Valve electric actuator opening torque protection correction method and system

An electric actuator and actuator technology, applied to engine components, valve details, valve devices, etc., can solve the problem that the opening moment protection mechanism action valve cannot be opened, and achieve the effect of improving opening performance, widely popularizing value, and reducing damage

Active Publication Date: 2019-04-26
YANGJIANG NUCLEAR POWER +2
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On November 19, 2015, during the commissioning of unit 3, the action valve of the Y3RRI170VN electric actuator opening torque protection mechanism could not be opened

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
  • Valve electric actuator opening torque protection correction method and system
  • Valve electric actuator opening torque protection correction method and system
  • Valve electric actuator opening torque protection correction method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048]During the daily power operation of Yangjiang Nuclear Power Plant, the electric actuator of the nuclear island Yangxiu failed to open the valve many times. The inspection found that the torque protection of the electric actuator was triggered. The open torque protection of the electric actuator is triggered due to excessive static friction. In order to open the valve normally, the valve opening friction problem at the moment of valve opening must be considered. According to feedback, even after the valve core is completely disengaged at the moment of development, the opening torque protection may still be triggered, indicating that there is a great difference in the valve opening friction force. Certainty.

[0049] The problem to be solved by the present invention is: the valve of Yangxiu electric actuator cannot be opened normally, after adding the bypass, the valve can be opened normally, but the upstream and downstream control and protection equipment of the entire co...

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 provides a valve electric actuating mechanism opening torque protection correction method and system. The method includes the steps that valve opening bypasses are added to the two ends of a valve electric actuating mechanism protection action device; according to parameters of a valve electric actuating mechanism, the proportion relation of corresponding numbers of turns between an adjusting shaft of a bypass switch action device and a valve output shaft is determined; according to the proportion relation and whole-course valve opening time of the valve electric actuating mechanism, a time relational expression of the valve opening bypasses is determined; according to the time relational expression of the valve opening bypasses and the parameters of the valve electric actuating mechanism, a bypass time value is determined, wherein the system comprises devices A, B, C, D, E and F. By means of the method and system, the circuit equipment protection problem caused by opening bypasses is solved, debugging efficiency of the electric actuating mechanism is improved, opening performance of a valve is improved, damage of the opening bypasses to upstream and downstream protection equipment is reduced, and popularization value is high.

Description

technical field [0001] The invention relates to the technical field of valve electric actuator protection, more specifically, to a valve electric actuator opening torque protection correction method and system. Background technique [0002] During the daily power operation of Yangjiang Nuclear Power Plant, the electric actuator of the nuclear island Yangxiu failed to open the valve many times. The inspection found that the torque protection of the electric actuator was triggered. The open torque protection of the electric actuator is triggered due to excessive static friction. [0003] After Yangjiang No. 3 unit was commissioned and put into commercial operation, Yang Xiu’s feedback on the torque triggering of the electric actuator was as follows: [0004] On November 19, 2015, during the commissioning of unit 3, the action valve of the Y3RRI170VN electric actuator opening torque protection mechanism could not be opened. [0005] On April 09, 2016, during the daily operati...

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): F16K31/04F16K31/06
CPCF16K31/046F16K31/06
Inventor 丁玉周兴启窦志鹏李运祥邢维利尤万鑫
Owner YANGJIANG NUCLEAR POWER
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