JP3815485B2 - Humidity control device - Google Patents

Abstract

A humidity controller (10) is provided with a refrigerant circuit (60). The refrigerant circuit (60) has first and second heat exchangers (61, 62) carrying an adsorptive agent and circulates a refrigerant to perform a freezing cycle. Further, in the refrigerant circuit (60), the direction of circulation of the refrigerant is reversible. The first and second heat exchangers (61, 62) are installed in a casing (11). In the humidity controller (10), air flow paths are switched so that first air passes through either of the heat exchangers (61, 62) that works as an evaporator and second air passesthrough the other that works as a condenser. A compressor (63), an expansion mechanism (65), and a four-way selector valve (64) of the refrigerant circuit (60) are installed in the casing (11) together with the heat exchangers (61, 62).

Description

  The present invention relates to a humidity control device that adjusts the humidity of air, and particularly to a device that regenerates or cools an adsorbent by performing a refrigeration cycle.

  2. Description of the Related Art Conventionally, as disclosed in, for example, Patent Document 1, a humidity control device that adjusts air humidity using an adsorbent and a refrigeration cycle is known. This humidity control apparatus includes two adsorption units. Each adsorption unit is constituted by a mesh container filled with an adsorbent and a refrigerant pipe penetrating the mesh container. The refrigerant pipe of each adsorption unit is connected to a refrigerant circuit that performs a refrigeration cycle. The humidity control apparatus is provided with a damper for switching the air sent to each adsorption unit.

  During the operation of the humidity control apparatus, the compressor of the refrigerant circuit is operated, and a refrigeration cycle in which one of the two adsorption units is an evaporator and the other is a condenser is performed. In the refrigerant circuit, the refrigerant circulation direction is switched by operating the four-way switching valve, and each adsorption unit functions alternately as an evaporator or a condenser.

  In the humidifying operation of the humidity control apparatus, the air supply flowing from the outside to the room is led to the adsorption unit serving as a condenser, and the supply air is humidified with moisture desorbed from the adsorbent. At that time, the exhaust gas flowing from the inside to the outside of the room is led to the adsorption unit serving as an evaporator, and the moisture in the exhaust gas is collected into the adsorbent. On the other hand, in the dehumidifying operation of the humidity control apparatus, the air supply flowing from the outside to the room is led to an adsorption unit serving as an evaporator, and the moisture in the intake air is adsorbed by the adsorbent. At that time, the exhaust flowing from the room to the outside is led to the adsorption unit serving as a condenser, and the moisture desorbed from the adsorbent is discharged together with the exhaust to the outside.

In addition, as what has the same function as the said adsorption | suction unit, the heat exchange member as disclosed, for example in patent document 2 is also known. In this heat exchange member, plate-like fins are provided around the copper tube, and an adsorbent is supported on the surfaces of the copper tube and the fins. The heat exchange member is configured to heat and cool the adsorbent with a fluid flowing in the copper pipe.
JP-A-8-189667 JP-A-7-265649

  By the way, in the said conventional humidity control apparatus, there exists a subject of raising the condensation temperature of a heat exchanger as much as possible, increasing the regeneration amount of adsorption agent, and improving the efficiency.

  Moreover, when a part of refrigerant circuit is arrange | positioned out of a casing, it is necessary to pipe-connect a refrigerant circuit at the time of installation of a humidity control apparatus, and there exists a problem that the installation operation | work is troublesome.

  The present invention has been made in view of the above points, and the object of the present invention is to arrange the refrigerant circuit in the casing to increase the regeneration amount of the adsorbent and improve its efficiency, and to install the refrigerant circuit. May make work easier.

  In order to achieve the above object, in the present invention, the compressor (63), the expansion mechanism (65) of the refrigerant circuit (60), and the reversing mechanism (64) for reversing the refrigerant circulation direction are combined with a heat exchanger ( 61, 62) and installed in the casing (11).

  Specifically, the first invention is directed to a humidity control apparatus that supplies one of the dehumidified first air and the humidified second air to the room and discharges the other to the outside.

  Then, the first and second heat exchangers (61, 62) carrying the adsorbent are connected to perform a refrigeration cycle and the refrigerant circulation direction can be reversed, and the above-described heat is supplied to the internal air passage. One where the first air passes through the casing (11) where the exchanger (61, 62) is installed and the evaporator (of the heat exchanger (61, 62)) to become a condenser And a switching mechanism for switching the air flow path in the casing (11) according to the direction of refrigerant circulation in the refrigerant circuit (60) so that the second air passes through the refrigerant circuit (60). The compressor (63), the expansion mechanism (65), and the reversing mechanism (64) for reversing the refrigerant circulation direction are installed in the casing (11) together with the heat exchanger (61, 62). The configuration.

