Nuclear power plant safety function analysis tree development method

A security function and analysis tree technology, applied in the direction of instruments, data processing applications, information technology support systems, etc., can solve problems such as decommissioning, downgrading of defense in depth, loss of key security functions, etc.

Pending Publication Date: 2020-11-17
CNNC NUCLEAR POWER OPERATION MANAGEMENT +1
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the overhaul period, with the change of the operation mode, the shutdown of the system, th...

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
  • Nuclear power plant safety function analysis tree development method
  • Nuclear power plant safety function analysis tree development method
  • Nuclear power plant safety function analysis tree development method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with specific embodiments.

[0025] The safety function analysis tree is a graphical model that can show the combination of various factors that affect the defense-in-depth level of the safety function, evaluate the risk level of each combination, and visually present the operating conditions and systems of the power plant such as temperature, pressure, and water level The impact of device availability on safety features. Through the following steps, a safety function analysis tree can be efficiently developed.

[0026] (1) Instruments that monitor critical safety functions

[0027] (2) Identify the system corresponding to the key safety function

[0028] (3) Identify high-risk incentives

[0029] (4) List the headers of the security function analysis tree

[0030] (5) Determine the title description

[0031] (6) Determine the system score

[0032] (7) Determine the risk threshold

[0...

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 a nuclear power plant safety function analysis tree development method. The method comprises the following steps of 1, monitoring an instrument of a key safety function; step 2, identifying a system corresponding to the key security function; 3, identifying a high-risk inducement; 4, listing the title of the safety function analysis tree; 5, determining question header description; step 6, determining a system score; 7, determining a risk threshold; and 8, drawing a safety function analysis tree. The nuclear power plant safety function analysis tree development method provided by the invention has the beneficial effect that the risk of overhaul activities of the power plant can be evaluated. By fully utilizing the results of probability safety evaluation, fault treeanalysis, thermal hydraulic analysis and the like, the overhaul nuclear safety risk evaluation result is closer to the actual situation of the power plant.

Description

technical field [0001] The invention belongs to the field of nuclear safety risk management of nuclear power plant overhaul, and in particular relates to a method for developing a safety function analysis tree of a nuclear power plant. Background technique [0002] Due to a large amount of work to be performed during the outage of the nuclear power plant, the system equipment will be shut down in a centralized manner. The unreasonable work arrangement, personnel operation errors, and random failure of the system equipment may affect the nuclear safety during the outage period. Therefore, the nuclear power plant overhaul requires Managed properly to ensure that nuclear safety is maintained. During the overhaul period, with the change of the operation mode and the shutdown of the system, the level of defense in depth may be degraded, and the risk of loss of key safety functions will increase. [0003] In order to systematically and effectively identify, measure and manage nuc...

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
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06Y04S10/50
Inventor 李乐邹胜佳李跃陈洪浩曹勇吴剑任诚刘东林黄伟兵陈伦寿王珍琪李雪松叶天波陶殷勇张俊林焕
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap