JP2010281476A - Humidity controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress temperature fluctuation of air supplied to an indoor side in a dehumidifier for performing dehumidifying operation by alternately switching two batch operations. <P>SOLUTION: The dehumidifier (10) includes: first and second adsorption elements (61, 62) which are stored in a casing (11) and on which an adsorbent for adsorbing moisture in the air is supported; a heat exchanger (45) for heating the adsorbent of each of the adsorption elements (61, 62) and cooling, between the two batch operations, the adsorbent of the adsorption element (61, 62) becoming the adsorption side during next batch operation for a predetermined time (t1); a supply air temperature sensor (43) for detecting the temperature of supply air (SA) to the indoor side; and a temperature side time adjusting part (91) for adjusting the length of the cooling time (t1) by the heat exchanger (45) based on the detected temperature by the supply air temperature sensor (43). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

    The present invention relates to a humidity control apparatus, and particularly relates to a device that dehumidifies air alternately by two adsorbing elements.

    Conventionally, a dehumidifying apparatus for dehumidifying a room or the like is widely known. As this dehumidifying apparatus, there is an apparatus that includes two adsorbing elements and dehumidifies air alternately by each adsorbing element.

    Patent Document 1 discloses this type of dehumidifying device. In this dehumidifier, a first adsorbing element and a second adsorbing element are partitioned in an air passage in the casing. The adsorption element is configured by carrying an adsorbent that adsorbs moisture on a base material through which air can flow. In the casing, a condenser (heating means) for heating air is provided on the upstream side of each adsorption element.

    In the dehumidifying device disclosed in Patent Document 1, the following two batch operations are alternately performed. First, in the first batch operation, moisture in the air is adsorbed by the first adsorption element, and the air is dehumidified. The dehumidified air is supplied into the room. In the first batch operation, air heated by the condenser is supplied to the second adsorption element, and the second adsorption element is heated. As a result, moisture is released from the second adsorption element into the air, and the second adsorption element (adsorbent) is regenerated. The air used for the regeneration of the second adsorption element is discharged outside the room. On the other hand, in the second batch operation, moisture in the air is adsorbed by the second adsorption element, and at the same time, the first adsorption element is regenerated. As described above, in this dehumidifying device, the adsorption performance (that is, dehumidification performance) of each adsorption element is achieved by performing so-called batch operation that alternately switches between the first batch operation and the second batch operation at predetermined time intervals. The room can be continuously dehumidified without lowering.

JP 2004-60954 A

    As described above, in the dehumidifying apparatus that alternately performs the two batch operations, in order to release moisture from the regeneration-side adsorption element, the temperature of the adsorption element is increased with air heated by the heating means. For this reason, immediately after switching between the two batch operations described above, the adsorption element that has transitioned from the regeneration side to the adsorption side may still be at a relatively high temperature. As a result, air of relatively high temperature is supplied into the room immediately after the batch operation is switched. As a result, the temperature of the air supplied to the room cannot be kept constant, and the indoor temperature environment is impaired. In addition, it is conceivable to apply the above dehumidifying device to dehumidifying a space where a requirement for temperature control (for example, ± 2 ° C.) with relatively high accuracy is imposed, such as a clean room or a food factory in a semiconductor factory. In this case, if the temperature of the supply air largely fluctuates as described above, the desired temperature control cannot be performed, resulting in a great hindrance to quality control and the like.

    This invention is made in view of such a point, and aims at suppressing the temperature fluctuation of the air supplied indoors in the humidity control apparatus which performs a dehumidification operation by switching two batch operation | movement alternately. To do.

    According to a first aspect of the present invention, there are provided a casing (11) through which air flows and first and second adsorbing members (61, 62) carrying an adsorbent that is accommodated in the casing (11) and adsorbs moisture in the air. ) And a heating mechanism (45) for heating the adsorbent of each adsorbing member (61, 62), adsorbs moisture with the adsorbent of the first adsorbing member (61), and the second adsorbing member (62 ) And the second batch operation of heating the adsorbent of the first adsorbing member (61) while adsorbing moisture with the adsorbent of the second adsorbing member (62). A humidity control apparatus that performs alternately and supplies one of the air that has passed through each adsorbing member (61, 62) to the room as supply air (SA) and discharges the other as discharge air (EA) to the outside. During the two batch operations, the adsorbent of the adsorbing member (61, 62) that becomes the adsorption side during the next batch operation is kept for a predetermined time (t1 ) A cooling mechanism (45) that cools the air, and an air temperature detector (43) that detects the air temperature of at least one of the supply air (SA) to the room or the discharge air (EA) to the outside, A temperature side time controller (91) for adjusting the length of the predetermined time (t1) of the cooling mechanism (45) based on the temperature detected by the air temperature detector (43).

    In the first invention, first, in the first batch operation, the air taken into the casing (11) passes through the first adsorption member (61). When this air passes through the first adsorbing member (61), moisture contained in the air is adsorbed on the adsorbent of the first adsorbing member (61) to become dehumidified air. This dehumidified air is supplied indoors as supply air (SA). At the same time, the air taken into the casing (11) passes through the second adsorption member (62). At this time, the heating mechanism (45) heats the adsorbent of the second adsorbing member (62), and moisture is desorbed from the adsorbent. When the air passes through the second adsorbing member (62), it is supplied with moisture desorbed from the adsorbent of the second adsorbing member (62) and becomes humidified air. This humidified air is discharged out of the room as discharged air.

    The air temperature detector (43) detects the air temperature of either the supply air (SA) or the exhaust air (EA) during the first batch operation. The temperature-side time adjuster (91) adjusts the length of time for cooling the adsorbent based on the detected air temperature. The cooling mechanism (45) is the second batch operation that becomes the adsorption side in the second batch operation over the time adjusted by the temperature side time controller (91) between the first batch operation and the second batch operation. The adsorbent of the adsorbing member (62) is cooled.

    Next, when the first batch operation is switched to the second batch operation, the air taken into the casing (11) passes through the second adsorption member (62). When this air passes through the second adsorbing member (62), moisture contained in the air is adsorbed on the adsorbent of the second adsorbing member (62) to become dehumidified air. This dehumidified air is supplied indoors as supply air (SA). At the same time, the air taken into the casing (11) passes through the first adsorption member (61). At this time, the heating mechanism (45) heats the adsorbent of the first adsorbing member (61), and moisture is desorbed from the adsorbent. When the air passes through the first adsorbing member (61), it is supplied with moisture desorbed from the adsorbent of the first adsorbing member (61) and becomes humidified air. This humidified air is discharged outside the room as exhaust air (EA).

    During the second batch operation, the air temperature detector (43) detects the air temperature of either the supply air (SA) or the exhaust air (EA). The temperature-side time adjuster (91) adjusts the length of time for cooling the adsorbent based on the detected air temperature. Then, the cooling mechanism (45) is the first batch operation that becomes the adsorption side in the first batch operation over the time adjusted by the temperature side time controller (91) between the second batch operation and the first batch operation. The adsorbent of the adsorbing member (61) is cooled.

    In a second aspect based on the first aspect, the temperature side time adjuster (91) is based on a difference between the maximum value and the minimum value of the detected temperature of the air temperature detector (43) in one batch operation. The cooling mechanism (45) is configured to adjust a predetermined time (t1).

    In the second aspect, the air temperature detector (43) detects the air temperature of either supply air (SA) or exhaust air (EA). The temperature side time adjustment unit (91) cools the adsorbent of the adsorbing member (61, 62) based on the difference between the maximum value and the minimum value of the detected temperature of the air temperature detector (43) in one batch operation. Adjust the time. Between the two batch operations, the adsorbent of the adsorbing member (61, 62) on the adsorption side in the next batch operation is cooled over the adjusted time.

    According to a third aspect of the present invention, in the second aspect of the invention, the larger the difference between the maximum value and the minimum value of the detected temperature of the air temperature detector (43) in one batch operation, the longer the predetermined time ( It is configured to lengthen t1).

    In the third aspect, the air temperature detector (43) detects the air temperature of either supply air (SA) or exhaust air (EA). The temperature side time adjustment unit (91) cools the adsorbent of the adsorbing member (61, 62) as the difference between the maximum value and the minimum value of the detected temperature of the air temperature detector (43) in one batch operation increases. Adjust the time to be longer. And between two batch operation | movement, the adsorption agent of the adsorption | suction member (61,62) used as the adsorption | suction side is cooled over the regulated time in the next batch operation.

    According to a fourth aspect of the present invention, there are provided first and second adsorption members (151, 152) carrying an adsorbent that adsorbs moisture in the air, and a first air passage (161) in which the first adsorption member (151) is disposed. And a second air passage (162) in which the second adsorbing member (152) is disposed, and one of the adsorbing members (151, 152) provided in the casing (111) is heated. A temperature adjusting mechanism (150) for cooling the other, a first operation for cooling the adsorbent of the first adsorbing member (151) and heating the adsorbent of the second adsorbing member (152) and the first adsorbing member (151 ), The temperature adjustment switching device (154) for switching between the second operation of cooling the adsorbent of the second adsorbing member (152), the first air passage (161) and the second air passage ( 162) and an air passage switcher (141 to 148) that alternately switches to an air supply path to the room. During the dehumidifying operation in which the air that has passed through the cooling-side adsorption member (151,152) is supplied to the room and the air that has passed through the heating-side adsorption member (151,152) is discharged to the outside of the room, A switching controller (165) is provided that executes the switching operation after a predetermined delay time (t2) has elapsed from the switching operation of the temperature control switching device (154).

