JPH10325564A - Fixed type dehumidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a compact construction with good installation characteristics by providing an exhaust path communicating with outdoor between a dehumidifier and a blower in a ventilation path and opening a damper in the exhaust path so as to introduce air flow blown by a blower from a heating means side to the dehumidifier. SOLUTION: A ventilation path 4 is formed in upper and lower layers by means of a partition plate and an inlet end is opened indoors and made to communicate with the upper ventilation path 4 through a filter and the upper ventilation path 4 is connected with a suction port of a blower 10 and is made to communicate with the lower ventilation path 4 through an outlet 12 of the blower 10. A dehumidifier 1 is installed crosswise in a part of the lower ventilation path 4 communicating with the outlet 12 of the blower 10, and a regeneration path 19 constituting a communication path from a part facing the outlet 12 of the blower 10 to a space between an equalizer plate 18 and an outlet end 13 is formed. A spring-driven open/close damper 21 opened by wind pressure exceeding force of a coil spring is installed in an inlet part of the regeneration path 19 to which the outlet 12 of the blower 10 faces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static dehumidifier using a static dehumidifier.

[0002]

2. Description of the Related Art As this type of apparatus, for example, a drying apparatus is known which makes a bathroom a dry atmosphere so that it can be used as a drying room for clothes and the like. Can be roughly classified. As described in, for example, JP-A-8-35696, JP-A-6-10782, and JP-A-7-180956, the former employs a dehumidifying rotor capable of reversible moisture absorption and dehumidification. It was used as a container. The latter is disclosed, for example, in Japanese Patent Laid-Open No. 5-1.
As disclosed in JP-A-64359, JP-A-63-287532 and JP-A-1-287532, a stationary type dehumidifier capable of reversible moisture absorption and desorption is used. is there.

[0003] Although a drying device using a dehumidifying rotor is capable of continuous dehumidifying treatment, the basic cross-sectional shape of the ventilation path is circular because it is a rotary type, and the degree of freedom with respect to the shape of the device tends to decrease. Therefore, it is difficult to mount the building using a ventilation opening of a standard size opened on a wall partitioning the inside and outside of the building, and complicated installation work is required. In addition, a dynamic seal is required at a portion where the airflow is sent to the rotating dehumidifying rotor, and the configuration of the rotating mechanism is considerably complicated, resulting in an expensive device. On the other hand, since the stationary type dehumidifier has a configuration in which the dehumidifier does not move, a dynamic seal or a rotating mechanism portion is not required, so that a simple configuration can be adopted, and manufacturing is relatively easy.

[0004] The dehumidifier itself may be formed into a cylindrical shape by winding and forming a corrugated material or a honeycomb material to which a hygroscopic agent such as silica gel is adhered, or may be formed into a hexahedral block by laminating. doing. By passing the processing air through the passage of the dehumidifier having such a configuration, dehumidified and dry air is obtained. Also, if heated air is passed through the passage of the dehumidifier that has absorbed moisture, the dehumidifier is dehumidified, regenerated, and exhibits the dehumidification function again.

[0005] The dehumidification technique using a stationary dehumidifier disclosed in Japanese Patent Application Laid-Open No. 63-287532 is a dehumidification process in which indoor air is passed through the dehumidifier and then returned to the room again. The regenerating process of heating, passing through a dehumidifier, and exhausting to the outside of the room is alternately repeated. As shown in FIG. 11, a drying apparatus to which this technology is applied includes a ventilation path 102 in which a stationary dehumidifier 101 circulates indoor air.
It is provided so as to be able to ventilate inside, and is configured to alternately repeat dehumidification / regeneration (ventilation) by switching a damper 103 provided in the ventilation path 102. The airflow in the same direction flows into the dehumidifier 101 both in the dehumidification process and in the regeneration process, and a heater 104 for heating the airflow in the regeneration process is provided upstream of the dehumidifier 101.

[0006]

A drying apparatus or a dehumidifying apparatus using the conventional stationary dehumidifier 101 as described above does not sufficiently draw out the dehumidifying function of the dehumidifier 101 itself.
I was dissatisfied with the performance. That is, the moisture absorbing ability of this type of dehumidifier 101 is affected by the temperature, and the lower the temperature, the higher the moisture absorbing ability, but the direction of the airflow flowing through the dehumidifier 101 in the dehumidifying process and the regeneration process is the same. For,
When the process shifts from the regeneration process to the dehumidification process, an airflow always flows from the side that has become hot in the regeneration process, and the characteristics of the dehumidifier 101 cannot be fully utilized.

