supplied to the room and the indoor air discharged to the room.

In the ninth solution, the mixed air of the outdoor air and the indoor air is taken in as the first air, and the first air is supplied to the room after being cooled.

[0037] In the tenth solution, the first air is preheated by the preheating means (33), and the temperature of the first air is increased by the preheating.
Air is supplied to the heat radiating means (11). In the heat radiating means (11), an air cycle is performed using the first air as a working fluid. At this time, the temperature of the compressed first air is higher than when the first air is not preheated. In addition, heat dissipation means (1
In 1), the first air radiates heat to the second air. Therefore, when the temperature of the compressed first air increases, the temperature of the second air from the heat radiating means (11) also increases.

In the eleventh solution, moisture is supplied to the second air by the humidification pre-cooling means (41), and the second air is cooled by evaporation of the moisture. The cooled second air is supplied to the heat radiating means (11) and exchanges heat with the first air.

In the twelfth solving means, the heat radiating means (1
In the heat exchanger (30) of 1), the first air and the second air exchange heat. That is, heat is radiated from the first air to the second air in the heat exchanger (30). At this time, the water supply means (4
According to 2), moisture is supplied to the second air in the heat exchanger (30). In the heat exchanger (30), while the second air exchanges heat with the first air, moisture evaporates in the second air. Then, the latent heat of evaporation of the water is used for cooling the first air.

In the thirteenth solution means, the hot water generating means (95) heats the water with the second air which has been radiated from the first air by the radiating means (11) and whose temperature has risen. That is, the energy of the second air is used for generating hot water.

[0041]

According to the above solution, the heat radiating means (1
Since the first air cooled by heat exchange with the second air in (1) is further expanded, the temperature of the first air can be reduced as compared with the case where heat is simply exchanged with the second air. Therefore, without increasing the humidification amount in the humidification cooling means (90), it is possible to reduce the temperature of the first air while maintaining the absolute humidity of the first air at the time of being supplied indoors to a certain value or less. It becomes possible. As a result, the temperature of the first air can be further reduced, and the air conditioning capacity can be improved.

Further, in the heat radiating means (11), the first air which has been dehumidified and then compressed and further raised in temperature exchanges heat with the second air. For this reason, compared with the case where the first air after the dehumidification is simply exchanged with the second air, the heat radiating means (11)
From the second air can be increased. As a result, the dehumidifying means (6
0) is dehumidified, and the dehumidification from the dehumidifying means (60) can be reliably performed.

Therefore, according to the above-mentioned solution, it is possible to exert a sufficient air-conditioning capacity while directly operating the temperature and humidity of the first air without using an artificial synthetic refrigerant such as a chlorofluorocarbon refrigerant.

According to the second to seventh solutions, the structure of the dehumidifying means (60) can be embodied by using a humidity medium such as a solid adsorbent or a liquid absorbent.

In the eighth and ninth solutions, the outdoor air is taken in and supplied to the room, and the room air is taken in and discharged outside the room. Therefore, according to the present solution, ventilation can be performed in addition to cooling. Further, in the radiating means (11), since the indoor air as the second air and the outdoor air as the first air exchange heat, it is possible to recover cold energy from the indoor air discharged for ventilation, and to reduce the energy associated with the ventilation. Loss can be reduced.

According to the tenth solution, the temperature of the second air from the heat radiator (11) can be increased. In other words, the temperature of the second air released from the dehumidifying means (60) can be increased, whereby the dehumidifying means (6
The moisture release from 0) can be reliably performed.

According to the eleventh and twelfth solving means, the first air can be cooled to a lower temperature in the heat radiating means (11) by supplying moisture to the second air. Therefore, the compression ratio in the air cycle can be reduced, and the power required for compression can be reduced while maintaining the refrigerating capacity, so that the COP (coefficient of performance) can be improved.

According to the thirteenth solution, the second air whose temperature has been raised by the heat radiating means (11) is not discharged as it is, but hot water is generated by the second air to effectively use energy. can do.

