JP2009273963A - Dehumidifying apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the temperature variation of air supplied from a dehumidifying apparatus to a room inside. <P>SOLUTION: A dehumidifying apparatus (10) performs a first batch motion for supplying air adsorbing moisture by a first adsorbing element (61) to the room inside and allows air heated by a heat exchanger for heating (45) to pass through a second adsorbing element (62) to discharge it outside the room, and performs a second batch motion for supplying air adsorbing moisture by the second adsorbing element (62) to the room inside, allows air heated by the heat exchanger for heating (45) to pass through the first adsorbing element (61) to discharge to the room outside, both the actions switched alternately. The dehumidifying apparatus comprises a heat exchanger for cooling (90) for cooling air supplied to the room inside by the first or the second batch motion, and a controller (80) for controlling the opening degree of a second electromagnetic valve (93) in the heat exchanger for cooling (90) such that the temperature of the air supplied to the room inside is a predetermined temperature. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

    The present invention relates to a dehumidifying device, and particularly relates to temperature control of air supplied from a dehumidifying device to a room.

    Conventionally, a dehumidifying apparatus for dehumidifying a room or the like is widely known. Some dehumidifying devices include two adsorbing elements, and each adsorbing element alternately dehumidifies air.

    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. In the adsorption element, an adsorbent that adsorbs and desorbs moisture is supported 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 operations are alternately performed. First, in the first 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 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 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 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 dehumidifier, by performing so-called batch operation that switches between the first operation and the second operation every predetermined time, the adsorption performance (that is, dehumidification performance) of each adsorption element is not lowered. The indoor air can be dehumidified continuously.
JP 2004-60954 A

    As described above, in the dehumidifying device that alternately performs the two operations, the air heated by the heating means is supplied to raise the temperature of the adsorption element in order to release moisture from the adsorption element on the regeneration side. For this reason, immediately after switching between the two operations (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, there is a problem that air of relatively high temperature is supplied into the room immediately after the batch operation is switched.

    This point will be described in detail with reference to FIG. In the figure, Ta represents the change over time in the temperature of the air after being heated by the heating means (that is, the regeneration temperature of the adsorption element), and Tb is the change over time in the temperature of the air supplied to the room (supply air). A change is shown and each broken line has shown the time of switching to a room. As is apparent from the figure, the adsorption element is heated to around 60 ° C. For this reason, when the regeneration-side adsorption element transitions to the adsorption-side adsorption element in the next operation, immediately after the switching, the adsorption-side adsorption element is still at a temperature close to 60 ° C. Therefore, immediately after the switching of the batch operation, the temperature of the supply air reaches the maximum temperature (about 45 ° C.), and thereafter, the adsorption element on the adsorption side is gradually cooled and lowered. And just before the end of the batch operation, the temperature of the supply air becomes the lowest temperature (about 35 ° C.). Thereafter, when the next batch operation is performed, the temperature of the supply air becomes the maximum temperature again.

    As described above, in each batch operation of the conventional dehumidifier, the temperature of the air supplied to the room greatly fluctuates due to the influence of the heat remaining in the regeneration side adsorption element. 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 such a case, if the temperature of the supply air largely fluctuates, the desired temperature control cannot be performed, and there is a problem that the quality control is greatly hindered.

    This invention is made | formed in view of such a point, and it aims at suppressing the temperature fluctuation of the air supplied indoors from a dehumidifier.

    The first invention includes a casing (11) through which air flows, two adsorbing elements (61, 62) that are provided inside the casing (11) and adsorb moisture in the air, and the casing (11 And heating means (45) for heating the air supplied to the adsorption element (61, 62), and supplying the air adsorbed with the first adsorption element (61) into the room The first operation of passing the air heated by the heating means (45) through the second adsorbing element (62) and discharging it to the outside of the room, and supplying the air adsorbed moisture by the second adsorbing element (62) into the room And a dehumidifying device that alternately executes a second operation of passing the air heated by the heating means (45) through the first adsorbing element (61) and exhausting the air to the outside. Or a cooling means (90) for cooling the air supplied into the room by the second operation; Air supplied to the chamber and a control means (80) for controlling the cooling capacity of the cooling means (90) to a predetermined temperature.

    In the said 1st invention, the dehumidified air is supplied indoors by performing 1st operation | movement or 2nd operation | movement. Here, since the heating means (45) heats the second adsorption element (62) during the operation of the first operation, when the first operation is switched to the second operation, the room immediately after the operation is switched. The air supplied to becomes hot. On the other hand, since the heating means (45) heats the first adsorption element (61) during the operation of the second operation, when the second operation is switched to the first operation, the room immediately after the operation is switched. The air supplied to becomes hot. That is, the air supplied into the room immediately after switching of each operation becomes high temperature. The cooling means (90) cools the air supplied into the room by the first operation or the second operation. At this time, the control means (80) controls the cooling capacity of the cooling means (90) so that the air supplied to the room has a predetermined temperature. Then, the air cooled by the cooling means (90) is supplied into the room.

    In a second aspect based on the first aspect, the control means (80) controls the cooling capacity of the cooling means (90) based on the temperature of the air supplied into the room.

    In the second aspect, the cooling means (90) cools the air supplied into the room by the first operation or the second operation. At this time, the control means (80) controls the cooling means (90) based on the temperature of the air supplied into the room to adjust the cooling capacity. Then, the air cooled by the cooling means (90) is supplied into the room.

    In a third aspect based on the first aspect, the control means (80) controls the cooling means (90) so as to increase the cooling capacity immediately after switching the operations.

    In the third aspect, immediately after the first operation is switched to the second operation or the second operation is switched to the first operation, the control means (80) increases the cooling capacity of the cooling means (90). The cooling means (90) cools the air supplied into the room after switching each operation with the increased cooling capacity. As a result, the temperature of the air supplied into the room after each operation is switched is lowered.

    In a fourth aspect based on the first aspect, the control means (80) controls the cooling means (90) so as to increase the cooling capacity before switching the operations.

    In the fourth aspect, the control means (80) increases the cooling capacity of the cooling means (90) before switching the first action to the second action or switching the second action to the first action. The cooling means (90) cools the air supplied into the room immediately after switching each operation with the increased cooling capacity. As a result, the temperature of the air supplied into the room immediately after the switching of each operation is lowered.

    In a fifth aspect based on the fourth aspect, the control means (80) controls the cooling means (90) so that the cooling capacity is maximized immediately after switching the operations.