As described in the section of the prior art, the drying apparatus is often configured such that ventilation can be performed by utilizing a configuration for performing a regeneration process. Also, in the ventilation operation, since the indoor air is discharged through the dehumidifier 101, only a small air volume can be ventilated, and it is not possible to cope with a case where a large air volume is required. Furthermore, since the dehumidifier 101 having a considerably large volume is required to perform the dehumidification function, the size of the device is also increased, and a ventilation opening having a standard size (150 mm × 200 mm) opened in a wall partitioning the interior and exterior of the building is required. Could not be installed using.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a compact dehumidifier with good mountability using a stationary dehumidifier. It is another object of the present invention to provide a static dehumidifier capable of better extracting the dehumidifying function of a static dehumidifier, and to improve the function of the device.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the invention of claim 1 has a plurality of linear passages through which processing air passes, and has a reversible moisture absorption / release function. The dehumidifier of the type, the outlet end and the inlet end are interposed in the middle of the ventilation passage that opens into the room on one side of the box-shaped main body casing, and on the inlet end side of the dehumidifier of this ventilation passage, A ventilation device that forms an air flow from the inlet end to the outlet end through each passage of the dehumidifier is incorporated in the ventilation passage, and heating is performed on the outlet end side of the dehumidifier in the ventilation passage to raise the temperature of the air passing through the section. Means are incorporated, and between the dehumidifier and the blower of this ventilation path can be opened and closed by a damper, and an exhaust passage communicating with the outside on the other side of the main body casing is connected, and the exhaust path is closed by closing the damper. And is opened by the air blower Employing means for providing a playback path to be introduced into the dehumidifier flow from the heating means side.

According to a second aspect of the present invention, in order to achieve the above object, the main body casing in the first aspect can be inserted into a square opening frame of a ventilation opening formed in a wall partitioning the interior and exterior of a building. Employ means for size.

According to a third aspect of the present invention, in order to achieve the above object, the dehumidifier in the means according to any one of the first and second aspects is divided into a plurality of units and arranged in a folding screen shape. A means to cross the ventilation path is adopted.

According to a fourth aspect of the present invention, in order to achieve the above object, the dehumidifier in the means according to any one of the first and second aspects is divided into two parts, and they are shaped like a folding screen. Means to cross the ventilation path.

According to a fifth aspect of the present invention, the exhaust passage is directly connected to the blower side of the blower by the damper for opening and closing the exhaust passage in the means according to any one of the first to fourth aspects. Employ means to enable communication.

According to a sixth aspect of the present invention, in order to achieve the above object, a ventilation path of a portion provided with a heating means and a dehumidifier in the means according to any one of the first to fifth aspects has a heat insulating structure. Adopt means.

According to a seventh aspect of the present invention, there is provided a spring-loaded damper which opens and closes the regeneration passage in the means according to any one of the first to sixth aspects by wind pressure. Employ means to do so.

In order to achieve the above object, the invention according to claim 8 provides a circulating blower for circulating indoor air on the indoor side of the main body casing in the means according to any one of claims 1 to 7. Adopt means.

According to a ninth aspect of the present invention, a circulating blower for circulating indoor air is provided on the indoor side of the main casing in the means according to any one of the first to seventh aspects. Means to be provided as possible are adopted.

According to a tenth aspect of the present invention, there is provided a dehumidifier according to any one of the first to eighth aspects, wherein in the dehumidifying operation, the regeneration passage is always opened at the start of the operation. Means to start from the reproduction by the user.

[0019]

Embodiments of the present invention will now be described with reference to the drawings. Embodiment 1 FIG. The static dehumidifier of this embodiment shown in FIGS. 1 to 5 has a reversible moisture absorption / release function as shown in FIG.
A dehumidifier 1 having a structure as shown in FIG. 1 is used to dehumidify a room as shown in FIG. As shown in FIG. 1, a dehumidifier 1 applied to this static dehumidifier uses a corrugated structural material or a honeycomb structural material in which a hygroscopic agent such as silica gel is bonded to inorganic fibers such as ceramics using a polymerization reaction. They are stacked and configured in a rectangular parallelepiped shape in which a large number of linear passages 2 through which the processing air passes are distributed throughout. Each passage 2 is parallel and all of its open ends are open to two opposite surfaces of the dehumidifier 1.

