JPS63175618A - Dehumidifying apparatus - Google Patents

Abstract

PURPOSE:To increase the transmitting quantity of steam from the inside of a room to the outside thereof and to enhance dehumidifying effect due to a membrane like substance, by providing an air flow means for moving the air brought into contact with the steam permeable membrane like substance. CONSTITUTION:A membrane like material composed of a moisture permeable material such as cellophane and folded in an accordion shape is arranged to the opening 5 provided to a wall 4 partitioning the interior A of a room and the outside B thereof. Blowers 2 are arranged in close vicinity to both surfaces of the membrane like material on the side of the interior A of the room and on the side of the outside B thereof in opposed relationship and the air flow due to the forcible recirculation of air is generates on both surface sides of the membrane like material 1 to prevent the stagnation of air. The air having high steam partial pressure of the interior A of the room is always brought into contact with the surface of the membrane like material on the side of the interior A of the room and the air having low steam partial pressure of the outside B of the room is brought into contact with the membrane like material 1 on the side of the outside B of the room to make it possible to keep the steam partial pressure difference on both sides of the membrane like material 1 large and the transmitting quantity of steam of the membrane like material 1 can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a dehumidifying device using a water vapor permeable membrane material.

[Background technology]

Conventionally, many dehumidifiers using heat pumps have been provided to remove C9 indoors. However, since such a dehumidifier uses a compressor, even a home-sized dehumidifier requires several hundred watts of power, resulting in high running costs.

Therefore, it has been proposed to dehumidify and keep running costs low by using a membrane-like material that is permeable to water vapor, such as cellophane or shoji paper. If the water vapor partial pressure is higher than the water grave partial pressure outside the room, the flow of water vapor molecular diffusion can be selectively or non-selectively passed through.

However, if the indoor and outdoor areas are simply partitioned with this membrane-like material, the air on the indoor and outdoor sides that are in contact with the membrane hardly moves, so the permeation amount of water vapor per cost is small and sufficient dehumidification effect is achieved. The problem was that I couldn't do it.

[Purpose of the invention]

An object of the present invention is to provide a dehumidifying device that uses a membrane-like material to maintain low running costs and improves the water grave air permeability of the membrane-like material to improve dehumidification efficiency.

[Disclosure of the invention]

The dehumidification device of the present invention includes a membrane-like material having water vapor permeability and arranged to partition indoors and outdoors, and a membrane-like material on the indoor side and outdoor side of this film-like material (both provided on one side and in contact with the film-like material). and air flow means for moving air.

As described above, according to the present invention, the air flow means for moving the air in contact with the water vapor permeable membrane is provided on at least one of the indoor side and the outdoor side of the membrane. A water vapor partial pressure difference occurs on both sides of the object, and the amount of water vapor permeation from the indoor side to the outdoor side can be increased. As a result, it is possible to provide a dehumidifying device that uses a membrane material and has low running costs, and it is also possible to improve the dehumidification efficiency using the membrane material.

Embodiment An embodiment of the present invention will be explained based on FIGS. 1 and 2. That is, as shown in FIG. 1, this dehumidification device includes a membrane-like material 1 having water vapor permeability and arranged to partition an indoor room A and an outdoor B, and a membrane material 1 that is arranged to partition an indoor A side and an outdoor B side of this film material 1. It is equipped with forced circulation blowers 2 (air flow means) provided on each side for moving air in contact with the membrane material 1.

As shown in FIG. 2, the membrane-like material 1 is installed in an opening 5 provided in a wall 4 arranged to partition an indoor room A and an outdoor B, and is made of a moisture-permeable material such as cellophane or shoji paper. Ru. The membrane 1 is bent into an accordion shape so as to increase the dehumidification area and improve the dehumidification efficiency.

As shown in FIG. 1, the blowers 2 are disposed close to both sides of the membrane-like material 1 on the indoor A side and the outdoor B side, and facing each other with the film-like material 1 interposed therebetween. 2a and 2b are a power cord and a plug, respectively.

As a result of this configuration, the blower 2 causes air to flow on both sides of the film-like material l by the forced Wi ring, thereby preventing air from stagnation on both sides of the film-like material l.

Therefore, the surface of the membrane-like material 1 on the indoor A side is always in contact with the air with a high water stem partial pressure from indoor A, that is, humid air, while the surface on the outdoor B side is always in contact with the air with a high water stem partial pressure from outdoor B. Air, that is, dry air, comes into contact with each other, and it is possible to maintain a large water vapor partial pressure difference on both sides of the film-like material 1.

By creating a difference in water vapor partial pressure on both sides of the membrane 1 in this manner, the amount of water vapor permeation through the membrane 1 can be increased.

In general, in the movement of gas, if there are two sides of high partial pressure (i.e. high concentration) and low partial pressure (i.e. low concentration) in succession, gas molecules move from the high partial pressure side Move to the lower side. Furthermore, the larger the difference in partial pressure between them (that is, the larger the difference in concentration), the greater the amount of movement (therefore, due to the forced circulation of air by the blower 2, the indoor A side of the film-like material l is richer than the outdoor B side. Since the partial pressure of water vapor is maintained at a high state during the process, the water vapor entering the room flows to the outside B side through the membrane 1. As a result, the humid air in the room A side is efficiently absorbed by the membrane 1. (Dehumidified.

Furthermore, when using such a blower 2, it is possible to dehumidify with low power (several tens of watts or less) for household use, and the running cost is lower than that using a conventional compressor. It is possible to keep it low.

Another embodiment of the invention will be described based on FIGS. 3 and 4. Note that the same members as those in the previous embodiment are given the same reference numerals and their explanations will be omitted.

As shown in FIGS. 3 and 4, the dehumidifying device of this embodiment is provided with a heater 3 near the lower end of the membrane 1 as an air flow means.

As shown in FIG. 3, the heater 3 is bent into an accordion shape that is approximately the same shape as the membrane 1, and is placed on the outdoor B side near the lower end of the membrane 1.

Note that 3a and 3b are a power cord and a plug, respectively.

As shown in FIG. 4, an air flow means, that is, a heater 3 is installed at the lower end of the membrane 1, so that an air flow is generated on the surface of the membrane 1. Due to this air flow, both sides of the membrane 1 are always maintained at the high and low water transport partial pressure sides, as in the previous embodiment. By maintaining the water vapor partial pressure difference on both sides of the membrane-like material 1 in this manner, the water vapor permeability of the membrane-like material 1 can be increased.

Also, when using the heater 3, it is possible to achieve #humidification with low power as in the case where the blower 2 of the previous embodiment is used.

Note that the heater 3 may be installed only on the indoor A side of the membrane material 1 or on the indoor A side.
The same effect can be obtained even if it is installed both on the side and in the outdoor Bll'l.

Further, the air flow means is not limited to the blower 2 or the heater 3, and various other means (for example, air suction means, etc.) can be employed.

〔Effect of the invention〕

According to the dehumidifying device of the present invention, the air flow means for moving air in contact with the water vapor permeable membrane is provided on at least one of the indoor side and the outdoor side of the membrane. A water vapor partial pressure difference occurs on both sides of the object,
It is possible to increase the amount of water vapor permeation through the membrane from the indoor side to the outdoor side. As a result, it is possible to provide a dehumidifying device that uses a membrane material and has low running costs, and it is also possible to improve the dehumidification efficiency using the membrane material.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one embodiment of this invention, Fig. 2 is an explanatory diagram showing its principle, Fig. 3 is a perspective view of another embodiment of this invention, and Fig. 4 is an explanatory diagram showing its principle. It is. l...Film-like material, 2-Blower, 3-Heater, A...Indoor, B...Outdoor Figure 1 Figure 2 Figure 4 Procedure correction port (February 27, 1988) Patent Application No. 007229 No. 3, Relationship with the case of the person making the amendment Applicant 46 Attorney 5, voluntary amendment of the date of the amendment order (11 Specification, page 3, line 13, "Partial pressure difference occurs" (2) In the 17th line of page 3 of the specification, insert a new line after "can be improved." (3) Page 3, line 15 of the specification, "Outdoor B (IIJ
Correct J to read "indoor entrance side." (4) In the 9th line of page 7 of Book II, the phrase ``indoor entrance side'' is corrected to ``outdoor B side.'' (5) Figures 3 and 4 of the drawings are corrected as shown in the attached sheet (correction of symbols). HP Hayashi

Claims (3)

[Claims] (1) A membrane-like material that is permeable to water vapor and arranged to partition indoors and outdoors, and air that is provided on at least one of the indoor side and the outdoor side of this membrane-like object and moves the air in contact with the membrane-like material. A dehumidifying device comprising a flow means. (2) The dehumidification device according to claim (1), wherein the air flow means is a blower. (3) The dehumidification device according to claim (1), wherein the air flow means is a heater provided near the lower end of the membrane.