MONITORING METHOD AND MONITORING DEVICE FOR CORROSION STATE OF DRUM-TYPE FILTER SCREEN OF NUCLEAR POWER PLANT - SUZHOU NUCLEAR POWER RES INSTITUTE CO LTD

Title:

MONITORING METHOD AND MONITORING DEVICE FOR CORROSION STATE OF DRUM-TYPE FILTER SCREEN OF NUCLEAR POWER PLANT

Document Type and Number:

WIPO Patent Application WO/2023/122940

Kind Code:

A1

Abstract:

Disclosed is a monitoring method for a corrosion state of a drum-type filter screen of a nuclear power plant. The method comprises the following steps: electrically connecting the positive electrode of a monitoring module to the drum-type filter screen, and electrically connecting the negative electrode of the monitoring module to a potential sensor; controlling the potential sensor to move to measurement points at different positions, so as to measure the potentials between the drum-type filter screen and the measurement points at different positions; and/or, controlling the position of the measurement point of the potential sensor to be fixed, so as to measure the potentials between different positions of the drum-type filter screen and the measurement point; and according to the measured potentials, determining the corrosion state of the drum-type filter screen. According to the monitoring method for a corrosion state of a drum-type filter screen of a nuclear power plant, the issues of safety and detection time of corrosion state detection of the drum-type filter screen of the nuclear power plant can be solved, and the detection and evaluation efficiency is improved, and meanwhile, accurate monitoring and evaluation of areas are carried out, and on-site detection and evaluation can be quickly, efficiently and safely completed.

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Inventors:

LIN ZEQUAN (CN)
SHEN XINSHENG (CN)
FU GUOQING (CN)
ZHANG LEI (CN)
PENG QUNJIA (CN)

Application Number:

PCT/CN2021/141998

Publication Date:

July 06, 2023

Filing Date:

December 28, 2021

Export Citation:

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Assignee:

SUZHOU NUCLEAR POWER RES INSTITUTE CO LTD (CN)
CHINA GENERAL NUCLEAR POWER GROUP (CN)
CGN POWER CO LTD (CN)

International Classes:

G01N17/02; G08C17/02; H02J7/00; H02J50/10

Foreign References:

CN109357996A	2019-02-19
CN111929229A	2020-11-13
CN104914032A	2015-09-16

Attorney, Agent or Firm:

SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)

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