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Leakage detection method for special electronic gas transmission pipeline

A technology of electronic gas and pipeline, which is applied in the field of machinery, can solve the problems such as the inability to transport special electronic gas, and achieve high practical value, simple leak detection, and high leak detection accuracy

Inactive Publication Date: 2019-03-08
浙江英德赛半导体材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If there are bubbles, it means that the pipe has air holes and cannot be used to transport special electronic gases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The leak detection method of the special electronic gas delivery pipeline comprises the following steps:

[0035] A. Pipeline plugging: erect the pipe, and close the lower end of the pipe by blocking;

[0036] B. Coating the covering layer: apply the viscous coating medium evenly on the outside of the pipe, and form a covering layer on the outside of the pipe evenly covering the outside of the pipe;

[0037] C. Inject leak detection liquid: inject the liquid leak detection liquid into the pipe from the upper end of the pipe;

[0038] D. Visual inspection of the covering layer: After the covering layer is naturally solidified, a shell matching the outside of the pipe is formed. Visually check whether there are obvious air holes on the shell.

[0039] In the step A, a rubber plug is used to close the lower end of the pipeline.

[0040] The thickness of the covering layer in the step B is 1 cm.

[0041] Coating medium in the described step B is the thick thing that the ...

Embodiment 2

[0051] The leak detection method of the special electronic gas delivery pipeline comprises the following steps:

[0052] A. Pipeline plugging: erect the pipe, and close the lower end of the pipe by blocking;

[0053] B. Coating the covering layer: apply the viscous coating medium evenly on the outside of the pipe, and form a covering layer on the outside of the pipe evenly covering the outside of the pipe;

[0054] C. Inject leak detection liquid: inject the liquid leak detection liquid into the pipe from the upper end of the pipe;

[0055] D. Visual inspection of the covering layer: After the covering layer is naturally solidified, a shell matching the outside of the pipe is formed. Visually check whether there are obvious air holes on the shell.

[0056] In the step A, a rubber plug is used to close the lower end of the pipeline.

[0057] The thickness of the covering layer in the step B is 3 cm.

[0058] Coating medium in the described step B is the thick thing that the ...

Embodiment 3

[0068] The leak detection method of the special electronic gas delivery pipeline comprises the following steps:

[0069] A. Pipeline plugging: erect the pipe, and close the lower end of the pipe by blocking;

[0070] B. Coating the covering layer: apply the viscous coating medium evenly on the outside of the pipe, and form a covering layer on the outside of the pipe evenly covering the outside of the pipe;

[0071] C. Inject leak detection liquid: inject the liquid leak detection liquid into the pipe from the upper end of the pipe;

[0072] D. Visual inspection of the covering layer: After the covering layer is naturally solidified, a shell matching the outside of the pipe is formed. Visually check whether there are obvious air holes on the shell.

[0073] In the step A, a rubber plug is used to close the lower end of the pipeline.

[0074] The thickness of the covering layer in the step B is 2 cm.

[0075] Coating medium in the described step B is the thick thing that the ...

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Abstract

The invention provides a leakage detection method for a special electronic gas transmission pipeline, and belongs to the technical field of machines. The method solves the problem in the prior art that the stability is poor. The leakage detection method for the special electronic gas transmission pipeline comprises the following steps of A, pipeline blocking, wherein the pipeline is erected, and the lower end of the pipeline is blocked; B, coating of a covering layer, wherein the outer side of the pipeline is uniformly coated with a coating medium in a viscous state, the covering layer uniformly covering the outer side of the pipeline is formed on the outer side of the pipeline; C, injection of leakage detection liquid, the leakage detection liquid in the liquid state is injected into thepipeline from the upper end of the pipeline; D, visual measuring for the covering layer, wherein the covering layer is naturally solidified to form a shell matched with the outer side of the pipeline,and whether or not obvious air holes exist on the shell is detected visually. The leakage detection method for the special electronic gas transmission pipeline is high in stability.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a leak detection method for a special electronic gas delivery pipeline. Background technique [0002] In order to improve the delivery stability of special electronic gases, it is usually necessary to carry out leak detection tests on delivery pipelines. [0003] The existing test method is mainly to coat soapy water on the outside of the pipeline, and after the pipeline is connected to the air pump, the air pump delivers gas in the pipe to check whether there are air bubbles outside the pipeline. [0004] Bubbles indicate that the tubing is porous and cannot be used to transport specialty electronic gases. Conversely, no air bubbles indicate a stable pipe seal. Contents of the invention [0005] The purpose of the present invention is to address the above-mentioned problems in the prior art, and provide a leak detection method for special electronic gas delivery pipelines wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/14
CPCG01M3/142
Inventor 鄢芝勇李杰丁高松潘佳伟王龙沈佳跃董夏梦
Owner 浙江英德赛半导体材料股份有限公司
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