JPH1144439A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a facility cost by decreasing an installation space by regulating humidity by liquid absorber and simultaneously regulating temperature. SOLUTION: The air conditioner comprises an absorber circuit 20 having an indoor heat exchanger 21 for transferring steam between indoor air and liquid absorber via a humidity permeable film, and an outdoor heat exchanger 22 for transferring steam between the outdoor air and the absorber via the film. Further, the conditioner also comprises a heat source circuit 30 having an indoor side heat exchanger 35 for heat exchanging with indoor air, and an outdoor side heat exchanger 33 for heat exchanging with outdoor air to circulate refrigerant. The exchangers 21, 35 regulate humidity in the indoor air and regulate temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a liquid absorbent for controlling humidity and temperature.

[0002]

2. Description of the Related Art Conventionally, a humidity control apparatus has been disclosed in Japanese Patent Laid-Open No. 5-146.
As disclosed in Japanese Unexamined Patent Publication No. 627, there is an apparatus provided with an absorbent circuit in which a liquid absorbent composed of an aqueous solution of lithium chloride circulates. The absorbent circuit is configured such that a dehumidifying unit and a regenerating unit are connected via a communication unit, and the dehumidifying unit is configured such that room air and the liquid absorbent exchange water vapor via a moisture permeable membrane. On the other hand, the regenerating section is configured such that the outdoor air and the liquid absorbent exchange water vapor via the moisture permeable membrane.

In the dehumidifying operation of the dehumidifying device, as shown in FIG. 15, dehumidification is performed between room air at point A and liquid absorbent at point C in a dehumidifying section. That is, the high-concentration liquid absorbent is cooled by the room air, and when the water vapor partial pressure (saturated vapor pressure) drops to the point C, the water vapor partial pressure of the room air increases, and the moisture (water vapor) of the room air is reduced. Absorbed by the liquid absorbent, the liquid absorbent becomes a low concentration liquid absorbent.

On the other hand, in the regeneration of the liquid absorbent, dehumidification is performed between the outdoor air at point B and the liquid absorbent at points EF in the regeneration section. That is, the low-concentration liquid absorbent that has absorbed the moisture is heated by the outdoor air, and when the water vapor partial pressure (saturated vapor pressure) increases to the point E, the water vapor partial pressure of the outdoor air decreases, and the liquid absorbent is removed. Moisture (water vapor) is released to the outdoor air, and the liquid absorbent is regenerated into a high-concentration liquid absorbent at point F.

[0005] Then, the high-concentration liquid absorbent moves to the dehumidifying section again as described above, is cooled to the point C, absorbs the moisture of the room air, and repeats this circulation operation to dehumidify the room.

Further, some of the above dehumidifiers are provided with an evaporator and a condenser in the communicating portion.
The dehumidifier cools the liquid absorbent flowing to the dehumidifying section by the evaporator, and heats the liquid absorbent flowing to the regenerating section by the condenser. As a result, the water vapor partial pressure of the liquid absorbent is surely lowered and raised, that is, the liquid absorbent is moved to the position shown in FIG.
While being surely lowered to the point C shown in FIG. 5, it is surely raised to the points EF to ensure that the absorption and release of moisture are performed reliably.

[0007]

However, in the above-mentioned dehumidifier, since only the indoor humidity is adjusted, a separate temperature controller such as an air conditioner is installed in order to control the temperature. There was a problem that had to be done.

Therefore, the conventional dehumidifier is, for example,
Room air cannot be cooled, and in order to perform indoor cooling, it is necessary to install a separate cooling device,
Even in a dehumidifier provided with an evaporator, it is necessary to separately install a cooling device since the liquid absorbent does not significantly change the sensible heat.

As a result, when performing air conditioning in which the temperature and humidity of a room are controlled simultaneously, a dehumidifier and a temperature controller must be installed, respectively, and a large installation space is required. , There is a problem that equipment costs are increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has been made to reduce the installation space and the equipment cost by controlling the temperature simultaneously with the humidity control by the liquid absorbent. It is the purpose.

[0011]

[Means for Solving the Problems]

-Summary of the invention-The present invention provides an indoor exchanger (21) for exchanging water vapor between indoor air and a liquid absorbent through a moisture permeable membrane, and a moisture exchanger between an outdoor air and a liquid absorbent. An absorbent circuit (20) including an outdoor exchanger (22) for exchanging water vapor through a membrane is provided. In addition, an indoor heat exchanger (35) that exchanges heat with indoor air, and an outdoor heat exchanger (33) that exchanges heat with outdoor air
And a heat source circuit (30) for circulating the refrigerant. And the indoor exchanger (21) and the indoor heat exchanger (35)
Controls the humidity and the temperature of the indoor air.

-Solution Means- Specifically, as shown in FIG. 1, the means according to the first aspect of the present invention comprises a closed circuit in which a liquid absorbent is filled and the liquid absorbent circulates. And water vapor is exchanged between the first air and the liquid absorbent through the moisture permeable membrane to cause the first air
It has a humidity exchanger (21) for adjusting the humidity of air and a regeneration exchanger (22) for exchanging water vapor between the second air and the liquid absorbent through a moisture permeable membrane to regenerate the liquid absorbent. An absorbent circuit (20) is provided in which the humidity exchanger (21) and the regeneration exchanger (22) are connected by a circulation passage (24). In addition, the first humidity controller (21) adjusts the humidity.
A temperature control heat exchanger (35) for exchanging heat with air to control the temperature of the first air is provided.

According to the first aspect of the present invention, in the first aspect of the invention, the liquid absorbent circulates in the absorbent circuit (20), and the liquid absorbent is, for example, at a low temperature and a partial pressure of steam (saturated steam). The high-pressure liquid absorbent having a reduced pressure flows into the humidity exchanger (21), and absorbs the moisture of the first air to become a low-concentration liquid absorbent.

Thereafter, the low-concentration liquid absorbent is released into the second air from a state in which the temperature is high and the partial pressure of steam (saturated vapor pressure) is increased in the regenerator (22). Regenerates as a liquid absorbent. The regenerated high-concentration liquid absorbent flows again into the humidity exchanger (21) and repeats the above operation.

On the other hand, since the first air is cooled to a predetermined temperature by, for example, a temperature control heat exchanger (35), the first air is adjusted in humidity by a humidity exchanger (21), The temperature is adjusted by the heat exchanger for temperature control (35).

The means adopted by the invention of claim 2 is the heat exchanger for temperature control according to the invention of claim 1.
Is provided in the heat source circuit (30) through which the refrigerant circulates, and the temperature of the first air is adjusted by the amount of heat of the refrigerant.

According to the second aspect of the present invention, in the second aspect, the refrigerant circulates through the heat source circuit (30), and the refrigerant and the first air exchange heat with the temperature control heat exchanger (35). The first air flowing through the humidity exchanger (21) is cooled or heated.

According to a third aspect of the present invention, in the second aspect of the present invention, the heat source circuit (30) is provided for controlling humidity of the liquid absorbent flowing through the humidity exchanger (21). A heat exchanger (37) is provided, and the heat exchanger for humidity control (37) is provided.
Are configured to be provided in series or in parallel with the heat exchanger for temperature control (35).

According to the third aspect of the present invention, in the third aspect, the refrigerant circulates in the heat source circuit (30), and the refrigerant and the liquid absorbent exchange heat in the humidity control heat exchanger (37). To cool or heat the liquid absorbent flowing to the humidity exchanger (21).

According to a fourth aspect of the present invention, in the second aspect of the present invention, the heat source circuit (30) includes a heat source heat source for adjusting the temperature of the second air flowing into the regeneration exchanger (22). The configuration is such that an exchanger (33) is provided.

According to the fourth aspect of the present invention, the second air flowing to the regeneration exchanger (22) is heated or cooled by the exhaust heat of the heat source heat exchanger (33). .

According to a fifth aspect of the present invention, in the above fourth aspect, the regeneration exchanger (22) is arranged corresponding to the refrigerant inlet side of the heat source heat exchanger (33). ,
The heat source heat exchanger (33) is provided so as to be located downstream of the second air.

According to the fifth aspect of the present invention, the second air flowing through the regeneration exchanger (22) is heated by the highest temperature refrigerant, and the second air is heated by the second air.
Of the liquid absorbent will be heated.