In the first aspect of the invention, the casing (11) includes the first space (17) in which the air supply fan (25) and the exhaust fan (26) are disposed, and the first and second heats. The first space (17) is partitioned into a second space (18) in which the exchangers (61, 62) are arranged. The first space (17) includes a space in which the air supply fan (25) is accommodated, and the exhaust fan (26 ), The air that has passed through the first heat exchanger (61) and the air that has passed through the second heat exchanger (62) are supplied to the interior of the room. The fan (25) is accommodated in the space where the exhaust fan (26) is accommodated, and the compressor (63) of the refrigerant circuit (60) is discharged into the space where the exhaust fan (26) is accommodated . The exhaust fan (26) is arranged in a space in which it is stored.

  According to the above configuration, the two refrigeration cycle operations are alternately repeated by switching the reversing mechanism (64) in the refrigerant circuit (60). During the first refrigeration cycle operation, the second air is sent to the first heat exchanger (61) serving as a condenser, and the first air is sent to the second heat exchanger (62) serving as an evaporator. . In the first heat exchanger (61), the adsorbent is regenerated by being heated by the refrigerant, and moisture desorbed from the adsorbent is given to the second air. In the second heat exchanger (62), the moisture in the first air is adsorbed by the adsorbent, and the refrigerant absorbs the heat of adsorption generated at that time. On the other hand, during the second refrigeration cycle operation, the switching mechanism switches to a different flow path from that during the first refrigeration cycle operation, and the first air is sent to the first heat exchanger (61) serving as the evaporator. Then, the second air is sent to the second heat exchanger (62) serving as a condenser. In the first heat exchanger (61), the moisture in the first air is adsorbed by the adsorbent, and the refrigerant absorbs the heat of adsorption generated at that time. In the second heat exchanger (62), the adsorbent is regenerated by being heated by the refrigerant, and moisture desorbed from the adsorbent is given to the second air.

  In the present invention, the humidity control apparatus (10) supplies the dehumidified first air or the humidified second air to the room. That is, the humidity control apparatus (10) may supply only the dehumidified first air to the room or may supply only the humidified second air to the room. The humidity control apparatus (10) may be capable of switching between an operation for supplying the dehumidified first air to the room and an operation for supplying the humidified second air to the room.

  Further, in the present invention, the compressor (63), the expansion mechanism (65) of the refrigerant circuit (60), and the reversing mechanism (64) for reversing the refrigerant circulation direction are combined with the heat exchanger (61, 62) in the casing. Since it is installed in (11), it is not necessary to pipe-connect each element of the refrigerant circuit (60) when installing the humidity control device, and shipment with the refrigerant filled is possible. Therefore, the installation work is very easy.

  In addition, since the refrigerant circuit (60) is housed in the casing (11), the connecting pipe can be shortened, thereby reducing the pressure loss in the pipe and increasing the condensation temperature. Therefore, the refrigerant temperature at the time of regeneration becomes high, and the efficiency of the humidity control apparatus can be improved by increasing the regeneration amount of the adsorbent.

Moreover, because of the arrangement of the compressor (63) in the flow path of the air discharged to the outdoor compressor (63) absorbing air radiant heat itself by discarding the outdoor, extra compressor ( 63) The amount of heat can be released outdoors. Therefore, it is advantageous to a humidity control apparatus that prioritizes the cooling effect, and the heat of the compressor (63) can be thrown out to the outside, and the efficiency of the humidity control apparatus is increased.

In the second invention, the air outlet (24) and the inlet (22) for connecting the duct (72, 74) communicating with the room to the casing (11), and the duct (71, 73) communicating with the outside It is set as the structure by which the blower outlet (23) and suction inlet (21) for connecting each are opened.

  According to said structure, a humidity control apparatus can be arrange | positioned in an optimal position by utilizing the duct (71, 72, 73, 74) which connects the room | chamber interior and the outdoors, and a casing (11).

In the third invention, the air outlet (24) and the suction port (22) for directly communicating the inside of the casing (11) and the room are connected to the casing (11) and the duct (71, 73) communicating to the outside. It is set as the structure by which the blower outlet (23) and suction inlet (21) for opening are each opened.

  According to the above configuration, since it is not necessary to provide ducts (72, 74) communicating with the room, a space such as a ceiling can be used effectively.

  As described above, according to the present invention, the compressor (63), the expansion mechanism (65) of the refrigerant circuit (60), and the reversing mechanism (64) for reversing the refrigerant circulation direction are connected to the heat exchanger (61 , 62) together with the casing (11). For this reason, since it can be shipped and installed with the refrigerant filled, the installation work is easy, and the efficiency of the humidity control device can be improved by reducing the pressure loss and increasing the condensation temperature. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the following embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

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

  As shown in FIG.1 and FIG.2, the humidity control apparatus (10) of this embodiment performs dehumidification and humidification of indoor air, and is provided with the box-shaped casing (11). 2, (B) is a plan view, (C) is an arrow view seen from the Y direction, and (A) is an arrow view seen from the X direction. Further, “right” and “left” in the following description mean those in FIG. FIG. 1 is a perspective view of the humidity control apparatus (10) in FIG.

  As shown in FIG. 3, the refrigerant circuit (60) and the like are accommodated in the casing (11). The refrigerant circuit (60) includes a first heat exchanger (61), a second heat exchanger (62), a compressor (63), a four-way switching valve (64) as an inversion mechanism, and an electric expansion as an expansion mechanism. A closed circuit provided with a valve (65), which is filled with refrigerant. In the refrigerant circuit (60), a vapor compression refrigeration cycle is performed by circulating the filled refrigerant in a reversible manner. Details of the refrigerant circuit (60) will be described later.

  As shown in FIG. 2, the casing (11) is formed in a flat box shape having a generally square shape in plan view. The left side wall of the casing (11) is the first side plate (12), the right side wall is the second side plate (13), the front side wall is the third side plate (14), and the rear side wall is the fourth side plate ( 15). In FIG. 1, the second side plate (13), the fourth side plate (15), and the top plate are omitted.

  The first side plate (12) on the left side of the casing (11) is formed with an outdoor air inlet (21) on the upper side near the fourth side plate (15) on the back side, and the third side plate (14) on the front side thereof. An indoor air inlet (22) is formed on the upper side. On the other hand, the second side plate (13) on the right side of the casing (11) is formed with an exhaust outlet (23) near the fourth side plate (15), and an air supply outlet (23) near the third side plate (14). 24) is formed.

  As shown by a two-dot chain line in FIG. 1, the outdoor air suction duct (71) is connected to the outdoor air suction port (21) of the first side plate (12) of the casing (11), and the indoor air suction port (22). An indoor air suction duct (72) is connected to the main body. On the other hand, an exhaust outlet duct (73) is connected to the exhaust outlet (23) of the second side plate (13) in the casing (11), and an air supply outlet duct (74) is connected to the air inlet outlet (24). Yes. In this way, the room and the outside communicate with the inside of the casing (11).

  As shown in FIG. 2, a first partition plate (31) is erected in the casing (11) closer to the second side plate (13) than the central portion in the left-right direction. The internal space (16) of the casing (11) is partitioned left and right by the first partition plate (31). The right side of the first partition plate (31) is the first space (17), and the left side of the first partition plate (31) is the second space (18).

  A seventh partition plate (37) is erected in the first space (17) of the casing (11) near the third side plate (14). The first space (17) is divided into two by the seventh partition plate (37). Of the divided first space (17), an air supply fan (25) is accommodated on the third side plate (14) side, and an exhaust fan (26) is accommodated on the fourth side plate (15) side. Has been. The compressor (63) of the refrigerant circuit (60) is arranged on the fourth side plate (15) side of the first space (17) so as to be sandwiched between the air supply fan (25) and the exhaust fan (26). Has been. Further, as shown in FIG. 1, the electric expansion valve (65) and the four-way switching valve (64) of the refrigerant circuit (60) are also arranged on the fourth side plate (15) side of the first space (17). Further, the exhaust fan (26) is connected to the exhaust outlet (23). The air supply fan (25) is connected to the air supply outlet (24).

  A second partition plate (32), a third partition plate (33), and a sixth partition plate (36) are provided in the second space (18) of the casing (11). The second partition plate (32) is erected near the third side plate (14), and the third partition plate (33) is erected near the fourth side plate (15). The second space (18) is partitioned into three spaces from the front side to the back side by the second partition plate (32) and the third partition plate (33). The sixth partition plate (36) is provided in a space sandwiched between the second partition plate (32) and the third partition plate (33). The sixth partition plate (36) is erected at the center in the left-right width direction of the second space (18).

  The space sandwiched between the second partition plate (32) and the third partition plate (33) is partitioned left and right by the sixth partition plate (36). Among these, the space on the right side constitutes the first heat exchange chamber (41), and the first heat exchanger (61) is disposed therein. On the other hand, the left space constitutes a second heat exchange chamber (42), in which the second heat exchanger (62) is arranged.

A pipe opening (31a) for communicating the first heat exchange chamber (41) and the first space (17) is provided on the upper side in the longitudinal center of the first partition plate (31) (FIG. 1). See).