[0049]

Embodiment 1 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the air conditioner (10) of this embodiment includes a cycle section (11) as a heat radiating means, a dehumidifying mechanism (60) as a dehumidifying means, and a humidifying means as a humidifying cooling means. A cooler (90) is provided and configured to perform cooling. The cycle unit (11) includes a first system (20),
It is composed of a second system (40).

The first system (20) includes a compressor (21),
The heat exchanger (30) and the expander (22) are sequentially duct-connected, and are configured so that the first air flows to perform an air cycle operation. The first system (20) includes a compressor (2
A first inlet duct (23) connected to the inlet side of 1) and a first outlet duct (24) connected to the outlet side of the expander (22).
And The first inlet duct (23) is branched at one end into an outdoor branch duct (25) and an indoor branch duct (26). This outdoor branch duct (25) opens outside the room,
The indoor branch duct (26) is open indoors. And
The first inlet duct (23) takes in outdoor air from the outdoor branch duct (25) and room air from the indoor branch duct (26) as first air. One end of the first outlet duct (24) opens into the room and guides the low-temperature first air from the expander (22) into the room.

The second system (40) is configured such that a second inlet duct (43) is connected to the inlet side of the heat exchanger (30) and a second outlet duct (44) is connected to the outlet side. . The second inlet duct (43) has one end open to the room and takes in room air as second air. One end of the second outlet duct (44) opens outside the room, and discharges the high-temperature second air from the heat exchanger (30) outside the room.

A motor (35) is connected to the compressor (21). The compressor (21) is connected to the expander (22). The compressor (21) is driven by the driving force of the motor (35) and the expansion work when air is expanded by the expander (22).

In the heat exchanger (30), the heat radiation side passage (3)
1) and a heat absorbing side passage (32) are defined. One end of the heat radiation side passage (31) is duct-connected to the compressor (21), and the other end is duct connected to the expander (22), and the first air flows through the inside. One end of the heat-absorbing side passageway (32) is connected to the second inlet duct (43), and the other end thereof is connected to the second outlet duct (44), through which the second air flows. The heat exchanger (30) is configured to exchange heat between the first air in the heat radiation side passageway (31) and the second air in the heat absorption side passageway (32). That is, the first air radiates heat to the second air in the heat exchanger (30).

The heat exchanger (30) has a water inlet (4).
2) is provided. The water introduction section (42) is provided with a moisture-permeable membrane through which moisture can pass. A water-side space is formed on one of the moisture-permeable membranes, and the opposite side of the water-side space across the moisture-permeable membrane is heated. It is configured in the heat absorption side passageway (32) of the exchanger (30).
A water pipe (50) is connected to the water side space, and tap water or the like is supplied to the inside thereof. And in the water introduction section (42)
Water in the water-side space permeates through the moisture-permeable membrane and is supplied to the second air in the heat-absorbing-side passage (32).

As described above, the water introduction section (42) supplies moisture to the second air in the heat absorption side passage (32). Therefore, in the heat absorbing side passage (32), the second air exchanges heat with the first air and is heated, and at the same time, moisture evaporates in the second air. Thereby, the temperature rise of the second air is suppressed, and the temperature difference between the second air and the first air is secured. In other words, the water introduction part (42) constitutes a water supply unit that supplies water to the second air in order to utilize the latent heat of evaporation for cooling the first air.

A humidifying precooler (41) is provided in the second inlet duct (43) in the second system (40). The humidifying precooler (41) is provided with a moisture-permeable membrane through which moisture can pass, and an air-side space and a water-side space are defined by the moisture-permeable membrane. The air side space is second
An inlet duct (43) is connected, through which the second air flows. A water pipe (50) is connected to this water side space,
Tap water or the like is supplied into the inside. Then, in the humidifying pre-cooler (41), the moisture in the water-side space passes through the moisture-permeable membrane and is supplied to the second air in the air-side space, and the supplied moisture evaporates in the second air. The air is cooled.

