JP2001141384A - Partition wall material for total heat exchange element, and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a partition wall material for total heat exchange elements for suppressing the generation of mold and hence foul odor for a long term and for reducing manufacturing costs, and its manufacturing method. SOLUTION: A small-gauge wire 12 that is made of metal copper or a copper alloy is buried in a process for producing paper 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partition material for a total heat exchange element used in a total heat exchanger, and more particularly, to a partition material using copper or a copper alloy having antibacterial properties and a method of manufacturing the same. Things.

[0002]

2. Description of the Related Art In an air conditioning system, a sensible heat (temperature difference) and a latent heat (humidity difference) between a primary airflow (exhaust air from a room) and a secondary airflow (air supply to a room) for energy saving. The total heat exchanger that performs the heat exchange of (1) is used. The principle is that heat flows from a high temperature side to a low temperature side by conduction through a partition having moisture permeability and hygroscopicity, and moisture (moisture) flows from a high humidity side to a low side by diffusion. Moisture is absorbed inside.

A total heat exchange element for performing total heat exchange of a total heat exchanger has a structure as shown in FIG. 5, for example. That is, the total heat exchange element 1 includes the spacers 4 forming the flow paths 2a and 2b.
And the partition 3 interposed between the spacers 4. 5 is a frame. Then, the indoor air A is discharged outside the room as the air B heat-exchanged through the flow path 2a, while the outdoor air C flows into the room as the heat exchanged air D through the flow path 2b.

As the material of the partition wall 3, it is necessary to have a hygroscopic property, and for example, paper or non-woven fabric impregnated with a hygroscopic agent is used. In addition, inorganic materials such as lithium chloride, calcium chloride, and colloidal silica (see Japanese Patent Publication No. 3-66597) or organic acid salts (see Japanese Patent Application Laid-Open No. 10-60796) are used as the moisture absorbent. I have.

[0005]

By the way, since the partition wall material has a hygroscopic property, mold is generated on the partition wall due to dew condensation.
Along with that, bad smells and hygiene problems have arisen. In view of this, there has been proposed a partition wall material in which an organic polymer hygroscopic agent in which a bactericidal metal ion is fixed in the molecule is fixed (see JP-A-11-9942). However, the above-mentioned partition wall material requires time and effort to fix the organic polymer moisture absorbent, increases the cost, and has a problem in durability.

[0006]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above problems, and the invention according to claim 1 is characterized in that a total heat exchange containing metallic copper or a copper alloy is included. This is an element partition material. According to a second aspect of the present invention, in the first aspect, a thin wire, a net, or a metal lath made of metallic copper or a copper alloy is embedded in paper or a nonwoven fabric. According to a third aspect of the present invention, in the first aspect, a net or a metal lath made of metal copper or a copper alloy is attached to the surface of the paper or the nonwoven fabric. Further, the invention according to claim 4 is characterized in that, in the step of forming paper or nonwoven fabric, a thin wire, a net or a metal lath made of metallic copper or a copper alloy is embedded. It is a method of manufacturing a material.

By the way, there are copper, silver, and zinc among the inorganic substances having a bactericidal property. Among these substances, silver has the strongest bactericidal property, and then copper and zinc have the strongest bactericidal property. Having. However, considering that silver is expensive and zinc is relatively weak bactericidal, copper is practically the most suitable bactericidal substance. Therefore, when metallic copper or a copper alloy is included in the partition wall material for a total heat exchange element as described in claim 1, metallic copper or a copper alloy is gradually eluted by the moisture attached to the partition walls, and copper ions are removed. Generate.
Since this copper ion has bactericidal properties and prevents the occurrence of mold,
The odor and hygiene problems due to the partition walls can be solved. As described above, when copper or copper alloy in a metal state is included in the partition wall material, the effective period of the sterilizing effect is longer and semipermanently than when copper or copper alloy is included in a state of copper ions (for example, using an organic polymer). Become. Further, since copper or copper alloy in a metal state is included in the partition wall material, manufacturing is easier and cost is reduced as compared with a case where copper is included in a state of copper ions.

