Nuclear power plant reactor neutron flux detection system

Abstract

The present invention belongs to the field of nuclear power plant safety management and control, and discloses a nuclear power plant nuclear reactor neutron flux detection system, which comprises a reactor core room shielding door, a selected trolley arranged inside a trolley selection room, a sliding rail arranged below the selected trolley, an installation plate embedded on the floor on the outer side of the shielding door, a first lock capable of locking the shielding door onto the installation plate, a position limiting rail arranged parallel to the sliding rail, an installation frame with a top portion connected to the selected trolley and a bottom portion opposite to the position limiting rail, a second lock capable of locking the installation frame onto the position limiting rail, and a first key for opening or locking the first lock and the second lock. According to the present invention, through the physical management and control way, the movement of the selected trolley and the opening of the reactor pit room shielding door can not be performed at the same time, the condition that the active section of the finger bushing is drawn out is prevented, the condition that people mistakenly enters the reactor pit room when the active section of the finger bushing is exposed in the reactor pit room is prevented, and the safe hazard that the personal enters the reactor core room is eliminated.

Description

technical field [0001] The invention belongs to the field of nuclear power plant core management and control, in particular to a nuclear power plant reactor neutron flux detection system. Background technique [0002] The nuclear power plant core neutron flux system is part of the core measurement system, which is mainly used to measure the neutron flux distribution in the core. Specifically, the core neutron flux system achieves point-by-point measurement over the entire height of the core by inserting a finger-tube into the core neutron measurement channel and moving the detector in the finger-tube. [0003] The finger sleeve is inserted into the core neutron measurement channel of the fuel assembly under normal operating conditions; Insert it back into the fuel assembly. The bottom of the reactor vessel is located in the pit room, which means that one end of the bushing is inserted from the pit room into the core neutron measurement channel of the fuel assembly in the r...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a nuclear power plant reactor neutron flux detection system, which aims to solve the problem of relatively large safety problems in specific applications when using artificial administrative means to control personnel entering the pit room. Hidden technical issues

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