JPH01281128A - Assembly for dehumidification - Google Patents

Abstract

PURPOSE:To obtain an assembly structure for dehumidification causing less trouble and superior in durability and safety by installing a heating element, which is made of a heating wire and control parts enclosed in a corrosion- and water-resisting pipe, attached to or buried in a moisture absorbent body, thereby contriving the simplification in structure and the enhancement in reproducibility. CONSTITUTION:A heating element 2 is fitted in a groove 11 at the back face of a moisture absorbent body 2 of 10mm or larger in thickness, which is prepared by impregnating a hygroscopic filler such as calcium chloride into a base material such as a rock wool board. The heating element 2 consists of a heating wire 21, a temperature sensor 22 as a control member, a temperature fuse 23, an insulation tube 21 for covering the formers and a connection terminal, all of which are enclosed in a pipe 26, which is made of a material such as a corrosion- and water-resisting metal and bent into the same shape as the groove 11. Water absorbed in the moisture absorbent body is emitted and the moisture absorbent body is regenerated by applying a current through the heating element 2.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a dehumidifying structure in which moisture in the air taken into a moisture absorbing body from one side thereof is released from the other side by means of a heating element.

(Conventional technology) Conventionally, hot air is blown onto a hygroscopic body that has absorbed moisture from the air to expel high-humidity air, thereby regenerating the hygroscopic body and removing moisture from the collected high-humidity air. A dehumidifying structure is known.

(Problem to be Solved by the Invention) However, this dehumidification structure requires complicated mechanisms such as air circulation means for supplying and collecting hot air and means for removing moisture from the collected high-humidity air. Not only that, but also
Since the method uses hot air to recover moisture, there is a problem in that the regeneration efficiency is insufficient.

(Object of the Invention) In view of the above points, the present invention has been made to further improve the above-mentioned moisture-proof structure, and it is a predetermined structure in which a hygroscopic filler is internally retained in continuous micro-pores of a base material. The main purpose is to simplify the mechanism and improve regeneration efficiency by placing a heating element in contact with or embedding the moisture absorbent body, which is thicker than the thickness, and directly heats the moisture absorbent body.

However, this dehumidification structure regenerates the moisture absorption body by directly heating the moisture absorption body and evaporating the absorbed moisture using the heating element, so the heating element is placed in contact with or buried in one surface of the moisture absorption body. Therefore, a new problem arises in that the moisture in the hygroscopic body and the hygroscopic filler adversely affect the heating wire and control part of the heating element.

Therefore, by providing a layer that protects the heating wires and control parts of the heating element, it is possible to prevent the heating wires and control parts from being adversely affected by adsorbed water and hygroscopic fillers, making it difficult to break down, having good durability, and Another object of the present invention is to provide a highly safe moisture-proof structure.

(Means for Solving the Problems) In order to achieve these objects, the solution taken by the present invention is to attach a heating element by contacting or burying it in one surface of the moisture absorbent body, and to connect the heating wire and control of the heating element to the surface of the moisture absorbent body. The specific solution is to encapsulate the parts inside the tube, and the specific solution is to use a hygroscopic body with a thickness of 101 m or more, which is made by holding a hygroscopic filler internally in continuous micro-pores of a base material, and It consists of a heating element attached in contact with or buried in a moisture absorbing body, and the heating wire of the heating element and control parts are enclosed inside a corrosion-resistant and water-resistant tube.

(Function) With the above configuration, when the dehumidification structure constructed according to the present invention is placed indoors, the following phenomenon occurs.

■ Moisture taken into the hygroscopic body moves to the side where the moisture content and vapor pressure gradient within the hygroscopic body are lower.

■ In this case, the hygroscopic material retains the hygroscopic filler internally within the continuous microscopic voids, so compared to a porous material that does not contain the hygroscopic filler, it has several times to several tens of times the hygroscopic ability. At the same time, moisture transfer occurs even with a slight difference in moisture content or vapor pressure.