    In the fourth aspect of the invention, first, in the first operation, the temperature adjustment mechanism (150) cools the adsorbent of the first adsorbing member (151) and heats the adsorbent of the second adsorbing member (152), while air The passage switchers (141 to 148) connect the first air passage (161) to the air supply path. The air taken into the casing (111) flows into the first air passage (161) and passes through the first adsorption member (151). When the air passes through the first adsorbing member (151), moisture contained in the air is adsorbed to the adsorbent of the first adsorbing member (151), and is supplied into the room as dehumidified air. At the same time, the air taken into the casing (111) flows into the second air passage (162) and passes through the second adsorption member (152). In the second adsorbing member (152), moisture is desorbed from the heated adsorbent. When the air passes through the second adsorbing member (152), it is given moisture desorbed from the adsorbent of the second adsorbing member (152), and is exhausted to the outside as humidified air. The switching regulator (165) is configured to switch the temperature regulation switching device (154) from the first operation to the second operation after a predetermined delay time (t2) has elapsed, and then to the air passage switching device (141 to 148). The connection to the air supply path is switched from the first air passage (161) to the second air passage (162).

    Next, in the second operation, the temperature adjusting mechanism (150) cools the adsorbent of the second adsorbing member (152) and heats the adsorbent of the first adsorbing member (151), while the air passage switch (141˜). 148) connects the second air passage (162) to the air supply path. The air taken into the casing (111) flows into the second air passage (162) and passes through the second adsorption member (152). When the air passes through the second adsorbing member (152), the moisture contained in the air is adsorbed to the adsorbent of the second adsorbing member (152), and is supplied into the room as dehumidified air. At the same time, the air taken into the casing (111) flows into the first air passage (161) and passes through the first adsorption member (151). In the first adsorbing member (151), moisture is desorbed from the heated adsorbent. When the air passes through the first adsorbing member (151), it is given moisture desorbed from the adsorbent of the first adsorbing member (151), and becomes humidified air and is discharged outside the room. The switching regulator (165) passes the air of the air passage switchers (141 to 148) after a predetermined delay time (t2) has elapsed since the temperature regulating mechanism (150) was switched from the second operation to the first operation. The connection to the supply path is switched from the second air passage (162) to the first air passage (161).

    In a fifth aspect based on the fourth aspect, the temperature adjustment mechanism (150) includes a compressor (153) and is configured as a heat medium circuit (150) in which the heat medium fluid circulates. The temperature adjustment switch (154) is configured as a circuit switching mechanism (154) that switches the circulation direction of the heat medium fluid in the heat medium circuit (150), and the switch controller (165) includes the compressor (153). And a frequency-side time adjuster (166) for adjusting the length of the predetermined delay time (t2) based on the operating frequency.

    In the fifth aspect, the heat medium fluid compressed by the compressor (153) circulates in the heat medium circuit (150). In the first operation, the heat medium fluid circulating in the heat medium circuit (150) absorbs heat from the adsorbent of the first adsorbing member (151) and radiates heat to the adsorbent of the second adsorbing member (152). The frequency-side time adjuster (166) adjusts the length of time (t2) for cooling the adsorbent of the second adsorbing member (152) based on the operating frequency of the compressor (153). Then, the adsorbent of the second adsorbing member (152) is cooled for a controlled time between the first operation and the second operation.

    In the second operation, the heat medium fluid circulating in the heat medium circuit (150) absorbs heat from the adsorbent of the second adsorbing member (152) and radiates heat to the adsorbent of the first adsorbing member (151). The frequency side time adjuster (166) adjusts the length of time (t2) for cooling the adsorbent of the first adsorbing member (151) based on the operating frequency of the compressor (153). Then, the adsorbent of the first adsorbing member (151) is cooled for the adjusted time between the second operation and the first operation.

    In a sixth aspect based on the fifth aspect, the frequency side time adjuster (166) is configured to increase the predetermined delay time (t2) as the operating frequency of the compressor (153) increases. Yes.

    In the sixth aspect of the invention, the frequency side time adjustment unit (166) adjusts so that the time for cooling the adsorbent of the adsorbing members (151 and 152) becomes longer as the operating frequency of the compressor (153) is higher. And between two operation | movement, the adsorption agent of the adsorption | suction member (151,152) used as an adsorption | suction side is cooled over the regulated time by the next operation | movement.

    According to a seventh invention, in any one of the fourth to sixth inventions, the first adsorption member (151) is constituted by a first adsorption heat exchanger (151) and the second adsorption member (152). Is constituted by the second adsorption heat exchanger (152).

    In the seventh aspect, in the first operation, the heat medium fluid circulating in the heat medium circuit (150) absorbs heat from the adsorbent in the first adsorption heat exchanger (151), while the second adsorption heat exchanger ( 152) dissipates heat to the adsorbent. In the second operation, the heat medium fluid circulating in the heat medium circuit (150) absorbs heat from the adsorbent in the second adsorption heat exchanger (152), and releases heat to the adsorbent in the first adsorption heat exchanger (151). .

    According to the first aspect of the invention, the adsorbent is cooled over a time adjusted based on the temperature of the supply air (SA) or the exhaust air (EA), and therefore, according to the temperature of the heated adsorbent. Thus, the adsorbent can be cooled. That is, immediately after switching of the batch operation, the temperature of the adsorbent of the adsorbing member (61, 62) that has transitioned from the regeneration side to the adsorption side can be effectively reduced. Thereby, the temperature fluctuation | variation of the air supplied indoors can be suppressed. As a result, temperature control in a clean room or the like of a semiconductor factory can be performed with high accuracy.

    According to the second aspect of the invention, the time for cooling the adsorbent is adjusted based on the temperature difference between the maximum temperature and the minimum temperature of the supply air (SA) or exhaust air (EA) in one batch operation. The cooling time can be adjusted to the minimum necessary time. That is, it is possible to reduce the heating for heating the adsorbent during the batch operation on the regeneration side. That is, it is possible to reduce a reduction in the time for heating the adsorbent during the batch operation on the regeneration side. Thereby, it can reduce that the dehumidification capability of adsorption agent falls.

    According to the third aspect of the invention, the cooling time in the cooling mechanism (45) is increased as the difference between the maximum value and the minimum value of the detected temperature of the air temperature detector (43) in one batch operation increases. Therefore, the adsorbent that has been heated to a high temperature can be reliably cooled. Thereby, the temperature fluctuation | variation of the air supplied indoors can be suppressed. As a result, temperature control in a clean room or the like of a semiconductor factory can be performed with high accuracy.

    According to the fourth aspect of the invention, during the dehumidifying operation, the switching operation of the air passage switch (141 to 148) is executed after a predetermined delay time (t2) has elapsed from the switching operation of the temperature control switch (154). Therefore, the adsorbent of the regeneration side adsorbing member (151, 152) can be cooled during the delay time (t2). Thereby, the temperature fluctuation | variation of the air supplied indoors can be suppressed. As a result, temperature control in a clean room or the like of a semiconductor factory can be performed with high accuracy.

    According to the fifth aspect, since the length of the predetermined delay time (t2) is adjusted based on the operating frequency of the compressor (153), the temperature of the supply air (SA) or the like is not detected. The time for cooling the adsorbent can be set. That is, the adsorbent can be cooled in an appropriate time without using a sensor for detecting the temperature of the air. Thereby, while the temperature fluctuation of the air supplied indoors can be suppressed, the manufacturing cost of a humidity control apparatus can be reduced. As a result, temperature control in a clean room or the like of a semiconductor factory can be performed with high accuracy.

    According to the sixth aspect, since the predetermined delay time (t2) is increased as the operating frequency of the compressor (153) increases, the operating frequency of the compressor (153) increases and the adsorbent is increased. Even if the temperature rises, the adsorbent can be reliably cooled in response to the temperature rise. Thereby, the temperature fluctuation | variation of the air supplied indoors can be suppressed. As a result, temperature control in a clean room or the like of a semiconductor factory can be performed with high accuracy.

    According to the seventh invention, the first adsorption member (151) is constituted by the first adsorption heat exchanger (151), and the second adsorption member (152) is constituted by the second adsorption heat exchanger (152). Thus, the adsorption side and the regeneration side of each adsorption heat exchanger (151, 152) can be easily switched by switching the circulation direction of the heat medium fluid in the heat medium circuit (150).

1 is a schematic perspective view showing an overall configuration of a dehumidifying apparatus according to Embodiment 1. FIG. It is a figure which shows the schematic whole structure of the dehumidification apparatus which concerns on Embodiment 1, Comprising: (A) is a top view, (B) is a left view, (C) is a right view. It is the schematic of a dehumidification apparatus which shows the flow of the air in the 1st batch operation | movement of the dehumidification apparatus which concerns on Embodiment 1, (A) is a top view, (B) is a left view, (C) is It is a right view. It is the schematic of a dehumidification apparatus which shows the flow of air in the 2nd batch operation | movement of the dehumidification apparatus which concerns on Embodiment 1, (A) is a top view, (B) is a left view, (C) is It is a right view. It is the schematic of a dehumidification apparatus which shows the flow of the air in the 1st cooling operation of the dehumidification apparatus which concerns on Embodiment 1, (A) is a top view, (B) is a left view, (C) is It is a right view. It is the schematic of a dehumidification apparatus which shows the flow of the air in the 2nd cooling operation of the dehumidification apparatus which concerns on Embodiment 1, (A) is a top view, (B) is a left view, (C) is It is a right view. It is a graph which shows the relationship between the supply air temperature of the dehumidification apparatus which concerns on Embodiment 1, and time. It is a schematic perspective view which shows the whole structure of the humidity control apparatus which concerns on Embodiment 2. FIG. It is the top view which shows the general whole structure of the humidity control apparatus which concerns on Embodiment 2, a right view, and a left view. It is a piping system diagram which shows the structure of the refrigerant circuit of the humidity control apparatus which concerns on Embodiment 2, Comprising: (A) shows the operation | movement in 1st operation | movement, (B) shows the operation | movement in 2nd operation | movement. Is. It 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 first operation of the dehumidification ventilation operation of the humidity control apparatus according to the second embodiment. FIG. 6 is a schematic plan view, right side view, and left side view of a humidity control apparatus showing an air flow in a second operation of a dehumidifying ventilation operation of the humidity control apparatus according to the second embodiment. It 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 first operation of the humidification ventilation operation of the humidity control apparatus according to the second embodiment. It 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 of the humidity control apparatus according to the second embodiment. It is a graph which shows the relationship between the driving | operation frequency of the compressor which concerns on Embodiment 2, and (DELTA) T2. It is a graph which shows the relationship between the supply air temperature of the humidity control apparatus which concerns on Embodiment 2, and time. FIG. 6 is a plan view, a right side view, and a left side view showing a schematic overall configuration of a humidity control apparatus according to a modification of the second embodiment. 10 is a table showing a relationship between ΔT2 and time (t3) according to a modification of the second embodiment.

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

    In the present embodiment, the humidity control apparatus according to the present invention constitutes a dehumidification apparatus (10). The dehumidifying device (10) performs dehumidification in a clean room of a semiconductor factory or a room in a food factory.

Embodiment 1 of the Invention
As shown in FIG.1 and FIG.2, the dehumidification apparatus (10) which concerns on Embodiment 1 is provided with the dehumidification casing (11) which comprises the casing which concerns on this invention. The dehumidifying casing (11) is formed in a vertically long rectangular parallelepiped shape. The dehumidifying casing (11) has a first panel portion (12) on the front side, a second panel portion (13) on the rear side, a bottom plate portion (14) on the lower side, and a top plate portion (15) on the upper side. Each is formed. Further, the dehumidifying casing (11) is formed with a first side plate (16) on the left side in the width direction and a second side plate (17) on the right side in the width direction. An air passage through which air flows is formed inside the dehumidifying casing (11).

    The first panel portion (12) has a first suction port (20) on the left side and an exhaust port (21) on the right side. In the second panel portion (13), a second suction port (22) is formed on the left side, and an air supply port (23) is formed on the right side. The first suction port (20), the exhaust port (21), the second suction port (22), and the air supply port (23) constitute a duct connection port to which an air duct (not shown) is coupled. The first suction port (20), the exhaust port (21), and the second suction port (22) communicate with the outdoor space via the air duct, and the air supply port (23) communicates with the indoor space via the air duct. Communicated with.

    A first partition plate (31) and a second partition plate (32) stand up in the dehumidifying casing (11). The first partition plate (31) and the second partition plate (32) are in a posture parallel to the first panel portion (12) and the second panel portion (13). The 1st partition plate (31) is located near the 1st panel part (12), and the 2nd partition plate (32) is located near the 2nd panel part (13).

    An exhaust side partition plate (33) is erected between the first panel portion (12) and the first partition plate (31), and a first suction passage (on the left side of the exhaust side partition plate (33)). 25), and an exhaust passage (26) is defined on the right side. The first suction passage (25) communicates with the first suction port (20), and the exhaust passage (26) communicates with the exhaust port (21). An exhaust fan (41) is accommodated in the exhaust passage (26). The exhaust fan (41) is a centrifugal multiblade fan (so-called sirocco fan).

    An air supply side partition plate (34) is erected between the second panel portion (13) and the second partition plate (32), and the second suction is provided on the left side of the air supply side partition plate (34). The passage (27) is divided into an air supply passage (28) on the right side. The second suction passage (27) communicates with the second suction port (22), and the air supply passage (28) communicates with the air supply port (23). An air supply fan (42) and a supply air temperature sensor (43) are accommodated in the air supply passage (28). The air supply fan (42) is a centrifugal multi-blade fan (so-called sirocco fan). The supply air temperature sensor (43) is for measuring the temperature of air (SA) that passes through the supply passage (28) and is supplied from the supply port (23) to the room. This supply air temperature sensor (43) constitutes an air temperature detector according to the present invention. The supply air temperature sensor (43) is provided in the vicinity of the air supply port (23) in the air supply passage (28), and is connected to a dehumidification controller (90) described later. The temperature data measured by the supply air temperature sensor (43) is sent to the dehumidification controller (90) as needed.

    A heat exchanger (45) is accommodated in the second suction passage (27). The heat exchanger (45) is composed of, for example, a plate heat exchanger. An inflow pipe (46) and an outflow pipe (47) are connected to the heat exchanger (45) through the dehumidifying casing (11) (see FIG. 2). This inflow pipe (46) is connected via a three-way valve (85) to a hot water supply pipe (86) through which hot water as a heating medium flows and a cold water supply pipe (87) through which cold water as a cooling medium flows. .

    The three-way valve (85) has three ports. In the three-way valve (85), the beginning of the inflow pipe (46) is connected to the first port, the end of the hot water supply pipe (86) is connected to the second port, and the cold water supply pipe (87 is connected to the third port. ) Terminal is connected. Hot water as a heating medium is supplied to the hot water supply pipe (86), and cold water as a cooling medium is supplied to the cold water supply pipe (87). In addition, this warm water is produced | generated using the waste heat of other heat-source equipment, such as a factory, for example, and cold water is produced | generated using the cooling water of the manufacturing apparatus in a factory etc., for example. The three-way valve (85) has a first state (for example, the state shown in FIG. 3) in which the first port and the second port communicate with each other, It can be switched to a second state (for example, the state shown in FIG. 5) in which the third port communicates. By this switching, the heat exchanger (45) is selectively supplied with hot water for heating the air and cold water for cooling the air. That is, the heat exchanger (45) is temperature adjusting means for heating or cooling air supplied to the adsorption elements (61, 62) described later, and constitutes a cooling mechanism according to the present invention.

    A frame (49) is installed in the second suction passage (27) on the downstream side of the air in the heat exchanger (45). The frame (49) is formed in a plate shape along the heat exchanger (45), and is formed with an air opening through which air that has passed through the heat exchanger (45) can flow.

    A central partition plate (35) is disposed in a horizontal position between the first panel portion (12) and the second panel portion (13), and the first adsorption chamber (35) is disposed above the central partition plate (35). 51), the second adsorption chamber (52) is respectively defined on the lower side of the central partition plate (35). The first adsorption chamber (51) constitutes a first accommodation chamber for accommodating the first adsorption element (61), and the second adsorption chamber (52) is a second accommodation chamber for accommodating the second adsorption element (62). Is configured.

    Each adsorption element (61, 62) has a vertically long rectangular parallelepiped shape extending from the first side plate portion (16) to the second side plate portion (17). In the first adsorption chamber (51), an exhaust side upper passage (53) is defined between the first adsorption element (61) and the first partition plate (31), and the first adsorption element (61) and the second divider are separated. An air supply side upper passage (54) is partitioned between the plate (32). In the second adsorption chamber (52), an exhaust side lower passage (55) is defined between the second adsorption element (62) and the first partition plate (31), and the second adsorption element (62) and the second divider are separated. An air supply side lower passage (56) is partitioned between the plate (32).

    Each adsorption element (61, 62) has a divided structure that is separated at an intermediate position in the longitudinal direction. That is, each adsorption element (61, 62) is composed of two adsorption elements (60, 60) adjacent to the left and right. The adsorbing element (60, 60) is constituted by a base material part through which air can flow in the front-rear direction and an adsorbent carried on the base material part. As the adsorbent for the adsorption element (60, 60), an adsorbent that can adsorb moisture (water vapor) in the air, such as zeolite, silica gel, activated carbon, and an organic polymer material having a hydrophilic functional group, is used. A so-called sorbent may be used as the adsorbent. The first adsorption element (61) constitutes a first adsorption member according to the present invention, while the second adsorption element (62) constitutes a second adsorption member according to the present invention.

    The first partition plate (31) is provided with first to fourth exhaust side dampers (71, 72, 73, 74). Each exhaust side damper (71, 72, 73, 74) constitutes an open / close type damper for intermittently connecting each adsorption chamber (51, 52) with the first suction passage (25) and the exhaust passage (26). is doing. The first partition plate (31) has a first exhaust side damper (71) on the upper left side, a second exhaust side damper (72) on the upper right side, and a third exhaust side damper (73) on the lower left side. Fourth exhaust side dampers (74) are respectively attached to the right side. When the first exhaust side damper (71) is opened and closed, the first suction passage (25) and the exhaust side upper passage (53) are intermittently connected. When the second exhaust side damper (72) is opened and closed, the exhaust passage (26) and the exhaust side upper passage (53) are intermittently connected. When the third exhaust side damper (73) is opened and closed, the first suction passage (25) and the exhaust side lower passage (55) are intermittently connected. When the fourth exhaust side damper (74) is opened and closed, the exhaust passage (26) and the exhaust side lower passage (55) are intermittently connected.

    The second partition plate (32) is provided with fifth to eighth air supply side dampers (75, 76, 77, 78). Each supply side damper (75, 76, 77, 78) is an open / close type damper for intermittently connecting each adsorption chamber (51, 52), the second suction passage (27) and the supply passage (28). Is configured. The second divider plate (32) has a first air supply side damper (75) on the upper left side, a second air supply side damper (76) on the upper right side, and a third air supply side damper (77) on the lower left side. However, the fourth air supply side damper (78) is attached to the lower right side. When the first supply side damper (75) is opened and closed, the second suction passage (27) and the supply side upper passage (54) are intermittently connected. When the second air supply side damper (76) is opened and closed, the air supply passage (28) and the air supply side upper passage (54) are intermittently connected. When the third supply-side damper (77) is opened and closed, the second suction passage (27) and the supply-side lower passage (56) are intermittently connected. When the fourth air supply side damper (78) is opened and closed, the exhaust passage (26) and the air supply side lower passage (56) are intermittently connected.

    Each said damper (71-78) is for switching the flow path of the air which flows through the inside of a dehumidification casing (11). The first air supply side damper (75) and the third air supply side damper (77) are mainly used for introducing the air that has passed through the heat exchanger (45) into the adsorption chambers (51, 52). It constitutes the introduction part.

    Further, the dehumidifying device (10) has a dehumidifying controller (90) (see FIG. 2). The dehumidifying controller (90) controls the start and stop of the exhaust fan (41) and the air supply fan (42), while controlling the opening and closing operations of the dampers (71 to 78), so that the inside of the dehumidifying casing (11) The air flow in the air passage is controlled. Further, the dehumidification controller (90) controls the switching operation between the first state and the second state of the three-way valve (85), thereby switching the heating operation and the cooling operation of the heat exchanger (45). I have control. The dehumidification controller (90) is connected to the supply air temperature sensor (43), and the temperature data of the supply air (SA) measured by the supply air temperature sensor (43) is stored at any time. ). Furthermore, the dehumidification controller (90) has a temperature side time adjustment part (91).

