JPH02197739A - Humidity controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention absorbs moisture in a room when the humidity is high, condenses this moisture and dehumidifies it by passing it through a hygroscopic body, and removes moisture from the hygroscopic body when it is dry. The present invention relates to a humidity control device that controls humidity indoors.

[Solved by the prior art and the present invention] Problems to try]

Conventional dehumidification devices on the market are large-scale devices that circulate air through a filter made of corrugated asbestos sheets impregnated with hygroscopic filler to absorb moisture, and then expose the filter to hot air to recover high-temperature air. (Japanese Patent Application Laid-Open No. 55159827).

Although the above-mentioned dehumidifying device has excellent dehumidifying ability, it is not suitable for use in closets, storage rooms, etc. because it causes air to circulate and generates mechanical noise. Furthermore, although dehumidifiers are commercially available, they cannot be recycled and must be replaced periodically, which is cumbersome.

Furthermore, the dehumidifier described above has a drawback in that it cannot humidify and control the humidity when the room becomes overly dry.

The present invention has been made in view of such conventional examples, and its purpose is to condense the absorbed moisture within the panel and release it to the back side of the moisture absorbing body using a heating element provided on the back side. By incorporating a structure that allows the moisture absorbed by the holding device to be released into the room through the moisture absorber during drying, the structure is simple and has excellent moisture absorption and release capabilities.2. To provide a humidity control device that can be used continuously for a long period of time by making it possible to regenerate a hygroscopic filler.

[Means for solving problems]

In order to solve the problems of the prior art, the present invention has been made to solve the following problems: (1) A hygroscopic body (1) comprising a porous body having continuous fine voids and retaining a hygroscopic filler internally in the voids of a porous body that blocks airflow;
1); ■ A heating element (2) attached to the moisture absorbing body (1) in contact with or buried therein; and ■ A heating element (2) attached to the moisture absorbing body (1) so as to form a space (4) on the side of the heating element (2). A technical means is adopted in which a cover member (3) covers the W body (1) and (2) a water retaining device (7) is provided at the bottom of the cover member (3).

[For production]

(2) Moisture absorbed by the moisture absorber +11 tends to move toward the lower side of the moisture content gradient and vapor pressure gradient within the moisture absorber (1).

■At that time, since the hygroscopic filler is present in the voids, it exhibits moisture absorption capacity that is between 10 to 10 times higher than that of porous materials that do not contain hygroscopic filler, and even with small differences in moisture content and vapor pressure. Moisture movement is promoted.

(2) Therefore, when the front side (indoor side) is highly humid, the absorbed moisture moves toward the back side and spreads over the entire moisture absorbent body (1).

■Here, by generating heat from the heating element (2) installed on the back side, the moisture near the heating element (21) becomes water vapor and is released from the back side, so the moisture content near the heating element (2) decreases. At the same time, the hygroscopic filler near the heating element (2) is regenerated.

Due to the 0 heat generation, the moisture released from the back side of the moisture absorber (11) is condensed on the cover member (3), and the water retaining device (7) at the bottom is
).

■On the other hand, if the front side (indoor side) is lower in humidity than the back side,
Water in the water holding device (7) is evaporated, absorbed by the hygroscopic body (1), moved to the surface side due to the vapor pressure gradient, and released into the room from the surface side. This allows the indoor humidity to be maintained within a certain range.

〔Example〕

The porous material with micro-voids used in the present invention is: 1. Inorganic fibers such as rock wool or glass wool are deposited and integrated using a binder, 2. Nonwoven fabric or the above-mentioned fiberboard are laminated to the desired thickness ■ Inorganic materials such as gypsum, cement, calcium silicate, and ceramic sintered bodies.

Furthermore, the porous material has a moisture permeability of I Conductive resistance is 2.0 m-h
・'C/kcal or higher is preferable, and the pore size distribution is widely dispersed between 0.1 and 100 μ in order to activate capillary flow and to retain the hygroscopic filler described later. In the case of a layered porous material, one having a pore size distribution of 1 μ or more is suitable for moisture movement.

In addition, the thicker the material, the greater the water retention capacity, and when the back side is heated, the heat conduction to the front side becomes slower, making it easier to create temperature gradients and water content gradients, so at least 5I or more is required.
Preferably, the number is 201 or more.

Hygroscopic fillers used in the present invention include (1) deliquescent substances such as lucium chloride and lithium chloride, (2) water-soluble polymers such as diethylene glycol, triethylene glycol, glycerin, sodium polyacrylate, and PVA, and (2) bentonite.

Inorganic moisture absorbing materials such as sepiolite, zeolite activated alumina, xonotlite, activated carbon, molecular sieves, etc.
Examples include grafted starch, isobutylene maleic anhydride, and other water-insoluble polymer hygroscopic materials alone or mixtures thereof.

As a method for internally adding a hygroscopic filler to a porous material, the hygroscopic filler is added together with a binder and fibers and integrated into a porous material, or after obtaining a porous material in advance, a surfactant is added. A method of making a porous material hydrophilic, impregnating it with a hygroscopic filler dissolved in water, drying it, and adding it internally is taken. In the case of an inorganic material, cement or gypsum, water, and a hygroscopic filler may be kneaded together.

