KR20060021225A - Control unit of vapor exhaust valve for adsorption type dehumidifying cabinet - Google Patents

Abstract

The present invention relates to a control device of a dehumidification cabinet for stably storing items that can be damaged by moisture in the air such as electronic assembly parts, semiconductors, lenses, films, etc., in which a space for maintaining low humidity inside is provided. A dehumidifying cabinet body formed therein, and an adsorbent for adsorbing and dehumidifying the air inside the dehumidifying cabinet body, and in contact with the dehumidifying cabinet body during dehumidification together with a moisture discharge port that sucks outside air during regeneration and discharges humid air passing through the adsorbent. An adsorbent container comprising an upper and lower absorption port; and a regenerative heating unit for heating and regenerating the adsorbent in the adsorbent container; and the upper and lower absorption ports are closed when the water discharge port is opened, and the water discharge port is closed when the upper and lower suction ports are opened. A shutter of the upper and lower parts which are supported at one central portion and rotated; and to rotate the shutter. And a control unit for controlling the operation of the transmission unit. The adsorbent container includes a temperature sensor for measuring the temperature of the adsorbent. The temperature sensor is connected to the control unit. It is characterized in that for controlling the opening and closing of the water discharge port in accordance with the temperature change of the temperature sensor.

Dehumidification cabinet, controller, water outlet, adsorbent

Description

Control unit of vapor exhaust valve for adsorption type dehumidifying cabinet             

1, 2 is a configuration diagram of a dehumidifying apparatus according to the prior art,

Figure 3 is a temperature, humidity change with time showing the humidity phenomena in the prior art,

4 is a schematic configuration diagram showing an adsorption type dehumidification cabinet according to the present invention;

5 is a block diagram of a water discharge port control apparatus according to a first embodiment of the present invention,

6 is a block diagram of a water discharge port control apparatus according to a second embodiment of the present invention,

7 is a test measurement for the opening timing control according to the present invention,

8 is a test measurement when the water outlet at the adsorbent 100 ℃ after the heater is turned off,

9 is a test measurement when the water outlet at the adsorbent 95 ℃ after the heater is turned off,

10 is a test measurement when the water outlet at the adsorbent 90 ℃ after the heater is OFF,

11 is a test measurement when the water outlet is closed at the adsorbent 85 ℃ after the heater OFF,

12 is a test measurement when the water outlet at the adsorbent 80 ℃ after the heater is turned off,

13 is a test measurement when the water outlet at the adsorbent 75 ℃ after the heater is turned off,

14 is a comparative test measurement diagram of a device according to the present invention with the conventional method,

* Description of Signs for Main Parts in Drawings *

1,100: dehumidification cabinet body 4a, 4b: moisture absorption port

5a, 5b: Water discharge port 8a, 8b: Shutter

116a, 116b: Shutter 10: shape memory alloy

120: adsorbent container 121: motor

122: diagonal member 123: power transmission port

131: solenoid 132: connecting member

133: tension spring

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moisture removing apparatus for stably storing articles that can be damaged by moisture in the air, such as electronic assembly parts, semiconductors, lenses, and films, in a low humidity state. The present invention relates to a control device of an adsorption dehumidification cabinet that can improve reliability by preventing hunting from entering external air by controlling operation and controlling opening and closing time.

Conventionally, a dehumidifying apparatus for stably storing various articles in a low humidity state in an interior room (inner room) in a dry state is disclosed, for example, in Japanese Utility Model Publication No. 63-40788. 1 and 2 are shown.

1 and 2, in the conventional moisture removing device, member number 1 is dried, 2 is a desiccant container, 3 is a desiccant, and 4a and 4b are provided above and below the desiccant container 2, respectively. Absorption ports (5a, 5b) communicating with the interior of the drying chamber (1), respectively, are provided in the desiccant container (2) adjacent to the moisture absorption ports (4a, 4b), and exhaust ports and intake ports communicating with outside air (external). , 6a, 6b are shutters disposed adjacent to the moisture absorbing openings 4a, 4b, the exhaust openings 5a, and the inlet openings 5b above and below the desiccant container 2, respectively. Shutter elements for opening and closing the spheres 4a and 4b, 8a and 8b are shutter elements for opening and closing the exhaust port 5a and the intake port 5b, and 9a and 9b are linked to the shutters 6a and 6b, respectively. Lever, 10 is a shape memory alloy coil contracted by heating, 11a, 11b is a link connecting the ends of the shape memory alloy coil 10 and one end of the lever (9a, 9b), respectively, Heating member 13 for heating the shape memory alloy coil group (10) is a tension spring connecting the other end of the lever (9a, 9b). Desiccants are usually silica gel, alumina gel, activated alumina, molecular sieves or synthetic zeolites.

