JP4225181B2 - Humidity control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moisture conditioning device with a adsorbent supported directly on heat exchangers in a refrigerating circuit, having improved dehumidifying or humidifying capability. <P>SOLUTION: On the upstream side of a distribution passage where heat exchangers 3, 5 are arranged on which the adsorbent is supported, an air heat exchanger 6 is arranged for making heat exchange between first air OA and second air RA. The air is cooled or heated to a preset temperature, thus improving the adsorption effect of moisture on the air with the adsorbent or the desorption effect of moisture on the air with the adsorbent. <P>COPYRIGHT: (C)2005,JPO&amp;NCIPI

Description

  The present invention relates to a humidity control apparatus that adjusts the humidity of air, and particularly relates to a humidity control apparatus that includes an adsorbent that performs adsorption and desorption of moisture.

  2. Description of the Related Art Conventionally, a humidity control apparatus that performs dehumidification or humidification of air using an adsorption action and a desorption action of moisture by an adsorbent is known.

  This humidity control apparatus has a circulation passage for circulating outdoor air or room air in a casing. In this circulation passage, piping of a refrigerant circuit (heat) that circulates a refrigerant and performs a vapor compression refrigeration cycle. (Exchanger) is arranged. This pipe functions as an evaporator or a condenser depending on the circulation direction of the refrigerant. Furthermore, a mesh container made of a mesh-like member in which an adsorbent is sealed is provided in the circulation passage around the pipe.

  The adsorbent of the mesh container is cooled by the heat absorbed by the refrigerant when the pipe functions as an evaporator. Then, during this cooling, the moisture of the indoor air or the outdoor air is adsorbed by the adsorbent through the mesh member. Indoor air or outdoor air in which moisture is adsorbed by the adsorbent is supplied into the room, for example, during a dehumidifying operation in summer.

  On the other hand, the adsorbent is heated by the refrigerant when the pipe functions as a condenser. Then, the moisture adsorbed by the adsorbent is released to indoor air or outdoor air by this heating, and the adsorbent is regenerated. And the indoor air or outdoor air to which the water | moisture content was provided by adsorption agent is supplied indoors, for example at the time of humidification driving | operation in winter (refer patent document 1).

  By the way, the humidity control apparatus disclosed in Patent Document 1 is provided with a pipe for cooling or heating the adsorbent by circulation of the refrigerant and a mesh container which is a means for adsorbing moisture. For this reason, in this humidity control apparatus, since the heat exchanger and the mesh container are separate members, there are problems that the number of parts increases, the structure of the entire apparatus becomes complicated, or the entire apparatus increases in size. .

As a humidity control apparatus that solves such a problem, an apparatus that directly supports the adsorbent on the surface of the heat exchanger can be considered. In this humidity control apparatus, the heat of evaporation or condensation of the refrigerant in the heat exchanger can be directly used for adsorption or regeneration of the adsorbent, and the heat exchanger and the adsorbent can be integrally formed. Therefore, it is considered that the number of parts of the humidity control device is reduced and the structure of the entire device can be simplified or downsized.
JP-A-8-189667

  However, in the humidity control apparatus in which the adsorbent is directly supported on the heat exchanger as described above, heating or cooling of indoor air or outdoor air and moisture adsorption / desorption by the adsorbent are performed simultaneously. If the heat exchange rate is insufficient, the adsorption / desorption effect by the adsorbent is likely to be impaired. In this case, there is a problem that the dehumidifying ability or the humidifying ability of the humidity control device is lowered.

  The present invention has been made in view of such points, and an object of the present invention is to improve the dehumidifying ability or the humidifying ability in a humidity control apparatus in which an adsorbent is directly supported on a heat exchanger of a refrigerant circuit. It is in.

  In the present invention, an air heat exchanger for exchanging heat between the first air and the second air is disposed on the upstream side of the flow passage in which the heat exchanger carrying the adsorbent is disposed, and the air is preliminarily determined. By cooling or heating to this temperature, the adsorption effect of moisture on the air in the adsorbent or the desorption effect of moisture on the air in the adsorbent is improved.

More specifically, the first invention is premised on a humidity control apparatus that takes in indoor air and discharges it outside the room, and takes in outdoor air, adjusts the humidity, and supplies the air after humidity adjustment to the room . The humidity control apparatus is provided with a first heat exchanger (3) and a second heat exchanger (5) each having an adsorbent that adsorbs and desorbs moisture on the surface thereof, so that the refrigerant A refrigerant circuit (1) that performs a refrigeration cycle by circulation, a first heat exchanger chamber (71) in which the first heat exchanger (3) is accommodated, and a second in which the second heat exchanger (5) is accommodated. A heat exchanger chamber (72), a first inflow passage (61) formed on the upstream side of the first and second heat exchanger chambers (71, 72) through which room air flows, and the first and second heat exchanges A second inflow passage (63) formed on the upstream side of the chamber (71, 72) through which outdoor air flows, and formed on the downstream side of the first and second heat exchanger chambers (71, 72) to enter the room. A first outflow passage (62) through which supplied air flows, and a second outflow passage (64) formed on the downstream side of the first and second heat exchanger chambers (71, 72) through which the air discharged to the outside flows. ) and the casing (17) which is formed, the refrigerant circuit (1), the first heat exchanger (3) A first state for condensing refrigerant Evaporation of medium simultaneously the second heat exchanger (5), the first heat exchanger (3) at the same time the second heat exchanger when condensing the refrigerant in the refrigerant (5) The refrigerant control means (9) for switching to the second state to be evaporated, the first inflow passage (61) and the first heat exchanger chamber (71) are in communication with each other, and at the same time, the second inflow passage (63) and the second heat are communicated. The first state in which the exchanger chamber (72) is in communication, the first inflow passage (61) and the second heat exchanger chamber (72) are in communication with the second inflow passage (63) and the first heat exchange. The first switching means (33a) that can be switched to the second state for communicating with the chamber (71), the first outflow passage (62), and the first heat exchanger chamber (71) are simultaneously communicated with each other. 2 The first state in which the outflow passage (64) and the second heat exchanger chamber (72) are in communication with each other, and the second state in which the first outflow passage (62) and the second heat exchanger chamber (72) are in communication with each other. In the second state in which the outflow passage (64) and the first heat exchanger chamber (71) communicate with each other. Switchable second switching means (33b) and air heat exchange arranged on the upstream side of the first and second heat exchanger chambers (71, 72) to exchange heat between the taken outdoor air and indoor air. (6) , the refrigerant control means (9) sets the refrigerant circuit (1) in the first state, the first switching means (33a) in the second state, and the second switching means (33b) in the second state. The first operation for setting the first state, the refrigerant control means (9) sets the refrigerant circuit (1) to the second state, the first switching means (33a) to the first state, and the second switching means (33b) to the second state. A dehumidifying operation for alternately switching between the second operation to be in two states is performed .

