JPH0719771A - Manufacture of rotary type latent heat exchanger - Google Patents

Abstract

PURPOSE:To provide a rotary type latent heat exchanger having uniform hole diameters by forming a disk-shaped pipe collected body wherein pipe materials having a predetermined length are densely bundled and bonding granular absorbent materials to at least the inner surfaces of the holes. CONSTITUTION:A long-sized pipe material having hexagonal section is cut to predetermined length to form a pipe material 2a. Next, a large number of the pipe materials 2a are arranged parallelly and a band 3 is wrapped around the materials and the band 3 is gradually tightened while vibration is being imparted to the whole materials, following which the opposite ends of each of the materials 2a are heated and welded to combine the materials 2a with each other. Next, adhesives are adhered to the inner and outer surfaces of a disk-shaped collected body 4, and before the adhesives are cured, granular absorbent materials are sprayed onto each end surface of the body 4 to bond the adhesives to the inner and outer surfaces of the body 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a rotary latent heat exchanger which mainly performs latent heat exchange.

[0002]

2. Description of the Related Art FIG. 7 shows a rotary latent heat exchanger used for exchanging latent heat (moisture) between air, for example, indoor air and outdoor air.

This latent heat exchanger 11 is a strip-shaped flat substrate 1.
2a and a corrugated base material 12b formed into a corrugated shape are overlapped with an adhesive to form a single-faced corrugated strip 12 (see FIG. 8), and then the plate 12 is covered with an adhesive around the core. It is manufactured by spirally winding up to a predetermined diameter via a shaft or bearing 11a at the center of winding. A hygroscopic material such as paper is generally used for the flat base material 12a and the wavefront base material 12b, and a hygroscopic material such as lithium chloride is impregnated before or after the plate is formed or after winding (Japanese Patent Laid-Open No. 58-38149). , Ibid. 55-3124
5 gazette, the same 61-252497 gazette etc.).

The latent heat exchanger 11 has a large number of small holes penetrating between the end faces, and is arranged rotatably across two air passages when used, and the air flowing through one of the air passages. By giving the latent heat taken from the air to the air flowing through the other air flow path, it is possible to exchange latent heat between the air.

[0005]

In the above conventional manufacturing method, since the single-faced corrugated board 12 is spirally wound, the difference in the amount of deformation on the side of the wavefront substrate 12b due to the difference in winding diameter is a cause. As a result, the hole shape becomes smaller from the outer peripheral portion toward the central portion, and there is a problem in that the air circulation amount and the latent heat exchange capacity become uneven.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method of manufacturing a rotary latent heat exchanger that can obtain a uniform hole shape.

[0007]

In order to achieve the above object, in claim 1, a step of forming a disc-shaped pipe aggregate by bundling pipe base materials having a predetermined length in parallel and densely and connecting them, The rotary latent heat exchanger is manufactured through a step of adhering a powdery or granular moisture absorbent to at least the inner surface of the hole of the assembly.

According to a second aspect of the present invention, a step of forming a disc-shaped pipe assembly by bundling hygroscopic pipe base materials having a predetermined length in parallel and densely, and impregnating the pipe assembly with a liquid hygroscopic material. The rotary latent heat exchanger is manufactured through the steps of

According to a third aspect of the present invention, a step of adhering a particulate moisture absorbent to at least the inner surface of the hole of the pipe base material having a predetermined length,
A rotary latent heat exchanger is manufactured through the steps of forming a disc-shaped pipe assembly by bundling the pipe base materials in parallel and densely and connecting them.

According to a fourth aspect of the present invention, a step of impregnating a pipe base material having a predetermined hygroscopicity with a liquid hygroscopic material is performed, and the pipe base materials are bundled in parallel and densely to form a disc-shaped pipe assembly. Through the forming process, the rotary latent heat exchanger is manufactured.

[0011]

According to the manufacturing method of claims 1 to 4, the pipe base materials are bundled in parallel and densely, and the holes are left in the disk-shaped pipe aggregate as it is, and the hole shape of the pipe base material is left as it is. The shape can be made uniform.

[0012]

1 shows a rotary latent heat exchanger manufactured by applying the present invention. This latent heat exchanger 1 is composed of a disk-shaped assembly of pipe base materials 2a described later, has a large number of small holes penetrating between the end faces, and has a shaft or bearing 1a serving as a rotation center at the center. There is.

A method of manufacturing the latent heat exchanger 1 will be described below with reference to FIGS. 2 to 6. First, as shown in FIG. 2, a long pipe material 2 having a hexagonal cross section obtained by extruding synthetic resin or light metal is prepared and cut into a predetermined length corresponding to the thickness of the latent heat exchanger. To form the pipe base material 2a.

Next, as shown in FIG. 3, a large number of the above-mentioned pipe base materials 2a are arranged in parallel to each other and the periphery thereof is surrounded by a band 3, and the band 3 is gradually tightened while vibrating the whole. As a result, the pipe base material 2a is in close contact with each other without a gap to form a honeycomb shape, and the disk-shaped pipe assembly 4 having a substantially circular outer periphery is formed.

Then, as shown in FIG. 4, a heater 5 is pressed against each of the end faces of the pipe assembly 4 to melt both ends of each pipe base material 2a, thereby performing heat welding,
This is naturally cooled to bond the pipe base materials 2a to each other. After the connection, the band 3 is removed from the pipe assembly 4.