In the conventional moisture removing device configured as described above, when the shape memory alloy coil 10 is heated so that the heating temperature is higher than the operating point temperature of the coil 10, the coil 10 is contracted and at this time, the link ( As the levers 9a and 9b connected by 11a and 11b are rotated, the shutters 6a and 6b close the moisture intake ports 5a and 5b as shown in Fig. 1, and conversely, the upper exhaust port 5a and the lower intake port. (5b) is opened. In this case, air flows in through the lower inlet port 5b, and the adsorbed moisture of the desiccant 3 becomes hot air and is discharged to the outside through the upper exhaust port 5a. If this condition lasts for about 30 minutes, the desiccant 3 is completely regenerated. After about 30 minutes, when the heating of the shape memory alloy coil 10 is stopped by a timer (not shown), the temperature of the shape memory alloy coil 10 is gradually lowered, and thus the shape memory alloy coil 10 ) Becomes below the operating point temperature, and the retracting force of the tension spring 13 becomes dominant, thereby inverting the levers 9a and 9b and the shutters 6a and 6b. When such an inversion is made, the upper exhaust port 5a and the lower intake port 5b communicating with the outside air are closed, and the moisture absorbing ports 4a and 4b communicating with the inside of the dryer 1 are opened, so that the desiccant 3 It absorbs moisture. Such hygroscopic action proceeds for about 5 hours 30 minutes, for example, and reduces the humidity in a dry cell. After about 5 hours and 30 minutes have elapsed, the timer enters the regeneration action as described above, and this action is repeated to keep the interior of the drying chamber 1 at low humidity.

Adsorption dehumidifier dehumidification characteristics as described above are shown in FIG. FIG. 3 shows that the air inside the cabinet is set to 30 ° C. and 80% air condition as the external air condition when the power of the adsorption module is stopped, and then the power is supplied. After about 200 minutes, the relative humidity in the dehumidification cabinet is about 3 It is shown to decrease by%. When the test operation time is 24 hours, the heater mounted in the adsorption module is operated for regeneration of the adsorption module every 5 hours and 30 minutes. However, as shown in FIG. 3, the temperature and humidity in the dehumidification cabinet are increased to some extent during the regeneration time (starting regeneration after 330 minutes), and when the regeneration ends, the original temperature and the low humidity are returned. When the adsorbent is regenerated, the time required for heating the shape memory alloy for the full opening of the water discharge port is about 5 minutes, and after 2 minutes, the discharge port starts to open slowly. At this time, high humidity air flows back into the dehumidification cabinet and humidity hunting is performed. Will occur. In addition, high humidity air flows in from the outside for 25 minutes, which is the time it takes for the water outlet to close completely after the regeneration heater is shut down. This causes a problem that the humidity in the dehumidification cabinet rises during regeneration. In other words, this is a disadvantage of the shape memory alloy because it does not immediately react to the heater operation and termination.

The present invention is to solve the problems of the humidity hunting as described above, the control of the water discharge port controlled by the temperature of the adsorbent while forcibly controlling the opening and closing of the water discharge port in the opening and closing device of the shape memory alloy operation water discharge port that is automatically opened and closed conventionally The purpose is to provide a device.

Another object of the present invention is to provide an apparatus for controlling a water outlet of an adsorption cabinet that maintains a constant dehumidification state and minimizes power consumption by presenting an opening / closing time of a water outlet that maximizes a dehumidification effect.

In order to achieve the above object, in the present invention, a dehumidifying cabinet body formed with a space for maintaining a low humidity therein; and,

An adsorbent container for storing an adsorbent for adsorbing and dehumidifying the air inside the dehumidifying cabinet main body, and an upper and lower dehumidifying port communicating with the dehumidifying cabinet main body when dehumidifying together with a water discharge port that sucks outside air during regeneration and discharges wet air passing through the adsorbent; Wow

A regenerative heating unit for heating and regenerating the adsorbent in the adsorbent vessel; and

Upper and lower shutters that are rotated by being supported at one side of the central part such that the upper and lower suction holes are closed when the moisture discharge port is opened and the moisture discharge holes are closed when the upper and lower suction holes are opened.

An apparatus for controlling a water outlet of an adsorption-type dehumidification cabinet is proposed, comprising: a transmission unit for driving the upper, shutter and lower shutters; and a control unit for controlling the operation of the transmission unit.

In addition, in the present invention, the adsorbent container includes a temperature sensor for measuring the temperature of the adsorbent, the temperature sensor is connected to the control unit, the transmission unit opening and closing the water discharge port in accordance with the temperature change of the temperature sensor An apparatus for controlling a water outlet of an adsorption cabinet, which is characterized in that it is controlled, is proposed.

In the present invention, as a first embodiment of the transmission unit, a diagonal member for hinge connecting the upper shutter one side and the lower shutter one side in a diagonal direction; and the diagonal member and the electric motor are driven by the rack and pinion to rotate the electric motor. Accordingly, a device for controlling a water outlet of an adsorption type dehumidifying cabinet is proposed, in which a diagonal member is moved to drive shutters of upper and lower portions.

In addition, the second embodiment of the present invention comprises a coil spring for connecting the upper shutter one side and the lower shutter one side as a second embodiment of the transmission unit; and a solenoid for driving the upper and lower shutters, respectively; An apparatus for controlling the water outlet of an adsorption type dehumidification cabinet is proposed.

In addition, in the control device of the opening and closing time of the water discharge port of the present invention, the water discharge port is opened after the regenerative heating unit is operated, the temperature of the adsorbent is opened below the set temperature, the closing of the water outlet is the natural cooling after the regeneration is finished While being characterized in that the temperature of the adsorbent is made below the closed set temperature.

In addition, in the moisture discharge port control apparatus of the adsorption-type dehumidification cabinet of the present invention, the open set temperature and the closed set temperature is characterized in that it is set to the lowest temperature of the adsorbent that does not cause humidity hunting inside the dehumidification cabinet body.

(Example)

Hereinafter, with reference to the accompanying drawings, the water outlet control device of the adsorption-type dehumidification cabinet according to the present invention will be described in detail.

4 and 5 are open and close views showing the water discharge port control apparatus according to the present invention.

First, there is shown an adsorption type dehumidification cabinet 100 according to the present invention. The interior of the dehumidification cabinet is formed with a space for maintaining a low humidity, and on one side of the dehumidification cabinet body, an adsorbent for adsorbing and dehumidifying air inside is stored. An adsorbent container 120 including an upper and lower absorption port communicating with the dehumidifying cabinet body during dehumidification is disposed along with a water discharge port that sucks outside air during regeneration and discharges wet air passing through the adsorbent. The space for maintaining the low humidity inside the adsorbent container and the dehumidification cabinet is communicated by a moisture absorption port formed in the upper and lower portions. That is, when the moisture absorbing port is closed, the space inside is sealed, and when the moisture absorbing port is opened, the space inside is in communication with the adsorbent container.

A regeneration heater (not shown) is formed in the adsorbent container to heat and regenerate the adsorbent. In addition, the adsorbent container 120 is in communication with the outside air by the water discharge ports provided in the upper and lower sides to discharge moisture from the adsorbent by the outside air during regeneration. When the water outlet is open, the moisture outlet communicating with the inside of the dehumidification cabinet is closed. When the water discharge port is closed, dehumidification is performed in the interior space through the moisture absorption port. Opening and closing control of the moisture discharge port and the moisture absorption port is made at the same time and made by the upper and lower shutters.

FIG. 5 shows a first embodiment of the present invention, which is composed of an electric motor and an upper shutter 116a and a lower shutter 116b operated by the motor. When the motor 121, which is an electric motor, rotates, the diagonal member 122 hinged to the left end of the upper shutter and the right end of the lower shutter makes linear movement. That is, as shown in the figure, when the motor rotates in the direction of ①, the diagonal member moves linearly upwards, and thus the upper and lower shutters simultaneously move in the direction of closing the water outlet. The shutter of Fig. 5 shows a state in which the water discharge port is closed and the moisture absorption port is open.

There may be various mechanisms for converting the rotational motion of the motor into the linear motion of the diagonal member, but the rack and pinion gear 123 are shown in the drawing. Although not described in detail in the present invention, the mechanism for converting the rotary motion into a linear motion may be modified in various ways according to those skilled in the art.