According to a sixth aspect of the present invention, in the fourth aspect of the present invention, the heat source circuit (30) includes a regeneration heat exchanger for controlling the temperature of the liquid absorbent flowing through the regeneration exchanger (22). A heat exchanger (38) is provided for the regeneration heat exchanger (38).
Are provided in series or in parallel with the heat source heat exchanger (33).

According to the invention, the refrigerant refrigerant circulating in the heat source circuit (30) exchanges heat with the liquid absorbent in the regeneration heat exchanger (38). The liquid absorbent flowing to (22) is heated or cooled.

[0026] The means adopted by the invention according to claim 7 is that, in the invention described in claim 6, the regeneration exchanger (22) is located downstream of the second air with respect to the heat source heat exchanger (33). The arrangement is arranged.

According to the seventh aspect of the present invention, the second air flowing to the regeneration exchanger (22) is heated or cooled by the exhaust heat of the heat source heat exchanger (33). .

According to an eighth aspect of the present invention, in the first aspect of the present invention, the liquid absorbent of the regeneration exchanger (22) is heated by exhaust gas from an absorption refrigerator or a gas engine. And

According to the invention, the second air flowing to the regeneration exchanger (22) is heated or cooled by the high temperature exhaust gas of the absorption refrigerator or the gas engine. .

The measures taken by the invention of claim 9 are the same as that of the invention of claim 1 except that the absorbent circuit (20)
Variable capacity circulation pump for circulating liquid absorbent (2
3) is provided, and a controller (1A) for controlling the capacity of the circulation pump (23) is provided.

According to the above aspect of the invention, in the ninth aspect of the invention, the amount of the liquid absorbent circulated is controlled by controlling the capacity of the circulation pump (23), and the dehumidifying or humidifying ability is controlled.

According to a tenth aspect of the present invention, in the first aspect, the liquid absorbent is controlled to have a temperature equal to or higher than the dew point temperature of the first air.

According to the above aspect of the invention, in the tenth aspect, dew condensation in the humidity exchanger (21) and the circulation passage (24) is suppressed.

The means adopted by the invention of claim 11 is the heat exchanger for temperature control according to the invention of claim 1 described above.
Are arranged above the humidity exchanger (21).

According to the invention, the drain generated in the heat exchanger for temperature control (35) is absorbed by the humidity exchanger (21).

According to a twelfth aspect of the present invention, in the fourth aspect of the present invention, heat is recovered from the liquid absorbent flowing out of the regeneration exchanger (22) in the absorbent circuit (20). The heat recovery heat exchanger (25) is provided.

According to the above aspect of the invention, in the twelfth aspect of the present invention, the heat recovery of the liquid absorbent flowing out of the regeneration exchanger (22) is performed, so that the liquid absorbent supplied to the humidity exchanger (21) is recovered. The amount of heat to be heated or cooled is suppressed.

The means adopted by the invention of claim 13 is the same as that of claim 2, except that the heat exchanger for humidity control (37) is provided.
Cools the liquid absorbent flowing through the humidity exchanger (21) of the absorbent circuit (20), and the means adopted by the invention according to claim 14 is a heat recovery means. The exchanger (38) heats the liquid absorbent flowing to the regeneration exchanger (22) of the absorbent circuit (20), and the measure taken by the invention according to claim 15 is that the regeneration heat exchanger (38) , Absorbent circuit (2
The liquid absorbent flowing through the regeneration exchanger (22) of (0) is cooled.

According to the above-mentioned invention specifying matter, the present invention is characterized in that:
According to the fifteenth aspect, dehumidification or humidification is reliably performed.

According to a sixteenth aspect of the present invention, in the first aspect, a water supply means (40) for supplying makeup water to the liquid absorbent is connected to the absorbent circuit (20). Configuration.

According to the above aspect of the invention, in the invention according to the sixteenth aspect, steam is more reliably supplied from the water supply means (40) than when the liquid absorbent absorbs water vapor from the second air. .

The means taken by the invention according to claim 17 is the invention according to claim 16, wherein the water supply means (40) is
It is provided with a replenishment humidity exchanger (44) provided in the absorbent circuit (20) and supplying replenishment water via the moisture permeable membrane (4b).

According to the invention, the liquid absorbent absorbs makeup water through the moisture permeable membrane (4b).

The means adopted by the invention according to claim 18 is the invention according to claim 16, wherein the water supply means (40) is
The configuration is provided with a heating means (45) for heating the makeup water.

According to the invention, the temperature of the makeup water is increased, so that the liquid absorbent easily absorbs the makeup water.

The means adopted by the invention of claim 19 is the same as that of claim 18, except that the heating means (45)
The makeup water is heated by the liquid absorbent.

According to the above aspect of the invention, the structure of the heating means (45) can be simplified in the invention of the nineteenth aspect.

According to a twentieth aspect of the present invention, in the nineteenth aspect, the replenishment humidity exchanger (44) and the heating means (45) are integrally formed. is there.

According to the above aspect of the invention, the structure of the heating means (45) can be further simplified in the invention described in claim 20.

The means adopted by the invention of claim 21 is the same as that of claim 1, except that the regeneration exchanger (22)
23. Means provided by the invention according to claim 22, wherein a plurality of the heat exchangers (35) are provided corresponding to the regeneration exchanger (22) while a plurality of the heat exchangers (35) are provided in the absorbent circuit (20). In the invention according to the twenty-first aspect, the regeneration exchanger (22) and the heat exchanger for temperature control (35) are installed on each floor of the house. In the invention according to claim 22, the regenerative exchanger (22) and the heat exchanger for temperature control (35) are installed in the ceiling of a common area or in a machine room.

According to the above-mentioned invention specifying matter, the present invention is characterized in that:
In the invention according to claim 23, the regeneration exchanger (22) and the heat exchanger for temperature control (35) are provided corresponding to various usage patterns.

[0052]

Therefore, according to the first and second aspects of the present invention, the temperature is adjusted by the temperature control heat exchanger (35) and the humidity is adjusted by the humidity exchanger (21). Since the temperature adjustment and the humidity adjustment of the first air can be performed at the same time, for example, cooling and dehumidification can be performed by one device. As a result, since it is not necessary to separately install a humidity control device such as a dehumidifier and a temperature control device such as a cooling device as in the related art, the size of the device can be reduced and the space can be reduced.

Further, since only one device is operated, equipment costs can be reduced.

According to the third aspect of the present invention, the heat source circuit (30) is provided with the humidity control heat exchanger (37) in addition to the temperature control heat exchanger (35). Circuit (20)
Since the liquid absorbent flowing through the humidity exchanger (21) can be surely heated or cooled, the dehumidification or humidification can be surely performed.

When the temperature control heat exchanger (35) and the humidity control heat exchanger (37) are connected in parallel, the temperature control and the humidity control can be controlled independently of each other. The range can be expanded.

According to the fourth aspect of the present invention, since the liquid absorbent can be regenerated by utilizing the exhaust heat in the heat source heat exchanger (33) of the heat source circuit (30), the structure is simplified. Can be achieved.

Further, according to the fifth aspect of the present invention, the regeneration exchanger (22) is arranged corresponding to the refrigerant inlet side of the heat source heat exchanger (33), and the heat source heat exchanger (33). ), The second air is most susceptible to the heat of the refrigerant, and the heat of the second air can be used by the liquid absorbent. Can be improved.

According to the sixth aspect of the present invention, the heat source circuit (30) is provided with the regeneration heat exchanger (38) in addition to the heat source heat exchanger (33). (20)
The temperature of the liquid absorbent flowing into the regeneration exchanger (22) can be adjusted, and the excess or insufficient heat in the heat source circuit (30) can be treated with outdoor air.
The range of application can be expanded.

According to the invention of claim 7, the regeneration exchanger (22) is arranged corresponding to the refrigerant inlet side of the heat source heat exchanger (33), and the heat source heat exchanger (33). ), The second air is most susceptible to the heat of the refrigerant, and the heat of the second air can be used by the liquid absorbent. Can be improved.

According to the eighth aspect of the present invention, the liquid absorbent in the regeneration exchanger (22) is heated by the exhaust gas of the absorption refrigerator or gas engine.
Since the liquid absorbent is heated by the high-temperature exhaust gas, the size of the regeneration exchanger (22) can be reduced.