    In the fifth aspect, the control means (80) increases the cooling capacity of the cooling means (90) before switching the first action to the second action or switching the second action to the first action. The control means (80) maximizes the cooling capacity of the cooling means (90) before switching each operation. The cooling means (90) cools the air supplied into the room immediately after switching each operation with the maximum cooling capacity. As a result, the temperature of the air supplied into the room immediately after the switching of each operation is lowered.

    In a sixth aspect based on the first aspect, the cooling means (90) is arranged on the upstream side of the air supplied to the chamber with respect to the adsorption elements (61, 62).

    In the sixth aspect of the invention, during the first operation or the second operation, the air cooled by the cooling means (90) is dehumidified by the adsorption element (61, 62) and supplied to the room. In the first operation, the air cooled by the cooling means (90) is passed through the first adsorption element (61) to adsorb moisture in the air. The air that has passed through the first adsorption element (61) is supplied into the room. In the second operation, the air cooled by the cooling means (90) is passed through the second adsorption element (62) to adsorb moisture in the air. The air that has passed through the second adsorption element (62) is supplied to the room.

    In a seventh aspect based on the first aspect, the cooling means (90) is arranged on the downstream side of the air supplied to the chamber with respect to the adsorption elements (61, 62).

    In the seventh invention, during the operation of the first operation or the second operation. The air dehumidified by the adsorption elements (61, 62) is cooled by the cooling means (90) and supplied to the room. In the first operation, the moisture in the air is adsorbed through the first adsorption element (61). The air that has passed through the first adsorption element (61) is cooled by the cooling means (90) and supplied to the room. In the second operation, the moisture in the air is adsorbed through the second adsorption element (62). The air that has passed through the second adsorption element (62) is cooled by the cooling means (90) and supplied to the room.

    According to the first aspect of the invention, since the cooling means (90) for cooling the air supplied to the room and the control means (80) for controlling the cooling capacity of the cooling means (90) are provided, the first operation is performed. Alternatively, the cooling capacity of the cooling means (90) can be controlled in accordance with the temperature of the air supplied into the room during the second operation. Thereby, the temperature of the air supplied indoors can be made into predetermined temperature. As a result, temperature fluctuations of the air supplied from the dehumidifier (10) to the room can be suppressed.

    According to the second aspect of the invention, the control means (80) controls the cooling capacity of the cooling means (90) based on the temperature of the air supplied into the room during the operation of each operation. The cooling capacity of the cooling means (90) can be controlled based on the temperature of the air. Thereby, the temperature of the air supplied indoors can be made into predetermined temperature. As a result, temperature fluctuations of the air supplied from the dehumidifier (10) to the room can be suppressed.

    According to the third aspect of the invention, since the control means (80) increases the cooling capacity of the cooling means (90) immediately after switching of each operation, the air supplied into the room after switching of each operation is changed. The cooling means (90) can cool with a high cooling capacity. That is, it is possible to cool the air supplied to the room at a high temperature after switching each operation. Thereby, it is possible to prevent the temperature of the air supplied to the room from becoming high after each operation is switched. As a result, temperature fluctuations of the air supplied from the dehumidifier (10) to the room can be suppressed.

    According to the fourth aspect, since the control means (80) increases the cooling capacity of the cooling means (90) before switching each operation, the cooling means (90) immediately after switching each operation. The cooling capacity can be increased. In other words, the cooling means (90) can cool the air supplied to the room at a high temperature immediately after the switching of each operation by increasing the cooling capacity. As a result, it is possible to prevent the temperature of the air supplied to the room immediately after the switching of each operation from becoming high. As a result, temperature fluctuations of the air supplied from the dehumidifier (10) to the room can be suppressed.

    According to the fifth aspect of the present invention, since the control means (80) maximizes the cooling capacity of the cooling means (90) immediately after switching each operation, the cooling means (80) immediately after switching each operation ( 90) cooling capacity can be maximized. That is, the cooling means (90) can cool the air supplied to the room at a high temperature immediately after switching between the operations with the maximum cooling capacity. As a result, it is possible to prevent the temperature of the air supplied to the room immediately after the switching of each operation from becoming high. As a result, temperature fluctuations of the air supplied from the dehumidifier (10) to the room can be suppressed.

    According to the sixth aspect of the invention, since the cooling means (90) is installed on the upstream side of the air of each adsorption element (61, 62), the outdoor air previously cooled on the upstream side passes through the adsorption element (61, 62). Can be made. Thereby, it is possible to prevent the air supplied to the room from passing through the adsorption element (61, 62) from being heated during each operation. As a result, temperature fluctuations of the air supplied from the dehumidifier (10) to the room can be suppressed.

    According to the seventh aspect, since the cooling means (90) is installed on the downstream side of the air of each adsorption element (61, 62), the air supplied into the room after passing through the adsorption element (61, 62) Can be cooled. Thereby, it is possible to prevent the air supplied to the room from passing through the adsorption element (61, 62) from being heated during each operation. As a result, temperature fluctuations of the air supplied from the dehumidifier (10) to the room can be suppressed.

    Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The dehumidifying apparatus of the present invention performs dehumidification in a clean room of a semiconductor factory or a room in a food factory.

<Embodiment 1>
As shown in FIGS. 1 and 2, the dehumidifying device (10) according to Embodiment 1 includes a casing (11) and a controller (80).

    The casing (11) is formed in a vertically long rectangular parallelepiped shape in the front-rear direction. The 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. Is formed. The 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 casing (11).

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

    A first partition plate (31) and a second partition plate (32) are erected in the 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).

    A heat exchanger (45) for heating is accommodated in the second suction passage (27). The heat exchanger for heating (45) is composed of, for example, a plate heat exchanger. A first inflow pipe (46) and a first outflow pipe (47) are connected to the heating heat exchanger (45) through the casing (11) (see FIG. 2). Hot water is supplied from the first inlet pipe (46) to the heating heat exchanger (45). In addition, this warm water is produced | generated using the waste heat of other heat-source equipment, such as a factory, for example. The heating heat exchanger (45) heats the air by exchanging heat between the hot water and the air. That is, the heating heat exchanger (45) constitutes a heating means for heating the adsorption elements (61, 62) by heating air. The first inflow pipe (46) is provided with a first electromagnetic valve (48) as an on-off valve. When the first electromagnetic valve (48) is closed, the supply of hot water to the heating heat exchanger (45) is stopped, and the heating heat exchanger (45) is substantially stopped. The first suction passage (27) is provided with a first frame (49) on the downstream side of the heating heat exchanger (45). The first frame (49) is formed in a plate shape along the heating heat exchanger (45) and covers the second suction passage (27). And the air opening part which can distribute | circulate the air which passed the heat exchanger for heating (45) is formed in the center part of the 1st frame (49). Except for FIG. 1, the first frame (49) is not shown.