  Each heat exchanger (61, 62) is formed in a thick flat plate shape as a whole. The first heat exchanger (61) is installed so as to cross the first heat exchange chamber (41) in the horizontal direction. The second heat exchanger (62) is installed so as to cross the second heat exchange chamber (42) in the horizontal direction. Details of the first and second heat exchangers (61, 62) will be described later.

  A fifth partition plate (35) is provided in a space between the third partition plate (33) and the fourth side plate (15) of the casing (11) in the second space (18). The fifth partition plate (35) is provided so as to cross the central portion in the height direction of the space, and partitions the space vertically (see FIG. 2A). The space above the fifth partition plate (35) constitutes the first inflow passage (43), and the space below it constitutes the first outflow passage (44). The first inflow passage (43) communicates with the outdoor air suction port (21), and the first outflow passage (44) communicates with the exhaust outlet (23) through the exhaust fan (26).

  On the other hand, a fourth partition plate (34) is provided in a space between the second partition plate (32) and the third side plate (14) of the casing (11) in the second space (18). . The 4th partition plate (34) is provided so that the center part of the height direction of this space may be crossed, and this space is partitioned up and down (refer FIG.2 (C)). The space above the fourth partition plate (34) constitutes the second inflow passage (45), and the space below it constitutes the second outflow passage (46). The second inflow passage (45) communicates with the indoor air inlet (22), and the second outflow passage (46) communicates with the air supply outlet (24) via the air supply fan (25). .

  The third partition plate (33) has four openings (51, 52, 53, 54) (see FIG. 2A). The first opening (51) formed in the upper right part of the third partition plate (33) is located above the first heat exchanger (61) in the first heat exchange chamber (41) with the first inflow passage (43). Communicate. The second opening (52) formed in the upper left part of the third partition plate (33) is located on the upper side of the second heat exchanger (62) in the second heat exchange chamber (42) with the first inflow passage (43). Communicate. A third opening (53) formed in the lower right portion of the third partition plate (33) is provided on the lower side of the first heat exchanger (61) in the first heat exchange chamber (41). Communicating with The 4th opening (54) formed in the lower left part of the 3rd partition plate (33) is the 1st outflow channel (44) below the 2nd heat exchanger (62) in the 2nd heat exchange room (42). Communicating with

  Four openings (55, 56, 57, 58) are formed in the second partition plate (32) (see FIG. 2C). The 5th opening (55) formed in the upper right part of the 2nd partition plate (32) is above the 1st heat exchanger (61) in the 1st heat exchange chamber (41), and the 2nd inflow passage (45). Communicate. The sixth opening (56) formed in the upper left part of the second partition plate (32) is located on the upper side of the second heat exchanger (62) in the second heat exchange chamber (42) with the second inflow channel (45). Communicate. The seventh opening (57) formed in the lower right portion of the second partition plate (32) is located below the first heat exchanger (61) in the first heat exchange chamber (41), and the second outflow passage (46). Communicating with The 8th opening (58) formed in the lower left part of the 2nd partition plate (32) is the 2nd outflow path (46) below the 2nd heat exchanger (62) in the 2nd heat exchange chamber (42). Communicating with

  Although not shown, each opening (51, 52, 53, 54) of the third partition plate (33) and each opening (55, 56, 57, 58) of the second partition plate (32) A damper is provided as a switching mechanism that can be freely opened and closed. Each of these openings (51,..., 55,...) Is switched between an open state and a closed state by opening and closing the damper. Thus, the air flow path in the casing (11) can be switched according to the refrigerant circulation direction in the refrigerant circuit (60).

  The refrigerant circuit (60) will be described with reference to FIGS.

The discharge side of the compressor (63) is connected to the first port of the four-way switching valve (64), and the suction side is connected to the second port of the four-way switching valve (64). One end of the first heat exchanger (61) is connected to the third port of the four-way switching valve (64) through the piping opening (31a). The other end of the first heat exchanger (61) is connected to the electric expansion valve (65) through the piping opening (31a) and again passes through the piping opening (31a) to the first heat exchange chamber (41). And is connected to one end of the second heat exchanger (62) through a pipe opening (36a) provided on the upper side in the longitudinal direction of the sixth partition plate (36). The other end of the second heat exchanger (62) passes through the piping opening (36a), crosses the first heat exchange chamber (41), passes through the piping opening (31a), and the four-way switching valve (64) 4 ports are connected.

  The compressor (63) is configured as a so-called hermetic type. Although not shown, electric power is supplied to the electric motor of the compressor (63) via an inverter.

  Each of the first and second heat exchangers (61, 62) is constituted by a so-called cross fin type fin-and-tube heat exchanger including a heat transfer tube and a large number of fins. Further, on the outer surfaces of the first and second heat exchangers (61, 62), an adsorbent such as zeolite is supported over substantially the entire surface.

