JP5082775B2 - Ventilation equipment - Google Patents

Description

    The present invention relates to a ventilating device that ventilates a room, and particularly relates to a countermeasure for controlling a fan speed.

    2. Description of the Related Art Conventionally, a humidity control device that exhausts indoor air and simultaneously dehumidifies outdoor air and supplies the indoor air to the ventilator has been known. Patent Document 1 discloses a humidity control apparatus including an adsorption heat exchanger having an adsorbent supported on its surface. This humidity control apparatus performs a so-called batch operation.

    Specifically, the humidity control device disclosed in Patent Document 1 is provided with a refrigerant circuit including two adsorption heat exchangers. The refrigerant circuit includes a first operation in which the first adsorption heat exchanger serves as a condenser and the second adsorption heat exchanger serves as an evaporator, and the second adsorption heat exchanger serves as a condenser. The second operation in which the adsorption heat exchanger becomes an evaporator is alternately performed at predetermined time intervals. In the adsorption heat exchanger operating as an evaporator, moisture in the air is adsorbed by the adsorbent. In an adsorption heat exchanger that operates as a condenser, moisture is desorbed from the adsorbent and applied to the air.

The humidity control device disclosed in Patent Document 1 supplies one of the air that has passed through each adsorption heat exchanger to the room and discharges the other to the outside. In the humidity control apparatus during the dehumidifying operation, outdoor air that has passed through one of the first and second adsorption heat exchangers that operates as an evaporator is supplied to the room, and the indoor air that has passed through the one that operates as a condenser is It is discharged outside the room. Further, in the humidity control apparatus during the humidifying operation, the indoor air that has passed through the first and second adsorption heat exchangers that operate as an evaporator is discharged to the outside and the outdoor that has passed through the one that operates as a condenser. Air is supplied into the room.
JP 2006-078108 A

    As described above, the conventional humidity control apparatus is provided with two fans to perform intake and exhaust. At that time, it is conceivable to control the supply air volume and the exhaust air volume to constant amounts.

    However, the humidity control apparatus does not consider any measures for fan control, and a new control measure has been desired. That is, in the humidity control apparatus, since a plurality of air passages are formed and the air resistance of each air passage is different, it is necessary to control the rotational speed of the fan for each air passage. Thus, the humidity control apparatus has a problem of how to control the fan.

    This invention is made | formed in view of such a point, and it aims at providing the new fan control countermeasure which determines a fan rotation speed for every air passage.

The first invention includes within Quai pacing (11), while the humidity means adsorbs leaving water (50) and fan (25, 26) is accommodated in the casing (11), outdoor and indoor And a ventilator having at least a plurality of air passages through which humidity-controlled air flows through the humidity control means (50) and the fans (25, 26).

    In the first aspect of the present invention, the fan rotation speed of the fan (25, 26) is controlled to be 1 so that the air volume of at least one of the plurality of air paths becomes a predetermined target air volume. The rotation speed control means (61) for determining the fan rotation speed for the air passage of the other air passage, and the air volume of the other air passage based on the fan rotation speed for one air passage determined by the rotation speed control means (61) Rotational speed determination means (62) for determining the rotational speed of the fan with respect to the other air passage so as to obtain an air volume.

The upper Kichoshime means (50), the first adsorption heat exchanger adsorbent surface is supported (51) second adsorption heat exchanger (52) and a, the second adsorption heat exchanger A first operation in which moisture is adsorbed in (52) and moisture is desorbed in the first adsorption heat exchanger (51); moisture is adsorbed in the first adsorption heat exchanger (51); and a second adsorption heat exchanger The second operation of desorbing moisture in (52) is configured to be repeated alternately.

The plurality of air passages include an air supply passage (34, ..., 36) for supplying humidity-conditioned air that has passed through the first adsorption heat exchanger (51) or the second adsorption heat exchanger (52) to the room, Only the exhaust passage (32,..., 35) that discharges the exhaust air that has passed through the second adsorption heat exchanger (52) or the first adsorption heat exchanger (51) to the outside of the room and the fan (25, 26). And ventilation passages (81, 82,...) Through which ventilation air passes.

Further, the rotation speed control means (61) determines the fan rotation speed for the ventilation passage (81, 82,...).

Further, according to a second invention, in the first invention, the rotation speed control means (61) integrates the power consumption of the fans (25, 26) until a predetermined time elapses, and the integrated value of the power consumption is The fan speed is determined so that the required power value of the target air volume set in advance is obtained.

Further, according to a third aspect , in the first aspect , the rotational speed determining means (62) is configured such that the fan rotational speed with respect to the ventilation passage (81, 82,...), The air supply passage (34,. The relationship with the fan speed for the exhaust passage (32, ..., 35) is stored in advance, and the fan speed for the air supply passage (34, ..., 36) and the exhaust passage (32, ..., 35) is determined based on the relationship. decide.

In a fourth aspect based on the first aspect , the rotational speed control means (61) starts the determining operation when a predetermined instruction is input from the operation stop state.

Therefore, in the first aspect of the invention, first, the fan rotation speed for the one air passage is determined so that the air amount of the one air passage becomes a predetermined target air amount. Thereafter, the fan rotation speed of the other air passage is determined based on the fan rotation speed for the one air passage.

Specifically, the supply passage (34, ..., 36) in Ke pacing (11) and the exhaust passage (32, ..., 35) and ventilation passages (81, 82, ...) and since it is formed, the rotation The number control means (61) determines the number of fan rotations for the ventilation passage (81, 82,...). Thereafter, in the third invention, the rotational speed determining means (62) includes the ventilation passage (81, 82,...), The supply passage (34,..., 36) and the exhaust passage (32,..., 35). Based on the relationship, the fan rotational speed for the air supply passage (34,..., 36) and the exhaust passage (32,..., 35) is determined.

In the second aspect of the invention, the rotation speed control means (61) determines the fan rotation speed so that the integrated value of the power consumption of the fans (25, 26) becomes the required power value of the target air volume.

In the fourth aspect of the invention, the rotational speed control means (61) starts the determining operation when a predetermined instruction is input from the operation stop state.

    According to the present invention, after determining the fan rotation speed of one air passage, the fan rotation speed of the other air passage is determined based on the fan rotation speed of this air passage. Therefore, it is possible to determine the fan rotation speed in consideration of the above, so that it is possible to flow the optimum air volume during each operation. As a result, each humidity control operation can improve comfort.

    Further, since the fan rotation speed is determined in consideration of the air resistance of each air passage, the accurate fan rotation speed can be determined.

In particular, the supply air passage (34, ..., 36) and the exhaust passage (32, ..., 35), then a ventilation passage (81, 82, ...), it is possible to determine the fan rotation speed suitable for each passage Therefore, it is possible to improve the comfort of humidity control without fail.

Further, since the upper Symbol rotational speed control means (61) determines the fan rotation speed for the ventilation passage (81, 82, ...), it is possible to determine the fan rotation speed easily. In other words, because the ventilation passage (81, 82,...) Is used at the time of initial setting because of odor or the like, the other air supply passages are determined by determining the fan speed from this ventilation passage (81, 82,...). The fan speed such as (34,..., 36) can be quickly determined.

