JP5724914B2 - Humidity control device - Google Patents

Description

  The present invention relates to a humidity control apparatus that adjusts the humidity of an air with an adsorption heat exchanger.

  Conventionally, humidity control apparatuses that dehumidify or humidify indoor air are known. As this type of humidity control apparatus, there is one provided with an adsorption heat exchanger on which an adsorbent is supported.

  For example, the humidity control apparatus disclosed in Patent Document 1 is configured as a floor-standing type that is disposed inside a closet or the like. This humidity control apparatus has a substantially rectangular parallelepiped box-shaped casing, and an air flow path is formed inside the casing.

  Specifically, as shown in FIGS. 1 and 2 of the same document, four ducts connected to the room and the outdoors are connected to the upper end of the casing of the humidity control apparatus. Inside the upper part of the casing, as viewed from the front side, an interior air suction chamber is defined on the front left side, an indoor air supply chamber on the front right side, an outdoor exhaust chamber on the rear right side, and an outside air suction chamber on the rear left side. The An exhaust fan is installed in the outdoor exhaust chamber, and an air supply fan is installed in the indoor air supply chamber. In addition, two humidity control chambers that can communicate with the respective chambers at the top of the casing are formed inside the casing. An adsorption heat exchanger carrying an adsorbent is installed in each humidity control chamber.

  In the dehumidifying operation of the humidity control apparatus, outdoor air is sucked into the outdoor air suction chamber through the duct, and this air passes through one adsorption heat exchanger. In this adsorption heat exchanger, water vapor in the outdoor air is carried on the adsorbent, and this air is dehumidified. The dehumidified air sequentially passes through the indoor air supply chamber and the duct, and is supplied to the indoor space. Further, in this dehumidifying operation, room air is sucked into the room air suction chamber through the duct, and this air passes through the other adsorption heat exchanger. In this adsorption heat exchanger, water vapor adsorbed by the adsorbent is released into the room air, and the adsorbent is regenerated. The air used for regeneration of the adsorbent of the adsorption heat exchanger passes through the outdoor exhaust chamber and the duct in this order, and is discharged to the outdoor space.

  Moreover, in the humidity control apparatus disclosed in this document, the front panel on the front side of the casing is configured to be detachable from the casing body. For example, when performing maintenance on the exhaust fan and the air supply fan described above, first, the front panel is removed from the casing body. Next, in the upper part of the casing, the vertical partition plate and the horizontal partition plate for partitioning the four rooms described above are pulled out to the front side. In this state, by further pulling out each fan to the front side, maintenance of these fans can be performed (see, for example, paragraph 0110 of Patent Document 1).

JP 2009-92299 A

  In the humidity control apparatus disclosed in Patent Document 1, when performing maintenance of each fan, both the vertical partition plate and the horizontal partition plate are pulled out, which increases the maintenance work man-hours and work time. Further, if the structure is such that both partition plates are pulled out, it is necessary to provide sufficient sealing around these partition plates in order to partition the four rooms without gaps, resulting in a complicated device structure.

  In particular, in the structure of the humidity control apparatus disclosed in the same document, the internal pressure of the outdoor exhaust chamber in which the exhaust fan is installed is smaller than the internal pressure of the front external air suction chamber. For this reason, there exists a possibility that the outdoor air taken in by the external air suction chamber may bypass to an outdoor exhaust chamber through the clearance around a horizontal partition plate. Similarly, the internal pressure of the indoor air supply chamber in which the air supply fan is installed is smaller than the internal pressure of the internal air suction chamber in front of it. For this reason, the room air taken into the room air suction chamber may also be bypassed to the room air supply chamber through the gap around the horizontal partition plate. As a result, in this humidity control apparatus, there arises a problem that the sealing structure is further complicated in order to improve the sealing performance around each partition plate.

  In addition, in the humidity control device disclosed in the same document, due to the internal pressure difference between the four rooms described above (that is, the internal pressure difference between the outdoor air suction chamber and the outdoor exhaust chamber, and the internal pressure difference between the internal air suction chamber and the indoor air supply chamber), The horizontal partition plate is drawn toward the rear. As a result, the sealing material around the horizontal partition plate is likely to be deteriorated, resulting in a problem that the replacement frequency of the sealing material is increased.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a humidity control device that can easily maintain an air supply fan and an exhaust fan and can simplify a seal structure of a partition plate. It is to be.

In the first invention, an outside air suction chamber (19c), an inside air suction chamber (19d), an indoor air supply chamber (19a), and an outdoor exhaust chamber (19b) are partitioned inside, and the respective chambers (19a, 19b, 19c) , 19d) is installed in a casing (11) in which a humidity control chamber (66) capable of communicating with each chamber (19a, 19b, 19c, 19d) is formed, and the indoor air supply chamber (19a). An air supply fan (85) that conveys air into the room, an exhaust fan (88) that is installed in the outdoor exhaust chamber (19b) and that conveys air outside the room, and a humidity control chamber (66) that dehumidifies the air Alternatively, a humidity control device including an adsorption heat exchanger (33) for humidification is targeted. Then, the humidity control apparatus connects the outside air suction chamber (19c) and the inside air suction chamber (19d) arranged in the front-rear direction to the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) arranged in the front-rear direction. The main partition (56) extending forward and backward of the casing (11) so as to partition, and the interior of the front chamber (19a) of the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) to the outside The casing (11) so as to divide the front panel (14) detachably attached to the front surface of the casing (11), the indoor air supply chamber (19a), and the outdoor exhaust chamber (19b) forward and backward. includes a supply and exhaust partition portion removably attached (80), sidewall portion after being formed along the inner surface of the casing rear panel (11) (15) and (57) to said main partition portion (56 ) Is formed integrally with the rear side wall part (57), and only the main partition part (56) is taken independently. The air supply / exhaust partition (80) is configured so as not to be detached from the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) during operation of the air supply fan (85) and the exhaust fan (88). Is arranged at a position that partitions the front and rear, and is configured to be able to be pulled out to the outside of the casing (11) during maintenance of the fans (85, 88) .

  In the humidity control apparatus according to the first aspect of the invention, when the air supply fan (85) and the exhaust fan (88) are operated, indoor air is sucked into the indoor air suction chamber (19d), and outdoor air is sucked into the outdoor air suction chamber (19c). ) These airs are dehumidified or humidified by the adsorption heat exchanger (33) of the humidity control chamber (66) and then sent to the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b). The air in the indoor air supply chamber (19a) is conveyed into the room by the air supply fan (85). The air in the outdoor exhaust chamber (19b) is exhausted outside by the exhaust fan (88).

  In the first aspect of the invention, the main partition portion (56) includes the inside air suction chamber (19d) and the outside air suction chamber (19c) arranged in the front and rear, and the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) arranged in the front and rear. Partitioned by. The indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) are partitioned by the air supply / exhaust partition (80). The air supply / exhaust partition (80) is configured to be detachable from the casing (11).

  During maintenance of each fan (85, 88), the front panel (14) is removed from the casing (11). Then, one of the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) can be exposed to the outside. As a result, one of the air supply fan (85) and the exhaust fan (88) can be taken out of the casing (11). Next, when the air supply / exhaust partition (80) is taken out, the other of the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) is exposed. As a result, the other of the air supply fan (85) and the exhaust fan (88) can be taken out of the casing (11).

  In the present invention, both the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b), in which the fans (85, 88) are installed, are partitioned by the air supply / exhaust partition (80). 80) is removable. The differential pressure between the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) is the difference between the internal air suction chamber (19d) and the indoor air supply chamber (19a), or the outdoor air suction chamber (19c). Compared to the differential pressure between the air and the outdoor exhaust chamber (19b). For this reason, simplification of the seal structure around the air supply / exhaust partition (80) can be achieved.

  According to a second invention, in the first invention, the outside air suction chamber (19c) is disposed behind the inside air suction chamber (19d) in the casing (11), and the outdoor exhaust chamber (19b) It arrange | positions behind the said indoor air supply chamber (19a), It is characterized by the above-mentioned.

  In the second invention, the outdoor air suction chamber (19c) and the outdoor exhaust chamber (19b) are respectively arranged closer to the rear of the casing (11), and the indoor air suction chamber (19d) and the indoor air supply chamber (19a) are respectively It arrange | positions near the front of a casing (11). That is, in the present invention, the two chambers (19b, 19c) communicating with the outside are aggregated rearward, and the two chambers (19a, 19d) communicating with the indoors are aggregated forward.

  According to a third invention, in the first or second invention, inside the casing (11), the outside air suction chamber (19c), the inside air suction chamber (19d), the indoor air supply chamber (19a), And a damper partition plate (45, 48) having a plurality of dampers (D1 to D8) for intermittently connecting each chamber (19a, 19b, 19c, 19d) of the outdoor exhaust chamber (19b) and the humidity control chamber (66). The damper partition plate (45, 48) extends in a direction along the main partition portion (56) and is formed below the main partition portion (56), and the front panel (14) It is characterized in that it can be attached to the back side of the back and forth freely.

