CONTROL ROD OPERATION MONITORING SYSTEM AND CONTROL ROD OPERATION MONITORING METHOD

Title:

CONTROL ROD OPERATION MONITORING SYSTEM AND CONTROL ROD OPERATION MONITORING METHOD

Document Type and Number:

WIPO Patent Application WO/2018/131106

Kind Code:

A1

Abstract:

Provided are a control rod operation monitoring method and a control rod operation monitoring system for monitoring, at all times, the insertion of control rods in an entire reactor core while a nuclear reactor is in operation, and for issuing a signal to countermeasure equipment that activates automatically and a warning prompting an operation by an operator if an abnormality occurs. LPRM detectors in each LPRM assembly in the entire reactor core are divided into four channels on a height basis, and indication values are averaged at all times. If, by comparing the average value and a setting value, there is an abnormality, a signal is issued to countermeasure equipment, for example.

Inventors:

TAKEO SATOSHI (JP)
KONOMA AKIRA (JP)
TSUCHIYA AKIYUKI (JP)
MATSUMOTO KOJI (JP)
KONDOU TAKAO (JP)
HONMA YUJI (JP)

Application Number:

PCT/JP2017/000758

Publication Date:

July 19, 2018

Filing Date:

January 12, 2017

Export Citation:

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Assignee:

HITACHI GE NUCLEAR ENERGY LTD (JP)

International Classes:

G21C17/10; G21C7/08; G21C17/00; G21C17/108

Foreign References:

JPH0447291A	1992-02-17
JPS62228980A	1987-10-07
JP2005061951A	2005-03-10
JPH11337678A	1999-12-10
JPH01253695A	1989-10-09
JP2012163438A	2012-08-30

Other References: