JPH102621A - Heat exchange sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a low-cost multi-purpose sheet by binding a lateral tensile resistance material to a longitudinal tensile resistance material at an impregnated adhesive regulating line to constitute a biaxial direction lattice structure. SOLUTION: Fluidized adhesive 2 such as, for example, a resin adhesive is fed in a stripe-like state on a surface of a fibrous sheet 1 to be impregnated while conveying the sheet 1, rolled to be laterally widened, and the adhesive 2 is solidified by a cooling operation at the time of rolling. Thus, a regulating line in which a part 4 having enriched liquid retentivity and a part 5 having deteriorated liquid retentivity are alternately aligned is formed. An adhesive 3 impregnated in a lateral tensile resistance material 6 of a sewing yarn is functioned as a longitudinal tensile resistance material. They are bounded to one another at an intersection of stitches to constitute a biaxial direction lattice structure of lateral and longitudinal directions. Thus, a sheet having enriched water retentivity and sufficient tensile strength can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange sheet, for example, a heat collection sheet used for a heat collector of a solar heat collector, and a structure for shielding the surface of a building exposed to solar heat to suppress an increase in the temperature of the atmosphere inside the building. The present invention relates to a shielded heat collecting sheet, a heat collecting sheet that evaporates and concentrates a heat medium flowing down along a normal line, or a cooling sheet by vaporizing a heat medium using latent heat loss.

[0002]

2. Description of the Related Art A method of providing a regulation line along a heat exchange surface and restricting the flowing direction of a heat medium by the regulation line is disclosed in, for example, Japanese Patent Application Laid-Open No. 63-297 by the same applicant as the present application.
No. 966 (Japanese Patent Application No. 62-134376).

[0003]

There are various types of heat transfer media, and the heat transfer / radiation / evaporation / concentration is diversified. In some cases, strong acidity must be handled. No. The heat exchange sheet must be highly flexible, and in some cases it may be required to be repeatedly cleaned and reused. . In addition, it is expected that a laminated structure needs to be frequently generated according to the type of the heat medium used and the application. Therefore, it is very convenient to have a heat exchange sheet as an inexpensive material that can be used for a wide variety of applications by stocking a relatively small number of sheet materials. That is, it can be used alone,
It is convenient if there is a material sheet that can be appropriately laminated and integrated as required.

[0004]

According to the present invention, a fibrous sheet such as a nonwoven fabric, a woven fabric, a knitted fabric, or Japanese paper is subjected to a transverse tensile force applied to the fibrous sheet. Provide a tensile resistance material to protect in the horizontal direction,
A plurality of fluid adhesives are streaked on at least one surface of the fibrous sheet at intervals along a flow path of a heat medium that intersects with the tensile resistance fiber material. The liquid adhesive sheet material is impregnated with the liquid adhesive to form a regulation line having a difference in liquid retention properties between a portion impregnated with the fluid adhesive and a portion not having the fluid adhesive. Thus, a heat exchange sheet reinforced in at least a biaxial direction is obtained, in which the heat medium has directionality and uses this reference line as a second tensile resistance material.

[0005]

The tensile resistance in the transverse direction and the tensile resistance in the longitudinal direction, which is the reference line of the impregnated adhesive, are fixed to each other to form a biaxial lattice structure, which is sufficiently liquid-retaining. A sheet having a high tensile strength is formed. This sheet itself has the function of a heat exchange sheet with tensile resistance performance, and when used alone, it can be used as a falling heat exchange sheet that gives the flowing heat medium regularity. When it is used in the form of a heat exchange sheet, it functions as a falling heat exchange sheet and as a reinforcing layer. The sheet itself is a product and can be distributed as a material for a laminated sheet. The purchaser of the sheet can use the sheet alone, laminated, or in combination with a sheet of another material.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective cross-sectional view showing an example of a heat exchange sheet according to the present invention, FIG. 2 is an enlarged cross-sectional view showing a state where both sides of a fibrous sheet are impregnated with an adhesive and rolled, and FIG. It is sectional explanatory drawing which shows the setting state of an adhesive agent.

[0007] The fibrous sheet 1 includes paper materials such as pulp paper and Japanese paper, natural fibers such as cotton and hemp, or synthetic fibers or a blend of these fibers, and, if necessary, an ultrafine copper wire (for fungicide and sterilization). A woven fabric, nonwoven fabric, or knitted fabric made of a fiber material containing is used.