  The four-way switching valve (64) includes a state in which the first port and the third port communicate with each other and the second port and the fourth port communicate with each other (the state shown in FIG. 3A), The port and the fourth port communicate with each other, and the second port and the third port communicate with each other (state shown in FIG. 3B). The refrigerant circuit (60) switches the four-way switching valve (64) to reverse the refrigerant circulation direction, so that the first heat exchanger (61) functions as a condenser and the second heat exchanger (62 ) Functions as an evaporator, and the first refrigeration cycle operation in which the first heat exchanger (61) functions as an evaporator and the second heat exchanger (62) functions as a condenser. It is configured to perform switching.

-Humidity control operation of humidity control device-
The humidity control operation of the humidity control apparatus (10) will be described. In the humidity control apparatus (10), the dehumidifying operation and the humidifying operation can be switched. In the humidity control apparatus (10), during the dehumidifying operation or the humidifying operation, the first operation and the second operation are alternately repeated at a relatively short time interval (for example, every 3 minutes).

《Dehumidification operation》
During the dehumidifying operation, the air supply fan (25) and the exhaust fan (26) are operated in the humidity control apparatus (10). The humidity control apparatus (10) takes outdoor air (OA) as first air and supplies it to the room, while taking in indoor air (RA) as second air and discharges it to the outside.

  First, the first operation during the dehumidifying operation will be described with reference to FIGS. 3 and 4. In the first operation, the adsorbent is regenerated in the first heat exchanger (61), and the outdoor air (OA) that is the first air is dehumidified in the second heat exchanger (62).

  In the first operation, in the refrigerant circuit (60), the four-way switching valve (64) is switched to the state shown in FIG. When the compressor (63) is operated in this state, the refrigerant circulates in the refrigerant circuit (60), the first heat exchanger (61) becomes a condenser, and the second heat exchanger (62) becomes an evaporator. A first refrigeration cycle operation is performed.

  Specifically, the refrigerant discharged from the compressor (63) dissipates heat and condenses in the first heat exchanger (61), and then is sent to the electric expansion valve (65) to be depressurized. The decompressed refrigerant absorbs heat and evaporates in the second heat exchanger (62), and then is sucked into the compressor (63) and compressed. Then, the compressed refrigerant is discharged again from the compressor (63).

  In the first operation, the second opening (52), the third opening (53), the fifth opening (55), and the eighth opening (58) are in the open state, and the first opening (51) and the fourth opening (58) are in the open state. The opening (54), the sixth opening (56), and the seventh opening (57) are closed. Then, as shown in FIG. 4, indoor air (RA) as second air is supplied to the first heat exchanger (61), and outdoor air (OA) as first air is supplied to the second heat exchanger (62). ) Is supplied.

  Specifically, the 2nd air which flowed in from the indoor air suction inlet (22) is sent into a 1st heat exchange chamber (41) through a 5th opening (55) from a 2nd inflow path (45). In the first heat exchange chamber (41), the second air passes through the first heat exchanger (61) from top to bottom. In the first heat exchanger (61), the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture desorbed from the adsorbent is given to the second air passing through the first heat exchanger (61). The second air given moisture in the first heat exchanger (61) flows out from the first heat exchange chamber (41) through the third opening (53) to the first outflow passage (44). Thereafter, the second air is sucked into the exhaust fan (26), and discharged from the exhaust outlet (23) to the outside as exhaust air (EA).

  On the other hand, the 1st air which flowed in from the outdoor air suction inlet (21) is sent into a 2nd heat exchange chamber (42) through a 2nd opening (52) from a 1st inflow path (43). In the second heat exchange chamber (42), the first air passes from the top to the bottom through the second heat exchanger (62). In the second heat exchanger (62), the moisture in the first air is adsorbed by the adsorbent supported on the surface thereof. The heat of adsorption generated at that time is absorbed by the refrigerant. The first air dehumidified in the second heat exchanger (62) flows out from the second heat exchange chamber (42) through the eighth opening (58) to the second outflow passage (46). Thereafter, the first air is sucked into the air supply fan (25) and is supplied into the room as supply air (SA) from the air supply outlet (24).

  Next, the second operation during the dehumidifying operation will be described with reference to FIGS. 3 and 5. In the second operation, the adsorbent is regenerated in the second heat exchanger (62), and the outdoor air (OA) that is the first air is dehumidified in the first heat exchanger (61).

  During the second operation, in the refrigerant circuit (60), the four-way switching valve (64) is switched to the state shown in FIG. When the compressor (63) is operated in this state, the refrigerant circulates in the refrigerant circuit (60), the first heat exchanger (61) becomes an evaporator, and the second heat exchanger (62) becomes a condenser. A second refrigeration cycle operation is performed.