    The temperature side time adjustment unit (91) adjusts the cooling operation time (t1) of the heat exchanger (45) based on the temperature data sent from the supply air temperature sensor (43). The temperature side time regulator which concerns on invention is comprised.

    Specifically, in the temperature side time adjustment unit (91), first, one batch of the temperature data of the indoor supply air (SA) sent from the supply air temperature sensor (43) to the dehumidification controller (90). Temperature data in operation is accumulated. Then, the temperature side time adjustment unit (91) obtains a difference (ΔT2 = Tmax−Tmin) between the maximum temperature (Tmax) and the minimum temperature (Tmin) in one batch operation. For example, if the maximum temperature of supply air (SA) in one batch operation is 30 ° C. and the minimum temperature is 20 ° C., Tmax = 30, Tmin = 20, and ΔT2 = 10. The supply air (SA) temperature is highest immediately after each batch operation is switched, so the maximum temperature (Tmax) in one batch operation is the temperature immediately after the batch operation is switched (immediately after the start of one batch operation). It becomes. Here, in the temperature side time adjustment section (91), an allowable temperature range (ΔT1) of indoor temperature variation is preset. This allowable temperature range (ΔT1) is an allowable range of indoor temperature variation desired by the user with respect to the indoor set temperature. In the first embodiment, the allowable temperature range is set to ± 2 ° C. as an example. The temperature side time adjustment unit (91) sets the cooling operation time (t1) in the heat exchanger (45) according to the difference between ΔT2 and ΔT1. This cooling operation time (t1) is a time required for ΔT2 of the temperature of the supply air (SA) after switching the batch operation to be equal to or less than ΔT1 (ΔT2 ≦ ΔT1), and is a predetermined time (t1) according to the present invention. ). In the first embodiment, as an example, the cooling operation time (t1) is set between 0 seconds and 30 seconds.

    Then, when ΔT2 is higher than ΔT1 (ΔT2> ΔT1), the temperature side time adjustment unit (91) switches the three-way valve (85) to the second state (cooling side) as shown in FIG. After the set cooling operation time (t1) elapses, each damper (71 to 78) is switched from one batch operation to the next batch operation. When the three-way valve (85) is switched to the second state, the adsorbent is cooled by the outdoor air cooled by the heat exchanger (45). The temperature-side time adjustment unit (91) switches the dampers (71 to 78) after the cooling operation time (t1) has elapsed, and at the same time, sets the three-way valve (85) to the first state (heating side) again. Switch to. Further, the larger the difference between ΔT2 and ΔT1, the longer the cooling operation time (t1), and the switching operation of each damper (71 to 78) is delayed from the switching operation of the three-way valve (85). That is, the cooling operation time (t1) is changed according to the difference between ΔT2 and ΔT1. On the other hand, when ΔT2 is lower than ΔT1 (ΔT2 <ΔT1), the dampers (71 to 78) are switched from one batch operation to the next batch operation without switching the three-way valve (85).

-Driving action-
A dehumidifying operation of the dehumidifying device (10) of the first embodiment will be described. In the dehumidifying operation, the exhaust fan (41) and the air supply fan (42) are each in an operating state. In the dehumidifying operation, outdoor air (OA) as first air (air represented by a black arrow in FIG. 3, the same applies hereinafter) is taken into the dehumidifying casing (11) from the first suction port (20), and the second air Outdoor air (OA) as air (air represented by a white arrow in FIG. 3, the same applies hereinafter) is taken into the dehumidifying casing (11) from the second suction port (22). In the dehumidifying operation, the following first batch operation and second batch operation are performed alternately by switching the open / close state of the dampers (71 to 78). In the first batch operation and the second batch operation of the first embodiment, the three-way valve (85) is set to the first state, and hot water is supplied from the hot water supply pipe (86) to the heat exchanger (45). . In addition, switching between the first batch operation and the second batch operation is performed every time (for example, about 5 to 10 minutes) preset in the dehumidification controller (90). In each drawing for explaining the operation of the dehumidifier (10), hatching is added to the damper in the closed state, and the damper in the open state is shown in white.

<First batch operation>
As shown in FIG. 3, in the first batch operation, the second exhaust side damper (72), the third exhaust side damper (73), the first supply side damper (75), and the fourth supply side damper (78 ) Is closed, and the first exhaust side damper (71), the fourth exhaust side damper (74), the second supply side damper (76), and the third supply side damper (77) are opened.

    The first air taken into the first suction passage (25) from the first suction port (20) flows into the first adsorption chamber (51) from the first exhaust side damper (71). The air that has flowed into the first adsorption chamber (51) passes through the first adsorption element (61). In the first adsorption element (61), moisture (water vapor) contained in the air is adsorbed by the adsorbent. As a result, in the first adsorption element (61), air is dehumidified by such an adsorption operation. The air dehumidified by the first adsorption element (61) flows out from the second supply side damper (76) to the supply passage (28) and is supplied indoors as supply air (SA).

    The second air taken into the second suction passage (27) from the second suction port (22) passes through the heat exchanger (45). In the heat exchanger (45), the hot water and air exchange heat, and the air is heated to about 60 ° C. The air heated by the heat exchanger (45) flows into the second adsorption chamber (52) from the third supply side damper (77). The air flowing into the second adsorption chamber (52) passes through the second adsorption element (62). The adsorbent of the second adsorption element (62) is heated by air. As a result, in the second adsorption element (62), the moisture adsorbed by the adsorbent by such a regeneration operation is released into the air. The air deprived of moisture from the second adsorbing element (62) flows out from the fourth exhaust side damper (74) to the exhaust passage (26) and is discharged to the outside as exhaust air (EA).

<Second batch operation>
As shown in FIG. 4, in the second batch operation, the first exhaust side damper (71), the fourth exhaust side damper (74), the second supply side damper (76), and the third supply side damper (77) ) Is closed, and the second exhaust side damper (72), the third exhaust side damper (73), the first supply side damper (75), and the fourth supply side damper (78) are opened.

    The first air taken into the first suction passage (25) from the first suction port (20) flows into the second adsorption chamber (52) from the third exhaust side damper (73). The air flowing into the second adsorption chamber (52) passes through the second adsorption element (62). In the second adsorption element (62), moisture (water vapor) contained in the air is adsorbed by the adsorbent. As a result, in the second adsorption element (62), air is dehumidified by such an adsorption operation. The air dehumidified by the second adsorption element (62) flows out from the fourth supply side damper (78) to the supply passage (28) and is supplied indoors as supply air (SA).

    The second air taken into the second suction passage (27) from the second suction port (22) passes through the heat exchanger (45). In the heat exchanger (45), the hot water and air exchange heat, and the air is heated to about 60 ° C. The air heated by the heat exchanger (45) flows into the first adsorption chamber (51) from the first supply side damper (75). The air that has flowed into the first adsorption chamber (51) passes through the first adsorption element (61). The adsorbent of the first adsorbing element (61) is heated by air. As a result, in the first adsorption element (61), the moisture adsorbed on the adsorbent by such a regeneration operation is released into the air. The air deprived of moisture from the first adsorption element (61) flows out from the second exhaust side damper (72) to the exhaust passage (26) and is discharged to the outside as exhaust air (EA).

<Cooling operation>
In the dehumidifying apparatus (10) of Embodiment 1, moisture is saturated by the adsorbent of each adsorption element (61, 62) by alternately performing the first batch operation and the second batch operation (adsorption breakage). The room can be dehumidified continuously without becoming excessive. However, if the two operations (batch operations) are switched in this way, immediately after switching between the batch operations, the adsorption elements (61, 62) that have transitioned from the regeneration side to the adsorption side are still relatively hot. There may be. As a result, there is a problem that air of relatively high temperature is supplied into the room as supply air (SA) immediately after switching between batch operations.

    Specifically, in the dehumidifying operation, for example, when switching from the first batch operation to the second batch operation, immediately before the end of the first batch operation, the second adsorbing element (62) that becomes the regeneration side in the first batch operation. Is raised to about 60 ° C. In this state, when the next second batch operation is performed, the second adsorption element (62) transitioning to the adsorption side is still at a high temperature, and passes through the high temperature second adsorption element (62). Air is supplied to the room. As a result, immediately after the second batch operation, the temperature of the supply air (SA) becomes relatively high, and then the second adsorption element (62) is cooled and supplied as the second batch operation is continued. The temperature of air (SA) is getting lower.

    As described above, in the dehumidifying operation, the supply air (SA) reaches the maximum temperature immediately after the start of each batch operation, and the supply air (SA) decreases as the batch operation continues. For this reason, in the dehumidifying operation, the temperature fluctuation of the supply air (SA) becomes large, and the indoor temperature cannot be kept constant. As a result, the temperature environment in a clean room of a semiconductor factory, a food factory, or the like is impaired, resulting in a problem that the quality control is hindered. Therefore, in the first embodiment, the following cooling operation is performed between the first batch operation and the second batch operation to suppress the temperature fluctuation of the supply air (SA). Yes.

(First cooling operation)
The first cooling operation is performed between the first batch operation and the second batch operation when switching from the first batch operation to the second batch operation is performed. In the first cooling operation, the second adsorbing element (62) which becomes the regeneration side in the first batch operation immediately before and becomes the adsorbing side in the next second batch operation is set as the cooling target, and this second adsorbing element (62) is The cooling operation is performed. In the first cooling operation, air is continuously dehumidified in the first adsorption element (61) on the adsorption side in the immediately preceding first batch operation. That is, in the first cooling operation, the air dehumidified by the first adsorption element (61) is supplied into the room as supply air (SA), as in the first batch operation described above.

    Specifically, as shown in FIG. 7, when the first batch operation is started, the temperature side time adjustment unit (91) of the dehumidification controller (90) performs the supply air temperature sensor (43) during the first batch operation. Accumulated supply air (SA) temperature data measured in. The temperature side time adjustment unit (91) obtains ΔT2 which is the difference between the maximum temperature (Tmax) and the minimum temperature (Tmin) of the supply air (SA) in the first batch operation, and this ΔT2 and ΔT1 (set in advance) The cooling operation time (t1) is determined according to the difference from the above. When a predetermined time (for example, 5 minutes) has elapsed since the start of the first batch operation, the three-way valve (85) is switched during the first batch operation to perform the first cooling operation. In the first cooling operation, as shown in FIG. 5, the three-way valve (85) is switched from the first state to the second state by the dehumidification controller (90). As a result, cold water is supplied to the heat exchanger (45) from the cold water supply pipe (87). In the first cooling operation, the state of each damper (71 to 78) is maintained from the first batch operation, and the exhaust fan (41) and the air supply fan (42) are also continued from the first batch operation. The operation state remains unchanged (see FIGS. 3 and 5).

    In the first cooling operation, outdoor air (OA) as first air continues from the first batch operation and flows through the first adsorption element (61), and the air is dehumidified by the first adsorption element (61). The air dehumidified by the first adsorption element (61) is supplied indoors as supply air (SA).

    In the first cooling operation, the outdoor air (OA) as the second air is cooled when passing through the heat exchanger (45) supplied with cold water. And the cooling air which passed the heat exchanger (45) flows through a 2nd adsorption | suction element (62). The air flowing through the second adsorption element (62) has a lower temperature than the first batch operation. For this reason, the second adsorption element (62) is cooled by releasing heat into the air. The air used for cooling the second adsorption element (62) flows out from the fourth exhaust side damper (74) to the exhaust passage (26) and is discharged to the outside as exhaust air (EA).

    When the cooling operation time (t1) (for example, 5 seconds) has elapsed since the start of the first cooling operation, the above-described second batch operation is started. Immediately after the start of the second batch operation, the second adsorption element (62) on the adsorption side in the second batch operation is cooled in advance by the first cooling operation. For this reason, immediately after the start of the second batch operation, the supply air (SA) that passes through the second adsorption element (62) and is supplied into the room is prevented from becoming a high temperature. As a result, the temperature fluctuation of the supply air (SA) in the second batch operation is suppressed. When the first cooling operation is completed, the open / close state of each damper (71 to 78) is switched, and at the same time, the three-way valve (85) is switched from the second state to the first state to perform the second batch operation.

(Second cooling operation)
The second cooling operation is performed between the second batch operation and the first batch operation when switching from the second batch operation to the first batch operation is performed. In the second cooling operation, the first adsorption element (61) which becomes the regeneration side in the immediately preceding second batch operation and becomes the adsorption side in the next first batch operation is the cooling target, and the first adsorption element (61) is The cooling operation is performed. In the second cooling operation, air is dehumidified continuously by the second adsorption element (62) on the adsorption side in the immediately preceding second batch operation. That is, in the second cooling operation, the air dehumidified by the second adsorption element (62) is supplied into the room as supply air (SA), as in the second batch operation described above.

    Specifically, when a predetermined time (for example, 5 minutes) has elapsed since the start of the second batch operation, the three-way valve (85) is switched during the second batch operation to perform the second cooling operation. In the second cooling operation, as shown in FIG. 6, the three-way valve (85) is switched from the first state to the second state by the dehumidification controller (90). As a result, cold water is supplied to the heat exchanger (45) from the cold water supply pipe (87). In the second cooling operation, the state of each damper (71 to 78) is maintained from the second batch operation, and the exhaust fan (41) and the air supply fan (42) are also continued from the second batch operation. The operation state remains unchanged (see FIGS. 4 and 6).

    In the second cooling operation, outdoor air (OA) as the first air continues to flow from the second adsorption element (62) from the second batch operation, and the air is dehumidified by the second adsorption element (62). The air dehumidified by the second adsorption element (62) is supplied into the room as supply air (SA).

    In the second cooling operation, the outdoor air (OA) as the second air is cooled when passing through the heat exchanger (45) supplied with cold water. And the cooling air which passed the heat exchanger (45) flows through a 1st adsorption | suction element (61). The air flowing through the first adsorption element (61) has a lower temperature than the second batch operation. Therefore, the first adsorption element (61) is cooled by releasing heat to the air. The air used for cooling the first adsorption element (61) flows out from the second exhaust side damper (72) to the exhaust passage (26) and is discharged to the outside as exhaust air (EA).

    When the cooling operation time (t1) (for example, 5 seconds) has elapsed since the start of the second cooling operation, the first batch operation described above is started. Immediately after the start of the first batch operation, the first adsorption element (61) on the adsorption side in the first batch operation is cooled in advance by the second cooling operation. For this reason, immediately after the start of the first batch operation, the supply air (SA) that passes through the first adsorption element (61) and is supplied into the room is prevented from becoming a high temperature. As a result, the temperature fluctuation of the supply air (SA) in the first batch operation is also suppressed. When the second cooling operation is completed, the open / close state of each damper (71 to 78) is switched, and at the same time, the three-way valve (85) is also switched from the second state to the first state to perform the first batch operation.

    In the first embodiment, the cooling operation time (t1) is obtained based on the temperature of the supply air (SA) during the first batch operation. However, the cooling operation time (t1) is during the second batch operation. The cooling operation time (t1) may be obtained based on the supply air (SA) at.

-Effect of Embodiment 1-
According to the first embodiment, since the adsorbent is cooled over the cooling operation time (t1) adjusted based on the temperature of the supply air (SA) of the dehumidifier (10), the heated adsorption The adsorbent can be cooled according to the temperature of the agent. That is, it is possible to effectively reduce the temperature of the adsorbent of the adsorbing elements (61, 62) that have transitioned from the regeneration side to the adsorption side immediately after switching of each batch operation. In addition, the cooling operation time (t1) is adjusted based on the temperature difference (ΔT2) between the maximum temperature (Tmax) of the supply air (SA) and the indoor set temperature (Tmin) in one batch operation. The cooling operation time (t1) can be adjusted to the minimum necessary time. That is, in one batch operation on the regeneration side, it is possible to reduce a decrease in time for heating the adsorbent. Thereby, it can reduce that the dehumidification capability of adsorption agent falls. Furthermore, the cooling operation time (t1) is increased as the difference (ΔT2) between the maximum temperature (Tmax) detected by the supply air temperature sensor (43) in one batch operation and the indoor set temperature (Tmin) increases. Therefore, the adsorbent that has been reheated and heated to a high temperature can be reliably cooled. As a result, temperature fluctuations of the air (SA) supplied to the room can be suppressed. As a result, temperature control in a clean room or the like of a semiconductor factory can be performed with high accuracy.

<Embodiment 2 of the invention>
In this Embodiment 2, it replaces with the dehumidification apparatus (10) of the said Embodiment 1, and the humidity control apparatus of this invention comprises a humidity control apparatus (110). The humidity control apparatus (110) according to the second embodiment performs indoor ventilation as well as indoor humidity control. The humidity of the outdoor air (OA) taken in is adjusted and supplied to the room at the same time. (RA) is discharged outside the room.

<Overall configuration of humidity control device>
The humidity control device (110) will be described with reference to FIGS. 8 and 9 as appropriate. Unless otherwise specified, “upper”, “lower”, “left”, “right”, “front”, “rear”, “front”, and “back” used in the description here refer to the humidity control device (110) from the front side. It means the direction when viewed.

    The humidity control device (110) includes a humidity control casing (111). The humidity control casing (111) houses a refrigerant circuit (150) that is a temperature adjustment mechanism. As shown in FIG. 10, the refrigerant circuit (150) includes a first adsorption heat exchanger (151) as a first adsorption member, a second adsorption heat exchanger (152) as a second adsorption member, and a compressor. (153), a four-way switching valve (154), which is a temperature control switching device, and an electric expansion valve (155) are connected. Details of the refrigerant circuit (150) will be described later.

    The humidity control casing (111) is formed in a rectangular parallelepiped shape that is slightly flat and relatively low in height. In the humidity control casing (111) shown in FIG. 8, the left front side (ie, front side) is the front panel (112), and the right back side (ie, back) is the back panel (113). The side surface is the first side panel portion (114), and the left back side surface is the second side panel portion (115).

    The humidity control casing (111) has an outside air inlet (124), an inside air inlet (123), an air inlet (122), and an exhaust port (121). The outside air inlet (124) and the inside air inlet (123) are open to the back panel portion (113). The outside air inlet (124) is arranged in the lower part of the back panel (113). The inside air suction port (123) is arranged in the upper part of the back panel portion (113). The air supply port (122) is disposed near the end of the first side panel (114) on the front panel (112) side. The exhaust port (121) is disposed near the end of the second side panel (115) on the front panel (112) side.

    The internal space of the humidity control casing (111) includes an upstream divider plate (171), a downstream divider plate (172), a central divider plate (173), a first divider plate (174), and a second divider. A plate (175) is provided. These partition plates (171 to 175) are all erected on the bottom plate of the humidity control casing (111), and the internal space of the humidity control casing (111) is changed from the bottom plate of the humidity control casing (111) to the top plate. It is divided across.

    The upstream divider plate (171) and the downstream divider plate (172) are parallel to the front panel portion (112) and the rear panel portion (113) and have a predetermined interval in the front-rear direction of the humidity control casing (111). Arranged. The upstream divider plate (171) is disposed closer to the rear panel portion (113). The downstream partition plate (172) is disposed closer to the front panel portion (112).

    The first partition plate (174) and the second partition plate (175) are installed in a posture parallel to the first side panel portion (114) and the second side panel portion (115). The first partition plate (174) is spaced from the first side panel (114) by a predetermined distance so as to close the space between the upstream partition plate (171) and the downstream partition plate (172) from the right side. Has been placed. The second partition plate (175) is spaced from the second side panel (115) by a predetermined distance so as to close the space between the upstream partition plate (171) and the downstream partition plate (172) from the left side. Has been placed.

