JP2011012846A - Humidity controller - Google Patents

Abstract

An object of the present invention is to provide a countermeasure for fluctuations in the temperature of air supplied to a room in a humidity control apparatus that performs a dehumidifying operation by alternately switching two batch operations.
A dehumidifying device (10) has a first operation in which moisture in the air is adsorbed by a first adsorbing element and the second adsorbing element is heated and regenerated, and moisture in the air is adsorbed by a second adsorbing element. The second operation of heating and regenerating the first adsorption element is alternately performed, and one of the air that has passed through each adsorption element is supplied to the indoor side as supply air (SA) and the other is discharged air (EA) ) With a dehumidifying mechanism (10a) that discharges to the outside, and a heat exchange mechanism (80) that adjusts the temperature of the supply air (SA) by exchanging heat between the supply air (SA) and the exhaust air (EA). Yes.
[Selection] Figure 1

Description

    The present invention relates to a humidity control apparatus, and particularly relates to an apparatus equipped with a heat exchange mechanism that adjusts the temperature of humidity-controlled air supplied to a room.

    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.

    In the present invention, heat is exchanged between the supply air (SA) supplied into the room from the humidity control mechanism (10a, 110a) and the exhaust air (EA) discharged out of the room.

    1st invention is equipped with the 1st and 2nd adsorption member (61,62,151,152) which is accommodated in the casing (11,111) through which air flows, and the moisture in the air is adsorbed, 61,151) adsorbs moisture in the air and heats and regenerates the second adsorption member (62,152), and adsorbs moisture in the air by the second adsorption member (62,152) and first adsorption member (61, 151) is alternately performed with the second operation of heating and regenerating, and one of the air that has passed through each adsorbing member (61, 62, 151, 152) is supplied to the indoor side as supply air (SA), and the other is discharged air (EA ) Is a humidity control device equipped with a humidity control mechanism (10a, 110a) that discharges to the outside, and heat-exchanges the supply air (SA) and exhaust air (EA) to control the temperature of the supply air (SA). A heat exchange mechanism (80) for adjustment is provided.

    In the first invention, the first operation and the second operation are alternately performed in the humidity control mechanism (10a, 110a).

    First, in the first operation, air taken into the casing (11, 111) from outside is taken in. The taken-in air passes through the first adsorption member (61, 151). In the first adsorbing member (61, 151), moisture contained in the air is adsorbed by the first adsorbing member (61, 151), and the air becomes dehumidified air. The dehumidified air is supplied to the room as supply air (SA). At the same time, the air taken into the casing (11, 111) passes through the heated second adsorption member (62, 152). At this time, in the second adsorbing member (62,152), the moisture desorbed from the second adsorbing member (62,152) is given to the air passing through the second adsorbing member (62,152), and the air is humidified air. It becomes. The humidified air is discharged to the outside as discharged air (EA), while the second adsorption member (62, 152) is regenerated.

    Next, in the second operation, air is taken into the casing (11, 111) from the outside. The taken-in air passes through the second adsorption member (62, 152). In the second adsorbing member (62, 152), moisture contained in the air is adsorbed by the second adsorbing member (62, 152), and the air becomes dehumidified air. The dehumidified air is supplied to the room as supply air (SA). At the same time, the air taken into the casing (11, 111) passes through the heated first adsorption member (61, 151). At this time, in the first adsorption member (61, 151), moisture desorbed from the first adsorption member (61, 151) is given to the air passing through the first adsorption member (61, 151), and the air is humidified air. It becomes. The humidified air is discharged to the outside as discharged air (EA), while the first adsorption member (61, 151) is regenerated.

    In the first and second operations, the heat exchange mechanism (80) exchanges heat between the supply air (SA) and the exhaust air (EA) of the humidity control mechanism (10a, 110a). In the first operation, the air that has passed through the first adsorption member (61, 151) on the adsorption side becomes supply air (SA), and the air that has passed through the second adsorption member (62, 152) on the regeneration side is discharged air (EA Therefore, immediately after switching to the next second operation, the first adsorbing member (61, 151) on the regeneration side becomes relatively low temperature, and thereafter, gradually changes to high temperature, while on the adsorption side. Since the second adsorption member (62, 152) is heated in the first operation, the second adsorption member (62, 152) becomes a high temperature, and then gradually transitions to a low temperature. Further, immediately after switching to the next first operation, the second adsorption member (62, 152) on the regeneration side transitions from a relatively low temperature to a high temperature, while the first adsorption member (61, 151) on the adsorption side. Since it is heated in the second operation, the temperature becomes high, and then gradually transitions to a low temperature.

    Therefore, in the second operation, the heat exchange mechanism (80) passes through the second adsorbing member (62, 152) on the adsorption side and changes the temperature from high temperature to low temperature, and the regeneration side is the first. The temperature of both air is averaged by exchanging heat with the exhaust air (EA) that passes through one adsorbing member (61, 151) and changes in temperature from a low temperature to a high temperature. As a result, the temperature change of supply air (SA) is suppressed.

    In the first operation, the heat exchange mechanism (80) passes through the first adsorbing member (61, 151) on the adsorption side and changes its temperature from a high temperature to a low temperature, and the regeneration side is the first one. The temperature of both air is averaged by exchanging heat with the exhaust air (EA) that passes through the two adsorbing members (62, 152) and changes in temperature from a low temperature to a high temperature. As a result, the temperature change of supply air (SA) is suppressed.

    According to a second aspect, in the first aspect, the humidity control mechanism (10a, 110a) extends from the humidity control mechanism (10a, 110a) to a room and a supply air passage (SA) passes through 23a, 122a) and exhaust air passages (21a, 121a) that extend from the humidity control mechanism (10a, 110a) to the outside and through which exhaust air (EA) passes, the heat exchange mechanism (80) includes supply air A heat exchange section (81) is provided for heat exchange between supply air (SA) passing through the passages (23a, 122a) and exhaust air (EA) passing through the discharge air passages (21a, 121a).