A humidifying cooler (90) is provided in the first outlet duct (24) in the first system (20). The humidifying cooler (90) is similar to the humidifying precooler (41),
An air-side space and a water-side space are defined and formed, while having a moisture-permeable membrane. A first outlet duct (24) is connected to the air-side space of the humidifying cooler (90), and the inside of the first outlet duct (24) is connected to the first outlet duct (24).
Air flows. A water pipe (50) is connected to the water side space, and tap water and the like are supplied to the inside thereof. Then, in the humidification cooler (90), the moisture in the water-side space permeates through the moisture-permeable membrane and is supplied to the first air in the air-side space, and the supplied moisture evaporates in the first air, whereby the first moisture is evaporated. The air is cooled.

The dehumidifying mechanism (60) is provided in the first inlet duct (23) and the second outlet duct (44). The dehumidifying mechanism (60) includes a rotor member (61), a moisture absorbing section (62), and a moisture releasing section (63), and is configured similarly to a so-called rotary type dehumidifier.

The rotor member (61) is formed in a disk shape and allows air to pass in the thickness direction. The rotor member (61) includes a solid adsorbent for adsorbing moisture, and constitutes a humidity medium for bringing passing air into contact with the solid adsorbent. Although not shown, a drive motor, which is a drive mechanism, is connected to the rotor member (61), and is rotatably driven by the drive motor to move between the moisture absorbing section (62) and the moisture releasing section (63). The solid adsorbent of the rotor member (61) is mainly composed of a porous inorganic compound. As the inorganic compound, those having a pore diameter of about 0.1 to 20 nm and adsorbing moisture are selected.

The moisture absorbing section (62) is connected to the first inlet duct (2
It is located in the middle of 3). In the moisture absorbing section (62), the first
The first air in the inlet duct (23) passes through the rotor member (61), and the moisture in the first air is adsorbed by the solid adsorbent of the rotor member (61). Thereby, the first air is dehumidified.

The moisture release section (63) is connected to the second outlet duct (4
It is located in the middle of 4). In the moisture release section (63), the second
The second air in the outlet duct (44) passes through the rotor member (61), and the water adsorbed by the solid adsorbent of the rotor member (61) is desorbed and released into the second air. by this,
The solid sorbent is regenerated.

As described above, the rotor member (61) is driven by the drive motor and moves between the moisture absorbing section (62) and the moisture releasing section (63). Then, the portion of the rotor member (61) that has absorbed moisture from the first air in the moisture absorbing section (62) moves to the moisture releasing section (63) with the rotation of the rotor member (61). In the moisture release section (63), moisture is desorbed from the solid adsorbent of the rotor member (61) and is regenerated. That is, the rotor member (61) releases moisture to the second air. Thereafter, the regenerated portion of the rotor member (61) moves to the moisture absorbing section (62) again. By repeating the above operation, the dehumidifying mechanism (60) continuously dehumidifies the first air.

-Operation- Next, the operation of the air conditioner (10) will be described with reference to the psychrometric chart of FIG.

In the first system (20), the outdoor air at the point K is taken in from the outdoor branch duct (25), and the room air at the point G is taken in from the indoor branch duct (26).
The outdoor air and the indoor air merge in the first inlet duct (23) to form the mixed air at the point A. That is, in the first system (20), the mixed air in the state of the point A including the outdoor air and the indoor air is taken in as the first air. The first air is supplied to the rotor member (61) at the moisture absorbing portion (62) of the dehumidifying mechanism (60).
, The absolute humidity decreases due to the change in isenthalpy, the temperature rises, and the state changes from point A to point B.

The first air in the state at the point B is compressed by the compressor (21), and the temperature and the pressure increase while the absolute humidity is kept constant, and the state at the point C is reached. The first air in the state at the point C enters the heat exchanger (30), flows through the heat radiation side passageway (31), and exchanges heat with the second air in the heat absorption side passageway (32). The first air is cooled by this heat exchange, and the temperature drops at a constant absolute humidity to be in the state of point D. The first air in the state at the point D is expanded by the expander (22), and the temperature and the pressure decrease while the absolute humidity is kept constant, and the state at the point E is reached.

The first air in the state at the point E is supplied to the humidifying cooler (9).
0). In the humidification cooler (90), moisture is supplied to the first air, and the supplied moisture evaporates in the first air.
The absolute humidity of the first air increases due to the change in isenthalpy, and the temperature of the first air decreases. Thereafter, the first air in the state at the point F is supplied into the room through the first outlet duct (24).