  Specifically, the refrigerant discharged from the compressor (63) dissipates heat and condenses in the second heat exchanger (62), and then is sent to the electric expansion valve (65) to be depressurized. The decompressed refrigerant absorbs heat and evaporates in the first heat exchanger (61), and then is sucked into the compressor (63) and compressed. Then, the compressed refrigerant is discharged again from the compressor (63).

  In the second operation, the first opening (51), the fourth opening (54), the sixth opening (56), and the seventh opening (57) are in the open state, and the second opening (52) and the third opening (53), the fifth opening (55), and the eighth opening (58) are closed. Then, as shown in FIG. 5, outdoor air (OA) as first air is supplied to the first heat exchanger (61), and indoor air (RA) as second air is supplied to the second heat exchanger (62). ) Is supplied.

  Specifically, the 2nd air which flowed in from the indoor air suction inlet (22) is sent into a 2nd heat exchange chamber (42) through a 6th opening (56) from a 2nd inflow path (45). In the second heat exchange chamber (42), the second air passes through the second heat exchanger (62) from top to bottom. In the second heat exchanger (62), the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture desorbed from the adsorbent is given to the second air passing through the second heat exchanger (62). The second air given moisture in the second heat exchanger (62) flows out from the second heat exchange chamber (42) through the fourth opening (54) to the first outflow passage (44). Thereafter, the second air is sucked into the exhaust fan (26), and discharged from the exhaust outlet (23) to the outside as exhaust air (EA).

  On the other hand, the 1st air which flowed in from the outdoor air suction inlet (21) is sent into a 1st heat exchange chamber (41) through a 1st inflow path (43) through a 1st opening (51). In the first heat exchange chamber (41), the first air passes through the first heat exchanger (61) from top to bottom. In the first heat exchanger (61), moisture in the first air is adsorbed by the adsorbent supported on the surface thereof. The heat of adsorption generated at that time is absorbed by the refrigerant. The first air dehumidified in the first heat exchanger (61) flows out from the first heat exchange chamber (41) through the seventh opening (57) to the second outflow passage (46). Thereafter, the first air is sucked into the air supply fan (25) and is supplied into the room as supply air (SA) from the air supply outlet (24).

《Humidification operation》
During the humidification operation, the air supply fan (25) and the exhaust fan (26) are operated in the humidity control apparatus (10). The humidity control apparatus (10) takes in indoor air (RA) as first air and discharges it outside the room, while taking in outdoor air (OA) as second air and supplies it to the room.

  First, the first operation during the humidifying operation will be described with reference to FIGS. 3 and 6. In this first operation, the outdoor air (OA) that is the second air is humidified in the first heat exchanger (61), and the indoor air (RA) that is the first air in the second heat exchanger (62). Water is collected from the water.

  In the first operation, in the refrigerant circuit (60), the four-way switching valve (64) is switched to the state shown in FIG. When the compressor (63) is operated in this state, the refrigerant circulates in the refrigerant circuit (60), the first heat exchanger (61) becomes a condenser, and the second heat exchanger (62) becomes an evaporator. A first refrigeration cycle operation is performed.

  In the first operation, the first opening (51), the fourth opening (54), the sixth opening (56), and the seventh opening (57) are in the open state, and the second opening (52) and the third opening (57) are in the open state. The opening (53), the fifth opening (55), and the eighth opening (58) are closed. Then, as shown in FIG. 6, outdoor air (OA) as second air is supplied to the first heat exchanger (61), and indoor air as first air is supplied to the second heat exchanger (62). (RA) is supplied.

  Specifically, the 1st air which flowed in from the indoor air suction inlet (22) is sent into a 2nd heat exchange chamber (42) through a 6th opening (56) from a 2nd inflow path (45). In the second heat exchange chamber (42), the first air passes from the top to the bottom through the second heat exchanger (62). In the second heat exchanger (62), the moisture in the first air is adsorbed by the adsorbent supported on the surface thereof. The heat of adsorption generated at that time is absorbed by the refrigerant. Thereafter, the first air deprived of moisture passes through the fourth opening (54), the first outflow passage (44), and the exhaust fan (26) in this order, and from the exhaust outlet (23) as exhaust air (EA). It is discharged outside the room.

  On the other hand, the 2nd air which flowed in from the outdoor air suction inlet (21) is sent into a 1st heat exchange chamber (41) through a 1st inflow path (43) through a 1st opening (51). In the first heat exchange chamber (41), the second air passes through the first heat exchanger (61) from top to bottom. In the first heat exchanger (61), the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture desorbed from the adsorbent is given to the second air passing through the first heat exchanger (61). Thereafter, the humidified second air sequentially passes through the seventh opening (57), the second outflow passage (46), and the air supply fan (25), and is supplied as supply air (SA) from the air supply outlet (24). Supplied indoors.