    In the second aspect of the invention, the supply air (SA) supplied from the humidity control mechanism (10a, 110a) by the first operation and the second operation is supplied indoors through the supply air passage (23a, 122a). . The exhaust air (EA) exhausted from the humidity control mechanism (10a, 110a) is exhausted to the outside through the exhaust air passage (21a, 121a).

    In the first operation, the air that has passed through the first adsorption member (61, 151) on the adsorption side becomes supply air (SA), and the air that has passed through the second adsorption member (62, 152) on the regeneration side is discharged air (EA Therefore, immediately after switching to the next second operation, the first adsorbing member (61, 151) on the regeneration side becomes a relatively low temperature, and then gradually transitions to a high temperature, while on the adsorbing side. The certain second adsorbing member (62, 152) is heated in the first operation and thus becomes high temperature, and then gradually changes to low temperature. Further, immediately after switching to the next first operation, the second adsorption member (62, 152) on the regeneration side transitions from a relatively low temperature to a high temperature, while the first adsorption member (61, 151) on the adsorption side. Becomes a high temperature because it is heated in the second operation, and then gradually transitions to a low temperature.

    Therefore, in the second operation, the heat exchange unit (81) regenerates the supply air (SA) passing through the supply air passage (23a, 122a) through the second adsorption member (62, 152) on the adsorption side and the regeneration. The temperature of both air is averaged by heat-exchanging with the exhaust air (EA) which passes the 1st adsorption | suction member (61,151) which is a side, and passes the exhaust air passage (21a, 121a). As a result, the temperature change of supply air (SA) is suppressed.

    Further, in the first operation, the heat exchange unit (81) regenerates the supply air (SA) that passes through the supply air passage (23a, 122a) through the first adsorption member (61, 151) on the adsorption side, and the regeneration. The temperature of both air is averaged by heat-exchanging with the exhaust air (EA) which passes the 2nd adsorption | suction member (62,152) which is a side, and passes the exhaust air passage (21a, 121a). As a result, the temperature change of supply air (SA) is suppressed. .

    In a third aspect based on the second aspect, at least one of the supply air passage (23a, 122a) and the exhaust air passage (21a, 121a) bypasses the heat exchange section (81). A bypass air passage (84) is formed.

    In the third aspect of the invention, when the bypass air passage (84) is formed in the supply air passage (23a, 122a), the supply air (SA) supplied from the humidity control mechanism (10a, 110a) by the first operation and the second operation. ) Passes through the bypass air passage (84) and is supplied to the room. The supply air (SA) passing through the bypass air passage (84) is supplied into the room without being subjected to heat exchange in the heat exchange section (81). On the other hand, exhaust air (EA) exhausted from the humidity control mechanism (10a, 110a) is exhausted to the outside through the exhaust air passage (21a, 121a).

    When the bypass air passage (84) is formed in the exhaust air passage (21a, 121a), a part of the exhaust air (EA) exhausted from the humidity control mechanism (10a, 110a) by the first and second operations is It passes through the bypass air passage (84) and is supplied to the room. Exhaust air (EA) that passes through the bypass air passage (84) is discharged outside the room without heat exchange in the heat exchange section (81). On the other hand, the supply air (SA) supplied from the humidity control mechanism (10a, 110a) is supplied into the room through the supply air passage (23a, 122a).

    In a fourth aspect based on the third aspect, the heat exchange mechanism (80) includes a flow rate adjusting valve (85) for adjusting a flow rate of air passing through the bypass air passage (84).

    In the fourth aspect, the flow rate adjustment valve (85) adjusts the flow rate of the supply air (SA) or the exhaust air (EA) passing through the bypass air passage (84).

    In a fifth aspect based on the fourth aspect, the heat exchange mechanism (80) controls the opening degree of the flow control valve (85) based on the temperature of the supply air (SA) or the temperature of the exhaust air (EA). A temperature side opening controller (86) for adjustment is provided.

    In the fifth aspect, the temperature side opening controller (86) adjusts the opening of the flow rate control valve (85) based on the temperature of the supply air (SA) or the exhaust air (EA). That is, the opening degree of the flow rate control valve (85) is adjusted based on the temperature state of at least one of supply air (SA) and exhaust air (EA).

    In a sixth aspect based on the fifth aspect, the temperature side opening degree controller (86) is configured to supply air (SA) and exhaust air (EA) during any one of the first operation and the second operation. The opening degree of the flow rate control valve (85) is adjusted based on the difference between the maximum value and the minimum value of the temperature.

    In the sixth aspect of the invention, the temperature side opening controller (86) includes the maximum temperature (TSAmax) and the minimum temperature (TSAmin) of the supply air (SA) during any one of the first operation and the second operation. The temperature difference (ΔTSA) is calculated. And the opening degree of the flow control valve (85) is adjusted based on this temperature difference (ΔTSA).

    Alternatively, the temperature side opening controller (86) may be configured such that the temperature difference between the maximum temperature (TEAmax) and the minimum temperature (TEAmin) of the exhaust air (EA) during any one of the first operation and the second operation ( ΔTEA) is obtained. And the opening degree of the flow control valve (85) is adjusted based on this temperature difference (ΔTEA).

    In a seventh aspect based on the sixth aspect, the heat exchange mechanism (80) is configured such that the temperature of the supply air (SA) is upstream of the air in the heat exchange section (81) in the supply air passage (23a, 122a). A first temperature detector (82) for detecting the temperature and a second temperature for detecting the temperature of the exhaust air (EA) upstream of the air in the heat exchange section (81) in the exhaust air passage (21a, 121a) And a detector (83).

    In the seventh aspect of the invention, the temperature side opening degree controller (86) includes the detected temperature of the supply air (SA) by the first temperature detector (82) and the exhausted air by the second temperature detector (83). The opening degree of the flow control valve (85) is adjusted based on the detected temperature of (EA). That is, the opening degree of the flow rate control valve (85) is determined according to the necessary heat exchange amount based on the temperatures of the supply air (SA) and the exhaust air (EA) before heat exchange.