    The air supply passage (28) accommodates an air supply fan (42), a cooling heat exchanger (90), and a first temperature sensor (81). The air supply fan (42) is a centrifugal multiblade fan (sirocco fan).

    The cooling heat exchanger (90) is constituted by, for example, a plate heat exchanger. A second inflow pipe (91) and a second outflow pipe (92) are connected to the cooling heat exchanger (90) through the casing (11) (see FIG. 2). Cooling water is supplied from the second inflow pipe (91) to the cooling heat exchanger (90). The cooling heat exchanger (90) may use a refrigerant instead of the cooling water. The cooling heat exchanger (90) cools the air by exchanging heat between the cooling water and the air supplied to the room. That is, the cooling heat exchanger (90) constitutes a cooling means for cooling the air supplied to the room. The second inflow pipe (91) is provided with a second electromagnetic valve (93) as an on-off valve. The second electromagnetic valve (93) constitutes a flow rate adjusting means for adjusting the flow rate of the cooling water. When the second electromagnetic valve (93) is closed, the supply of cooling water to the cooling heat exchanger (90) is stopped, and the cooling heat exchanger (90) is substantially stopped. A second frame (94) is installed in the supply passage (28) downstream of the cooling heat exchanger (90). The second frame (94) is formed in a plate shape along the cooling heat exchanger (90) and covers the air supply passage (28). And the air opening part which can distribute | circulate the air which passed the heat exchanger for cooling (90) is formed in the center part of the 2nd frame (94). Except for FIG. 1, the second frame (94) is not shown.

The first temperature sensor (81) is for measuring the temperature of the air upstream of the cooling heat exchanger (90) (T _SA , hereinafter the same). The first temperature sensor (81) is provided between the second partition plate (32) and the cooling heat exchanger (90), and is connected to a controller (80) described later. For this reason, the temperature data measured by the first temperature sensor (81) is sent to the controller (80).

    A central partition plate (35) is disposed between the first partition plate (31) and the second partition plate (32) in a horizontal posture, and the first adsorption chamber (51) is located above the central partition plate (35). ), The second adsorption chambers (52) are respectively defined below the central partition plate (35). The first adsorption chamber (51) accommodates the first adsorption element (61), and the second adsorption chamber (52) accommodates the second adsorption element (62).

    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 adjacent to the left and right. The adsorbing element 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 adsorbing element, 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.

    The first partition plate (31) is provided with first to fourth exhaust side dampers (71 to 78). Each exhaust side damper (71-78) comprises the opening-and-closing type damper for connecting / disconnecting each adsorption chamber (51, 52), the 1st suction passage (25), and the exhaust passage (26). 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. A fourth exhaust side damper (74) is 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 supply side dampers (71 to 78). Each supply side damper (71 to 78) constitutes an open / close damper for intermittently connecting each adsorption chamber (51, 52), the second suction passage (27) and the supply passage (28). Yes. 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 supply side damper (78) is opened and closed, the supply passage (28) and the supply side lower passage (56) are intermittently connected.

    The controller (80) is configured to start and stop the exhaust fan (41) and the air supply fan (42), open and close the dampers (71 to 78), open and close the first solenoid valve (48), and open and close the second solenoid valve (93). It is for controlling opening and closing. Specifically, the controller (80) is connected to the dehumidifier (10) and controls the start and stop of the exhaust fan (41) and the air supply fan (42), while opening and closing each damper (71 to 78). Thus, the air flow in the air passage in the casing (11) is controlled. Further, the controller (80) controls ON / OFF of the heating operation of the heating heat exchanger (45) by opening and closing the first electromagnetic valve (48). In addition, the method of turning ON / OFF the heating operation of the heat exchanger for heating (45) is not limited to this, for example, a pump for supplying hot water to the heat exchanger for heating (45) is stopped, or the first A method of switching the hot water circuit so as to bypass the hot water flowing through the inflow pipe (46) to the first outflow pipe (47) side can be employed. The controller (80) adjusts the opening degree of the second electromagnetic valve (93) based on the measurement data sent from the first temperature sensor (81), thereby cooling the cooling heat exchanger (90). The control means which controls ON / OFF of this and cooling capacity is comprised. That is, the controller (80) controls the cooling capacity of the cooling heat exchanger (90) to cool the air that has passed through the adsorption elements (61, 62) to a predetermined temperature. The method of controlling the cooling operation ON / OFF and the cooling capacity of the cooling heat exchanger (90) is not limited to the above, and for example, a pump for supplying cooling water to the cooling heat exchanger (90) is used. Or stop. For example, a method of switching the cooling water circuit so as to bypass the cooling water flowing through the second inflow pipe (91) to the second outflow pipe (92) side can be employed.

-Driving action-
A dehumidifying operation of the dehumidifying device (10) of the first embodiment will be described. In the dehumidifying operation, the exhaust fan (41) and the air supply fan (42) are each in an operating state. In the dehumidifying operation, outdoor air (OA) as first air (air indicated by arrows in black in FIG. 3, the same applies hereinafter) is taken into the casing (11) from the first inlet (20), and the second air Outdoor air (OA) as air represented by white arrows in FIG. 3 (hereinafter the same applies) is taken into the casing (11) from the second suction port (22). In the dehumidifying operation, by switching the open / closed state of each damper (71 to 78), the following first operation (hereinafter referred to as first batch operation) and second operation (hereinafter referred to as second batch operation). Are executed alternately. In the first batch operation and the second batch operation of the present embodiment, the first electromagnetic valve (48) is opened, and the heating operation is always performed in the heating heat exchanger (45), while the second electromagnetic operation is performed. The valve (93) is opened based on the temperature data of the first temperature sensor (81), and the cooling operation is performed in a timely manner in the cooling heat exchanger (90). Further, switching between the first batch operation and the second batch operation is performed every time (for example, about 5 to 10 minutes) preset in the controller (80). Moreover, in each figure for demonstrating a driving | running operation | movement to a dehumidification apparatus (10), hatching is added to the damper of a closed state, and the damper of an open state is shown with white painting.