    The central partition plate (173) is disposed between the upstream partition plate (171) and the downstream partition plate (172) in a posture orthogonal to the upstream partition plate (171) and the downstream partition plate (172). Yes. The central partition plate (173) is provided from the upstream partition plate (171) to the downstream partition plate (172), and the space between the upstream partition plate (171) and the downstream partition plate (172) is left and right. It is divided into.

    In the humidity control casing (111), the space between the upstream divider plate (171) and the back panel (113) is divided into two upper and lower spaces, and the upper space defines the inside air passage (132). The lower space constitutes the outside air passage (134). The inside air passage (132) communicates with the room through a duct connected to the inside air inlet (123). An inside air filter (127) and an inside air humidity sensor (196) are installed in the inside air passage (132). The outside air passage (134) communicates with the outdoor space via a duct connected to the outside air inlet (124). An outside air filter (128) and an outside air humidity sensor (197) are installed in the outside air passage (134).

    The space between the upstream divider plate (171) and the downstream divider plate (172) in the humidity control casing (111) is divided into left and right by the central divider plate (173). The space on the right side constitutes the first heat exchanger chamber (137), and the space on the left side of the central partition plate (173) constitutes the second heat exchanger chamber (138). A first adsorption heat exchanger (151) is accommodated in the first heat exchanger chamber (137). The second adsorption heat exchanger (152) is accommodated in the second heat exchanger chamber (138). Although not shown, the first heat exchanger chamber (137) accommodates the electric expansion valve (155) of the refrigerant circuit (150).

    Each adsorption heat exchanger (151,152) is a so-called cross fin type fin-and-tube heat exchanger having an adsorbent supported on the surface thereof, and is formed into a rectangular thick plate shape or a flat rectangular parallelepiped shape as a whole. Is formed. Each adsorption heat exchanger (151,152) is erected in the heat exchanger chamber (137,138) with its front and back surfaces parallel to the upstream partition plate (171) and the downstream partition plate (172). Yes. As the adsorbent, those capable of adsorbing moisture (water vapor) in the air, such as zeolite, silica gel, activated carbon, and organic polymer material having a hydrophilic functional group, are used. A so-called sorbent may be used as the adsorbent.

    In the internal space of the humidity control casing (111), the space along the front surface of the downstream partition plate (172) is partitioned vertically, and the upper space of the vertically partitioned space is the air supply side. A passage (131) is formed, and a lower space forms an exhaust side passage (133).

    The upstream divider plate (171) is provided with four open / close dampers (141 to 144). Each damper (141-144) is formed in the shape of a substantially horizontally long rectangle. Specifically, in a portion (upper portion) of the upstream divider plate (171) facing the indoor air passage (132), the first indoor air damper (141) is attached to the right side of the central divider plate (173). The second inside air damper (142) is attached to the left side of the central partition plate (173). Further, the first outside air damper (143) is attached to the right side of the central partition plate (173) in the portion (lower side) facing the outside air passage (134) in the upstream divider plate (171), A second outside air damper (144) is attached to the left side of the central partition plate (173).

    The downstream partition plate (172) is provided with four open / close dampers (145 to 148). Each damper (145-148) is formed in the shape of a substantially horizontally long rectangle. Specifically, in the portion (upper portion) facing the supply side passageway (131) in the downstream side partition plate (172), the first supply side damper (145) is located on the right side of the central partition plate (173). The second air supply side damper (146) is attached to the left side of the central partition plate (173). In addition, the first exhaust side damper (147) is attached to the right side of the central partition plate (173) in the portion (lower portion) facing the exhaust side passageway (133) in the downstream side partition plate (172), A second exhaust side damper (148) is attached to the left side of the central partition plate (173). The eight dampers (141 to 148) constitute an air passage switch according to the present invention.

    In the humidity control casing (111), the space between the air supply side passage (131) and the exhaust side passage (133) and the front panel portion (112) is divided into left and right by a partition plate (177), The space on the right side of the partition plate (177) constitutes the air supply fan chamber (136), and the space on the left side of the partition plate (177) constitutes the exhaust fan chamber (135).

    In the above configuration, the inside air side passage (132), the outside air side passage (134), the air supply side passage (131), and the exhaust side passage (133) include an air passage from the outside to the room and an air passage from the room to the outside. The two air passages constitute a first air passage (161) and a second air passage (162). Then, four dampers are respectively included on the first air passage (161) side and the second air passage (162) side, and air flows in the first air passage (161) and the second air passage (162). The path is configured to be switched by the dampers (141 to 148).

    An air supply fan (126) is accommodated in the air supply fan chamber (136). An exhaust fan (125) is accommodated in the exhaust fan chamber (135). The supply fan (126) and the exhaust fan (125) are both centrifugal multiblade fans (so-called sirocco fans). The air supply fan (126) blows out the air sucked from the downstream partition plate (172) side to the air supply port (122). The exhaust fan (125) blows out the air sucked from the downstream partition (172) side to the exhaust port (121).

    The supply fan chamber (136) accommodates the compressor (153) of the refrigerant circuit (150) and the four-way switching valve (154). The compressor (153) and the four-way selector valve (154) are disposed between the air supply fan (126) and the partition plate (177) in the air supply fan chamber (136).

    In the humidity control casing (111), the space between the first partition (174) and the first side panel (114) constitutes a first bypass passage (181). The starting end of the first bypass passage (181) communicates only with the outside air passage (134) and is blocked from the inside air passage (132). The terminal end of the first bypass passage (181) is partitioned by a partition plate (178) from an air supply side passage (131), an exhaust side passage (133), and an air supply fan chamber (136). A first bypass damper (183) is provided in a portion of the partition plate (178) facing the supply fan chamber (136).

    In the humidity control casing (111), a space between the second partition (175) and the second side panel (115) constitutes a second bypass passage (182). The starting end of the second bypass passage (182) communicates only with the inside air passage (132) and is blocked from the outside air passage (134). The terminal end of the second bypass passage (182) is partitioned from the supply side passage (131), the exhaust side passage (133), and the exhaust fan chamber (135) by a partition plate (179). A second bypass damper (184) is provided in a portion of the partition plate (179) facing the exhaust fan chamber (135).

    9, the first bypass passage (181), the second bypass passage (182), the first bypass damper (183), and the second bypass damper (184) are illustrated. Is omitted.

<Configuration of refrigerant circuit>
As shown in FIG. 10, the refrigerant circuit (150) includes a first adsorption heat exchanger (151), a second adsorption heat exchanger (152), a compressor (153), a four-way switching valve (154), and an electric motor It is a closed circuit provided with an expansion valve (155). The refrigerant circuit (150) performs a vapor compression refrigeration cycle by circulating the filled refrigerant. The refrigerant circuit (150) constitutes a heat medium circuit according to the present invention.

    In the refrigerant circuit (150), the compressor (153) has its discharge side connected to the first port of the four-way selector valve (154) and its suction side connected to the second port of the four-way selector valve (154). ing. In the refrigerant circuit (150), the first adsorption heat exchanger (151), the electric expansion valve (155), and the second adsorption heat exchanger (152) are connected to the third port of the four-way switching valve (154). To the fourth port in order.

    The compressor (153) is a closed type and a high pressure dome type. Specifically, the compressor (153) is configured by housing a scroll-type compression mechanism and an electric motor that drives the compression mechanism in a cylindrical housing (not shown). An inverter is connected to the electric motor of the compressor (153). This inverter supplies control electric power having a predetermined output frequency to the electric motor. The rotational speed of the electric motor is determined by the supplied AC frequency, and as a result, the operating capacity of the compressor (153) is set. When the capacity of the compressor (153) is changed, the circulation amount of the refrigerant in the refrigerant circuit (150) changes accordingly, and thereby the cooling capacity of the first and second adsorption heat exchangers (151 and 152) changes. The compressor (153) is connected to the humidity controller (165), and the output frequency of the inverter is controlled by the humidity controller (165).

    The four-way selector valve (154) has a first humidity control state (state shown in FIG. 10A) 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 humidity control state (state shown in FIG. 10 (B)) in which the first port and the fourth port communicate with each other and the second port and the third port communicate with each other can be switched.

    In the refrigerant circuit (150), a pipe connecting the discharge side of the compressor (153) and the first port of the four-way selector valve (154) includes a high pressure sensor (191) and a discharge pipe temperature sensor (193). And are attached. The high pressure sensor (191) measures the pressure of the refrigerant discharged from the compressor (153). The discharge pipe temperature sensor (193) measures the temperature of the refrigerant discharged from the compressor (153).

    In the refrigerant circuit (150), a pipe connecting the suction side of the compressor (153) and the second port of the four-way switching valve (154) includes a low pressure sensor (192), a suction pipe temperature sensor ( 194) is attached. The low pressure sensor (192) measures the pressure of the refrigerant sucked into the compressor (153). The suction pipe temperature sensor (194) measures the temperature of the refrigerant sucked into the compressor (153).

    In the refrigerant circuit (150), a pipe temperature sensor (195) is attached to a pipe connecting the third port of the four-way switching valve (154) and the first adsorption heat exchanger (151). The pipe temperature sensor (195) is disposed in the vicinity of the four-way switching valve (154) in this pipe and measures the temperature of the refrigerant flowing in the pipe.

    To summarize the configuration of the humidity control apparatus (110) of the second embodiment described above, the first adsorption heat exchanger (151) as the first adsorption member carrying the adsorbent in the humidity control casing (111). ) And a second air passage (162) in which a second adsorption heat exchanger (152) as a second adsorption member carrying the adsorbent is arranged. ing. In the humidity control casing (111), the refrigerant circuit (150) is provided as a temperature adjusting mechanism for heating or cooling each adsorption heat exchanger (151, 152).

    Further, in the humidity control casing (111), the first adsorption heat exchanger (151) is heated to cool the second adsorption heat exchanger (152) and the first adsorption heat exchanger (151). , The four-way switching valve (154) constituting the temperature control switching device for switching the second operation for heating the second adsorption heat exchanger (152), the first air passage (161) and the second air passage Dampers (141 to 148) are provided as air passage switchers that alternately switch (162) to the indoor air supply path.

