JPH0743151B2 - Dehumidifier / humidifier and air conditioner equipped with dehumidifier / humidifier - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a dehumidifying / humidifying machine for adjusting moisture in an air-conditioned room and an air conditioner including the dehumidifying / humidifying machine, for example.

(Prior Art) As a conventional example of an apparatus for dehumidifying or humidifying indoor air, for example, there is a heat exchanger described in Japanese Utility Model Laid-Open No. 56-36984. Fig. 6 shows a schematic diagram of the structure. In the figure, 31 is a columnar honeycomb structure, and this structure 31 is a single corrugated cardboard-shaped sheet having the same wave direction. It is constructed by winding up in a column shape, and a large number of parallel gas passages are formed inside. As shown in FIG. 7, the structure 31 is a cylinder divided into three passages of a gas suction passage S, an exhaust gas passage R, and a hot gas passage H by three radial partition walls 32, 33, and 34. Is rotated in the gas passage of the shape. The sheet is a mixture of fibers such as asbestos and pulp and activated carbon, is composed of activated carbon paper obtained by papermaking, further impregnated with a moisture absorbent such as lithium chloride,
For example, the absorbed gas flowing from the outside to the inside of the gas absorption passage S is heated and deodorized while passing through the gas passage in the structure 31, and is dehumidified.

(Problem to be Solved by the Invention) In the above conventional apparatus, when the internal passage region of the structure 31 located on the gas absorption passage S and absorbing moisture from the circulating air is located on the hot gas passage H by rotation. The so-called regeneration is performed by discharging moisture into the hot gas flowing inside.
As described above, in order to continuously perform moisture absorption and regeneration, it is configured as a rotating columnar body. Since a three-dimensional installation space is required for such a columnar shape, when this is installed in a device such as an indoor unit of a separate type air conditioner, the size of the device becomes large. There is a problem of doing.

The present invention has been made in view of the above, and an object thereof is to relieve the shape restriction of the installation space, and as a result, the built-in space can be effectively used and the configuration can be simplified. An object of the present invention is to provide a dehumidifier / humidifier, and to provide an air conditioner equipped with a dehumidifier / humidifier that can be configured more compactly and can improve dehumidification / humidification capabilities.

(Means for Solving the Problem) Therefore, the dehumidifying / humidifying machine according to the first aspect of the present invention has two heat exchangers 1, which are made of a porous material that blocks water permeation and permeates water vapor. 2 is connected to each other by a connecting pipe 3 to form an annular circulation path, and in this circulation path, chlorine is absorbed / exhausted according to the difference in the saturated steam pressure with respect to the partial pressure of steam in the atmosphere. A moisture absorbing / releasing solution such as a lithium aqueous solution is charged, and one heat exchanger 1 is set so that the saturated steam pressure of the moisture absorbing / releasing solution in the heat exchanger 1 is lower than the partial pressure of water vapor in the atmosphere around the heat exchanger 1. On the other hand, the saturated steam pressure of the moisture absorbing / releasing solution in the heat exchanger 2 becomes lower than the steam partial pressure in the atmosphere around the heat exchanger 2 while maintaining the temperature at which the heat exchanger 2 also increases. While maintaining the temperature, The moisture absorbing / releasing solution is configured to circulate.

The dehumidifying / humidifying machine according to the second aspect is the dehumidifying / humidifying machine according to the first aspect, wherein the two heat exchangers 1,
The heat exchanger 1 on the side maintained at the high temperature in 2 is disposed at a position in the height direction which is substantially equal to or lower than the position of the heat exchanger 2 on the side maintained at the low temperature. The moisture absorptive and desorptive solution is configured to circulate in the circulation path by natural convection caused by the temperature difference of the moisture absorptive and desorptive solution inside.

The air conditioner provided with the dehumidifying / humidifying device according to the third aspect of the present invention is the air conditioner main body 10 having an air flow passage 13 therein, through which air blown into the air-conditioning chamber flows through the temperature control heat exchanger 14. The heat exchanger 1 of one of the two heat exchangers according to claim 1 or 2 is disposed on the downstream side of the temperature control heat exchanger 14 in the air flow passage 13, while heat exchange with the outside air is performed. The other heat exchanger 2 is arranged at a possible position.

An air conditioner provided with the dehumidifying / humidifying device according to the fourth aspect is the air conditioner according to the third aspect, wherein:
Alternatively, there is further provided heating means 20 for heating the heat exchanger 2 arranged at a position where heat can be exchanged with the inside air.