6 shows the operation principle of the shutter according to the second embodiment of the present invention. Solenoid valves 131 and 132, which are electric parts for operating the upper and lower shutters independently, are shown. The solenoid valves are connected to one end of the upper shutter and the lower shutter by connecting members 133, respectively. On the other hand, the other ends of the upper and lower shutters are connected by a spring. When the solenoid valve is operated, the connecting member is pulled to open the water discharge port. When the solenoid valve stops operating, the restoring force by the spring acts again to stop the water discharge port. The shutter is positioned so that it is closed. In the water discharge ports of the first and second embodiments of the present invention, the time required for opening and closing is only about 0.5 seconds, so it operates very quickly.

Hereinafter, a controller (not shown) for controlling the configurations of the first and second embodiments of the present invention will be described. The adsorbent container includes a temperature sensor for measuring the temperature of the adsorbent and the measured temperature is input to the controller. In response to the temperature change of the adsorbent, the control unit issues a control command to drive the electric motor to control the opening and closing of the water discharge port. In order to control the opening / closing time of the water outlet, a test was conducted to determine the relationship between the temperature of the adsorbent and the dehumidifying effect.

The test of FIG. 7 is a test for determining the temperature of the adsorbent at which water vaporization starts due to heating of the adsorbent when the regenerative heater is operated after maintaining the air state in the dehumidification cabinet at low humidity. Here, the adsorbent used synthetic zeolite. The regeneration heater is operated at 30 minutes (1800 seconds on the graph) and after about 35 minutes (2100 seconds on the graph), the humidity in the cabinet begins to rise at the adsorbent temperature of 80 ° C. In view of this, the water discharge port proper opening time after the heater operation is preferably about 75 ° C. after the heater operation, before the temperature of the adsorbent reaches 80 ° C. This is because the humidity is increased from 80 ° C to the inside, so it must be opened before 80 ° C. In other words, after the heater is operated during regeneration, it is possible to prevent the inflow of external air generated by the slow opening when opening, which is a problem of the conventional shape memory alloy, by quickly opening the water outlet using the motor or solenoid valve at the adsorbent temperature of 75 ° C.

On the other hand, if the water outlet is opened immediately after the heater is operated, the external air of relatively high humidity and the adsorbent come into contact with each other, and the adsorbent in the state before heating absorbs the moisture of the external air. This increases the moisture content of the adsorbent and increases the amount of water to be discharged, thereby reducing energy efficiency as well as dehumidification efficiency. That is, the adsorbent is preheated until just before the water starts to be discharged to open the discharge port so as to contact the outside air only when the water is evaporated. The optimum temperature of 75 ℃ is a case of synthetic zeolite and when applying a different type of adsorbent it is possible to extract the proper temperature through the same type of test.

The following describes control of the closing timing of the water outlet.

Since the operating time of the heater is 25 minutes, it is possible to know whether it is appropriate to close after some time after the heater is turned off by the following result. Figure 8 shows that after maintaining the air in the cabinet at low humidity, the result of the findings in Figure 7 after applying the opening time of the water outlet, the heater is stopped by applying the temperature of the adsorbent to about 75 ℃ (about 5 minutes after the heater operation) after the heater operation This is the test result when the discharge port is closed when the temperature of the agent reaches about 100 ° C. with natural cooling after regeneration. If the discharge port is closed when the adsorbent temperature is 100 ℃ after the heater is turned off (also in this case, it closes quickly through the small motor or solenoid valve so that external air is hardly introduced), and moisture inside the cabinet continues to evaporate moisture from the heated adsorbent. Resulted in an increase. When regenerating the adsorbent, the adsorption module is disconnected from the inside of the cabinet, but the cabinet itself is not completely sealed, so the humidity inside the cabinet is 30-8 ° C, 80% of the humid air flows into the inside little by little, and the humidity inside the cabinet is about 8-10% until the heater is turned off. Rose. After that, when the temperature of the adsorbent is 100 ℃, it is brought into contact with the inside of the cabinet again. At this time, the regeneration of the adsorbent is continued to increase the humidity inside the cabinet by about 8% or more, thereby increasing the internal humidity to 15-17%. That is, it is not preferable to close the discharge port when the temperature of the adsorbent is 100 ° C after the heater is turned off.

