JPS5921857Y2 - Single wave molded body for gas absorption element - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a single-corrugated molded body for a gas absorption element obtained by bonding a corrugated sheet material and a planar sheet material.

A rotary type heat exchange element made by stacking single wave molded bodies of a corrugated sheet material and a flat sheet material and molded into a cylindrical shape, or a cross flow type or parallel flow type heat exchange element in which the single wave formed body is formed into a rectangular tube shape. If a sheet containing activated carbon is used as at least one of the corrugated sheet material and the planar sheet material in the exchange element, a gas absorption element that adsorbs and exchanges organic solvent vapor, gases with odors such as ozone, and other harmful gases can be obtained. .

The present invention provides a single-wave molded article for a gas absorption element as described above,
Gas absorption is achieved by using carbon fiber-containing paper as a sheet material with adsorption activity, and at the same time inserting an appropriate number of threads in parallel between the flat sheet material and the corrugated sheet material so as to intersect with the small through holes. This aims to increase the gas absorption efficiency of the element and improve its shape retention.

Embodiments will be explained below with reference to the drawings. Fig. 1 shows a single-wave molded body for a gas absorption element according to the present invention, and 1 in the drawing shows an arbitrary material such as paper, cloth, asbestos paper, synthetic resin film or sheet, metal thin plate, etc. A corrugated sheet material composed of, 2 has a diameter of 3~
Activated carbon fibers of 10 μm and 1 to 20 mm in length are 30 to 80% bulbs, synthetic bulbs, and/or glass fibers are 60 to 10%, and the size is 5 to 10%.
1 to Q, a planar sheet material made of carbon fiber-containing paper made to a thickness of about 5 mm, and a suitable adhesive such as polyacetic acid is applied only to the ridgeline 5° 5... of the corrugated sheet material 1. Apply vinyl adhesive and attach both sheet materials 1
, 2 are pasted together, and a small through hole 3.3 is formed between both sheet materials 1 and 2, and a small through hole 3.3 is formed between both sheet materials 1 and 2. It is made by gluing together threads 4, 4, such as synthetic fibers, semi-synthetic fibers, recycled fibers, twisted natural fibers, glass fiber rovings, thin metal wires, etc. so as to be perpendicular to ....

The above-mentioned single-wave molded body is wound and laminated around a core material 6 as shown in FIG. 2 to obtain a cylindrical rotary gas absorption element having a large number of small through holes 3 on both sides. As shown in Fig. 3 or 4, by cutting into squares, rectangles, rhombuses, or other parallelograms and stacking them, the small through holes are parallel flow type in one direction, or the small through holes 3 are perpendicular to each other in each stage. A direct light flow type gas absorption element is obtained.

In the above example, paper mixed with carbon fiber was used only for the planar sheet material 2, and a sheet with no gas absorption properties was used for the corrugated sheet material 1, but conversely, carbon fiber was mixed only in the corrugated sheet material 1. Paper may also be used, and it is clear that if carbon fiber-containing paper is used for both the corrugated sheet material 1 and the planar sheet material 2, the efficiency of gas absorption will be greatly increased.

In order to use the parallel flow type gas absorption element shown in FIG. Desorbs harmful gases absorbed by passing air and water vapor,
In order to use the cross-flow type gas absorption element shown in Fig. 4, heat exchange is performed between the two types of gases to be treated that pass between the small through holes 3 and 3 that are perpendicular to each other, and at the same time the gases contained in both gases are exchanged. After the harmful gas is absorbed, high-temperature gas such as high-temperature air or water vapor is passed intermittently between the small through holes 3 and 3 that are perpendicular to the left, and the absorbed harmful gas is desorbed.

As mentioned above, this invention uses paper containing activated carbon fibers instead of conventional activated carbon particles as the gas adsorption active material, so activated carbon fibers have a significantly larger specific surface area than activated carbon particles. Therefore, the amount of adsorption per unit volume or unit weight is enormous, and in the case of activated carbon particles, it takes over 100°C or close to 200°C to desorb the adsorbed substances that have penetrated into the microcracks scattered on the surface. In contrast, carbon fiber has an extremely small diameter, so the amount of adsorbed gas is only 50%.
The adsorbed gas can be easily and quickly desorbed by passing a desorption gas, such as hot air, at about 100°C.

In addition, in this proposal, an appropriate number of threads are inserted between the planar sheet material and the corrugated sheet material in the longitudinal direction, so the tensile strength in the longitudinal direction of the planar sheet material and the corrugated sheet material is increased. It has significantly greater resistance to tearing in the same direction.

Furthermore, since the thread 4 is disposed in a direction substantially perpendicular to the gas passage 3, in the absence of the thread 4, the gas flowing in the gas passage 3 forms a laminar flow as shown in FIG. 5A, and a boundary layer forms. As the gas flow develops, the gas flow in the central part does not touch the wall of the gas passage 3 and the efficiency of adsorption and desorption is low.In contrast, in this case, as shown in FIG. 5B, the thread 4 becomes an obstacle to the gas flow and the gas flow becomes a turbulent flow, which increases the rate of contact with the wall of the gas passage 3, increasing the efficiency of adsorption and desorption.

The threads 4, 4... are at the ridgeline of the corrugated sheet 1 at 5°5...
. . . is adhered to the planar sheet 1, the rate of turbulence generation and therefore the efficiency of adsorption and desorption become even higher.

In addition, carbon fiber-containing paper has low tear strength and abrasion resistance, and the gas absorption element obtained by molding both a corrugated sheet material and a flat sheet material with carbon fiber-containing paper lacks durability. When carbon fiber-containing paper is used for either the flat sheet material or the corrugated sheet material, and the other is made of strong sheet material such as Japanese paper, western paper, asbestos paper, synthetic paper, plastic film, or thin metal plate. This strong sheet material makes it possible to maintain the strength of the single wave molded product or the gas absorption element as a whole.

As mentioned above, the present invention has an effective effect as a single-wave molded body for producing a gas absorption element with high gas absorption efficiency and good shape retention.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a part of the single-wave molded body for a gas absorption element of the present invention, and Figures 2 to 4 are perspective views showing examples of gas absorption elements molded using the single-wave molded body of the present invention. Figure 2.
The figure shows a rotating type gas absorption element, FIG. 3 shows a parallel flow type gas absorption element, and FIG. 4 shows a cross flow type gas absorption element. FIG. 5 is an explanatory diagram showing the state of gas flow inside the small through hole 3. FIG. 5A shows the case where the thread 4 is not bonded, and FIG. 5B shows the case where the thread 4 is bonded.

Claims (1)

[Scope of utility model registration request] A corrugated sheet material 1 and a planar sheet material 2 made of carbon fiber-containing paper are bonded together to form small through holes 3 that communicate with both edges of both sheet materials 1 and 2, and small through holes 3 are formed between both sheet materials 1 and 2. A single wave molded body for a gas absorption element made by bonding threads 4, 4, etc. so as to intersect with the through hole 3.