  Next, the second operation during the humidifying operation will be described with reference to FIGS. 3 and 7. In the second operation, the outdoor heat (OA) that is the second air is humidified in the second heat exchanger (62), and the indoor air (RA) that is the first air in the first heat exchanger (61). Water is collected from the water.

  During the second operation, in the refrigerant circuit (60), the four-way switching valve (64) is switched to the state shown in FIG. When the compressor (63) is operated in this state, the refrigerant circulates in the refrigerant circuit (60), the first heat exchanger (61) becomes an evaporator, and the second heat exchanger (62) becomes a condenser. A second refrigeration cycle operation is performed.

  In the second operation, the second opening (52), the third opening (53), the fifth opening (55), and the eighth opening (58) are in the open state, and the first opening (51) and the fourth opening (58) are in the open state. The opening (54), the sixth opening (56), and the seventh opening (57) are closed. Then, as shown in FIG. 7, indoor air (RA) as first air is supplied to the first heat exchanger (61), and outdoor air as second air is supplied to the second heat exchanger (62). (OA) is supplied.

  Specifically, the 1st air which flowed in from the indoor air suction inlet (22) is sent into a 1st heat exchange chamber (41) through a 5th opening (55) from a 2nd inflow path (45). In the first heat exchange chamber (41), the first air passes through the first heat exchanger (61) from top to bottom. In the first heat exchanger (61), moisture in the first air is adsorbed by the adsorbent supported on the surface thereof. The heat of adsorption generated at that time is absorbed by the refrigerant. Thereafter, the first air deprived of moisture passes through the third opening (53), the first outflow passage (44), and the exhaust fan (26) in this order, and is discharged from the exhaust outlet (23) as exhaust air (EA). It is discharged outside the room.

  On the other hand, the 2nd air which flowed in from the outdoor air suction inlet (21) is sent into a 2nd heat exchange chamber (42) through a 2nd opening (52) from a 1st inflow path (43). In the second heat exchange chamber (42), the second air passes through the second heat exchanger (62) from top to bottom. In the second heat exchanger (62), the adsorbent supported on the outer surface is heated by the refrigerant, and moisture is desorbed from the adsorbent. The moisture desorbed from the adsorbent is given to the second air passing through the second heat exchanger (62). Thereafter, the humidified second air sequentially passes through the eighth opening (58), the second outflow passage (46), and the air supply fan (25), and serves as supply air (SA) from the air supply outlet (24). Supplied indoors.

-Effect of Embodiment 1-
In this embodiment, the compressor (63), the electric expansion valve (65) of the refrigerant circuit (60), and the four-way switching valve (64) for reversing the refrigerant circulation direction together with the heat exchanger (61, 62) are casings. (11) is installed inside. For this reason, since it can be shipped and installed with the refrigerant filled, the installation work is easy, and the efficiency of the humidity control device can be improved by reducing the pressure loss and increasing the condensation temperature. .

(Embodiment 2)
FIG. 8 shows Embodiment 2 of the present invention, which is different in the arrangement positions of the outdoor air inlet (21), the indoor air inlet (22), the exhaust outlet (23), and the air supply outlet (24). Different from the first embodiment. In addition, in each following embodiment, the same code | symbol is attached | subjected about the same part as FIGS. 1-7, the detailed description is abbreviate | omitted, and the humidity control operation | movement of a humidity control apparatus (10) is the said Embodiment 1. FIG. Are omitted because they are exactly the same.

  Specifically, the fourth side plate (15) on the back side of the casing (11) is formed with an outdoor air inlet (21) on the upper side near the first side plate (12), and closer to the second side plate (13). An exhaust outlet (23) is formed. On the other hand, the third side plate (14) on the front side of the casing (11) is formed with an air supply outlet (24) near the second side plate (13), and the indoor air suction is located above the first side plate (12). A mouth (22) is formed.

  As shown by a two-dot chain line in FIG. 8, the outdoor air suction duct (71) is connected to the outdoor air suction port (21) of the fourth side plate (15) in the casing (11), and the exhaust blower outlet (23). While the exhaust outlet duct (73) is connected, the indoor air inlet duct (72) is connected to the indoor air inlet (22) of the third side plate (14) in the casing (11), and the air supply outlet (24) An air supply / air discharge duct (74) is connected to the main body.

  Thus, the outdoor ducts (71, 73) are arranged on the fourth side plate (15) of the casing (11), and the indoor ducts (72, 74) are arranged on the third side plate (14) of the casing (11). Therefore, the ducts (71, 72, 73, 74) can be arranged straight in the room or outdoors.