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

    The first air taken into the first suction passage (25) from the first suction port (20) flows into the first adsorption chamber (51) from the first exhaust side damper (71). The air that has flowed into the first adsorption chamber (51) passes through the first adsorption element (61). In the first adsorption element (61), moisture (water vapor) contained in the air is adsorbed by the adsorbent. As a result, in the first adsorption element (61), air is dehumidified by such an adsorption operation. The air dehumidified by the first adsorption element (61) flows out from the second supply side damper (76) to the supply passage (28). The air that has flowed out into the air supply passage (28) passes through the cooling heat exchanger (90). In the cooling heat exchanger (90), the cooling water and air exchange heat to cool the air. The air cooled by the cooling heat exchanger (90) is supplied into the room as supply air (SA ′) after cooling.

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

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

    The first air taken into the first suction passage (25) from the first suction port (20) flows into the second adsorption chamber (52) from the third exhaust side damper (73). The air flowing into the second adsorption chamber (52) passes through the second adsorption element (62). In the second adsorption element (62), moisture (water vapor) contained in the air is adsorbed by the adsorbent. As a result, in the second adsorption element (62), air is dehumidified by such an adsorption operation. The air dehumidified by the second adsorption element (62) flows out from the fourth supply side damper (78) to the supply passage (28). The air that has flowed out into the air supply passage (28) passes through the cooling heat exchanger (90). In the cooling heat exchanger (90), the cooling water and air exchange heat to cool the air. The air cooled by the cooling heat exchanger (90) is supplied into the room as supply air (SA ′) after cooling.

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

<Batch switching operation>
In the dehumidifying apparatus (10) of Embodiment 1, moisture is saturated with the adsorbent of each adsorbing element (61, 62) by alternately performing the first batch operation and the second batch operation (excessive adsorption). It is possible to dehumidify the room continuously. 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, as shown in FIG. 5, for example, when switching from the first batch operation to the second batch operation, immediately after the end of the first batch operation, the first batch operation becomes the regeneration side. The second adsorption element (62) is heated to about 60 ° C. In this state, when the next second batch operation is performed, the second adsorption element (62) transitioning to the adsorption side is still at a high temperature, and passes through the high temperature second adsorption element (62). The temperature (T _SA ) of the supplied air (SA) is heated to about 47 ° C. and supplied to the room. Thereafter, as the second batch operation is continued, the second adsorption element (62) is cooled, and the temperature (T _SA ) of the supply air ( _SA ) is lowered (about 32 ° C.). When the second batch operation is switched to the first batch operation, immediately after the end of the second batch operation, the temperature of the first adsorption element (61) on the regeneration side in the second batch operation is raised to about 60 ° C. ing. In this state, when the next first batch operation is performed, the first adsorption element (61) transitioning to the adsorption side is still at a high temperature and passes through the high temperature first adsorption element (61). The supplied air temperature (T _SA ) is heated to about 47 ° C. and supplied to the room. Thereafter, as the first batch operation is continued, the first adsorption element (61) is cooled, and the temperature (T _SA ) of the supply air ( _SA ) is lowered (about 32 ° C.).

As described above, in the dehumidifying operation, the temperature (T _SA ) of the supply air ( _SA ) becomes the maximum temperature immediately after switching of each batch operation, and the temperature (T) of the supply air (SA) is increased as the batch operation is continued. _SA ) becomes lower. For this reason, in the dehumidifying operation, the temperature fluctuation (ΔT _SA ) 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 or the like is hindered. Therefore, in the first embodiment, particularly, the supply air (SA) immediately after switching of each batch operation is cooled to suppress the temperature fluctuation of the air supplied into the room.

(Cooling operation)
In the cooling operation, the supply air (SA) supplied to the cooling heat exchanger (90) through the adsorption elements (61, 62) among the air supplied into the room is to be cooled. The cooled air is supplied indoors as supply air (SA ′) after cooling. The cooling operation is performed by the controller (80) based on the air temperature upstream of the air of the cooling heat exchanger (90), that is, the temperature (T _SA ) of the supply air (SA). It is done by controlling. The controller (80) controls the cooling capacity of the cooling heat exchanger (90) by adjusting the opening of the second electromagnetic valve (93).

Specifically, as shown in FIG. 6, during each batch operation, measurement data of the temperature (T _SA ) of the supply air (SA) is sent from the first temperature sensor (81) to the controller (80) as needed. Sent. When each batch operation is switched, the temperature (T _SA ) of the supply air (SA) rises rapidly. When the first temperature sensor (81) detects a sudden temperature rise in the temperature (T _SA ) of the supply air (SA), the controller (80) opens the second electromagnetic valve (93) and cools the heat exchanger. Increase the cooling capacity of (90). When the temperature of the supply air (SA) _{(T SA)} is heated to a maximum temperature (approximately 47 ° C.), to the second solenoid valve fully open (93) (100% opening). At this time, the amount of cooling water flowing through the cooling heat exchanger (90) is 20 L / 1 min. In the cooling heat exchanger (90), the cooling water and the air exchange heat, the air is cooled, and the temperature (T _SA ') of the supplied air (SA') after cooling is about 35 ° C or less. Then, as the temperature of the supply air (SA) (T _SA) is gradually decreased with time, the controller (80) is narrowed stepwise second solenoid valve (93) up to 25% degree of opening. At this time, the amount of cooling water flowing through the cooling heat exchanger (90) is 5 L / 1 min. In the cooling heat exchanger (90), the cooling water and the air exchange heat, the air is cooled, and the temperature (T _SA ′) of the supplied air (SA ′) after cooling becomes about 32 ° C. That is, the controller (80) adjusts the cooling capacity of the cooling heat exchanger (90) based on the temperature of the air supplied to the room.

The air cooled by the cooling heat exchanger (90) is supplied indoors as supply air (SA ') after cooling. The temperature fluctuation (ΔT _SA ′) of the supply air (SA ′) after cooling in each batch operation changes from 35 ° C. to 32 ° C.

The closing operation of the second solenoid valve (93) in the cooling operation may not be performed based on the temperature (T _SA ) of the supply air (SA). Specifically, at the time of switching each batch operation, the second solenoid valve (93) is fully opened (opening degree 100%) and then predetermined up to a predetermined opening degree (for example, opening degree 25%). The opening of the second solenoid valve (93) is throttled during a period of time. That is, the operation related to the closing of the second electromagnetic valve (93) is performed based on the time instead of the temperature (T _SA ) of the supply air (SA).