  In the third invention, each chamber (19a, 19b, 19c, 19d) and the humidity control chamber (66) are intermittently connected by opening and closing each damper (D1 to D8) of the damper partition plate (45, 48). Is done. In the present invention, when the front panel (14) is removed, the damper partition plates (45, 48) can be taken out forward. The damper partition plates (45, 48) are formed to extend in a direction along the main partition portion (56), and are disposed below the main partition portion (56). For this reason, a damper partition plate (45,48) and a main partition part (56) do not interfere in the front-back direction.

  According to 1st invention, after removing a front panel (14), both an air supply fan (85) and an exhaust fan (88) can be maintained by taking out an air supply / exhaust partition part (80). That is, in the humidity control apparatus of the conventional example, the two partition portions are removed in order to take out the air supply fan (85) and the exhaust fan (88), but in the present invention, the air supply / exhaust partition portion (80) Just take it out. Therefore, according to the present invention, it is possible to reduce the man-hours and time for maintenance related to the fans (85, 88).

  In the present invention, the differential pressure between the space (that is, the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b)) sandwiching the removable air supply / exhaust partition (80) is the internal air suction chamber (19d). And the differential pressure between the indoor air supply chamber (19a) and the differential pressure between the outdoor air suction chamber (19c) and the outdoor exhaust chamber (19b). For this reason, since air leakage in the gap around the air supply / exhaust partition (80) is also reduced, the seal structure around the air supply / exhaust partition (80) can be omitted or simplified. Further, when the differential pressure between the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) is small, the seal portion around the air supply / exhaust partition portion (80) is hardly pulled to one side. Therefore, deterioration of the seal portion can be suppressed, and the seal structure can be simplified or the maintenance frequency of the seal portion can be reduced.

  According to the second invention, the outdoor air suction chamber (19c) and the outdoor exhaust chamber (19b) are gathered near the rear of the casing (11). For this reason, the outside duct communicating with the outside can be easily connected to the outside air suction chamber (19c) and the outside exhaust chamber (19b), and the space required for arranging the duct can be reduced.

  According to the third invention, the damper partition plate (45, 48) can be easily taken out of the casing (11) without interference between the main partition portion (56) and the damper partition plate (85, 88). Maintenance can be performed.

FIG. 1 is a perspective view illustrating a casing structure of a humidity control apparatus according to an embodiment. FIG. 2 is a perspective view illustrating a frame structure of the humidity control apparatus according to the embodiment. FIG. 3 is a configuration diagram schematically illustrating the humidity control apparatus according to the embodiment. FIG. 3A is a top view of the humidity control apparatus, and FIG. 3B is an internal structure of the humidity control apparatus. FIG. 3C shows the internal structure of the humidity control apparatus from the left side, and FIG. 3D shows the internal structure of the humidity control apparatus from the right side. FIG. 4 is a configuration diagram schematically illustrating the humidity control apparatus according to the embodiment. FIG. 4A illustrates the internal structure of the humidity control apparatus as viewed from the YY cross section of FIG. FIG. 4B shows the internal structure of the humidity control apparatus as viewed from the ZZ cross section of FIG. FIG. 5 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the internal structure of the lower space. FIG. 6 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the reheat heat exchanger. FIG. 7 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the lower damper. FIG. 8 is an assembled perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the peripheral structure of the upper damper. FIG. 9 is a perspective view of the adsorption heat exchanger according to the embodiment in which the surrounding humidity control chamber is added using a virtual line. FIG. 10 is a perspective view showing the internal structure of the humidity control apparatus according to the embodiment, and particularly shows the internal structure of the upper space. FIG. 11 is a schematic configuration diagram of a refrigerant circuit of the humidity control apparatus according to the embodiment. FIG. 12 is a diagram corresponding to FIG. 3 illustrating the air flow of the first operation during the dehumidifying operation or the first operation during the humidifying operation of the humidity control apparatus according to the embodiment. FIG. 13 is a diagram corresponding to FIG. 4 illustrating the air flow of the first operation during the dehumidifying operation or the first operation during the humidifying operation of the humidity control apparatus according to the embodiment. FIG. 14 is a diagram corresponding to FIG. 3 illustrating the air flow of the second operation during the dehumidifying operation or the second operation during the humidifying operation of the humidity control apparatus according to the embodiment. FIG. 15 is a diagram corresponding to FIG. 4 illustrating the air flow of the second operation during the dehumidifying operation or the second operation during the humidifying operation of the humidity control apparatus according to the embodiment. FIG. 16 is a perspective view showing the internal structure of the upper space of the humidity control apparatus, and is for explaining the step of taking out (or putting in) the air supply fan. FIG. 17 is a perspective view showing the internal structure of the upper space of the humidity control apparatus, for explaining the step of taking out (or putting in) the air supply / exhaust partition (the third upper partition member (80)). It is. FIG. 18 is a perspective view showing the internal structure of the upper space of the humidity control apparatus, and is for explaining the step of taking out (or putting in) the exhaust fan. FIG. 19 is a perspective view showing the peripheral structure of the lower damper of the humidity control apparatus, for explaining the process of pulling out the lower damper. FIG. 20 is a perspective view showing the peripheral structure of the upper damper of the humidity control apparatus, and is for explaining a process of pulling out the upper damper.

  An embodiment of the present invention will be described. The embodiments described below are essentially preferable examples, and are not intended to limit the scope of the present invention, its application, or its use.

  The humidity control device (10) according to the embodiment of the present invention is a floor-type humidity control device that is installed on the floor surface of the room and adjusts the humidity of the room. The humidity control apparatus (10) is installed, for example, in a storage space of a closet in which clothes and the like are stored.

  The configuration of the humidity control apparatus (10) will be described with reference to the drawings. In the following description, “up”, “down”, “right”, “left”, “front”, and “rear” are indicated in principle by referring to the humidity control apparatus (10) shown in FIG. It is based on the case. 3 and 4 schematically show the humidity control device (10). FIG. 3 (A) shows the upper surface of the humidity control device (10), and FIG. 3 (B) shows the humidity control device. FIG. 3 (C) shows the internal structure on the left side of the humidity control device (10), and FIG. 3 (D) shows the internal structure on the right side of the humidity control device. 4A shows the internal structure of the humidity control apparatus of FIG. 3A as viewed from the YY cross section, and FIG. 4B shows the humidity control apparatus of FIG. 4A. The internal structure is viewed from the ZZ cross section.

<Case structure>
As shown in FIG. 1, the humidity control apparatus (10) includes a vertically long rectangular parallelepiped box-shaped casing (11). The casing (11) includes a rectangular plate-like bottom plate (12) and a top plate (13), and four rectangular plate-like panels (14, 14) corresponding to the four sides of the bottom plate (12) and the top plate (13). 15,16,17). These panels (14,15,16,17) consist of a front panel (14) on the front side, a rear panel (15) on the rear side, a right side panel (16) on the right side, and a left side panel on the left side ( 17). In the casing (11), the bottom plate (12), the top plate (13), the rear panel (15), the right side panel (16), and the left side panel (17) have a casing body (11a ). The front panel (14) is configured to be detachable from the casing body (11a) via a fastening member such as a screw. The casing (11) has a rear panel (15) installed in the vicinity of the indoor wall.

  The front panel (14) includes a lower panel (14a) that covers the lower space (S1) of the casing (11), an upper panel (14b) that covers the upper space (S3) of the casing (11), and a casing (11) And an intermediate panel (14c) covering the intermediate space (S2). Further, a filter maintenance panel (14d) is provided at the lower left corner of the lower panel (14a). In the front panel (14), these panels (14a, 14b, 14c, 14d) are configured to be individually removable.

  Four duct connection ports (18) are attached to the top plate (13). Specifically, the top plate (13) has an air supply connection port (18a) on the front right side, an exhaust connection port (18b) on the rear right side, and an outside air connection port (18c) on the rear left side. The inside air connection port (18d) is provided on the front left side. The air supply connection port (18a) and the indoor air connection port (18d) communicate with the indoor space via the duct, respectively, and the exhaust connection port (18b) and the outdoor air connection port (18c) communicate with the outdoor space via the duct, respectively. Communicate. That is, in the humidity control apparatus (10), the air supply connection port (18a) and the indoor air connection port (18d) connected to the indoor space are arranged in a concentrated manner on the front side of the casing (11), and are connected to the outdoor space. (18b) and the outside air connection port (18c) are collectively arranged on the rear side of the casing (11). Outdoor air (OA) is sucked into the outdoor air connection port (18c), and indoor air (RA) is sucked into the indoor air connection port (18d). Supply air (SA) is blown into the room from the air supply connection port (18a), and exhaust air (EA) is blown out of the room through the exhaust connection port (18b).