[0008] The partition material may include metal copper or a copper alloy in the form of a thin wire, a net, or a metal lath embedded in paper or nonwoven fabric. As shown in FIG. 6, for example, a metal lath is formed by forming a mesh on a thin plate by a stretch cutting method. A number of short cuts are made in a thin metal plate with a blade, and the cut is stretched in a direction perpendicular to the cut. Things. Further, the partition wall material may include metal copper or a copper alloy in the form of a net or a metal lath adhered to paper or non-woven fabric. Claim 2
The partition wall material described above can be manufactured by embedding a fine wire, a net, or a metal lath made of metal copper or a copper alloy in the paper or nonwoven fabric forming step.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of one embodiment of a partition wall material for a total heat exchange element according to the present invention. In FIG. 1, reference numeral 11 denotes paper which is a base material of the partition wall material, and reference numeral 12 denotes an extremely fine wire made of metallic copper. In the present embodiment, a thin line 12 is embedded in the paper 11 in a process of making the paper 11. The thickness of the fine wire 12 is preferably about several tens μm to several hundred μm.

FIG. 2 is a sectional view of another embodiment. In the present embodiment, in the process of making the paper 11, the net 1 made of copper wire is used.
3 is embedded in paper 11.

FIG. 3 is a sectional view of still another embodiment. In this embodiment, a net 1 made of copper wire is provided on both sides of a paper 11.
3 is folded back and attached.

FIG. 4 is a sectional view of still another embodiment. In this embodiment, a metal lath 1 made of copper is
4 (shown in FIG. 6).

Note that the present invention is not limited to the above embodiment. For example, a nonwoven fabric may be used instead of paper as the base material of the partition wall material. Further, a copper alloy may be used instead of metallic copper. Further, the form of metallic copper or copper alloy is not limited to the above form as long as the moisture permeability of the base material is not impaired. When the base material of the partition wall material is fibrous, copper or a copper alloy material may be woven. Further, when a copper or copper alloy material is adhered to the surface of the base material, it is not always necessary to securely bond the copper or copper alloy material with an adhesive, and the copper or copper alloy material may be in contact with the base material. Therefore, without using a partition material in which a copper or copper alloy material is previously adhered to the base material, when assembling the total heat exchange element, it may be assembled so that the copper or copper alloy material contacts the partition material. Needless to say.

[0014]

As described above, according to the present invention, it is possible to suppress the generation of mold of the partition wall material for a total heat exchange element and the offensive odor associated therewith for a long period of time, and to reduce the production cost. Has an effect.

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of a partition wall material for a total heat exchange element according to the present invention.

FIG. 2 is a cross-sectional view of another embodiment.

FIG. 3 is a cross-sectional view of still another embodiment.

FIG. 4 is a cross-sectional view of yet another embodiment.

FIG. 5 is an explanatory diagram of a total heat exchange element.

FIG. 6 is a plan view of a metal lath.

[Explanation of symbols]

 11 Paper 12 Fine wire 13 Net 14 Metal lath

Claims (4)

[Claims] 1. A partition wall material for a total heat exchange element, comprising metallic copper or a copper alloy. 2. The partition wall material for a total heat exchange element according to claim 1, wherein a thin wire, a net, or a metal lath made of metallic copper or a copper alloy is embedded in paper or nonwoven fabric. 3. The partition wall material for a total heat exchange element according to claim 1, wherein a net or a metal lath made of metallic copper or a copper alloy is adhered to the surface of paper or nonwoven fabric. 4. The method for producing a partition material for a total heat exchange element according to claim 2, wherein a thin wire, a net, or a metal lath made of metallic copper or a copper alloy is embedded in the step of forming paper or nonwoven fabric.