JP3396624B2 - Pipe insulation - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating device for pipes, and more particularly to an improvement of a pipe heat insulating device using a fiber heat insulating material such as rock wool or glass wool as a heat insulating material.

[0002]

2. Description of the Related Art Conventionally, as a heat insulating device for piping, the outer circumference of the piping is covered with a fiber heat insulating material such as a rock wool heat insulating tube and a glawl heat insulating tube, and the outer circumference is covered with an exterior material made of aluminum-processed glass cloth Things are known. The exterior material is an indispensable constituent member in the heat insulating structure of this kind of piping in order to prevent the heat insulating material from being deteriorated by absorbing moisture from the heat insulating material and to prevent the heat insulating material from being damaged. Has become.

[0003]

The heat insulation device for piping having the above-mentioned structure is easier to install than the heat insulation device for covering a metal plate as an exterior material, but the overlapping end portion of the covered exterior material is bonded with an adhesive tape. Generally, it is fixed by such as when there is a drawback that it is difficult to reuse when the heat insulating material is removed for maintenance and inspection of piping.

In order to solve the above-mentioned drawbacks, a means of fixing with a binding material such as a band can be considered, but since the fibrous heat insulating material has flexibility, when tightly bound with the binding material,
In some cases, the overlapping end portions of the exterior material between the binding material and the binding material may open to form a gap.

The present invention has been made to solve the above-mentioned problems of the prior art. Even if the binding material is tightly bound, the overlapping end portions of the outer packaging material are opened to form a gap. The main purpose of the invention is to provide a heat insulation device for pipes that does not have a pipe.

[0006]

In order to achieve the above object, the present invention provides a heat-resistant structure in which the outer circumference of a pipe is covered with a fibrous heat insulating material such as rock wool or glass wool, and the outer circumference thereof is provided with a metal layer. In a heat insulating device for a pipe formed by coating with an exterior material made of a fiber cloth, the circumferential overlapping ends of the exterior material pipes are reinforced with a band-shaped hard sheet, and the periphery of the exterior material such as a band. The gist is that the heat insulating material and the exterior material are fixed by a binding material or a fastener.

Examples of the strip-shaped hard sheet used in the present invention include hard plastic sheets such as hard vinyl chloride.

According to the configuration of the heat insulating device for piping of the present invention,
Since the circumferential overlapping ends of the piping of the exterior material are reinforced with a band-shaped hard sheet, when binding with a band,
It is possible to prevent the overlapping end portion of the exterior material from being easily bent, and prevent the overlapping end portion from opening and forming a gap.
Further, by constructing the fibrous heat insulating material and the exterior material covering the outer peripheral surface thereof in advance with an adhesive or the like, workability at the site can be improved.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As a preferred embodiment of the present invention, as shown in FIG. 1, a pipe 1 is covered with an outer circumference rockwool heat insulation tube 2, and the outer circumference thereof is covered with an aluminum layer 3b.
In a heat insulating device for a pipe covered with an exterior material 3 made of a glass cloth 3a, a strip-shaped hard plastic is formed on the surface of the lower end of the overlapping ends of the exterior material 3 in the circumferential direction. The sheet 4 is fixed with an adhesive, and the band 5 is attached to the overlapping end portion of the exterior material 3 to form the structure.

[0010]

FIG. 1 shows an embodiment of the present invention. In FIG. 1, 1 is a pipe, 2 is a rock wool heat insulating tube covering the pipe, and 3 is an exterior material in which an aluminum layer 3b is formed on the surface of a glass fiber cloth 3a by vapor deposition of aluminum. A strip-shaped hard plastic sheet 4 is fixed to the surface of the lower end of the overlapping ends of the pipes in the circumferential direction with an adhesive. Reference numeral 5 is a band as a binding material which is attached near the overlapping end portion of the outer packaging material 3 in the circumferential direction with a required interval in the tube axial direction.

According to the above construction, the outer casing 3 is coated by covering the outer periphery of the heat insulating cylinder 2 with both ends of the pipe in the circumferential direction, and then fixing the both ends with the band 5. Can be performed easily and easily.

Further, according to the above construction, since the overlapping ends of the pipes of the exterior material in the circumferential direction are reinforced by the band-shaped hard plastic sheet 4, when the band 5 is tightly fastened and fixed, the overlapping is performed. The ends are less likely to bend, and it is possible to prevent the overlapping ends from opening and creating a gap.

The reinforcing strip-shaped hard plastic sheet 4 may be fixed to the rear surface of the upper end of the overlapping ends of the pipe of the exterior material in the circumferential direction by an adhesive. Alternatively, for example, one of the overlapping ends of the outer packaging material in the circumferential direction may be folded back and sewn to form a bag portion, and the strip-shaped hard plastic sheet 4 may be inserted into the bag portion. Moreover, the exterior material 3 can be improved in workability at the site by adhering to the heat insulation tube 2 in advance at a portion excluding both ends thereof to be integrated.

FIG. 2 shows another embodiment of the present invention. The same or similar members as those in FIG. 1 are designated by the same reference numerals. That is, 1 is piping, 2 is rock wool heat insulation tube, 3
Is an exterior material, 3a is a glass fiber cloth forming the exterior material, and 3b is an aluminum layer.

In the present embodiment, the fasteners 6 are attached near the overlapping ends of the pipes of the exterior material 3 in the circumferential direction of the pipe with a required interval in the axial direction of the pipes. It is configured to be fixed. The heat retaining device for the pipe having the above-described configuration also has the same effect as the heat retaining device of FIG.

[0016]

As described above, according to the present invention,
In the heat retaining device for a pipe, the outer periphery of the pipe is covered with a fiber heat insulating material such as rock wool or glass wool, and the outer periphery thereof is covered with an outer covering material made of a heat resistant fiber cloth having a metal layer on the surface thereof. Since the overlapping end of the pipe of the material in the circumferential direction is reinforced with a band-shaped hard sheet, the overlapping end is less likely to bend when fixed with a binding tool such as a band or a fastener. It is possible to prevent the opening and the formation of the gap. Further, by constructing the exterior material with the fibrous heat insulating material in advance, workability at the site can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a heat insulating device for piping showing an embodiment of the present invention.

FIG. 2 is a perspective view of a heat insulating device for piping showing another embodiment of the present invention.

[Explanation of symbols]

1 piping 2 Rockwool insulation tube 3 Exterior materials 3a Glass fiber cloth forming exterior material 3b Aluminum layer 4 hard plastic sheet 5 Band as binding material 6 fasteners

Claims (4)

(57) [Claims] 1. A heat insulation device for a pipe, wherein the outer circumference of the pipe is covered with a fibrous heat insulating material such as rock wool or glass wool, and the outer circumference thereof is covered with an exterior material made of a heat resistant fiber cloth having a metal layer on the surface thereof. The circumferentially overlapping ends of the pipes of the exterior material are reinforced with a band-shaped hard sheet, and the heat insulating material and the exterior material are fixed around the exterior material with a binding material such as a band or a fastener. A heat retention device for piping, which is characterized in that 2. A circumferential overlap of pipes of the exterior material
One of the ends is folded back and sewn together to form a bag.
The heat insulation device for piping according to claim 1 , wherein a hard sheet is inserted into the bag portion . 3. The belt-shaped rigid sheet is rigid vinyl chloride
Of a hard plastic sheet such as
The heat insulation device for piping according to any one of the above. 4. The fibrous heat insulating material and the exterior material are previously integrated.
Any one of claims 1 to 3 in which an embodied product is used.
Thermal insulation system of pipes of crab described.