<Frame structure>
As shown in FIG. 2, four vertical frames (support members) (21) corresponding to the four corners of the bottom plate (12) are provided inside the casing (11). These vertical frames (21) include a first vertical frame (21a) on the front right side, a second vertical frame (21b) on the rear right side, a third vertical frame (21c) on the rear left side, and a left side on the front side. It is composed of a fourth vertical frame (21d). Each vertical frame (21) extends vertically to a position slightly above the middle portion in the height direction of the casing (11). That is, in the casing (11), there is no vertical frame directly connected to the bottom plate (12) between the top plate (13) and the upper end of each vertical frame (21).

  Four horizontal frames (22) (beam members) extending in the horizontal direction are bridged on top of each vertical frame (21). These horizontal frames (22) include a first horizontal frame (22a) between a first vertical frame (21a) and a second vertical frame (21b), a second vertical frame (21b), and a third vertical frame ( 21c), a second horizontal frame (22b), a third vertical frame (21c), a third horizontal frame (22c) between the fourth vertical frame (21d), and a fourth vertical frame (21d). And a fourth horizontal frame (22d) between the first vertical frame (21a). The second, third, and fourth horizontal frames (22b, 22c, 22d) are connected to the upper ends of the corresponding vertical frames (21). On the other hand, the first horizontal frame (22a) is connected to a portion slightly lower than the upper ends of the first and second vertical frames (21a, 21b).

  Three intermediate frames (23) extending horizontally are provided on the lower side of the horizontal frame (22). The intermediate frame (23) includes a first intermediate frame (23a) formed below the first horizontal frame (22a) and a second intermediate frame formed below the second horizontal frame (22b). (23b) and a third intermediate frame (23c) formed below the third horizontal frame (22c).

  The vertical frame (21), the horizontal frame (22), and the intermediate frame (23) are heavy components that are relatively heavy among the components of the humidity control device (10). ) And the adsorption heat exchanger (33)) act to constitute a support member that supports them.

<Inside space of casing>
As shown in FIG. 2, the inside of the casing (11) includes a lower space (S1) formed on the back side of the lower panel (14a) and an intermediate space (S2) formed on the back side of the intermediate panel (14c). ) And the upper space (S3) formed on the back side of the upper panel (14b).

<Components in the lower space>
As shown in FIGS. 5 and 6, a lower partition member (41) is installed in the lower space (S1) along the left side panel (17). The lower partition member (41) is made of a resin material such as polystyrene, and is formed in a frame shape in which the upper side and the lower side are opened. The lower partition member (41) includes a lower partition (41a) that divides the lower space (S1) left and right, and a small-diameter cylindrical portion having a substantially rectangular cross section disposed adjacent to the third vertical frame (21c). 41b) and a large-diameter cylindrical portion (41c) having a substantially rectangular cross section disposed adjacent to the fourth vertical frame (21d). An outside air inflow path (61) is defined inside the small diameter cylindrical portion (41b). A reheat chamber (63) is defined inside the large diameter cylindrical portion (41c). The outside air inflow channel (61) and the reheat chamber (63) communicate with each other through the communication port (62) (see FIG. 6).

  The reheat chamber (63) is provided with an upper support plate (41d) formed integrally with the lower partition member (41). The upper support plate (41d) is continuous with the left inner wall of the large-diameter cylindrical portion (41c) and is supported in a horizontal state so as to be parallel to the bottom plate (12). In the reheat chamber (63), a lower outside air flow path (63a) continuous to the communication port (62) is formed below the upper support plate (41d), and a lower outside air flow path (upper side of the upper support plate (41d) ( An upper outside air flow path (63b) continuous with 63a) is formed (see FIGS. 3B and 6). That is, in the reheat chamber (63), the vertical cross section of the air from the inflow side of the lower outside air flow path (63a) to the outflow side of the upper outside air flow path (63b) is substantially U-shaped (U-shaped). A flow path is formed.

  As shown in FIG. 6 and the like, the lower outside air flow path (63a) is provided with an insect filter (26), a pleat filter (27), and a reheat unit (28) in order from the upstream side to the downstream side. It is done.

  The insect filter (26) is a net-like member that captures insects and relatively large dust in the outdoor air. The pleated filter (27) is an air cleaning filter having finer eyes than the insect filter (26), and traps relatively small dust in the outdoor air. The lower partition member (41) is provided with a maintenance lid (41e) on the back side of the filter maintenance panel (14d) described above (see FIG. 5). The maintenance lid (41e) is configured to freely open and close the maintenance ports of the insect removing filter (26) and the pleat filter (27). That is, when the filter maintenance panel (14d) is removed and then the maintenance lid (41e) is opened, the front ends of the insect filter (26) and the pleat filter (27) are exposed to the outside of the casing body (11a).

  The reheat unit (28) has a frame (29) and a reheat heat exchanger (35) fixed inside the frame (29). The frame (29) includes a pair of side stays (29a) and a frame body (29b) that is sandwiched between the pair of side stays (29a) so that the inner wall faces obliquely downward. The frame body (29b) has an obliquely inclined opening surface (29c), and the reheat heat exchanger (35) is held along the opening surface (29c). A reheat heat exchanger (35) comprises the heating heat exchanger which heats outdoor air with a refrigerant | coolant.

  As shown in FIG. 5, in the lower space (S1), the machine room (60) is partitioned in a substantially half on the right side (outside of the lower partition member (41)). In the machine room (60), an electrical component box (90) is installed on the back side of the front panel (14). The electrical component box (90) accommodates electrical components such as a printed circuit board for a power supply circuit of a motor of the compressor (31) and a reactor electrically connected to the circuit on the printed circuit board. In the machine room (60), a compressor (31) and a four-way selector valve (32) are installed on the back side of the electrical component box (90). That is, when the lower panel (14a) of the front panel (14) is removed, the electrical component box (90) is exposed to the outside of the casing body (11a). Further, when the electrical component box (90) is taken out, the compressor (31) and the four-way selector valve (32) are exposed to the outside of the casing body (11a).

<Intermediate space>
In the intermediate space (S2), a first intermediate partition member (43), a second intermediate partition member (44), and a third intermediate partition member (47) are provided in order from the lower side to the upper side. These intermediate partition members (43, 44, 47) are all resin members such as polystyrene molded integrally.

  As shown in FIG. 7, the first intermediate partition member (43) closes the upper open portion of the machine room (60). On the upper surface of the first intermediate partition member (43), a frame portion (43a) protruding in a rectangular shape and a pair of concave grooves (43c, 43c) formed on the left and right outer sides of the frame portion (43a) And are formed. The frame portion (43a) is formed across the first intermediate partition member (43). A water receiving portion (43b) for receiving condensed water generated in the humidity control chamber (66a, 66b) is formed inside the frame portion (43a). The water receiving portion (43b) is formed across the first intermediate partition member (43). The bottom surface of the water receiving portion (43b) is inclined so as to face slightly upward from the horizontal plane. That is, the water accumulated in the water receiving portion (43b) is guided forward along the inclined bottom surface. The concave grooves (43c, 43c) extend in the front-rear direction along the left and right side walls of the frame portion (43a).

  As shown in FIG. 8, the second intermediate partition member (44) is supported by the first intermediate frame (23a) and the second intermediate frame (23b) while being predetermined above the first intermediate partition member (43). Are arranged at intervals. In the second intermediate partition member (44), concave grooves (44a, 44a) extending in the front-rear direction are formed at positions corresponding to the concave grooves (43c, 43c) of the first intermediate partition member (43).

  On the other hand, as shown in FIG. 7, between the first intermediate partition member (43) and the second intermediate partition member (44), there are two lower damper partition plates (45) and one horizontal partition. A plate (46) is formed. The two lower damper partition plates (45) and the one horizontal partition plate (46) are arranged vertically so that the plate thickness directions thereof are horizontal. The two lower damper partition plates (45) are composed of an outside air damper partition plate (45a) and an exhaust damper partition plate (45b).

  The lower part of the outside air damper partition plate (45a) is fitted into the left groove (43c) of the first intermediate partition member (43), and the upper end of the outside air damper partition plate (45a) is the left groove of the second intermediate partition member (44). (44a). The lower end of the exhaust damper partition member (45b) is fitted into the right groove (43c) of the first intermediate partition member (43), and the upper end of the exhaust damper partition member (45b) is the left groove of the second intermediate partition member (44). (44a). The front end of the lower damper partition (45) is located on the back side of the front panel (14). That is, when the front panel (14) is removed, the front end of the lower damper partition (45) is exposed to the outside of the casing body (11a). In a state where the front panel (14) is removed, the lower damper partition plate (45) can be pulled back and forth along the respective concave grooves (43c, 44a).