Next, as shown in FIG. 5, the disc-shaped pipe assembly 4 is immersed in the tank 5 containing the adhesive 5a, and the adhesive 5a is attached to the inner and outer surfaces thereof. As the adhesive 5a, a water resistant one, for example, an acrylic emulsion or the like can be preferably used, and a spray such as a spray can be adopted as the attaching method other than the above.

Next, as shown in FIG. 6, a granular granular moisture absorbent (hereinafter referred to as moisture absorbent powder) 6 is sprinkled toward each end surface of the pipe assembly 4 before the adhesive is cured, and the moisture absorbent powder 6 Are adhered to the inner and outer surfaces of the pipe assembly 4. In addition to silica gel, zeolite, etc., various hygroscopic powder particles can be used as the hygroscopic material powder 6. The adsorbing of the hygroscopic material powder 6 can also be performed by placing the pipe assembly 4 before the adhesive is cured in a container in which the hygroscopic material powder 6 is disturbed.

Next, the pipe assembly 4 after the adsorbent powder has been adhered
Install the shaft or bearing of. As described above, the latent heat exchanger 1 shown in FIG. 1 is manufactured.

According to the above manufacturing method, the pipe base material 2a
Since they are bundled in parallel and densely, the pipe base 2
It is possible to obtain a latent heat exchanger in which all the hole shapes are uniform while leaving the hole shape a has. Further, if the pipe base material 2a having a small hole shape is used, the outer shape of the latent heat exchanger 1 can be approximated to a perfect circle, and a desired circular shape advantageous as a rotary type can be secured. Further, since the pipe base materials 2a having a hexagonal cross section are connected in a state where their side surfaces are in surface contact with each other, high strength and rigidity can be secured in the latent heat exchanger itself. Furthermore, if a metal is used as the pipe base material, a latent heat exchanger capable of sensible heat exchange can be obtained.

If the pipe base material is formed of paper or non-woven fabric containing organic fibers or inorganic fibers as a main component, a liquid absorbent material can be used to impregnate the pipe assembly with the absorbent material. Is. Specifically, if the combined pipe assembly is dipped and impregnated in a tank containing a hygroscopic material liquid such as lithium chloride solution, the shaft or bearing is simply mounted on the pipe assembly after the solidified hygroscopic material liquid. The latent heat exchanger shown in FIG. 1 can be manufactured by

Further, the adhesion of the powdery or granular absorbent material and the impregnation of the liquid absorbent material may be carried out not on the pipe assembly but on the pipe base material before joining. Specifically, a powdery or granular hygroscopic material (in this case, a sheet-shaped one) may be adhered to at least the inner surface of the pipe base material before bonding through the adhesive in the same manner as described above, or may absorb moisture. 1 is manufactured by impregnating a flexible pipe base material with a liquid hygroscopic material in the same manner as described above and bundling them together to form a pipe assembly and mounting a shaft or a bearing. be able to.

Further, the pipe base material is not limited to a hexagonal cross section, and various polygonal shapes other than hexagon such as a quadrangular cross section and a triangular cross section can be adopted.

[0023]

As described in detail above, according to the manufacturing method of the first to fourth aspects, it is possible to obtain a latent heat exchanger in which all the hole shapes are uniform while leaving the hole shape of the pipe base material as it is. it can. Also, if a pipe base material having a small hole shape is used, the outer shape of the latent heat exchanger can be approximated to a perfect circle, and a desired circular shape advantageous as a rotary type can be secured.

[Brief description of drawings]

FIG. 1 is a perspective view of a latent heat exchanger.

FIG. 2 is a perspective view of a pipe base material.

[Figure 3] Manufacturing process diagram

FIG. 4 Manufacturing process diagram

[Figure 5] Manufacturing process diagram

FIG. 6 Manufacturing process diagram

FIG. 7 is a perspective view of a conventional latent heat exchanger.

FIG. 8 is a partial perspective view of a plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Latent heat exchanger, 2a ... Pipe base material, 4 ... Pipe assembly, 5a ... Adhesive agent, 6 ... Hygroscopic material powder.

Claims (4)

[Claims] 1. A step of forming a disk-shaped pipe aggregate by bundling a predetermined length of pipe base material in parallel and densely, and bonding the powder aggregate to at least the inner surface of the hole of the pipe aggregate. A method for manufacturing a rotary latent heat exchanger, comprising: 2. A step of forming a disc-shaped pipe aggregate by bundling hygroscopic pipe base materials of a predetermined length in parallel and densely, and impregnating the pipe aggregate with a liquid hygroscopic material. A method of manufacturing a rotary latent heat exchanger, comprising: 3. A disc-shaped pipe aggregate is formed by adhering a powdery moisture absorbent to at least the inner surface of a hole of a pipe base having a predetermined length, and bundling the pipe bases in parallel and densely. A method of manufacturing a rotary latent heat exchanger, comprising: 4. A step of impregnating a pipe base material having a predetermined hygroscopicity with a liquid hygroscopic material, and a step of bundling and bonding the pipe base materials in parallel and densely to form a disc-shaped pipe aggregate. A method for manufacturing a rotary latent heat exchanger, comprising: