JPH0213209B2 - - Google Patents

Abstract

PURPOSE:To enable to form easily and reliably a flow path, by a method wherein a protruded part is kept formed on a predetermined position of a heat press, and surrounding part and a part becoming a divider part for formation of the flow path are pressed and heated partially. CONSTITUTION:On account of a matter that protrusion 12 are kept formed respectively on parts corresponding to a sorrounding part and a divider part, simultaneously with gelation solvent welding of the divider part 8 for sealing of the surrounding of a heat exchanger panel and formation of a flow path are perfomed with the protrusions 12 by pressing and heating by making used of a mold 11 of a heat press which is capable of pressing partially. In other words, with this partial paressing and heating, both side resin sheets of the double-strutural woven fabric are made to weld with a solvent to each other through the double-structural woven fabric. As an adhesive agent in a gelatinized state can be soaked easily into the woven fabric, a surrounding sealed part 7 and the divider part 8 are made into rigid article by welding sufficiently with the solvent. With this construction, a special sealing component for the solvent welding is unnecessary and the flow path of the heat exchanger panel can be formed easily and, moreover, reliably.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for forming a flow path in a heat exchange panel such as a sheet-like floor heating panel, in which a flow path for flowing a heat medium such as hot water is formed.

[Background technology]

Conventionally, when forming a water channel inside a heat exchange panel, it was done as follows. In other words, in the part that becomes the partition for forming the flow path,
By applying a supplementary material of the same quality as the panel outer layer resin from the outside of the panel and heat-pressing it, only the part where the supplementary material has been applied is dented and the melted resin is welded to fill the internal space, and the supplementary material is A partition is formed inside the applied part.
However, the inside of the heat exchange panel is made of filament woven fabric with excellent heat resistance, and even if the resin covering it is heated from the outside, the inside cannot be sufficiently fused, making it difficult to maintain its strength. It was hot. For this reason, reinforcement was attempted by sewing, etc., but this was not easy as it required a sewing machine with extremely deep pockets. It also had the disadvantage of requiring supplementary materials.

[Purpose of the invention]

In order to solve the above problems, this invention
The object of the present invention is to provide a method for forming flow channels in a heat exchange panel, which allows flow channels to be formed easily and reliably.

[Disclosure of the invention]

In order to achieve the above object, the present invention heat-presses a double structure woven fabric in which filaments are cross-woven to form a space between them that serves as a flow path for a heat medium, and a watertight resin sheet. In order to obtain a heat exchange panel in which both sides of the double structure woven fabric are covered with a watertight resin layer by polymerization, a convex portion is formed at a predetermined position of the heat press, and the convex portion is used to seal the surrounding area. The outline of this method is to form a flow path in a heat exchange panel in which the resin sheets on both sides are welded to each other through a double-layered woven fabric by locally pressurizing and heating the part that becomes the partition for forming the flow path. It is said that This will be explained in detail below based on drawings showing examples thereof.

FIG. 1 shows the structure of a heat exchange panel.

The heat exchange panel 1 consists of a watertight resin layer 2 such as vinyl chloride resin, and a woven fabric 3 that is polymerized and integrated with the watertight resin layer 2. The woven fabric 3 has a space 2 with a predetermined thickness that becomes a flow path secured by a vertical filament 4 that extends in a wavy manner and a horizontal filament 5 that crosses the woven fabric 3 through the woven fabric 3 periodically. It has a heavy structure. In order to circulate hot water or the like in this space, it is necessary to form a flow path as shown in FIGS. 2 to 4. In FIG. 2, the periphery of the heat exchange panel 1 is welded to form a seal portion 7, except for the connection portion with the nozzle 6. From near the center of the connection part toward the opposing apex, a partition part 8 for forming a flow path is provided halfway in the diagonal direction so as to roughly divide the heat exchange panel into two parts. When the nozzle 6 is connected to the heat exchange panel 1, the hot water flowing from the inlet 9 of the nozzle 6 is
It circulates along the partition 8 in the direction shown by the arrow in the figure and flows out from the outlet 10 of the nozzle 6. In FIG. 3, the connection part with the nozzle 6 is provided on the side of the heat exchange panel 1, and the partition part 8 is provided halfway from the center of the connection part toward the opposite side. , hot water, etc., circulate in the direction shown by the arrow in the figure. In FIG. 4, the connection portion with the nozzle 6 is provided near the top of the heat exchange panel 1. In FIG. The partition portion 8 extends in a hook shape from near the center of the connection portion so as to substantially divide the heat exchange panel 1 into two. In the figure, 7 is a seal portion.

In order to form such a partition portion 8, the flow path forming method for a heat exchange panel according to the present invention is performed as follows.

That is, when making a heat exchange panel as shown in Fig. 1 by laminating watertight resin sheets on both sides of a double-structure woven fabric and heat-pressing them, it is preferable to use a double-structure woven fabric. A sol agent such as vinyl chloride paste is interposed between this and a watertight sheet such as vinyl chloride that covers it.
This is heated to gel and strengthen the adhesion between the two and the adhesion between the resin sheets. At this time, as shown in FIG. Heat press mold 11 that can be locally pressurized by keeping it
At the same time as gelling, the convex portion 12 seals the periphery of the heat exchange panel and welds the partition portion 8 for forming the flow path. That is, by this localized pressure and heating, the resin sheets on both sides of the double-structure woven fabric are welded to each other through the double-structure woven fabric. FIG. 6 is a partial sectional view of a heat exchange panel formed by the heat exchange panel flow path forming method according to the present invention. Since the sol-like adhesive can easily penetrate into the interior of the woven fabric 3, the surrounding seal portion 7 and partition portion 8 are sufficiently welded and strong. In the figure, 4 is a vertical filament, and 5 is a horizontal filament.

〔Effect of the invention〕

Since the present invention is configured as described above, the flow path of the heat exchange panel can be easily and reliably formed without the need for a special sealing member for welding. Furthermore, since the flow path can be formed at the same time as the surface is laminated, time can be shortened, and quality can be stabilized at low cost.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional perspective view of a main part showing the structure of a heat exchange panel to which the heat exchange panel flow path forming method according to the present invention is applied, and FIGS. 2 to 4 are flow diagrams of the heat exchange panel according to the present invention. FIG. 5 is a partial sectional view of a heat press mold used in the method of forming channels in a heat exchange panel according to the present invention; FIG. The figure is a partially sectional perspective view showing a heat exchange panel with flow channels formed therein obtained using the same mold as above. 1... Heat exchange panel, 2... Resin layer, 3... Woven fabric, 4
...Vertical filament, 5...Horizontal filament, 7
... Seal part, 8... Partition part, 11... Mold (heat press).

Claims (1)

[Scope of Claims] 1. A double structure woven fabric in which filaments are cross-woven so as to form a space between them that serves as a flow path for a heat medium, and a watertight resin sheet are polymerized using a heat press. To obtain a heat exchange panel in which both sides of a double-layered woven fabric are covered with a watertight resin layer,
A convex part is formed at a predetermined position of the heat press, and by using this convex part to locally pressurize and heat the peripheral part and the part that will be the partition part for forming the flow path, the resin sheets on both sides are pressed together. A method for forming flow channels in heat exchange panels by welding two layers to each other through a double-layered woven fabric. 2. A resin sol is interposed between the double structure woven fabric and the watertight resin sheet, and its gelation is used to increase the adhesive strength between the double structure woven fabric and the resin layer and between the resin layers. A method of forming channels in a heat exchange panel according to claim 1 for strengthening.