  As shown in FIGS. 3, 7, and 8, an intermediate outside air flow path (64) communicating with the reheat chamber (63) is formed on the left side of the outside air damper partition plate (45a) so as to extend back and forth. The outside air damper partition plate (45a) is provided with a first damper (D1) on the front side and a second damper (D2) on the rear side. On the right side of the exhaust damper partition plate (45b), an intermediate exhaust passage (65) is formed extending forward and backward. The exhaust damper partition plate (45b) is provided with a third damper (D3) on the front side and a fourth damper (D4) on the rear side.

  As shown in FIG. 7 and FIG. 9, the space between the outside air damper partition plate (45a) and the exhaust damper partition plate (45b) is divided into two humidity control chambers (66) by the horizontal partition plate (46). It has been. In these humidity control chambers (66), the front space forms a first humidity control chamber (66a), and the rear space forms a second humidity control chamber (66b). The first humidity control chamber (66a) is formed at a position corresponding to the first damper (D1) and the third damper (D3), and the second humidity control chamber (66b) is the second damper (D2) and the fourth damper. It is formed at a position corresponding to the damper (D4). The first humidity control chamber (66a) and the second humidity control chamber (66b) are formed over the inside of the second intermediate partition member (44).

  As shown in FIG. 9, the two adsorption heat exchangers (33) are divided into a first adsorption heat exchanger (33a) housed in the first humidity control chamber (66a) and a second humidity control chamber (66b). It is comprised with the 2nd adsorption heat exchanger (33b) accommodated. The adsorption heat exchanger (33) is configured such that an adsorbent is supported on the surface of a cross fin type fin-and-tube heat exchanger body (34).

  The heat exchanger body (34) of the adsorption heat exchanger (33) includes a copper heat transfer tube (34a) and a number of aluminum fins (34b). The heat transfer tube (34a) has a straight tube portion and a U-shaped portion formed alternately and continuously in a meandering shape. The fin (34b) is formed in a vertically long plate shape, and the straight pipe portion of the heat transfer tube (34a) penetrates in the thickness direction. That is, a large number of fins (34b) are arranged in parallel along the axial direction of the straight tube portion of the heat transfer tube (34a).

  The adsorbent is supported on the surfaces of a large number of fins (34b) and heat transfer tubes (34a). The adsorbent is supported on the surfaces of a large number of fins (34b) and heat transfer tubes (34a). At the interface between the adsorbent and air, the moisture in the air is adsorbed to the adsorbent, or the adsorbed moisture is desorbed into the air (the adsorbent is regenerated). As the adsorbent, zeolite, silica gel, activated carbon, an organic polymer material having a hydrophilic functional group, or the like is used. Moreover, as an adsorbent, you may use the material (what is called a sorbent) which has the function not only to adsorb | suck moisture but to absorb moisture.

  The adsorption heat exchanger (33) is held in the storage chamber (67) so that the short sides of the fins (34b) are vertical and the U-shaped portions of the heat transfer tubes (34a) are located on the left and right sides.

  As shown in FIG. 8, the third intermediate partition member (47) is laminated on the upper side of the second intermediate partition member (44). A pair of wide grooves (47a, 47a) wide on the left and right are formed on the upper surface of the third intermediate partition member (47). A pair of upper damper partition plates (48) are fitted in the thickness direction in these wide grooves (47a). These upper damper partition plates (48) are arranged horizontally so that their thickness directions are vertical. The front end portion of the upper damper partition plate (48) is located on the back side of the front panel (14). That is, when the front panel (14) is removed, the front end portion of the upper damper partition (48) is exposed to the outside of the casing body (11a). When the front panel (14) is removed, the upper damper partition plate (48) can be pulled back and forth along the wide grooves (47a).

  The pair of upper damper partition plates (48) includes a left-side internal air damper partition plate (48a) and a right-side air supply damper partition plate (48b). The inside air damper partition plate (48a) is provided with a fifth damper (D5) on the front side and a sixth damper (D6) on the rear side. The supply damper partition plate (48b) is provided with a seventh damper (D7) on the front side and an eighth damper (D8) on the rear side. The fifth damper (D5) and the seventh damper (D7) are formed at positions corresponding to the first humidity control chamber (66a), and the sixth damper (D6) and the eighth damper (D8) are the second humidity control chamber. It is formed at a position corresponding to the chamber (66b).

  At the corners on the right rear side of the second intermediate partition member (44) and the third intermediate partition member (47), laterally long through holes extending in the front-rear direction are formed, and these through holes are continuously connected to the exhaust communication flow. Constructs a road (68).

  An outside air duct portion (53) of the first upper partition member (51) extends vertically in a corner on the left rear side of the intermediate space (S2) (see FIGS. 8 and 10). The lower end of the outside air duct part (53) is continuous with the large-diameter cylindrical part (41c) of the lower partition member (41). In the intermediate space (S2), a spacer member (24) is provided on the front side of the first humidity control chamber (66a). The spacer member (24) is interposed between the first intermediate partition member (43) and the first intermediate frame (23a) so as to ensure a predetermined interval.

<Upper space>
As shown in FIG. 10, a first upper partition member (51), a second upper partition member (54), and a third upper partition member (80) are provided in the upper space (S3). These partition members (51, 54, 80) are all polystyrene resin materials molded integrally. In the upper space (S3), the four upper chambers (19) are partitioned by these partition members (51, 54, 80). These upper chambers (19) consist of a front right-side indoor air supply chamber (19a), a rear right-side outdoor exhaust chamber (19b), a rear left-side outdoor air suction chamber (19c), and a front left-side indoor air suction Chamber (19d). The indoor air supply chamber (19a) communicates with the air supply connection port (18a), the outdoor exhaust chamber (19b) communicates with the exhaust connection port (18b), and the outdoor air suction chamber (19c) communicates with the external air connection port (18c). The room air suction chamber (19d) communicates with the room air connection port (18d). An air supply fan unit (84) is provided in the indoor air supply chamber (19a), and an exhaust fan unit (87) is provided in the outdoor exhaust chamber (19b).

  The first upper partition member (51) is provided on the left side of the upper space (S3). The first upper partition member (51) extends along the left side wall (52) formed across the front and rear ends of the casing (11) along the left side panel (17), and along the third vertical frame (21c). A cylindrical outside air duct portion (53) extending vertically. The outside air duct part (53) is arranged in the upper space (S3) and continues from the lower end of the large diameter duct part (53a) and the large diameter duct part (53a) that divides the outside air suction chamber (19c) inside. And a small-diameter duct portion (53b) that is disposed in the intermediate space (S2) and has a smaller diameter than the large-diameter duct portion (53a).

  In the upper space (S3), an outside air suction chamber (19c) is formed inside the large diameter duct portion (53a), and an inside air suction chamber (19d) is formed outside the large diameter duct portion (53a). In the upper space (S3), the upper inside air flow path (69) is partitioned from the outer lower side of the large diameter duct portion (53a) to the front panel (14). The upper end of the upper inside air channel (69) communicates with the inside air suction chamber (19d). Further, the fifth damper (D5) and the seventh damper (D7) of the internal air damper partition plate (48a) face the upper internal air flow path (69). A duct internal flow path (71) connected to the outside air inflow path (61) is formed inside the small diameter duct portion (53b) (see FIG. 3B).

  The second upper partition member (54) includes a right side wall portion (55) formed across the front and rear ends of the casing (11) along the right side panel (16) of the casing (11), and an upper space (S3). And a rear side wall portion (57) continuous to each rear end portion of the right side wall portion (55) and the central partition portion (56).

  A pedestal (55a) is formed inside the right side wall (55). The pedestal portion (55a) has a longitudinal section formed in an L shape, and extends back and forth from the rear side wall portion (57) to the front panel (14) side. A first installation surface (55c) on which the fan units (84, 87) and the third upper partition member (80) are installed so as to be able to be guided back and forth is formed on the upper end surface of the pedestal portion (55a).

  A columnar first contact portion (55b) extending in the vertical direction is formed at an intermediate portion in the front-rear direction of the right side wall portion (55). The rear end portion of the third upper partition member (80) contacts the front end of the first contact portion (55b). Further, a sealing material (not shown) is formed on the contact surface with respect to the third upper partition member (80) in the first contact portion (55b).

  The central partition (56) includes a vertical first vertical wall (56a), a horizontal wall (56b) bent horizontally from the lower end of the first vertical wall (56a), and a vertical from the right end of the horizontal wall (56b). And a bent second vertical wall (56c). A second installation surface (56d) on which the fan units (84, 87) and the third upper partition member (80) are installed so as to be guided back and forth is formed on the upper end surface of the central partition (56). .