According to the ninth aspect of the present invention, since the capacity of the circulating pump (23) of the absorbent circuit (20) is made variable, the capacity of the circulating pump (23) is controlled to control the dehumidifying capacity or humidification. The ability can be easily adjusted.

According to the tenth aspect of the present invention, since the liquid absorbent is controlled to have a temperature equal to or higher than the dew point temperature of the first air, the generation of drain in the humidity exchanger (21) can be suppressed. In addition, dew condensation and the like in the circulation passage (24) can be reliably prevented. That is, the liquid absorbent is the first
Even when the temperature is equal to or higher than the dew point temperature of air, moisture can be absorbed, so that the cost for measures such as generation of drainage and dew condensation can be reduced.

According to the eleventh aspect of the present invention, since the temperature control heat exchanger (35) is disposed above the humidity exchanger (21), the temperature control heat exchanger (35) is used. Drain can be absorbed by the humidity exchanger (21),
There is no need to separately perform drain processing, and the configuration can be simplified.

According to the twelfth aspect of the present invention, since the heat recovery heat exchanger (25) is provided, the amount of heat for cooling or the amount of heat for heating in the heat exchanger for temperature control (35) is reduced. Operation efficiency can be improved.

According to the thirteenth to fifteenth aspects of the invention, the heat exchanger for humidity control (37) or the heat exchanger for regeneration (38) cools or heats the liquid absorbent. , Dehumidification or humidification can be surely performed.

According to the sixteenth aspect of the present invention, since the water supply means (40) is connected to the absorbent circuit (20), it is not possible to absorb moisture from the second air. Also, since the makeup water is supplied by the water supply means (40), the humidification operation can be reliably performed.

Further, since it is possible to absorb water without cooling the liquid absorbent, cooling of the liquid absorbent can be omitted.

Further, for example, since the water supply means (40) can be provided only outside the room, there is no need to introduce a water supply system into the room, and the overall configuration can be simplified.

According to the seventeenth aspect of the present invention, in the replenishing humidity exchanger (44), the liquid absorbent absorbs moisture from the replenishing water via the moisture permeable membrane (4b). Impurities can be prevented from being mixed in.

According to the eighteenth aspect of the present invention, the liquid absorbing agent is heated by the heating means (45), so that the replenishment humidity exchanger (44) can easily absorb moisture. Moisture-permeable membrane (4b)
The water supply portion can be reduced in area.

According to the nineteenth aspect of the invention, since the makeup water is heated by the liquid absorbent of the absorbent circuit (20), a separate heating source or the like is not required, so that the circuit configuration is simplified. Can be achieved.

Further, according to the twentieth aspect of the present invention, since the replenishment humidity exchanger (44) and the heating means (45) are formed integrally, the structure can be further simplified.

According to the twenty-first and twenty-second aspects of the present invention, it is possible to install a humidity exchanger (21) and a temperature-regulating heat exchanger (35) in a house in accordance with a use pattern. The circulation passage and the like can be shortened.

According to the twenty-third aspect of the present invention, when the humidity exchanger (21) and the temperature-regulating heat exchanger (35) are installed on the ceiling or the like, maintenance and future changes can be easily handled. it can.

[0075]

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

As shown in FIG. 1, the air conditioner (10)
Is configured to include an absorbent circuit (20) and a heat source circuit (30) to perform temperature control and humidity control.

The absorbent circuit (20) is connected to the indoor exchanger (2).
1), the outdoor exchanger (22) and the circulation pump (23) are configured in a closed circuit by the circulation passage (24). The absorbent circuit (20) is configured to be filled with a liquid absorbent such as a lithium chloride aqueous solution, and the liquid absorbent is circulated by a circulation pump (23).

The indoor exchanger (21) is a humidity exchanger installed in a room to adjust the humidity of the room, and includes a moisture permeable film such as a porous hydrophobic polymer film (not shown).
The moisture permeable membrane blocks the passage of water but allows the passage of water vapor (moisture), and is provided at a portion where the liquid absorbent and the room air are in contact with each other. The indoor exchanger (21) is configured such that the liquid absorbent exchanges water vapor with indoor air, which is the first air, via the moisture permeable membrane.

The outdoor exchanger (22) is a regeneration exchanger installed outside the room to regenerate the liquid absorbent. Although not shown, similarly to the indoor exchanger (21), the outdoor exchanger (22) has a porous hydrophobic property. It has a moisture permeable membrane such as a molecular membrane. The moisture permeable membrane is provided at a portion where the liquid absorbent and the outdoor air are in contact with each other, and the outdoor exchanger (22) is configured to allow the liquid absorbent to pass through the second
It is configured to exchange outdoor air, which is air, and water vapor.

The heat source circuit (30) is constituted by a vapor compression refrigeration cycle in which a refrigerant is charged and the refrigerant circulates,
The temperature is adjusted by changing the sensible heat of the indoor air. The heat source circuit (30) is composed of a compressor (31), a four-way switching valve (32), an outdoor heat exchanger (33), an expansion valve (34), and an indoor heat exchanger (35). (36) are connected to form a closed circuit, and the refrigerant is circulated in a reversible direction.

The outdoor heat exchanger (33) is disposed in parallel with the outdoor exchanger (22) in the absorbent circuit (20), and serves as a heat source heat source for controlling the temperature of outdoor air flowing through the outdoor exchanger (22). Constitutes an exchanger. And the outdoor exchanger (2
2) is arranged corresponding to the refrigerant inlet side of the outdoor heat exchanger (33), and is arranged downstream of the outdoor air with respect to the outdoor heat exchanger (33).

The outdoor heat exchanger (33) functions as a condenser for condensing the refrigerant when the outdoor exchanger (22) is in a cooling dehumidifying operation or the like in which the moisture of the liquid absorbent is released, and the outdoor exchanger (33) It is configured to heat the outdoor air flowing to 22). On the other hand, the outdoor heat exchanger (33) functions as an evaporator for evaporating the refrigerant when the outdoor exchanger (22) is in a heating and humidifying operation in which the liquid absorbent absorbs moisture, and the outdoor exchanger (22) ) Is configured to cool the outdoor air flowing through the outside air.

The indoor heat exchanger (35) is arranged corresponding to the indoor exchanger (21) in the absorbent circuit (20).
The temperature control heat exchanger for controlling the temperature of the indoor air flowing through the indoor exchanger (21) is configured. The indoor heat exchanger (35) is disposed above the indoor exchanger (21) so that drain water or the like generated in the indoor heat exchanger is absorbed by the indoor exchanger (21). In addition, the indoor air whose temperature has been adjusted by the indoor heat exchanger (35) is configured to flow through the indoor exchanger (21).

The indoor heat exchanger (35) functions as an evaporator for evaporating the refrigerant when the indoor exchanger (21) is in a cooling and dehumidifying operation in which the liquid absorbent absorbs water, and the indoor exchanger (35). It is configured to cool the room air flowing to 21). On the other hand, the indoor heat exchanger (35) functions as a condenser in which the refrigerant condenses when the indoor exchanger (21) performs a heating and humidifying operation in which the moisture of the liquid absorbent is released, and the indoor exchanger (21). ) Is configured to heat room air flowing therethrough.

In particular, as a feature of the present invention, the indoor heat exchanger (35) changes the sensible heat of the indoor air when the indoor exchanger (21) adjusts the indoor humidity. Heat exchange is performed to adjust the temperature to a predetermined temperature, and the indoor heat exchanger (35) and the indoor exchanger (21) are configured to generate conditioned air.

The outdoor heat exchanger (33) exchanges heat between the refrigerant and the outdoor air such that the heat balance of the heat source circuit (30) is maintained with respect to the indoor heat exchanger (35). It is configured.

On the other hand, the circulation pump (23) in the absorbent circuit (20) is configured to be variable in capacity, and the capacity of the circulation pump (23) is controlled by the controller (1A).
The circulation amount of the liquid absorbent is configured to be controlled.

The capacity of the indoor heat exchanger (35) of the heat source circuit (30) is controlled so that the temperature of the liquid absorbent in the absorbent circuit (20) is always equal to or higher than the dew point temperature of the indoor air. Have been.

Next, the air conditioning operation of the air conditioner (10) will be described.