    According to an eighth invention, in any one of the fourth to seventh inventions, the humidity control mechanism (10a, 110a) includes a compressor (153), and the heat medium circuit in which the heat medium fluid circulates. (150) and a temperature adjustment mechanism (150) for heating one of the adsorption members (151 and 152) and cooling the other during the first and second operations, and the heat exchange mechanism (80) A frequency side opening controller (87) for adjusting the opening of the flow rate control valve (85) based on the operating frequency of the compressor (153) is provided.

    In the eighth aspect of the invention, in the temperature adjustment mechanism (150), the heat medium fluid discharged from the compressor (153) circulates in the heat medium circuit (150). In the first operation, the first adsorption member (61, 151) on the adsorption side is cooled, and the second adsorption member (62, 152) on the regeneration side is heated. In the second operation, the second adsorption member (62, 152) on the adsorption side is cooled and the first adsorption member (61, 151) on the regeneration side is heated.

    The frequency side opening controller (87) adjusts the opening of the flow rate adjustment valve (85) according to the operating frequency of the compressor (153). That is, when the operating frequency of the compressor (153) is high, the temperature of the supply air (SA) supplied from the humidity control mechanism (10a, 110a) is high. By reducing the amount of supply air (SA) or exhaust air (EA) flowing into the bypass air passage (84), the amount of air exchanged in the heat exchange section (81) is increased.

    On the other hand, when the operating frequency of the compressor (153) is low, the temperature of the supply air (SA) supplied from the humidity control mechanism (10a, 110a) is low. The amount of air exchanged in the heat exchange section (81) is reduced by increasing the amount of supply air (SA) or exhaust air (EA) flowing into the bypass air passage (84).

    In a ninth aspect based on the eighth aspect, the frequency side opening controller (87) is configured to decrease the opening degree of the flow control valve (85) as the operating frequency of the compressor (153) is higher. Has been.

    In the ninth aspect, the frequency side opening controller (87) decreases the opening of the flow rate control valve (85) as the operating frequency of the compressor (153) increases. The higher the operating frequency of the compressor (153), the higher the temperature of the supply air (SA) supplied from the humidity control mechanism (10a, 110a). By reducing the amount of supply air (SA) or exhaust air (EA) flowing into the passage (84), the amount of air exchanged in the heat exchange section (81) is increased.

    According to the first aspect of the present invention, since the supply air (SA) and the exhaust air (EA) of the humidity control mechanism (10a, 110a) are heat-exchanged, the adsorption member (switched from the regeneration side to the adsorption side) The supply air (SA) that has passed through 61, 62, 151, 152) and the exhaust air (EA) that has passed through the adsorption member (61, 62, 151, 152) switched from the adsorption side to the regeneration side can be subjected to heat exchange. In other words, supply air (SA) that changes temperature from high temperature to low temperature after switching from regeneration side to adsorption side, and exhaust air (EA) that changes temperature from low temperature to high temperature after switching from adsorption side to regeneration side As a result of the heat exchange between and the temperature of both airs being averaged, the temperature change of the supply air (SA) can be suppressed. Thereby, the temperature fluctuation of supply air (SA) supplied indoors can be controlled. 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, since the supply air (SA) and the exhaust air (EA) are exchanged in the heat exchange section (81), the temperature is changed from the high temperature to the low temperature after switching from the regeneration side to the adsorption side. As a result of heat exchange between the changing supply air (SA) and the exhaust air (EA) whose temperature changes from low to high after switching from the adsorption side to the regeneration side, the temperature of both air is averaged. The temperature change of supply air (SA) can be suppressed. Thereby, the temperature fluctuation of supply air (SA) supplied indoors can be controlled. 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 third aspect of the present invention, since the bypass air passage (84) that bypasses the heat exchange section (81) is provided, heat exchange between the supply air (SA) and the exhaust air (EA) in the heat exchange section (81). Can be avoided. That is, unnecessary heat exchange of the supply air (SA) can be suppressed. Thereby, the temperature fluctuation of supply air (SA) supplied indoors can be controlled. 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, since the flow rate adjustment valve (85) for adjusting the flow rate of the air passing through the bypass air passage (84) is provided, the supply air (SA) and the exhaust air ( The amount of heat exchange with EA) can be adjusted. That is, unnecessary heat exchange of the supply air (SA) can be suppressed. Thereby, the temperature fluctuation of supply air (SA) supplied indoors can be controlled. 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 of the invention, since the temperature side opening degree controller (86) is provided, the opening degree of the flow rate control valve (85) is adjusted based on the temperature of the supply air (SA) or the exhaust air (EA). be able to. That is, it is possible to adjust the amount of air exchanged by the heat exchange unit (81) according to the temperature state of the supply air (SA) and the exhaust air (EA). That is, unnecessary heat exchange of the supply air (SA) can be suppressed. Thereby, the temperature fluctuation of supply air (SA) supplied indoors can be controlled. 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 of the invention, the opening degree of the flow control valve (85) is adjusted based on the difference between the maximum value and the minimum value of the temperature of supply air (SA) and exhaust air (EA) during one operation. Therefore, an appropriate amount of heat can be exchanged between the supply air (SA) and the exhaust air (EA) in the heat exchange section (81). Thereby, the unnecessary heat exchange of supply air (SA) can be suppressed.

    According to the seventh aspect of the invention, since the first temperature detector (82) and the second temperature detector (83) are provided, the supply air (SA) upstream of the heat exchange section (81) and The temperature of the exhaust air (EA) can be detected. That is, the flow rate control valve (85) can be adjusted based on the temperatures of the supply air (SA) and the exhaust air (EA) before heat exchange. Thereby, an appropriate amount of heat can be exchanged between the supply air (SA) and the exhaust air (EA) in the heat exchange section (81).

    According to the eighth aspect of the invention, since the opening degree of the flow rate control valve (85) is adjusted based on the operating frequency of the compressor (153), the air to be heat-exchanged according to the temperature of the supply air (SA) The amount can be adjusted. That is, the heat exchange amount of the heat exchange section (81) can be adjusted without using a sensor for detecting the temperature of the supply air (SA) or the like. Thereby, the temperature fluctuation of the supply air (SA) supplied to the room can be suppressed, and the manufacturing cost of the humidity control device (10, 110) can be reduced.

