System for monitoring loosening part of nuclear reactor and coolant system

A technology for a nuclear power plant reactor and a coolant system, which is applied in the field of nuclear power plant reactor monitoring systems, can solve the problems of the time difference analysis system error of a loose component event signal, the system has poor anti-false alarm capability, and false alarm, so as to improve the anti-false alarm capability. , The effect of reducing the probability of false alarms and facilitating the replacement of parts
CN101685679AActive Publication Date: 2010-03-31NUCLEAR POWER INSTITUTE OF CHINA
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
NUCLEAR POWER INSTITUTE OF CHINA
Publication Date
2010-03-31

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Abstract

The invention provides a system for monitoring loosening parts of a nuclear reactor and a coolant system, solving the problems of reliability, compatibility, stability and maintenance convenience andcomprising an accelerometer, a charge amplifier, signal conditioning equipment, loosening part detection equipment, alarm processing equipment, sound monitor equipment, data collection equipment, a display, loosening part monitor software and the like. The system adopts a PXI bus technology so as to enable every two modules to be synchronized; a signal conditioning module adopts an FPGA programmable technology; a DSP digital technology is adopted to discriminate a loosening part event; loosening part signal length effective value floating discrimination, time delay, channel recheck combination discrimination, alarm prohibition caused by alarm channel recheck, control rod motion or coolant low pressure, and the like ensure that the system has a strong wrong alarming resistance capacity; the data collection equipment collects data to replace tape records so as to ensure the integrity of event signal records; and event signal waveform display and data storage can carry out display back and secondary analysis on signals.
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Description

technical field

[0001] The invention relates to a nuclear power plant reactor monitoring system, in particular to a nuclear power plant reactor and coolant system loose parts monitoring system. Background technique

[0002] International standards (such as IEC 60988-1990, ASME OM-S-G-2000 (Part 12)) and national standards (GB 11807) stipulate that for reactor vessels and coolant systems in nuclear power plants, loose parts monitoring is required.

[0003] There is no report on the development of nuclear power plant reactor and coolant system loose parts monitoring system and related patented technologies by other domestic units. The loose parts monitoring systems equipped in active nuclear power plants are all imported from abroad. The second phase of nuclear power, Daya Bay and Ling Ao nuclear power are 01dB-Stell in France, and Tianwan nuclear power is in Russia.

[0004] The KIR loose parts monitoring system of the French 01dB-Stell company represents the current level o...

Claims

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