■ Therefore, when the surface side (indoor side) is highly humid, the moisture taken in from the surface side moves to the back side and spreads over the entire moisture absorbent body.

■ After that, when the heating element attached directly to the back of the moisture absorber is made to generate heat, the moisture near the heating element turns into water vapor and is released from the back of the moisture absorber, so the moisture content near the heating element decreases and the heat is generated. Hygroscopic filler near the body is regenerated.

■ If the moisture absorber is thicker than a certain level, the temperature rise on the front side will be delayed, so if the heating element is allowed to generate heat for a certain period of time, moisture will be released from the back side of the moisture absorber, and the moisture on the front side will move to the back side, causing As a result, the hygroscopic filler on the surface side of the hygroscopic body is also regenerated.

During the process of the above phenomenon, the heating wire of the heating element and the control parts are sealed inside the corrosion-resistant and water-resistant tube, so they do not come into contact with moisture or hygroscopic filler, so they do not corrode. , insulation properties will not deteriorate.

(Example) Embodiments of the present invention will be described below based on the drawings.

1 and 2 show a dehumidifying structure A according to a first embodiment of the present invention. It consists of a heating element 2 attached to the front side in Figure 1).

The hygroscopic body 1 is formed by holding a hygroscopic filler internally added to the pores of a base material having continuous fine pores.

The base material may be any material as long as it does not easily break or deform due to moisture absorption.Specifically, it may include: ■Water-resistant non-woven fabric or paper laminated and integrated as appropriate, ■Gypsum, cement, calcium silicate, etc. Inorganic bodies such as rock wool or ceramic sintered bodies; ■Wood-based plates such as fiberboard, particle board, or paperboard; or ■Polyvinyl chloride sheet with pore size adjusted by foaming; polyolefin with pore size adjusted by stretching. Examples include a single body or a composite body of a porous body such as a sheet or a fiberboard whose pore diameter is adjusted by compression.

In addition, the base material has a moisture permeability of 1×10-3g/m・h-1■
Hg or more, and the heat conduction resistance is 2.0 m-h to increase the temperature difference between the front and back surfaces and activate moisture movement to the back surface.
・C/kca or higher is preferable, and in order to activate capillary flow and efficiently retain the hygroscopic filler, it is particularly preferable that the pore size distribution is widely dispersed between 0.1 and 100μ. .

Furthermore, the board thickness of the base material needs to be 101 or more, and the larger the board thickness, the larger the water retention capacity, and the slower the heat conduction to the front side when the back side is heated, resulting in a temperature gradient and water content. It is easier to obtain the slope, so 20al! 1 or more is preferable.

The moisture-absorbing filler internally added to the above base material includes: ■ deliquescent substances such as dicium chloride, lithium chloride, ■ water-soluble polymers such as diethylene glycol, triethylene glycol, glycerin, sodium polyacrylate, and PVA, and ■ bentonite. , Seviolite, zeolite, activated alumina, xonotlite, activated carbon, molecular sieves, and other inorganic moisture absorbents; Grafted starch, isobutylene maleic anhydride, and other water-insoluble polymer moisture absorbents alone or in combination. .

As a method for internally adding a hygroscopic filler to a base material, a dissolved hygroscopic filler is impregnated into the base material after molding, or the hygroscopic filler is mixed with the raw material of the base material and cured.

The moisture absorbent body 1 formed as described above has its side surfaces covered with rectangular cover members 3, and has bent grooves 11 provided on its back surface.

A heating element 2 is fitted into the groove 11 of the moisture absorbing body 1, and the heating wires 21 constituting the heating element 2 are surrounded by an insulating material such as glass wool or silicone rubber. It is formed into a string or narrow tape.

Temperature sensors 22 are connected to connection terminals 2 at required locations on the heating wire 21.
When the heating wire 21 reaches a predetermined temperature, for example, 80° C., 100° C. (or 140° C.), the power to the heating wire 21 is cut off.

