A functional verification test loop system of a nuclear process pipeline leak rate detection device

Abstract

The purpose of the present invention is to disclose a functional verification test loop system of a nuclear process pipeline leakage rate detection device, including a loop unit for providing fluid medium inside a high-energy tube and a simulated pipeline unit for simulating the state of the leaking pipeline. Compared with the prior art, it can be easily Freely switch the pipeline leakage positions in different directions, so as to verify the effective detection capability of the detection device relative to different positions of pipeline leakage defects; it can also simulate the real pipeline size, material and pipe wall temperature of the leaking pipeline, especially the size of the main steam pipe of the nuclear power plant. There is no public information on the circuit device with materials, etc., so that the flow of the leaking fluid relative to the pipeline, the adsorption and heat exchange of the leaking fluid on the surface of the pipe, and the leakage detection device outside the pressure boundary of the pipeline can be realized. , sufficient verification, to ensure its reliability and validity, to achieve the purpose of the present invention.

Description

technical field [0001] The invention relates to a test loop system of a pipeline leakage rate detection device, in particular to a functional 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 leakage cracks that may appear in the pipelines to be applied, and demonstrate that the leakage cracks can still be stable when the maximum working condition occurs, that is, no double-ended fracture occurs. Therefore, the use of pipeline leakage detection devices to identify leakage cracks and determine 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 tests to verify whether the pipeline leakage detection device to be used is feasible and effective, and ...

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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