    According to the ninth aspect, when the operating frequency of the compressor (153) is increased, the opening degree of the flow rate control valve (85) is decreased, so that the supply air (SA) is at a high temperature. In addition, the amount of supply air (SA) that is heat-exchanged in the heat exchange section (81) can be increased. That is, the heat exchange amount of the heat exchange section (81) can be adjusted without using a sensor for detecting the temperature of the supply air (SA) or the like. Thereby, the temperature fluctuation of the supply air (SA) supplied to the room can be suppressed, and the manufacturing cost of the humidity control device (10, 110) can be reduced.

1 is a schematic diagram illustrating an overall configuration of a dehumidifying apparatus according to Embodiment 1. FIG. 1 is a schematic perspective view showing an overall configuration of a dehumidifying mechanism according to Embodiment 1. FIG. It is a schematic block diagram of the dehumidification mechanism which concerns on Embodiment 1, (A) is a top view, (B) is a BB arrow line view of FIG. 3 (A), (C) is C of FIG. 3 (A). FIG. It is a schematic block diagram of the dehumidification mechanism which concerns on Embodiment 1, and shows the flow of the air in 1st batch operation | movement. It is a schematic block diagram of the dehumidification mechanism which concerns on Embodiment 1, and shows the flow of the air in 2nd batch operation | movement. It is a graph which shows the relationship between the temperature of the air in the humidity control apparatus which concerns on Embodiment 1, and time. FIG. 5 is a schematic diagram illustrating an overall configuration of a humidity control apparatus according to a modification of the first embodiment. It is a schematic diagram which shows the whole structure of the humidity control apparatus which concerns on Embodiment 2. FIG. It is a schematic perspective view which shows the whole structure of the humidity control mechanism which concerns on Embodiment 2. FIG. It is the top view which shows the general whole structure of the humidity control mechanism 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 mechanism which concerns on Embodiment 2, Comprising: (A) shows the operation | movement in 2nd operation | movement, (B) shows the operation | movement in 1st operation | movement. Is. 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 first operation of a dehumidifying ventilation operation of a humidity control mechanism according to a second embodiment. It is a schematic plan view, a right side view, and a left side view of a humidity control apparatus showing the air flow in the second operation of the dehumidifying ventilation operation of the humidity control mechanism 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 first operation of a humidification ventilation operation of a humidity control mechanism according to a second embodiment. It is a schematic plan view, a right side view, and a left side view of a humidity control apparatus showing the air flow in the second operation of the humidification ventilation operation of the humidity control mechanism according to the second embodiment. It is a graph which shows the relationship between the operating frequency of the compressor which concerns on Embodiment 2, and supply air temperature.

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

    In Embodiments 1 and 2, the humidity control apparatus according to the present invention constitutes a dehumidification apparatus or a humidity control apparatus. The dehumidifying device dehumidifies the air in the clean room of a semiconductor factory or a room in a food factory. The dehumidifier adjusts the air in a clean room of a semiconductor factory or a room in a food factory. is there.

Embodiment 1 of the Invention
As shown in FIGS. 1-3, the dehumidification apparatus (10) which concerns on Embodiment 1 is comprised by the dehumidification mechanism (10a) and the heat exchange mechanism (80). That is, in Embodiment 1, the humidity control device according to the present invention constitutes the dehumidification device (10), and the humidity control mechanism according to the present invention constitutes the dehumidification mechanism (10a).

    The dehumidifying mechanism (10a) includes a dehumidifying casing (11) that constitutes a casing according to the present 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) and the second suction port (22) communicate with the outdoor space via an air duct. The exhaust port (21) communicates with the outdoor space via the exhaust duct (21a). The air supply port (23) communicates with the indoor space via the air supply duct (23a).

    The exhaust duct (21a) is formed as an air duct through which air flows, and has one end connected to the exhaust port (21) and the other end extending outside the room. That is, the exhaust air (EA) exhausted from the dehumidification mechanism (10a) passes through the exhaust duct (21a) and is exhausted to the outside. The exhaust duct (21a) constitutes an exhaust air passage according to the present invention.

    The air supply duct (23a) is formed as an air duct through which air flows and has one end connected to the air supply port (23) and the other end extending outside the room. That is, the supply air (SA) supplied from the dehumidification mechanism (10a) passes through the air supply duct (23a) and is supplied indoors. The air supply duct (23a) constitutes a supply air passage according to the present invention.

    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) is accommodated in the air supply passage (28). The air supply fan (42) is a centrifugal multi-blade fan (so-called sirocco fan).

    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. 3). Hot water as a heating medium is supplied to the heat exchanger (45) from the inflow pipe (46). In addition, this warm water is produced | generated using the waste heat of other heat-source equipment, such as a factory, for example. And in a heat exchanger (45), warm water and air heat-exchange and air is heated. That is, the heat exchanger (45) constitutes a heating means for heating the air. The hot water flowing through the heat exchanger (45) is discharged out of the system through the outflow pipe (47). The inflow pipe (46) is provided with a solenoid valve (48) as an on-off valve. When the solenoid valve (48) is closed, the supply of hot water to the heat exchanger (45) is stopped, and the heat exchanger (45) is substantially stopped. A frame (49) is installed in the second suction passage (27) on the downstream side of 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.

    The heat exchange mechanism (80) is for exchanging heat between the supply air (SA) and the exhaust air (EA). The heat exchange mechanism (80) includes a heat exchange section (81), an intake air temperature sensor (82), an exhaust temperature sensor (83), a bypass duct (84), a flow control valve (85), and a temperature side A controller (86) is provided.