[Cooling and Dehumidifying Operation] First, when performing the cooling and dehumidifying operation, in the heat source circuit (30), the four-way switching valve (32) is switched to the solid line side in FIG. 1 and discharged from the compressor (31). The high-temperature high-pressure refrigerant releases heat to outdoor air in the outdoor heat exchanger (33) and condenses. Thereafter, the condensed refrigerant is depressurized by the expansion valve (34) and flows to the indoor heat exchanger (35), where the indoor air is cooled to a predetermined temperature and evaporated by the indoor heat exchanger (35). Perform circulation returning to (31).

On the other hand, in the absorbent circuit (20),
The circulation pump (23) is driven to circulate the liquid absorbent.
At that time, the indoor heat exchanger (35)
The indoor air cooled and temperature-controlled by the air flows into the absorbent circuit (20) as a high-concentration liquid absorbent having a low temperature and a reduced partial pressure of steam (saturated vapor pressure) due to the indoor air. It flows through the indoor exchanger (21). When the water vapor partial pressure falls below the indoor air, the liquid absorbent absorbs the moisture of the indoor air to become a low-concentration liquid absorbent. On the other hand, the indoor air is dehumidified to adjust the humidity, and this temperature is adjusted. Conditioned and humidified room air is supplied to the room.

Thereafter, the low-concentration liquid absorbent flows into the outdoor exchanger (22).
, The outdoor air heated by the outdoor heat exchanger (33) flows, so that the liquid air in the absorbent circuit (20) has a high temperature and the water vapor partial pressure (saturated vapor pressure) has increased due to the outdoor air. It flows through the outdoor exchanger (22) as a liquid absorbent. When the partial pressure of water vapor rises above the outdoor air, the liquid absorbent releases moisture into the outdoor air to be regenerated as a high-concentration liquid absorbent.

The regenerated high-concentration liquid absorbent flows again into the indoor exchanger (21) and repeats the above operation, thereby dehumidifying the room and cooling the room. The liquid absorbent is controlled so as to constantly circulate at a temperature equal to or higher than the dew point temperature of the room air, while the dehumidifying capacity is controlled by a circulation pump (2).
3) The capacity is adjusted by controlling the capacity of the controller (1A).

[Dehumidification Operation] When only the dehumidification operation is performed, the capacity of the heat source circuit (30) is reduced as compared with the cooling and dehumidification operation described above, and the evaporation capacity and outdoor heat of the indoor heat exchanger (35) are reduced. Reduce the condensation capacity of the exchanger (33). As a result, the temperature changes of the indoor air and the outdoor air are reduced, and the liquid absorbent is
The indoor exchanger (21) only absorbs moisture by raising and lowering the partial pressure of water vapor, and the outdoor exchanger (22) circulates by only releasing moisture.

[Heating and humidifying operation] When performing the heating and humidifying operation,
The operation opposite to the cooling and dehumidifying operation is performed. First, in the heat source circuit (30), the four-way switching valve (32) switches to the broken line side in FIG. 1, and the high-temperature high-pressure refrigerant discharged from the compressor (31) is supplied to the indoor heat exchanger (35). The air is heated to a predetermined temperature and condensed. Thereafter, the condensed refrigerant is decompressed by the expansion valve (34), flows to the outdoor heat exchanger (33), absorbs heat from outdoor air in the outdoor heat exchanger (33), and evaporates, and the compressor (31) Return to the circulation.

On the other hand, in the absorbent circuit (20),
The circulation pump (23) is driven to circulate the liquid absorbent.
At that time, the indoor heat exchanger (35)
The room air heated and temperature-controlled by the air flows into the absorbent circuit (20) as a low-concentration liquid absorbent having a high temperature and a high water vapor partial pressure (saturated vapor pressure) due to the room air. It flows through the indoor exchanger (21). When the water vapor partial pressure rises higher than the indoor air, the liquid absorbent releases moisture into the indoor air to become a high-concentration liquid absorbent. On the other hand, the indoor air is humidified and the humidity is adjusted. Conditioned and humidified room air is supplied to the room.

Thereafter, the high-concentration liquid absorbent flows into the outdoor exchanger (22).
, The outdoor air cooled by the outdoor heat exchanger (33) flows, so that the liquid air in the absorbent circuit (20) has a low temperature and the water vapor partial pressure (saturated vapor pressure) drops due to the outdoor air. It flows through the outdoor exchanger (22) as a liquid absorbent. When the water vapor partial pressure falls below the outdoor air, the liquid absorbent absorbs moisture from the outdoor air and becomes a low-concentration liquid absorbent and is regenerated.

The regenerated low-concentration liquid absorbent flows again into the indoor exchanger (21) and repeats the above-mentioned operation, thereby humidifying the room and heating the room. The humidification capacity is adjusted by controlling the capacity of the circulation pump (23) by the controller (1A).

[Humidifying operation] When only the humidifying operation is performed, the capacity of the heat source circuit (30) is reduced as compared with the above-described heating and humidifying operation, and the condensing capacity of the indoor heat exchanger (35) and the outdoor heat are reduced. The evaporating capacity of the exchanger (33) is reduced. As a result, the temperature changes of the indoor air and the outdoor air are reduced, and the liquid absorbent is
The indoor exchanger (21) only discharges water by raising and lowering the partial pressure of water vapor, and the outdoor exchanger (22) only circulates water to circulate.

-Effects of First Embodiment- As described above, according to the first embodiment, the temperature is adjusted by the indoor heat exchanger (35) and the humidity is adjusted by the indoor exchanger (21). Therefore, the temperature and humidity of the room can be adjusted at the same time, so that cooling and dehumidification can be performed by, for example, one device. As a result, since it is not necessary to separately install a humidity control device such as a dehumidifier and a temperature control device such as a cooling device as in the related art, the size of the device can be reduced and the space can be reduced.

Since only one device is operated, equipment costs can be reduced.

Further, since the liquid absorbent is controlled to have a temperature equal to or higher than the dew point temperature of the indoor air, the generation of drain in the indoor exchanger (21) can be suppressed, and the dew condensation and the like in the circulation passage (24) can be reliably prevented. Can be prevented. That is, since the liquid absorbent can absorb moisture even when the temperature is equal to or higher than the dew point temperature of the indoor air, the cost of countermeasures such as generation of drainage and dew condensation can be reduced.

Further, since the liquid absorbent can be regenerated by utilizing the exhaust heat in the outdoor heat exchanger (33) of the heat source circuit (30), the structure can be simplified.

Further, since the capacity of the circulation pump (23) of the absorbent circuit (20) is made variable, the capacity of the circulation pump (23) can be controlled to easily adjust the dehumidification capacity or the humidification capacity. .

Further, the outdoor exchanger (22) is arranged corresponding to the refrigerant inlet side of the outdoor heat exchanger (33), and is located downstream of the outdoor air with respect to the outdoor heat exchanger (33). , The outdoor air is most susceptible to the heat of the refrigerant, and the heat of the outdoor air can be used by the liquid absorbent, so that the efficiency can be improved.

Since the indoor heat exchanger is disposed above the indoor exchanger (21), the drain generated in the indoor heat exchanger can be absorbed by the indoor exchanger (21). Therefore, there is no need to separately perform drain processing, and the configuration can be simplified.

-Modification of First Embodiment- In the above embodiment, one indoor exchanger (21) is provided, but a plurality of indoor exchangers (21) may be provided. That is, although not shown, the indoor circulation path of the absorbent circuit (20) is branched into a plurality of parts, and the indoor exchangers (21) are connected to the respective branched circulation paths to connect the plurality of indoor exchangers (21). They may be connected in parallel with each other.

On the other hand, also in the heat source circuit (30), the refrigerant pipe on the indoor side is branched into a plurality, and an indoor heat exchanger is connected to each of the branched refrigerant pipes so as to correspond to the indoor exchanger (21). A plurality of indoor heat exchangers are connected in parallel with each other.

The indoor exchanger (21) and the indoor heat exchanger to be paired are installed, for example, on each floor of a house, and specifically, are installed above the ceiling of a common area or in a machine room.

Therefore, according to the present modification, the indoor exchanger (21) and the indoor heat exchanger can be installed in the house according to the usage pattern, and the circulation passage and the like can be shortened. .

Further, when the indoor exchanger (21) and the indoor heat exchanger are installed on the ceiling or the like, maintenance and future changes can be easily handled.

