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Construction method of non-excavation expansion clinging-type repair pipeline

A construction method and non-excavation technology, applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of complex construction, affecting flow capacity, and large loss of cross-sectional area, so as to reduce construction costs, Accelerate the construction progress, the effect of strong flow capacity

Inactive Publication Date: 2018-03-09
天津倚通科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the existing repair pipeline construction is more complicated and costly, and the construction complexity will directly affect the repair time of the pipeline, and after the original pipeline is repaired, the cross-sectional area will be greatly lost, which will affect its flow capacity

Method used

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  • Construction method of non-excavation expansion clinging-type repair pipeline
  • Construction method of non-excavation expansion clinging-type repair pipeline
  • Construction method of non-excavation expansion clinging-type repair pipeline

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Embodiment Construction

[0033] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0034] A construction method for non-excavation expansion and close-fitting pipeline repair, which is innovative in that it includes the following steps:

[0035] 1). Construction preparation: close the working space, arrange the profile winding frame, lubricating and sealing agent injection pump, control device and steel wire drawing machine at the wellhead of the existing initial inspection well. In-well assembly expansion and close-fitting winding machine;

[0036] 2). Winding pipe making: the new strip-shaped profile is transported to the expansion and close-fitting winding machine in the initial inspection well, and a pipe body with a diameter smaller than the original pipe is wound in a spiral winding manner. The pasting winding machi...

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Abstract

The invention relates to a construction method of a non-excavation expansion clinging-type repair pipeline. The construction method is characterized by comprising the following steps of 1, construction preparation, 2, winding to manufacture a tube, 3, expansion and clinging, and 4, port treatment. The construction method is scientific and reasonable in structural design, has the advantages that excavation is not needed, the construction speed is high, work with water can be conducted, the repair cost is low, the airtightness is high, the cross section loss is small, the discharge capacity is high and the achievement is easy, and the method is particularly suitable for repairing a middle and small caliber drainage pipeline, and is the construction method of the non-excavation expansion clinging-type repair pipeline with high innovativeness.

Description

technical field [0001] The invention relates to a construction method for repairing a gravity flow pipeline, in particular to a construction method for repairing a non-excavation expanding close-fitting pipeline. Background technique [0002] Urban drainage pipes are called the "underground lifeline" of the city, which shoulders the important task of urban sewage and waterlogging. As the scale of urban construction in my country continues to expand, more and more attention has been paid to the maintenance and repair of drainage pipes. The traditional method of pipeline repair is to use excavation to replace new pipelines, which results in a huge amount of engineering, consumes more manpower and material resources, and cannot complete the construction in a short period of time, which will lead to traffic jams, environmental pollution and other problems. These are modern cities. The construction was unbearable. [0003] Trenchless repair technology is an engineering technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/165
CPCF16L55/1655
Inventor 王卓杨心宇王刚赵志宾
Owner 天津倚通科技发展有限公司
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