Further, according to the second invention, the rotational speed control means (61) determines the rotational speed of the fan based on the power consumption of the exhaust fan (25) and the supply fan (26), thereby eliminating the influence of temperature. Thus, an accurate fan rotation speed can be determined.

Further, according to the third aspect of the invention, the rotational speed determining means (62) includes the fan rotational speed of the ventilation passage (81, 82,...), The supply passage (34,..., 36) and the exhaust passage (32,. , 35) is determined based on the relationship with the fan speed of the air supply passage (34,..., 36) and the exhaust passage (32,..., 35). 36) and the fan speed of the exhaust passages (32,..., 35) can be determined.

According to the fourth aspect of the invention, since the rotational speed control means (61) starts the determining operation in accordance with a predetermined instruction, the fan rotational speed is surely detected when the ventilation resistance is changed due to filter replacement or the like. Can be determined accurately.

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

    The humidity control device (10) of the present embodiment is a ventilation device that performs indoor ventilation along with indoor humidity control, and adjusts the humidity of the taken outdoor air (OA) to the indoors, The taken indoor air (RA) is exhausted outside the room.

<Overall configuration of humidity control device>
The humidity control apparatus (10) will be described with reference to FIGS. 1 and 2 as appropriate. Note that “upper”, “lower”, “left”, “right”, “front”, “rear”, “front”, and “rear” used in the description here are the humidity control device (10) from the front side unless otherwise stated. It means the direction when viewed.

    The humidity control device (10) includes a casing (11). A refrigerant circuit (50) is accommodated in the casing (11). Connected to the refrigerant circuit (50) are a first adsorption heat exchanger (51), a second adsorption heat exchanger (52), a compressor (53), a four-way switching valve (54), and an electric expansion valve (55). Has been. Details of the refrigerant circuit (50) will be described later.

    The casing (11) is formed in a rectangular parallelepiped shape that is slightly flat and relatively low in height. In the casing (11) shown in FIG. 1, the left front side (ie, front) is the front panel (12), and the right back side (ie, back) is the back panel (13). Is the first side panel (14), and the left back side is the second side panel (15).

    The casing (11) is formed with an outside air inlet (24), an inside air inlet (23), an air supply port (22), and an exhaust port (21). The outside air inlet (24) and the inside air inlet (23) are open to the back panel (13). The outside air inlet (24) is disposed in the lower part of the back panel (13). The inside air suction port (23) is arranged in the upper part of the back panel (13). The air supply port (22) is disposed near the end of the first side panel (14) on the front panel (12) side. The exhaust port (21) is disposed near the end of the second side panel (15) on the front panel (12) side.

    In the internal space of the casing (11), an upstream partition plate (71), a downstream partition plate (72), a central partition plate (73), a first partition plate (74), and a second partition plate (75) are provided. Is provided. These partition plates (71 to 75) are all erected on the bottom plate of the casing (11), and divide the internal space of the casing (11) from the bottom plate of the casing (11) to the top plate.

    The upstream divider plate (71) and the downstream divider plate (72) are parallel to the front panel portion (12) and the rear panel portion (13), and are spaced at a predetermined interval in the longitudinal direction of the casing (11). Has been placed. The upstream divider plate (71) is disposed closer to the rear panel portion (13). The downstream partition plate (72) is disposed closer to the front panel portion (12).

    The first partition plate (74) and the second partition plate (75) are installed in a posture parallel to the first side panel portion (14) and the second side panel portion (15). The first partition plate (74) is spaced a predetermined distance from the first side panel (14) so as to close the space between the upstream partition plate (71) and the downstream partition plate (72) from the right side. Has been placed. The second partition plate (75) is spaced from the second side panel (15) by a predetermined distance so as to close the space between the upstream partition plate (71) and the downstream partition plate (72) from the left side. Has been placed.

    The central partition plate (73) is disposed between the upstream partition plate (71) and the downstream partition plate (72) in a posture orthogonal to the upstream partition plate (71) and the downstream partition plate (72). Yes. The central partition plate (73) is provided from the upstream partition plate (71) to the downstream partition plate (72), and the space between the upstream partition plate (71) and the downstream partition plate (72) is left and right. It is divided into.

    In the casing (11), the space between the upstream partition plate (71) and the back panel (13) is partitioned into two upper and lower spaces, and the upper space constitutes the inside air passage (32), The side space constitutes the outside air passage (34). The room air side passage (32) communicates with the room through a duct connected to the room air inlet (23). An inside air filter (27) and an inside air humidity sensor (96) are installed in the inside air passage (32). The outside air passage (34) communicates with the outdoor space via a duct connected to the outside air inlet (24). An outside air filter (28) and an outside air humidity sensor (97) are installed in the outside air passage (34).

    The indoor air passage (32) is provided with an indoor air temperature sensor (98) for detecting the indoor air temperature, and the outdoor air passage (34) is provided with an outdoor air temperature sensor (99) for detecting the outdoor air temperature. Has been.

    The space between the upstream partition plate (71) and the downstream partition plate (72) in the casing (11) is divided into left and right by the central partition plate (73), and the space on the right side of the central partition plate (73) is The first heat exchanger chamber (37) is configured, and the space on the left side of the central partition plate (73) configures the second heat exchanger chamber (38). A first adsorption heat exchanger (51) is accommodated in the first heat exchanger chamber (37). The second adsorption heat exchanger (52) is accommodated in the second heat exchanger chamber (38). Moreover, although not shown in figure, the electric expansion valve (55) of a refrigerant circuit (50) is accommodated in the 1st heat exchanger chamber (37).

    Each adsorption heat exchanger (51, 52) has a surface of a so-called cross fin type fin-and-tube heat exchanger carrying an adsorbent, and is a rectangular plate or flat rectangular parallelepiped as a whole. It is formed in a shape. Each adsorption heat exchanger (51, 52) is placed in the heat exchanger chamber (37, 38) so that its front and back surfaces are parallel to the upstream partition plate (71) and the downstream partition plate (72). It is erected.

    In the internal space of the casing (11), the space along the front surface of the downstream partition plate (72) is partitioned vertically, and the upper part of the vertically partitioned space is the air supply side passageway (31). The lower part constitutes the exhaust side passage (33).

    The upstream partition plate (71) is provided with four open / close dampers (41 to 44). Each damper (41-44) is formed in the shape of a substantially horizontally long rectangle. Specifically, in a part (upper part) facing the room air passage (32) in the upstream partition (71), the first room air damper (41) is attached to the right side of the central partition (73). The second inside air damper (42) is attached to the left side of the central partition plate (73). Moreover, in the part (lower part) which faces an external air side channel | path (34) among upstream side partition plates (71), the 1st external air side damper (43) is attached to the right side rather than a center partition plate (73), A second outside air damper (44) is attached to the left side of the central partition plate (73).

    The downstream partition plate (72) is provided with four open / close dampers (45 to 48). Each damper (45-48) is formed in the shape of a substantially horizontally long rectangle. Specifically, in the part (upper part) facing the supply side passageway (31) in the downstream partition plate (72), the first supply side damper (45) is located on the right side of the central partition plate (73). The second air supply side damper (46) is attached to the left side of the central partition plate (73). Moreover, in the part (lower part) which faces an exhaust side channel | path (33) among downstream partition plates (72), the 1st exhaust side damper (47) is attached to the right side rather than a center partition plate (73), A second exhaust side damper (48) is attached to the left side of the central partition plate (73).

    In the casing (11), the space between the air supply side passage (31) and the exhaust side passage (33) and the front panel portion (12) is divided into left and right by the partition plate (77), and the partition plate (77 ) Constitutes the air supply fan chamber (36), and the space on the left side of the partition plate (77) constitutes the exhaust fan chamber (35).

    The air supply fan (26) is accommodated in the air supply fan chamber (36). The exhaust fan chamber (35) accommodates an exhaust fan (25). The supply fan (26) and the exhaust fan (25) are both centrifugal multiblade fans (so-called sirocco fans). The air supply fan (26) blows out the air sucked from the downstream side partition plate (72) side to the air supply port (22). The exhaust fan (25) blows out the air sucked from the downstream partition plate (72) side to the exhaust port (21).

    The supply fan chamber (36) accommodates the compressor (53) and the four-way switching valve (54) of the refrigerant circuit (50). The compressor (53) and the four-way selector valve (54) are disposed between the air supply fan (26) and the partition plate (77) in the air supply fan chamber (36).

    In the casing (11), the space between the first partition (74) and the first side panel (14) forms a first bypass passage (81). The starting end of the first bypass passage (81) communicates only with the outside air passage (34) and is blocked from the inside air passage (32). The terminal end of the first bypass passage (81) is partitioned by a partition plate (78) from an air supply side passage (31), an exhaust side passage (33), and an air supply fan chamber (36). A first bypass damper (83) is provided in a portion of the partition plate (78) facing the supply fan chamber (36).

    In the casing (11), the space between the second partition (75) and the second side panel (15) constitutes a second bypass passage (82). The starting end of the second bypass passage (82) communicates only with the inside air side passage (32) and is blocked from the outside air side passage (34). The end of the second bypass passage (82) is partitioned from the air supply side passage (31), the exhaust side passage (33), and the exhaust fan chamber (35) by a partition plate (79). A second bypass damper (84) is provided in a portion of the partition plate (79) facing the exhaust fan chamber (35).

    2, the first bypass passage (81), the second bypass passage (82), the first bypass damper (83), and the second bypass damper (84) are illustrated. Omitted.

<Configuration of refrigerant circuit>
As shown in FIG. 3, the refrigerant circuit (50) includes a first adsorption heat exchanger (51), a second adsorption heat exchanger (52), a compressor (53), a four-way switching valve (54), and an electric expansion valve. The closed circuit provided with (55) constitutes humidity control means. The refrigerant circuit (50) performs a vapor compression refrigeration cycle by circulating the filled refrigerant.

    In the refrigerant circuit (50), the compressor (53) has its discharge side connected to the first port of the four-way switching valve (54) and its suction side connected to the second port of the four-way switching valve (54). . In the refrigerant circuit (50), the first adsorption heat exchanger (51), the electric expansion valve (55), and the second adsorption heat exchanger (52) are connected from the third port of the four-way switching valve (54). They are connected in order toward the fourth port.

    The four-way switching valve (54) includes a first state (state shown in FIG. 3A) 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 second port and the fourth port can communicate with each other, and the second port and the third port can communicate with each other in the second state (the state shown in FIG. 3B).

    In the refrigerant circuit (50), a pipe connecting the discharge side of the compressor (53) and the first port of the four-way switching valve (54) includes a high pressure sensor (91), a discharge pipe temperature sensor (93), Is attached. The high pressure sensor (91) measures the pressure of the refrigerant discharged from the compressor (53). The discharge pipe temperature sensor (93) measures the temperature of the refrigerant discharged from the compressor (53).

    In the refrigerant circuit (50), a pipe connecting the suction side of the compressor (53) and the second port of the four-way switching valve (54) includes a low pressure sensor (92) and a suction pipe temperature sensor (94). ) And are attached. The low pressure sensor (92) measures the pressure of the refrigerant sucked into the compressor (53). The suction pipe temperature sensor (94) measures the temperature of the refrigerant sucked into the compressor (53).

    In the refrigerant circuit (50), a pipe temperature sensor (95) is attached to a pipe connecting the third port of the four-way switching valve (54) and the first adsorption heat exchanger (51). The pipe temperature sensor (95) is disposed in the vicinity of the four-way switching valve (54) in this pipe and measures the temperature of the refrigerant flowing in the pipe.

-Driving action-
The humidity control apparatus (10) of the present embodiment selectively performs a dehumidification ventilation operation, a humidification ventilation operation, and a simple ventilation operation. The humidity control device (10) during dehumidification ventilation operation or humidification ventilation operation adjusts the humidity of the taken outdoor air (OA) and supplies it to the room as supply air (SA). To the outside as exhaust air (EA). On the other hand, the humidity control apparatus (10) during the simple ventilation operation supplies the taken outdoor air (OA) to the room as supply air (SA) as it is, and at the same time, takes the taken indoor air (RA) as exhaust air (EA ) To discharge outside.

<Dehumidification ventilation operation>
In the humidity control apparatus (10) during the dehumidifying ventilation operation, a first operation and a second operation described later are alternately repeated at a predetermined time interval (for example, every 3 minutes). During the dehumidifying ventilation operation, the first bypass damper (83) and the second bypass damper (84) are always closed.

    In the humidity control apparatus (10) during the dehumidification / ventilation operation, outdoor air is taken as first air from the outside air inlet (24) into the casing (11), and indoor air is taken from the inside air inlet (23) to the casing (11). It is taken in as second air.

    First, the first operation of the dehumidifying ventilation operation will be described. As shown in FIG. 4, during this first operation, the first inside air damper (41), the second outside air damper (44), the second air supply damper (46), and the first exhaust air damper (47) ) Is opened, and the second inside air damper (42), the first outside air damper (43), the first air supply damper (45), and the second exhaust side damper (48) are closed. In the refrigerant circuit (50) during the first operation, the four-way switching valve (54) is set to the first state (the state shown in FIG. 3A), and the first adsorption heat exchanger (51) is condensed. The second adsorption heat exchanger (52) becomes an evaporator.

    The first air that has flowed into the outside air passage (34) and passed through the outside air filter (28) flows into the second heat exchanger chamber (38) through the second outside air damper (44), and thereafter It passes through the second adsorption heat exchanger (52). In the second adsorption heat exchanger (52), moisture in the first air is adsorbed by the adsorbent, and the heat of adsorption generated at that time is absorbed by the refrigerant. The first air dehumidified by the second adsorption heat exchanger (52) flows into the supply air passage (31) through the second supply air damper (46) and passes through the supply air fan chamber (36). Later, the air is supplied into the room through the air supply port (22).

    On the other hand, the second air that has flowed into the room air passage (32) and passed through the room air filter (27) flows into the first heat exchanger chamber (37) through the first room air damper (41), Thereafter, it passes through the first adsorption heat exchanger (51). In the first adsorption heat exchanger (51), moisture is desorbed from the adsorbent heated by the refrigerant, and the desorbed moisture is given to the second air. The second air given moisture in the first adsorption heat exchanger (51) flows into the exhaust side passage (33) through the first exhaust side damper (47) and passes through the exhaust fan chamber (35). It is discharged outside through the exhaust port (21).