In addition, the second invention is premised on a humidity control apparatus that takes in indoor air and discharges it outside the room, and takes in outdoor air, adjusts the humidity, and supplies the air after humidity adjustment to the room. The humidity control apparatus is provided with a first heat exchanger (3) and a second heat exchanger (5) each having an adsorbent that adsorbs and desorbs moisture on the surface thereof, so that the refrigerant A refrigerant circuit (1) that performs a refrigeration cycle by circulation, a first heat exchanger chamber (71) in which the first heat exchanger (3) is accommodated, and a second in which the second heat exchanger (5) is accommodated. A heat exchanger chamber (72), a first inflow passage (61) formed on the upstream side of the first and second heat exchanger chambers (71, 72) through which room air flows, and the first and second heat exchanges A second inflow passage (63) formed on the upstream side of the chamber (71, 72) through which outdoor air flows, and formed on the downstream side of the first and second heat exchanger chambers (71, 72) to enter the room. A first outflow passage (62) through which supplied air flows, and a second outflow passage (64) formed on the downstream side of the first and second heat exchanger chambers (71, 72) through which the air discharged to the outside flows. ) And the refrigerant circuit (1) are connected to the first heat exchanger (3). The first state in which the refrigerant in the second heat exchanger (5) is condensed simultaneously with the evaporation of the medium, and the refrigerant in the second heat exchanger (5) is simultaneously condensed with the refrigerant in the first heat exchanger (3). The refrigerant control means (9) for switching to the second state to be evaporated, the first inflow passage (61) and the first heat exchanger chamber (71) are in communication with each other, and at the same time, the second inflow passage (63) and the second heat are communicated. The first state in which the exchanger chamber (72) is in communication, the first inflow passage (61) and the second heat exchanger chamber (72) are in communication with the second inflow passage (63) and the first heat exchange. The first switching means (33a) that can be switched to the second state for communicating with the chamber (71), the first outflow passage (62), and the first heat exchanger chamber (71) are simultaneously communicated with each other. 2 The first state in which the outflow passage (64) and the second heat exchanger chamber (72) are in communication with each other, and the second state in which the first outflow passage (62) and the second heat exchanger chamber (72) are in communication with each other. In the second state in which the outflow passage (64) and the first heat exchanger chamber (71) communicate with each other. Switchable second switching means (33b) and air heat exchange arranged on the upstream side of the first and second heat exchanger chambers (71, 72) to exchange heat between the taken outdoor air and indoor air. (6), the refrigerant control means (9) sets the refrigerant circuit (1) in the first state, the first switching means (33a) in the first state, and the second switching means (33b) in the first state. A first operation for setting two states, the refrigerant control means (9) sets the refrigerant circuit (1) to the second state, the first switching means (33a) to the second state, and the second switching means (33b) to the second state. A humidifying operation for alternately switching the second operation to be in the 1 state is performed.

In the first and second inventions, outdoor air and indoor air are taken into the humidity control apparatus. One of the outdoor air and the indoor air flows into the first heat exchanger (3), and the other air flows into the second heat exchanger (5). In addition, the first heat exchanger (3) and the second heat exchanger (5) are configured such that one of the heat exchangers is switched by switching the circulation direction of the refrigerant in the refrigerant circuit (1) by the refrigerant control means (9). Functions as a condenser, and the other heat exchanger functions as an evaporator.

The outdoor air and the indoor air are heat-exchanged by the air heat exchanger (6) on the upstream side of the first and second heat exchangers (3, 5). Here, the temperature of the outdoor air is at high condition than the temperature of the room air, the outdoor air is cooled by the indoor air. The cooled outdoor air flows into the first heat exchanger (3), for example. Here, when the first heat exchanger (3) functions as an evaporator by the refrigerant control means (9), for example, moisture in the outdoor air is adsorbed by the adsorbent carried on the first heat exchanger (3). Is done. At this time, since the outdoor air is cooled by the air heat exchanger (6), the moisture adsorption effect by the adsorbent is improved.

The temperature of the outdoor air in the lower condition than the temperature of the room air, outdoor air is warmed by indoor air. The heated outdoor air flows into the second heat exchanger (5), for example. Here, when the second heat exchanger (5) functions as a condenser by the refrigerant control means (9), for example, the moisture of the adsorbent carried on the second heat exchanger (5) is released to the outdoor air. The At this time, since the outdoor air is heated in advance by the air heat exchanger (6), the moisture desorption effect by the adsorbent is improved.

A third invention is the humidity control apparatus according to the first or second invention, wherein the air heat exchanger (6) is a sensible heat exchanger in which outdoor air and indoor air flow in directions orthogonal to each other to exchange heat. It is characterized by being comprised. Here, "the outdoor air and the indoor air are orthogonal to each other" is not necessarily the outdoor air and the indoor air intersect at right angles, if the outdoor air and the room air cross each other, the angle is how It may be an angle.

In the third aspect of the invention, outdoor air and room air exchange sensible heat with a cross flow sensible heat exchanger.

According to a fourth aspect of the present invention, in the humidity control apparatus of the first or second aspect , the air heat exchanger (6) is disposed across the outdoor air circulation passage and the indoor air circulation passage and is rotatable. It is characterized by comprising a sensible heat exchanger.

In the fourth aspect of the invention, by rotating a rotary (rotor-type) sensible heat exchanger, a portion of the sensible heat exchanger through which the outdoor air circulates and a portion of the sensible heat exchanger through which the indoor air circulates. The sensible heat is indirectly exchanged between the outdoor air and the indoor air.

According to a fifth invention, in the humidity control apparatus of the first or second invention, the air heat exchanger (6) is a total heat exchanger.

In the fifth aspect of the invention, outdoor air and room air exchange sensible heat with the total heat exchanger. Further, the outdoor air and the indoor air are subjected to latent heat exchange by the total heat exchanger.

A sixth invention is the humidity control apparatus according to any one of the first to fifth inventions, wherein the first heat exchanger chamber (71) and the second heat exchanger chamber (72) are arranged adjacent to each other. The first inflow passage (61) and the first outflow passage (62) are arranged along one end surface in the thickness direction in which each surface of the first and second heat exchanger chambers (71, 72) is continuous. Formed and overlapped in the thickness direction of the first and second heat exchanger chambers (71, 72). The second inflow passage (63) and the second outflow passage (64) The first and second heat exchanger chambers (71, 72) are formed along the other end surface of the second heat exchanger chamber (71, 72) facing the one end surface in the thickness direction. It is characterized by being arranged so as to overlap in the thickness direction.

In the sixth aspect of the present invention, one surface forming the first inflow passage (61) and the first outflow passage (62) is constituted by one continuous end surface of the first and second heat exchanger chambers (71, 72). Is done. One surface forming the second inflow passage (63) and the second outflow passage (64) is constituted by the other end surface of the first and second heat exchanger chambers (71, 72).

In the first aspect of the present invention, the air heat exchanger (6) for exchanging heat between outdoor air and room air is provided upstream of the first and second heat exchangers (3, 5). For this reason, for example, when outdoor air cooled by the air heat exchanger (6) flows through the first heat exchanger (3) functioning as an evaporator, the adsorption carried on the first heat exchanger (3). The moisture adsorption effect of the agent can be improved. Therefore, when this humidity control apparatus is used for dehumidifying air, the dehumidifying effect can be improved. For example, when the outdoor air heated by the air heat exchanger (6) flows through the first heat exchanger (3) functioning as a condenser, the adsorption carried by the first heat exchanger (3). The effect of desorbing moisture in the agent can be improved. Therefore, when this humidity control apparatus is used for air humidification, the humidification effect can be improved.

According to the third aspect of the invention, the outdoor air and the indoor air can be heat-exchanged by the cross flow type sensible heat exchanger. This cross flow type sensible heat exchanger is relatively inexpensive and does not incur a running cost. Therefore, the cost related to the air heat exchanger (6) can be reduced.

According to the fourth aspect of the invention, the outdoor air and the indoor air can be heat-exchanged by the rotary sensible heat exchanger. This rotary sensible heat exchanger can change the heat exchange rate between outdoor air and indoor air by changing the rotational speed. For this reason, the temperature of outdoor air or room air can be adjusted, and the amount of moisture adsorbed in the adsorbent or the amount of moisture desorbed in the adsorbent can be adjusted. Therefore, the humidity adjustment of this humidity control apparatus can be performed finely.

According to the fifth aspect , heat can be exchanged between the outdoor air and the room air by the total heat exchanger. This total heat exchanger can perform latent heat exchange between outdoor air and indoor air. For this reason, when the humidity of the outdoor air is higher than the humidity of the indoor air, the moisture of the outdoor air is taken to the second air by the total heat exchanger. Therefore, when this outdoor air is supplied indoors at the time of dehumidification, the dehumidifying ability of this humidity control apparatus can be improved. Also, when the humidity of the outdoor air is lower than the humidity of the room air, moisture in the room air is imparted to the outdoor air by the total heat exchanger. Therefore, when this outdoor air is supplied into the room during humidification, the humidifying ability of the humidity control apparatus can be improved.

According to the sixth aspect of the invention, one surface forming the first inflow passage (61) and the first outflow passage (62), and one surface forming the first and second heat exchanger chambers (71, 72), And one surface forming the second inflow passage (63) and the second outflow passage (64) and one surface forming the first and second heat exchanger chambers (71, 72). be able to. Therefore, the air circulation passage and the first and second heat exchanger chambers (71, 72) can be formed compactly, and the humidity control apparatus can be miniaturized.

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

<< Embodiment of the Invention >>
The humidity control apparatus according to the present embodiment is a so-called ventilation-type humidity control apparatus that exhausts indoor air to the outside and supplies outdoor air to the room. The humidity control apparatus is configured to perform switching between a dehumidifying operation for supplying dehumidified air to the room and a humidifying operation for supplying humidified air to the room. Further, the humidity control apparatus includes a refrigerant circuit (1) and two adsorbents, and is configured to perform a batch type adsorption / regeneration operation with the adsorbents.

  First, the refrigerant circuit (1) provided in the humidity control apparatus will be described with reference to FIGS.

  As shown in FIG. 1, the refrigerant circuit (1) includes a compressor (7) as a compression mechanism, a four-way switching valve (9) as a refrigerant control means, a first heat exchanger (3), an expansion The expansion valve (11), which is a mechanism, and the second heat exchanger (5) are sequentially connected to form a closed circuit. The refrigerant circuit (1) is filled with a refrigerant, and is configured to perform a vapor compression refrigeration cycle by circulating the refrigerant. The four-way switching valve (9) is provided with first to fourth ports (9a, 9b, 9c, 9d) to which the piping of the refrigerant circuit (1) can be connected.

  In the refrigerant circuit (1), the discharge port of the compressor (7) is connected to the first port (9a) of the four-way switching valve (9). The third port (9c) of the four-way switching valve (9) is connected to one end of the first heat exchanger (3). The other end of the first heat exchanger (3) is connected to one end of the second heat exchanger (5) via an expansion valve (11). The other end of the second heat exchanger (5) is connected to the fourth port (9d) of the four-way switching valve (9). The second port (9b) of the four-way switching valve (9) is connected to the suction port of the compressor (7).

  In the four-way selector valve (9), the first port (9a) and the third port (9c) communicate with each other, and at the same time the second port (9b) and the fourth port (9d) communicate with each other (FIG. 1 (A ) And the state in which the first port (9a) and the fourth port (9d) communicate with each other and the second port (9b) and the third port (9c) communicate with each other (see FIG. 1B). It is possible to switch to the state shown). That is, the refrigerant control means (9) switches the refrigerant circulation direction in the refrigerant circuit (1) to evaporate the refrigerant in the first heat exchanger (3) and at the same time the second heat exchanger (5). It is possible to switch between a state in which the refrigerant is condensed and a state in which the refrigerant in the second heat exchanger (5) is evaporated at the same time as the refrigerant in the first heat exchanger (3) is condensed.

  As shown in FIG. 2, the first heat exchanger (3) and the second heat exchanger (5) are each constituted by a cross fin type fin-and-tube heat exchanger. Specifically, the first heat exchanger (3) and the second heat exchanger (5) are made of a large number of aluminum fins (13) formed in a rectangular plate shape and copper made through the fins (13). The heat transfer tube (15) is provided.

  An adsorbent is supported on the outer surfaces of the fins (13) and the heat transfer tubes (15) by dip molding (dip molding). As this adsorbent, functionalities such as zeolite, silica gel, activated carbon, hydrophilic or water-absorbing organic polymer material, ion exchange resin material having carboxylic acid group or sulfonic acid group, thermosensitive polymer, etc. Examples include polymer materials.

  In addition, although the said 1st heat exchanger (3) and 2nd heat exchanger (5) are comprised by the fin and tube type heat exchanger of a cross fin type, it is not restricted to this, Other types A heat exchanger such as a corrugated fin heat exchanger may be used.

  Further, in the present embodiment, the adsorbent is supported by dip molding on the outer surface of each fin (13) and the heat transfer tube (15), but not limited to this, as long as the performance as an adsorbent is not impaired. An adsorbent may be supported on the outer surface by a method.

  Next, the internal structure of the casing (17) in the humidity control apparatus according to the present embodiment will be described with reference to FIGS. 3, 4, 5, and 6. FIG. 3A is a plan view of the humidity control device, FIG. 3B is a left side view of the humidity control device, FIG. 3C is a right side view of the humidity control device, and FIG. The rear view of a humidity control apparatus is shown, respectively. Further, in the description of the present embodiment, “up”, “down”, “left”, “right”, “front”, “rear”, “front”, and “back” indicate the front of the humidity control apparatus shown in FIG. This means directionality when viewed from the side (the lower side in FIG. 3A).

  The casing (17) is formed in a rectangular parallelepiped flat box shape. The casing (17) has a first panel (17a) formed on the innermost side and a second panel (17b) formed on the frontmost side. Further, the casing (17) has a casing left side plate (17c) formed on the left side and a casing right side plate (17d) formed on the right side. Further, a casing top plate (17e) is formed on the upper side of the casing (17), and a casing bottom plate (17f) is formed on the lower side.

  The first panel (17a) is formed with a first suction port (19) for taking in outdoor air (OA) at the upper part on the left side, and a second inlet for taking in indoor air (RA) at the upper part on the right side. A suction port (21) is formed. On the other hand, the second panel (17b) is formed with a first air outlet (23) for supplying humidity-controlled air (SA) to the left side of the second panel (17b). The 2nd blower outlet (25) discharged | emitted in this is formed.

  The interior of the casing (17) is roughly partitioned into three spaces in the direction from the first panel (17a) to the second panel (17b).

  The space formed near the second panel (17b) of the casing (17) is partitioned into three spaces on the left and right. Of these three spaces, the left space constitutes the supply side flow path (41), and the right space constitutes the exhaust side flow path (42). Further, the space sandwiched between the air supply side flow path (41) and the exhaust side flow path (42) constitutes an accommodation space (90) that is a closed space. In the housing space (90), the compressor (7) of the refrigerant circuit (1) is installed.

  The air supply side channel (41) communicates with the room through the first air outlet (23). An air supply fan (51) is installed in the air supply side channel (41). On the other hand, the exhaust-side flow path (42) communicates with the outdoors via the second air outlet (25). An exhaust fan (52) is installed in the exhaust side flow path (42).

  The space formed near the first panel (17a) of the casing (17) is further partitioned vertically. In the upper space, a sensible heat exchanger (air heat exchanger) (6) is arranged. The sensible heat exchanger (6) is a so-called cross-flow sensible heat exchanger having two heat exchange passages (6a, 6b) formed so as to cross each other. This sensible heat exchanger (6) is arranged in such a manner that one end face of which neither flow path is open is along the casing top plate (17e). The space near the first panel (17a) is divided into left and right by a sensible heat exchanger (6).

  The left space of the sensible heat exchanger (6) constitutes the suction side left flow path (43), and the right space constitutes the suction side right flow path (44). The suction-side left flow path (43) communicates with the outside through the first suction port (19). On the other hand, the suction side right flow path (44) communicates with the room through the second suction port (21).

  The space formed at the center in the depth direction of the casing (17) is roughly divided into three left and right spaces by a left partition plate (20a) and a right partition plate (20b) formed extending in the front-rear direction. Yes. Further, the space between the left partition plate (20a) and the right partition plate (20b) is divided into a first heat exchanger chamber (71) and a second heat exchanger chamber (72) by the central partition plate (20c). It is divided into.

  The 1st heat exchanger room (71) is formed in the back | inner side of the center partition plate (20c), and the said 1st heat exchanger (3) is installed. On the other hand, the second heat exchanger chamber (72) is formed on the front side of the central partition plate (20c), and the second heat exchanger (5) is disposed. The first heat exchanger chamber (71) and the second heat exchanger chamber (72) are arranged adjacent to each other.

  The space on the left side of the left partition plate (20a) is partitioned up and down. In this space, the upper space forms the left upper flow path (first inflow passage) (61), and the lower space forms the left lower flow path (first outflow passage) (62). . That is, the left upper flow path (61) and the left lower flow path (62) are one end surface in the thickness direction in which each surface of the first heat exchange chamber (71) and the second heat exchange chamber (72) is continuous ( It is formed along the left partition plate (20a) and is disposed so as to overlap in the thickness direction (vertical direction) of the first heat exchange chamber (71) and the second heat exchange chamber (72).

  The left upper channel (61) communicates with the suction side right channel (44) via the first heat exchange passage (6a) of the sensible heat exchanger (6), while the air supply side channel (44) It is partitioned from 41). The lower left channel (62) communicates with the air supply channel (41), and is partitioned from any suction channel.

  The space on the right side of the right partition plate (20b) is partitioned vertically. In this space, the upper space constitutes the right upper flow path (second inflow passage) (63), and the lower space constitutes the right lower flow path (second outflow passage) (64). . That is, the right upper flow path (63) and the right lower flow path (64) are the end faces where the respective faces of the first heat exchanger chamber (71) and the second heat exchanger chamber (72) are continuous. Is formed along the opposing surface (the right partition plate (20b)) and is disposed so as to overlap the thickness direction of the first heat exchanger chamber (71) and the second heat exchanger chamber (72). ing.

  The upper right channel (63) communicates with the suction side left channel (43) via the second heat exchange passage (6b) of the sensible heat exchanger (6), while the exhaust side channel (42 ). The right lower flow path (64) communicates with the exhaust side flow path (42), but is partitioned from any suction-side flow path.

  As shown in FIG. 3B, the left partition plate (20a) has a first upper left opening (31a), a second upper left opening (31b), a first lower left opening (31c), and a second lower left opening (31d). ) Is formed. The first upper left opening (31a) is formed in the upper part on the back side of the left partition plate (20a), and the second upper left opening (31b) is formed in the upper part on the near side in the left partition plate (20a). The first lower left opening (31c) is formed in the lower part on the back side of the left partition plate (20a), and the second lower left opening (31d) is formed in the lower part on the near side of the left partition plate (20a). Yes.

  As shown in FIG. 3C, the right partition plate (20b) includes a first upper right opening (32a), a second upper right opening (32b), a first lower right opening (32c), and a second lower right opening. (32d) is formed. The first upper right opening (32a) is formed in the upper part on the back side in the right partition plate (20b), and the second upper right opening (32b) is formed in the upper part on the near side in the right partition plate (20b). The first lower right opening (32c) is formed in the lower part on the back side of the right partition plate (20b), and the second lower right opening (32d) is formed in the lower part on the near side of the right partition plate (20b). Has been.

  The left upper channel (61), left lower channel (62), right upper channel (63), and right lower channel (64) include the first and second heat exchanger chambers (71, 72). ) Switching means (33a, 33b) for switching the communication state with (). The switching means (33a, 33b) includes a first opening / closing damper (first switching means) (33a) in the left upper flow path (61) and the right upper flow path (63), a left lower flow path (62), and a right It is comprised with the 2nd opening-and-closing damper (2nd switching means) (33b) in a lower flow path (64).