    The heat exchange part (81) is composed of an air supply side heat transfer part (81a) and an exhaust side heat transfer part (81b). Specifically, the air supply side heat transfer section (81a) is an air passage formed in the middle portion of the air supply duct (23a). That is, the supply air (SA) passing through the air supply duct (23a) passes through the air supply side heat transfer section (81a) on the way. The exhaust side heat transfer section (81b) is an air passage formed in the middle of the exhaust duct (21a). That is, the exhaust air (EA) passing through the exhaust duct (21a) passes through the exhaust side heat transfer section (81b) on the way. The air supply side heat transfer section (81a) and the exhaust side heat transfer section (81b) are installed so as to be close to each other. For this reason, heat exchange is performed between the supply air (SA) passing through the air supply side heat transfer section (81a) and the exhaust air (EA) passing through the exhaust side heat transfer section (81b).

    The supply air temperature sensor (82) is a temperature sensor that detects the temperature of supply air (SA) that passes through the supply air duct (23a), and constitutes a first temperature detector according to the present invention. . The supply air temperature sensor (82) is installed on the upstream side of the air from the supply air heat transfer section (81a) inside the supply air duct (23a). The supply air temperature sensor (82) is connected to the temperature controller (86), and the detected temperature data is sent to the temperature controller (86) as needed.

    The exhaust temperature sensor (83) is a temperature sensor for detecting the temperature of exhaust air (EA) passing through the exhaust duct (21a), and constitutes a second temperature detector according to the present invention. The exhaust temperature sensor (83) is installed on the upstream side of the air from the exhaust side heat transfer section (81b) inside the exhaust duct (21a). The exhaust temperature sensor (83) is connected to the temperature side controller (86), and the detected temperature data is sent to the temperature side controller (86) as needed.

    The temperature transition detected by the supply air temperature sensor (82) and the exhaust temperature sensor (83) is the transition indicated by the broken line in FIG.

    As shown in FIG. 1, the bypass duct (84) is a duct that is provided in the air supply duct (23a) and bypasses the heat exchange section (81), and constitutes a bypass air passage according to the present invention. Yes. The bypass duct (84) is formed as a duct through which air can flow, and one end of the bypass duct (84) is connected to the upstream side of the air in the air supply side heat transfer section (81a) in the air supply duct (23a). Is connected to the air downstream side of the air supply side heat transfer section (81a) in the air supply duct (23a). That is, a part of the supply air (SA) passing through the air supply duct (23a) is configured to flow into the bypass duct (84). A flow rate adjustment valve (85) is provided in the middle of the bypass duct (84). The flow rate control valve (85) is configured to be able to adjust the flow rate of air flowing through the bypass duct (84) by adjusting the opening degree. The flow rate adjustment valve (85) is connected to the temperature side controller (86), and the opening degree is adjusted by the temperature side controller (86).

    The temperature side controller (86) is for adjusting the opening degree of the flow control valve (85) based on the temperature of the supply air (SA) and the temperature of the exhaust air (EA), and relates to the present invention. It constitutes a temperature side opening controller. The temperature side controller (86) is connected to the supply air temperature sensor (82), the exhaust gas temperature sensor (83), and the flow rate control valve (85). The temperature-side controller (86) is based on the supply air (SA) temperature data sent from the supply air temperature sensor (82) and the exhaust air (EA) temperature data sent from the exhaust temperature sensor (83). The opening degree of the flow control valve (85) is controlled.

-Driving action-
A dehumidifying operation of the dehumidifying mechanism (10a) 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. 4, 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. 4, 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 solenoid valve (48) is opened, and the heating operation is always performed in the heat exchanger (45). Further, switching between the first batch operation and the second batch operation is performed every preset time (for example, about 5 to 10 minutes). In each drawing for explaining the operation of the dehumidifying mechanism (10a), hatching is added to the damper in the closed state, and the damper in the open state is shown in white. The first batch operation and the second batch operation respectively indicate the first operation and the second operation according to the present invention.

<First batch operation>
As shown in FIG. 4, 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 adsorbing element (61) flows out from the second air supply side damper (76) to the air supply passage (28) and passes through the air supply port (23) and the air supply duct (23a). It 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 adsorption element (62) flows out from the fourth exhaust side damper (74) to the exhaust passage (26) and is discharged through the exhaust port (21) and the exhaust duct (21a) ( EA) is discharged outside the room.

<Second batch operation>
As shown in FIG. 5, 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 adsorbing element (62) flows out from the fourth air supply side damper (78) to the air supply passage (28) through the air supply port (23) and the air supply duct (23a). It 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 through the exhaust port (21) and the exhaust duct (21a) ( EA) is discharged outside the room.

<Heat exchange operation>
In the dehumidifying mechanism (10a) of Embodiment 1, moisture is saturated with 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 second adsorption element (62) in the high temperature state. 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 temperature adjustment operation is performed in the heat exchange mechanism (80) to suppress the temperature fluctuation of the supply air (SA).

    First, when the first batch operation is started, the supply air (SA) passing through the air supply duct (23a) passes through the air supply side heat transfer section (81a) while passing through the exhaust duct (21a). The exhaust air (EA) passes through the exhaust side heat transfer section (81b). In the heat exchange section (81), the supply air (SA), the exhaust side heat transfer section (81b), and the exhaust air (EA) of the supply side heat transfer section (81a) exchange heat to supply air (SA) SA) is heat exchanged.

    The temperature controller (86) accumulates temperature data of supply air (SA) and exhaust air (EA) measured by the supply air temperature sensor (82) and exhaust temperature sensor (83) during the first batch operation. To do. Then, in the temperature side controller (86), as shown in FIG. 6, ΔTSA which is the difference between the maximum temperature (TSAmax) and the minimum temperature (TSAmin) of the supply air (SA) in the first batch operation is obtained. ΔTEA that is the difference between the maximum temperature (TEAmax) and the minimum temperature (TEAmin) of the exhaust air (EA) is obtained, and then the ratio of ΔTSA and ΔTEA (ΔTSA / ΔTEA) is obtained. The temperature controller (86) increases the amount of heat exchange in the heat exchange mechanism (80) by decreasing the opening of the flow control valve (85) as the ratio is larger (ΔTSA is larger and ΔTEA is smaller). As the ratio is smaller (ΔTSA is smaller and ΔTEA is larger), the opening degree of the flow rate control valve (85) is increased to reduce the heat exchange amount in the heat exchange mechanism (80).