    The refrigerant circuit (150) is provided with a four-way switching valve (154) as a switching mechanism capable of reversibly switching the refrigerant circulation direction. The four-way switching valve (154) constitutes a circuit switching mechanism according to the present invention.

    As shown in FIGS. 9 and 10, the humidity control apparatus (110) has a humidity control controller (165) as its control means. The humidity controller (165) supplies the air that has passed through the cooling-side adsorption heat exchanger (152,151) to the room, and discharges the air that has passed through the heating-side adsorption heat exchanger (151,152) to the outside, which will be described later. During the ventilation operation, the switching operation of the air passages (161, 162) by the dampers (141-148) based on the operating frequency of the compressor (153) is changed to the refrigerant circulation of the refrigerant circuit (150) by the four-way switching valve (154). This is executed after a predetermined delay time (t2) has elapsed from the direction switching operation, and constitutes a switching regulator according to the present invention. The humidity controller (165) is connected to the compressor (153), and the humidity controller (165) controls the output frequency of the inverter. Furthermore, the humidity controller (165) has a frequency side time adjustment unit (166).

    The frequency side time adjustment unit (166) controls the cooling operation in each adsorption heat exchanger (151, 152) based on the output frequency of the inverter of the compressor (153), and the frequency side time according to the present invention It constitutes a time adjuster. Specifically, the frequency side time adjustment unit (166) is connected to the dampers (141 to 148) and the four-way switching valve (154). When the operating frequency of the compressor (153) is the operating frequency during normal operation (state A in FIG. 15), the frequency side time adjustment unit (166) has a predetermined delay time (t2) ( For example, about 5 seconds) is set. Then, as shown in FIG. 16, the humidity controller (165) obtains a predetermined delay time (t2) (about 5 seconds) from the switching operation of the adsorption heat exchanger (151, 152) by the four-way switching valve (154). After the passage, the air passages (161, 162) are switched by the dampers (141-148). On the other hand, the compressor (153) appropriately changes its operating frequency according to the indoor air conditioning load. When the air conditioning load in the room increases, the operating frequency of the compressor (153) is set to an operating frequency higher than the above-described A state (B state in FIG. 15). At this time, as the operating frequency of the compressor (153) increases, the difference (ΔT2 = Tmax-Tmin) between the maximum temperature (Tmax) and the minimum temperature (Tmin) in one batch operation during dehumidification ventilation operation is Get higher. Therefore, when the operating frequency of the compressor (153) is in the B state, the predetermined delay time (t2) is lengthened (for example, about 10 seconds). Then, as shown in FIG. 16, the humidity controller (165) obtains a predetermined delay time (t2) (about 10 seconds) from the switching operation of the adsorption heat exchanger (151, 152) by the four-way switching valve (154). After the passage, the air passages (161, 162) are switched by the dampers (141-148). When the operating frequency of the compressor (153) is set higher than the B state, the frequency side time adjustment unit (166) further increases the predetermined delay time (t2) according to the increase in the operating frequency.

-Driving action-
The humidity control apparatus (110) of the second embodiment selectively performs a dehumidification ventilation operation (dehumidification operation), a humidification ventilation operation (humidification operation), and a simple ventilation operation. The humidity control device (110) during dehumidification ventilation operation or humidification ventilation operation adjusts the humidity of the taken outdoor air (OA) to the room as supply air (SA) and at the same time takes in the indoor air (RA). To the outside as exhaust air (EA). On the other hand, the humidity control device (110) 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 it is as exhaust air (EA). To be discharged outside the room.

<Dehumidification ventilation operation>
In the humidity control apparatus (110) 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 (183) and the second bypass damper (184) are always closed.

    In the humidity control device (110) during the dehumidifying ventilation operation, the outdoor air (OA) is taken as the first air from the outside air inlet (124) into the humidity control casing (111), and the room air (RA) is taken as the inside air inlet. (123) is taken into the humidity control casing (111) as the second air.

    First, the first operation of the dehumidifying ventilation operation will be described. As shown in FIG. 11, during the first operation, the first inside air side damper (141), the second outside air side damper (144), the second air supply side damper (146), and the first exhaust side damper ( 147) is opened, and the second inside air damper (142), the first outside air damper (143), the first supply air damper (145), and the second exhaust air damper (148) are closed. In the refrigerant circuit (150) during the first operation, the four-way switching valve (154) is set to the first humidity control state (the state shown in FIG. 10A), and the first adsorption heat exchanger (151 ) Becomes a condenser, and the second adsorption heat exchanger (152) becomes an evaporator.

    The first air that has flowed into the outside air passage (134) and passed through the outside air filter (128) flows into the second heat exchanger chamber (138) through the second outside air damper (144), and then It passes through the second adsorption heat exchanger (152). In the second adsorption heat exchanger (152), 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 (152) flows into the supply air passage (131) through the second supply air damper (146) and passes through the supply air fan chamber (136). Later, the air is supplied into the room through the air supply port (122).

    On the other hand, the second air that has flowed into the inside air passage (132) and passed through the inside air filter (127) flows into the first heat exchanger chamber (137) through the first inside air damper (141), Thereafter, it passes through the first adsorption heat exchanger (151). In the first adsorption heat exchanger (151), 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 by the first adsorption heat exchanger (151) flows into the exhaust side passage (133) through the first exhaust side damper (147) and passes through the exhaust fan chamber (135). It is discharged to the outside through the exhaust port (121).

    Next, the second operation of the dehumidifying ventilation operation will be described. As shown in FIG. 12, during the second operation, the second inside air side damper (142), the first outside air side damper (143), the first air supply side damper (145), and the second exhaust side damper ( 148) is in the open state, and the first inside air damper (141), the second outside air damper (144), the second air supply side damper (146), and the first exhaust side damper (147) are in the closed state. In the refrigerant circuit (150) during the second operation, the four-way selector valve (154) is set to the second humidity control state (the state shown in FIG. 10B), and the first adsorption heat exchanger (151 ) Becomes an evaporator, and the second adsorption heat exchanger (152) becomes a condenser.

    The first air that has flowed into the outside air passage (134) and passed through the outside air filter (128) flows into the first heat exchanger chamber (137) through the first outside air damper (143), and thereafter Passes through the first adsorption heat exchanger (151). In the first adsorption heat exchanger (151), 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 first adsorption heat exchanger (151) flows into the supply air passage (131) through the first supply air damper (145) and passes through the supply air fan chamber (136). Later, the air is supplied into the room through the air supply port (122).

    On the other hand, the second air that has flowed into the inside air passage (132) and passed through the inside air filter (127) flows into the second heat exchanger chamber (138) through the second inside air damper (142), Thereafter, it passes through the second adsorption heat exchanger (152). In the second adsorption heat exchanger (152), 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 by the second adsorption heat exchanger (152) flows into the exhaust side passage (133) through the second exhaust side damper (148) and passes through the exhaust fan chamber (135). It is discharged to the outside through the exhaust port (121).

<Switching control between first operation and second operation>
In the humidity control device (110), the humidity control controller (165) and the frequency side time adjustment unit (166) discharge the air that has passed through the heating-side adsorption heat exchanger (151, 152) to the outside of the room. At the time of dehumidifying and ventilating operation in which air passing through the adsorption heat exchanger (152, 151) is supplied to the room, the switching operation of the air passages (161, 162) by the dampers (141-148) is performed as described above, as shown in FIG. The operation is performed with a time delay from the switching operation between the heating side and the cooling side of the adsorption heat exchanger (151, 152) by the valve (154). Specifically, as shown in FIG. 16, when the operating frequency of the compressor (153) is set to a B state higher than the A state, for example, the frequency side time adjustment unit (166) of the humidity controller (165) is set. ) After the passage of a predetermined delay time (t2) (for example, 5 seconds) from the switching operation of the adsorption heat exchanger (151, 152) by the four-way switching valve (154), the air passage (161 by the damper (141 to 148)) , 62). The predetermined delay time (t2) is an example and may be changed as appropriate.

<Humidified ventilation operation>
In the humidity control apparatus (110) 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 (183) and the second bypass damper (184) are always closed.

    In the humidity control device (110) during the humidification ventilation operation, outdoor air is taken into the humidity control casing (111) from the outside air suction port (124) as the second air, and room air is conditioned from the inside air suction port (123). The first air is taken into the casing (111).

    First, the 1st operation | movement of humidification ventilation operation is demonstrated. As shown in FIG. 13, during this first operation, the second inside air side damper (142), the first outside air side damper (143), the first air supply side damper (145), and the second exhaust side damper ( 148) is in the open state, and the first inside air damper (141), the second outside air damper (144), the second air supply side damper (146), and the first exhaust side damper (147) are in the closed state. In the refrigerant circuit (150) during the first operation, the four-way switching valve (154) is set to the first humidity control state (the state shown in FIG. 10A), and the first adsorption heat exchanger (151 ) Becomes a condenser, and the second adsorption heat exchanger (152) becomes an evaporator.

    The first air that has flowed into the room air passage (132) and passed through the room air filter (127) flows into the second heat exchanger chamber (138) through the second room air damper (142), and then It passes through the second adsorption heat exchanger (152). In the second adsorption heat exchanger (152), 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 by the second adsorption heat exchanger (152) flows into the exhaust side passage (133) through the second exhaust side damper (148) and passes through the exhaust fan chamber (135). It is discharged to the outside through the exhaust port (121).

    On the other hand, the second air that has flowed into the outside air passage (134) and passed through the outside air filter (128) flows into the first heat exchanger chamber (137) through the first outside air damper (143), Thereafter, it passes through the first adsorption heat exchanger (151). In the first adsorption heat exchanger (151), 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 (151) flows into the supply side passage (131) through the first supply side damper (145) and passes through the supply fan chamber (136). Later, the air is supplied into the room through the air supply port (122).

