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Hose hole repairing method

A technology of holes and hoses, applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of non-woven fabrics such as external force, long time, poor sealing, etc., to increase fastness and avoid fastness Falling effect

Inactive Publication Date: 2021-05-28
海宁管丽科技新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When in use, the sealing of the fabric at the joint is poor, and operations such as transportation and dragging are required from soaking the resin to curing, which takes a long time
After the construction is completed, the outer surface of the resin-lined hose will be turned over to form the inner surface of the underground pipeline. If resin leakage or penetration occurs, the construction and repair quality will be affected.
During the preparation of CIPP hose or during transportation, the non-woven fabric may be subjected to external force, causing holes to form on the surface, which will affect the subsequent construction and repair quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment

[0021] to combine figure 1 with figure 2 , to describe this embodiment in detail. A kind of hose hole repairing method related to this embodiment comprises the following steps:

[0022] S1 Preparing the sheet patch: cutting the sheet patch according to the size of the hole on the hose; the material used for the sheet patch is a hot-melt material. In this embodiment, the cut sheet patch is rectangular, and the side length is at least 6 cm larger than the maximum diameter of the hole.

[0023] More specifically, the sheet patch is made of PU or PE material, and the hose is a CIPP fiber hose.

[0024] S2 Preparing a heat insulating sheet: selecting a heat insulating sheet according to the size of the holes, the heat insulating sheet has a hollow part, and the hollow part is rectangular. The heat insulating sheet used in this embodiment is generally in the shape of a zigzag. The length of the inner side of the hollow part of the thermal insulation sheet is at least 4 cm larg...

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Abstract

The invention discloses a hose hole repairing method. The hose hole repairing method comprises the following steps that S1, a sheet patch is prepared by using a hot melting material; S2, a heat insulation sheet with a hollow part is provided; S3, heat bonding is carried out, specifically, a heat insulation sheet is placed around a hole, the sheet patch covers the hollow part, the sheet patch is heated, and the sheet patch in a micro-molten state is pressed on the hole and the surrounding position by using a leveling roller, so that the sheet patch is leveled after being attached; and S4, trimming is carried out, specifically, redundant sheet patches on the heat insulation sheet are removed, cooling is carried out, then the heat insulation sheet is removed, and repairing is completed. The mode of heating the hot melting sheet patches is adopted, so that the sheet patches are better combined with fibers in a hose, and the combination firmness is improved. The heat insulation sheet with the hollow part is arranged at the edge of each sheet patch, so that the problem of insufficient bonding firmness of the edge parts of the sheet patches due to insufficient heating is solved. The hose around the sheet patches can be prevented from being influenced by high temperature, and the firmness of the hose is prevented from being reduced.

Description

technical field [0001] The invention relates to the technical field of CIPP hoses, in particular to a method for repairing holes in hoses. Background technique [0002] On damaged or damaged pipelines, such as sewer and gas lines, curing in place with resin-lined hoses has been a very successful method of repairing underground pipelines. This trenchless method of pipe restoration avoids the need to dig underground pipes and cause damage to surface structures such as streets and buildings. The in-situ curing method includes firstly placing a flexible resin-lined hose inside the pipeline, and applying pressure to the resin-lined hose by means of water pressure or air to make it adhere to the inner wall of the underground pipeline, and Maintain pressure until the inside of the lined hose becomes rigid in cured form. The resin inside the resin-lined hose is cured by heating or ultraviolet light curing to make it rigid. [0003] In the prior art, the lined hose is made by usin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/168
CPCF16L55/1683
Inventor 孙跃平孙大为梁修军杨后军朱丹华马中伟
Owner 海宁管丽科技新材料有限公司
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