  The first opening / closing damper (33a) is provided in the first upper left opening (31a), the second upper left opening (31b), the first upper right opening (32a), and the second upper right opening (32b) so as to be freely opened and closed. . The first open / close damper (33a) communicates the left upper flow path (61) and the first heat exchanger chamber (71), and at the same time, the right upper flow path (63) and the second heat exchanger chamber (72). Is connected to the left upper flow path (61) and the second heat exchanger chamber (72), and at the same time, the right upper flow path (63) and the first heat exchanger are connected to each other. The state in which the chamber (71) communicates (the state in FIG. 4) can be switched by the air control means (33a, 33b).

  More specifically, when the first open / close damper (33a) is in the state shown in FIG. 5, the first upper left opening (31a) is opened so that the upper left channel (61) and the first heat exchanger chamber (71) are mutually connected. In addition to communication, the second upper right opening (32b) is opened, and the upper right flow path (63) and the second heat exchanger chamber (72) communicate with each other. On the other hand, when the first open / close damper (33a) is in the state shown in FIG. 4, the second upper left opening (31b) is opened, and the upper left channel (61) communicates with the second heat exchanger chamber (72). The first upper right opening (32a) is opened, and the right upper flow path (63) and the first heat exchanger chamber (71) communicate with each other.

  The second opening / closing damper (33b) is provided in the first lower left opening (31c), the second lower left opening (31d), the first lower right opening (32c), and the second lower right opening (32d) so as to be freely opened and closed. ing. The second open / close damper (33b) allows the lower left channel (62) and the first heat exchanger chamber (71) to communicate with each other, and at the same time, the lower right channel (64) and the second heat exchanger chamber (72). Is connected to the left lower flow path (62) and the second heat exchanger chamber (72), and at the same time the right lower flow path (64) and the first heat exchanger are communicated with each other. The air control means (33a, 33b) can be switched between the state (the state shown in FIG. 5) in which the chamber (71) is in communication.

  More specifically, when the second open / close damper (33b) is in the state shown in FIG. 4, the first lower left opening (31c) is opened and the left lower flow path (62) and the first heat exchanger chamber (71) are mutually connected. In addition to the communication, the second lower right opening (32d) is opened, and the lower right flow path (64) and the second heat exchanger chamber (72) communicate with each other. On the other hand, when the second open / close damper (33b) is in the state shown in FIG. 5, the second lower left opening (31d) is opened and the left lower flow path (62) and the second heat exchanger chamber (72) communicate with each other. The first lower right opening (32c) is opened, and the lower right channel (64) and the first heat exchanger chamber (71) communicate with each other.

  As shown in FIGS. 6A and 6B, the open / close damper (33a, 33b) includes a rectangular blade portion (34) and a shaft portion provided at the central portion of the blade portion (34). (35). The blade portion (34) is rotatably supported by the shaft portion (35) in the openings (31a, ..., 32a, ...) of the left partition plate (20a) and the right partition plate (20b). The open / close dampers (33a, 33b) open the openings (31a,..., 32a,...) By moving the blade portions (34) in the horizontal direction (the state shown in FIG. 6B). It is comprised and it is comprised so that it may be in the state (state of FIG. 6 (A)) which closed the opening (31a, ..., 32a, ...) by making the blade | wing part (34) into a perpendicular direction.

-Driving action-
Next, the operation of the humidity control apparatus described above will be described. In this humidity control apparatus, the first air and the second air are taken in and supplied to the room or discharged to the outside. Further, the humidity control apparatus causes the first air to flow into the first heat exchanger (3) and simultaneously causes the second air to flow into the second heat exchanger (5) by the air control means (33a, 33b). It is configured to switch between the state and the state in which the first air flows into the second heat exchanger (5) and the second air flows into the first heat exchanger (3). Further, the humidity control apparatus continuously performs the dehumidifying operation or the humidifying operation while alternately switching the first operation and the second operation by the refrigerant control means (9) and the air control means (33a, 33b). It is configured.

《Dehumidification operation》
The dehumidifying operation in summer will be described with reference to FIGS.

  As shown in FIG. 4, when the air supply fan (51) is activated in the dehumidifying operation, outdoor air (OA) is taken into the casing (17) through the first suction port (19). This outdoor air flows into the suction side left flow path (43) as the first air. On the other hand, when the exhaust fan (52) is driven, indoor air (RA) is taken into the casing (17) through the second suction port (21). This room air flows into the suction side right flow path (44) as the second air.

  In the sensible heat exchanger (6), the first air flows into the second heat exchange passage (6b) from the suction side left flow path (43), while the first heat exchange passage from the suction side right flow path (44). The second air flows into (6a). Here, in the summer when the dehumidifying operation is performed, the first air that is outdoor air is about 34 ° C., whereas the second air that is indoor air is about 26 ° C. Therefore, in the sensible heat exchanger (6), the first air and the second air exchange heat, and the first air radiates heat to the second air. The first air is cooled by the sensible heat exchanger (6) and then flows into the right upper flow path (63). On the other hand, the second air is heated by the sensible heat exchanger (6) and then flows into the left upper channel (61).

  Next, the first operation in the dehumidifying operation will be described. In this first operation, the refrigerant circuit (1) shown in FIG. 1 is brought into the state shown in FIG. 1 (B) by the refrigerant control means (9), the first heat exchanger (3) functions as an evaporator and the second heat. The exchanger (5) functions as a condenser. Further, the air control means (33a, 33b) brings the first and second open / close dampers (33a, 33b) into the state shown in FIG. 4, and the first air flows into the first heat exchanger (3) and the second Air flows into the second heat exchanger (5). That is, in the first operation, the refrigerant in the first heat exchanger (3) is evaporated and the moisture in the first air is adsorbed by the adsorbent, and at the same time, the refrigerant in the second heat exchanger (5) is condensed and adsorbed. The operation of releasing the moisture into the second air is performed.

  The first air cooled by the sensible heat exchanger (6) flows from the upper right channel (63) through the first upper right opening (32a) into the first heat exchanger chamber (71). The first air flowing into the first heat exchanger chamber (71) is cooled by the first heat exchanger (3), and moisture is adsorbed by the adsorbent carried on the first heat exchanger (3). The The first air cooled and dehumidified in the first heat exchanger chamber (71) in this way flows into the left lower flow path (62) through the first lower left opening (31c).

  On the other hand, the second air heated by the sensible heat exchanger (6) flows from the upper left channel (61) through the second upper left opening (31b) into the second heat exchanger chamber (72). The second air flowing into the second heat exchanger chamber (72) is heated by the second heat exchanger (5) and regenerates the adsorbent carried on the second heat exchanger (5). At this time, the moisture of the adsorbent is desorbed and released to the second air. Thus, the second air used for regeneration of the adsorbent in the second heat exchanger chamber (72) flows into the right lower flow path (64) through the second lower right opening (32d).