    Next, the second operation of the dehumidifying ventilation operation will be described. As shown in FIG. 5, during the second operation, the second inside air side damper (42), the first outside air side damper (43), the first air supply side damper (45), and the second exhaust side damper (48 ) Is opened, and the first inside air damper (41), the second outside air damper (44), the second air supply damper (46), and the first exhaust damper (47) are closed. In the refrigerant circuit (50) during the second operation, the four-way switching valve (54) is set to the second state (the state shown in FIG. 3B), and the first adsorption heat exchanger (51) is evaporated. The second adsorption heat exchanger (52) becomes a condenser.

    The first air that has flowed into the outside air passage (34) and passed through the outside air filter (28) flows into the first heat exchanger chamber (37) through the first outside air damper (43), and thereafter Passes through the first adsorption heat exchanger (51). In the first adsorption heat exchanger (51), moisture in the first air is adsorbed by the adsorbent, and the adsorption heat generated at that time is absorbed by the refrigerant. The first air dehumidified by the first adsorption heat exchanger (51) flows into the supply air passage (31) through the first supply air damper (45) and passes through the supply air fan chamber (36). Later, the air is supplied into the room through the air supply port (22).

    On the other hand, the second air that has flowed into the room air passage (32) and passed through the room air filter (27) flows into the second heat exchanger chamber (38) through the second room air damper (42), Thereafter, it passes through the second adsorption heat exchanger (52). In the second adsorption heat exchanger (52), moisture is desorbed from the adsorbent heated by the refrigerant, and the desorbed moisture is given to the second air. The second air given moisture in the second adsorption heat exchanger (52) flows into the exhaust side passage (33) through the second exhaust side damper (48) and passes through the exhaust fan chamber (35). It is discharged outside through the exhaust port (21).

<Humidified ventilation operation>
In the humidity control apparatus (10) during the humidification ventilation operation, a first operation and a second operation described later are alternately repeated at a predetermined time interval (for example, every 3 minutes). During the humidification ventilation operation, the first bypass damper (83) and the second bypass damper (84) are always closed.

    In the humidity control apparatus (10) during the humidification ventilation operation, outdoor air is taken as second air from the outside air inlet (24) into the casing (11), and indoor air is taken from the inside air inlet (23) to the casing (11). It is taken in as 1st air in.

    First, the 1st operation | movement of humidification ventilation operation is demonstrated. As shown in FIG. 6, during the first operation, the second inside air side damper (42), the first outside air side damper (43), the first air supply side damper (45), and the second exhaust side damper (48 ) Is opened, and the first inside air damper (41), the second outside air damper (44), the second air supply damper (46), and the first exhaust damper (47) are closed. In the refrigerant circuit (50) during the first operation, the four-way switching valve (54) is set to the first state (the state shown in FIG. 3A), and the first adsorption heat exchanger (51) is condensed. The second adsorption heat exchanger (52) becomes an evaporator.

    The first air that has flowed into the room air passage (32) and passed through the room air filter (27) flows into the second heat exchanger chamber (38) through the second room air damper (42), and then It passes through the second adsorption heat exchanger (52). In the second adsorption heat exchanger (52), moisture in the first air is adsorbed by the adsorbent, and the heat of adsorption generated at that time is absorbed by the refrigerant. The first air deprived of moisture in the second adsorption heat exchanger (52) flows into the exhaust side passage (33) through the second exhaust side damper (48) and passes through the exhaust fan chamber (35). It is discharged outside through the exhaust port (21).

    On the other hand, the second air that flows into the outside air passage (34) and passes through the outside air filter (28) flows into the first heat exchanger chamber (37) through the first outside air damper (43), Thereafter, it passes through the first adsorption heat exchanger (51). In the first adsorption heat exchanger (51), moisture is desorbed from the adsorbent heated by the refrigerant, and the desorbed moisture is given to the second air. The second air humidified by the first adsorption heat exchanger (51) flows through the first air supply damper (45) into the air supply passage (31) and passes through the air supply fan chamber (36). Later, the air is supplied into the room through the air supply port (22).

    Next, the second operation of the humidification ventilation operation will be described. As shown in FIG. 7, during this second operation, the first inside air damper (41), the second outside air damper (44), the second air supply side damper (46), and the first exhaust side damper (47) ) Is opened, and the second inside air damper (42), the first outside air damper (43), the first air supply damper (45), and the second exhaust side damper (48) are closed. In the refrigerant circuit (50) during the second operation, the four-way switching valve (54) is set to the second state (the state shown in FIG. 3B), and the first adsorption heat exchanger (51) is evaporated. The second adsorption heat exchanger (52) becomes a condenser.

    The first air that has flowed into the room air passage (32) and passed through the room air filter (27) flows into the first heat exchanger chamber (37) through the first room air damper (41), and then Passes through the first adsorption heat exchanger (51). In the first adsorption heat exchanger (51), moisture in the first air is adsorbed by the adsorbent, and the adsorption heat generated at that time is absorbed by the refrigerant. The first air deprived of moisture by the first adsorption heat exchanger (51) flows into the exhaust side passage (33) through the first exhaust side damper (47) and passes through the exhaust fan chamber (35). It is discharged outside through the exhaust port (21).

    On the other hand, the second air that has flowed into the outside air passage (34) and passed through the outside air filter (28) flows into the second heat exchanger chamber (38) through the second outside air damper (44), Thereafter, it passes through the second adsorption heat exchanger (52). In the second adsorption heat exchanger (52), moisture is desorbed from the adsorbent heated by the refrigerant, and the desorbed moisture is given to the second air. The second air humidified by the second adsorption heat exchanger (52) flows through the second supply air damper (46) into the supply air passage (31) and passes through the supply air fan chamber (36). Later, the air is supplied into the room through the air supply port (22).

<Simple ventilation operation>
The operation of the humidity control apparatus (10) during the simple ventilation operation will be described with reference to FIG.

    In the humidity control apparatus (10) during the simple ventilation operation, the first bypass damper (83) and the second bypass damper (84) are opened, and the first room air damper (41) and the second room air damper ( 42), a first outside air damper (43), a second outside air damper (44), a first air supply damper (45), a second air supply damper (46), a first exhaust air damper (47), and The second exhaust side damper (48) is closed. Further, during the simple ventilation operation, the compressor (53) of the refrigerant circuit (50) is stopped.

    In the humidity control apparatus (10) during the simple ventilation operation, outdoor air is taken into the casing (11) from the outside air inlet (24). The outdoor air that has flowed into the outside air passage (34) through the outside air inlet (24) flows from the first bypass passage (81) through the first bypass damper (83) into the supply fan chamber (36). Then, the air is supplied into the room through the air supply port (22).

    Further, in the humidity control apparatus (10) during the simple ventilation operation, room air is taken into the casing (11) from the inside air suction port (23). The room air that has flowed into the inside air passage (32) through the inside air inlet (23) flows from the second bypass passage (82) through the second bypass damper (84) into the exhaust fan chamber (35). Then, it is discharged to the outside through the exhaust port (21).

-Fan control-
Next, the fan control of this embodiment will be described.

    As shown in FIG. 3, the humidity control apparatus (10) of the present embodiment includes a controller (60). The controller (60) is configured to receive a sensor signal from the low pressure sensor (92) or the like and control the capacity of the compressor (53) or the like.

    Further, as shown in FIGS. 9 and 11, the controller (60) includes a rotation speed control means (61) and a rotation speed determination means (62) for controlling the exhaust fan (25) and the air supply fan (26). And a rotation speed adjusting means (63). That is, the controller (60) controls the exhaust fan (25) and the air supply fan (26) corresponding to a plurality of air passages formed in the casing (11). The plurality of air passages include an air supply passage (34,..., 36), an exhaust passage (32,..., 35), and a ventilation passage (81, 82,...). Specifically, each passage is formed as follows.

    The air supply passages (34,..., 36) are passages that supply humidity-conditioned air that has passed through the first adsorption heat exchanger (51) or the second adsorption heat exchanger (52) into the room, and are exhaust passages. (32,..., 35) is a passage for discharging the exhausted air that has passed through the second adsorption heat exchanger (52) or the first adsorption heat exchanger (51) to the outside, and the ventilation passage (81, 82,... ) Is a passage through which ventilation air passes only through the exhaust fan (25) and the air supply fan (26).

    The air supply passages (34,..., 36) are, during the first operation of the dehumidification ventilation operation, the outside air passage (34), the second heat exchanger chamber (38), the air supply side passage (31), and the air supply fan. The chamber (36) communicates with each other in order (see the white arrow in FIG. 4).

    The air supply passages (34,..., 36) are the outside air passage (34), the second heat exchanger chamber (38), the air supply passage (31), and the air supply fan during the second operation of the humidification ventilation operation. The chamber (36) is configured to communicate with each other in order (see the hatched arrows in FIG. 7, the same as the first operation of the dehumidifying ventilation operation).

    The air supply passages (34,..., 36) are, during the second operation of the dehumidifying ventilation operation, the outside air passage (34), the first heat exchanger chamber (37), the air supply passage (31), and the air supply fan. The chamber (36) communicates with the chamber (36) (see the white arrow in FIG. 5).

    The air supply passages (34,..., 36) are, in the first operation of the humidification ventilation operation, the outside air passage (34), the first heat exchanger chamber (37), the air supply side passage (31), and the air supply fan. The chamber (36) is configured to communicate with each other in order (see the hatched arrows in FIG. 6, the same as the second operation of the dehumidifying ventilation operation).

    The exhaust passages (32,..., 35) are, during the first operation of the dehumidifying ventilation operation, the inside air side passage (32), the first heat exchanger chamber (37), the exhaust side passage (33), and the exhaust fan chamber (35 ) Are communicated with each other in order (see hatched arrows in FIG. 4).

    The exhaust passages (32,..., 35) are the inside air side passage (32), the first heat exchanger chamber (37), the exhaust side passage (33), and the exhaust fan chamber (35) during the second operation of the humidification ventilation operation. ) In order (refer to the white arrow in FIG. 7, the same as the first operation of the dehumidifying ventilation operation).

    The exhaust passages (32,..., 35) are, in the second operation of the dehumidifying ventilation operation, the inside air side passage (32), the second heat exchanger chamber (38), the exhaust side passage (33), and the exhaust fan chamber (35 ) Are connected in order (see the hatched arrows in FIG. 5).

    The exhaust passages (32,..., 35) are the inside air side passage (32), the second heat exchanger chamber (38), the exhaust side passage (33), and the exhaust fan chamber (35) during the first operation of the humidification ventilation operation. ) In order (see the white arrow in FIG. 6, the same as the second operation of the dehumidifying ventilation operation).

    In the simple ventilation operation, the ventilation passages (81, 82,...) Communicate with the outside air passage (34), the first bypass passage (81), and the air supply fan chamber (36) in order, and the inside air passage (32 ), The second bypass passage (82), and the exhaust fan chamber (35) are sequentially connected to each other (see white arrows and hatched arrows in FIG. 8).

    The rotational speed control means (61) controls the rotational speeds of the exhaust fan (25) and the air supply fan (26) so that the air volume in the ventilation passage (81, 82,...) Becomes a predetermined target air volume. The rotational speeds of the exhaust fan (25) and the air supply fan (26) with respect to the ventilation passage (81, 82,...) Are determined. Specifically, the rotation speed control means (61) integrates the power consumption of the exhaust fan (25) and the air supply fan (26) until a predetermined time elapses, and the integrated value of the power consumption is preset. The rotational speeds of the exhaust fan (25) and the air supply fan (26) are determined so that the required power value of the target air volume is obtained. That is, the rotation speed control means (61) stores in advance the relationship between the required power and the rotation speed with respect to the target air volume in each passage for each operation, and from the power consumption, the exhaust fan (25) and the supply fan (26) Determine the number of revolutions.

    The rotational speed control means (61) starts the determination operation when a predetermined instruction is input from the operation stop state. Specifically, the rotation speed control means (61) performs a fixed operation when a signal for determining the rotation speed is input from the outside by an operator or when the filter sign is reset and the operation is restarted. I do. That is, when the inside air side filter (27) and the outside air side filter (28) are replaced, the air resistance changes. Therefore, the rotation speed control means (61) is configured to perform an operation for determining the rotation speed. ing.

    The rotational speed determining means (62) is based on the rotational speed of the exhaust fan (25) and the air supply fan (26) with respect to the ventilation passage (81, 82,...) Determined by the rotational speed control means (61). (34, ..., 36) and the exhaust passage (32, ..., 35) with respect to the supply passage (34, ..., 36) and the exhaust passage (32, ..., 35) so that the air volume of the exhaust passage (32, ..., 35) becomes a predetermined target air volume. The rotational speeds of the exhaust fan (25) and the air supply fan (26) are determined.

    The rotational speed determining means (62) includes the rotational speeds of the exhaust fan (25) and the air supply fan (26) relative to the ventilation passage (81, 82, ...), the air supply passage (34, ..., 36) and the exhaust passage. (32,..., 35) is stored in advance (relational expression) with the rotational speed of the exhaust fan (25) and the air supply fan (26), and based on the relationship, the air supply passage (34,..., 36) and The rotational speeds of the exhaust fan (25) and the air supply fan (26) with respect to the exhaust passage (32, ..., 35) are determined.

    The rotational speed adjusting means (63) integrates the power consumption of the exhaust fan (25) and the air supply fan (26) until a predetermined time elapses, and the integrated value of the power consumption needs a preset target air volume. The rotational speeds of the exhaust fan (25) and the air supply fan (26) are controlled so that the electric power value is obtained. That is, the rotational speed adjusting means (63) stores, in advance, the relationship between the required power and the rotational speed with respect to the target air volume in each passage for each operation in the same manner as the rotational speed control means (61). Adjust the rotation speed of the exhaust fan (25) and the air supply fan (26).

    Further, the rotation speed adjusting means (63) starts the rotation speed adjustment operation at every predetermined time during the humidity control operation, for example, starts the rotation speed adjustment operation every hour. That is, since the air volume changes when the air temperature changes during the humidity control operation, the rotation speed adjustment means (63) starts the rotation speed adjustment operation every predetermined time.

    The rotation speed adjusting means (63) uses an intermediate time between a predetermined initial time immediately after switching and a predetermined end time before switching, among the operating times of the first operation and the second operation. That is, immediately after the operation is switched, the rotational speed, temperature, and the like are not stable. For example, 30 seconds immediately after the switching and 30 seconds before the switching are not integrated.