[0112]

Second Embodiment In this embodiment, as shown in FIG. 2, a heat recovery heat exchanger (25) is provided in the absorbent circuit (20) in the first embodiment. That is, the heat recovery heat exchanger (25) is configured to exchange heat between the liquid absorbent flowing into the outdoor heat exchanger (33) and the liquid absorbent flowing out of the outdoor exchanger (22). Have been.

Therefore, during the cooling or dehumidifying operation, the low-temperature liquid absorbent is supplied from the indoor exchanger (21) to the outdoor exchanger (2).
The liquid absorbent is heated in 2) and flows out of the outdoor exchanger (22). The temperature of the liquid absorbent flowing out of the outdoor exchanger (22) is increased by the liquid absorbent flowing into the outdoor exchanger (22). Will be collected.

On the other hand, during the operation of heating or humidification, the high-temperature liquid absorbent is cooled by the outdoor exchanger (22) from the indoor exchanger (21) and flows out of the outdoor exchanger (22). The cold of the liquid absorbent flowing out of the outdoor exchanger (22) is recovered by the liquid absorbent flowing into the outdoor exchanger (22).

As a result, the amount of heat to be cooled or the amount of heat to be heated in the indoor heat exchanger (35) is reduced, and the operation efficiency can be improved. Other configurations, operations, and effects are the same as those in the first embodiment.

[0116]

Third Embodiment As shown in FIG. 3, this embodiment is obtained by adding a humidity control heat exchanger (37) to the heat source circuit (30) of the second embodiment.

That is, on the indoor side of the heat source circuit (30), an indoor bypass pipe (3a) for bypassing the indoor heat exchanger (35) and the expansion valve (34) is provided. A vessel (37) is provided in the indoor bypass pipe (3a) and is provided in parallel with the indoor heat exchanger (35). Further, the humidity control heat exchanger (37) is connected to a circulation passage (24) on the upstream side of the indoor exchanger (21) in the absorbent circuit (20),
The liquid absorbent flowing into the indoor exchanger (21) and the heat source circuit (3
The liquid absorbent is cooled or heated by exchanging heat with the refrigerant of 0). The indoor bypass pipe (3a) is provided with an expansion valve (34). Other configurations are the same as those of the second embodiment.

-Air-conditioning operation- Next, the air-conditioning operation of the air conditioner (10) will be described.

[Cooling and Dehumidifying Operation] When performing the cooling and dehumidifying operation,
In the heat source circuit (30), the four-way switching valve (32) switches to the solid line side in FIG. 1, and the high-temperature high-pressure refrigerant discharged from the compressor (31) flows into the outdoor heat exchanger (33) and flows out of the outdoor. Release heat to air and condense. This condensed refrigerant is supplied to the indoor heat exchanger (3
5) and the humidifying heat exchanger (37) are diverted to the expansion valve (34).
Then, the indoor air is cooled and evaporated in the indoor heat exchanger (35), while the liquid absorbent in the absorbent circuit (20) is cooled and evaporated in the humidity control heat exchanger (37). Then, the evaporated refrigerants merge and return to the compressor.

On the other hand, while the liquid absorbent cooled by the humidity control heat exchanger (37) flows through the indoor exchanger (21) in the absorbent circuit (20), the indoor heat exchanger (35) The indoor air cooled and temperature-controlled flows through the indoor exchanger (21) as a high-concentration liquid absorbent having a low temperature and a reduced water vapor partial pressure (saturated vapor pressure). The liquid absorbent absorbs moisture from indoor air having a high water vapor partial pressure to become a low-concentration liquid absorbent, while indoor air is dehumidified and adjusted for humidity, and the temperature and humidity are adjusted. Room air is supplied to the room.

Thereafter, the low-concentration liquid absorbent flows to the outdoor exchanger (22), and has a high temperature and a partial pressure of steam (saturated vapor pressure) due to the outdoor air heated by the outdoor heat exchanger (33). It becomes an elevated liquid absorbent. Then, in the outdoor exchanger (22), when the partial pressure of water vapor rises above the outdoor air in the outdoor exchanger (22), the liquid absorbent releases moisture to the outdoor air to be regenerated as a high-concentration liquid absorbent.

The regenerated high-concentration liquid absorbent flows again into the indoor exchanger (21) and repeats the above-mentioned operation, thereby dehumidifying the room and cooling the room.

[Dehumidification Operation] When only the dehumidification operation is performed, the capacity of the heat source circuit (30) is reduced as compared with the cooling and dehumidification operation described above, and the expansion valve (34) of the indoor heat exchanger (35) is reduced. Is closed to allow the refrigerant to flow only through the humidity control heat exchanger (37), thereby reducing the evaporation capacity of the humidity control heat exchanger (37) and the condensation capacity of the outdoor heat exchanger (33). As a result, the liquid absorbent flowing into the indoor exchanger (21) is cooled to a temperature required only for absorbing moisture, while the temperature change of the outdoor air is reduced, and the liquid absorbent is raised and lowered by the partial pressure of water vapor. The exchanger (21) circulates while only absorbing moisture, while the outdoor exchanger (22) only releases moisture. During the dehumidification operation, the expansion valve (3) of the indoor heat exchanger (35)
4) may be opened so that the refrigerant circulates through the indoor heat exchanger (35), similarly to the cooling and dehumidifying operation.

[Heating and humidifying operation] When performing the heating and humidifying operation,
The operation opposite to the cooling and dehumidifying operation is performed. First, in the heat source circuit (30), the four-way switching valve (32) switches to the broken line side in FIG. 1, and the high-temperature high-pressure refrigerant discharged from the compressor (31) is regulated by the indoor heat exchanger (35). The heat is diverted to the humidity heat exchanger (37), and the indoor air is heated and condensed by the indoor heat exchanger (35), while the absorbent circuit (20) is heated by the humidity control heat exchanger (37).
The liquid absorbent is heated and condensed. After that, the condensed refrigerant is decompressed by the expansion valve (34), merges, flows into the outdoor heat exchanger (33), absorbs heat from outdoor air in the outdoor heat exchanger (33), evaporates, and compresses. Circulate back to the machine (31).

On the other hand, while the liquid absorbent heated by the humidity control heat exchanger (37) flows through the indoor exchanger (21) in the absorbent circuit (20), the indoor heat exchanger (35) Since the indoor air heated and temperature-controlled by the air flows, the liquid absorbent flows through the indoor exchanger (21) as a low-concentration liquid absorbent having a high temperature and an increased water vapor partial pressure (saturated vapor pressure). The liquid absorbent releases moisture to the indoor air having a low water vapor partial pressure to become a high-concentration liquid absorbent, while the indoor air is humidified and the humidity is adjusted, and the temperature and the humidity are adjusted. Room air is supplied to the room.

Thereafter, the high-concentration liquid absorbent flows into the outdoor exchanger (22), and has a low temperature and a partial vapor pressure (saturated vapor pressure) of the outdoor air cooled by the outdoor heat exchanger (33). It becomes a liquid absorbent that has fallen. When the partial pressure of water vapor falls below the outdoor air in the outdoor exchanger (22), the liquid absorbent absorbs moisture from the outdoor air and becomes a low-concentration liquid absorbent and is regenerated.

The regenerated low-concentration liquid absorbent flows again into the indoor exchanger (21) and repeats the above-mentioned operation, thereby humidifying the room and heating the room.

[Humidifying operation] When only the humidifying operation is performed, the capacity of the heat source circuit (30) is reduced as compared with the above-described heating and humidifying operation, and the expansion valve (34) of the indoor heat exchanger (35) is reduced. Is closed to allow the refrigerant to flow only to the humidity control heat exchanger (37), thereby reducing the condensation capacity of the humidity control heat exchanger (37) and the evaporation capacity of the outdoor heat exchanger (33). As a result, the liquid absorbent flowing to the indoor exchanger (21) is heated to a temperature required only for releasing moisture, while the temperature change of the outdoor air is reduced, and the liquid absorbent is raised and lowered by the partial pressure of water vapor. The exchanger (21) only circulates moisture while the outdoor exchanger (22) circulates only moisture. During the humidification operation, the expansion valve (3) of the indoor heat exchanger (35)
4) may be opened so that the refrigerant circulates through the indoor heat exchanger (35) as in the heating and humidifying operation.