An air conditioner provided with the dehumidifying / humidifying device according to claim 5 is the air conditioner according to claim 3 or 4, wherein the outdoor heat connected to the temperature control heat exchanger 14 through a refrigerant pipe. The other heat exchanger 2 is arranged at a position where heat exchange with the outside air that has passed through the exchanger 22 is possible.

(Operation) In the dehumidifying / humidifying machine according to the first claim, for example, in the room where the heating operation is performed by the air conditioner in a low outside air temperature state and the temperature state is high with respect to the outside air. The heat exchanger (hereinafter, referred to as a first heat exchanger) 1 of No. 1 and the other heat exchanger (hereinafter, referred to as a second heat exchanger) 2 are arranged in low temperature outside air as an example. In the moisture absorbing / releasing solution in the first heat exchanger 1 which is in a high temperature state, the saturated steam pressure becomes higher than the steam partial pressure of the room air, and the discharge power of water is generated. The water vapor permeates the heat exchanger 1 configured as described above and is applied to the room air to humidify the room air. Then, the moisture absorbing / releasing solution in the first heat exchanger 1 circulates in the circulation path, so that it is next located in the second heat exchanger 2 in the low temperature state in the outside air. The pressure becomes lower than the partial pressure of water vapor in the outside air, and the water absorbency is generated. As a result, the water vapor in the outside air passes through the heat exchanger 2 made of a porous material and is absorbed in the moisture absorbing / releasing solution. . When the cooling operation is performed by the air conditioner in a high outside air temperature state, the first and second heat exchangers 1 and 2 are maintained in the high and low temperature states opposite to the above, Two
The heat exchanger 2 side releases moisture to the outside air, and the first heat exchanger 1 side absorbs moisture from the indoor air, that is, dehumidifies.

In this way, the moisture absorbing / releasing solution circulates between the first heat exchanger 1 and the second heat exchanger 2, whereby the room air is continuously humidified or dehumidified. In the above structure, the regeneration of the moisture absorptive and desorptive solution that has been humidified or dehumidified in the first heat exchanger 1 is performed by the second heat exchanger arranged at a position apart from the first heat exchanger 1. 2, the heat exchangers 1 and 2 are formed in an arbitrary shape along the shape of the respective installation spaces without causing structural restrictions such as the shape of the rotating body unlike the conventional device. Therefore, for example, even when the air conditioner is installed inside, the space inside the air conditioner can be effectively utilized.

Further, in the dehumidifying / humidifying machine according to the second aspect, circulation of the moisture absorbing / releasing solution in the circulation path is performed by natural convection,
Since it is not necessary to separately provide a pump or the like for performing this circulation, the structure is simplified and the structure can be made more compact.

Further, in the air conditioner equipped with the dehumidifying / humidifying device according to the third aspect, the first heat exchanger 1 flows through the heat exchanger 14 for temperature control to reach a high temperature during heating operation, for example. Humidification during heating is achieved because the air maintains a higher temperature state, and the circulating air that has passed through the temperature control heat exchanger 14 and has a lower temperature during cooling operation maintains a lower temperature state. It is possible to perform operation with improved capacity and dehumidifying capacity during cooling. Further, since there is no structural restriction on each heat exchanger 1 and 2 as described above, for example, a flat plate-shaped first heat exchanger is provided along the wall surface of the air flow passage 13 in the air conditioner body 10.
It is possible to arrange the heat exchanger 1. In this case, the structural specification change of the air conditioner body 10 due to the installation space of the first heat exchanger 1 is minimized, It can be made compact.

Further, in the air conditioner provided with the dehumidifying / humidifying device according to the fourth aspect, for example, the saturated steam pressure of the moisture absorbing / releasing solution inside the second heat exchanger 2 is lower than the steam partial pressure of the outside air during the cooling operation, Therefore, when there is a risk that moisture will not be released on the second heat exchanger 2 side, the second heat exchanger 2 side is heated by heating the second heat exchanger 2 by the heating means 20 to raise the second heat exchanger 2. In this way, it is possible to more reliably perform dehumidification, and as a result, it is possible to continue and reliably dehumidify the indoor air during the cooling operation.