In FIG. 9, the same conditions as in FIG. 7 were applied, and when the heater was turned off and the water outlet was closed at the adsorbent temperature of 95 ° C., the same result as in the case of 100 ° C. was confirmed. This means that the adsorbent is continuously evaporating water from the adsorbent at both 100 ° C and 95 ° C. Therefore, it is not preferable to close the discharge port when the adsorbent temperature is 95 ° C after the heater is turned off.

10 to 13 were tested under the same conditions while changing the temperature of the adsorbent in units of 5 ° C. after the heater was turned off. As shown in the figure, after the heater is turned on for regeneration, the water outlet is opened when the temperature of the adsorbent is about 75 ° C, and the temperature of the adsorbent is 90 ~ to find the proper temperature of the adsorbent when the water outlet is closed after the regeneration heater is turned off. As a result of looking up to 80 ℃ all regeneration of the adsorbent was in the temperature range it can be seen that the humidity inside the dehumidification cabinet increases. However, as the temperature of the adsorbent decreases, it can be seen that the humidity rise in the cabinet decreases. This is because the regeneration of the adsorbent is almost complete, so there is almost no humidity hunting at about 80 ° C. When the opening point of the initial water outlet was determined, it was determined that the temperature of the appropriate adsorbent, which is a temperature before the temperature of 80 ° C., which started to influence the humidity inside, was about 75 ° C. In this case, the adsorbent after the regeneration was evaporated. As a result of the assumption that evaporation will not occur even if the adsorbent temperature is higher than 80 ℃, the water outlet closing test was applied according to various temperature ranges, but it is highly likely that the regeneration of the adsorbent will not be completed. In the case of the evaporation of the fine water occurs at 80 ℃, the temperature at which the water evaporation of the adsorbent occurs, resulting in the humidity hunting inside the cabinet as described above. Although it is a small amount at 80 ℃ even after regeneration when determining closing timing, it has an effect of raising the humidity inside the cabinet. As can be seen from FIG. 13, when the water outlet is closed when the adsorbent temperature is about 75 ℃, the humidity inside the cabinet does not occur. It can be seen.

13 shows the result of closing the water outlet when the adsorbent temperature is 75 ° C. after the heater is turned off. As a result, the humidity in the cabinet air is almost completely maintained at 8% relative humidity, which is about 3% increase from about 5% relative humidity before regeneration. This means that after the heater is turned off, the temperature of the adsorbent is cooled to 75 ° C and the evaporation of water is complete (dehumidification starts after regeneration). Therefore, it can be seen that it is appropriate to close the water outlet when the heater is stopped during regeneration of the adsorbent and the temperature of the adsorbent is about 75 ° C.

When the temperature of the adsorbent falls below 75 ℃, it may be the point of proper closing at all temperatures below that. However, considering the regeneration and dehumidification efficiency of the adsorbent, the adsorbent in the state where the regeneration is finished and the dehumidification starts is high. There is no need to increase the water content of unnecessary adsorbents by keeping in contact with air. This is because the dehumidifying adsorbent will absorb moisture from the outside air. Therefore, when the heater is turned off, the appropriate closing time of the discharge port that discharges the moisture contained in the adsorbent to the outside is about 75 ° C, which is 80 ° C or less after the heater is turned off.

As described above, the moisture discharge port is opened after the regenerative heating unit is operated, and the temperature of the adsorbent is opened below the open set temperature. The open set temperature is subjected to a test for the temperature of the adsorbent and the humidity inside the cabinet body, and then the humidity hunting occurs. It is preferable to set the maximum temperature of the adsorbent not used. Similarly, it is preferable to set the closed set temperature to the maximum temperature of the adsorbent that does not generate humidity hunting after testing the temperature of the adsorbent and the humidity inside the cabinet body. In the above-described embodiment, the open set temperature and the closed set temperature are the highest temperatures at which humidity hunting does not occur at about 75 ° C. or lower. The maximum temperature is a temperature obtained through measurement, and a detailed test of changing the temperature of the adsorbent to 1 ° C. Of course, if the value of the maximum temperature may change. Therefore, the meaning of the maximum temperature in the present invention means the optimum temperature obtained when measured experimentally, and does not mean the theoretical optimum temperature.

In the present invention, the synthetic zeolite is applied as an adsorbent, but when the other adsorbent is used, such as silica gel or alumina gel, since the regeneration temperature is different, the open set temperature and the closed set temperature are also changed.

