JPH0849896A - Dehumidifying and drying device - Google Patents

Abstract

PURPOSE:To enable an efficient recycling treatment of a rotary dehumidifying element to be carried out and a dehumidifying or drying treatment for wet indoor air with the rotary dehumidifying element through a convenient blowing system, to provided a small-sized entire device and to reduce the cost. CONSTITUTION:Indoor air A fed from a suction port 3 of a case main body 1 is passed through a cylindrical rotary dehumidifying element 20 by a forced circulating mechanism under an operation of a single blower so as to adsorb moisture, thereafter the air B is returned back to the room from the outlet 4, hot air is passed through the rotary dehumidifying element having adsorb moisture to desorb moisture. A recycling chamber 31 for passing hot air through the rotary dehumidifying element is arranged at a secondary side of a treatment chamber 7, and a discharging chamber 33 for discharging hot air out of the case main body is arranged at a primary side 7A of the treatment chamber and then the discharging pipe 34 connected to the discharging chamber 33.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a bathroom in a building, for example.
The present invention relates to a dehumidifying / drying device equipped with a rotary dehumidifying element used for dehumidifying and drying a highly humid atmosphere sealed room such as a clothes storage room or a basement.

[0002]

2. Description of the Related Art Generally, for example, on a wall surface or ceiling surface of a bathroom as a closed room at home, a ventilation port is opened through a makeup grill, and a ventilation fan is attached to the outside of a ventilation frame in a mounting frame provided in the ventilation port. By installing it, the room is ventilated.

Further, in the case of performing such dehumidification / drying of the room, a suction port and a blowout port are separately provided on the side wall surface or the ceiling surface, and the dehumidifying / drying device installed outside the room wet air in the room. This is done by sucking air through the suction port to dehumidify and dry it, and by blowing out the dehumidified dry air into the room from the air outlet, so that the bathroom can be used as a drying room for clothes such as laundry. ing.

Conventionally, in this type of dehumidifying / drying device,
Circulating air that blows dry air after the humid air in the room that has been sucked in through the suction port passes through the rotary dehumidifying element provided in the case body to cause the moisture to be adsorbed into the room through the air outlet. In addition to the forced circulation mechanism, the high temperature air is sent to the rotary dehumidifying element to which moisture is adsorbed, so that the rotary dehumidifying element desorbs water and regenerates the rotary dehumidifying element. Some have a configuration as described above.

[0005]

However, in the dehumidifying / drying device having the above-mentioned conventional structure, the forced circulation mechanism for the circulating air for sucking in the humid air in the room and blowing out the dried air after dehumidification, and the regenerating unit for regeneration. Since the air-blowing function that takes in and exhausts air is performed by separate air-blowing mechanisms, two dedicated air-blowing machines are required, the air-blowing system becomes complicated, and the overall size of the device only increases. Not only will it cost more.

Moreover, if the regenerating air is directly taken in from the outside, the temperature and humidity of the outdoor air change greatly, it is difficult to control the heating by the heater, and it is necessary to increase the capacity of the heater.
Further, since the outdoor air is often contaminated, the rotary dehumidifying element is heavily contaminated, which adversely affects the dehumidifying / drying performance and durability.

[0007]

SUMMARY OF THE INVENTION The object of the present invention is to dehumidify humid air in a room by a rotary dehumidifying element by a simple air blowing system.
It is an object of the present invention to provide a dehumidifying / drying device capable of efficiently performing a drying process and a regenerating process of a rotary type dehumidifying element, as well as reducing the size of the entire device and reducing the cost.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a processing chamber in a case main body in which a suction port and a blow-out port are exposed to the chamber is inserted into a primary chamber with a rotary dehumidifying element interposed therebetween. Side and secondary side, after passing the air in the chamber introduced into the primary side of the processing chamber from the suction port through the introduction passage to the rotary dehumidifying element, the secondary side of the processing chamber After that, a forced circulation mechanism with a single blower for returning to the chamber from the outlet is provided, and the rotary dehumidification element has a dehumidification treatment site, a regeneration treatment site, and a heat recovery treatment site in order along the rotation direction. Correspondingly, when the air introduced into the primary side of the processing chamber passes through the rotary dehumidification element, the dehumidification processing part causes the rotary dehumidification element to adsorb water to perform the regeneration. The treated area is the same as the dehumidified area where water was absorbed. High temperature air is passed through the rotary type dehumidifying element to cause desorption of water in the rotary type dehumidifying element, and the heat recovery processing part is the rotary type dehumidifying element whose temperature becomes high in the regeneration processing part. Is a dehumidifying / drying device that lowers the temperature of the rotary dehumidifying element by passing air through the air, and the rotary dehumidifier after heating the air that has passed through the heat recovery processing site on the secondary side of the processing chamber. A regeneration chamber for passing the regeneration dehumidifying element is disposed on the primary side of the processing chamber facing the regeneration dehumidifying element and the rotary dehumidifying element. An exhaust chamber for evacuating the high-temperature air that has passed through the processing site to the outside of the case body is arranged, and an exhaust pipe connected to this exhaust chamber is arranged so as to bypass the processing chamber, and the tip of this exhaust pipe is arranged. Front To face the outside of the case body is obtained by a configuration in which a.

Further, according to the present invention, in the above structure,
A large number of fins are provided on the outer circumference of the exhaust pipe.

[0010]

That is, according to the present invention, by adopting the above-mentioned configuration, the processing chamber in the case main body with the suction port and the air outlet facing the chamber is placed between the primary side and the secondary side with the rotary dehumidifying element interposed. After passing the air inside the chamber introduced into the primary side of the processing chamber from the suction port through the introduction passage to this rotary type dehumidifying element, it passes through the secondary side of the processing chamber to the chamber from the outlet through the outlet side. A dehumidification treatment part that has a forced circulation mechanism with a single blower that returns the dehumidification treatment part that adsorbs moisture from the air passing through the rotary dehumidification element in order along the rotation direction of the rotary dehumidification element. Air is passed through the regenerative treatment element that allows high-temperature air to pass through the rotary dehumidification element that has adsorbed moisture at the site to desorb the moisture, and the rotary dehumidification element that has become hot at this regeneration treatment site. Lower the temperature of the rotary dehumidifying element. The dehumidification / drying of the indoor humid air by the rotary dehumidification element and the regeneration processing of the rotary dehumidification element are continuously performed at the same time during the dehumidification / drying operation. Can be done.

In addition, since the forced circulation mechanism composed of a single blower simultaneously circulates the indoor air and simultaneously feeds and exhausts the regenerated air by taking in the air, the blower system is simplified and reduced in size and weight. Can be realized.

On the secondary side of the processing chamber, there is arranged a regeneration chamber for heating the air that has passed through the heat recovery treatment site and then passing it to the regeneration treatment site of the rotary dehumidifying element, while rotating with this regeneration chamber. An exhaust chamber for exhausting the high temperature air that has passed through the regeneration processing part of the rotary type dehumidifying element to the outside of the case body is arranged on the primary side of the processing chamber facing the type dehumidifying element in between, and this exhaust The exhaust pipe connected to the chamber is circumvented along the circumferential direction of the rotary dehumidifying element, and the tip of this exhaust pipe is exposed outside the case body. The heat exchange action of the exhaust pipe heated by the high-temperature air after passing through the site heats the air in the processing chamber, thereby raising the temperature of the dry air and improving the drying effect in the chamber.

Further, it is possible to reduce the capacity of the electric heater as a heating means for heating and raising the temperature of the air that is passed through the regeneration processing portion of the rotary dehumidifying element.

Furthermore, by providing a large number of fins on the outer circumference of the exhaust pipe, the heat exchange action of the air in the processing chamber is promoted.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 schematically shows the entire structure of a dehumidifying / drying apparatus according to the present invention. is there.

The front surface 1a of the case body 1 is provided with, for example, a mounting opening 2 having a vertical and horizontal outer frame size of 150 mm × 200 mm, and the mounting opening 2 serves as a suction opening 3. By forming the air outlet 4 and the air outlet 4 vertically adjacent to each other, it has a function of allowing air to be sucked in and blown out on the same plane.

That is, as shown in FIGS. 2 to 4, the case body 1 has a ventilation port frame 1 of a ventilation port opened on a wall surface 101 of a bathroom 100 as a dehumidifying / drying room of a building, for example.
02 has a size such that the mounting opening 2 can be mounted so as to face the indoor side from the outdoor side, and the case body 1 is fixed to the outer wall surface side of the bathroom 100 by an appropriate fixing means. It is supported by the attached mounting board 50, so that the inlet 3 and the outlet 4 of the case body 1 are connected to the bathroom 1.
No. 00 is opened on the same plane of the wall surface 101 of No. 00.

By the way, the mounting substrate 50 is formed of an iron plate 51 which is smaller than the area of the front face portion 1a of the case body 1, and a cylindrical portion 52 which can be fitted into the ventilation port frame 102 is provided in the vicinity of the central portion thereof. Has a protruding shape, and after the tubular portion 52 is fitted into the ventilation port frame 102, the iron plate 5
1 is fixed to the part of the building, such as a beam, where sufficient strength is maintained, with screws or the like.

Further, the hook 5 is attached to the mounting substrate 50.
3 are provided at a plurality of places, and the hook body 53 is hooked and supported by the front face portion 1a of the case body 1, and then the case body 1 is fixed to the mounting substrate 50 with screws or the like.

Reference numeral 103 in the drawing denotes a detachable makeup grill provided on the front portion of the ventilation frame 102 inside the bathroom.
The lower outlet 104 is provided with an airflow direction adjusting mechanism 105 including a plurality of airflow direction plates that can be pivotally adjusted in the vertical and horizontal directions.

The inside of the case body 1 is provided with an introduction passage 5 which communicates with the suction inlet 3 of the mounting opening 2, and a processing chamber 7 which communicates with the leeward side of the introduction passage 5 through the communication opening 6. A damper 8 whose opening and closing is controlled by, for example, a step motor is provided at a communication port 6 which is partitioned and formed to communicate with the processing chamber 7. The damper 8 is connected to the introduction passage 5 and the processing chamber 7 during ventilation operation. Between the intake passage 3 and the introduction passage 5 by performing a switching operation automatically or manually so as to close the communication port 6 between them.
Ventilation in which the moist air A introduced into the bathroom 100 is exhausted directly to the outside of the case body 1 from the ventilation port 9 opened on the side surface on the terminal side of the introduction passage 5 without passing through the processing chamber 7. Have a function.

On the other hand, during the dehumidifying / drying operation, the damper 8 can block the introduction passage 5 on the ventilation port 9 side.

The forced circulation mechanism is composed of a single centrifugal blower blower 10 such as a sirocco fan. The suction port 11 of the blower 10 is positioned corresponding to the suction port 3 and its discharge port 12 is provided. The introduction passage 5
The humid air A in the room from the suction port 3 is blown toward the processing chamber 7 by the pushing air blowing action.

Further, the processing chamber 7 has the introduction passage 5
Is divided into a primary side 7A and a secondary side 7B communicating with the air outlet 4, and the primary side 7A and the secondary side 7B are connected to each other.
The rotary dehumidifying element 20 is divided by the rotary dehumidifying element 20. The rotary dehumidifying element 20 is rotationally controlled by a rotation driving means which will be described later, and the rotation axis O thereof is the blower 10. By horizontally supporting the moist air A in the vertical direction with respect to the suction direction of the moist air A, the horizontal type is installed so as to horizontally rotate in the clockwise direction X.

As shown in FIG. 5, the rotation driving means has a plurality of projections 21 formed on the outer peripheral surface of the rotary dehumidifying element 20 at appropriate intervals in the circumferential direction, and these projections 21. At least one of the protrusions 21 is belted so that it is always meshed with the tooth portion 24 of the dry-driving belt 23 that is hung on the gear attached to the rotation shaft of the reduction motor 22 that is a drive motor. The driving element 20 is configured to be rotationally driven and controlled at a predetermined number of rotations, and the dry-driving belt 23 can maintain a tension state during tensioning by a tension spring 25.

The rotary type dehumidifying element 20 includes a dehumidification treatment portion 20A, a regeneration treatment portion 20B and a heat recovery treatment portion 20.
C and C correspond in sequence along the rotation direction X, and the processing chamber 7 is provided on the secondary side 7B of the processing chamber 7 of the rotary dehumidifying element 20 corresponding to the heat recovery processing site 20C. A part of the moist air A introduced to the primary side 7A is taken in, divided and made a U-turn to the regeneration treatment site 20B side, whereby the regenerated air C is counter-currently directed to the moist air A. A regeneration chamber 31 capable of supplying air is arranged, and an electric heater (PTC heater) 32 as a heating means is provided in the regeneration chamber 31.

Reference numeral 33 in the figure denotes the reproduction processing portion 20B.
The primary side 7 of the processing chamber 7 of the rotary dehumidifying element 20 corresponding to
A is an exhaust chamber in which the rotary dehumidifying element 20 is interposed and is arranged to face the regeneration chamber 31.
An exhaust pipe 34 is connected to the exhaust chamber 33, and the exhaust pipe 34 can exhaust the exhaust air D after the heating and regeneration of the rotary dehumidifying element 20 in the regeneration processing portion 20B to the outside of the case body 1. A ventilation resistance member such as a wire mesh (not shown) for preventing the intrusion of rainwater or the like and the influence of the external wind pressure is disposed inside the structure as required.

In this case, the moist air A during ventilation operation
Along with the exhaust of the exhaust air D and the exhaust air D during the dehumidifying / drying operation, the air corresponding to the exhaust amount is supplemented by the new outdoor air flowing from the door gallery or the gallery provided in the bathroom 100.

That is, the exhaust chamber 33 is shown in FIG.
As shown in FIG. 8, the rotary dehumidifying element 20 and the partition wall 13 are disposed so as to face the regeneration chamber 31, and the flange portion 33a of the exhaust chamber 33 and the flange of the regeneration chamber 31 are disposed. The three long bolts 35 inserted between the portion 31a and the nuts 36 are screwed through the springs 37 so that the nuts 36 are elastically connected to each other in the directions of attracting each other, and the urging force of the springs 37 is applied. Thus, the rotary dehumidifying element 20
Is elastically pressed against the partition wall 13, and the flange portion 33a of the exhaust chamber 33 and the flange portion 31a of the regeneration chamber 31 are kept in close contact with the processing surface of the rotary dehumidifying element 20. ing.

Reference numeral 38 in the drawing denotes a seal member interposed between the processing surface of the rotary dehumidifying element 20 and the flange portion 33a of the exhaust chamber 33 and the flange portion 31a of the regeneration chamber 31.

The exhaust pipe 34 connected to the exhaust chamber 33 is arranged on the primary side 7A in the processing chamber 7 so as to detour in the circumferential direction along the rotation direction X of the rotary dehumidifying element 20, for example. In addition, it is slanted downward from the inlet side to the outlet side, and a large number of fins 34a are provided on the outer periphery thereof.

Reference numeral 41 in the figure denotes an air filter provided in the suction port 3 of the mounting opening 2 of the case body 1.