  The central partition (56) divides the outside air suction chamber (19c) and the inside air suction chamber (19d) arranged in the front-rear direction from the outside exhaust chamber (19b) and the indoor air supply chamber (19a) arranged in the front-rear direction. In addition, a main partition extending in the front and rear direction of the casing (11) is formed. Since the central partition (56) is formed integrally with the right side wall (55) and the rear side wall (57) along the casing (11), the central partition (56) is independent of other members. You can't just remove it.

  A columnar second abutting portion (56e) extending vertically is formed at an intermediate portion in the front-rear direction of the central partition portion (56). The rear end portion of the third upper partition member (80) contacts the front end of the second contact portion (56e). Further, a sealing material (not shown) is formed on the contact surface with respect to the third upper partition member (80) at the second contact portion (56e).

  In the second upper partition member (54), a corner between the right side wall (55) and the rear side wall (57) and a corner between the central partition (56) and the rear side wall (57). In addition, an insertion part (58) is formed respectively. Reinforcing ribs (75) are inserted through the respective insertion portions (58). The upper end of each reinforcing rib (75) is fixed to the top plate (13) of the casing (11). These reinforcing ribs (75) constitute an attachment member to which the exhaust fan unit (87) is fixed and supported.

  The second upper partition member (54) is integrally formed with a horizontal partition (59) below the exhaust fan unit (87) (see FIGS. 4A and 17). In the upper space (S3), an outdoor exhaust chamber (19b) is defined on the upper side of the horizontal partition (59), and an upper air supply channel (from the lower side of the horizontal partition (59) to the front panel (14) ( 70) is sectioned. The outdoor exhaust chamber (19b) communicates with the exhaust communication channel (68) shown in FIG. The upper end of the upper air supply channel (70) communicates with the indoor air supply chamber (19a). Further, the sixth damper (D6) and the eighth damper (D8) of the supply damper partition plate (48b) face the upper supply passage (70).

  As shown in FIG. 17, a columnar third contact portion (59a) extending left and right is formed on the upper surface of the front edge of the horizontal partition portion (59). The rear end portion of the third upper partition member (80) contacts the front end of the third contact portion (59a). Further, a seal material (not shown) is formed on the third contact portion (59a) on the contact surface with respect to the third upper partition member (80).

  As shown in FIG. 10, the third upper partition member (80) includes a first side plate portion (81) formed along the right side wall portion (55) of the second upper partition member (54), and a second upper portion. A second side plate (82) formed along the central partition (56) of the partition member (54), a rear end of the first side plate (81), and a rear end of the second side plate (82) And an intermediate side plate portion (83) formed over the entire area. That is, the cross-sectional shape of the third upper partition member (80) is formed in a substantially U-shape (U-shape) having an open portion on the front side.

  In the third upper partition member (80), the lower ends of the side plate portions (81, 82) are respectively installed on the installation surfaces (55c, 56d) of the second upper partition member (54), and the intermediate side plate portion (83) The left and right end portions of the second upper partition member (54) are disposed so as to abut on the abutment portions (55b, 56e, 59a). When the third upper partition member (80) is arranged in this way, the space between the right side wall portion (55) and the central partition portion (56) is divided into two spaces (ie, the indoor air supply chamber (19a)). And an outdoor exhaust chamber (19b)). The third upper partition member (80) constitutes an air supply / exhaust partition portion that is detachably attached to the casing (11) so as to partition the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) forward and backward.

  The air supply fan unit (84) includes an air supply fan (85) and an air supply side mounting plate (86) for supporting the air supply fan (85). The air supply fan (85) is a centrifugal multi-blade fan (so-called sirocco fan). The air supply side mounting plate (86) includes a main body portion (86a) to which the motor of the air supply fan (85) is attached, a side plate portion (86b) formed on the left and right sides of the main body portion (86a), and a main body portion. (86a) and an upper plate part (86c) formed on the upper side. Each side plate part (86b) of the supply side mounting plate (86) is installed on each installation surface (55c, 56d) of the second upper partition member (54). Further, the right side plate portion (86b) and the upper plate portion (86c) of the supply side mounting plate (86) are connected to the above-described front panel (14) (see FIG. 1) via a fastening member such as a screw. Fixed.

  The exhaust fan unit (87) includes an exhaust fan (88) and an exhaust side mounting plate (89) for supporting the exhaust fan (88). The exhaust fan (88) is a centrifugal multi-blade fan (so-called sirocco fan). The exhaust side mounting plate (89) includes a main body portion (89a) to which the motor of the exhaust fan (88) is mounted, and side plate portions (89b) formed on the left and right sides of the main body portion (89a). . Each side plate part (89b) of the exhaust side mounting plate (89) is installed on each installation surface (55c, 56d) of the second upper partition member (54). Further, these side plate portions (89b) are fixed to the top plate (13) via the reinforcing rib (75) described above.

<Configuration of refrigerant circuit>
The humidity control apparatus (10) includes a refrigerant circuit (30) to which the compressor (31) and the adsorption heat exchanger (33) described above are connected. The configuration of the refrigerant circuit (30) will be described with reference to FIG.

  The refrigerant circuit (30) is a closed circuit to which refrigerant pipes are connected, and is filled with refrigerant. In the refrigerant circuit (30), the refrigerant circulates to perform a vapor compression refrigeration cycle. A compressor (31), a four-way switching valve (32), a first adsorption heat exchanger (33a), and a second adsorption heat exchanger (33b) are connected to the refrigerant circuit (30).

  The compressor (31) has a variable capacity (operating frequency) by so-called inverter control. That is, the motor of the compressor (31) is configured such that the rotation speed can be adjusted according to the output frequency (operating frequency) of the supplied AC power.

  The four-way switching valve (32) has first to fourth ports and is configured to be able to switch the communication state of these ports. The first port of the four-way switching valve (32) is connected to the discharge pipe (31a) of the compressor (31), and the third port of the four-way switching valve (32) is the suction pipe (31b) of the compressor (31). Connected to. The second port of the four-way switching valve (32) is connected to the gas side end of the first adsorption heat exchanger (33a), and the fourth port of the four-way switching valve (32) is connected to the second adsorption heat exchanger (33b). ) Gas side end. The four-way switching valve (32) communicates the first port and the fourth port to communicate the second port and the third port (first state indicated by the solid line in FIG. 11), the first port and the second port. It is configured to be switchable to a state (second state indicated by a broken line in FIG. 11) in which the two ports are communicated and the third port and the fourth port are communicated. That is, the four-way switching valve (32) includes a flow path in which the refrigerant radiates heat in the second adsorption heat exchanger (33b) and evaporates in the first adsorption heat exchanger (33a), and the first adsorption heat exchanger ( A refrigerant flow path switching mechanism for switching the flow path of the refrigerant circuit (30) to the flow path where the refrigerant radiates heat in 33a) and evaporates in the second adsorption heat exchanger (33b) is configured.

  The refrigerant circuit (30) is provided with a one-way circuit (36) that keeps the refrigerant flow in one direction even when the state of the four-way switching valve (32) is switched. The one-way circuit (36) includes a bridge circuit (36a) in which four check valves (CV-1, CV-2, CV-3, CV-4) are connected in a bridge shape, and a bridge circuit (36a ), A main circuit (36b) and a reheat circuit (36c) connected in parallel are provided.

  Each check valve (CV-1, CV-2, CV-3, CV-4) of the bridge circuit (36a) allows the refrigerant to flow in the direction of the arrow in FIG. The flow of is prohibited. In the bridge circuit (36a), the liquid side end of the first adsorption heat exchanger (33a) is connected between the first check valve (C1-1) and the second check valve (CV-2), The liquid side end of the second adsorption heat exchanger (33b) is connected between the third check valve (CV-3) and the fourth check valve (CV-4). The junction of the first check valve (CV-1) and the third check valve (CV-3), and the flow divider of the second check valve (CV-2) and the fourth check valve (CV-4) The main circuit (36b) and the reheat circuit (36c) are connected in parallel with each other. A main expansion valve (37) is connected to the main circuit (36b). The reheat circuit (36c) is connected to the reheat heat exchanger (35) on the upstream side and to the reheat side expansion valve (38) on the downstream side. The main expansion valve (37) and the reheat side expansion valve (38) are electrically operated flow rate control valves whose opening degree is variable, and are constituted by, for example, electronic expansion valves.

<Control unit and sensor>
As shown in FIG. 11, the humidity control apparatus (10) includes a controller (100) and various sensors. The controller (100) adjusts the operating capacity of the compressor (31) and the opening of each expansion valve (37, 38) according to the operating conditions and the detection values of the sensors. Further, the controller (100) adjusts the open / close state of each damper (D1 to D8) and the operating air volume of each fan (85, 88) according to the operating conditions.

  As schematically shown in FIG. 3B, the humidity control apparatus (10) of the present embodiment includes an inside air humidity sensor (111), an outside air humidity sensor (113), and a first outside air temperature sensor (114). And a second outside temperature sensor (115).

