JPH08159367A - Pipe reclaiming member, and stain-proofing method of conduit by this pipe reclaiming member - Google Patents

Abstract

PURPOSE: To provide a pipe reclaiming member capable of reclaiming a conduit subjected to stain-proofing treatment, and a stain-proofing method of conduit by this pipe reclaiming member. CONSTITUTION: In a pipe reclaiming member 1 in which a special glass fiber 11 braided into cylinder and an optical hardening unsaturated polyester resin 12 are enclosed by an inner film 13 and an outer film 14 in the state where the special glass fiber 11 is impregnated with the optical hardening unsaturated polyester resin 12, a stain-proofing agent is added to the inner film 13. In a stain-proofing method of conduit, the optical hardening unsaturated polyester resin 12 is hardened in the state where the pipe reclaiming member l is inserted to the inner circumferential surface of a conduit, and the conduit is stain-proofed by the stain-proofing agent added to the inner film 13 of the tube reclaiming member 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe rehabilitation member having an antifouling effect and a method for antifouling a pipeline using the pipe rehabilitation member.

[0002]

2. Description of the Related Art Conventionally, there has been known a pipe rehabilitation member in which a reinforcing material woven into a tubular shape is impregnated with a resin component and the reinforcing material and the resin component are enclosed by an inner film and an outer film. . This pipe rehabilitation member is
After being inserted into the rehabilitated part of the pipeline, it is cured by UV irradiation etc. in a form that immediately responds to the sectional shape of the pipeline, resulting in durability,
It was designed to rehabilitate pipelines with excellent chemical resistance and watertightness.

[0003]

However, since the above-mentioned conventional pipe rehabilitation member has not been subjected to antifouling treatment, the pipeline to be rehabilitated is a barnacle, a mussel, etc. such as a seawater transport pipe. If the marine organisms are treated with antifouling treatment to prevent them from adhering, the marine organisms will adhere to the rehabilitated part, and the marine organisms will block the pipeline, However, this causes the inconvenience that the flow of is deteriorated.

Therefore, it is possible to apply an antifouling agent to the rehabilitated part after rehabilitation to perform antifouling treatment.
In this case, there is an inconvenience that the work is troublesome. In addition, when the antifouling agent is applied, uneven application of the antifouling agent or dripping of the applied antifouling agent is likely to occur, which causes a problem that a stable antifouling effect cannot be obtained.

The present invention has been made in view of the above circumstances, and provides a pipe rehabilitation member capable of rehabilitating an antifouling-treated pipe, and an antifouling method using the pipe rehabilitation member. It is an object.

[0006]

The pipe rehabilitation member of the present invention for solving the above-mentioned problems is a tubular braided reinforcing material impregnated with a resin component, and the reinforcing material and the resin component are the inner film. A tube rehabilitation member which is enclosed by an outer film and an outer film, wherein an antifouling agent is added to the inner film.

Further, in the method for preventing fouling of a pipeline according to the present invention for solving the above-mentioned problems, a resin component is cured in a state where the above-mentioned tube rehabilitation member is attached to the inner peripheral surface of the tube, and the tube rehabilitation is performed. The antifouling agent added to the inner film of the member is used for antifouling the pipeline.

[0008]

According to the present invention, since the antifouling agent is added to the inner film in advance, the inner film to which the antifouling agent has been added is used to keep the inner film around the inner surface of the tube while the pipe is normally rehabilitated by the tube rehabilitation member. It will be attached to the surface.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an outline of the entire structure of the pipe rehabilitation member 1, and FIG. 2 shows a rehabilitation state of the transportation pipe 2 by the pipe rehabilitation member 1.

That is, in the tube rehabilitation member 1, the special glass fiber 11 and the photocurable unsaturated polyester are impregnated with the photocurable unsaturated polyester resin 12 in the special glass fiber 11 woven into a tubular shape. The resin 12 is encapsulated by an inner film 13 and an outer film 14, and an antifouling agent is added to the inner film 13.

The antifouling agent is not particularly limited, but various antifouling agents such as metal compounds such as cuprous oxide, organotin compounds and zinc pyrithione, and organic compounds such as thiazoline derivatives and pyridine derivatives can be used. it can.

The antifouling agent is used as the inner film 13
As a method of adding to the ready-made inner film 13
It can be added by applying an antifouling agent prepared as a paint to the surface of. In addition, an antifouling agent has been previously added to the forming raw material of the inner film 13,
By molding the inner film 13 with this molding raw material, the inner film 13 to which the antifouling agent is added can be obtained. As a raw material for forming the inner film 13, polyolefin such as polyethylene or vinyl chloride,
Polyamide, polyurethane, polyester, etc. are used, but not limited to these.