-Effect of Embodiment 1-
According to the first embodiment, since the cooling heat exchanger (90) that cools the air that has passed through the adsorption elements (61, 62) is provided, the air (SA) supplied to the room is cooled by each batch operation. be able to. In addition, the controller (80) for controlling the cooling heat exchanger (90) is provided, and the opening degree of the second electromagnetic valve (93) is controlled based on the temperature (T _SA ) of the supply air (SA). , the temperature of the supply air (SA) (T _SA), it is possible to adjust the degree of opening of the second solenoid valve (93). That is, the temperature (T _SA ) of the supply air (SA) passing through the cooling heat exchanger (90) can be lowered after switching between batch operations. As a result, temperature fluctuations (ΔT _SA ′) of air (SA ′) supplied from the dehumidifier to the room before and after switching between batch operations can be suppressed.

<Modification 1>
The dehumidifying device (10) according to the first modification of the first embodiment performs a cooling operation different from that of the first embodiment. In the first modification, the cooling capacity of the cooling heat exchanger (90) is set to the maximum capacity immediately after the switching of each batch operation. The cooling operation of the first modification is performed by the controller (80) controlling the opening degree of the second electromagnetic valve (93) based on the switching timing of each batch operation.

    Specifically, as shown in FIG. 7, when the dehumidifier (10) starts operation, each batch operation is started. Each batch operation is set to switch in about 5 minutes (300 s).

Here, the controller (80) opens the second electromagnetic valve (93) 15s before each batch operation is switched, and the second before the temperature (T _SA ) of the supply air ( _SA ) reaches the maximum. The solenoid valve (93) is fully open. That is, the controller (80) increases the cooling capacity before switching each batch operation. Then, after the second electromagnetic valve (93) is fully opened, each batch operation is switched after 15 seconds. That is, the controller (80) sets the cooling capacity of the cooling heat exchanger (90) to the maximum capacity during the 15s. In this state, when each batch operation is switched, the supply air (SA) can be cooled with the maximum cooling capacity even immediately after the switching. Then, as the temperature of the supply air (SA) (T _SA) is gradually decreased with time, the controller (80) and the second solenoid valve (93) stepwise closing (25% opening) . In the cooling heat exchanger (90), the cooling water and air exchange heat to cool the air. The air cooled by the cooling heat exchanger (90) is supplied into the room as supply air (SA ′) after cooling.

In the first modification, the second electromagnetic valve (93) is opened 15s before the controller (80) switches each batch operation to increase the cooling capacity of the cooling heat exchanger (90). did. For this reason, immediately after switching of each batch operation, the cooling capacity of the cooling heat exchanger (90) can be made high. That is, if the second solenoid valve (93) is opened after switching each batch operation, the time for exhibiting the cooling capacity is delayed (the cooling capacity is reduced) by the heat capacity of the cooling heat exchanger (90). However, by starting the cooling operation in advance before switching each batch operation, the maximum cooling capacity can be exhibited even immediately after switching each batch operation. Thereby, the temperature fluctuation (T _SA 'fluctuation) of the air (SA') supplied from the dehumidifier (10) to the room before and after the switching of each batch operation can be suppressed. Other configurations, operations, and effects are the same as those of the first embodiment.

<Modification 2>
The dehumidifying device (10) according to the second modification of the first embodiment performs a cooling operation different from that of the first embodiment. In the second modification, when the temperature of the air supplied to the room through the adsorption element (61, 62), that is, the temperature (T _SA ) of the supply air ( _SA ) reaches the maximum temperature, the cooling heat exchanger The cooling capacity of (90) is set to the maximum capacity. In the cooling operation of the second modification, the controller (80) uses the second solenoid valve based on the air temperature upstream of the air of the cooling heat exchanger (90), that is, the temperature (T _SA ) of the supply air (SA). This is done by controlling the opening of (93).

    Specifically, as shown in FIG. 8, when the dehumidifying device (10) starts operation, each batch operation is started. Each batch operation is set to switch in about 5 minutes (300 s).

First, in S1 to S5, an instant at which the temperature (T _SA ) of the supply air ( _SA ) reaches the maximum temperature is obtained. The heating heat exchanger (45) is heated by supplying hot water therein. When the heating heat exchanger (45) reaches a predetermined temperature (S1), the first temperature sensor (81) starts measuring the temperature (T _SA ) of the supply air (SA) (S2). The temperature measurement is continuously performed a plurality of times at predetermined intervals, and the measurement result is sent to the controller (80) as needed. Then, the temperature of the supply air (SA) at the current measurement (n-th) _{(T SA} (n)) is the temperature of the previous measurement ((n-1) th) supplied with air (SA) _{(T SA} If it is greater than (n-1)), the controller (80) determines that each batch operation has been switched (S3). Further, the temperature (T _SA (n + 1)) of the supply air (SA) in the next measurement ((n + 1) th time) is the temperature (T) of the supply air (SA) in the current measurement (nth time). If it is smaller than _SA (n)), the controller (80) determines that the temperature (T _SA ) of the supply air (SA) has reached the maximum temperature (S4 and S5). Therefore, the moment when the supply air (SA) reaches the maximum temperature can be obtained by executing S2 to S5.

Next, in S6 to S9, the time required for the cooling capacity of the cooling heat exchanger (90) to reach the maximum capacity is obtained. Specifically, after opening the second electromagnetic valve (93), the time required for the outlet temperature (T _CHout ) of the cooling heat exchanger (90) to _{reach the} minimum temperature is obtained. The controller (80) opens the second electromagnetic valve (93) and starts time measurement at the same time (S6). Then, measurement of the outlet temperature (T _CHout ) of the cooling heat exchanger (90) is started. The temperature measurement is continuously performed a plurality of times at predetermined intervals, and the measurement result is sent to the controller (80) as needed. Then, the outlet temperature (T _CHout (n)) in the current measurement (n-th) is substantially the same as the outlet temperature (T _CHout (n-1)) in the previous measurement ((n-1) -th). Then, the controller (80) determines that the outlet temperature (T _CHout ) of the cooling heat exchanger (90) has reached the minimum temperature, and stops the time measurement (S6 to S9). At this time, let t (s) be the time elapsed from the start of the time measurement to the stop. That is, the cooling capacity of the heat exchanger for cooling (90) becomes maximum when t (s) has elapsed since the opening of the second electromagnetic valve (93). Here, when t (s) is within the range of 0 (s) ≦ t (s) ≦ 30 (s), the controller (80) determines the next opening timing of the second electromagnetic valve (93). Then, t (s) before the opening timing of the second electromagnetic valve (93) this time (S10 and S11). In the range of 0 (s) ≦ t (s) ≦ 30 (s), the upper and lower limits may be changed depending on the installation environment conditions of the dehumidifier (10). On the other hand, when 30 (s) <t (s), the controller (80) determines the next opening timing of the second electromagnetic valve (93) from the opening timing of the second electromagnetic valve (93) this time. Before t1 (s) (S12). The predetermined time t1 (s) is an arbitrary value that varies depending on the installation environment conditions of the dehumidifier (10) and is set in advance. As described above, the above-described S2 to S12 are repeatedly executed during the operation of the dehumidifying device (10), so that the cooling capacity of the cooling heat exchanger (90) when the supply air (SA) reaches the maximum temperature. Can be maximized.