Further, in the air conditioner provided with the dehumidifying / humidifying device according to the fifth aspect, the temperature of the outside air passing through the outdoor heat exchanger 22 acting as an evaporator during the heating operation becomes a lower temperature state, and the cooling condition is reduced. During operation, the temperature of the outside air passing through the outdoor heat exchanger 22, which acts as a condenser, becomes even higher. Then, since the temperature state of the second heat exchanger 2 is maintained by the outside air after passing through the outdoor heat exchanger 22, moisture absorption from the outside air at the time of heating on the second heat exchanger 2 side, Alternatively, the ability to release moisture to the outside air during cooling is increased, and as a result, it is possible to perform an operation in which the humidifying ability to the indoor air during heating on the side of the first heat exchanger 1 or the dehumidifying ability during cooling is increased. .

(Example) Next, specific examples of the dehumidifying / humidifying machine and the air conditioner having the dehumidifying / humidifying machine of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram showing the configuration of the dehumidifying / humidifying machine of the present invention. As shown in the figure, this dehumidifier / humidifier has two heat exchangers, a first heat exchanger 1 and a second heat exchanger 2, and these heat exchangers 1 and 2 block the permeation of water. In addition, it is made of a porous material that is permeable to water vapor, for example, a porous fluorine material. The heat exchangers 1 and 2 are connected to each other by a connecting pipe 3 so as to form an annular circulation path. A moisture absorbing / releasing solution such as an aqueous solution of lithium chloride or an aqueous solution of lithium bromide is filled in the circulation path.

FIG. 2 shows a concentration-pressure diagram of the lithium bromide aqueous solution used as the moisture absorbing / releasing solution. As shown in the figure, in this aqueous solution, the higher the solution temperature is, the larger the saturated water vapor pressure is. Therefore, the temperature state in which the water vapor partial pressure of the solution is higher in the atmosphere than in the atmosphere When, the concentration changes along the equilibrium curve indicated by A in the figure, that is, the concentration rises and the saturated vapor pressure decreases due to the release of water into the atmosphere.
On the other hand, in a low temperature state in which the water vapor partial pressure of the solution is lower than the water vapor partial pressure in the atmosphere, the concentration change along the equilibrium curve shown by B in the figure, that is, the concentration due to absorption of moisture in the air It causes a decrease and an increase in saturated water vapor pressure.

Therefore, in the dehumidifier / humidifier having the above-described configuration, for example, the first heat exchanger 1 is placed in a high-temperature atmospheric atmosphere in which the water vapor partial pressure of the moisture absorptive and desorptive solution inside is higher than the water vapor partial pressure in the atmosphere, By placing the heat exchanger 2 in a low-temperature atmosphere in which the water vapor partial pressure of the moisture absorbing / releasing solution inside is lower than the water vapor partial pressure in the atmosphere, the water content in the solution on the first heat exchanger 1 side is reduced. , Is permeated through the porous material forming the heat exchanger 1 and released into the surrounding atmosphere, and thus the atmosphere around the first heat exchanger 1 is humidified, and at the same time, the second heat exchanger 2 On the side, water vapor in the ambient air passes through the porous material forming the heat exchanger 2 and is absorbed by the moisture absorbing / releasing solution inside, so that the atmosphere around the second heat exchanger 2 is dehumidified. Be seen. By circulating the moisture absorbing / releasing solution between the two heat exchangers 1 and 2, humidification in one heat exchanger 1 and dehumidification in the other heat exchanger 2 are continuously performed. In order to forcibly circulate such a moisture absorptive and desorptive solution, a circulation pump 4 is provided in the connecting pipe 3 as shown in FIG. When the heat exchangers 1 and 2 and the connection pipe 3 are arranged so that the moisture releasing solution circulates in the circulation path, the circulation pump 4 is not necessarily provided.

FIG. 3 shows the first equipped with the dehumidifying / humidifying machine as described above.
1 is a cross-sectional view of an indoor unit (air conditioner body) 10 of a separate type air conditioner in an embodiment. A suction port 11 is provided on the front surface of the casing of the indoor unit 10 (the surface on the left side in the drawing).
A blowout port 12 is provided below the suction port 11, and an air flow passage 13 extending from the suction port 11 to the blowout port 12 is formed inside. Above the air passage 13, the suction port
An indoor heat exchanger (heat exchanger for temperature control) 14 is erected at a position behind 11 and a blowout port 12 is provided more than the indoor heat exchanger 14.
Blower fan 15 is disposed on the side.

On the back side of the indoor unit 10, a heat insulating material 16 that constitutes the back side inner wall surface of the air flow passage 13 is disposed, and along the inner wall surface of this heat insulating material 16, formed into a flat plate shape. Dehumidification /
A first heat exchanger 1 of the humidifier is arranged. Further, a space for disposing the second heat exchanger is provided between the heat insulating material 16 and the installation wall surface 17 of the indoor unit 10, and in this space,
A second flat plate formed in the dehumidifying / humidifying machine at a position facing the first heat exchanger 1 with the heat insulating material 16 interposed therebetween.
A heat exchanger 2 is arranged. And both heat exchangers 1, 2
Are connected to each other by connecting pipes 3 and 3 which penetrate the heat insulating material 16 at the upper part and the lower part. In addition, the installation space of the second heat exchanger 2 has a through hole 1 penetrating the installation wall surface 17.
The upper and lower positions communicate with the outdoors through 8 and 18, respectively.

FIG. 4 is an enlarged cross-sectional view of the heat exchangers 1 and 2 configured in a substantially flat plate shape as described above, showing the second heat exchanger 2 as an example, and showing contact with the air flow. The surface side is formed in a corrugated shape to widen the heat exchange area, and a plurality of flow paths 19, ... 19, which extend in parallel to each other in the direction perpendicular to the paper surface and communicate with each other at both ends, are formed inside the surface side. Internal flow path 19
・ 19 is configured so that the moisture absorbing / releasing solution flows vertically in order. As shown in the figure, on the side of the installation plane of the second heat exchanger 2, a surface heating element having an electric heater for heating the second heat exchanger 2 is provided along the surface ( A heating means) 20 is provided.

In the air conditioner having the above configuration, first, the operating state during heating operation will be described. By operating the blower fan 15, the indoor air sucked from the suction port 11 is the indoor heat exchanger when passing through the indoor heat exchanger 14. The heat of condensation of the refrigerant flowing through the inside of the container 14 is applied and heated, and then blown out from the outlet 12 into the room to heat the room. At this time, since the first heat exchanger 1 is located in the flow passage of the heated air after passing through the indoor heat exchanger 14, it is maintained at a high temperature state. As a result, as described above, The water vapor partial pressure of the moisture absorptive and desorptive solution in the first heat exchanger 1 becomes higher than the water vapor partial pressure of the circulating air, whereby moisture is released and the circulating air is humidified. On the other hand, in the second heat exchanger 2 arranged in the space communicating with the outside, the vapor partial pressure of the moisture absorptive and desorptive solution inside is lower than the vapor partial pressure of the outside air due to the low temperature outside air flowing into this space. Also becomes a low low temperature state, and as a result, absorbs moisture from the outside air. At the same time, a difference in temperature between the first heat exchanger 1 and the second heat exchanger 2 is generated, so that the moisture absorbing / releasing solution inside the first heat exchanger 1 passes through the connecting pipe 3 on the upper side to the second heat exchanger. The moisture absorptive and desorptive solution inside the second heat exchanger moves to the second side and moves to the first heat exchanger 1 side through the lower connecting pipe 3 to cause circulation by natural convection. As a result,
The moisture absorptive and desorptive solution which has become a high temperature state in the first heat exchanger 1 and has been released to the air blown into the room thereafter moves into the second heat exchanger 2 and becomes a low temperature state. As a result, a cycle in which moisture is absorbed from the outside air continuously occurs on the side of the second heat exchanger 2. The outside air flowing into the installation space of the second heat exchanger 2 causes a temperature rise due to heat exchange with the second heat exchanger 2, and this installation space also communicates outdoors with its upper and lower parts. By doing so, natural convection of the outside air is generated between the installation space and the outdoors, whereby a low-temperature outside air inflow state continues in the installation space, and thus the low temperature of the second heat exchanger 2 is maintained. The temperature state and moisture absorption from the outside air are continuously maintained.

On the other hand, when performing the cooling operation in the air conditioner having the above-mentioned configuration, the first heat exchanger 1 is kept in the low temperature state by the circulating air that is cooled when passing through the indoor heat exchanger 14 and is blown out into the room. As a result, moisture is absorbed by the moisture absorptive and desorptive solution inside, and the circulating air is dehumidified. At this time, at the same time, the second heat exchanger 2 is brought into the high temperature state by the high temperature outside air to release the moisture to the outside air, and is operated in the absorbing and releasing state in the cycle reverse to the heating operation. The Rukoto. At this time, when the water vapor partial pressure of the moisture absorptive and desorptive solution inside the second heat exchanger 2 is lower than the water vapor partial pressure of the outside air, moisture is not released to the outside air on the side of the second heat exchanger 2. Therefore, in this case, the above-mentioned surface heating element 20 is energized to raise the temperature of the second heat exchanger 2, and thereby the moisture is surely released on the second heat exchanger 2 side. I am trying.

FIG. 5 shows a schematic configuration diagram of the air conditioner in the second embodiment in which the second heat exchanger 2 is provided inside the outdoor unit 21 in the separate type air conditioner. In the second embodiment, the configuration on the indoor unit 10 side in which the first heat exchanger 1 is installed is substantially the same as that of the first embodiment, and therefore the same reference numerals are given and the description thereof is omitted. The second heat exchanger 2 is arranged at a position close to the outdoor heat exchanger 22 in the outdoor unit 21 that internally houses the outdoor heat exchanger 22 and the outdoor fan 23. A circulation pump 4 is provided in a connecting pipe 3 that connects the second heat exchanger 2 and the first heat exchanger 1 in the indoor unit 10 to each other.

In the air conditioner configured as described above, the moisture absorbing / releasing solution is supplied to the first heat exchanger 1 and the second heat exchanger by operating the circulation pump 4.
It circulates with the heat exchanger 2, and at this time, for example, during the heating operation, as in the first embodiment, the first heat exchanger 1 humidifies the air blown into the room and the second heat exchanger. Two
The side absorbs moisture from the outside air. During this heating operation,
The outdoor heat exchanger 22 acts as an evaporator, and the temperature of the outside air passing through the outdoor heat exchanger 22 becomes lower.
By configuring the second heat exchanger 2 to be cooled by the low temperature outside air, the temperature state of the second heat exchanger 2 is maintained at a lower temperature, and as a result,
The operation in which the moisture absorption capacity of the second heat exchanger 2 is increased and therefore the humidification capacity of the first heat exchanger 1 is increased is performed.

On the other hand, during the cooling operation in which the moisture absorption / desorption cycle is the reverse of the above, when the outdoor heat exchanger 22 acting as a condenser is passed through, the second heat exchanger 2 is in a higher temperature state due to the higher temperature outside air. And as a result, this second heat exchanger 2
Therefore, the dehumidifying capacity on the side of the first heat exchanger 1 increases, and thus the operation of increasing the dehumidifying capacity on the indoor air on the side of the first heat exchanger 1 is performed.

In the heat exchanger for dehumidifying and humidifying the above-mentioned conventional activated carbon paper impregnated with lithium chloride, lithium chloride is scattered during high-humidity operation or when it gets wet with water. However, the heat exchangers 1 and 2 are made of a porous material that blocks the permeation of water. Therefore, the wear of lithium chloride or the like does not occur, and as a result, the above dehumidifying / humidifying ability can be continuously maintained.

Although the specific embodiments of the present invention have been described above, the above embodiments are not intended to limit the present invention, and various modifications can be made within the scope of the present invention. For example, a heat exchanger. The constituent materials 1 and 2 and the moisture absorptive and desorptive solution can be configured by using other materials and other solutions having the same functions and characteristics other than those described above. Further, the above dehumidifying / humidifying machine may be configured, for example, by arranging the two heat exchangers 1 and 2 inside and outside, respectively, as a device independent of the air conditioner, or by being installed in a device other than the air conditioner. Further, although the separate type air conditioners have been described in the above embodiments as examples, the present invention can be applied to other types of air conditioners.

(Effect of the invention) As described above, in the dehumidifying / humidifying machine according to the first aspect of the present invention, the moisture absorbing / releasing solution inside the one heat exchanger side humidifies the atmosphere around the heat exchanger, Alternatively, dehumidification is continuously performed, and regeneration of the moisture absorptive and desorptive solution is
It is performed in the other heat exchanger arranged at a position apart from the above heat exchanger. Therefore, each heat exchanger can be configured in an arbitrary shape along the shape of the respective installation space. For example, even when the heat exchanger is installed in an air conditioner, an arrangement that effectively utilizes the space inside the air conditioner. It can be in a state.

Further, in the dehumidifying / humidifying machine according to the second aspect, circulation of the moisture absorbing / releasing solution in the circulation path is performed by natural convection,
Since it is not necessary to separately provide a pump or the like for performing this circulation, the structure is simplified and the structure can be made more compact.

In the air conditioner provided with the dehumidifying / humidifying device according to the third aspect, the heat exchanger on the indoor side becomes higher in temperature during heating and more in air cooling by the circulating air after passing through the heat exchanger for temperature control. Since it is maintained at a low temperature, it is possible to perform operation with improved humidifying capacity during heating and dehumidifying capacity during cooling, and for example, along the wall surface of the air flow passage in the air conditioner body Since it is possible to adopt a configuration such as disposing a heat exchanger in the shape of the air conditioner, the structural specification of the air conditioner main body can be changed as much as possible and the configuration can be made more compact.