(Other embodiments)
The first inflow path (43) and the first outflow path (44) of the casing (11) are reversed upside down, and the second inflow path (45) and the second outflow path (46) are reversed upside down. In the face plate (not shown), an air supply outlet (24) is formed below the air supply fan (25), and an indoor air inlet (22) is formed below the first inlet channel (43). A so-called cassette type may be formed. Then, the outdoor air suction duct (71) is connected to the outdoor air suction port (21) of the fourth side plate (15) in the casing (11), and the exhaust air discharge duct (73) is connected to the exhaust air outlet (23). Also good. Thus, it is not necessary to provide ducts (72, 74) communicating with the room, so that a space such as a ceiling can be used effectively.

  Moreover, in the said embodiment, although the four-way switching valve (64) was used as an inversion mechanism, you may comprise by four electromagnetic valves.

  On the other hand, it goes without saying that the humidity control apparatus (10) of the present invention may be installed on the floor instead of the ceiling.

  As described above, the present invention is useful for a humidity control apparatus that performs a refrigeration cycle to regenerate or cool an adsorbent.

It is a perspective view of a humidity control apparatus. It is a schematic block diagram of the humidity control apparatus in Embodiment 1. FIG. 2 is a piping system diagram illustrating a refrigerant circuit of the humidity control apparatus in the first embodiment. It is a schematic block diagram of the humidity control apparatus which shows the flow of the air in the 1st operation | movement of a dehumidification driving | operation. It is a schematic block diagram of the humidity control apparatus which shows the flow of the air in 2nd operation | movement of a dehumidification driving | operation. It is a schematic block diagram of the humidity control apparatus which shows the flow of the air in the 1st operation | movement of a humidification driving | operation. It is a schematic block diagram of the humidity control apparatus which shows the flow of the air in 2nd operation | movement of a humidification driving | operation. FIG. 3 is a diagram corresponding to FIG. 2 in Embodiment 2.

Explanation of symbols

10 Humidity control device 11 Casing
17 1st space
18 Second space 21 Outdoor air inlet 22 Indoor air inlet 23 Exhaust air outlet 24 Air supply outlet
25 Air supply fan
26 Exhaust fan 60 Refrigerant circuit 61 First heat exchanger 62 Second heat exchanger 63 Compressor 64 Four-way switching valve (reversing mechanism)
65 Electric expansion valve (expansion mechanism)
71 Outdoor air suction duct 72 Indoor air suction duct 73 Exhaust air discharge duct 74 Air supply air discharge duct

Claims (3)

A humidity control apparatus that supplies one of the dehumidified first air and the humidified second air to the room and discharges the other to the outside,
A refrigerant circuit (60) in which the first and second heat exchangers (61, 62) carrying the adsorbent are connected to perform a refrigeration cycle and the refrigerant circulation direction can be reversed;
A casing (11) in which the heat exchanger (61, 62) is installed in an internal air passage;
In the casing (11), the first air passes through the heat exchanger (61, 62) as the evaporator and the second air passes through the heat exchanger (61, 62) as the condenser. A switching mechanism for switching the air flow path according to the refrigerant circulation direction in the refrigerant circuit (60),
An air supply fan (25) for supplying air indoors;
An exhaust fan (26) for supplying air to the outside,
The compressor (63), the expansion mechanism (65) of the refrigerant circuit (60), and the reversing mechanism (64) for reversing the refrigerant circulation direction include the heat exchanger (61, 62) and the casing (11). Installed in the
Inside the casing (11), a first space (17) in which the air supply fan (25) and an exhaust fan (26) are arranged, and the first and second heat exchangers (61, 62) are arranged. Divided into a second space (18),
The first space (17) is partitioned into a space in which the air supply fan (25) is accommodated and a space in which the exhaust fan (26) is accommodated.
When the air that has passed through the first heat exchanger (61) and the air that has passed through the second heat exchanger (62) are supplied indoors, the air supply fan (25) is stored in the space. Those who are discharged to the outside flow into the space where the exhaust fan (26) is stored,
The humidity control apparatus, wherein the compressor (63) of the refrigerant circuit (60) is disposed in a space in which the exhaust fan (26) is accommodated. The humidity control apparatus according to claim 1,
The casing (11) is connected to the air outlet (24) and the inlet (22) for connecting the duct (72, 74) communicating with the room and the duct (71, 73) communicating to the outside. The air conditioner is characterized in that the air outlet (23) and the air inlet (21) are respectively opened. The humidity control apparatus according to claim 1,
The casing (11) is connected to a blower outlet (24) and a suction port (22) for directly communicating the inside of the casing (11) and the room with a duct (71, 73) for communicating with the outside. A humidity control device, wherein the outlet (23) and the suction port (21) are opened.

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