Leakage location monitoring system for annular sealing surface of nuclear reactor pressure vessel

Abstract

The invention discloses a leakage location monitoring system for the annular sealing surface of a nuclear reactor pressure vessel. The system includes: a signal acquisition unit for collecting acoustic emission signals collected on the annular sealing surface of the nuclear reactor pressure vessel, and transmitting the collected signal to a conditioning unit The conditioning unit is used to perform electrical isolation, program-controlled amplification, and band-pass filter processing on the signal received from the signal acquisition unit, and transmits the processed signal to the processing unit; the processing unit is used to transmit the signal based on the conditioning unit, Obtain the effective value of the acoustic emission signal of the annular sealing surface of the nuclear reactor pressure vessel, judge whether there is leakage on the annular sealing surface of the nuclear reactor pressure vessel through the effective value of the acoustic emission signal, and solve the technology that the existing technology cannot effectively monitor the annular sealing surface of the nuclear reactor pressure vessel To solve the problem, the effective real-time monitoring of the leakage of the annular sealing surface of the nuclear reactor pressure vessel is realized.

Description

Technical field[0001]The present invention relates to the field of leakage monitoring of nuclear reactors, in particular to nuclear reactor pressure vessel annular sealing surface leakage positioning monitoring system.Background technique[0002]There are many leaks monitoring methods of nuclear reactors, such as the monitoring, temperature and humidity monitoring, radiation dose monitoring, etc., although leak monitoring sensitivity is still, the accuracy of leakage monitoring and leak position monitoring is not high. The leak monitoring method based on sound emission generates stress wave when the pipeline leaks, the size of the sound wave value is proportional to the position of the detector distance and the amount of leakage, so the accuracy of its leakage positioning is high, it is one Various methods of monitoring the nuclear reactor leakage.[0003]However, the existing acoustic emission leak monitoring method applied to the nuclear reactor can only leak monitoring in a pipeline,...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a leakage location monitoring system for the annular sealing surface of the nuclear reactor pressure vessel, which solves the technical problem that the prior art cannot effectively monitor the annular sealing surface of the nuclear reactor pressure vessel, and realizes the effective detection of the leakage of the annular sealing surface of the nuclear reactor pressure vessel real-time monitoring

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