FIG. 14 shows the result of operating the humidity hunting at 30 ° C. and 80% of the shape memory alloy system and comparing the control device of the water outlet according to the present invention with the same operation time.

As can be seen in Figure 14 it can be seen that there is almost no hunting of humidity when the regeneration of the adsorbent is improved compared to the case of the conventional shape memory alloy.

In the case of the existing shape memory alloy method, the temperature inside the cabinet also increases and decreases with the hunting of humidity during regeneration, whereas the temperature inside the cabinet is about 2 ° C without humidity hunting. It can be seen that it continues to rise, which is excellent in the seal of the prototype unlike the existing cabinet, but the material is considered to have a lower thermal conductivity than the conventional one. Therefore, even if the operation of the regeneration heater stops, the temperature does not drop near 30 ° C., which is the temperature of the external air, and the temperature is continuously maintained. This is a matter of material selection in cabinet manufacturing, so it is not caused by a problem in the system.

In addition, in Fig. 14 by using the conventional opening and closing method of regeneration of the adsorption module using the shape memory alloy and the opening and closing method using the solenoid valve as compared to when using the shape memory alloy when dehumidification characteristics from 30 ℃, 80% air condition It can be seen that the humidity decreased by more than 15%. The improvement also increased the humidity by about 3%, which is a short time, but it means that there will be some inflow of external air when the motor is running and the seal is incomplete. It is possible to assume that if the seal is completely sealed, the relative humidity inside the cabinet will hardly rise.

The present invention inevitably takes a long time to contact external air due to the slow operation when using the shape memory alloy, and prevents the inflow of external air due to the slow opening and closing during the heater operation or stoppage and the increase of humidity during the regeneration time. By opening and closing the water discharge port of the adsorption-type dehumidification cabinet quickly, and at the same time the opening and closing of the water discharge port from the end of the moisture evaporation of the adsorbent provides an effect that can almost eliminate the hunting of humidity.

In the above, the present invention has been illustrated and described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the spirit of the present invention. Various changes and modifications will be possible by those who have the same.

Claims (6)

Dehumidification cabinet body 100 is formed to maintain a low humidity inside; And, An adsorbent container which stores an adsorbent for adsorbing and dehumidifying the air inside the dehumidifying cabinet body and inhales the outside air during regeneration and discharges the humid air passing through the adsorbent together with an upper and lower dehumidifying port communicating with the dehumidifying cabinet body during dehumidification. 120); and A regenerative heating unit for heating and regenerating the adsorbent in the adsorbent vessel; and Upper and lower shutters 116a and 116b which are rotated by being supported at one central point so that the upper and lower absorption ports are closed when the water discharge port is opened and the moisture discharge ports are closed when the upper and lower suction ports are opened. And an electric drive unit configured to rotate the upper part, the shutter, and the lower part of the shutter; and a control part controlling the operation of the electric part. 2. The method of claim 1, wherein the adsorbent container includes a temperature sensor for measuring the temperature of the adsorbent, the temperature sensor is connected to the control unit, the transmission unit opens and closes the water discharge port according to the temperature change of the temperature sensor. Water discharge port control device of the adsorption cabinet, characterized in that for controlling. According to claim 1, wherein the transmission unit is a diagonal member 122 for hinge connecting the one side of the shutter and the lower side of the shutter in the diagonal direction; and the diagonal member and the electric motor 121 are driven by the rack and pinion to the electric motor Diagonal member moves in accordance with the rotation of the water discharge control device of the adsorption-type dehumidification cabinet, characterized in that for driving the shutters of the upper and lower. The method of claim 1, wherein the transmission unit comprises a coil spring 133 connecting the upper shutter one side and the lower shutter one side; and the solenoids (131, 132) for driving the upper and lower shutters, respectively; Water outlet control device of the adsorption-type dehumidification cabinet. The adsorbent according to any one of claims 1 to 4, wherein the water outlet is opened after the regenerative heating unit is operated and the temperature of the adsorbent is lower than the set opening temperature, and the closing of the water outlet is natural cooling after the regeneration is completed. The apparatus for controlling the water outlet of the adsorption type dehumidification cabinet, wherein the temperature is below the set closing temperature. 6. The apparatus of claim 5, wherein the open set temperature and the closed set temperature are set to a maximum temperature of the adsorbent in a region where humidity hunting inside the dehumidification cabinet body does not occur.

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