    Next, when the first batch operation is switched to the second batch operation, the temperature-side controller (86) determines the opening degree of the flow control valve (85) according to the ratio (ΔTSA / ΔTEA). To the degree. When the second batch operation is started, the supply air (SA) that passes through the air supply duct (23a) passes through the air supply side heat transfer section (81a), while a part of the supply air (SA) passes through the bypass duct (84). ). Exhaust air (EA) passing through the exhaust duct (21a) passes through the exhaust side heat transfer section (81b). In the heat exchange unit (81), the supply air (SA), the exhaust side heat transfer unit (81b), and the exhaust air (EA) of the supply side heat transfer unit (81a) exchange heat. At this time, as shown in FIG. 6, the second air passing through the first adsorption element (61) that was on the adsorption side in the previous first batch operation changes from a relatively low temperature to a stepwise high temperature. Transition. On the other hand, the first air passing through the second adsorbing element (62), which was on the regeneration side in the previous first batch operation, transitions from a relatively high temperature to a gradually lower temperature. By exchanging heat between the second air and the first air, the temperatures of the two airs are averaged, and as a result, the temperature change of the supply air (SA) is suppressed (shown by a solid line in FIG. 6). On the other hand, the supply air (SA) passing through the bypass duct (84) bypasses the air supply side heat transfer section (81a) and flows into the air supply duct (23a) again. In the air supply duct (23a), the supply air (SA) flowing out from the air supply side heat transfer section (81a) and the supply air (SA) flowing out from the bypass duct (84) merge and are supplied to the room. .

-Effect of Embodiment 1-
According to the first embodiment, the heat exchange unit (81) exchanges heat between the supply air (SA) and the exhaust air (EA), so that the adsorption element (61, 62) switched from the regeneration side to the adsorption side. ) And the exhaust air (EA) passing through the adsorption element (62, 61) switched from the adsorption side to the regeneration side can be heat-exchanged. In other words, supply air (SA) that changes temperature from high temperature to low temperature after switching from regeneration side to adsorption side, and exhaust air (EA) that changes temperature from low temperature to high temperature after switching from adsorption side to regeneration side As a result of averaging the temperatures of both air by exchanging heat with each other, the temperature change of the supply air (SA) can be suppressed.

    In addition, since the bypass duct (84) that bypasses the heat exchange section (81) is provided in the air supply duct (23a), it is possible to avoid heat exchange of the supply air (SA) in the heat exchange section (81). it can. And since the flow control valve (85) was provided in the bypass duct (84), the heat exchange amount of the supply air (SA) and exhaust air (EA) in a heat exchange part (81) can be adjusted. Thereby, the unnecessary heat exchange of supply air (SA) can be suppressed.

    Furthermore, since the temperature side controller (86) is provided, the opening degree of the flow rate control valve (85) can be adjusted based on ΔTSA and ΔTEA. As a result, an appropriate amount of heat can be exchanged between the supply air (SA) and the exhaust air (EA) in the heat exchange section (81), thereby suppressing unnecessary heat exchange of the supply air (SA). can do.

    As a result, temperature fluctuations in the supply air (SA) supplied into 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.

<Modification of Embodiment 1>
In a modification of the first embodiment, the configuration of the bypass duct (84) according to the first embodiment is different.

    As shown in FIG. 7, the bypass duct (84) according to the present modification is a duct that is provided in the exhaust duct (21a) and bypasses the heat exchanging portion (81), and includes the bypass air passage according to the present invention. It is composed. The bypass duct (84) is formed as a duct through which air can flow, and one end of the bypass duct (84) is connected to the upstream side of the exhaust side heat transfer section (81b) in the exhaust duct (21a) and the other end is exhausted. It is connected to the air downstream side of the exhaust side heat transfer section (81b) in the duct (21a). That is, a part of the exhaust air (EA) passing through the exhaust duct (21a) is configured to flow into the bypass duct (84). A flow rate adjustment valve (85) is provided in the middle of the bypass duct (84). The flow rate control valve (85) is configured to be able to adjust the flow rate of air flowing through the bypass duct (84) by adjusting the opening degree. The flow rate adjustment valve (85) is connected to the temperature side controller (86), and the opening degree is adjusted by the temperature side controller (86).

    The temperature side controller (86) is for adjusting the opening degree of the flow control valve (85) based on the temperature of the supply air (SA) and the temperature of the exhaust air (EA), and relates to the present invention. It constitutes a temperature side opening controller. The temperature side controller (86) is connected to the supply air temperature sensor (82), the exhaust gas temperature sensor (83), and the flow rate control valve (85). The temperature-side controller (86) is based on the supply air (SA) temperature data sent from the supply air temperature sensor (82) and the exhaust air (EA) temperature data sent from the exhaust temperature sensor (83). The opening degree of the flow control valve (85) is controlled. Other configurations, operations, and effects are the same as those in the first embodiment.

<Embodiment 2 of the invention>
In the second embodiment, instead of the dehumidifying mechanism (10a) of the first embodiment, as shown in FIG. 8, the humidity adjusting mechanism of the present invention constitutes the humidity adjusting mechanism (110a) and the heat exchanging mechanism (80 ) Is different. That is, in the second embodiment, the humidity control device (110) includes the humidity control mechanism (110a) and the heat exchange mechanism (80), and the humidity control device according to the present invention configures the humidity control device (110). is doing. The humidity control mechanism (110a) according to the second embodiment is a gradual humidifying device with a ventilation function that performs indoor ventilation along with indoor humidity control, and adjusts the humidity of the taken outdoor air (OA) to supply the room indoors. At the same time, the indoor air (RA) taken in is discharged to the outside. The heat exchange mechanism (80) according to the second embodiment includes a frequency-side controller (87) instead of the temperature-side controller (86).

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

    The humidity control mechanism (110a) includes a humidity control casing (111) that constitutes the casing of the present invention. 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 selector valve (154), 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 exhaust port (121) communicates with the outdoor space via the exhaust duct (121a). The air supply port (122) communicates with the indoor space via the air supply duct (122a).