  The first air flowing into the left lower flow path (62) passes through the air supply side flow path (41), and then is supplied to the room as humidity control air (dehumidified air) (SA) from the first air outlet (23). Is done. On the other hand, the second air flowing into the lower right channel (64) passes through the exhaust channel (42) and is then discharged out of the room as exhaust air (EA) from the second outlet (25).

  Next, the second operation in the dehumidifying operation will be described. In this second operation, the refrigerant circuit (1) shown in FIG. 1 is brought into the state shown in FIG. 1 (A) by the refrigerant control means (9), and the first heat exchanger (3) functions as a condenser and the second heat. The exchanger (5) functions as an evaporator. Further, the first and second open / close dampers (33a, 33b) are brought into the state shown in FIG. 5 by the air control means (33a, 33b), the first air flows into the second heat exchanger (5), and the second Air flows into the first heat exchanger (3). That is, in the second operation, the refrigerant in the second heat exchanger (5) is evaporated and the moisture in the first air is adsorbed by the adsorbent, and at the same time, the refrigerant in the first heat exchanger (3) is condensed and adsorbed. The operation of releasing the moisture into the second air is performed.

  The first air cooled by the sensible heat exchanger (6) flows into the second heat exchanger chamber (72) from the right upper channel (63) through the second upper right opening (32b). The first air flowing into the second heat exchanger chamber (72) is cooled by the second heat exchanger (5), and moisture is adsorbed by the adsorbent carried on the second heat exchanger (5). The The first air cooled and dehumidified in the second heat exchanger chamber (72) in this way flows into the left lower flow path (62) through the second lower left opening (31d).

  On the other hand, the second air heated by the sensible heat exchanger (6) flows into the first heat exchanger chamber (71) from the left upper channel (61) through the first upper left opening (31a). The second air flowing into the first heat exchanger chamber (71) is heated by the first heat exchanger (3) and regenerates the adsorbent carried on the first heat exchanger (3). At this time, the moisture of the adsorbent is desorbed and released to the second air. Thus, the second air used for regeneration of the adsorbent in the first heat exchanger chamber (71) flows into the right lower flow path (64) through the first lower right opening (32c).

  The first air flowing into the left lower flow path (62) passes through the air supply side flow path (41), and then is supplied to the room as humidity control air (dehumidified air) (SA) from the first air outlet (23). Is done. On the other hand, the second air flowing into the lower right channel (64) passes through the exhaust channel (42) and is then discharged out of the room as exhaust air (EA) from the second outlet (25).

《Humidification operation》
The humidification operation in winter will be described with reference to FIGS. 1, 4, and 5.

  As shown in FIG. 5, when the air supply fan (51) is started in the humidification operation, outdoor air (OA) is taken into the casing (17) through the first suction port (19). This outdoor air flows into the suction side left flow path (43) as the first air. On the other hand, when the exhaust fan (52) is driven, indoor air (RA) is taken into the casing (17) through the second suction port (21). This room air flows into the suction side right flow path (44) as the second air.

  In the sensible heat exchanger (6), the first air flows into the second heat exchange passage (6b) from the suction side left flow path (43), while the first heat exchange passage from the suction side right flow path (44). The second air flows into (6a). Here, in the winter season when the humidifying operation is performed, the first air that is outdoor air is about 0 ° C., whereas the second air that is indoor air is about 20 ° C. For this reason, in the sensible heat exchanger (6), the first air and the second air exchange heat, and the second air radiates heat to the first air. The first air is heated by the sensible heat exchanger (6) and then flows into the right upper flow path (63). On the other hand, the second air flows into the left upper flow path (61) after being cooled by the sensible heat exchanger (6).

  Next, the first operation in the humidifying operation will be described. In this first operation, the refrigerant circuit (1) shown in FIG. 1 is brought into the state shown in FIG. 1 (B) by the refrigerant control means (9), the first heat exchanger (3) functions as an evaporator and the second heat. The exchanger (5) functions as a condenser. Further, the first and second open / close dampers (33a, 33b) are brought into the state shown in FIG. 5 by the air control means (33a, 33b), the first air flows into the second heat exchanger (5), and the second Air flows into the first heat exchanger (3). That is, in the first operation, the refrigerant in the second heat exchanger (5) is condensed to release the moisture of the adsorbent into the first air, and at the same time, the refrigerant in the first heat exchanger (3) is evaporated to obtain the second. An operation for adsorbing moisture in the air by the adsorbent is performed.

  The first air heated by the sensible heat exchanger (6) flows from the right upper channel (63) through the second upper right opening (32b) into the second heat exchanger chamber (72). The first air flowing into the second heat exchanger chamber (72) is heated by the second heat exchanger (5) and regenerates the adsorbent carried on the second heat exchanger (5). At this time, the moisture of the adsorbent is desorbed and released to the first air. The first air heated and humidified in the second heat exchanger chamber (72) in this way flows into the left lower flow path (62) through the second lower left opening (31d).

  On the other hand, the second air cooled by the sensible heat exchanger (6) flows from the upper left channel (61) through the first upper left opening (31a) into the first heat exchanger chamber (71). The first air flowing into the first heat exchanger chamber (71) is cooled by the first heat exchanger (3), and moisture is adsorbed by the adsorbent carried on the first heat exchanger (3). The Thus, the 2nd air which provided the water | moisture content to adsorption agent in the 1st heat exchanger chamber (71) flows into a lower right flow path (64) through the 1st lower right opening (32c).

  The first air flowing into the left lower flow path (62) passes through the air supply side flow path (41), and then is supplied to the room as humidity control air (humidified air) (SA) from the first blowout opening (23). Is done. On the other hand, the second air flowing into the lower right channel (64) passes through the exhaust channel (42) and is then discharged out of the room as exhaust air (EA) from the second outlet (25).

  Next, the second operation in the humidifying operation will be described. In this second operation, the refrigerant circuit (1) shown in FIG. 1 is brought into the state shown in FIG. 1 (A) by the refrigerant control means (9), and the first heat exchanger (3) functions as a condenser and the second heat. The exchanger (5) functions as an evaporator. Further, the air control means (33a, 33b) brings the first and second open / close dampers (33a, 33b) into the state shown in FIG. 4, and the first air flows into the first heat exchanger (3) and the second Air flows into the second heat exchanger (5). That is, in the second operation, the refrigerant in the first heat exchanger (3) is condensed to release the moisture of the adsorbent into the first air, and at the same time, the refrigerant in the second heat exchanger (5) is evaporated to obtain the second heat. An operation for adsorbing moisture in the air by the adsorbent is performed.