-Effects of Third Embodiment- According to the third embodiment, the heat source circuit (30) is provided with a humidity control heat exchanger (37) in addition to the indoor heat exchanger (35). As a result, the liquid absorbent flowing in the indoor exchanger (21) of the absorbent circuit (20) can be reliably heated or cooled, so that dehumidification or humidification can be reliably performed.

Further, since the indoor heat exchanger (35) and the humidity control heat exchanger (37) are connected in parallel,
Since the temperature control and the humidity control can be controlled independently of each other, the control range can be expanded. Other effects are the same as those of the second embodiment.

[0131]

[Embodiment 4] In this embodiment, as shown in FIG. 4, although the humidity control heat exchanger (37) is provided in parallel with the indoor heat exchanger (35) in Embodiment 3 described above. Instead, the humidity control heat exchanger (37) is provided in series with the indoor heat exchanger (35).

That is, the heat source circuit (30) is provided with a four-way switching valve (32), an outdoor heat exchanger (33), an expansion valve (34) and a humidity control heat exchanger (37) from the compressor (31). ) And the indoor heat exchanger (35) are sequentially connected in series.

Therefore, in both the cooling dehumidifying operation and the dehumidifying operation, the refrigerant in the heat source circuit (30) is condensed in the outdoor heat exchanger (33), and then expands to expand the refrigerant in the humidity control heat exchanger (37). ) And the indoor heat exchanger (35) to evaporate, thereby cooling the liquid absorbent in the absorbent circuit (20) and the indoor air to a predetermined temperature.

On the other hand, in both the heating and humidifying operation and the humidifying operation, the refrigerant in the heat source circuit (30) condenses in the indoor heat exchanger (35) and the humidity control heat exchanger (37).
It expands and evaporates in the outdoor heat exchanger (33),
The liquid absorbent in the absorbent circuit (20) and the room air are heated to a predetermined temperature. Other configurations and operations are the same as those of the third embodiment.

As a result, similarly to Embodiment 3, the liquid absorbent flowing through the indoor exchanger (21) of the absorbent circuit (20) can be reliably heated or cooled, so that dehumidification or humidification can be reliably achieved. Can be done.

[0136]

Embodiment 5 In this embodiment, as shown in FIG. 5, a regeneration heat exchanger (38) is added to the heat source circuit (30) of Embodiment 2 described above.

That is, an outdoor bypass pipe (3b) for bypassing the outdoor heat exchanger (33) is provided at the outdoor side of the heat source circuit (30), and the regeneration heat exchanger (38) is connected to the outdoor bypass pipe. The outdoor heat exchanger (3
It is provided in parallel with 3). Further, the regeneration heat exchanger (38) is connected to the outdoor exchanger (22) in the absorbent circuit (20).
A circulation passage (24) on the upstream side is connected, and heat exchange is performed between the liquid absorbent flowing in the outdoor exchanger (22) and the refrigerant in the heat source circuit (30) to heat or cool the liquid absorbent. It is configured. An on-off valve (SV) is provided in the refrigerant pipe (36) on the gas side in the outdoor heat exchanger (33). Other configurations are the same as those of the second embodiment.

-Air-conditioning operation and effects- Next, the air-conditioning operation will be described.
0) In the operation of cooling or dehumidification, the compressor (31)
The discharged high-temperature high-pressure refrigerant is split and flows to the outdoor heat exchanger (33) and the regeneration heat exchanger (38), and the high-pressure refrigerant is radiated to outdoor air by the outdoor heat exchanger (33). While the liquid absorbent in the absorbent circuit (20) is heated and condensed by the regeneration heat exchanger (38).

In the regeneration heat exchanger (38), only heating for raising the partial pressure of water vapor is performed so that the liquid absorbent releases moisture and regenerates, and the heat radiation of the refrigerant heat is performed in the chamber. This takes place in the outer heat exchanger (33). In addition, the indoor heat exchanger (35) and the absorbent circuit (20) of the heat source circuit (30)
The operation of the indoor exchanger (21) is similar to that of the second embodiment, and indoor cooling or dehumidification is performed. However, when only dehumidification is performed, the on-off valve (SV) is closed and the outdoor heat exchanger (33) is closed. ) Does not flow, and the refrigerant flows through the regeneration heat exchanger (38) to heat the liquid absorbent. During this dehumidification operation, the on-off valve (SV)
May be opened to allow the refrigerant to flow to the outdoor heat exchanger (33).

In the heating or humidifying operation, in the heat source circuit (30), the liquid refrigerant condensed in the indoor heat exchanger (35) and decompressed by the expansion valve (34) is supplied to the outdoor heat exchanger (33). ) And the regenerative heat exchanger (38).
The outdoor heat exchanger (33) exchanges heat with outdoor air to evaporate, while the regeneration heat exchanger (38) cools and evaporates the liquid absorbent in the absorbent circuit (20).

In the regeneration heat exchanger (38), only cooling for lowering the partial pressure of water vapor is performed so that the liquid absorbent absorbs moisture and regenerates, and the heat absorption of the refrigerant calorie is performed in the chamber. This takes place in the outer heat exchanger (33). In addition, the indoor heat exchanger (35) and the absorbent circuit (20) of the heat source circuit (30)
The operation of the indoor exchanger (21) is similar to that of the second embodiment, and heating or humidification of the indoor air is performed. However, during the operation of only humidification, the on-off valve (SV) is closed and the outdoor heat exchanger ( No refrigerant flows to 33), and the refrigerant flows to the regeneration heat exchanger (38) to cool the liquid absorbent. During the humidification operation, the refrigerant may flow into the outdoor heat exchanger (33) by opening the on-off valve (SV).

Therefore, according to the fifth embodiment, the heat source circuit (30) is provided with the regeneration heat exchanger (38) in addition to the outdoor heat exchanger (33). )
The temperature of the liquid absorbent flowing into the outdoor exchanger (22) can be adjusted, and the excess or insufficient heat in the heat source circuit (30) can be treated with outdoor air.
The range of application can be expanded. Other effects are the same as those of the second embodiment.

[0143]

Sixth Embodiment This embodiment is different from the fifth embodiment in that the regeneration heat exchanger (38) is provided in parallel with the outdoor heat exchanger (33) as shown in FIG. In addition, the regeneration heat exchanger (38) is provided in series with the outdoor heat exchanger (33).

That is, the heat source circuit (30) includes a four-way switching valve (32), a regeneration heat exchanger (38), an outdoor heat exchanger (33), and an expansion valve (34) from the compressor (31). And the indoor heat exchanger (35) are sequentially connected in series.

Therefore, in both the cooling dehumidifying operation and the dehumidifying operation, the refrigerant in the heat source circuit (30) condenses in the regeneration heat exchanger (38) and the outdoor heat exchanger (33) and then expands. As a result, the liquid absorbent and the outdoor air in the absorbent circuit (20) are cooled to a predetermined temperature.

On the other hand, in both the heating and humidifying operation and the humidifying operation, the refrigerant in the heat source circuit (30) condenses in the indoor heat exchanger (35), expands, and expands. And it evaporates in the regeneration heat exchanger (38), and heats the liquid absorbent and outdoor air of the absorbent circuit (20) to a predetermined temperature. Other configurations and operations are the same as those of the fifth embodiment.

As a result, similarly to Embodiment 5, the liquid absorbent flowing through the outdoor exchanger (22) of the absorbent circuit (20) can be reliably heated or cooled, so that dehumidification or humidification can be ensured. Can be done.

[0148]

Seventh Embodiment In this embodiment, as shown in FIG. 7, the heat recovery heat exchanger (25) in the absorbent circuit (20) of the fifth embodiment is omitted. That is, in the heat source circuit (30) of the first embodiment, as in the fifth embodiment, the regeneration heat exchanger (38) is provided in parallel with the outdoor heat exchanger (33).

Therefore, it is the same as the fifth embodiment except that the heat recovery in the fifth embodiment is performed. Other configurations, operations and effects are the same as those of the fifth embodiment.

[0150]

Eighth Embodiment In this embodiment, as shown in FIG. 8, a water supply means (40) is connected to the absorbent circuit (20) in the second embodiment.

The water supply means (40) includes an absorbent circuit (20)
And a water supply tank (41) for storing makeup water, the water supply tank (41) comprising:
A water supply valve (WV) is connected to the water supply tank (41) while being connected via a water supply pipe (42) to a circulation passage (24) on the suction side of the circulation pump (23) in the absorbent circuit (20). The water supply system (43) is connected. Other configurations are the same as those of the second embodiment.