Further, in the air conditioner provided with the dehumidifying / humidifying device according to the fourth aspect, for example, by heating the heat exchanger arranged in the outside air during the cooling operation, the outside air on the heat exchanger side is changed to the outside air. Can be more reliably discharged, and as a result, it is possible to continuously and reliably dehumidify the indoor air during the cooling operation.

Further, in the air conditioner provided with the dehumidifying / humidifying device according to the fifth aspect, the temperature of the heat exchanger for exchanging heat with the outside air is maintained by the outside air passing through the outdoor heat exchanger, and this heat Since the temperature of the exchanger is maintained at a lower temperature during heating and at a higher temperature during cooling, the humidifying capacity of the indoor heat exchanger during heating to indoor air or the dehumidifying capacity during cooling is increased. You can drive.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing the configuration of the dehumidifying / humidifying machine of the present invention,
FIG. 2 is a characteristic diagram showing concentration-pressure characteristics of an aqueous lithium bromide solution used as a moisture absorbing / releasing solution filled in the dehumidifying / humidifying machine, and FIG. 3 is a dehumidifying / humidifying machine in the first embodiment of the present invention. FIG. 4 is a sectional view of an indoor unit of an air conditioner equipped with the above, FIG. 4 is a partially enlarged sectional view of a second heat exchanger in the air conditioner, and FIG.
Fig. 6 is a schematic diagram of the overall configuration of an air conditioner equipped with a humidifier, Fig. 6 is a perspective view of a conventional heat exchanger having dehumidifying / humidifying functions, and Fig. 7
The figure is an explanatory view showing a partitioned area of a gas passage for the conventional heat exchanger. 1 ... First heat exchanger, 2 ... Second heat exchanger, 3 ... Connection piping, 10 ... Indoor unit (air conditioner body), 13 ... Air flow passage, 14 ... Indoor heat exchanger (Heat exchanger for temperature control), 20 ……
Surface heating element (heating means), 22 ... Outdoor heat exchanger.

Claims (5)

[Claims] 1. Two heat exchangers (1) (2) composed of a porous material that blocks water permeation and permeates water vapor.
Are connected to each other by a connecting pipe (3) to form an annular circulation path, and water is absorbed and discharged in the circulation path according to the difference in the saturated steam pressure with respect to the partial pressure of steam in the atmosphere. A moisture absorbing / releasing solution such as an aqueous solution of lithium chloride is filled, and one heat exchanger (1) is filled with saturated moisture vapor pressure of the moisture absorbing / releasing solution in the heat exchanger (1) around the heat exchanger (1). The heat exchanger (2) is maintained at a temperature higher than the partial pressure of water vapor in the atmosphere, while the saturated water vapor pressure of the moisture absorbing / releasing solution in the heat exchanger (2) is kept in the heat exchanger (2). ) A dehumidifier / humidifier characterized in that the moisture absorbing / releasing solution is circulated in the circulation path while being maintained at a temperature lower than the partial pressure of water vapor in the surrounding atmosphere. 2. The heat exchanger (1) on the side maintained at a high temperature in the two heat exchangers (1) and (2) is substantially the same as the heat exchanger (2) on the side maintained at a low temperature. Arranged at a position in the height direction below the position, by natural convection caused by the temperature difference of the moisture absorbing / releasing solution inside both heat exchangers (1) and (2),
The dehumidifying / humidifying machine according to claim 1, wherein the moisture absorbing / releasing solution is configured to circulate in the circulation path. 3. The temperature control heat exchanger (1
4), an air conditioner main body (10) having an air flow passage (13) inside through the air flow passage (13) in the air flow passage (13) downstream of the temperature control heat exchanger (14). 2 One of the two heat exchangers according to claim 1 (1)
An air conditioner equipped with a dehumidifying / humidifying machine, characterized in that the other heat exchanger (2) is arranged at a position where heat can be exchanged with the outside air. 4. The dehumidifying / humidifying machine according to claim 3, further comprising heating means (20) for heating the heat exchanger (2) arranged at a position where heat can be exchanged. Air conditioner equipped with. 5. The other heat exchanger (2) at a position where heat can be exchanged with the outside air that has passed through an outdoor heat exchanger (22) connected to the temperature control heat exchanger (14) by a refrigerant pipe. An air conditioner provided with the dehumidifying / humidifying device according to claim 3 or 4, wherein the air conditioner is provided.