A high-pressure resistant inner liner pipe and its construction technology

Abstract

A high-pressure-resistant lined pipe and its construction process, including an outer pipe, which includes a tough layer, which once includes a hard sheet, a gap resin network, an anti-seepage film and a barrier layer; the barrier layer is used for waterproofing and anticorrosion, and is located at The outermost layer, the anti-seepage film is located in the innermost layer, and the space between the barrier layer and the anti-seepage film is sandwiched by a hard sheet. The hard sheet is round or oval, and the thermosetting resin is filled between the hard sheets to form a gap resin network. .The hard sheet is a support layer adhered to the inner side of the outer tube with a plastic sheet, metal sheet or ceramic sheet. The support layer includes a light-cured layer and a heat-cured layer. After the light-cured layer is cured, the round tube shape that can support the outer tube also includes Tube, the inner tube is made of thermosetting resin or PVC material, its outer diameter is larger than the inner diameter of the outer tube, the difference is 1 / 6-1 / 12 of the diameter of the outer tube; the gap resin net uses thermosetting resin. The lining pipe has a better bearing capacity and the ability to resist internal high pressure.

Description

Technical field[0001]The present invention relates to an inner liner tube that delivers high pressure resistance to high pressure, and a mounting process.Background technique[0002]In situ thermoplastic molding is the application of a thermoplastic molding process in the project site to install the inner wall of the plant produced in the pipe. The strength of the liner can reach an external load that separates the underground pipe, including hydrostatic pressure, soil pressure, and traffic load. Some products can be applied to the full structure repair of low pressure pipelines. Because of the excellent segregation of the pipeline, in the case where the masterpiece strength of the high voltage pipe is not severely damaged, it can be used for repair of high pressure pressure pipes. In situ thermoplastic non-excavation repair process is in the inside of the tube to be used, with the original pipe as a mold, a new pipeline is newly created by a thermoplastic process to achieve the purpo...

AI Technical Summary

Problems solved by technology

Most of the lining pipes are made of thermosetting or light-curing materials. After curing, the toughness of the pipe is relatively poor. In the position where the stress is concentrated, it is easy to cause damage to the lining pipe.

Especially in the high-pressure environment, in order to avoid reducing the flow and velocity of the pipeline, the liner is usually relatively thin and brittle. If the original pipeline is damaged, it is easy to damage the damaged part of the original pipeline due to stress concentration

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