ACOUSTO-OPTIC LEAKAGE MONITORING SYSTEM FOR NUCLEAR POWER PLANT MAIN STEAM PIPELINE - SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD

Title:

ACOUSTO-OPTIC LEAKAGE MONITORING SYSTEM FOR NUCLEAR POWER PLANT MAIN STEAM PIPELINE

Document Type and Number:

WIPO Patent Application WO/2020/052589

Kind Code:

A1

Abstract:

An acousto-optic leakage monitoring system for a nuclear power plant main steam pipeline (1). The system comprises an acoustic emission leakage monitoring loop (10) and an optical spectrum leakage monitoring loop (20), a signal input end of the acoustic emission leakage monitoring loop (10) and a signal input end of the optical spectrum leakage monitoring loop (20) are respectively disposed at probing points (2) of the main steam pipeline (1), a signal output end of the acoustic emission leakage monitoring loop (10) and a signal output end of the optical spectrum leakage monitoring loop (20) are in communication connection with each other by means of a network switch (30), and a control unit (40) and a display unit (50) are sequentially connected to the network switch (30). By combining acoustic emission and spectroscopy, pre-warning is made before the leakage of the main steam pipeline (1), and the diversity and redundancy of the leakage monitoring method of the main steam pipeline (1) are implemented, so that the monitoring result is more credible; and the system is lower in maintenance costs after mounting, is high in monitoring sensitivity, fast in response, significantly improve the response speed after leakage is discovered, and provide large safety allowance.

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Inventors:

NIU TINGTING (CN)
JIANG HAO (CN)
YAN JINQUAN (CN)
LIU CHUNLI (CN)
SHI WEI (CN)
XIA SHUAN (CN)
CAI YOUQIANG (CN)
ZHAN MINMING (CN)
LI FEI (CN)
ZHANG MINGXU (CN)

Application Number:

PCT/CN2019/105366

Publication Date:

March 19, 2020

Filing Date:

September 11, 2019

Export Citation:

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Assignee:

SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD (CN)

International Classes:

G21C17/00; G21C17/017

Foreign References:

CN109087720A	2018-12-25
CN104977298A	2015-10-14
CN103968257A	2014-08-06
CN106287238A	2017-01-04
CN202598147U	2012-12-12
CN103836348A	2014-06-04
CN106104246A	2016-11-09
US20060225507A1	2006-10-12

Other References: