JPH10296039A - Moisture-absorbing dehumidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moisture-absorbing dehumidifier whose entire composition of an air flow path can be simplified with high dehumidifying performance and further, which is of a small size and easily installed at a low cost and enables the simultaneous adsorption/ regeneration of an adsorbent so that the continuous operation is realized. SOLUTION: The moisture-absorbing dehumidifier is equipped with an adsorption route A which dehumidifies an air loaded from an air intake 15 and discharges it indoors and a regeneration route 14 which regenerates adsorption parts 1, 2. The adsorption route 13 has a dust-proof filter 4, an adsorption/regeneration part 19 and a heat exchanger 3 arranged sequentially. The interior of the regeneration route 14 is an annularly continuous air circulation path and has a heater 9, the adsorption/regeneration part 19, the heat exchanger 3 for obtaining a condensate and a fan 5 for generating a circulating air flow arranged. The adsorption/regeneration part 19 comprises an adsorption/regeneration flow path A and an adsorption/regeneration flow path B which become confluent on both end parts. Further, a door (a7) which enables the selective ventilation of an air between the adsorption/ regeneration flow path A and the adsorption/regeneration flow path B, is installed at one terminal confluence of the adsorption/regeneration part 19. On the other hand, a door (b8) is installed on the other terminal confluence and is interlocked with the door (a7) to perform both adsorption and regeneration cycles simultaneously.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for dehumidifying air and a structure for regenerating an adsorbent provided in a moisture absorption type dehumidifier used for indoor dehumidification.

[0002]

2. Description of the Related Art A conventional moisture-absorbing dehumidifier dehumidifies air taken in from an air intake by a moisture-absorbing rotor and discharges dry air into a room from an air outlet, while passing heated air through the moisture-absorbing rotor. The adsorbed moisture is removed to regenerate the moisture absorbing rotor so that it can absorb moisture, and a continuous dehumidifying operation is performed while simultaneously performing dehumidification and regeneration.

[0003] More specifically, as shown in FIG. 3, a conventional hygroscopic dehumidifying apparatus uses a rotary hygroscopic rotor 20 having a hygroscopic agent to remove (dehumidify) water contained in room air.
Is provided, and the relatively low-temperature indoor air taken in from the air inlet 21 is first passed through the orthogonal heat exchanger 22,
The rotating moisture absorbing rotor 20 is allowed to pass through the moisture absorbing zone 20a (a portion other than the oblique line, approximately 3/4 region), where the moisture in the air is adsorbed by the moisture absorbing rotor 20 to dehumidify, and the dried air is removed. Air is blown into the room from the air outlet 24 by the blower fan 23. As a result, the indoor air is gradually dehumidified into dry air.

On the other hand, a circulating system for circulating air by a blower fan 25 is provided in order to regenerate the moisture-absorbing rotor 20 to a state capable of absorbing moisture. In this system, the air sent by the blower fan 25 is heated by the heater 26, and the high-temperature air is dehumidified and regenerated in the dehumidifying regeneration zone 20b of the rotor 20 (shaded area,
(Approximately 1/4 region).

[0005] In this case, in the moisture absorption rotor 20, a portion of the moisture absorption zone 20a that has absorbed moisture is rotated and moved to the dehumidification regeneration zone 20b.
Then, the humidity of the moisture absorbing rotor 20 is dissipated by the high-temperature air, and the moisture absorbing rotor 20 is regenerated to a moisture absorbing state. Therefore, the moisture absorbing rotor 20 is regenerated in a moisture absorbing state while continuously rotating at a predetermined speed, and can always exhibit the moisture absorbing function in the moisture absorbing zone 20a.

However, the humid high-temperature and high-humidity air discharged from the moisture-absorbing rotor 20 is guided to the orthogonal heat exchanger 22 and exchanges heat with relatively low-temperature air taken in from the air inlet 21 to reduce the humidity. It is condensed and stored in the drain pan 27 as drain water. The air from which the moisture has been removed is heated again by the heater 26, and the moisture absorbing rotor 2
0 is played.

[0007] In this specification, the term "moisture absorption" means that moisture in the air is adsorbed by the desiccant, and the term "dehumidification" means that moisture is removed from the air.

[0008]

As described above, the conventional moisture-absorbing dehumidifier has a system for supplying main dehumidified air,
A high-temperature air circulation system for regenerating the moisture absorbing rotor 20 is provided, and the dehumidification of air and the regeneration of the moisture absorbing rotor 20 are simultaneously and continuously performed. In the moisture absorbing rotor 20, a moisture absorbing zone 20a and a dehumidifying regeneration zone 20b are provided. It is necessary to operate by dividing into zones, and in spite of the fact that the air temperature in each zone is different, these zones have to be adjacent to each other, so it becomes extremely difficult to control the air temperature, This is a particular problem.

Further, since the high temperature of the dehumidifying regeneration zone 20b is transferred to the moisture absorbing zone 20a, the moisture absorbing performance in the moisture absorbing zone 20a may be reduced.

Furthermore, in order to simultaneously and continuously perform dehumidification of air and regeneration of the moisture absorbing rotor 20, it is necessary to provide a complicated air circulation system for regeneration of the moisture absorbing rotor in addition to the air flow path for dehumidifying. Therefore, the overall configuration of the air flow path is complicated.

The present invention has been made in view of the above problems, and has as its object to provide a moisture absorption type dehumidifier capable of simplifying the entire configuration of an air flow path and having high dehumidification performance.

[0012]

In order to achieve the above object, according to the first aspect of the present invention, air taken in from an air inlet is dehumidified by an adsorption / regeneration unit and discharged into a room from an air outlet. In a moisture absorption type dehumidifying apparatus having an adsorption path and a regeneration path for evaporating moisture through the adsorption / regeneration unit to evaporate moisture and regenerate the moisture into a moisture-absorbable state, the adsorption / regeneration units are installed in parallel and merge upstream and downstream. The adsorption / regeneration flow path A and the adsorption / regeneration flow path B are selected by a door a installed upstream of the junction. , The adsorption path having a heat exchanger that exchanges heat with the air in the regeneration path, a heater, a fan, and the upstream of the regeneration path including the heat exchanger that obtains condensed water. The door a The adsorbing / regenerating flow path A and the adsorbing / regenerating flow path B are respectively selected by the door b installed so as to be linked with each other, so that the air outlet and the downstream side of the regenerating path can communicate with each other. It is a moisture absorbing type dehumidifying device.

In this way, the size can be reduced as compared with the conventional dry dehumidifier, the duct piping work for exhausting the humid air is not required, and especially compared with the case where a rotary adsorbent is used. This eliminates the need for a complicated mechanism and control for the driving.

Furthermore, unlike the conventional wet type dehumidifier, no cycle parts such as a compressor are required, so that even when the system is operated at a low room temperature, the performance does not decrease due to the formation of water frost on the surface of the heat exchanger. A dehumidifier that does not generate noise at a low cost can be realized.

According to the present invention, it is possible to realize a moisture-absorbing dehumidifier which is compact, extremely easy to install, and inexpensive, and can be operated continuously because adsorption / regeneration of the adsorbent can be performed simultaneously.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing a configuration of a moisture absorption type dehumidifier according to an embodiment of the present invention.
This is a state in which the suction element 1 in the adsorption / regeneration channel A18 constituting the regeneration unit 17 is dehumidifying the intake air 14. FIG.
FIG. 2 is a schematic diagram showing a configuration of a moisture absorption type dehumidifying apparatus according to an embodiment of the present invention, in which an intake element is dehumidified by an adsorption element in a suction / regeneration channel constituting a suction / regeneration unit. It seems to be.

In FIG. 1, first, dust and dirt floating from the air intake 13 are removed by the dust filter 4. This prevents the heat exchanger 3 from deteriorating the heat exchange efficiency due to accumulation of dust due to long-term use,
The purpose is to prevent deterioration of the moisture absorption effect caused by dust adhering to the adsorption elements 1 and 2 and to prevent contamination of the entire adsorption path 11, and furthermore, molds grow on the sediment to cause an unpleasant odor. This has the effect of preventing things from happening.

Next, the intake air 14 passes through the heat exchanger 3 and exchanges heat with the circulating airflow heated by the heater 9 in the regeneration path 12 at that time. When the heat of the circulating airflow is removed, the water contained in the circulating airflow is condensed and changes its phase from a gas phase to a liquid phase to become condensed water. This condensed water condenses on the surface of the heat exchanger 3 in the regeneration path 12, and the condensed water discharged to the drain tank 10 is collected.

On the other hand, the intake air 14 passing through the heat exchanger 3
About, it travels in the adsorption path and reaches the adsorption / regeneration unit 17. Here, the adsorption / regeneration unit 17 is constituted by an adsorption / regeneration channel A18 and an adsorption / regeneration channel B19. At the end of the adsorption / regeneration unit 17, the adsorption / regeneration channel A18 and the adsorption / regeneration channel B19 are provided. Are joined together, and the other end is also joined in the same manner.

Here, a door a7 is provided at a junction end for guiding the intake air 14 to one of the adsorption / regeneration channel A18 and the adsorption / regeneration channel B19. The unit is provided with a door b8, and both doors are selectively opened and closed in response to the intended operation of the apparatus of the present invention.

The operation state of the apparatus of the present invention shown in FIG. 1 is a state in which the suction / regeneration flow path A18 functions as an adsorbent to dehumidify the intake air 14, and at the same time, the adsorption / regeneration flow path B19 is In this case, it is located in the regeneration path 12 and is in a state of being regenerated by dehumidifying the moisture adsorbed by the adsorption element 2. In such a state, the intake air 14 is guided by the door a7 positioned in a predetermined direction so as to be ventilated only to the adsorption / regeneration channel A18, and passes through the adsorption element 1 of the adsorption / regeneration channel A18 to dehumidify. And preferably dry air. Here, since the adsorbing element 1 and the adsorbing element 2 are composed of structural members containing a hygroscopic substance such as silica gel or zeolite and having a lattice structure, not only the air permeability is good but also the surface area with which the intake air 14 comes into contact. Since it can be set large, efficient moisture absorption is performed.

Next, the dried intake air 14 becomes exhaust air 16 to be blown into the room by a door b8 located at a predetermined position so as to be guided toward the air outlet 15. Here, the fan 5 shown in FIG. 1 generates the negative pressure in the suction path 11, thereby taking in the air in the room into the suction path 11, and at the same time, producing the effect of discharging the exhaust gas 16 into the room. .

On the other hand, the purpose of the regeneration path in FIG. 1 is to remove the moisture adsorbed by the adsorption element 2 and to regenerate the moisture in the air again so that the air in the room can be adsorbed. Are configured as insulated annular air circulation paths. First, the air in the regeneration path 12 is heated by the heater 9 to become high-temperature air which is preferably heated to about 100 ° C., and this high-temperature air is directed in a predetermined direction so as to be ventilated only to the adsorption / regeneration channel B19. It is guided by the located door b8 and passes through the adsorbent element 2 of the adsorption / regeneration channel B19. By heating the adsorption element 2 during this transmission,
The adsorbed moisture is vaporized and changed into water vapor and taken out, and is carried along with the air flow in the regeneration path 12.

The high-temperature and high-humidity air stream containing the water vapor is guided by the door a7 located at a predetermined position toward the heat exchanger 3, and the high-temperature and high-humidity air stream that has reached the heat exchanger 3 is described above. Is cooled while receiving condensed water by the heat exchange action of The dried circulating airflow is guided again by the heater 9 and is heated. By repeating the regeneration cycle, the adsorption element 2 is dried and regenerated.

FIG. 2 is a diagram showing an operation state in which the same effect as that obtained by the adsorption / regeneration operation of the moisture absorption type dehumidifier of the present invention described with reference to FIG. 1 is obtained. The difference from the operation of FIG. 1 is that, in FIG. 1, the adsorption element 1 inside the adsorption / regeneration path A performs a dehumidifying action, and at the same time, the adsorption / regeneration path B
FIG. 2 shows that the adsorbing element 2 inside
In, the adsorption element 1 inside the adsorption / regeneration path A performs regeneration, and at the same time, the adsorption element 2 inside the adsorption / regeneration path B performs a dehumidifying action.

By alternately repeating the operation state of FIG. 1 and the operation state of FIG.
While air is alternately reproduced, the moisture in the indoor air can be continuously dehumidified and comfortable air conditioning can be performed. Further, as compared with a conventional dehumidifier having a cooling cycle, since no compressor or the like is used, not only low noise but also low power consumption is required, and the device can be provided at low cost.
Furthermore, since a small and lightweight device can be realized, it can be carried around, and there are few restrictions on installation conditions and places, and the degree of freedom is high. Also, as compared with a conventional moisture absorbing device using a moisture absorbing rotor, the function of the moisture absorbing type dehumidifying device according to the present invention can be realized by a simple structure having a small number of sliding portions of the rotating mechanism.

The present invention is not limited to the above-described embodiments of the present invention, and various application examples can be devised by easily changing the shape and the arrangement. Therefore, the present invention is not limited to the above-described preferred embodiments, and various modifications can be easily made within the scope described in the claims.

[0028]

As described above, according to the present invention, downsizing can be realized as compared with the conventional dry type dehumidifier, the duct piping work for exhausting the humid air is not required, and especially, the rotary type dehumidifier is used. As compared with the case where a material is used, a complicated mechanism and control for the driving are not required.

Furthermore, unlike the conventional wet dehumidifier, no cycle parts such as a compressor are required, so that even when the system is operated at a low room temperature, the performance does not decrease due to the formation of water frost on the surface of the heat exchanger. A dehumidifier that does not generate noise at a low cost can be realized.

According to the present invention, it is possible to realize a moisture-absorbing dehumidifier which is compact, extremely easy to install, and inexpensive, and can be operated continuously because adsorption and regeneration of the adsorbent can be performed simultaneously.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a moisture absorption type dehumidifier in which the present invention is implemented.

FIG. 2 shows a configuration diagram of a moisture absorption type dehumidifier in which the present invention is implemented.

FIG. 3 shows a configuration diagram of a conventional rotary plate type dry dehumidifier.

[Explanation of symbols]

1 ... adsorption element, 2 ... adsorption element, 3 ... heat exchanger,
4: dustproof filter, 5: fan, 6
... Fan, 7 ... Door a, 8 ... Door b, 9 ... Heater, 10 ... Drain tank, 11 ... Adsorption path, 12 ... Regeneration path, 13 ... Air intake, 1
4 ... intake, 15 ... air outlet, 16 ... exhaust, 17 ...
Adsorption / regeneration unit, 18: Adsorption / regeneration flow path A, 19: Adsorption / regeneration flow path B, 20: Rotary moisture absorption rotor, 21: Air intake, 22: Orthogonal heat exchanger 23: Blowing fan, 24: Air Outlet 25, blower fan 26, heater 26, drain pan 27
20a: moisture absorption zone, 20b: dehumidification regeneration zone.

Claims (1)

[Claims] The air taken in from an air inlet (13) is dehumidified by an adsorbing / regenerating unit (17), and is then dehumidified by an air outlet (1).
5) The suction path (11) for discharging more indoors and the suction /
A regeneration path (12) for evaporating moisture through the regeneration section (17) to evaporate water and regenerate the moisture into a moisture-absorbable state; wherein the adsorption / regeneration section (17) is installed in parallel to the upstream and downstream sides. It consists of an adsorption / regeneration channel A (18) and an adsorption / regeneration channel B (19) that merge downstream, and the adsorption / regeneration channel A (7) is installed by a door a (7) installed upstream of the junction. 18)
And the adsorption / regeneration channel B (19) are selected respectively, and the adsorption path (11) having a heat exchanger (3) for exchanging heat with the air in the regeneration path (12), the heater (9),
A fan (6), which can communicate with an upstream side of the regeneration path (12) including the heat exchanger (3) for obtaining condensed water;
The adsorbing / regenerating flow path A (1) is provided on the downstream side of the merging section by a door b (8) installed in conjunction with the door a (7).
8) and the adsorption / regeneration channel B (19) are selected, respectively, and the air outlet (15) and the regeneration path (12) are selected.
A moisture-absorbing dehumidifier, characterized in that it can communicate with the downstream side of the device.