In the second modification, the time t (s) required until the cooling heat exchanger (90) exhibits the maximum cooling capacity is obtained, and t (( s) The second solenoid valve (93) was opened before. Thereby, when the temperature (T _SA ) of the supply air (SA) reaches the maximum temperature, the cooling heat exchanger (90) can be set to the maximum cooling capacity. As a result, the temperature fluctuation (ΔT _SA ′) of the air (SA ′) supplied from the dehumidifier (10) to the room before and after switching of each batch operation can be suppressed. Other configurations, operations, and effects are the same as those of the first embodiment.

<Modification 3>
The dehumidifying device (10) according to the third modification of the first embodiment performs a cooling operation different from that of the first embodiment. In the third modification, the cooling capacity of the cooling heat exchanger (90) is set to the maximum capacity immediately after switching of each batch operation. In the cooling operation of the third modification, the controller (80) controls the opening degree of the second electromagnetic valve (93) based on the timing of switching each batch operation and the temperature (T _SA ) of the supply air (SA). It is done by doing.

    Specifically, as shown in FIG. 9, when the dehumidifying device (10) starts operation, each batch operation is started. Each batch operation is set to switch in about 5 minutes (300 s).

First, in S1 to S4, the instant at which the temperature of the supply air (SA) becomes the maximum temperature after switching between batch operations is obtained. The heating heat exchanger (45) is heated by supplying hot water therein. After the heating heat exchanger (45) reaches a predetermined temperature (S1), when a predetermined time elapses, each batch operation is switched. At this time, measurement of the temperature (T _SA ) of the supply air (SA) is started (S2). The temperature measurement is continuously performed a plurality of times at predetermined intervals, and the measurement result is sent to the controller (80) as needed. Then, the temperature of the supply air at the current measurement (n-th) (SA) _{(T SA} (n)) is the temperature of the previous measurement ((n-1) times) the supply air at (SA) _{(T SA} If it is smaller than (n-1)), the controller (80) determines that the temperature (T _SA ) of the supply air (SA) has reached the maximum temperature (S3 and S4). Therefore, the moment when supply air (SA) becomes the maximum temperature can be obtained by executing S2 to S4.

Next, in S5 to S8, the time required for the cooling capacity of the cooling heat exchanger (90) to reach the maximum capacity is obtained. Specifically, after opening the second electromagnetic valve (93), the time required for the outlet temperature (T _CHout ) of the cooling heat exchanger (90) to _{reach the} minimum temperature is obtained. The controller (80) opens the second electromagnetic valve (93) and starts measuring time (S5). Then, measurement of the outlet temperature (T _CHout ) of the cooling heat exchanger (90) is started. The temperature measurement is continuously performed a plurality of times at predetermined intervals, and the measurement result is sent to the controller (80) as needed. Then, the outlet temperature (T _CHout (n)) in the current measurement (n-th) is substantially the same as the outlet temperature (T _CHout (n-1)) in the previous measurement ((n-1) -th). Then, the controller (80) determines that the outlet temperature (T _CHout ) of the cooling heat exchanger (90) has reached the minimum temperature, and stops time measurement (S5 to S8). At this time, let t (s) be the time elapsed from the start of the time measurement to the stop. That is, the cooling capacity of the heat exchanger for cooling (90) becomes maximum when t (s) has elapsed since the opening of the second electromagnetic valve (93). Here, when t (s) is within the range of 0 (s) ≦ t (s) ≦ 30 (s), the controller (80) determines the next opening timing of the second electromagnetic valve (93). The time is now t (s) before the opening timing of the second electromagnetic valve (93) this time (S9 and S10). In the range of 0 (s) ≦ t (s) ≦ 30 (s), the upper and lower limits may be changed depending on the installation environment conditions of the dehumidifier (10). On the other hand, when 30 (s) <t (s), the controller (80) determines the next opening timing of the second electromagnetic valve (93) from the opening timing of the second electromagnetic valve (93) this time. Before t1 (s) (S11). The predetermined time t1 (s) is an arbitrary value that varies depending on the installation environment conditions of the dehumidifier (10) and is set in advance. In this way, by repeating the above S2 to S11 during the operation of the dehumidifying device (10), when the supply air (SA) reaches the maximum temperature immediately after switching of each batch operation, the heat exchange for cooling is performed. The cooling capacity of the vessel (90) can be maximized.

In the third modification, the time t (s) required until the cooling heat exchanger (90) exhibits the maximum cooling capacity is obtained, and the supply air (SA) is set to the maximum temperature after switching each batch operation. The second solenoid valve (93) was opened before t (s) before that time. Thereby, immediately after switching of each batch operation, the cooling heat exchanger (90) can be set to the maximum cooling capacity. That is, the cooling heat exchanger (90) can exert a maximum cooling capacity when the temperature of the supply air (SA) (T _SA) becomes maximum temperature. As a result, the temperature fluctuation (ΔT _SA ′) of the air (SA ′) supplied from the dehumidifier (10) to the room before and after switching of each batch operation can be suppressed. Other configurations, operations, and effects are the same as those of the first embodiment.

<Embodiment 2 of the invention>
The dehumidifying device (10) according to the second exemplary embodiment measures the temperature (T _SA ′) of the supplied air (SA ′) after cooling, as shown in FIG. 10, instead of the dehumidifying device in the first exemplary embodiment described above. The second temperature sensor (82) is provided. In the dehumidifying apparatus (10) of the second embodiment, the cooling capacity of the cooling heat exchanger (90) is adjusted based on the temperature (T _SA ') of the supplied air (SA') after cooling. It is. The cooling operation is performed by the controller (80) controlling the opening degree of the second electromagnetic valve (93).

Specifically, when the dehumidifying device (10) starts operation, each batch operation is started. Each batch operation is set to switch in about 5 minutes (300 s). When each batch operation is switched, the temperature (T _SA ) of the supply air (SA) that has passed through the adsorption element on the regeneration side immediately before the batch operation rapidly increases. When the first temperature sensor (81) detects the rapid temperature rise of the supply air (SA), the controller (80) fully opens the second electromagnetic valve (93) (opening degree: 100%). The controller (80) gradually increases the second solenoid valve (93) to the minimum opening (25%) with the temperature (T _SA ) of the supply air (SA) that gradually decreases with time. squeeze.

During the operation, the second temperature sensor (82), 'the temperature of (T _SA supply air after cooling at the maximum opening degree of the second solenoid valve (93) (SA)'), and at the time of the minimum opening The temperature (T _SA ′) of the supply air (SA ′) after cooling is measured. Then, the controller (80) calculates the temperature difference (ΔT _SA ′) between the two temperatures. Next, 'the temperature of (T _SA supply air after the maximum time opening the cooling of the second solenoid valve (93) (SA)') is a second solenoid valve minimum opening time after cooling of (93) When the temperature of the supply air (SA ′) is higher than the temperature (T _SA ′), the controller (80) reduces the minimum opening of the second solenoid valve (93) to 25% or less after the next batch operation switching. Like that. As a result, the temperature (T _SA ′) of the supplied air (SA ′) after cooling at the time of the minimum opening of the second solenoid valve (93) after the next batch operation switching is increased. In addition, as shown in FIG. 11, you may make the minimum opening degree of a 2nd solenoid valve (93) into 0%.

On the other hand, 'temperature (T _SA supply air after cooling at the maximum opening of the second solenoid valve (93) (SA)') is supplied after cooling during the minimum opening of the second solenoid valve (93) When the temperature is lower than the temperature of air (SA ′) (T _SA ′), the controller (80) opens the minimum opening of the second solenoid valve (93) to 25% or more after the next batch operation switching. To. As a result, the temperature (T _SA ′) of the supplied air (SA ′) after cooling at the time of the minimum opening of the second solenoid valve (93) after the next batch operation switching is lowered.

In Embodiment 2, of the 'temperature (T _SA supply air during the operation of each batch operation (SA)'), and temperature immediately after switching the each batch operation, then the temperature immediately before switching the batch operation On the basis of the temperature difference (ΔT _SA ′), the opening degree of the second electromagnetic valve (93) at the minimum opening degree after the switching of each batch operation after the next time is adjusted. That is, the temperature difference (ΔT _SA ) between the temperature of the supply air (SA ′) cooled with the maximum cooling capacity of the cooling heat exchanger (90) and the temperature of the supply air (SA ′) cooled with the minimum cooling capacity. The opening of the second solenoid valve (93) when the cooling capacity is minimum is adjusted so that ') is reduced. Thereby, the temperature fluctuation (ΔT _SA ′) of the air (SA ′) that passes through the cooling heat exchanger (90) and is supplied indoors can be suppressed before and after the switching of each batch operation. Other configurations, operations, and effects are the same as those of the first embodiment.

Embodiment 3 of the Invention
In the dehumidifying device (10) according to the third embodiment, the first temperature sensor (81) is not provided as shown in FIG. 12 instead of the dehumidifying device in the first embodiment described above. In the dehumidifying apparatus (10) according to Embodiment 3, the cooling capacity of the cooling heat exchanger (90) is adjusted based on the switching operation of each batch operation. The cooling operation is performed by the controller (80) controlling the opening degree of the second electromagnetic valve (93).

Specifically, when the dehumidifying device (10) starts operation, each batch operation is started. Each batch operation is set to switch in about 5 minutes (300 s). Immediately after each batch operation is switched, the controller (80) fully opens the second solenoid valve (93) (opening degree: 100%). The controller (80) gradually increases the second solenoid valve (93) to the minimum opening (25%) with the temperature (T _SA ) of the supply air (SA) that gradually decreases with time. squeeze. That is, the controller (80) increases the cooling capacity of the cooling heat exchanger (90) immediately after switching between batch operations. Therefore, the supply air (SA) that has passed through the adsorption element on the regeneration side immediately before switching each batch operation and is in a high temperature state is cooled with the maximum cooling capacity. The opening / closing operation of the second electromagnetic valve (93) is repeatedly performed by the controller (80) every time each batch operation is switched. In addition, as shown in FIG. 11, you may make the minimum opening degree of a 2nd solenoid valve (93) into 0%.

According to the third embodiment, since the second electromagnetic valve (93) is fully opened immediately after each batch operation is switched, the cooling capacity of the cooling heat exchanger (90) can be increased after the batch operation is switched. Thereby, the air (SA) supplied in a high temperature state after switching of each batch operation can be reliably cooled. As a result, the temperature fluctuation (ΔT _SA ′) of the air (SA ′) supplied from the dehumidifier (10) to the room before and after switching of each batch operation can be suppressed. Other configurations, operations, and effects are the same as those of the first embodiment.

<Embodiment 4 of the Invention>
The dehumidifying device (10) according to the fourth embodiment replaces the dehumidifying device according to the first embodiment described above with the cooling heat exchanger (90) as the air of the adsorption elements (61, 62) as shown in FIG. It is designed to be installed on the upstream side. The cooling operation according to the fourth embodiment is supplied to the cooling heat exchanger (90) before passing through the adsorption elements (61, 62) in the outdoor air (OA) taken into the casing (11). Air is the target for cooling. The air cooled by the cooling heat exchanger (90) passes through the adsorption elements (61, 62) as outdoor air (OA ′) after cooling, although not shown. The air that has passed through the adsorption elements (61, 62) is supplied into the room as supply air (SA). The cooling operation adjusts the cooling capacity of the cooling heat exchanger (90) based on the temperature of the air downstream of the adsorbing element (61, 62), that is, the temperature (T _SA ) of the supply air (SA). It is what I did. The cooling operation is performed by the controller (80) controlling the opening degree of the second electromagnetic valve (93).

