Nuclear process pipeline leakage rate detection device function verification test loop system

Abstract

The invention aims to disclose a nuclear process pipeline leakage rate detection device function verification test loop system, which comprises a loop unit for providing a fluid medium in a high-energy pipe and a simulation pipeline unit for simulating the state of a leakage pipeline. Compared with the prior art, pipeline leakage positions in different directions can be easily and freely switched,so that the effective detection capability of the detection device relative to different positions of pipeline leakage defects can be verified; the real pipeline size, material and pipe wall temperature of the leakage pipeline can also be simulated, particularly, a loop device for simulating the size, material and the like of a nuclear power plant main steam pipe does not have public informationyet, thus better reflecting the flowing condition of the leakage fluid relative to the pipeline, the adsorption effect of the pipe surface on the leakage fluid and heat exchange, realizing comprehensive and sufficient verification of the leakage detection device outside a pipeline pressure boundary, guaranteeing the reliability and effectiveness, and achieving the purpose of the invention.

Description

technical field [0001] The invention relates to a test loop system of a pipeline leakage rate detection device, in particular to a function verification test loop system of a nuclear process pipeline leakage rate detection device. Background technique [0002] The application of LBB technology to high-energy pipelines in nuclear power plants first needs to be able to identify the possible leakage cracks of the pipelines to be used, and demonstrate that the leakage cracks can still be stable when the maximum working condition occurs, that is, no double-end fracture occurs. Therefore, using pipeline leakage detection devices to identify leakage cracks and judge the size of cracks is one of the methods to support the application of LBB technology, especially for the leakage detection of main steam pipelines. Therefore, it is very necessary to carry out experiments to verify whether the pipeline leakage detection device to be adopted is feasible and effective, which is the basis...

AI Technical Summary

Problems solved by technology

[0005] There are some defects in the verification test of the general high-energy pipeline leakage crack direct detection device using LBB technology: (1) It is difficult to verify the different positions of the detection device relative to the pipeline leakage defect, or only realize the detection verification of one or a small number of leakage defects , but failed to achieve sufficient detection capability verification of multi-dimensional defects along the axial and circumferential directions

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