    The rotation speed adjusting means (63) uses the operation time after a predetermined initial time has elapsed as the accumulated time in the operation time of the ventilation operation. That is, immediately after the operation is switched, the rotation speed, temperature, and the like are not stable. For example, 30 seconds after the start of the ventilation operation is not integrated.

-Fan control operation-
Next, operations for controlling the rotation speeds of the air supply fan (26) and the exhaust fan (25) will be described based on a control flow.

    As shown in FIG. 9, when the rotational speed control operation is started, in step ST1, when an instruction to adjust the rotational speed is given while the operation is stopped, the process proceeds to step ST2. In other words, when the operation is stopped and a signal for determining the rotational speed is input by an operator or the like from the outside during installation or when the filter sign is reset and the operation is restarted, the operation proceeds to step ST2. The rotational speed Frs of the air fan (26) and the rotational speed Frr of the exhaust fan (25) are set, and the final control of the fan rotational speed is started (see FIG. 10A). Thereafter, the dampers are determined by opening and closing the ten dampers (41 to 48, 83, 84), and the first bypass damper (83) and the second bypass damper (84) are opened (FIGS. 10B, C). reference). That is, it is set as the state of simple ventilation operation which is ventilation operation.

    Subsequently, the process proceeds to step ST4, where the air supply fan (26) and the exhaust fan (25) are driven (see FIG. 10C), and the rotational speeds of the air supply fan (26) and the exhaust fan (25) are predetermined instructions. Waiting for the rotation speed to be reached, the process proceeds to step ST4 to start a timer (see FIG. 10D). That is, the air supply fan (26) and the exhaust fan (25) are rotated to a certain degree to accumulate power consumption.

    Next, the process proceeds to step ST5, where it is determined whether or not the timer has counted 20 seconds. After 20 seconds have elapsed, the process proceeds to step ST6 to calculate power consumption. Thereafter, the operations in steps ST5 to ST7 are repeated until the fan air volume falls within ± 1% of the target value or the operations in steps ST5 to ST7 are repeated five times.

    That is, the rotation speed control means (61) performs simple ventilation operation by rotating the air supply fan (26) and the exhaust fan (25) at preset initial values Frs and Frr (step ST3) for 20 seconds. Are integrated (step ST6). The rotational speed control means (61) stores in advance the relationship between the required power and the rotational speed with respect to the target air volume in each passage, and the exhaust fan (25) and the air supply in the ventilation passage (81, 82,...) From the power consumption. Determine the speed of the fan (26).

    Thereafter, the process proceeds from step ST7 to step ST8, and the rotation speed determining means (62) determines the supply passage (from the rotation speed of the exhaust fan (25) and the supply fan (26) of the ventilation passage (81, 82,...)). 34,..., 36) and the exhaust fan (25) and the supply fan (26) in the exhaust passage (32, 35) are determined. In other words, the rotational speed determining means (62) is configured such that the rotational speeds of the exhaust fan (25) and the air supply fan (26) with respect to the ventilation passage (81, 82, ...), the air supply passage (34, ..., 36) and A relational expression between the exhaust fan (25) and the rotation speed of the air supply fan (26) with respect to the exhaust passage (32, ..., 35) is stored in advance, and the air supply passage (34, ..., 36) and The rotational speeds of the exhaust fan (25) and the air supply fan (26) with respect to the exhaust passage (32,..., 35) are determined, and the fan determination control is ended (see FIG. 10E).

    Moreover, as shown in FIG. 11, the rotation speed adjustment means (63) adjusts the fan rotation speed during the humidity control operation. When this adjustment operation is started, first, in step ST11, the process proceeds to step ST12 on the condition that it is one of the first operation and the second operation of the simple ventilation operation, the dehumidification ventilation operation, and the humidification ventilation operation, and the power consumption is integrated. To do.

    That is, the rotation speed adjusting means (63) performs the adjustment operation every hour during each operation of the simple ventilation operation, the dehumidification ventilation operation, and the humidification ventilation operation, and thus integrates the power consumption for one hour during each operation. This integration is performed so that 30 seconds immediately after the switching and 30 seconds before the switching are not integrated out of the operation times of the first operation and the second operation, and the integration time is 2 minutes. In addition, the integration is performed in 30 seconds after the start of the ventilation operation in the operation time of the simple ventilation operation.

    Thereafter, the process proceeds from step ST12 to step ST13, and the required power is calculated. That is, since the rotational speed adjusting means (63) stores in advance the relationship between the required power and the rotational speed with respect to the target air volume, the power consumption of the exhaust fan (25) and the air supply fan (26) and the target air volume Calculate the required power.

    Subsequently, the process proceeds from step ST13 to step ST14, and it is determined whether or not the fan air volume is within ± 1% of the target value. If the fan air volume is a predetermined air volume, the adjustment operation is terminated. On the other hand, if the fan air volume is not within ± 1% of the target value, the process proceeds from step ST14 to step ST15, and the rotational speeds of the exhaust fan (25) and the air supply fan (26) are adjusted so that the required power of the target air volume is obtained. Then, the adjustment operation is finished.

-Effect of the embodiment-
As described above, according to the present embodiment, after determining the fan rotation speed of one air passage, the fan rotation speed of another air passage is determined based on the fan rotation speed of this air passage. Since the number of fan rotations can be determined in consideration of the ventilation resistance of each air passage, the optimum air volume can be supplied during each operation. As a result, each humidity control operation can improve comfort.

    Further, since the fan rotation speed is determined in consideration of the air resistance of each air passage, the accurate fan rotation speed can be determined.

    In particular, when there are an air supply passage (34,..., 36), an exhaust passage (32,..., 35) and a ventilation passage (81, 82,...), The fan rotation speed suitable for each passage can be determined. Therefore, it is possible to improve the comfort of humidity control without fail.

    Moreover, since the said rotation speed control means (61) determines the fan rotation speed with respect to a ventilation channel | path (81, 82, ...), it can determine a fan rotation speed easily. In other words, because the ventilation passage (81, 82,...) Is used at the time of initial setting because of odor or the like, the other air supply passages are determined by determining the fan speed from this ventilation passage (81, 82,...). The fan speed such as (34,..., 36) can be quickly determined.

    Further, since the rotation speed control means (61) determines the fan rotation speed based on the power consumption of the exhaust fan (25) and the air supply fan (26), the accurate fan rotation speed can be eliminated by eliminating the influence of temperature. Can be determined. In particular, the exhaust fan (25) and the air supply fan (26) are arranged downstream of the first adsorption heat exchanger (51) and the second adsorption heat exchanger (52), eliminating the influence of temperature. Thus, an accurate fan rotation speed can be determined.

    Further, the rotational speed determining means (62) includes the fan rotational speed of the ventilation passage (81, 82,...) And the fan rotational speed of the air supply passage (34,..., 36) and the exhaust passage (32,..., 35). The fan speeds of the air supply passage (34, ..., 36) and the exhaust passage (32, ..., 35) are determined based on the relationship between the air supply passage (34, ..., 36) and the exhaust passage ( 32, ..., 35) fan speed can be determined.

    Further, since the rotational speed control means (61) starts the determining operation in accordance with a predetermined instruction, the fan rotational speed can be reliably determined accurately when the filter resistance is changed and the ventilation resistance is changed. .

