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A polyurea spraying construction method for pipeline repair

A pipeline repair and construction method technology, which is applied to coatings, pipe components, pipes/pipe joints/fittings, etc., can solve problems such as ineffective repairs, and achieve long service life, fast curing speed, and short construction period.

Active Publication Date: 2021-06-01
WUHAN EASY SIGHT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above technical problems, the present invention provides a polyurea spraying construction method for pipeline repair, which eliminates the limitation that the existing pipeline repair process cannot be effectively repaired when the pipeline leaks or there is clear water on the surface

Method used

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Examples

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Embodiment Construction

[0023] The principles and features of the present invention are described below, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention. The present invention is described more specifically by way of example in the following paragraphs. Advantages and features of the present invention will be apparent from the following description and claims.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0025] An embodiment of the present invention is proposed, and the polyu...

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PUM

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Abstract

A polyurea spraying construction method for pipeline repair disclosed by the present invention includes sending the repair film into the pipeline to be repaired, putting tie heads on both ends of the repair film to form an air cavity, and placing the two ends of the nozzle rope respectively After passing through the two tying heads, put the nozzle assembly into one end of the repair membrane and bind it with the nozzle rope, wind the composite pipeline on the reel and pass through one end of the tying head to connect with the nozzle assembly; The cavity is inflated to make the outer wall of the repairing membrane contact the inner wall of the pipeline to be repaired. The nozzle rope is pulled to drive the nozzle assembly to move from one end of the repairing membrane to the other end. Stop the wire reel and turn off the fan. After the air cavity is depressurized, open the tie heads at both ends, remove the composite pipeline on the nozzle assembly, and remove the nozzle assembly and the two tie heads. The above construction method effectively avoids the impact on the repair effect when the pipeline to be repaired has leakage or open water, and the construction period is short.

Description

technical field [0001] The invention relates to the technical field of pipeline repair, in particular to a polyurea spraying construction method for pipeline repair. Background technique [0002] Along with China's urbanization process, the underground water supply network is also rapidly expanding and extending. The original water supply pipelines are taking on more and more important tasks in ensuring water supply and serving the society. However, with the passage of time, the aging of the pipe network has also brought a series of problems. For the country, society, and water supply companies, how to complete the pipeline renovation with relatively low cost, high-efficiency construction methods, and excellent repair quality, become a major issue before us. [0003] With the continuous development of technology, the non-excavation repair technology has become the mainstream technology for the renovation of underground water supply and drainage pipe network. Winding method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/1645B05D5/00B05D7/22B05D7/24
CPCB05D5/005B05D7/225B05D7/24F16L55/1645
Inventor 郑洪标刘志国吴凡华李劲松王军
Owner WUHAN EASY SIGHT TECH