In the second system (40), the room air in the state at the point G is taken in from the second inlet duct (43) as the second air. This second air flows into the humidifying precooler (41).
In the humidifying precooler (41), moisture is supplied to the second air, and the supplied moisture evaporates in the second air. Then, the second air changes in temperature from the state of point G to the state of point H from an increase in absolute humidity due to a change in isenthalpy. The second air in the state at the point H enters the heat exchanger (30), flows through the heat absorbing side passageway (32), and exchanges heat with the first air in the heat dissipation side passageway (31). During that time, moisture is supplied to the second air in the water inlet (42) of the heat exchanger (30), and the supplied moisture evaporates in the second air. Then, the absolute humidity and the temperature of the second air rise and the state of the point H changes from the state of the point H to the state of the point I.

The second air in the state at the point I passes through the second outlet duct (44) and enters the dehumidifying section (63) of the dehumidifying mechanism (60).
In the moisture releasing section (63), the second air comes into contact with the rotor member (61), and the rotor member (61) releases moisture to the second air. As a result, the absolute humidity of the second air rises due to the change in isenthalpy, and the temperature of the second air falls. The second air in the state at the point J is again discharged outside through the second outlet duct (44).

In the dehumidifying mechanism (60), the rotor member (61) is driven to rotate. Then, the rotor member (61) moves between the moisture absorbing portion (62) and the moisture releasing portion (63), and the moisture absorbing portion (62)
And the moisture release in the moisture release section (63) are repeated.

-Effects of First Embodiment- In the first embodiment, the heat exchanger (30) of the cycle section (11)
, The first air that has exchanged heat with the second air is further expanded by the expander (22). For this reason, the temperature of the first air at the inlet of the humidifier / cooler (90) can be reduced as compared with the conventional desiccant air conditioning. Specifically, the temperature of the first air at the inlet of the humidifying cooler (90) (point E) can be lower than the temperature of the second air at the inlet of the heat exchanger (30) (point H). As a result, the temperature of the first air (point F) when supplied to the room can be further reduced without increasing the absolute humidity of the first air (point F), and the air conditioning performance can be improved.

In the cycle section (11), the first air (point C), which has been dehumidified and then compressed and further heated, flows into the heat exchanger (30). That is, in the heat exchanger (30), the first air having a higher temperature exchanges heat with the second air as compared with the conventional desiccant air conditioning. Therefore, the temperature (point I) of the second air at the outlet of the heat exchanger (30) can be increased as compared with the related art. For this reason, the temperature (point I) of the second air at the inlet of the dehumidifying section (63) can be maintained without separately heating as in the related art, and the rotor member (6) can be maintained.
The solid adsorbent of 1) can be reliably regenerated.

In this embodiment, the first air is a mixture of outdoor air and indoor air. Here, at the time of ventilation, the amount of air supplied from the outside to the room must be equal to the amount of air discharged from the room to the outside. On the other hand, since the mixed air is the first air, the flow rate of the first air can be set to be larger than the flow rate of the second air. As a result, not only can the temperature of the first air supplied into the room be lowered, but also the air conditioning capacity can be increased by increasing the flow rate of the first air.

On the other hand, as described above, the flow rate of the first air
If the flow rate is larger than the flow rate of the air, the heat capacity of the second air may be insufficient, and the cooling of the first air in the heat exchanger (30) may be insufficient. On the other hand, in the present embodiment, the humidifying precooler (41) and the water introduction part (42) are provided to supply moisture to the second air. For this reason, the shortage of the heat capacity of the second air can be compensated for by the latent heat of vaporization of water, and even when the flow rate of the first air is larger than the flow rate of the second air, the heat in the heat exchanger (30) can be reduced. The cooling of the first air can be sufficiently performed.

[0075]

[Embodiment 2] In Embodiment 2 of the present invention, a preheater (33) as a preheating means is provided in Embodiment 1 and the heat exchanger (30) is connected to a first heat exchange section (30a). And a second heat exchange section (30b). Hereinafter, a configuration different from the first embodiment will be described.

As shown in FIG. 3, the first heat exchanging section (30a) and the second heat exchanging section (30b) of the heat exchanger (30) have a heat-radiating side passage (31) and a heat-absorbing side passage ( 32). The heat radiation side passageway (31) is connected to the compressor (21) on the first heat exchange part (30a) side and connected to the expander (22) on the second heat exchange part (30b) side. The heat-absorbing side passageway (32) is connected to the second inlet duct (43) on the side of the second heat exchange section (30b), and connected to the second outlet duct (44) on the side of the first heat exchange section (30a). I have.

The preheater (33) is provided in the first heat exchange section (30).
a) and the second heat exchange section (30b), and connected to the heat radiation side passageway (31) of both heat exchange sections (30a, 30b).
Further, a first inlet duct (23) from the dehumidifying mechanism (60) to the compressor (21) is connected to both ends of the preheater (33). The preheater (33) converts the first air dehumidified by the dehumidification mechanism (60) and sent to the compressor (21) to the compressor (21).
It heats by the heat exchange with the 1st air which was compressed and became high temperature.

-Operating Operation- In the present embodiment, the cooling operation is performed by operating in substantially the same manner as in the second embodiment. However, in the present embodiment, the dehumidified first air is supplied to the compressor (21) after passing through the preheater (33).

Specifically, the moisture absorbing section (62) of the dehumidifying mechanism (60)
The first air dehumidified in the above enters the preheater (33) through the first inlet duct (23). In the preheater (33), the first air entered from the first inlet duct (23) exchanges heat with the first air compressed by the compressor (21) and is heated. Heated first
The air flows again through the first inlet duct (23) and the compressor (2
Supplied to 1).

That is, the dehumidified first air enters the compressor (21) after being preheated by the preheater (33). Accordingly, in the present embodiment, the temperature of the first air at the inlet of the compressor (21) is higher than the state at the point B in FIG. 2, and accordingly, the temperature of the first air at the outlet of the compressor (21) is accordingly increased. Also, the temperature becomes higher than the state at the point C in FIG.

This means that the first heat exchanger (30) inlet
This means that the temperature of the air is higher than in the first embodiment. Therefore, in the heat exchanger (30), the second air exchanges heat with the first air having a higher temperature, and the temperature of the second air at the outlet of the heat exchanger (30) is the point I in FIG. Higher than the state. The second air exiting the heat exchanger (30)
Dehumidifying part (6) of the dehumidifying mechanism (60) through the outlet duct (44)
3), the rotor member (61) releases moisture to the second air. In other words, the higher temperature second air is supplied to the moisture release section (63)
Contacts the rotor member (61).

Here, the first air at the inlet of the heat exchanger (30) has a higher temperature than in the first embodiment, but this first air is supplied to the first heat exchange section (30a) of the heat exchanger (30). In addition to the heat exchange with the second air in the second heat exchange section (30b), the preheater (3
Heat exchange is performed with the first air before being compressed in 3).
Accordingly, the temperature of the first air at the outlet of the heat exchanger (30), that is, at the inlet of the expander (22) is equal to that of the first embodiment, and the cooling capacity is secured to be equal to that of the first embodiment.

-Effects of Second Embodiment- According to the second embodiment, the following effects can be obtained in addition to the effects of the first embodiment. That is, the higher-temperature second air can be brought into contact with the solid adsorbent of the rotor member (61), and the solid adsorbent can be reliably regenerated. Further, even when the flow rate of the second air is smaller than the flow rate of the first air as in the present embodiment, the solid adsorbent can be reliably regenerated by raising the temperature of the second air.

-Modification of Second Embodiment- In the present embodiment, the preheater (33) may be arranged as follows.

As shown in FIG. 4, in this modification, a first inlet duct (23) from the dehumidifying mechanism (60) to the compressor (21) is connected to both ends of the preheater (33). This is the same as in the above embodiment. On the other hand, in the present modification, the compressor (21)
Divides the first air compressed by the preheater (3
Guide to 3) and send the rest to the heat exchanger (30). Then, in the preheater (33), the first air before being compressed is heated by exchanging heat with a part of the compressed first air. Preheater (3
The first air heated in 3) is supplied to the compressor (21). The first air after compression coming out of the preheater (33) is
The heat is guided to the heat-radiation side passageway (31) of the heat exchanger (30), and merges with the first air directly entering the heat exchanger (30) from the compressor (21).

[0086]

Third Embodiment A third embodiment of the present invention is different from the first embodiment in that a hot water heat exchanger (95) as a hot water generating means is provided. Hereinafter, a configuration different from the first embodiment will be described.

As shown in FIG. 5, the hot water heat exchanger (9
5) The dehumidifying mechanism (60) in the second outlet duct (44)
Is provided on the downstream side. The hot water heat exchanger (95)
A hot water supply pipe (55) through which water flows is connected.
And the hot water heat exchanger (95) is connected to the second outlet duct (44).
The heat is exchanged between the second air from the water and the water from the hot water supply pipe (55), and the water is heated by the second air. The second air exiting the hot water heat exchanger (95) is
The air is discharged outside through the outlet duct (44). The water heated by the hot water heat exchanger (95) is supplied through a hot water supply pipe (55). When the amount of heating in the hot water heat exchanger (95) is insufficient, reheating may be performed by a boiler or the like.

That is, in this embodiment, the second air having a relatively high temperature in the second outlet duct (44) is not discharged to the outside of the room as it is, but the hot water supply pipe is utilized by utilizing the energy of the second air. The water in (55) is heated.
Therefore, the energy of the discharged second air can be effectively used.

[0089]

Other Embodiments of the Invention-First Modification-In each of the above embodiments, a dehumidifying mechanism (6
Although 0) is configured, the dehumidifying mechanism (60) may be configured by using a liquid absorbent instead. Hereinafter, the dehumidifying mechanism (60) using the liquid absorbent will be described by taking as an example a case where the dehumidifying mechanism (60) is applied to the first embodiment.

As shown in FIG. 6, the dehumidifying mechanism (60) of the present modification comprises a moisture absorbing section (65), a moisture releasing section (66), and a pump (67).
Are sequentially connected by a liquid pipe (68). The circulation circuit (64) is filled with an aqueous solution of a metal halide as a liquid absorbent. Such metal halides include LiCl, LiBr,
CaCl _{2 and the} like are exemplified. The liquid absorbent may be an aqueous solution of a hydrophilic organic compound. Examples of this type of organic compound include ethylene glycol, glycerin, and a water absorbing resin.

The moisture absorbing section (65) is connected to the first inlet duct (2
It is located in the middle of 3). The moisture absorbing section (65) is provided with a hydrophobic porous membrane through which moisture can pass, and an air-side space and a liquid-side space are defined by the hydrophobic porous membrane. A first inlet duct (23) is connected to the air side space, through which the first air flows. A liquid pipe (68) is connected to the liquid side space, and a liquid absorbent flows through the inside thereof. Then, in the moisture absorbing section (65), the first air in the air-side space and the liquid absorbent in the liquid-side space come into indirect contact with each other via the hydrophobic porous membrane, and the water contained in the first air becomes hydrophobic. It passes through the porous membrane and is absorbed by the liquid absorbent. That is, the first air is dehumidified in the moisture absorbing section (65).

The moisture release section (66) has the same configuration as the moisture absorption section (65), and is arranged in the middle of the second outlet duct (44). That is, the moisture release section (66) includes the hydrophobic porous membrane, and defines the air-side space and the liquid-side space. A second outlet duct (44) is connected to the air side space,
The second air flows through the inside. Liquid piping (6
8) is connected, and the liquid absorbent flows inside. Then, in the moisture release section (66), the second air in the air-side space and the liquid absorbent in the liquid-side space come into indirect contact via the hydrophobic porous membrane, and the water in the liquid absorbent is desorbed and removed. 2 Move to air. That is, in the moisture release section (66), the liquid absorbent is regenerated.

In the circulation circuit (64), the liquid absorbent is circulated inside by the pump (67), whereby the first air is continuously dehumidified. That is, the liquid absorbent that has absorbed the moisture in the first air at the moisture absorbing section (65) is supplied to the liquid pipe (6).
Flow through 8) and enter the moisture release section (66). In the dehumidifying section (66),
The liquid absorbent is heated and releases moisture to the second air. Thereby, the liquid absorbent is regenerated. The regenerated liquid absorbent flows through the liquid pipe (68), enters the moisture absorbing section (65) again, and repeats this circulation.

-Second Modification- This modification is a modification of the first modification, in which the moisture release section (66) is used.
The arrangement of is changed. Other configurations are the same as those of the first modification.

As shown in FIG. 7, the moisture releasing section (6
6) is provided in the heat exchanger (30). The moisture release section (6
6) is provided with a hydrophobic porous membrane permeable to moisture,
A liquid-side space is formed on one side of the hydrophobic porous membrane, and the opposite side of the liquid-side space across the hydrophobic porous membrane is a heat exchanger (30).
Of the heat-absorbing side passage (32). A liquid pipe (68) is connected to the liquid side space, and a liquid absorbent flows through the inside thereof. In the moisture release section (66), the liquid absorbent in the liquid-side space is heated by exchanging heat with the second air in the heat-absorbing passage (32), and at the same time, the liquid absorbent in the liquid-side space and the heat-absorbing passage are heated. (32)
Indirectly contacts the second air through the hydrophobic porous membrane,
The water contained in the liquid absorbent permeates through the hydrophobic porous membrane and moves to the second air.

Third Modification In each of the above embodiments, the mixed air of the outdoor air and the room air is taken in as the first air and supplied to the room from the first outlet duct (24), while the room air is supplied to the room. 2 The air is taken in and discharged from the second outlet duct (44) to the outside of the room to perform a cooling operation. On the other hand, the cooling operation may be performed as follows.

First, outdoor air is taken in as first air and supplied to the room from the first outlet duct (24), while room air is taken in as second air and taken into the second outlet duct (44).
From the outside of the room.

Further, the outdoor air is taken in as the first air and supplied to the room from the first outlet duct (24), while the outdoor air is taken in as the second air and the second outlet duct (44).
From the outside of the room.

Also, the room air is taken in as the first air and supplied to the room from the first outlet duct (24), while the room air is taken in as the second air and the second outlet duct (44).
From the outside of the room.

Further, indoor air is taken in as first air and supplied to the room through the first outlet duct (24), while outdoor air is taken in as second air and taken into the second outlet duct (44).
From the outside of the room.

Also, a mixed air of outdoor air and indoor air is taken in as first air and supplied to the room from the first outlet duct (24), while outdoor air is taken in as second air and taken into the second outlet duct (44). From the outside of the room.

Further, the mixed air of the outdoor air and the indoor air is taken in as the first air and supplied to the room through the first outlet duct (24), while the mixed air of the outdoor air and the indoor air is supplied to the second air.
The air may be taken in and discharged from the second outlet duct (44) to the outside of the room.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram illustrating a configuration of an air-conditioning apparatus according to Embodiment 1.

FIG. 2 is an air line diagram showing an operation of the air-conditioning apparatus according to Embodiment 1.

FIG. 3 is a schematic configuration diagram illustrating a configuration of an air-conditioning apparatus according to Embodiment 2.

FIG. 4 is a schematic configuration diagram illustrating a configuration of an air conditioner according to a modified example of Embodiment 2.

FIG. 5 is a schematic configuration diagram illustrating a configuration of an air-conditioning apparatus according to Embodiment 3.

FIG. 6 is a schematic configuration diagram illustrating a configuration of an air conditioner according to another embodiment (first modification).

FIG. 7 is a schematic configuration diagram illustrating a configuration of an air-conditioning apparatus according to another embodiment (second modification).

FIG. 8 is a schematic configuration diagram illustrating a configuration of a conventional air conditioner that performs desiccant air conditioning.

FIG. 9 is an air line diagram showing an operation of a conventional air conditioner performing desiccant air conditioning.