The heating element (2) used in this embodiment is one using a metal heating wire, or one made of a breathable sheet coated with metal etching or conductive paint, and is appropriately treated to prevent moisture and leakage. Further, in order to make heating uniform, heat-uniforming sheets such as metal nets may be integrally laminated. The exothermic temperature is sufficient if the material temperature is 5°C or more higher than room temperature, preferably 40°C to 1.
The temperature of the heating element can be set to 40"C, but the higher the temperature, the more moisture the heating element releases, so it takes only a short time. One way to generate heat is to let it absorb moisture for a certain period of time, so that the moisture in the moisture absorbing element increases. When this happens, it is effective to generate heat for several hours, and it may also be controlled using a timer, humidity sensor, or moisture content sensor placed inside the moisture absorbing body.

The cover member (3) of the present invention is preferably a resin plate, a metal plate, etc., which is moisture-impermeable and water-resistant, and has good thermal conductivity so that dew condensation is likely to occur.

In the cover member (3), the moisture absorbent body (+1) is attached so that a space (4) is formed at the back and below the moisture absorbent body (1).

A water retaining device (7) is attached to the lower part of the cover member (3).

The water retention device (7) is capable of collecting condensed water that flows through the inside of the cover member (3).
) is removable so that if it accumulates, it can be taken out and thrown away, and water can be replenished when humidifying.

In addition, in the second embodiment, as shown in FIG. 2, a heating element (6) is placed in the water holding device (7), and the heating element (6) is heated in a low humidity environment to actively heat the water. By evaporating within the cover member (3), the moisture absorber +1) is brought into a high moisture content state from the back side, and the moisture is released into the room from the front side, thereby quickly controlling the humidity in the room. Further, as shown in FIG. 2, if a ventilation fan (5) is attached to the cover member (3), the fan (5) may be selectively operated when the heating element (2) is heated.

Thereby, the moisture released from the back surface of the moisture absorbing body (1) by heating of the heating element (2) can be released to the outside of the cover member (3), and dehumidification can be performed quickly.

In addition, depending on the relative humidity of the indoor environment, the moisture content sensor (8) that detects the equilibrium moisture content of the moisture absorber (11) and the moisture absorber (11)
) heating wire (2), heating element (6) of the water holding device (7),
Automatic operation is possible if the fan (5) is controlled in conjunction with the fan (5).

Furthermore, by using a humidity sensor (9) installed on the indoor side of the moisture absorbing body to control these, if the indoor humidity becomes lower than the set humidity, the heating element (2) of the water retaining device (7) may be made to generate heat. .

In the third embodiment shown in FIG. 3, a moisture absorption port Ql) is provided on the side plate OQ of the storage box body (9), and the humidity control device shown in FIG. Attach the cover member (3) and fan (5) facing outward of the box (9). Note that Oj is a door.

In addition, the volume IM of the storage box body is the exposed area of the moisture absorber (1).
100 ct1 or more, preferably 500 to 2000
Remarkable Rm if CI11? Shows the W effect.

[Example of practical experience]

A cable heater (100v 22
．． 5W) was integrated and a water retention device was installed. The same cable heater was also attached to the bottom of the water holding device.

The heater has a moisture content sensor installed inside the moisture absorption body, and a humidity sensor is installed on the surface side of the moisture absorption body, so that the indoor humidity is 50%R.
If the moisture content of the moisture absorbent rises in response to the temperature above H, the moisture content sensor detects this and turns on the cable heater of the moisture absorption body.
When the temperature drops below this level, a humidity sensor attached to the surface of the moisture absorber detects this and turns on the heater in the water tray.

When this device was placed in an atmosphere of 25° C. and 80%, 10 −1 of water accumulated in the water holding device in one day.

Further, when the dehumidifying device of the present invention was placed in an atmosphere of 25° C. and 30% with water accumulated in the water holding device, 5 ml of water was lost per day.

〔Effect of the invention〕

According to the present invention, when the indoor temperature becomes high according to the relative humidity, the hygroscopic body absorbs moisture, and when it becomes too dry, the moisture absorbed by the hygroscopic body is released into the room. You can control the humidity.

As a result, a single piece of fur is effective as a storage room for antiques or as an indoor environment maintenance device.

In addition, it can exhibit good humidity control performance for a long period of time without producing mechanical noise. Furthermore, in the second embodiment, dehumidification can be performed even more quickly.
In the third embodiment, moisture can be released quickly.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of the first embodiment as seen from an oblique direction, FIG. 2 is a perspective view of the second embodiment as seen from an oblique direction, and FIG. is a schematic cross-sectional view of the third embodiment. DESCRIPTION OF SYMBOLS 1... Moisture absorber, 2... Heating element, 3... Cover member, 4... Space part, 5... Fan, 6... Heating element,
7... Water retention device, 8... Moisture content sensor, 9...
Box body, 10... Bottom plate, 11... Moisture absorption port, 12...
Dust filter. Patent applicant Daiken Kogyo Co., Ltd. Figure 1 *srr Figure 2 Spontaneous child 1 ε

Claims (1)

[Claims] (1) A hygroscopic body containing a hygroscopic filler internally contained within the pores of a porous body that has continuous fine pores and blocks airflow, and a hygroscopic body that is attached in contact with or embedded in the hygroscopic body. 1. A humidity control device comprising: a heating element; a cover member that covers the moisture absorber so as to provide a space on the side of the heating element; and a water retaining device provided at a lower part of the cover member.