    Further, since the rotation speed adjusting means (63) determines the fan rotation speed based on the power consumption of the exhaust fan (25) and the air supply fan (26), the accurate fan rotation speed can be eliminated without affecting the temperature. Can be adjusted. In particular, the exhaust fan (25) and the air supply fan (26) are arranged downstream of the first adsorption heat exchanger (51) and the second adsorption heat exchanger (52), eliminating the influence of temperature. Thus, an accurate fan rotation speed can be determined.

    In addition, when there are air supply passages (34,..., 36), exhaust passages (32,..., 35) and ventilation passages (81, 82,...), It is possible to adjust the fan speed suitable for each passage. As a result, it is possible to improve the comfort of humidity control without fail.

    Moreover, since the said rotation speed adjustment means (63) is performed for every predetermined time during humidity control operation, it can be adjusted to an exact fan rotation speed with respect to a temperature change.

    Further, since the rotation speed adjusting means (63) does not include the predetermined time before and after switching between the first operation and the second operation in the integrated time of power consumption, the influence of the unstable rotation speed and the like is eliminated. , Can be adjusted to the exact fan speed.

    In addition, since the rotation speed adjusting means (63) starts integrating power consumption after a predetermined time from the switching of the simple ventilation operation, the influence of the unstable rotation speed and the like is eliminated, and the accurate fan rotation speed is obtained. Can be adjusted.

-Modification 1 of embodiment-
In the refrigerant circuit (50) of the present embodiment, a supercritical cycle in which the high pressure of the refrigeration cycle is set to a value higher than the critical pressure of the refrigerant may be performed. In that case, one of the first adsorption heat exchanger (51) and the second adsorption heat exchanger (52) operates as a gas cooler, and the other operates as an evaporator.

-Modification 2 of embodiment-
In the humidity control apparatus (10) of the present embodiment, the adsorbent carried on the first adsorption heat exchanger (51) and the second adsorption heat exchanger (52) is heated or cooled by the refrigerant. The adsorbent may be heated or cooled by supplying cold water or hot water to the first adsorption heat exchanger (51) and the second adsorption heat exchanger (52).

-Reference Example 1-
Upper Sulfur butterfly humidity controller (10) may be configured as follows.

As shown in FIG. 12, the humidity controller (10) of the present reference example includes a refrigerant circuit (100) and two adsorbing elements (111, 112). The refrigerant circuit (100) is a closed circuit in which a compressor (101), a condenser (102), an expansion valve (103), and an evaporator (104) are connected in order. When the refrigerant is circulated in the refrigerant circuit (100), a vapor compression refrigeration cycle is performed. The first adsorption element (111) and the second adsorption element (112) include an adsorbent such as zeolite. Each adsorbing element (111, 112) is formed with a large number of air passages, and air contacts the adsorbent when passing through the air passages.

The humidity control apparatus (10) of this reference example selectively performs dehumidification ventilation operation, humidification ventilation operation, and simple ventilation operation.

    The humidity control apparatus (10) during the dehumidification / ventilation operation or the humidification return air operation alternately performs the first operation and the second operation at predetermined time intervals. The humidity control apparatus (10) during the dehumidification / ventilation operation takes outdoor air as first air and takes indoor air as second air. On the other hand, the humidity control apparatus (10) during the humidification ventilation operation takes in indoor air as the first air and takes in outdoor air as the second air.

    First, the first operation of the dehumidifying ventilation operation and the humidifying return air operation will be described with reference to FIG. The humidity controller (10) in the first operation supplies the second air heated by the condenser (102) to the first adsorption element (111). In the first adsorption element (111), the adsorbent is heated by the second air, and moisture is desorbed from the adsorbent. In addition, the humidity controller (10) during the first operation supplies the first air to the second adsorption element (112), and adsorbs the moisture in the first air to the second adsorption element (112). The first air deprived of moisture by the second adsorption element (112) is cooled when passing through the evaporator (104).

    Next, the second operation of the dehumidification / ventilation operation and the humidification return air operation will be described with reference to FIG. The humidity control apparatus (10) in the second operation supplies the second air heated by the condenser (102) to the second adsorption element (112). In the second adsorption element (112), the adsorbent is heated by the second air, and moisture is desorbed from the adsorbent. In addition, the humidity controller (10) during the first operation supplies the first air to the first adsorption element (111), and adsorbs moisture in the first air to the first adsorption element (111). The first air deprived of moisture by the first adsorption element (111) is cooled when passing through the evaporator (104).

    The humidity control apparatus (10) during the dehumidification / ventilation operation supplies the dehumidified first air (outdoor air) to the room and the moisture desorbed from the adsorption elements (111, 112) into the second air (room air). ) And discharge outside. Further, the humidity control device (10) during the humidification ventilation operation supplies the humidified second air (outdoor air) to the room, and the first air (room air) from which the moisture is deprived by the adsorption elements (111, 112). ) To the outside.

    In the humidity controller (10) during the simple ventilation operation, the compressor (101) of the refrigerant circuit (100) is stopped, and one of the first adsorption element (111) and the second adsorption element (112) is turned on. Outdoor air passes and room air passes through the other. And outdoor air is supplied indoors after passing adsorption element (111,112), and indoor air is discharged | emitted outside after passing adsorption element (111,112). In the humidity control apparatus (10) during the simple ventilation operation, the outdoor air and the indoor air are not switched.

-Reference example 2-
Upper Sulfur butterfly humidity controller (10) may be configured as follows.

As shown in FIG. 13, the humidity control apparatus (10) of the present reference example includes a main body unit (150) and a heat source unit (165).

    The internal space of the main unit (150) is partitioned into an air supply passage (151) and an exhaust passage (152). The air supply passageway (151) has a start end communicating with the outside air intake port (153) and a terminal end communicating with the air supply port (154). In the supply passage (151), a use side heat exchanger (161), a humidifying element (162), and an supply fan (157) are arranged in order from the start end to the end. The exhaust passage (152) has a start end communicating with the inside air suction port (155) and a terminal end communicating with the exhaust port (156). An exhaust fan (158) is disposed in the exhaust passage (152).

    The heat source unit (165) is connected to the use side heat exchanger (161) via a pair of connecting pipes (166). Although not shown, the heat source unit (165) includes a compressor, an expansion valve, and the like. The heat source unit (165) forms a refrigerant circuit (167) together with the use side heat exchanger (161). The use side heat exchanger (161) is an air heat exchanger that exchanges heat between air and a refrigerant. The refrigerant circuit (167) selectively performs a refrigeration cycle operation in which the use side heat exchanger (161) is an evaporator and a refrigeration cycle operation in which the use side heat exchanger (161) is a condenser.

    Although not shown, in the humidifying element (162), a water passage and an air passage are formed with a moisture permeable membrane interposed therebetween. In the water passage, tap water supplied from the outside flows. In the air passage, air flowing through the air supply passage (151) flows. The moisture permeable membrane allows only water vapor to pass without passing water which is liquid.

The humidity control apparatus (10) of this reference example selectively performs dehumidification ventilation operation, humidification ventilation operation, and simple ventilation operation.

