Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fault diagnosis method for nuclear power high-voltage heater

A high-pressure heater and fault diagnosis technology, which is applied in the direction of instrumentation, machine/structural component testing, measuring devices, etc., can solve the problem of few successful applications, achieve the effects of improving economy, accurate diagnosis results, and improving work efficiency

Active Publication Date: 2017-03-22
SHANGHAI UNIVERSITY OF ELECTRIC POWER
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, relatively few fault diagnosis systems for high-pressure heaters have been successfully applied in the field

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
  • Fault diagnosis method for nuclear power high-voltage heater
  • Fault diagnosis method for nuclear power high-voltage heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0077] Such as figure 1 As shown, a nuclear power high-pressure heater fault diagnosis method includes the following steps:

[0078] 1) High pressure heater fault diagnosis status activated: set the high pressure heater economic index limit range of the activated fault diagnosis state. When the real-time detected high pressure heater economic index is within the economic index limit range, the fault diagnosis will be activated. Perform step 2);

[0079] 2) Perform fault diagnosis according to the set fault diagnosis knowledge confidence rule library according to the priority of the fault: the nine types of faults diagnosed according to the priority are: leakage in the inlet piping system, leakage in the outlet piping system, open drain valve, and drain valve failure Close, steam extraction valve jam, short circuit of inlet and outlet water chamber, blockage of water supply tube bundle, fouling of heat transfer tube and accumulation of air on steam side affect heat transfer. First, ...

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 relates to a fault diagnosis method for a nuclear power high-voltage heater, and the method comprises the steps: building a one-to-one mapping relation between fault types and fault symptoms based on a fault model on the condition of full demonstration of various types of faults of a high-voltage heater, and obtaining a fault diagnosis knowledge confidence rule base; activating a fault diagnosis state of the high-voltage heater according to the diagnosis requirements of nuclear power after the economical performance index limit value of the high-voltage heater arrives, enabling a diagnosis system to carry out the fault diagnosis of the high-voltage heater according to the priority of faults and the set fault diagnosis knowledge confidence rule base, and finally obtaining the diagnosis information of fault types. The method can achieve the diagnosis of a real-time fault of the high-voltage heater, shortens the maintenance time, and improves the economical performance of the high-voltage heater.

Description

Technical field [0001] The invention relates to a fault diagnosis method for conventional island equipment, in particular to a fault diagnosis method for a nuclear power high-pressure heater. Background technique [0002] The main function of the conventional island is to convert the thermal energy of the steam produced by the nuclear island into the mechanical energy of a steam turbine, and then into electrical energy through a generator. Due to the strong coupling between the equipment of the conventional island and the complicated and changeable operating conditions of the system, there is widespread confusion in the fault diagnosis that the fault knowledge base is difficult to establish and perfect, which seriously restricts the progress of its fault diagnosis technology and the practical application of the diagnosis system effect. The failure of the high-pressure heater accounts for a large proportion of the failures of the conventional island, which has a great impact on t...

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 Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 钱虹张栋良王渡郑秒林斯韵
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com