A temperature fuse 23 is connected in series to another part of the heating wire 21 via a connecting terminal 24, and the heating wire 21 is heated to a predetermined temperature, for example, 20° below the set temperature of the temperature sensor 22.
When the temperature reaches a temperature higher than 0.degree. C., the current flowing through the heat generation #s21 is cut off. Further, although not shown, it is preferable to connect a safety part such as a current fuse to the heating wire 21 as appropriate.

A temperature sensor 22, a temperature fuse 23, and a current fuse, which are control parts of the heating element 2, are covered by an insulating tube 25, and the insulating state of the insulating tube 25 from the outside is maintained.

The heating wire 21, the above-mentioned control parts, the connecting terminal 24, and the insulating tube 25 are sealed inside a tube 26 bent in the same shape as the groove 11 of the moisture absorbent body 1.

The pipe 26 is made of a corrosion-resistant and water-resistant material, such as metal,
It is made of plastic or the like, and its inner diameter is preferably about 51 mm when enclosing the heating wire 21 with a diameter of 3 mts. One end 26A of the tube 26 joins the tube 26 near the other end of the tube 26, causing heat generation inside the tube 26!
21 extends to the outside of the cover member 3 in parallel from the connection point to the other end side. The heating wire 21 extending to the outside of the cover member 3 is connected to a lead wire 27, and this lead wire 27 is connected to a power source when the heating element 2 is used.

FIG. 3 shows an example of use of the dehumidification structure A according to the first embodiment, and in this example of use, the back side of the cover member 3 that covers the moisture absorbent body 1 extends rearward, and the cover member 3 extends backward. A door 4 that can be opened and closed is attached to the rear end of 3. When the dehumidifying structure A having such a structure is fitted into a wall so that its surface faces indoors and the door 4 is located outdoors, and electricity is applied to the heating element 2, moisture is absorbed into the moisture absorbing element 1 from the surface side. Moisture in the room moves to the back side, is evaporated by the heating element 2, and is discharged to the outside from the side of the opened door 4.

FIG. 4 shows a dehumidifying structure A according to a second embodiment of the present invention, in which a heating element 2 is fitted into the inner peripheral surface of a cylindrical moisture absorbent body 1 in a spiral shape. It becomes. When using this dehumidification structure A, a discharge vibrator (not shown) is connected to one end of the hollow part 5 of the moisture absorbent body 1, and air is blown from the other end of the hollow part 5. In this way, moisture taken into the moisture absorbent body 1 from the outer peripheral surface of the moisture absorbent body moves toward the inner peripheral surface side and is discharged outside the system through the discharge pipe.

FIG. 5 shows a dehumidifying structure A according to a third embodiment of the present invention, and this dehumidifying structure A includes a moisture absorbing body 1 and a heat generating body 2 detachably attached thereto.

The moisture absorbent body 1 has a flat rectangular parallelepiped shape, and is provided with an inverted U-shaped groove 11 on the front side in FIG. The three side surfaces and the upper and lower surfaces of the moisture absorbent body 1 other than the front side are covered by a cover member 3, and the cover member 3 has an extending portion 31 that extends slightly toward the front side. There is.

The heating element 2 has an inverted U-shape similar to the groove 11 of the moisture absorbing element 1, and is supported by a horizontally elongated heating element support member 6. The heating element support member 6 is a frame with an open rear side, and a door 61 that can be opened and closed is attached to the front side.
- A control board 62 with built-in switches, timers, etc. is attached to the side. The outer diameter of the heating element support member 6 is formed to be slightly smaller than the inner diameter of the extending portion 31 of the cover member 3, and the heating element supporting member 6 is connected to the extending portion 31 of the cover member 3.
It can be inserted into. In this case, the stretching part 3
A notch 32 into which both ends of the heating element 2 can be fitted is provided on one side of the heating element 1 . In this way, the heating element 2 is connected to the moisture absorbing element 1.
By making it removable, it becomes easy to attach the waterproof seal and assemble, inspect, and repair the dehumidifying structure A. Note that under normal indoor conditions, it is preferable to set the timer so that the heating element 2 is energized for about 2 hours out of 24 hours.

(Experiment example) Next, an experimental example of the dehumidifying structure A of the first embodiment will be shown.

Rock wool board impregnated with 20% by weight of calcium chloride, a hygroscopic filler (specific gravity: 0°25, average pore diameter: 55%)
100 V, 22.
A heating element 2 which is made by enclosing a temperature fuse that melts at 9,109℃ and a temperature sensor that turns off at 80℃ inside a stainless steel tube with an inner diameter of 51I11.
A dehumidifying structure A was prepared. Then, the above-mentioned cover member 3 is attached to this dehumidifying structure A, and the temperature is set at 25°C.
After being left in an atmosphere of 70% RH, electricity was applied to the heating element 2. As a result, the temperature of the moisture absorbent body 1 rose to 50°C, and after 5 minutes of electricity, dew condensation appeared inside the cover member 3.
Water could be collected at a rate of 5 mN/hour. If a commercially available disposable dehumidifier is kept in a closet or the like, the amount of dehumidification collected is about 100 mU/month, so the magnitude of the dehumidifying effect of the dehumidifying structure A according to this example can be understood.

Also, when the sampled water was collected and evaporated, no solid content was present. From this, it can be understood that the hygroscopic filler did not flow out from the hygroscopic body 1 into the sampled water, and that the hygroscopic performance of the hygroscopic body 1 did not deteriorate even during long-term use.

In addition, a normal indoor dehumidifier can reach up to 100 m under the above conditions.
Since the amount to be collected is approximately Q/hour, if the size of the moisture absorption surface of the moisture absorbing body 1 is 600 m5 x 600 + 8 ml, the amount to be collected is approximately the same as that of the above-mentioned indoor dehumidifier.

(Effects of the Invention) As explained above, according to the dehumidifying structure A of the present invention, the moisture taken in by the moisture absorption body is evaporated by the heating element, so the mechanism is simple and the regeneration efficiency is high. Because the body's heating wires and control parts are enclosed inside a corrosion- and water-resistant tube, they do not come into contact with moisture or hygroscopic fillers, and are protected from corrosion by water or hygroscopic fillers. Since insulation properties cannot be deteriorated, breakdowns are less likely to occur, and durability is good and safety is high.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a dehumidification structure according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1,
FIG. 3 is a perspective view showing an example of use of the dehumidification structure shown in FIG. 1;
FIG. 4 is a perspective view showing a dehumidifying structure according to a second embodiment of the present invention, and FIG. 5 is a state in which a moisture absorbing body and a heating element are separated in a dehumidifying structure according to a third embodiment of the present invention. FIG. 6 is a partial sectional view showing a state in which the moisture absorbing body and heat generating body of FIG. 5 are combined. A...Dehumidification structure, 1...Moisture absorber, 2...Heating element, 3...Cover member, 6...Heating element support member, 2
DESCRIPTION OF SYMBOLS 1... Heat generating wire, 22... Temperature sensor, 23... Temperature fuse, 26... Tube. Patent applicant Daiken Kogyo Co., Ltd. Agent Patent attorney 1) Buddhist attorney Patent attorney
Numa Nami Tomoaki Figure 1 (Ignition"<m

Claims (1)

[Claims] (1) A hygroscopic body having a thickness of 10 mm or more and having a hygroscopic filler internally added and retained in continuous microscopic voids of a base material;
A dehumidifier comprising a heating element attached in contact with or buried in the moisture absorbing body, the heating element having a heating wire and control parts sealed inside a pipe having corrosion resistance and water resistance. structure for.