Large-diameter pipeline sealing property detection device and method

Abstract

The invention discloses a large-diameter pipeline sealing property detection device which comprises a tubular body, two annular airbags, an air pump, a booster pump and a plurality of fan-shaped baffles, wherein the two annular airbags respectively surround the two ends of the tubular body, and when inflated, the two annular airbags are in contact with the inner wall of a pipeline to be detected and form a closed cavity together with the outer wall of the tubular body and the inner wall of the pipeline to be detected; the air pump is used for inflating the annular airbags through air holes formed in the annular airbags; the booster pump is used for filling and pressurizing the closed cavity with water through a first through hole formed in the tubular body; and the fan-shaped baffles are respectively arranged on the two end surfaces of the tubular body, and can prevent the annular gasbags from being disengaged from the tubular body after the closed cavity is pressurized by filling water. The invention also discloses a method for detecting the sealing property of the large-diameter pipeline by using the large-diameter pipeline sealing property detection device. By using the device and the method, the detection of the sealing property of the pipeline under high water pressure can be realized, and the device and the method are applicable to the detection of the sealing property of various large-diameter pipelines.

Description

technical field [0001] The invention relates to a pipeline sealing performance detection technology, in particular to a large-diameter pipeline sealing performance detection device and method. Background technique [0002] In the existing civil engineering technology, large-diameter pipeline projects often have technical requirements for pipeline sealing performance. Water pressure test to check its sealing performance. [0003] However, in the prior art, when detecting the sealing performance of large-diameter pipelines (for example, pipelines with an inner diameter greater than 1.5 meters), there are various difficulties, so there is no ideal one for the time being in the prior art. Detection method. For example, in the relevant acceptance regulations of pipeline engineering, it is often used to build sealing walls at both ends of the pipeline to be tested, and then fill the sealed pipeline to be tested with water and pressurize to test the sealing performance of the pip...

AI Technical Summary

Problems solved by technology

[0005] In summary, due to the above-mentioned various problems in the above-mentioned detection methods, it is difficult for various large-diameter pipeline sealing performance detection methods in the prior art to realize the sealing performance detection under high water pressure, and the scope of application is narrow, so It is difficult to be widely used in the sealing performance detection of various large-diameter pipelines

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