The inner film 13 thus added with the antifouling agent may be used alone, or may be used by laminating a plurality of sheets.

In the case of rehabilitating the seawater transportation pipe 2 which has been subjected to the antifouling treatment by the above-described pipe rehabilitation member 1, first, the portion of the transportation pipe 2 to be rehabilitated is washed. This cleaning can be performed by, for example, the high-pressure water sprinkler 3.

Then, the pipe rehabilitation member 1 is attached to the washed portion.
Insert. As this insertion method, a pipe contact member 1 (not shown) that expands due to air pressure or the like may be inserted into the inner surface of the rehabilitation portion in a pressure contact state, or the inner film 13 may be placed outside first. The tube rehabilitation member 1 that has been reversed to the inner film 1
It may be attached to the rehabilitated portion of the transport tube 2 while reversing the regular state in which 3 is inside.

Then, an ultraviolet irradiation lamp 4 is made to travel inside the pipe rehabilitation member 1, and the pipe rehabilitation member 1 is transported to the transportation pipe 2
Complete the work by curing along the inside of the. In this state, in order to exhibit the antifouling effect, the cured photocurable unsaturated polyester resin 12 and the inner film 13
It is necessary to firmly adhere to and. Therefore, when the adhesive force between the photocurable unsaturated polyester resin 12 and the inner film 13 is insufficient in the cured state, the portion where the photocurable unsaturated polyester resin 12 and the inner film 13 are in contact with each other is previously prepared. It is desirable to apply a primer (for example, Death Module RE manufactured by Bayer Co., Ltd.) in advance.

According to the pipe rehabilitation member 1, since the antifouling agent is added to the inner film 13, the inner film 13 to which the antifouling agent is added is normally used in a state where the seawater transport pipe 2 is rehabilitated. It will be stuck on the inner surface of the pipe,
The antifouling effect can be easily obtained without separately performing the antifouling treatment after the construction.

Further, in this case, as shown in FIG. 3, when the antifouling effect of the inner film 13 disappears over time, marvelous creatures 5 such as barnacles and mussels will gradually adhere, but If a plurality of inner films 13 to which this antifouling agent is added are laminated, these marvelous organisms 4 can be removed by simply peeling off the inner film 13 of the innermost layer. At the same time, the new inner film 13 is exposed on the inner surface of the tube, and the new inner film 1
The antifouling effect of the antifouling agent added to No. 3 can be obtained.

Since the photocurable unsaturated polyester resin 12 is used as the resin component in this embodiment,
It is designed to be cured by irradiation of the ultraviolet irradiation lamp 4, but when the resin component is a thermosetting resin, it can be cured by means of irradiation heat of a lamp (not shown) or blowing of hot air. .

[0021]

As described above, according to the present invention, the inner film to which the antifouling agent is added is attached to the inner peripheral surface of the pipe while the pipe is normally rehabilitated by the pipe rehabilitation member. Therefore, the antifouling effect can be easily obtained without separately performing the antifouling treatment after the construction.

Further, even in a pipeline having a small pipe diameter, which makes the inner peripheral surface of the pipe antifouling, the antifouling can be easily performed. Furthermore, in advance,
Since the antifouling effect is obtained by the antifouling agent added to the inner film, destabilization of the antifouling effect due to uneven application of the antifouling agent or liquid dripping is eliminated, as in the case of applying the antifouling agent. A stable antifouling effect can be obtained.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing the outline of the overall structure of a pipe rehabilitation member.

FIG. 2 is a process diagram for explaining an outline of a pipe rehabilitation state by a pipe rehabilitation member.

FIG. 3 is a partial cross-sectional view illustrating an antifouling state by a pipe rehabilitation member.

[Explanation of symbols]

 1 Pipe Rehabilitation Member 11 Special Glass Fiber (Reinforcing Material) 12 Photocurable Unsaturated Polyester Resin (Resin Component) 13 Inner Film 14 Outer Film

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Claims (2)

[Claims] 1. A pipe rehabilitation member in which a reinforcing material woven into a tubular shape is impregnated with a resin component, and the reinforcing material and the resin component are enclosed by an inner film and an outer film. A pipe rehabilitation member characterized by having a soiling agent added. 2. A pipe remodeling member is attached to an inner peripheral surface of a pipe line to cure a resin component, and an antifouling agent added to an inner film of the pipe remodeling member stains the pipe line. The method for antifouling a pipeline using the pipe rehabilitation member according to claim 1.