Unlock instant, AI-driven research and patent intelligence for your innovation.

Post-accident nuclear neutron flux monitoring method, device and readable storage medium

An extra-core and neutron technology, applied in the fields of nuclear reactor monitoring, reactors, nuclear engineering, etc., can solve problems such as fault diagnosis

Active Publication Date: 2020-11-06
中广核工程有限公司 +3
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a post-accident nuclear neutron flux monitoring method, device and readable storage medium

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Post-accident nuclear neutron flux monitoring method, device and readable storage medium
  • Post-accident nuclear neutron flux monitoring method, device and readable storage medium
  • Post-accident nuclear neutron flux monitoring method, device and readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] refer to image 3 , is a flow chart of the post-accident nuclear neutron flux monitoring method in Embodiment 1 of the present invention. The post-accident nuclear neutron flux monitoring method in this embodiment includes:

[0056] S301. Monitor the parameter values ​​of all scene parameters of each pre-selected post-accident physical phenomenon;

[0057] The pre-selected post-accident physical phenomena, which refer to figure 2 The post-accident physical phenomena that need to be considered when correcting the current In.

[0058] Generally, nuclear power plants monitor the nuclear neutron flux outside the reactor after the accident when the main pump is out of service. The physical phenomena pre-selected in this embodiment include: (1) control rod stuck; (2) reactor pool filled with water; (3) The core is exposed; (4) The liquid level of the descending ring cavity is reduced. Wherein, the descending annulus refers to the annular area between the inner wall of th...

Embodiment 2

[0101] refer to Figure 11 , the post-accident nuclear neutron flux monitoring device in this embodiment includes:

[0102] The parameter value monitoring module 1101 is used to monitor the parameter values ​​of all scene parameters of each pre-selected post-accident physical phenomenon;

[0103] The impact factor determination module 1102 is used to determine the current corresponding to each physical phenomenon based on the parameter values ​​of all scene parameters of each physical phenomenon and the function of the predetermined influence factor of each physical phenomenon on the neutron flux. impact factor;

[0104] The current correction module 1103 is used to use the pre-selected influence factors corresponding to each physical phenomenon, and simultaneously correct the current generated in the detector measurement circuit;

[0105] The nuclear power acquisition module 1104 is configured to convert the corrected current into current and sum power to obtain core nuclea...

Embodiment 3

[0116] This embodiment discloses a post-accident nuclear neutron flux monitoring system, which is characterized in that it includes a processor and a memory, the memory stores a computer program, and the computer program can be run by the processor to realize The steps of the method described in Example 1. For a specific implementation process, reference may be made to the descriptions of the foregoing method embodiments, and details are not repeated here.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an out-of-pile nuclear neutron flux monitoring method after accidents, a device, and a readable storage medium. The out-of-pile nuclear neutron flux monitoring method after accidents comprises following steps: monitoring on all the scene parameter values of each pre-selected physical phenomenon after accidents is carried out; based on all the scene parameter values of eachphysical phenomenon and pre-determined function of each physical phenomenon on neutron flux influence factors, the corresponding influence factors of each current physical phenomenon are determined; the pre-selected corresponding influence factors of each physical phenomenon are adopted, and correction on electric current generated in a detector measuring circuit is carried out at the same time; the corrected electric current is subjected to current and power conversion to obtain reactor core nuclear power. According to the out-of-pile nuclear neutron flux monitoring method, a series of influence factors are introduced, and overall consideration of influences of physical phenomenon after accidents on out-of-pile nuclear neutron flux measuring process is adopted, so that the influences of the physical phenomenon on out-of-pile nuclear neutron flux measuring can be weakened or even eliminated, and correct diagnosis of core reactivity level by operators is ensured.

Description

technical field [0001] The invention relates to the field of nuclear power, in particular to a post-accident nuclear neutron flux monitoring method, device and readable storage medium. Background technique [0002] PWR nuclear power plants are generally equipped with an external nuclear neutron flux measurement device (or called: external nuclear neutron flux measurement channel), which is used to continuously measure the nuclear neutron flux level of the reactor core and monitor in real time The change of core reactivity and the change trend of core nuclear power. Reactivity is a physical quantity reflecting the physical state of a nuclear reactor, which characterizes the degree to which the reactor deviates from the critical state. Criticality means that the new neutrons produced by nuclear fission reactions in the core can just maintain A continuous fission reaction in a reactor. The detectors of the external nuclear neutron flux measurement device generally use measurin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G21C17/108
CPCG21C17/108Y02E30/30
Inventor 王振营黄宇于枫婉潘梓毅焦振营刘琉
Owner 中广核工程有限公司