According to the dehumidifying / drying apparatus of the present invention described above, as shown in FIG. 6, the inside of the bathroom 100 sucked into the case body 1 by the drive of the blower 10 from the suction port 3 during the dehumidifying / drying operation. The moist air A is guided to the introduction passage 5 and introduced into the primary side 7A of the processing chamber 7 through the communication port 6 and introduced into the primary side 7A of the processing chamber 7.
Is designed to be dehumidified / dried by causing the rotary dehumidification element 20 to adsorb moisture when passing through the rotary dehumidification element 20, and the dehumidification / dry air B is It is discharged to the secondary side 7B of the processing chamber 7 and blown out into the bathroom 100 from the blowout port 4, thereby forming a forced circulation mechanism of indoor air.

That is, in the dehumidification treatment part 20A, the humid air A introduced into the primary side 7A of the treatment chamber 7 is passed through the rotary dehumidification element 20 to adsorb moisture to perform dehumidification / drying treatment, It has a function of discharging the dehumidified dry air B to the secondary side 7B of the processing chamber 7, and the regeneration processing part 2
0B allows high-temperature air (regenerated air) C to pass through the rotary dehumidification element 20 that has adsorbed moisture in the dehumidification treatment site 20A, and causes the rotary dehumidification element 20 to desorb water. It has the function of playback processing.

Further, in the heat recovery processing part 20C, the moist air A is passed through the rotary type dehumidifying element 20 which has become high in temperature in the regeneration processing part 20B, so that the rotary type dehumidifying element 20 can be obtained.
In this case, a part of the moist air A introduced into the primary side 7A of the processing chamber 7 is taken and divided in the regeneration chamber 31, whereby the regeneration treatment is performed. A function of recovering the heat of the rotary dehumidifying element 20 after the regeneration treatment heated in the portion 20B, heating the regeneration air C by the electric heater 32, and supplying the heated air to the regeneration treatment portion 20B. Is.

The rotary type dehumidifying element 20 is, for example, a metal silicate gel obtained by combining silica gel with a plurality of metals such as cobalt, iron and manganese to cause polymerization reaction in a honeycomb laminate of ceramics and is compatible with water molecules. By finely adjusting the micropore shape so as to increase the hydrophilicity by fixing a large number of hydroxyl groups in the micropore, it has a cylindrical shape with improved water adsorption and desorption. The diameter of the cylinder is, for example, 20 cm,
The number of revolutions is set and controlled so as to be 1/2 revolution per minute.

Further, dehumidification processing parts 20A corresponding in order along the rotation direction X of the rotary type dehumidifying element 20,
The respective areas of the regeneration processing portion 20B and the heat recovery processing portion 20C have an angle ratio θ1: θ2: θ3 (θ1 ≧ θ2 ≧ θ.
3), the air flow rate ratio between the dehumidification treatment portion 20A and the regeneration treatment portion 20B is set to, for example, 5: 2: 1 and, for example, 200 (m ³ / h): 20 (m ³ / h). Although it is set, the diameter, the number of revolutions, and the angular ratio θ1 of the dehumidification treatment portion 20A, the regeneration treatment portion 20B, and the heat recovery treatment portion 20C of the rotary dehumidification element 20 are set.
It is needless to say that θ2: θ3, or the air volume (m ³ / h) ratio between the dehumidification treatment portion 20A and the regeneration treatment portion 20B can be changed according to the dehumidification / drying ability.

Further, the capacity of the electric heater 32 as a heating means of the regenerated air C in the heat recovery processing portion 20C is
For example, it is set to 450 W, whereby the dry air B blown into the room from the outlet 4 after dehumidification / drying has a temperature about 6 degrees higher than room temperature.

In the above embodiment, the rotary type dehumidifying element 20 is installed in a horizontal type so as to horizontally rotate in the clockwise direction X. However, for example, the rotary shaft of the rotary type dehumidifying element 20 is described. The O may be installed in a vertically installed type in which the O is axially supported in the left-right horizontal direction with respect to the suction direction of the indoor air A by the blower 10 and is vertically rotated in the clockwise direction X, and the selection is arbitrary.

[0040]

As is clear from the above description, according to the present invention, the processing chamber in the case body with the suction port and the air outlet facing the chamber has the primary side and the secondary side with the rotary dehumidifying element interposed therebetween. After passing the air inside the chamber introduced into the primary side of the processing chamber from the suction port through the introduction passage to this rotary type dehumidifying element, it passes through the secondary side of the processing chamber to the chamber from the outlet through the outlet side. The dehumidification treatment part is equipped with a forced circulation mechanism by a single blower for returning the dehumidification treatment part for adsorbing moisture from the air passing through the rotary dehumidification element in order along the rotation direction of the rotary dehumidification element. Air is passed through the regenerative treatment element that allows high-temperature air to pass through the rotary dehumidification element that has adsorbed moisture at the site to desorb the moisture, and the rotary dehumidification element that has become hot at this regeneration treatment site. Heat to lower the temperature of the rotary dehumidifier The dehumidification / drying operation is performed simultaneously with the dehumidification / drying of the humid air in the room by the rotary dehumidifying element, and the regeneration processing of the rotary dehumidifying element is continuously performed at the same time during the dehumidifying / drying operation. be able to.

Further, since the forced circulation mechanism consisting of a single blower is used to circulate and take in the indoor air at the same time, the regeneration air is fed and exhausted. The cost can be reduced.

On the secondary side of the processing chamber, there is arranged a regeneration chamber for heating the air that has passed through the heat recovery treatment site and then passing it to the regeneration treatment site of the rotary dehumidifying element, while rotating with this regeneration chamber. An exhaust chamber for exhausting the high temperature air that has passed through the regeneration processing part of the rotary type dehumidifying element to the outside of the case body is arranged on the primary side of the processing chamber facing the type dehumidifying element in between, and this exhaust The exhaust pipe connected to the chamber is arranged so as to bypass the processing chamber,
Since the tip of this exhaust pipe is exposed to the outside of the case body, the heat is removed by the heat exchange action of the exhaust pipe heated by the high temperature air after passing through the regenerative treatment part of the rotary dehumidifying element. The air in the room can be warmed, and the temperature of the dry air can be increased, so that the drying effect in the room can be improved.

Further, it is possible to reduce the capacity of the electric heater as a heating means for heating and raising the temperature of the air to be passed through the regeneration processing portion of the rotary dehumidifying element.

Further, in claim 2, by providing a large number of fins on the outer circumference of the exhaust pipe, the heat exchange action of the air in the processing chamber is promoted, and the dehumidification / drying of the indoor air can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of a dehumidifying / drying device according to the present invention.

FIG. 2 is a schematic explanatory view showing the overall structure of the building in the state of being attached to the bathroom.

FIG. 3 is a schematic cross-sectional view showing the state of attachment to the ventilation port frame in an enlarged manner.

FIG. 4 is a schematic vertical cross-sectional view showing an enlarged state of attachment to the ventilation port frame.

FIG. 5 is a schematic explanatory view of a rotary dehumidifying element.

FIG. 6 is an explanatory view showing in principle the dehumidification / dry circulation state by the rotary dehumidification element and the regeneration state by regenerated air of the rotary dehumidification element.

FIG. 7 is a schematic explanatory view showing an assembled state of the regeneration chamber and the exhaust chamber with respect to the rotary dehumidifying element.

FIG. 8 is an enlarged longitudinal cross-sectional view of a schematic main part showing the assembled state of the regeneration chamber and the exhaust chamber to the rotary dehumidifying element.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Case main body, 1a ... Front part, 3 ... Suction opening, 4 ... Air outlet, 7 ... Processing chamber, 7A ... Primary side, 7B ... Secondary side, 9 ... Ventilation port, 10 ... Forced circulation mechanism (blower), 20 ... Rotation type dehumidification element, 20A ... Dehumidification treatment part, 20B ... Regeneration treatment part, 20C ... Heat recovery Processing part, 31 ... Regeneration chamber, 32 ... Heating means (electric heater), 33 ... Exhaust chamber, 34 ... Exhaust pipe, 34a ... Fin, 100 ... Room (bathroom), A ... Wet air, B ... Dry air, C ... Regeneration air, D ... Exhaust air.

Claims (2)

[Claims] 1. A processing chamber in a case main body in which a suction port and a blowout port are faced to each other is divided into a primary side and a secondary side by sandwiching a rotary dehumidifying element, and the rotary dehumidifying element has the above-mentioned structure. Forced circulation by a single blower that allows the air in the chamber introduced from the suction port to the primary side of the processing chamber to pass through the introduction passage and then returns to the chamber from the outlet via the secondary side of the processing chamber. The rotary dehumidification element is provided with a mechanism, the dehumidification treatment portion, the regeneration treatment portion, and the heat recovery treatment portion are made to correspond in order along the rotation direction, and the dehumidification treatment portion is introduced to the primary side of the treatment chamber. When the generated air passes through the rotary dehumidification element, the rotary dehumidification element is caused to adsorb moisture, and the regeneration treatment part is the rotation where the moisture is adsorbed at the dehumidification treatment part. High temperature air is passed through the element for dehumidification Dehumidification / drying for allowing the element to perform desorption of water, and for the heat recovery processing part to pass air through the rotary type dehumidifying element which has become high in temperature in the regeneration processing part to lower the temperature of the rotary type dehumidifying element. In the apparatus, on the secondary side of the processing chamber, a regeneration chamber for heating the air that has passed through the heat recovery processing site and then passing it to the regeneration processing site of the rotary dehumidifying element is arranged. An exhaust chamber for exhausting the high temperature air, which has passed through the regeneration treatment part of the rotary type dehumidifying element, to the outside of the case main body on the primary side of the processing chamber which is opposed to the rotary type dehumidifying element with the rotary type dehumidifying element interposed therebetween. The dehumidifying / drying device is characterized in that the exhaust pipe connected to the exhaust chamber is arranged so as to bypass the processing chamber, and the tip end of the exhaust pipe is exposed to the outside of the case body. 2. A processing chamber in a case main body in which a suction port and a blowout port are exposed to the chamber is divided into a primary side and a secondary side with a rotary dehumidifying element sandwiched therebetween, and the rotary dehumidifying element is provided with Forced circulation by a single blower that allows the air in the chamber introduced from the suction port to the primary side of the processing chamber to pass through the introduction passage and then returns to the chamber from the outlet via the secondary side of the processing chamber. The rotary dehumidification element is provided with a mechanism, the dehumidification treatment portion, the regeneration treatment portion, and the heat recovery treatment portion are made to correspond in order along the rotation direction, and the dehumidification treatment portion is introduced to the primary side of the treatment chamber. When the generated air passes through the rotary dehumidification element, the rotary dehumidification element is caused to adsorb moisture, and the regeneration treatment part is the rotation where the moisture is adsorbed at the dehumidification treatment part. High temperature air is passed through the element for dehumidification Dehumidification / drying for allowing the element to perform desorption of water, and for the heat recovery processing part to pass air through the rotary type dehumidifying element which has become high in temperature in the regeneration processing part to lower the temperature of the rotary type dehumidifying element. In the apparatus, on the secondary side of the processing chamber, a regeneration chamber for heating the air that has passed through the heat recovery processing site and then passing it to the regeneration processing site of the rotary dehumidifying element is arranged. An exhaust chamber for exhausting the high temperature air, which has passed through the regeneration treatment part of the rotary type dehumidifying element, to the outside of the case main body on the primary side of the processing chamber which is opposed to the rotary type dehumidifying element with the rotary type dehumidifying element interposed therebetween. And an exhaust pipe connected to this exhaust chamber is arranged so as to bypass the processing chamber, and its tip end is exposed to the outside of the case body.
A dehumidifying / drying device, characterized in that a large number of fins are provided on the outer circumference of the exhaust pipe.