[0008] The fibrous sheet 1 is conveyed and fed using a suitable feeding equipment. Along with this movement, a fluid adhesive 2, for example, a melt of a resin adhesive or a thermoplastic plastic, is caused to flow on the surface of the fibrous sheet 1 in a streak form from nozzles spaced at appropriate intervals. Rolling while impregnating the porous sheet and spreading it laterally, and solidifying the fluid adhesive by the cooling action during rolling. At that time, the impregnated adhesive 3 fills the space between the fibers of the fibrous sheet to form a portion 5 having a lower liquid retention performance than the other portions 4 not impregnated with the adhesive.
In this way, a normal line is formed in which the portions 4 having a high liquid retaining property and the portions 5 having a poor liquid retaining property are alternately arranged in a stripe shape.

Reference numeral 6 denotes a transverse tensile resistance material of the sewing thread which is sewn at an appropriate interval, and 7 denotes an intersection thereof. The seams are provided in parallel at intervals. The impregnated adhesive 3 functions as a tensile resistance material in the longitudinal direction, and these tensile resistance materials are fixed to each other at the intersection of the stitches to form a lattice structure in the vertical and horizontal directions, and are sufficiently liquid-retaining. A sheet having a high tensile strength is formed.

[0010] The fibrous sheet and the fluid adhesive may have a color such as black, red, or blue.

The fibrous sheet and the fluid adhesive can have a transparent or translucent light transmitting property.

The fibrous sheet has a color such as black, red, and blue, and the fluid adhesive can have a property of transmitting transparent or translucent light.

[0013] The fibrous sheet is made of a transparent or translucent material having a property of transmitting light.
It may have a color such as red or blue.

According to the heat exchange sheet of the present invention, heating / cooling of an agricultural greenhouse, winter heat collection in the cultivation and fishery of saltwater fish, summer cooling of a factory building roof, low temperature heating of a hot water pool, and microbial decomposition tank Supplying various products such as winter heating, preheating of washing water for washing aircraft and vehicles in winter, cooling equipment using latent heat loss due to heat of vaporization, etc. and products that meet the required service life / mechanical strength at low prices. can do.

[Brief description of the drawings]

FIG. 1 is a sectional perspective view showing an example of a heat exchange sheet according to the present invention.

FIG. 2 is an enlarged sectional view showing an example of a heat exchange sheet.

FIG. 1 is an enlarged sectional view showing an example of a lattice structure of a heat exchange sheet according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 fibrous sheet 2 fluid adhesive 3 impregnated adhesive 4 part rich in liquid retention 5 part poor in liquid retention 6 tensile resistance material

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[Procedure amendment]

[Submission date] April 7, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a sectional perspective view showing an example of the structure of a heat exchange sheet according to the present invention.

FIG. 2 is an enlarged sectional view showing an example of the structure of the heat exchange sheet.

FIG. 3 is an enlarged sectional view showing an example of a lattice structure of the heat exchange sheet according to the present invention.

[Description of Signs] 1 Fibrous sheet 2 Fluid adhesive 3 Impregnated adhesive 4 Portion rich in liquid retention 5 Portion poor in liquid retention 6 Tensile resistance material

Claims (8)

[Claims] 1. A tensile resistance material for protecting a fibrous sheet against a lateral tensile force applied to the fibrous sheet is provided in a fibrous sheet such as a nonwoven fabric, a woven fabric, a knitted fabric or Japanese paper in a lateral direction. In addition, a plurality of fluid adhesives are streaked on at least one surface of the fibrous sheet at intervals in a direction along a flow path of a heat medium intersecting with the tensile resistance fiber material. The liquid adhesive sheet material is impregnated with the liquid adhesive to form a normal line having a difference in liquid retaining property between a portion impregnated with the liquid adhesive and a non-impregnated portion. A heat exchange sheet reinforced in at least a biaxial direction, wherein the heat medium in the middle of flowing down has directionality and uses this reference line as a second tensile resistance material. 2. The heat exchange sheet according to claim 1, wherein the fibrous sheet and the fluid adhesive have a black color.
Heat exchange sheet with red, blue and other colors. 3. The heat exchange sheet according to claim 1, wherein the fibrous sheet and the fluid adhesive have a transparent or translucent light transmitting property. 4. The heat exchange sheet according to claim 1, wherein the fibrous sheet has a color such as black, red, or blue, and the fluid adhesive transmits transparent or translucent light. Equipped with a heat exchange sheet. 5. The heat exchange sheet according to claim 1, wherein the fibrous sheet is made of a transparent or translucent light transmitting material, and the fluid adhesive is black, red,
A heat exchange sheet that exhibits a color such as blue. 6. The heat exchange sheet according to claim 1, wherein the fluid adhesive comprises a resin adhesive. 7. The heat exchange sheet according to claim 1, wherein the fluid adhesive is made of a thermoplastic resin in a molten state. 8. The heat exchange sheet according to claim 6, wherein the fibrous material contains ultrafine metal fibers such as copper in the fibers.