    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. Is arranged. 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. Is arranged.

    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. The first adsorption heat exchanger (151) constitutes the first adsorption member according to the present invention, while the second adsorption heat exchanger (152) constitutes the second adsorption member according to the present invention. ing. 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).

    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).

    10, 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. 11, 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 frequency controller (87), and the output frequency of the inverter is sent to the frequency controller (87) as the operating frequency of the compressor (153).

    The four-way selector valve (154) has a first humidity control state (state shown in FIG. 11A) 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. 11 (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 mechanism (110a) of the second embodiment described above, the first adsorptive heat exchanger (151) serving as the first adsorbing 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) for switching the second operation of cooling the second adsorption heat exchanger (152) and the first air passage (161) and the second air passage (162) alternately in the room Dampers (141 to 148) are provided for switching to the 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. Further, the refrigerant circuit (150) includes a frequency-side controller (87) as shown in FIG.

    The frequency-side controller (87) is for adjusting the opening of the flow rate control valve (85) based on the operating frequency of the compressor (153), and the frequency-side opening controller according to the present invention is provided. It constitutes. The frequency side controller (87) is connected to the compressor (153) and the flow rate control valve (85). And the frequency side controller (87) controls the opening degree of the flow control valve (85) based on the data of the operating frequency of the compressor (153).

    Specifically, the frequency-side controller (87) is configured to reduce the opening degree of the flow rate control valve (85) as the operating frequency of the compressor (153) increases. That is, when the operating frequency of the compressor (153) increases, the temperature change of the supply air (SA) in one operation among the first operation and the second operation described later increases. In such a case, if the opening degree of the flow control valve (85) is lowered, the amount of supply air (SA) flowing into the bypass duct (84) is reduced, while the supply air side heat transfer section (81a) is reduced. Increasing supply air (SA) air volume. For this reason, the amount of supply air (SA) heat-exchanged by the air supply side heat transfer part (81a) increases.

-Driving action-
The humidity control mechanism (110a) 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 mechanism (110a) during dehumidification ventilation operation or humidification ventilation operation adjusts the humidity of the outdoor air (OA) taken in and supplies it to the room as supply air (SA). To the outside as exhaust air (EA). On the other hand, the humidity control mechanism (110a) during the simple ventilation operation supplies the taken outdoor air (OA) to the indoor side as supply air (SA) as it is, and at the same time, takes the taken indoor air (RA) as exhaust air (EA ) To the outside of the room. In the second embodiment, detailed description of the simple ventilation operation is omitted.

<Dehumidification ventilation operation>
In the humidity control mechanism (110a) during the dehumidification / 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 mechanism (110a) 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. 12, during the 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 second humidity control state (the state shown in FIG. 11B), 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 to the indoor side through the air supply duct (122a) 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) through the exhaust duct (121a).

    Next, the second operation of the dehumidifying ventilation operation will be described. As shown in FIG. 13, during the second operation, the first inside air damper (141), the second outside air damper (144), the second air supply damper (146), and the first exhaust 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 switching valve (154) is set to the first humidity control state (the state shown in FIG. 11A), 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 to the indoor side through the air supply duct (122a) 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) through the exhaust duct (121a).

<Heat exchange operation>
As shown in FIG. 16, the temperature difference (ΔTSA) of the supply air (SA) in the first operation and the second operation is proportional to the operating frequency of the compressor (153). That is, when the operating frequency of the compressor (153) is high, the temperature difference (ΔTSA) of the supply air (SA) also increases. For this reason, the frequency-side controller (87) reduces the opening degree of the flow rate control valve (85) as the operating frequency of the compressor (153) increases.

    Specifically, as shown in FIG. 16, when the frequency of the compressor (153) is in the A state, the opening degree of the flow rate control valve (85) is increased. And if the frequency of a compressor (153) will be in a B state higher than an A state, the opening degree of a flow control valve (85) will be lowered | hung. Subsequently, when the frequency of the compressor (153) becomes a C state higher than the B state, the opening degree of the flow rate control valve (85) is further lowered.

    Lowering the opening of the flow control valve (85) reduces the amount of supply air (SA) flowing into the bypass duct (84), while supplying air (SA) into the supply-side heat transfer section (81a). ) Increases air volume. For this reason, the amount of supply air (SA) heat-exchanged by the air supply side heat transfer part (81a) increases.

    For example, when the first operation is switched to the second operation, the frequency controller (87) determines the opening of the flow rate control valve (85) according to the operating frequency of the compressor (153). To. When the second batch operation is started, the supply air (SA) passing through the air supply duct (122a) passes through the air supply side heat transfer section (81a), while a part of the supply air (SA) passes through the bypass duct (84 ). Exhaust air (EA) passing through the exhaust duct (121a) passes through the exhaust side heat transfer section (81b). In the heat exchange section (81), the supply air (SA) of the supply air heat transfer section (81a) and the exhaust air (EA) of the exhaust heat transfer section (81b) exchange heat. At this time, as shown in FIG. 6, the second air passing through the first adsorption heat exchanger (151) that was on the adsorption side in the previous first operation has a temperature that is gradually increased from a relatively low temperature. Transition to. On the other hand, the first air passing through the second adsorption heat exchanger (152) that was on the regeneration side in the previous first operation transitions from a relatively high temperature to a lower temperature step by step. By exchanging heat between the second air and the first air, the temperatures of both the air are averaged, and as a result, the temperature change of the supply air (SA) is suppressed. On the other hand, the supply air (SA) passing through the bypass duct (84) bypasses the air supply side heat transfer section (81a) and flows into the air supply duct (122a) again. In the air supply duct (122a), the supply air (SA) flowing out from the air supply side heat transfer section (81a) and the supply air (SA) flowing out from the bypass duct (84) merge and are supplied to the room. .

<Humidified ventilation operation>
In the humidity control mechanism (110a) 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 mechanism (110a) during humidification ventilation operation, outdoor air is taken as the second air from the outside air inlet (124) into the humidity control casing (111), and the indoor air is adjusted from the inside air inlet (123). The first air is taken into the casing (111).

    First, the 1st operation | movement of humidification ventilation driving | operation is demonstrated. As shown in FIG. 14, 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 second humidity control state (the state shown in FIG. 11B), 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) through the exhaust duct (121a).

    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).

    Next, the second operation of the humidification ventilation operation will be described. As shown in FIG. 15, 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 switching valve (154) is set to the first humidity control state (the state shown in FIG. 11A), 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) through the exhaust duct (121a).

    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).

-Effect of Embodiment 2-
According to the second embodiment, since the opening degree of the flow rate control valve (85) is adjusted based on the operating frequency of the compressor (153), the amount of air to be heat-exchanged according to the temperature of the supply air (SA) Can be adjusted. In addition, since the opening of the flow rate control valve (85) is lowered as the operating frequency of the compressor (153) increases, the heat exchange section (81 ) Can increase the amount of supply air (SA) heat exchanged. That is, the heat exchange amount of the heat exchange section (81) can be adjusted without using a sensor for detecting the temperature of the supply air (SA) or the like. Thereby, the temperature fluctuation of the supply air (SA) supplied to the room can be suppressed, and the manufacturing cost of the humidity control apparatus (110) can be reduced.

<Other embodiments>
The present invention may be configured as follows for the second embodiment.

    In the second embodiment, the bypass duct (84) is provided in the air supply duct (122a) as in the first embodiment. However, the bypass duct (84) according to the second embodiment is a modification according to the first embodiment. Similarly to the above, it may be provided in the exhaust duct (121a).

    In the second embodiment, the opening degree of the flow rate control valve (85) is adjusted according to the operating frequency of the compressor (153) of the humidity control mechanism (110a), but the flow rate control valve (85) is opened. The degree may be adjusted based on the temperature of the refrigerant discharged from the compressor (153) measured by the discharge pipe temperature sensor (193).

    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 including a heat exchange mechanism that adjusts the temperature of humidity control air supplied to a room.

10a Dehumidifying mechanism 11 Dehumidifying casing 21a Exhaust duct 23a (according to Embodiment 1) Air supply duct 61 (According to Embodiment 1) First adsorbing element 62 Second adsorbing element 80 Heat exchanging mechanism 81 Heat exchanging section 82 Inlet air temperature sensor 83 Exhaust temperature sensor 84 Bypass duct 85 Flow rate adjusting valve 86 Temperature side controller 87 Frequency side controller 110a Humidity adjustment mechanism 111 Humidity adjustment casing 121a Exhaust duct 122a (according to the second embodiment) Air supply duct 150 Refrigerant Circuit 151 First adsorption heat exchanger 152 Second adsorption heat exchanger 153 Compressor

Claims (9)

The first and second adsorbing members (61, 62, 151, 152) are accommodated in a casing (11, 111) through which air flows, and moisture in the air is adsorbed, and the first adsorbing members (61, 151) A first operation for adsorbing moisture and heating and regenerating the second adsorbing member (62,152), and adsorbing moisture in the air with the second adsorbing member (62,152) and heating and regenerating the first adsorbing member (61,151) The second operation is alternately performed, and one of the air that has passed through the respective adsorbing members (61, 62, 151, 152) is supplied to the indoor side as supply air (SA), and the other is discharged to the outside as exhaust air (EA). A humidity control device equipped with a humidity control mechanism (10a, 110a),
A humidity control apparatus comprising a heat exchange mechanism (80) for adjusting the temperature of the supply air (SA) by exchanging heat between the supply air (SA) and the exhaust air (EA). In claim 1,
The humidity control mechanism (10a, 110a) includes a supply air passage (23a, 122a) that extends from the humidity control mechanism (10a, 110a) to the room and through which the supply air (SA) passes,
An exhaust air passage (21a, 121a) that extends from the humidity control mechanism (10a, 110a) to the outside and through which exhaust air (EA) passes,
The heat exchange mechanism (80) performs heat exchange between the supply air (SA) passing through the supply air passage (23a, 122a) and the exhaust air (EA) passing through the discharge air passage (21a, 121a). A humidity control apparatus comprising an exchange part (81). In claim 2,
The supply air passage (23a, 122a) or the discharge air passage (21a, 121a) has a bypass air passage (84) that bypasses the heat exchanging portion (81) in at least one of them. Humidity control device. In claim 3,
The said heat exchange mechanism (80) is equipped with the flow control valve (85) which adjusts the flow volume of the air which passes a bypass air passage (84), The humidity control apparatus characterized by the above-mentioned. In claim 4,
The heat exchange mechanism (80) includes a temperature side opening controller (86) that adjusts the opening of the flow control valve (85) based on the temperature of the supply air (SA) or the exhaust air (EA). A humidity control apparatus characterized by that. In claim 5,
The temperature side opening controller (86) is configured to calculate a difference between the maximum value and the minimum value of the supply air (SA) and the exhaust air (EA) during any one of the first operation and the second operation. A humidity control device configured to adjust the opening of the flow rate control valve (85) based on the control device. In claim 6,
The heat exchange mechanism (80) includes a first temperature detector (82) that detects the temperature of the supply air (SA) on the upstream side of the air in the heat exchange section (81) in the supply air passage (23a, 122a). ,
And a second temperature detector (83) for detecting the temperature of the exhaust air (EA) on the upstream side of the air of the heat exchange section (81) in the exhaust air passage (21a, 121a). Humidity control device. In any one of Claims 4-7,
The humidity control mechanism (10a, 110a) includes a compressor (153) and is configured in a heat medium circuit (150) through which a heat medium fluid circulates. 151,152) is provided with a temperature control mechanism (150) for heating one side and cooling the other,
The heat exchange mechanism (80) includes a frequency side opening controller (87) that adjusts the opening of the flow rate control valve (85) based on the operating frequency of the compressor (153). Humidity control device. In claim 8,
The frequency adjusting device (87) is configured to reduce the opening of the flow rate control valve (85) as the operating frequency of the compressor (153) is higher.

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