  The room air humidity sensor (111) is disposed in the upper room air flow path (69). The room air humidity sensor (111) detects the humidity (relative humidity) of the room air (RA) taken into the room air suction chamber (19d).

  The outside air humidity sensor (113) and the first outside air temperature sensor (114) are disposed between the filter (26, 27) and the reheat heat exchanger (35) in the lower outside air flow path (63a). The outdoor air humidity sensor (113) detects the humidity (relative humidity) of the outdoor air (OA) upstream of the reheat heat exchanger (35), and the first outdoor air temperature sensor (114) is the reheat heat exchanger (35). ) Detect the temperature of the outdoor air (OA) upstream. The second outside air temperature sensor (115) is disposed on the downstream side of the reheat heat exchanger (35) in the lower outside air passage (63a). The second outside air temperature sensor (115) detects the temperature of the outdoor air (OA) on the downstream side of the reheat heat exchanger (35).

  In the controller (100) of this embodiment, based on the detection values of these sensors (111, 113, 114, 115), the required humidity control capacity of the humidity control device (10) (dehumidification load during dehumidification operation or humidification load during humidification operation) Is required. The controller (100) controls the operating capacity of the compressor (31) (that is, the refrigerant circulation amount of the refrigerant circuit (30)) so as to satisfy this humidity control capability.

-Driving action-
Next, the operation of the humidity control apparatus (10) will be described in order with reference to the drawings. The humidity control apparatus (10) is executed by switching between a dehumidifying operation for dehumidifying the room and a humidifying operation for humidifying the room.

<Dehumidifying operation>
The dehumidifying operation is performed under conditions where the outdoor temperature and humidity are relatively high in summer and the like. In this dehumidifying operation, outdoor air (OA) is dehumidified, and the dehumidified air is supplied indoors as supply air (SA). At the same time, in the dehumidifying operation, the room air (RA) is discharged to the outside as exhaust air (EA). In the dehumidifying operation, the first operation and the second operation are alternately performed at predetermined intervals, and the room is continuously dehumidified.

  In the first operation of the dehumidifying operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the first state, and the reheat side expansion valve (38) is almost fully closed. The expansion valve (37) is opened at a predetermined opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) dissipates heat in the second adsorption heat exchanger (33b), passes through the bridge circuit (36a), and passes through the main circuit (36b). Flowing. In the main circuit (36b), the refrigerant is decompressed by the main expansion valve (37). The refrigerant decompressed by the main expansion valve (37) passes through the bridge circuit (36a), evaporates in the first adsorption heat exchanger (33a), and is sucked into the compressor (31).

  In the second operation of the dehumidifying operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the second state, and the reheat side expansion valve (38) is almost fully closed. The expansion valve (37) is opened at a predetermined opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) dissipates heat in the first adsorption heat exchanger (33a), passes through the bridge circuit (36a), and passes through the main circuit (36b). Flowing. In the main circuit (36b), the refrigerant is decompressed by the main expansion valve (37). The refrigerant decompressed by the main expansion valve (37) passes through the bridge circuit (36a), evaporates in the second adsorption heat exchanger (33b), and is sucked into the compressor (31).

  As described above, in the dehumidifying operation of the humidity control apparatus (10), in principle, no refrigerant is supplied to the reheat circuit (36c). That is, in the dehumidifying operation, the reheat heat exchanger (35) is stopped.

  In the first operation of the dehumidifying operation, as shown in FIGS. 12 and 13, the first damper (D1), the fourth damper (D4), the sixth damper (D6), and the seventh damper (D7) are opened. The second damper (D2), the third damper (D3), the fifth damper (D5), and the eighth damper (D8) are closed, and the air supply fan (85) and the exhaust fan (88) are operated. . 12 to 15, the hatched damper represents a closed state, and the white damper represents an open state. In FIGS. 12 to 15, white arrows represent the air (outdoor air (OA) or supply air (SA)) supplied from the outside to the room, and the black arrows are discharged from the room to the outside. Air (room air (RA) or exhaust air (EA)).

  In the first operation of the dehumidifying operation, the outdoor air (OA) taken into the outside air suction chamber (19c) via the duct flows in the duct inner passage (71) and the outside air inflow passage (61) in this order, It flows into the outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the dehumidifying operation, the reheat heat exchanger (35) is stopped as described above. For this reason, air is not heated in the reheat heat exchanger (35).

  The air that has passed through the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the first damper (D1) in this order, and then passes through the first adsorption heat exchanger (33a). To do. In the first adsorption heat exchanger (33a) in the evaporator state, water vapor in the air is adsorbed by the adsorbent. The heat of adsorption generated at this time is used for the heat of evaporation of the refrigerant. The air adsorbed and dehumidified by the first adsorption heat exchanger (33a) flows through the seventh damper (D7), the upper air supply channel (70), and the indoor air supply chamber (19a) in this order, and passes through the duct. Supplied to the indoor space as supply air (SA).

  In the first operation of the dehumidifying operation, the room air (RA) taken into the room air suction chamber (19d) via the indoor duct flows in order through the upper room air flow path (69) and the sixth damper (D6). And passing through the second adsorption heat exchanger (33b). In the second adsorption heat exchanger (33b) in the state of a radiator, water vapor is desorbed from the adsorbent into the air, and the adsorbent is regenerated. The air used for regeneration of the adsorbent of the second adsorption heat exchanger (33b) is the fourth damper (D4), the intermediate exhaust passage (65), the exhaust communication passage (68), the outdoor exhaust chamber (19b) In order, and is discharged as exhaust air (EA) to the outdoor space via the duct.

  In the second operation of the dehumidifying operation, as shown in FIGS. 14 and 15, the second damper (D2), the third damper (D3), the fifth damper (D5), and the eighth damper (D8) are opened. The first damper (D1), the fourth damper (D4), the sixth damper (D6), and the seventh damper (D7) are closed, and the air supply fan (85) and the exhaust fan (88) are operated. .

  In the second operation of the dehumidifying operation, the outdoor air (OA) taken into the outside air suction chamber (19c) via the duct flows in the duct inner passage (71) and the outside air inflow passage (61) in this order, It flows into the outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the dehumidifying operation, the reheat heat exchanger (35) is stopped as described above. For this reason, air is not heated in the reheat heat exchanger (35).

  The air that has passed through the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the second damper (D2) in this order, and then passes through the second adsorption heat exchanger (33b). To do. In the second adsorption heat exchanger (33b) in the evaporator state, water vapor in the air is adsorbed by the adsorbent. The heat of adsorption generated at this time is used for the heat of evaporation of the refrigerant. The air adsorbed and dehumidified by the second adsorption heat exchanger (33b) flows through the eighth damper (D8), the upper air supply channel (70), and the indoor air supply chamber (19a) in this order, via the duct. Supplied to the indoor space as supply air (SA).

  In the second operation of the dehumidifying operation, the room air (RA) taken into the room air suction chamber (19d) via the indoor duct flows in order through the upper room air flow path (69) and the fifth damper (D5). And passes through the first adsorption heat exchanger (33a). In the first adsorption heat exchanger (33a) in the state of a radiator, water vapor is desorbed from the adsorbent into the air, and the adsorbent is regenerated. The air used for the regeneration of the adsorbent of the first adsorption heat exchanger (33a) passes through the third damper (D3), the intermediate exhaust passage (65), the exhaust communication passage (68), the outdoor exhaust chamber. (19b) flows in order and is discharged as exhaust air (EA) to the outdoor space via the duct.

<Humidification operation>
The humidification operation is performed under conditions where the outdoor temperature and humidity are relatively low in winter and the like. In this humidification operation, outdoor air (OA) is humidified, and the humidified air is supplied indoors as supply air (SA). At the same time, in the humidifying operation, the room air (RA) is discharged to the outside as exhaust air (EA). In this humidification operation, the first operation and the second operation are alternately performed at predetermined intervals, and the room is continuously humidified.

  In the first operation of the humidifying operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the second state, the main expansion valve (37) is closed, and the reheat side expansion valve (38 ) Is opened at a predetermined opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) dissipates heat in the first adsorption heat exchanger (33a), passes through the bridge circuit (36a), and reheats the circuit (36c). Flowing. In the reheat circuit (36c), the high-pressure refrigerant in a gas-liquid two-phase state flows through the reheat heat exchanger (35), and the refrigerant radiates heat to the air (outdoor air (OA)). The refrigerant radiated by the reheat heat exchanger (35) is decompressed by the reheat side expansion valve (38). The refrigerant decompressed by the reheat side expansion valve (38) passes through the bridge circuit (36a), evaporates in the second adsorption heat exchanger (33b), and is sucked into the compressor (31).