  The first air heated by the sensible heat exchanger (6) flows into the first heat exchanger chamber (71) from the upper right channel (63) through the first upper right opening (32a). The first air flowing into the first heat exchanger chamber (71) is heated by the first heat exchanger (3) and regenerates the adsorbent carried on the first heat exchanger (3). At this time, the moisture of the adsorbent is desorbed and released to the first air. The first air heated and humidified in the first heat exchanger chamber (71) in this way flows into the left lower flow path (62) through the first lower left opening (31c).

  On the other hand, the second air cooled in the sensible heat exchanger (6) flows from the upper left channel (61) through the second upper left opening (31b) into the second heat exchanger chamber (72). The second air flowing into the second heat exchanger chamber (72) is cooled by the second heat exchanger (5) and moisture is adsorbed by the adsorbent carried on the second heat exchanger (5). The Thus, the 2nd air which provided the water | moisture content to adsorption agent in the 2nd heat exchanger chamber (72) flows in into a right lower flow path (64) through a 2nd lower right opening (32d).

  The first air flowing into the left lower flow path (62) passes through the air supply side flow path (41), and then is supplied to the room as humidity control air (humidified air) (SA) from the first blowout opening (23). Is done. On the other hand, the second air flowing into the lower right channel (64) passes through the exhaust channel (42) and is then discharged out of the room as exhaust air (EA) from the second outlet (25).

-Effect of the embodiment-
In the present embodiment, the following effects are exhibited.

  In this embodiment, the sensible heat exchanger (6) is arranged upstream of the first and second heat exchangers (3, 5). For this reason, during the dehumidifying operation in summer, the first air is cooled when heat is exchanged between the first air that is outdoor air and the second air that is indoor air in the sensible heat exchanger (6).

  Here, in the first operation, the temperature of the first air in which moisture is adsorbed by the adsorbent of the first heat exchanger (3) is lower than the outside air temperature. Accordingly, the moisture adsorption effect of the adsorbent in the first operation is improved. On the other hand, in the second operation, the temperature of the first air in which moisture is adsorbed by the adsorbent of the second heat exchanger (5) is lower than the outside air temperature. Therefore, the moisture adsorption effect of the first air in the second operation is improved. If it does in this way, the moisture adsorption amount of the adsorption agent at the time of dehumidification operation which repeats the 1st operation and the 2nd operation can be increased, and the dehumidification capacity of this humidity control device can be improved.

  Further, during the humidification operation in winter, when the first air that is outdoor air and the second air that is indoor air are heat-exchanged by the sensible heat exchanger (6), the first air is heated.

  Here, in the first operation, the temperature of the first air that regenerates the adsorbent of the second heat exchanger (5) is higher than the outside air temperature. Therefore, the moisture desorption effect of the adsorbent in the first operation is improved. On the other hand, in the second operation, the temperature of the first air that regenerates the adsorbent of the first heat exchanger (3) is higher than the outside air temperature. Therefore, the moisture desorption effect of the adsorbent in the second operation is improved. If it does in this way, the water | moisture-content desorption amount from the adsorption agent at the time of the humidification operation which repeats 1st operation | movement and 2nd operation | movement can be increased, and the humidification capability of this humidity control apparatus can be improved.

<< Other Embodiments >>
The humidity control apparatus according to the present embodiment is configured to switch between the dehumidifying operation and the humidifying operation by the air control means (33a, 33b) and the refrigerant control means (9). However, this humidity control apparatus may perform only the dehumidifying operation, or may perform only the humidifying operation.

In the humidity control apparatus that performs only the dehumidification operation, for example, cooling of outdoor air by the sensible heat exchanger (6) improves the moisture adsorption effect of the adsorbent during the first and second operations, and the dehumidification of the humidity control apparatus Ability can be improved. On the other hand, in the humidity control apparatus that performs only the humidification operation, for example, by heating the outdoor air by the sensible heat exchanger (6), the moisture desorption effect of the adsorbent during the first and second operations is improved. The humidification capability of the apparatus can be improved.

Further, in the present embodiment, a cross flow sensible heat exchanger (6) is used as the air heat exchanger (6). However, the air heat exchanger (6) is not necessarily limited to the sensible heat exchanger crossflow type, may be a sensible heat exchanger of the rotary type, it may be a total heat exchanger, the outdoor Any air can be used as long as it can exchange heat between air and room air.

When this air heat exchanger (6) is a rotary sensible heat exchanger that can be rotated across the outdoor air circulation passage and the indoor air circulation passage, the rotational speed of the sensible heat exchanger By changing the speed, the heat exchange rate between the outdoor air and the indoor air can be changed. Therefore, the temperature of outdoor air or room air can be adjusted, and the amount of moisture adsorbed in the adsorbent or the amount of moisture desorbed in the adsorbent can be adjusted.

Further, as the air heat exchanger (6), in the case of using the total heat exchanger, in addition to the sensible heat of the outdoor air and the indoor air, to replace even latent heat of outdoor air and indoor air. In this case, when the humidity of the outdoor air is higher than the humidity of the room air, moisture in the outdoor air by the total heat exchanger deprived to room air. Therefore, when this outdoor air is used for the dehumidifying operation of the humidity control apparatus, the dehumidifying ability of the humidity control apparatus can be improved. Also, when the humidity of the outdoor air is lower than the humidity of the room air, moisture in the room air is imparted to the outdoor air by the total heat exchanger. Therefore, when this outdoor air is used for the humidifying operation of the humidity control device, the humidification capability of the humidity control device can be improved.

1A is a plan view of the humidity control apparatus according to the present embodiment, FIG. 1B is a left side view thereof, FIG. 1C is a right side view thereof, and FIG. Is a rear view. It is a circuit diagram which shows the refrigerant circuit of the humidity control apparatus which concerns on this embodiment. It is a schematic perspective view of the heat exchanger of the humidity control apparatus which concerns on this embodiment. 4A is a plan view showing an operation example of the humidity control apparatus according to the present embodiment, FIG. 4B is a left side view thereof, FIG. 4C is a right side view thereof, FIG. 4 (D) is a rear view thereof. 5A is a plan view showing an operation example of the humidity control apparatus according to the present embodiment, FIG. 5B is a left side view thereof, FIG. 5C is a right side view thereof, FIG. 5 (D) is a rear view thereof. FIG. 6A is a schematic side view in which the switching means is closed, and FIG. 6B is a schematic side view in which the switching means is open.

Explanation of symbols

(1) Refrigerant circuit
(3) 1st heat exchanger
(5) Second heat exchanger
(6) Air heat exchanger
(9) Refrigerant control means
(17) Casing
(33a) First switching means
(33b) Second switching means
(61) First inflow passage
(62) Second inflow passage
(63) First outflow passage
(64) Second outflow passage
(71) 1st heat exchanger room
(72) Second heat exchanger room

Claims (6)

A humidity control apparatus that takes in indoor air and discharges it to the outside, takes in outdoor air, adjusts the humidity, and supplies the air after humidity adjustment to the room ,
Refrigerant circuit that includes a first heat exchanger (3) and a second heat exchanger (5), each carrying an adsorbent that adsorbs and desorbs moisture, and performs a refrigeration cycle by circulating the refrigerant. (1) and
A first heat exchanger chamber (71) in which the first heat exchanger (3) is accommodated, a second heat exchanger chamber (72) in which the second heat exchanger (5) is accommodated, and first and first 2 formed at the upstream side of the heat exchanger chambers (71, 72) and formed at the upstream side of the first inflow passage (61) through which room air flows and the first and second heat exchanger chambers (71, 72). A second inflow passage (63) through which outdoor air flows and a first outflow passage (62) formed downstream of the first and second heat exchanger chambers (71, 72) and through which air supplied to the room flows. A casing (17) formed with a second outflow passage (64) formed on the downstream side of the first and second heat exchanger chambers (71, 72) and through which air discharged to the outside flows.
Refrigerant circuit (1), a first state for condensing refrigerant in the first heat exchanger (3) refrigerants Evaporation simultaneously the second heat exchanger (5), refrigerant in the first heat exchanger (3) Refrigerant control means (9) for switching to a second state in which the refrigerant in the second heat exchanger (5) is evaporated at the same time as
A first state in which the first inflow passage (61) and the first heat exchanger chamber (71) are in communication with each other and the second inflow passage (63) and the second heat exchanger chamber (72) are in communication with each other; 1 inflow passage (61) and the second heat exchanger chamber (72) can be connected to each other, and at the same time, the second inflow passage (63) and the first heat exchanger chamber (71) can be connected to the second state. First switching means (33a),
A first state in which the first outflow passage (62) and the first heat exchanger chamber (71) are in communication with each other, and the second outflow passage (64) and the second heat exchanger chamber (72) are in communication with each other; 1 outflow passage (62) and the second heat exchanger chamber (72) can be connected to each other, and at the same time, the second outflow passage (64) and the first heat exchanger chamber (71) can be connected to the second state. Second switching means (33b),
An air heat exchanger (6) disposed upstream of the first and second heat exchanger chambers (71, 72) for exchanging heat between the taken outdoor air and indoor air ;
A first operation in which the refrigerant control means (9) sets the refrigerant circuit (1) in a first state, the first switching means (33a) in a second state, and the second switching means (33b) in a first state; A second operation in which the refrigerant control means (9) sets the refrigerant circuit (1) in the second state, sets the first switching means (33a) in the first state, and sets the second switching means (33b) in the second state; A humidity control apparatus that performs a dehumidifying operation for alternately switching between . A humidity control apparatus that takes in indoor air and discharges it to the outside, takes in outdoor air, adjusts the humidity, and supplies the air after humidity adjustment to the room,
Refrigerant circuit that includes a first heat exchanger (3) and a second heat exchanger (5), each carrying an adsorbent that adsorbs and desorbs moisture, and performs a refrigeration cycle by circulating the refrigerant. (1) and
A first heat exchanger chamber (71) in which the first heat exchanger (3) is accommodated, a second heat exchanger chamber (72) in which the second heat exchanger (5) is accommodated, and first and first 2 formed at the upstream side of the heat exchanger chambers (71, 72) and formed at the upstream side of the first inflow passage (61) through which room air flows and the first and second heat exchanger chambers (71, 72). A second inflow passage (63) through which outdoor air flows and a first outflow passage (62) formed downstream of the first and second heat exchanger chambers (71, 72) and through which air supplied to the room flows. A casing (17) formed with a second outflow passage (64) formed on the downstream side of the first and second heat exchanger chambers (71, 72) and through which air discharged to the outside flows.
The refrigerant circuit (1) has a first state in which the refrigerant in the first heat exchanger (3) is evaporated and at the same time the refrigerant in the second heat exchanger (5) is condensed, and the refrigerant in the first heat exchanger (3). Refrigerant control means (9) for switching to a second state in which the refrigerant in the second heat exchanger (5) is evaporated at the same time as
A first state in which the first inflow passage (61) and the first heat exchanger chamber (71) are in communication with each other and the second inflow passage (63) and the second heat exchanger chamber (72) are in communication with each other; 1 inflow passage (61) and the second heat exchanger chamber (72) can be connected to each other, and at the same time, the second inflow passage (63) and the first heat exchanger chamber (71) can be connected to the second state. First switching means (33a),
A first state in which the first outflow passage (62) and the first heat exchanger chamber (71) are in communication with each other, and the second outflow passage (64) and the second heat exchanger chamber (72) are in communication with each other; 1 outflow passage (62) and the second heat exchanger chamber (72) can be connected to each other, and at the same time, the second outflow passage (64) and the first heat exchanger chamber (71) can be connected to the second state. Second switching means (33b),
An air heat exchanger (6) disposed upstream of the first and second heat exchanger chambers (71, 72) for exchanging heat between the taken outdoor air and indoor air;
A first operation in which the refrigerant control means (9) sets the refrigerant circuit (1) in a first state, the first switching means (33a) in a first state, and the second switching means (33b) in a second state; A second operation in which the refrigerant control means (9) sets the refrigerant circuit (1) to the second state, sets the first switching means (33a) to the second state, and sets the second switching means (33b) to the first state; A humidity control apparatus that performs a humidifying operation for alternately switching between . The humidity control apparatus according to claim 1 or 2 ,
The air heat exchanger (6) comprises a sensible heat exchanger that exchanges heat by flowing outdoor air and indoor air in directions orthogonal to each other. The humidity control apparatus according to claim 1 or 2 ,
The air heat exchanger (6) comprises a sensible heat exchanger that is disposed to straddle an outdoor air circulation passage and an indoor air circulation passage and is rotatable. The humidity control apparatus according to claim 1 or 2 ,
The air conditioner (6) comprises a total heat exchanger, and is a humidity control device. The humidity control apparatus according to any one of claims 1 to 5 ,
The first heat exchanger chamber (71) and the second heat exchanger chamber (72) are disposed adjacent to each other,
The first inflow passage (61) and the first outflow passage (62) are formed along one end surface in the thickness direction in which each surface of the first and second heat exchanger chambers (71, 72) is continuous. And arranged so as to overlap in the thickness direction of the first and second heat exchanger chambers (71, 72),
The second inflow passage (63) and the second outflow passage (64) are the other end faces of the first and second heat exchanger chambers (71, 72) opposite to one end face in the thickness direction where the one faces are continuous. The humidity control apparatus is characterized in that the humidity control apparatus is disposed along the thickness direction of the first and second heat exchanger chambers (71, 72).

Images