The dehumidifier 1 having the above-described structure is incorporated in a ventilation path 4 formed in a box-shaped main casing 3. The main body casing 3 has a standard size (150 mm ×
(200 mm). The ventilation passage 4 is formed in a vertically upper and lower two-layered shape by a partition plate 7 that vertically divides the inside of the main body casing 3, and its inlet end 8 opens into the room at an upper portion of one side of the main body casing 3 on the indoor side. 9 communicates with the upper air passage 4. The upper air passage 4 is connected to the suction port 11 of the blower 10 incorporated on the other side of the main body casing 3 on the outside side, and is connected to the lower air passage 4 via the outlet 12 of the blower 10. . The outlet end 13 of the ventilation path 4 faces the lower ventilation path 4, and opens into the room on one side of the main body casing 3 which is the room side.

The lower layer ventilation path 4 has a partition plate 1
A heat insulating material 16 is lined on the inner surface of the blower room 15 by the air blower 4. Blower 10 in lower air passage 4
The dehumidifier 1 is connected to the passage 2 of the
In order to allow the airflow from the blower 10 to pass through, it is incorporated in a transverse manner. Note that airtightness is maintained between the dehumidifier 1 and the wall surface of the ventilation path 4. The ventilation path 4 between the dehumidifier 1 and the outlet end 13 incorporates a heater 17 as a heating means for heating an airflow passing through the section. Further, in the ventilation path 4 between the heater 17 and the outlet end 13, a uniform plate 18 for uniformizing an air flow having many small holes is interposed. A regeneration passage 19 is formed beside the lower ventilation passage 4 and communicates between the uniform plate 18 and the outlet end 13 from a portion of the blower 10 facing the air outlet 12. As shown in FIG. 5, the inlet of the regeneration passage 19 facing the outlet 12 of the blower 10 is normally closed by the bias of the coil spring 20, and is opened when a wind pressure exceeding the bias of the coil spring 20 acts. A spring-biased opening / closing damper 21 is mounted.

An exhaust passage, which can be opened and closed by a switching damper 22 between the dehumidifier 1 in the ventilation passage 4 and the outlet 12 of the blower 10, and communicates from the blower room 15 of the main body casing 3 to the outside on the outside side. 23 are formed. The switching damper 22 closes the ventilation passage 4 to the dehumidifier 1 side and opens the exhaust passage 23 in FIG. 2, and opens the ventilation passage 4 to the dehumidifier 1 side and closes the exhaust passage 23. The position B in FIG. 2 and the position C in FIG. 2 in which the ventilation passage 4 to the dehumidifier 1 side is opened and the exhaust passage 23 is also opened can be switched.

As shown in FIG. 4, the stationary type dehumidifier is inserted from the indoor side into a mouth frame of a ventilation opening 6 of a standard size opened in a wall body 5 for partitioning the interior and exterior of a room such as a bathroom 24, for example.
It can be easily installed in the same way as a normal ventilation fan. On the bathroom 24 side, the entrance end 8 and the exit end 13 of the ventilation path 4
However, the blower rooms 15 face the outside, respectively, so that the operation noise toward the bathroom 24 is small, and the protruding portions inside and outside the room are small, and the appearance of the building is hardly impaired. Then, the switching damper 22 is switched to alternately repeat the dehumidification process and the regeneration process, so that the dehumidification function can be achieved. In the dehumidification process, the switching damper 22 is set to B
In this position, the air in the bathroom 24 is sucked by the blower 10, and the dehumidifier 1 is moved from the upper ventilation path 4 to the lower ventilation path 4.
In the bathroom 24 to dehumidify it and return it to the interior of the bathroom 24. In the regeneration process, the air in the room sucked by the blower 10 is heated to about 140 ° C. by the heater 17 through the regeneration passage 19 with the switching damper 22 at the position A, and then passed through the dehumidifier 1 from the opposite side to the outside. This is the process of discharging. Heater 1
Since the seven ventilation passages 4 have a heat insulating structure, heat radiation to the surroundings is small and heating efficiency is good.