-Air-conditioning operation and effect- Next, the air-conditioning operation will be described. During the cooling and dehumidifying operation, the liquid absorbent is cooled by the indoor exchanger (21) to absorb the moisture of the indoor air. The air is heated by the outdoor air in the outdoor exchanger (22) to release moisture to the outdoor air.
During the cooling and dehumidifying operation and the dehumidifying operation, no makeup water is supplied to the water supply tank (41), and no water is supplied from the water supply means (40) to the liquid absorbent.

On the other hand, during the heating and humidifying operation and during the humidifying operation,
The liquid absorbent is heated by the indoor exchanger (21) to release moisture to the indoor air, and is cooled by the outdoor air by the outdoor exchanger (22) to absorb moisture from the outdoor air. In this case, even if the temperature of the outdoor air is low and water cannot be absorbed from the outdoor air, make-up water is supplied to the water supply tank (41), and the water supply means (40) supplies the make-up water to the liquid absorbent. The moisture is supplied, and the moisture is supplied from the indoor exchanger (21) to the indoor air to humidify the room.

Therefore, according to the present embodiment, even when moisture cannot be absorbed from outdoor air,
Since the makeup water is supplied by the water supply means (40), the humidification operation can be reliably performed.

In addition, since it is possible to absorb water without cooling the liquid absorbent, cooling of the liquid absorbent can be omitted.

Further, since the water supply means (40) can be provided only outside the room, the water supply system (4
There is no need to introduce 3), and the overall configuration can be simplified. Other functions and effects are described in the second embodiment.
Is the same as

[0157]

[Embodiment 9] In this embodiment, as shown in FIG. 9, instead of the water supply means (40) of Embodiment 8 directly supplying makeup water to the absorbent circuit (20), A supplementary humidity exchanger (44) is provided.

That is, a replenishment humidity exchanger (44) is provided between the circulation pump (23) and the indoor exchanger (21) in the absorbent circuit (20), while the replenishment humidity exchanger (44) is provided. 44) is connected to a water supply pipe (42). The water supply pipe (42) is provided with a water supply valve (WV).

As shown in FIG. 10, the replenishment humidity exchanger (44) includes an outer tube (4a) having both ends closed and a moisture permeable membrane (4b). The outer tube (4a)
The diameter of the circulation passage (24) of the absorbent circuit (20) is larger than that of the circulation passage (24), and the ends of the circulation passage (24) are inserted into both ends.

[0160] The moisture permeable membrane (4b) is connected to the outer tube (4a).
And is provided in a cylindrical shape inside the end of the circulating passage (24). Then, make-up water is supplied from the water supply pipe (42) between the outer tube (4a) and the moisture permeable membrane (4b), and the liquid absorbent flowing through the inside of the moisture permeable membrane (4b) is supplied with water from the make-up water. It is configured to absorb light.

Further, a heat exchanger (45) for heating makeup water is provided in the middle of the water supply pipe (42). The heating heat exchanger (45) is connected to a refrigerant pipe (36) between the indoor heat exchanger (35) and the expansion valve (34) in the heat source circuit (30) to constitute heating means. I have. Then, in the heat source circuit (30), the high-pressure refrigerant flowing from the compressor (31) through the indoor heat exchanger (35) heats the makeup water in the heating heat exchanger (45). It is configured to flow to the air heat exchanger (37) via the expansion valve (34).

In FIG. 10, the supply humidity exchanger (44) and the water supply tank (41) are connected, and the heating heat exchanger (45) is omitted. Other configurations are
This is the same as the eighth embodiment.

-Air-conditioning operation and effect- Next, the air-conditioning operation will be described. In the heating and humidifying operation and the humidifying operation, make-up water is supplied to the water supply tank (41), and the water is supplied from the water supply tank (41). Makeup water is being supplied to the humidity exchanger (44). Furthermore, this makeup water
Since the liquid absorbent is heated by the heating heat exchanger (45), the liquid absorbent in the replenishment humidity exchanger (44) contains the moisture permeable membrane (4).
Absorb water from make-up water via b).

After that, the liquid absorbent having absorbed the moisture flows into the indoor exchanger (21), where the liquid absorbent absorbs the water.
The liquid absorbent is heated to release moisture into room air to humidify the room.

Therefore, according to the present embodiment, in the replenishment humidity exchanger (44), the liquid absorbent absorbs moisture from the replenishing water via the moisture permeable membrane (4b), so that impurities in the liquid absorbent are removed. Contamination can be prevented.

Further, since the liquid absorbent is heated by the heating heat exchanger (45), it is possible to easily absorb moisture in the replenishment humidity exchanger (44). In addition, the water supply portion of the moisture permeable membrane (4b) can be reduced in area. Other functions and effects are the same as those of the eighth embodiment.

[0167]

[Embodiment 10] As shown in FIG. 11, the present embodiment differs from the embodiment 9 in that the water supply means (40) heats the make-up water in the heat source circuit (30) and uses a liquid absorbent. Is used to heat the makeup water.

That is, between the circulation pump (23) and the indoor exchanger (21) in the absorbent circuit (20), the heating heat exchanger (45) and the replenishment humidity exchanger (44) are provided. As shown in FIG. 12, the refilling humidity exchanger (44) is provided with an external tube (4a) and a moisture permeable membrane (4b), as in the ninth embodiment.

As shown in FIG. 12, the heating heat exchanger (45) includes a cylindrical casing (4c) provided outside the circulation passage (24) of the absorbent circuit (20). A water supply pipe (42) is connected to the casing (4c) to supply make-up water, and the casing (4c) is connected to the refilling humidity exchanger. (Four
4) It is connected to the external tube (4a) via the water supply pipe (42).

Therefore, while the liquid absorbent heated by the outdoor exchanger (22) flows through the circulation passage (24) of the heating heat exchanger (45), the casing of the heating heat exchanger (45) Since makeup water is supplied to (4c), the makeup water is heated. The heated make-up water is supplied to the make-up humidity exchanger (44), and the liquid absorbent absorbs water from the make-up water and releases the water in the indoor exchanger (21).

As a result, according to the present embodiment, the circuit configuration can be simplified as compared with the heat source circuit (30) of the ninth embodiment. Other configurations, operations, and effects are the same as those in the ninth embodiment.

[0172]

[Embodiment 11] In this embodiment, as shown in FIG. 13, the water supply means (40) of the above embodiment 10 is composed of a heating heat exchanger (45) and a replenishment humidity exchanger (44). Instead of being separately formed, they are integrally formed with the heating heat exchanger (45) and the replenishment humidity exchanger (44).

That is, as shown in FIG. 14, the outer tube (4a) of the replenishing humidity exchanger (44) is extended, and both ends of the outer tube (4a) are connected to the circulation passage (20) of the absorbent circuit (20). 24) is connected. Further, a donut-shaped partition plate (4d) is provided at the center of the outer tube (4a). A moisture-permeable membrane (4) is provided between the partition plate (4d) and one of the circulation passages (24). 4b) Provided replenishment humidity exchanger (44)
Is configured.

On the other hand, a heat transfer tube (4e) is spirally housed between the partition plate (4d) and the other circulation passage (24) to constitute a heating heat exchanger (45). One end of the heat transfer pipe (4e) is connected to the water supply pipe (42), and the other end is connected to the replenishment humidity exchanger (44).

Therefore, the above makeup water is supplied to the heat transfer tube (4e)
And the heated make-up water is supplied to the replenishment humidity exchanger (44), and the liquid absorbent absorbs moisture from the make-up water, and the indoor regenerator (21) Release.

As a result, according to the present embodiment, the configuration can be further simplified as compared with the tenth embodiment. Other configurations, operations, and effects are the same as those of the tenth embodiment.

[0177]

Other Embodiments of the Invention Embodiments 1 to 1 above
The first heat source circuit (30) is constituted by a vapor compression refrigeration cycle. In the invention according to the eighth aspect, the liquid absorbent in the outdoor exchanger (22) is heated by exhaust gas from an absorption refrigerator or a gas engine. May be configured. in this case,
Since the liquid absorbent is heated by the high-temperature exhaust gas, the size of the outdoor exchanger (22) can be reduced.

The invention according to claims 1 to 15 and the invention according to claims 21 to 23 may perform only the cooling and dehumidifying operation or the heating and humidifying operation. That is, the heat source circuit ( 30) may not include the four-way switching valve (32), and may perform only cooling or heating of the liquid absorbent in the indoor heat exchanger (35).

In the third, fourth and sixth embodiments,
It is not always necessary to provide a heat recovery heat exchanger (25).

Further, the integrated structure of the heating heat exchanger (45) and the replenishment humidity exchanger (44) in Embodiment 11 is not limited to FIG.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing an absorbent circuit and a heat source circuit according to Embodiment 1 of the present invention.

FIG. 2 is a circuit diagram illustrating an absorbent circuit and a heat source circuit according to a second embodiment.

FIG. 3 is a circuit diagram illustrating an absorbent circuit and a heat source circuit according to a third embodiment.

FIG. 4 is a circuit diagram illustrating an absorbent circuit and a heat source circuit according to a fourth embodiment.

FIG. 5 is a circuit diagram illustrating an absorbent circuit and a heat source circuit according to a fifth embodiment.

FIG. 6 is a circuit diagram illustrating an absorbent circuit and a heat source circuit according to a sixth embodiment.

FIG. 7 is a circuit diagram illustrating an absorbent circuit and a heat source circuit according to a seventh embodiment.

FIG. 8 is a circuit diagram showing an absorbent circuit and a heat source circuit according to Embodiment 8.

FIG. 9 is a circuit diagram illustrating an absorbent circuit and a heat source circuit according to a ninth embodiment.

FIG. 10 is an enlarged configuration diagram illustrating a water supply system according to a ninth embodiment.

FIG. 11 is a circuit diagram showing an absorbent circuit and a heat source circuit according to Embodiment 10 of the present invention.

FIG. 12 is an enlarged configuration diagram illustrating a water supply system according to a tenth embodiment.

FIG. 13 is a circuit diagram showing an absorbent circuit and a heat source circuit according to Embodiment 11 of the present invention.

FIG. 14 is an enlarged configuration diagram illustrating a water supply system according to an eleventh embodiment.

FIG. 15 is a characteristic diagram of the partial pressure of water vapor with respect to the temperature of a conventional liquid absorbent.

[Explanation of symbols]

 10 Air conditioner 1A controller 20 Absorbent circuit 21 Indoor exchanger (humidity exchanger) 22 Outdoor exchanger (regeneration exchanger) 24 Circulation passage 25 Heat recovery heat exchanger 26 Bypass passage 30 Heat source circuit 31 Compressor 33 Outdoor heat Heat exchanger (heat exchanger for heat source) 35 Indoor heat exchanger (heat exchanger for temperature control) 37 Heat exchanger for humidity control 38 Heat exchanger for regeneration 3a, 3b Bypass pipe 40 Water supply means 41 Water tank 44 Replenishment humidity Exchanger 45 Heat exchanger for heating (heating means) 4b Moisture permeable membrane

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hisawa Asahina 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries Inside Kanaoka Plant of Sakai Seisakusho Co., Ltd. (72) Inventor Tsutomu Umehara 1304 Kanaokacho, Sakai-shi, Osaka Daikin Industries Stock (72) Inventor Kazuo Yonemoto 1304 Kanaokacho, Sakai City, Osaka Daikin Industries, Ltd.Kanaoka Factory

Claims (23)

[Claims] 1. A closed circuit in which a liquid absorbent is filled and the liquid absorbent circulates, and water vapor is transmitted and received between the first air and the liquid absorbent through a moisture permeable membrane. 1 A humidity exchanger (21) for adjusting the humidity of air and a regeneration exchanger (22) for exchanging water vapor between the second air and the liquid absorbent through a moisture permeable membrane to regenerate the liquid absorbent. And an absorbent circuit (20) in which the humidity exchanger (21) and the regeneration exchanger (22) are connected by a circulation passage (24); and a first air whose humidity is adjusted by the humidity exchanger (21). An air conditioner comprising: a heat exchanger for temperature control (35) for performing heat exchange to adjust the temperature of the first air. 2. The air conditioner according to claim 1, wherein the heat exchanger for temperature control (35) includes a heat source circuit (3) through which the refrigerant circulates.
0) The air conditioner, wherein the temperature of the first air is adjusted by the amount of heat of the refrigerant. 3. The air conditioner according to claim 2, wherein the heat source circuit (30) is provided with a humidity control heat exchanger (37) for controlling the temperature of the liquid absorbent flowing through the humidity exchanger (21). The air conditioner, wherein the humidity control heat exchanger (37) is provided in series or parallel with the temperature control heat exchanger (35). 4. The air conditioner according to claim 2, wherein the heat source circuit (30) is provided with a heat source heat exchanger (33) for controlling the temperature of the second air flowing into the regeneration exchanger (22). An air conditioner, comprising: 5. The air conditioner according to claim 4, wherein the regeneration exchanger (22) is arranged corresponding to the refrigerant inlet side of the heat source heat exchanger (33), and the heat source heat exchanger (33). The air conditioner is provided so as to be positioned downstream of the second air with respect to the second air conditioner. 6. The air conditioner according to claim 4, wherein the heat source circuit (30) is provided with a regeneration heat exchanger (38) for controlling the temperature of the liquid absorbent flowing in the regeneration exchanger (22). The air conditioner, wherein the regeneration heat exchanger (38) is provided in series or parallel with the heat source heat exchanger (33). 7. The air conditioner according to claim 6, wherein the regeneration exchanger (22) is disposed downstream of the second air with respect to the heat source heat exchanger (33). Air conditioner. 8. The air conditioner according to claim 1, wherein the liquid absorbent of the regeneration exchanger (22) is heated by exhaust gas from an absorption refrigerator or a gas engine. 9. The air conditioner according to claim 1, wherein the absorbent circuit (20) is provided with a variable-capacity circulating pump (23) for circulating a liquid absorbent, and the circulating pump (23). An air conditioner comprising a controller (1A) for controlling the capacity of the air conditioner. 10. The air conditioner according to claim 1, wherein the liquid absorbent is controlled to a temperature equal to or higher than the dew point temperature of the first air. 11. The air conditioner according to claim 1, wherein the temperature control heat exchanger (35) is disposed above the humidity exchanger (21). 12. The air conditioner according to claim 4, wherein the absorbent circuit (20) includes a heat recovery heat exchanger (25) for recovering heat from the liquid absorbent flowing out of the regeneration exchanger (22). An air conditioner, which is provided. 13. The air conditioner according to claim 2, wherein the humidity control heat exchanger (37) cools the liquid absorbent flowing in the humidity exchanger (21) of the absorbent circuit (20). And air conditioners. 14. The air conditioner according to claim 3, wherein the regeneration heat exchanger (38) heats the liquid absorbent flowing in the regeneration exchanger (22) of the absorbent circuit (20). Air conditioner. 15. The air conditioner according to claim 3, wherein the regeneration heat exchanger (38) cools the liquid absorbent flowing in the regeneration exchanger (22) of the absorbent circuit (20). Air conditioner. 16. The air conditioner according to claim 1, wherein a water supply means (40) for supplying makeup water to the liquid absorbent is connected to the absorbent circuit (20). apparatus. 17. The air conditioner according to claim 16, wherein the water supply means (40) is provided in the absorbent circuit (20) and supplies supply water via the moisture permeable membrane (4b). An air conditioner characterized by comprising a vessel (44). 18. The air conditioner according to claim 16, wherein the water supply means (40) includes a heating means (45) for heating the makeup water. 19. The air conditioner according to claim 18, wherein the heating means (45) is configured to heat the makeup water with a liquid absorbent. 20. The air conditioner according to claim 19, wherein the replenishment humidity exchanger (44) and the heating means (45) are formed integrally. 21. The air conditioner according to claim 1, wherein a plurality of regeneration exchangers (22) are provided in the absorbent circuit (20), and a plurality of regeneration exchangers are provided corresponding to the regeneration exchangers (22). An air conditioner comprising a conditioning heat exchanger (35). 22. The air conditioner according to claim 21, wherein the regeneration exchanger (22) and the heat exchanger for temperature control (35) are installed on each floor of the house. 23. The air conditioner according to claim 22, wherein the regeneration exchanger (22) and the heat exchanger for temperature control (35) are installed in a ceiling of a common area or in a machine room. Air conditioner.