[Explanation of symbols]

 (11) Cycle section (radiation means) (30) Heat exchanger (33) Preheater (preheating means) (41) Humidification precooler (humidification precooling means) (42) Water introduction section (moisture supply means) (60) Dehumidification Mechanism (humidifying means) (61) Rotor member (62) Moisture absorbing section (63) Moisture releasing section (64) Circulation circuit (65) Moisture absorbing section (66) Humidifying section (90) Humidifying cooler (humidifying cooling means) (95 ) Hot water heat exchanger (Hot water generation means)

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Yuji Watanabe 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries Inside Kanaoka Plant of Sakai Seisakusho Co., Ltd. (72) Manabu Yoshimi 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries, Ltd. Inside the Sakai Plant Kanaoka Plant (72) Inventor Kazuo Yonemoto 1304 Kanaokacho, Sakai City, Osaka Daikin Industries Inside the Sakai Plant Kanaoka Plant F term (reference) 3L053 BC08 BC09

Claims (13)

[Claims] 1. A dehumidifying means (60) for absorbing moisture from the first air and releasing the moisture to the second air, and radiating the first air from the dehumidifying means (60) to the second air, thereby dissolving the second air. An air conditioner comprising: a heat dissipating means (11) for supplying to the dehumidifying means (60); and a humidifying cooling means (90) for cooling the first air from the heat dissipating means (11) by humidification. ) Is an air conditioner configured to perform an air cycle of compressing the first air and then releasing heat to the second air to expand the first air. 2. The air conditioner according to claim 1, wherein the dehumidifying means (60) has a humidity medium for absorbing and releasing moisture by contact with air, and the moisture in the first air is converted to the humidity medium. An air conditioner configured to absorb moisture while releasing moisture of a humidity medium into the second air to continuously dehumidify the first air. 3. The air conditioner according to claim 2, wherein the humidity medium of the dehumidifying means (60) includes a solid adsorbent for adsorbing moisture. 4. The air conditioner according to claim 3, wherein the humidity medium of the dehumidifying means (60) is formed in a disc-like shape so that air can pass in the thickness direction and passes through the air and the solid adsorbent. The dehumidifying means (60) comprises a rotor member (61) to be brought into contact with the rotor member (61); A moisture releasing section (63) in which the rotor member (61) comes into contact with the second air to release moisture to the second air; and a rotor element (61) comprising a moisture absorbing section (62) and a moisture releasing section (63). And a drive mechanism for rotationally driving the rotor member (61) so as to move between them. 5. The air conditioner according to claim 2, wherein the humidity medium of the dehumidifying means (60) is made of a liquid absorbent that absorbs moisture. 6. The air conditioner according to claim 5, wherein the dehumidifying means (60) dissipates the liquid absorbent to release the moisture absorbed by the liquid absorbent from the first air to the second air. (11) The air conditioner configured to be heated by the first air. 7. The air conditioner according to claim 5, wherein the dehumidifying means (60) contacts the moisture absorbing portion (65) for bringing the liquid absorbent into contact with the first air, and the liquid absorbing agent and the second air. An air conditioner comprising a circulation circuit (64) having a moisture release section (66) for circulating a liquid absorbent between the moisture absorption section (65) and the moisture release section (66). 8. The air conditioner according to claim 1, wherein at least outdoor air is taken in as the first air.
While supplying air to the room, at least room air is supplied to the second
An air conditioner configured to take in the air and discharge the second air to the outside of the room. 9. The air conditioner according to claim 8, wherein the outdoor air and the room air are taken in as the first air. 10. The air conditioner according to claim 1, wherein the first air supplied to the heat radiating means (11) by heat exchange with all or a part of the compressed first air in the heat radiating means (11). An air conditioner including a preheating means (33) for preheating. 11. The air conditioner according to claim 1, further comprising humidifying pre-cooling means (41) for cooling the second air by humidification and supplying the cooled second air to the heat radiating means (11). 12. The air conditioner according to claim 1, wherein the heat radiating means (11) is provided with a heat exchanger (30) for exchanging heat between the first air and the second air, while the heat exchanger (30) is provided. An air conditioner comprising a water supply means (42) for supplying water to the second air of the heat exchanger (30) in order to utilize the latent heat of evaporation of water for cooling the first air in (1). 13. The air conditioner according to claim 1, further comprising hot water generating means (95) for heating water with the second air from the heat radiating means (11) to generate hot water.