In the dehumidifying operation in which the dehumidifying step and the regenerating step are alternately repeated, control is performed such that the operation of the dehumidifier 1 is always started by opening the regenerating passage 19 at the start of the operation. By doing so, the dehumidifying operation is not started from the state of the dehumidifier 1 in which the moisture is absorbed in the stopped state and the dehumidifying ability is reduced, and the dehumidifying function is stabilized. Further, in the stopped state, the odor of the dehumidifier 1, which absorbs odorous substances as well as moisture, can be released to the outside of the room in advance by exhaustion in the regeneration process, and the usability is improved.

One of the features of the stationary dehumidifier of this embodiment is that the direction of passage of room air to the dehumidifier 1 in the dehumidification process and the regeneration process is reversed. The moisture absorption capacity of this type of dehumidifier 1 is affected by temperature, and the lower the temperature, the higher the moisture absorption capacity. However, if the direction of the airflow flowing through the dehumidifier 1 in the dehumidification process and the regeneration process is the same, When the process shifts from the regeneration process to the dehumidification process, the airflow in the dehumidification process always flows from the side heated to a high temperature in the regeneration process, and the above-described characteristics of the dehumidifier cannot be fully utilized. On the other hand, if the direction of passage of the indoor air to the dehumidifier 1 in the dehumidifying step and the regeneration step is opposite, that is, counterflow, the temperature of the inflow side of the dehumidifier 1 in the dehumidification step after the regeneration step Temperature can be prevented, the dehumidifying performance of the dehumidifier 1 can be brought out, and the energy efficiency can be improved.

The time of the dehumidification process is set slightly shorter than the time of the regeneration process, and the reversal of the direction of the air flow is performed by switching the air path by switching the switching damper 22. When the switching damper 22 is switched to the position A, the wind pressure generated by the blower 10 exceeds the urging force of the coil spring 20 of the opening / closing damper 21 that has closed the regeneration passage 19, and the opening / closing damper 21 is opened and the regeneration passage 19 is opened. Be released. Reproduction passage 19
Some of the air in the bathroom 24 that has flowed into the ventilation path 4 from the outlet is blown into the bathroom 24 from the outlet end 13 of the ventilation path 4, and the other part passes through the uniform plate 18 and is heated by the heater 17. ,
After passing through the dehumidifier 1, the air is exhausted outside through the exhaust passage 23. The air in a portion of the bathroom 24 that has passed through the regeneration passage 19 returns from the outlet end 13 into the bathroom 24 as described above, and forms a circulating flow in the bathroom 24 to a lesser extent. Therefore, the inside of the bathroom 24 is dried to some extent even during the regeneration process.

When the objects to be dried 25 such as clothes are hung in the bathroom 24 to be dried, the drying time is shorter when a drying atmosphere having a higher degree of drying is used. However, promptly removing moisture removed from the object 25 by removing it from the object 25 is also an important factor for reducing the drying time. In this static dehumidifier, a part of the air circulates in the regeneration process as described above, and the moisture that has been peeled off is exhausted to the outside by the exhaust gas, so that the moisture is quickly separated from the object 25 to be dried. The drying time is shortened.

According to the stationary dehumidifier of this embodiment, not only can the functionality of the dehumidifier 1 be enhanced, but also the heater 17 used in the regeneration process can be used because the lower ventilation path 4 has a heat insulating structure. Also, heating can be performed. That is,
If an airflow in the same direction as that of the dehumidification process is formed in the air passage 4 and the heater 17 is operated, heating by blowing warm air into the room is realized. At this time, the heater 17 used in the regeneration process is located on the downstream side of the dehumidifier 1, so that the heated airflow does not pass through the dehumidifier 1, so the heat is not deprived by the dehumidifier 1 and its life is reduced. Is not shortened, and the process can be smoothly shifted to the dehumidification process for the reasons described above.

As described above, in the regeneration process, indoor air is exhausted because the indoor air is exhausted. However, only a small air volume can be expected to pass through the dehumidifier 1, and ventilation at a large air volume can be expected. Cannot be handled if necessary. In this stationary dehumidifier, the switching damper 22 is switched to the C position, and the air outlet 12 of the blower 10 faces the exhaust passage 23, so that the indoor air blown from the blower 10 hardly passes through the dehumidifier 1. The air can be exhausted from the exhaust passage 23 to the outside of the room. That is, ventilation of a large air volume can be easily performed if necessary.

Embodiment 2 FIG. FIGS. 6, 7, and 8 show a static dehumidifier of this embodiment. This static dehumidifier promotes downsizing of the static dehumidifier shown in Embodiment 1 by the configuration of the dehumidifier 1.
Except for the configuration relating to the dehumidifier 1, the configuration is the same as that of the first embodiment. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and the description thereof will be omitted.

The passage 2 as shown in FIG.
The hexahedral dehumidifier 1 whose lateral dimension perpendicular to the vertical direction is longer than the vertical dimension parallel to the passage 2 needs dimensions of an assembling part corresponding to its longitudinal, lateral and height dimensions. The dehumidifier 1 of this embodiment is configured by dividing the dehumidifier 1 of FIG. 1 into two in the vertical direction or the height direction, and arranging them in a shape like a folding screen such that the legs are opened to the blower 10 side. The air passage 4 is crossed. By employing this configuration, the length of the ventilation path 4 becomes slightly longer, but the dimension in the width direction or the height direction can be reduced. If the dehumidifier 1 has a moisture absorption / desorption function that is divided into two parts in the vertical direction, the area of the passage 2 facing the ventilation path 4 is increased, so that the pressure is reduced because the length of the passage 2 is shortened. Become. The method of dividing the dehumidifier 1 in this manner is effective even if the dehumidifier 1 is divided into a plurality of parts as shown in FIG. is there. Other functions and advantages are the same as those of the first embodiment.

Embodiment 3 FIG. 9 and 10 show a static dehumidifier according to this embodiment. This static dehumidifier is designed to improve the drying function of the stationary dehumidifier shown in the first and second embodiments for the object 25 to be dried such as clothing. Same as 2. Therefore, the same portions as those in the first and second embodiments are denoted by the same reference numerals as those in the first and second embodiments, and description thereof will be omitted.

The stationary dehumidifier shown in FIG. 9 is provided with a circulation blower 26 for sucking air inside and blowing it into the room on the indoor side of the main casing 3. Circulating blower 26
By the operation described above, for example, a circulating flow is formed in the bathroom 24, and the wind speed against the clothes and the like can be increased, so that the drying speed can be increased. Therefore, it is effective when it is desired to dry quickly, and since the operation time of the heater 17 can be shortened, the energy saving effect is also increased. Although the ventilation opening 6 is small and increasing the air volume of the blower 10 is limited by the capacity of the blower 10, the dehumidifying capacity of the dehumidifier 1 is less dependent on the air volume and the front wind speed of the dehumidifier 1 (1 m / Since there is an optimum wind speed at the position s), the amount of air flowing through the dehumidifier 1 may be reduced, and instead, the evaporation of moisture from clothes and the like can be promoted by the amount of air of the circulation blower 26. Regarding the circulation blower 26, as shown in FIG.
7 and detachably attached with screws etc., long lead wire 2
By having 8, the circulation blower 26 can be arranged at any place on the inner wall surface such as the bathroom 24,
The drying effect can be improved by uniformly blowing the wind on clothes and the like.

[0034]

As described above, according to the first aspect of the present invention, a compact dehumidifier having good compactness and good mountability using a stationary dehumidifier that does not require a dynamic seal or a rotating mechanism can be obtained. The dehumidification function of the vessel can be better extracted.

According to the second aspect of the present invention, in addition to the effect according to the first aspect, the mountability thereof is further improved.

According to the third aspect of the present invention, the pressure loss related to the dehumidifier can be reduced together with the effect according to the first or second aspect.

According to the fourth aspect of the present invention, the pressure loss relating to the dehumidifier can be reduced together with the effect according to the first or second aspect, and downsizing can be promoted.

According to the fifth aspect of the present invention, ventilation with a large air volume can be performed together with the effects according to any one of the first to fourth aspects.

According to the sixth aspect of the present invention, the heat radiation loss can be reduced together with the effect according to any one of the first to fifth aspects, and the heating by the heating means can be performed.

According to the seventh aspect of the present invention, the opening and closing of the reproduction passage can be realized with a simple configuration, in addition to the effect according to any one of the first to sixth aspects.

According to the eighth aspect of the present invention, the drying time is shortened and the drying function is improved together with the effects according to any one of the first to seventh aspects.

According to the ninth aspect of the present invention, the drying time is shortened together with the effect according to any one of the first to seventh aspects, and the drying function is further improved.

According to the tenth aspect, in addition to the effects according to any one of the first to eighth aspects, the dehumidifying function can be stabilized and the usability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a static dehumidifier used in a static dehumidifier according to a first embodiment.

FIG. 2 is a cross-sectional configuration diagram of the static dehumidifier of the first embodiment.

FIG. 3 is a vertical cross-sectional configuration diagram of the static dehumidifier according to the first embodiment.

FIG. 4 is an explanatory diagram showing the stationary dehumidifier of the first embodiment in an installed state.

FIG. 5 is an enlarged cross-sectional view illustrating a configuration of an opening / closing damper of the static dehumidifier according to the first embodiment.

FIG. 6 is a cross-sectional configuration diagram of a static dehumidifier according to a second embodiment.

FIG. 7 is a vertical cross-sectional configuration diagram of a static dehumidifier according to a second embodiment.

FIG. 8 is an explanatory diagram showing another configuration of the dehumidifier of the static dehumidifier of the second embodiment.

FIG. 9 is a vertical cross-sectional configuration diagram of a stationary dehumidifier according to a third embodiment.

FIG. 10 is an explanatory diagram illustrating a stationary dehumidifier according to Embodiment 3 in an installed state.

FIG. 11 is a cross-sectional view illustrating a configuration of a conventional drying device.

[Explanation of symbols]

1 dehumidifier, 2 passage, 3 body casing, 4
Ventilation passage, 6 ventilation opening, 8 entrance end, 10
Blower, 13 outlet end, 16 heat insulating material, 17 heater, 19 passage for regeneration, 20 coil spring, 2
1 opening / closing damper, 22 switching damper, 23 exhaust passage, 26 circulation blower.

Claims (10)

[Claims] 1. A stationary dehumidifier having a large number of linear passages through which process air passes and having a reversible moisture absorption / desorption function, and a main body casing having a box-shaped outlet end and an inlet end. On one side of the air passage, the air passage is opened in the middle of a ventilation path that opens into the room, and on the inlet end side of the ventilation path from the dehumidifier, the ventilation end passes through the passage of the dehumidifier from the entrance end to the exit end. A heating means for raising the temperature of the air passing through the ventilation path is provided at the outlet end side of the dehumidifier in the ventilation path, and the dehumidifier and the ventilation means for the ventilation path are incorporated in the ventilation path. The opening and closing can be opened and closed by a damper, and an exhaust passage communicating with the outside on the other side of the main body casing is connected.The exhaust passage is closed by closing the damper, opened by opening and opened by the blower. Make sure that the airflow is A regeneration passage for introducing the dehumidifier into the dehumidifier. 2. The static dehumidifier according to claim 1, wherein the main body casing has a size that can be inserted into a square mouth frame of a ventilation opening formed in a wall partitioning the interior and exterior of a building. Dehumidifier. 3. The static dehumidifier according to claim 1, wherein the dehumidifier is divided into a plurality of parts, and the plurality of dehumidifiers are arranged in a folding screen shape to cross the ventilation path. Stationary dehumidifier. 4. The static dehumidifier according to claim 1, wherein the dehumidifier is divided into two parts, and they are arranged in a folding screen shape. A static dehumidifier that traverses. 5. The static dehumidifier according to claim 1, wherein the exhaust passage can be directly connected to an outlet side of the blower by a damper for opening and closing the exhaust passage. Static dehumidifier. 6. The static dehumidifier according to claim 1, wherein a ventilation path at a portion where the heating means and the dehumidifier are provided has an adiabatic structure. 7. A stationary dehumidifier according to claim 1, wherein the regeneration passage is opened and closed by a spring-biased damper which is opened and closed by wind pressure. Dehumidifier. 8. The static dehumidifier according to claim 1, further comprising a circulating blower for circulating indoor air on the indoor side of the main casing. 9. The static dehumidifier according to claim 1, wherein a circulating blower for circulating indoor air is detachably provided on the indoor side of the main body casing. Dehumidifier. 10. The static dehumidifier according to claim 1, wherein in the dehumidifying operation, the operation of the dehumidifier is started by opening the regeneration passage at the start of the operation. Stationary dehumidifier.