    Next, the second operation of the humidification ventilation operation will be described. As shown in FIG. 14, during the second operation, the first inside air damper (141), the second outside air side damper (144), the second air supply side damper (146), and the first exhaust side damper ( 147) is opened, and the second inside air damper (142), the first outside air damper (143), the first supply air damper (145), and the second exhaust air damper (148) are closed. In the refrigerant circuit (150) during the second operation, the four-way selector valve (154) is set to the second humidity control state (the state shown in FIG. 10B), and the first adsorption heat exchanger (151 ) Becomes an evaporator, and the second adsorption heat exchanger (152) becomes a condenser.

    The first air that has flowed into the room air passage (132) and passed through the room air filter (127) flows into the first heat exchanger chamber (137) through the first room air damper (141), and then Passes through the first adsorption heat exchanger (151). In the first adsorption heat exchanger (151), 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 by the first adsorption heat exchanger (151) flows into the exhaust side passage (133) through the first exhaust side damper (147) and passes through the exhaust fan chamber (135). It is discharged to the outside through the exhaust port (121).

    On the other hand, the second air that has flowed into the outside air passage (134) and passed through the outside air filter (128) flows into the second heat exchanger chamber (138) through the second outside air damper (144), Thereafter, it passes through the second adsorption heat exchanger (152). In the second adsorption heat exchanger (152), 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 (152) flows through the second supply air damper (146) into the supply air passage (131) and passes through the supply air fan chamber (136). Later, the air is supplied into the room through the air supply port (122).

-Effect of Embodiment 2-
According to the second embodiment, during the dehumidifying ventilation operation, the switching operation of each damper (141 to 148) is executed after a predetermined delay time (t2) has elapsed from the switching operation of the four-way switching valve (154). Therefore, during the delay time (t2), the adsorbent of the adsorption heat exchanger (151, 152) on the regeneration side can be cooled.

    Further, since the frequency side time adjuster (166) is provided, the length of the predetermined delay time (t2) can be adjusted based on the operating frequency of the compressor (153). That is, the cooling operation time (t2) can be set according to the temperature of the adsorbent without separately using a sensor member such as an air temperature sensor. Furthermore, the higher the operating frequency of the compressor (153), the longer the predetermined delay time (t2), so even if the operating frequency of the compressor (153) increases and the temperature of the adsorbent increases, The adsorbent can be reliably cooled in response to the temperature rise. As a result, temperature fluctuations in the air supplied to the room can be suppressed. As a result, temperature control in a clean room or the like of a semiconductor factory can be performed with high accuracy.

    Further, since the first adsorption heat exchanger (151) and the second adsorption heat exchanger (152) are provided, the adsorption side of each adsorption heat exchanger (151, 152) can be switched by switching the circulation direction of the refrigerant in the refrigerant circuit (150). And the playback side can be easily switched. Other configurations, operations, and effects are the same as those in the first embodiment.

<Modification of Embodiment 2>
In the second embodiment, instead of determining the predetermined delay time (t2) according to the operating frequency of the compressor (153) of the humidity control device (110), the supply air of the humidity control device (110) The delay time (t3) is determined based on the temperature of (SA).

    Specifically, as shown in FIG. 17, an outdoor air temperature sensor (198) and an evaporation temperature sensor (199) are provided.

    The outdoor air temperature sensor (198) is for measuring the temperature of the outdoor air (OA) sucked from the outdoor air inlet (124). The outdoor air temperature sensor (198) is installed in the outdoor air passage (134) in the humidity control casing (111), and is connected to the humidity controller (165). The measured temperature data of the outdoor air (OA) is It is sent to the humidity controller (165).

    The evaporation temperature sensor (199) is for measuring the evaporation temperature of the adsorption heat exchanger (151, 152) operating as an evaporator. The evaporation temperature sensor (199) is installed in the vicinity of each adsorption heat exchanger (151,152), and connected to the humidity controller (165), and the measured evaporation temperature data of each adsorption heat exchanger (151,152) is adjusted. Sent to the humidity controller (165).

    During the dehumidification / ventilation operation of the humidity controller (110), the humidity controller (165) determines the temperature of the supply air (SA) of the humidity controller (110) based on the temperature data sent from the sensors (198, 199). Ask for. Then, the humidity controller (165) obtains a difference (ΔT2 = Tmax−Tmin) between the maximum temperature (Tmax) and the minimum temperature (Tmin) of the supply air (SA) in one batch operation, and the ΔT2 The cooling operation time (t3) is set according to the difference from ΔT1, which is the allowable temperature range of the indoor temperature variation. The cooling operation time (t3) is determined from the correspondence table shown in FIG. For example, if ΔT2 = 10 ° C. and ΔT1 is 2 ° C., the cooling operation time (t3) is 60 seconds. That is, during the dehumidifying ventilation operation, after the cooling operation time (t3) has elapsed from the switching operation between the heating side and the cooling side of the adsorption heat exchanger (151, 152) by the four-way switching valve (154), 148) is performed to switch the air passages (161, 162). The cooling operation time (t3) shown in FIG. 18 is an example and may be changed as appropriate. Other configurations, operations, and effects are the same as those of the second embodiment.

<Other embodiments>
The present invention may be configured as follows with respect to the first embodiment.

    In the first embodiment, the cooling operation time (t1) is obtained based on the temperature measured by the supply air temperature sensor (43), but the present invention is, for example, exhaust air that measures the temperature of the exhaust air (EA). A temperature sensor may be installed in the exhaust passage (26), and the cooling operation time (t1) may be obtained based on the temperature measured by the exhaust air temperature sensor.

    In the first embodiment, the three-way valve (85) is switched to the second state (cooling side) to cool the adsorbent. However, the present invention supplies hot water to the heat exchanger (45). The adsorbent may be cooled by stopping.

    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 that alternately dehumidifies air with two adsorbing elements.

DESCRIPTION OF SYMBOLS 11 Dehumidification casing 43 Supply air temperature sensor 45 Heat exchanger 61 1st adsorption | suction element 62 2nd adsorption | suction element 91 Temperature side time adjustment part 111 Humidity adjustment casing 141 1st inside air side damper 142 2nd inside air side damper 143 1st outside air side damper 144 Second air damper 145 First air damper 146 Second air damper 147 First exhaust damper 148 Second exhaust damper 150 Refrigerant circuit 151 First adsorption heat exchanger 152 Second adsorption heat exchanger 153 Compressor 154 Four-way switching valve 161 First air passage 162 Second air passage 165 Humidity controller 166 Frequency side time adjustment unit

Claims (7)

A casing (11) through which air flows, first and second adsorbing members (61, 62) carrying adsorbents that are accommodated in the casing (11) and adsorb moisture in the air, and each adsorbing member A heating mechanism (45) for heating the adsorbent of (61, 62),
A first batch operation of adsorbing moisture with the adsorbent of the first adsorbing member (61) and heating the adsorbent of the second adsorbing member (62), and moisture with the adsorbent of the second adsorbing member (62) And the second batch operation in which the adsorbent of the first adsorbing member (61) is heated alternately, and one of the air passing through the adsorbing members (61, 62) is used as supply air (SA). A humidity control device that supplies the air to the outside as exhaust air (EA),
A cooling mechanism (45) for cooling the adsorbent of the adsorbing member (61, 62) on the adsorption side during the next batch operation over a predetermined time (t1) between the two batch operations;
An air temperature detector (43) for detecting an air temperature of at least one of supply air (SA) to the room and exhaust air (EA) to the outside;
A temperature-side time adjuster (91) for adjusting the length of the predetermined time (t1) of the cooling mechanism (45) based on the temperature detected by the air temperature detector (43). Humidity control device. In claim 1,
The temperature side time controller (91) is configured to determine a predetermined time (t1) of the cooling mechanism (45) based on the difference between the maximum value and the minimum value of the detected temperature of the air temperature detector (43) in one batch operation. A humidity control device configured to adjust the humidity. In claim 2,
The temperature side time adjuster (91) is configured such that the larger the difference between the maximum value and the minimum value of the detected temperature of the air temperature detector (43) in one batch operation, the longer the predetermined time (t1) of the cooling mechanism (45). The humidity control device is characterized by being configured to lengthen the length. First and second adsorbing members (151 and 152) carrying adsorbents that adsorb moisture in the air, a first air passage (161) in which the first adsorbing member (151) is disposed, and a second adsorbing member ( 152) provided with a second air passage (162) in which is disposed, and temperature adjustment provided in the casing (111) for heating one of the adsorbing members (151 and 152) and cooling the other The mechanism (150) and the first operation of cooling the adsorbent of the first adsorbing member (151) and heating the adsorbent of the second adsorbing member (152) and heating the adsorbent of the first adsorbing member (151) And a temperature adjustment switch (154) for switching the second operation for cooling the adsorbent of the second adsorbing member (152), and the first air passage (161) and the second air passage (162) alternately in the room. A humidity control device comprising an air passage switch (141 to 148) for switching to an air supply path to
During the dehumidifying operation in which the air that has passed through the cooling-side adsorption member (151,152) is supplied into the room and the air that has passed through the heating-side adsorption member (151,152) is discharged to the outside, the air passage switch (141 to 148) is switched. A humidity control apparatus comprising: a switching controller (165) that performs an operation after a predetermined delay time has elapsed from the switching operation of the temperature control switch (154). In claim 4,
The temperature control mechanism (150) includes a compressor (153) and is configured as a heat medium circuit (150) through which a heat medium fluid circulates, while the temperature control switch (154) includes the heat medium circuit. (150) is configured in a circuit switching mechanism (154) for switching the circulation direction of the heat medium fluid,
The switching controller (165) includes a frequency-side time controller (166) that adjusts the length of the predetermined delay time based on the operating frequency of the compressor (153). Wet equipment. In claim 5,
The humidity control apparatus, wherein the frequency side time controller (166) is configured to increase the predetermined delay time as the operating frequency of the compressor (153) is higher. In any one of Claims 4-6,
The first adsorption member (151) is constituted by a first adsorption heat exchanger (151) and the second adsorption member (152) is constituted by a second adsorption heat exchanger (152). Humidity control device.

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