Specifically, when the dehumidifying device (10) starts operation, each batch operation is started. Each batch operation is set to switch in about 5 minutes (300 s). During each batch operation, measurement data of the temperature (T _SA ) of the supply air (SA) is sent from the first temperature sensor (81) to the controller (80) as needed. When each batch operation is switched, the temperature (T _SA ) of the supply air (SA) rises rapidly. When the first temperature sensor (81) detects this sudden increase in the temperature of the supply air (SA), the controller (80) opens the second solenoid valve (93) to cool the cooling heat exchanger (90). To increase. When the temperature of the supply air (SA) _{(T SA)} is heated to a maximum temperature (approximately 47 ° C.), to the second solenoid valve fully open (93) (100% opening). At this time, the amount of cooling water flowing through the cooling heat exchanger (90) is 20 L / 1 min. In the cooling heat exchanger (90), the cooling water and air exchange heat, the air is cooled, and the outdoor air (OA ') after cooling passes through the adsorption element (61, 62). To do. Thereby, the temperature rise of supply air (SA) is reduced. Thereafter, as the temperature of the adsorption element (61, 62) transitioned to the adsorption side gradually decreases with time, the second electromagnetic valve (93) is throttled stepwise to 25%. At this time, the amount of cooling water flowing through the cooling heat exchanger (90) is 5 L / 1 min. In the cooling heat exchanger (90), the cooling water and air exchange heat to cool the air. The air cooled by the cooling heat exchanger (90) passes through the adsorption elements (61, 62) as outdoor air (OA ′) after cooling. And the air which passed the adsorption | suction element (61, 62) is supplied indoors as supply air (SA). In the fourth embodiment, the second electromagnetic valve (93) may be opened before switching each batch operation. Thereby, the temperature of supply air (SA) immediately after switching of each batch operation can be reduced.

According to the fourth embodiment, since the cooling heat exchanger (90) is provided on the upstream side of the air of the adsorption element (61, 62), the outdoor air (OA ′) cooled in advance on the upstream side is used as the adsorption element (61 , 62). In addition, the controller (80) for controlling the cooling heat exchanger (90) is provided, and the opening degree of the second solenoid valve (93) is adjusted based on the temperature (T _SA ) of the supply air (SA). , it can be opened when the temperature of the supply air (SA) (T _SA) is heated to a high temperature, the second solenoid valve (93). That is, it is possible to prevent the temperature (T _SA ) of the air (SA) supplied to the room immediately after switching between the batch operations from becoming high. As a result, the temperature fluctuation (ΔT _SA ) of the air (SA) supplied from the dehumidifier (10) to the room before and after the switching of each batch operation can be suppressed. Other configurations, operations, and effects are the same as those of the first embodiment.

<Other embodiments>
This invention is good also as following structures about the said Embodiment 1-4.

    In the first to fourth embodiments, the cooling heat exchanger (90) in which the cooling water circulates is used as the cooling means. However, the present invention provides, for example, the cooling heat exchanger (90) in which the refrigerant circulates. You may make it use. Further, the cooling means is not limited to the heat exchanger.

    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 measures against temperature fluctuations in air supplied from a dehumidifier into a room.

It is a schematic perspective view which shows the dehumidification apparatus which concerns on this Embodiment 1. It is a schematic sectional drawing which shows the dehumidification apparatus which concerns on this Embodiment 1. It is a schematic sectional drawing which shows the 1st batch operation | movement of the dehumidification apparatus which concerns on this Embodiment 1. FIG. It is a schematic sectional drawing which shows the 2nd batch operation | movement of the dehumidification apparatus which concerns on this Embodiment 1. FIG. It is a figure which shows the relationship between the time in each batch operation | movement which concerns on this Embodiment 1, and supply air temperature. It is a figure which shows the relationship between the time which concerns on this Embodiment 1, and the 2nd solenoid valve opening degree, the amount of cooling water, supply air temperature, and the supply air temperature after cooling. It is a figure which shows the relationship between the time which concerns on the modification 1 of this Embodiment 1, and cooling capacity. It is a flowchart figure which shows the cooling operation which concerns on the modification 2 of this Embodiment 1. FIG. It is a flowchart figure which shows the cooling operation which concerns on the modification 3 of this Embodiment 1. FIG. It is a schematic sectional drawing which shows the dehumidification apparatus which concerns on this Embodiment 2. It is a figure which shows the relationship between the time which concerns on this Embodiment 2 and 3, and the 2nd solenoid valve opening degree. It is a schematic sectional drawing which shows the dehumidification apparatus which concerns on this Embodiment 3. It is a schematic sectional drawing which shows the dehumidification apparatus which concerns on this Embodiment 4. It is a figure which shows the relationship between the time which concerns on a prior art, and regeneration temperature and supply air temperature.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Dehumidifier 11 Casing 45 Heat exchanger 61 for heating 61st adsorption element 62 2nd adsorption element 80 Controller 90 Heat exchanger for cooling

Claims (7)

A casing (11) through which air flows, two adsorbing elements (61, 62) that are provided inside the casing (11) and adsorb moisture in the air, and provided in the casing (11), Heating means (45) for heating the air supplied to the adsorption element (61, 62),
A first operation for supplying air having moisture adsorbed by the first adsorbing element (61) into the room, while allowing the air heated by the heating means (45) to pass through the second adsorbing element (62) and exhausting it outside the room. When,
A second operation in which air having moisture adsorbed by the second adsorbing element (62) is supplied to the room and the air heated by the heating means (45) is passed through the first adsorbing element (61) and discharged to the outside. Is a dehumidifying device that executes by alternately switching between and
Cooling means (90) for cooling the air supplied into the room by the first operation or the second operation;
A dehumidifying device comprising: control means (80) for controlling the cooling capacity of the cooling means (90) so that the air supplied to the room has a predetermined temperature. In claim 1,
The dehumidifying device, wherein the control means (80) controls the cooling capacity of the cooling means (90) based on the temperature of the air supplied into the room. In claim 1,
The dehumidifying device, wherein the control means (80) controls the cooling means (90) so as to increase the cooling capacity immediately after switching the operations. In claim 1,
The dehumidifying device, wherein the control means (80) controls the cooling means (90) so as to increase the cooling capacity before switching the operations. In claim 4,
The dehumidifying device, wherein the control means (80) controls the cooling means (90) so that the cooling capacity becomes maximum immediately after switching the operations. In claim 1,
The dehumidifying device, wherein the cooling means (90) is arranged on the upstream side of the air supplied to the chamber with respect to the adsorbing elements (61, 62). In claim 1,
The dehumidifying device, wherein the cooling means (90) is arranged on the downstream side of the air supplied to the chamber with respect to the adsorption elements (61, 62).

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