  In the second operation of the humidifying operation, in the refrigerant circuit (30) shown in FIG. 11, the four-way switching valve (32) is set to the first state, the main expansion valve (37) is closed, and the reheat side expansion valve (38 ) Is opened at a predetermined opening. When the compressor (31) is operated, the refrigerant compressed by the compressor (31) dissipates heat in the second adsorption heat exchanger (33b), passes through the bridge circuit (36a), and reheats the circuit (36c). Flowing. In the reheat circuit (36c), the high-pressure refrigerant in a gas-liquid two-phase state flows through the reheat heat exchanger (35), and the refrigerant radiates heat to the air (outdoor air (OA)). The refrigerant radiated by the reheat heat exchanger (35) is decompressed by the reheat side expansion valve (38). The refrigerant decompressed by the reheat side expansion valve (38) passes through the bridge circuit (36a), evaporates by the first adsorption heat exchanger (33a), and is sucked into the compressor (31).

  As described above, in the humidifying operation of the humidity control apparatus (10), the refrigerant is supplied to the reheat circuit (36c), and the reheat heat exchanger (35) is operated. The heating capacity of the reheat heat exchanger (35) is appropriately adjusted according to the opening degree of the reheat side expansion valve (38). In this humidification operation, if the temperature of the outdoor air (OA) becomes higher than the predetermined temperature, the reheat side expansion valve (38) is almost fully closed, and the main expansion valve (37) is opened at a predetermined opening degree. Is done. Thereby, air can be humidified by each adsorption heat exchanger (33a, 33b), stopping a reheat heat exchanger (35).

  In the first operation of the humidifying operation, as shown in FIGS. 12 and 13, the first damper (D1), the fourth damper (D4), the sixth damper (D6), and the seventh damper (D7) are opened. The second damper (D2), the third damper (D3), the fifth damper (D5), and the eighth damper (D8) are closed, and the air supply fan (85) and the exhaust fan (88) are operated. .

  In the first operation of the humidifying operation, the outdoor air (OA) taken into the outside air suction chamber (19c) via the duct flows in the duct inner passage (71) and the outside air inflow passage (61) in this order. It flows into the outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the humidification operation, a refrigerant is appropriately supplied to the reheat heat exchanger (35), and the outdoor air (OA) is heated by the reheat heat exchanger (35).

  The air heated by the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the first damper (D1) in this order, and passes through the first adsorption heat exchanger (33a). pass. In the first adsorption heat exchanger (33a) in the state of a radiator, water vapor is desorbed from the adsorbent into the air, and the air is humidified. The air humidified by the first adsorption heat exchanger (33a) flows in order through the seventh damper (D7), the upper air supply channel (70), and the indoor air supply chamber (19a), and enters the indoor space via the duct. Supplied as supply air (SA).

  In the first operation of the humidification operation, the room air (RA) taken into the room air suction chamber (19d) via the indoor duct flows in order through the upper room air flow path (69) and the sixth damper (D6). And passing through the second adsorption heat exchanger (33b). In the second adsorption heat exchanger (33b) in the evaporator state, water vapor in the air is adsorbed by the adsorbent, and moisture is given to the adsorbent. The air given moisture to the adsorbent of the second adsorption heat exchanger (33b) passes through the fourth damper (D4), the intermediate exhaust passage (65), the exhaust communication passage (68), and the outdoor exhaust chamber (19b). It flows in order and is discharged as exhaust air (EA) to the outdoor space via the duct.

  In the second operation of the humidifying operation, as shown in FIGS. 14 and 15, the second damper (D2), the third damper (D3), the fifth damper (D5), and the eighth damper (D8) are opened. The first damper (D1), the fourth damper (D4), the sixth damper (D6), and the seventh damper (D7) are closed, and the air supply fan (85) and the exhaust fan (88) are operated. .

  In the second operation of the humidifying operation, the outdoor air (OA) taken into the outside air suction chamber (19c) via the duct flows in the duct inner passage (71) and the outside air inflow passage (61) in this order, It flows into the outside air flow path (63a). The air flows through the insect filter (26) and the pleat filter (27) in order, and then passes through the reheat heat exchanger (35). In the humidification operation, a refrigerant is appropriately supplied to the reheat heat exchanger (35), and the outdoor air (OA) is heated by the reheat heat exchanger (35).

  The air heated by the reheat heat exchanger (35) flows through the upper outside air passage (63b), the intermediate outside air passage (64), and the second damper (D2) in this order, and passes through the second adsorption heat exchanger (33b). pass. In the second adsorption heat exchanger (33b) in the state of a radiator, water vapor is desorbed from the adsorbent into the air, and the air is humidified. The air humidified by the second adsorption heat exchanger (33b) flows in order through the eighth damper (D8), the upper air supply channel (70), and the indoor air supply chamber (19a), and enters the indoor space via the duct. Supplied as supply air (SA).

  In the second operation of the humidifying operation, the room air (RA) taken into the room air suction chamber (19d) via the indoor duct flows in order through the upper room air flow path (69) and the fifth damper (D5). And passes through the first adsorption heat exchanger (33a). In the first adsorption heat exchanger (33a) in the evaporator state, water vapor in the air is adsorbed by the adsorbent, and moisture is given to the adsorbent. The air that has given moisture to the adsorbent of the first adsorption heat exchanger (33a) passes through the third damper (D3), the intermediate exhaust passage (65), the exhaust communication passage (68), and the outdoor exhaust chamber (19b). It flows in order and is discharged as exhaust air (EA) to the outdoor space via the duct.

<Fan maintenance>
In the humidity control apparatus (10) of the present embodiment, maintenance (repair, replacement, etc.) of the air supply fan (85) and the exhaust fan (88) is performed as follows.

  First, in order to remove the upper panel (14b) of the front panel (14), the fastening of the outer edge portion of the upper panel (14b) is released. When the fastening of these screws is released, the fastening of the upper panel (14b) and the air supply fan unit (84) is also released. For this reason, as shown in FIG. 16, when the upper panel (14b) is removed, the air supply fan unit (84) exposed to the front side is slidable forward. The air supply fan (85) is pulled forward together with the air supply side mounting plate (86) by sliding the side plate portion (86b) along the installation surface (55c, 56d).

  Further, when the maintenance of the exhaust fan (88) is performed, the third upper partition member (80) exposed to the front side is pulled forward with the air supply fan (85) taken out. The third upper partition member (80) is pulled forward by sliding the lower ends of the first side plate portion (81) and the second side plate portion (82) along the installation surface (55c, 56d) (FIG. 17). See).

  Next, the fastening between the side plate portion (89b) of the exhaust fan unit (87) and the reinforcing rib (75) is released. The exhaust fan (88) is pulled forward along with the exhaust side mounting plate (89) by sliding the side plate portion (89b) along the installation surface (55c, 56d) (see FIG. 18).

  After the maintenance is completed, the exhaust fan unit (87), the third upper partition member (80), and the air supply fan unit (84) are sequentially placed inside the casing (11) in the reverse order of the above-described removal operation. To be stolen.

<Air leakage in the upper chamber>
In the humidity control apparatus (10) of the present embodiment, the outside air suction chamber (19c) and the inside air suction chamber (19d) adjacent to the front and rear, the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) adjacent to the front and rear However, it is divided into right and left by the central partition part (56) of a 2nd upper division member (54). The central partition (56) is molded integrally with the right side wall (55) and the rear side wall (57), and only the central partition (56) is removed outside for maintenance. Absent.

  When the central partition (56) is structured to be removable from other members, a space partitioned on the left side of the central partition (56) (that is, the outside air suction chamber (19c) and the inside air suction chamber (19d)), the center partition There is a possibility that air leaks between the space partitioned on the right side of the section (56) (that is, the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b)).

  More specifically, the internal pressure of the outside air suction chamber (19c) and the inside air suction chamber (19d) is smaller than the inside pressure of the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b). When the air supply fan (85) and exhaust fan (88) are in operation, the pressure in the indoor air supply chamber (19a) and outdoor exhaust chamber (19b) is affected by the pressure loss in the upstream air flow path. This is because it is lower than the outside air suction chamber (19c) and the inside air suction chamber (19d). For this reason, if the structure is such that the central partition (56) can be removed, outdoor air (OA) taken into the outdoor air suction chamber (19c) leaks into the outdoor exhaust chamber (19b) or takes into the indoor air suction chamber (19d). The indoor air (RA) thus leaked may leak into the indoor air supply chamber (19a), leading to a decrease in humidity control capacity and a decrease in ventilation capacity of the humidity control apparatus (10).

  In addition, the central partition (56) has a space between the left side (the outside air suction chamber (19c) and the inside air suction chamber (19d)) and the right side space (the indoor supply chamber (19a)) due to the difference in internal pressure as described above. External force acts in the direction toward the outdoor exhaust chamber (19b). For this reason, even if an attempt is made to prevent the leakage of the air by providing a sealing material around the central partition (56), there is a possibility that stress concentrates on the sealing material and the sealing material deteriorates early.

  On the other hand, in the humidity control apparatus (10) of this embodiment, as shown in FIG. 17 etc., it is not the structure which removes a center partition part (56) and performs a maintenance. For this reason, air is caused by the pressure difference between the left side space (the outside air suction chamber (19c) and the inside air suction chamber (19d)) and the right side space (the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b)). Can be prevented, and the seal structure around the central partition (56) can be simplified.

  On the other hand, in the humidity control apparatus (10) of this embodiment, the 3rd upper division member (80) which divides an indoor air supply chamber (19a) and an outdoor exhaust chamber (19b) is removed, and an air supply fan (85) And exhaust fan (88) maintenance. The indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) are arranged on the downstream side of each air flow path, and the air flow of the air supply fan (85) and the exhaust fan (88) is basically the same. Therefore, the difference in internal pressure between the two chambers (19a, 19b) is not so large. For this reason, air leakage between the two chambers (19a, 19b) can be sufficiently prevented without complicating the seal structure around the third upper partition member (80).

<Damper maintenance>
In the humidity control apparatus (10) of the present embodiment, maintenance (repair or replacement) of each damper (45a, 45b, 48a, 48b) is performed as follows.

  When maintaining the outside air damper partition plate (45a) and the exhaust damper partition plate (45b), the intermediate panel (14c) is removed. As shown in FIG. 19, in this state, when the outside air damper partition plate (45a) is pulled out to the front side, the upper and lower ends of the outside air damper partition plate (45a) are guided to the concave grooves (43c, 44a), respectively. The first damper (D1) and the second damper (D2) move to the front side simultaneously. Similarly, when the exhaust damper partition plate (45b) is pulled out to the front side, the upper and lower ends of the exhaust damper partition plate (45b) are guided by the concave grooves (43c, 44a), respectively, and the third damper (D3) and the fourth damper The damper (D4) moves to the near side at the same time.

  A spacer member (24) is interposed between the lower partition member (41) and the first intermediate partition member (43). The load of the adsorption heat exchanger (33) is received by the frames (21, 22, 23) on the upper side of the outside air damper partition plate (45a) and the exhaust damper partition plate (45b). For this reason, the vertical clearance between the lower partition member (41) and the first intermediate partition member (43) can be sufficiently secured. Therefore, the outside air damper partition plate (45a) and the exhaust damper partition plate (45b) can be smoothly moved forward and backward.

  When maintaining the inside air damper partition plate (48a) and the supply air damper partition plate (48b), the upper panel (14b) is removed. As shown in FIG. 20, in this state, when the inside air damper partition plate (48a) is pulled out to the front side, the inside air damper partition plate (48a) is guided to the wide groove (47a), and the fifth damper (D5) and the sixth The damper (D6) moves to the near side at the same time. Similarly, when the supply damper partition plate (48b) is pulled out to the front side, the supply damper partition plate (48b) is guided to the wide groove (47a), and the seventh damper (D7) and the eighth damper (D8) are connected. Move to the near side at the same time.

  Since the inside air damper partition plate (48a) and the supply air damper partition plate (48b) are installed horizontally inside the wide groove (47a), the damper partition plates (48a, 48b) are moved forward and backward. Sliding resistance can be reduced. Therefore, the inside air damper partition plate (48a) and the air supply damper partition plate (48b) can be smoothly advanced and retracted.

-Effect of the embodiment-
According to the embodiment, the air supply fan (85) and the exhaust fan (88) can be maintained by removing the third upper partition member (80) after removing the front panel (14). That is, in the humidity control apparatus of the conventional example, the two partition portions are removed from the casing for maintenance, but in the present invention, only one third upper partition member (80) needs to be taken out. Therefore, it is possible to reduce the man-hours and time for maintenance related to the fans (85, 88).

  There is almost no differential pressure between the space (that is, the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b)) sandwiching the intermediate side plate (83) of the third upper partition member (80). For this reason, since air leakage in the gap around the third upper partition member (80) is also reduced, the seal structure around the third upper partition member (80) can be omitted or simplified. Further, when the differential pressure between the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) is small, the third upper partition member (80) is hardly attracted to the lower pressure chamber. Therefore, deterioration of the sealing material between the third upper partition member (80) and each contact portion (55b, 56e, 59a) can be suppressed, the sealing structure is simplified, and the maintenance frequency of the sealing material is reduced. be able to.

  Moreover, in the humidity control apparatus (10), the outdoor air suction chamber (19c) and the outdoor exhaust chamber (19b) are integrated near the rear of the casing (11). For this reason, the outside duct communicating with the outside can be easily connected to the outside air suction chamber (19c) and the outside exhaust chamber (19b), and the space required for arranging the duct can be reduced.

  In the humidity control device (10), each damper partition plate (45a, 45b, 48a, 48b) is arranged below the central partition (56), and this damper partition plate (45a, 45b, 48a, 48b) Is extended in the front-rear direction along the central partition (56). Therefore, with the front panel (14) removed, each damper partition plate (45a, 45b, 48a, 48b) does not interfere with the central partition (56), and each damper partition plate (45a, 45b, 48a, 48b) can be pulled out to the near side. Therefore, maintenance of each damper (D1-D8) can be performed easily.

<< Other Embodiments >>
In the upper space (S3) of the above embodiment, the front indoor air supply chamber (19a) and the rear outdoor exhaust chamber (19b) are partitioned by the intermediate side plate (83) of the third upper partition member (80). I have to. However, the outdoor exhaust chamber (19b) may be defined on the front side of the intermediate side plate portion (83), and the indoor air supply chamber (19a) may be defined on the rear side of the intermediate side plate portion (83). In this case, the front panel (14), the exhaust fan (88), the third upper partition member (80), and the air supply fan (85) are pulled out in this order, and the fans (88,85) Maintenance can be performed.

  Further, in the upper space (S3), the outside air suction chamber (19c) may be partitioned on the front side, and the inside air suction chamber (19d) may be partitioned on the rear side.

  As described above, the present invention is useful for a humidity control apparatus that adjusts the humidity of an air using an adsorption heat exchanger.

11 Casing
19a Indoor air supply room
19b Outdoor exhaust chamber
19c Outside air suction chamber
19d Inside air suction chamber
33 Adsorption heat exchanger
45 Lower damper divider (damper divider)
48 Upper damper divider (damper divider)
56 Central partition (main partition)
66 Humidity control room
80 Third upper compartment (supply / exhaust partition)
85 Air supply fan
88 Exhaust fan
D1-D8 damper

Claims (3)

An outside air suction chamber (19c), an inside air suction chamber (19d), an indoor air supply chamber (19a), and an outdoor exhaust chamber (19b) are partitioned inside, and the lower side of each chamber (19a, 19b, 19c, 19d) A casing (11) in which a humidity control chamber (66) capable of communicating with the chambers (19a, 19b, 19c, 19d) is formed, and the indoor air supply chamber (19a) is installed to convey air into the room An air supply fan (85), an exhaust fan (88) installed in the outdoor exhaust chamber (19b) and carrying air to the outside, and an adsorption heat exchange installed in the humidity control chamber (66) to dehumidify or humidify the air A humidity control device comprising a device (33),
The casing (11) is arranged so that the outside air suction chamber (19c) and the inside air suction chamber (19d) arranged in the front-rear direction are separated from the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) arranged in the front-rear direction. The main partition (56) extending in the front-rear direction and the interior of the front chamber (19a) of the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) can be exposed to the outside of the casing (11). A front panel (14) that is detachably attached to the front surface;
An air supply / exhaust partition (80) detachably attached to the casing (11) so as to partition the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) forward and backward;
A rear side wall (57) formed along the inner surface of the rear panel (15) of the casing (11) ,
The main partition (56) is formed integrally with the rear side wall (57), and is configured so that only the main partition (56) cannot be removed independently.
The air supply / exhaust partition (80) is arranged at a position to partition the indoor air supply chamber (19a) and the outdoor exhaust chamber (19b) forward and backward when the air supply fan (85) and the exhaust fan (88) are in operation. The humidity control apparatus is configured to be capable of being pulled out forward of the casing (11) during maintenance of the fans (85, 88) . In claim 1,
In the casing (11),
The outside air suction chamber (19c) is arranged behind the inside air suction chamber (19d),
The humidity control apparatus, wherein the outdoor exhaust chamber (19b) is disposed behind the indoor air supply chamber (19a). In claim 1 or 2,
Inside the casing (11), the outside air suction chamber (19c), the inside air suction chamber (19d), the indoor air supply chamber (19a), and the outdoor exhaust chamber (19b) (19a, 19b) , 19c, 19d) and a damper partition plate (45, 48) having a plurality of dampers (D1-D8) that intermittently connect the humidity control chamber (66),
The damper partition plate (45, 48) extends in a direction along the main partition portion (56) and is formed below the main partition portion (56). A humidity control device that can be attached and removed freely.

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