    In the humidity control apparatus (10) during the dehumidifying ventilation operation, the refrigerant circuit (167) performs a refrigeration cycle operation in which the use side heat exchanger (161) serves as an evaporator, and water supply to the humidifying element (162) is stopped. . During this operation, the evaporation temperature of the refrigerant in the use side heat exchanger (161) is set to a value lower than the dew point temperature of the outdoor air. The outdoor air that has flowed into the air supply passageway (151) is cooled when passing through the use side heat exchanger (161), and moisture in the outdoor air is condensed to become drain water. The outdoor air that has passed through the use side heat exchanger (161) passes through the humidifying element (162) and then is supplied to the room through the air supply port (154). The drain water generated in the use side heat exchanger (161) is discharged outside the room. The room air that has flowed into the exhaust passage (152) is exhausted to the outside through the exhaust port (156).

    In the humidity control apparatus (10) during the humidification ventilation operation, the refrigerant circuit (167) performs a refrigeration cycle operation in which the use side heat exchanger (161) serves as a condenser, and water is supplied to the humidification element (162). The outdoor air that has flowed into the air supply passage (151) is heated when passing through the use side heat exchanger (161) and then sent to the humidifying element (162). In the humidifying element (162), water vapor that has passed through the moisture permeable membrane is imparted to the air. The air humidified by the humidifying element (162) is supplied into the room through the air supply port (154). The room air that has flowed into the exhaust passage (152) is exhausted to the outside through the exhaust port (156).

    In the humidity control device (10) during the simple ventilation operation, both the operation of the refrigerant circuit (167) and the water supply to the humidifying element (162) are stopped, and only the operation of the air supply fan (157) and the exhaust fan (158) is performed. Done. The outdoor air that has flowed into the air supply passage (151) sequentially passes through the use-side heat exchanger (161) and the humidifying element (162), and then is supplied into the room through the air supply port (154). The room air that has flowed into the exhaust passage (152) is exhausted to the outside through the exhaust port (156).

-Other embodiments-
The present invention may be configured as follows with respect to the above embodiment.

    In the above embodiment, the fan rotation speed is automatically controlled. In addition to the control means for automatically controlling the fan rotation speed, manual control control means for manually setting a plurality of fan rotation speeds is provided. You may make it provide. That is, a function of manually setting the fan rotation speed by providing nine types of fan taps after each operation may be provided.

Further, the reference example, the humidity control system has been described, it may be a ventilator that performs only single pure ventilation operation. That is, even if the first adsorption heat exchanger (51) and the second adsorption heat exchanger (52) are not provided, only the fan (25, 26) is provided and the air passage of the ventilation passage is provided. Good.

    In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or its use.

    As described above, the present invention is useful for a humidity control apparatus for adjusting indoor humidity.

FIG. 1 is a perspective view showing a humidity control apparatus viewed from the front side, with a part of a casing and an electrical component box omitted. FIG. 2 is a schematic plan view, a right side view, and a left side view in which a part of the humidity control apparatus is omitted. FIG. 3 is a piping system diagram showing the configuration of the refrigerant circuit, in which (A) shows the operation during the first operation, and (B) shows the operation during the second operation. FIG. 4 is a schematic plan view, right side view, and left side view of the humidity control apparatus showing the air flow in the first operation of the dehumidifying ventilation operation. FIG. 5 is a schematic plan view, right side view, and left side view of the humidity control apparatus showing the air flow in the second operation of the dehumidifying ventilation operation. FIG. 6 is a schematic plan view, right side view, and left side view of the humidity control apparatus showing the air flow in the first operation of the humidification ventilation operation. FIG. 7 is a schematic plan view, a right side view, and a left side view of the humidity control apparatus showing the air flow in the second operation of the humidification ventilation operation. FIG. 8 is a schematic plan view, right side view, and left side view of the humidity control apparatus showing the air flow in the simple ventilation operation. FIG. 9 is a flowchart showing the operation for determining the fan speed. FIG. 10 is a timing chart showing the operation for determining the fan speed. FIG. 11 is a flowchart showing the operation for adjusting the fan speed. 12A and 12B are schematic configuration diagrams showing the humidity control apparatus of Reference Example 1 , in which FIG. 12A shows the operation during the first operation, and FIG. 12B shows the operation during the second operation. is there. FIG. 13 is a schematic configuration diagram illustrating a humidity control apparatus of Reference Example 2 .

10 Humidity control device
11 Casing
25 Exhaust fan
26 Air supply fan
31 Supply passage
32 Inside air passage
33 Exhaust side passage
34 Outside air passage
35 Exhaust fan room
36 Air supply fan room
37 1st heat exchanger room
38 Second heat exchanger room
50 Refrigerant circuit (humidity control)
51 First adsorption heat exchanger
52 Second adsorption heat exchanger
60 controller
61 Speed control means
62 Speed determination means
63 Speed adjustment means
81 First bypass passage
82 Second bypass passage

Claims (4)

In the casing (11), the humidity control means (50) for absorbing and releasing moisture and the fans (25, 26) are stored,
Ventilation in which at least a plurality of air passages are formed in the casing (11) so as to allow the conditioned air to flow through the humidity control means (50) and the fans (25, 26). A device,
The fan speed of the fan (25, 26) is controlled so that the air volume of at least one of the plurality of air paths becomes a predetermined target air volume, and the fan speed for one air path is set. A rotational speed control means (61) for determining;
The rotational speed for determining the fan rotational speed for the other air passage based on the rotational speed of the fan for the one air passage determined by the rotational speed control means (61) so that the air volume of the other air passage becomes a predetermined target air volume. while Ru and a determining means (62),
The humidity control means (50) includes a first adsorption heat exchanger (51) and a second adsorption heat exchanger (52) each having an adsorbent supported on a surface thereof, and the second adsorption heat exchanger (52). The first adsorption heat exchanger (51) desorbs the moisture and the first adsorption heat exchanger (51) desorbs the moisture, the first adsorption heat exchanger (51) adsorbs the moisture, and the second adsorption heat exchanger (52). And is configured to alternately repeat the second operation for desorbing moisture,
The plurality of air passages include an air supply passage (34, ..., 36) for supplying humidity-conditioned air that has passed through the first adsorption heat exchanger (51) or the second adsorption heat exchanger (52) to the room, Only the exhaust passage (32,..., 35) that discharges the exhaust air that has passed through the second adsorption heat exchanger (52) or the first adsorption heat exchanger (51) to the outside of the room and the fan (25, 26). With ventilation passages (81, 82, ...) through which ventilation air passes,
The rotational speed control means (61), the ventilation passage (81, 82, ...) ventilator, characterized that you determine the fan rotation speed for. Oite to claim 1,
The rotation speed control means (61) integrates the power consumption of the fans (25, 26) until a predetermined time elapses so that the integrated value of the power consumption becomes a required power value of a preset target air volume. A ventilator characterized by determining a fan speed. In claim 1 ,
The rotational speed determining means (62) includes a fan rotational speed for the ventilation passage (81, 82,...), A fan rotational speed for the air supply passage (34,..., 36) and the exhaust passage (32,. Is stored in advance, and the fan speed for the air supply passage (34,..., 36) and the exhaust passage (32,..., 35) is determined based on the relationship. Oite to claim 1,
The ventilator characterized in that the rotational speed control means (61) starts a determining operation when a predetermined instruction is inputted from a stopped state.

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