Nuclear power plant protection system-based safety accident protection method

A technology for protection systems and safety accidents, applied in power plant safety devices, nuclear power plants, nuclear power plant control, etc., can solve problems such as voltage regulator full of water, accident deterioration, etc., and achieve the effect of improving safety and economy

Active Publication Date: 2019-12-24
NUCLEAR POWER INSTITUTE OF CHINA
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, if the system-level safety instructions cannot be reset in time, the safety injection is still injected into the primary cir

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 protection system-based safety accident protection method
  • Nuclear power plant protection system-based safety accident protection method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] In order to be able to understand the above objectives, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other if they do not conflict with each other.

[0019] In the following description, many specific details are explained in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from the scope described here. Therefore, the protection scope of the present invention is not disclosed below. Limitations of specific embodiments.

[0020] Please refer to figure 2 , The technical problem to be solved by the present invention is how to realize the synchronous triggering of the automatic and manual injection functions. On the pre...

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 safety accident protection method based on a nuclear power plant protection system. The reactor protection system generates two paths of automatic safety injection instruction signals at the same time, wherein the first path of automatic safety injection instruction signal is sent to an RS trigger of safety level software, and meanwhile the second path of automatic safetyinjection instruction signal is transmitted to an RS trigger of an ECP relay circuit; after the first path of automatic safety injection instruction signal is sent to an RS trigger of safety level software, the RS trigger of the safety level software is triggered to automatically carry out safety injection, preset delay is triggered to allow reset timing; and after the preset delay is finished, an operator is allowed to stop safety injection; and the second path of automatic safety injection instruction signal is transmitted to an RS trigger of the ECP relay circuit and then is subjected to logic OR processing with a manual safety injection instruction based on a relay, then safety injection is carried out after the RS trigger of the ECP relay circuit is triggered, and preset time delay is triggered to allow reset timing; finally, an operator is allowed to stop safety injection after the preset time delay is ended. The safety and economy of the nuclear power plant are improved.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant reactor instrumentation and control, in particular to a design method for related signals and functions of a reactor protection system. Background technique [0002] The main control room of the nuclear power plant is designed with an emergency control panel (ECP). The system-level protection function triggered by it bypasses the safety-level software through a hard logic circuit built on the basis of relays, so as to ensure that the superimposed automatic protection function fails or fails in emergency conditions. When triggered, operators can still bring the reactor into a safe state, preventing the release of radioactive material to the environment. [0003] Such as figure 1 As shown, when an accident occurs in a nuclear power plant, according to the accident regulations of the power plant, after the automatic safety injection of the reactor protection system is triggered, the oper...

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): G21D3/00G21D3/06
CPCG21D3/001G21D3/06Y02E30/00
Inventor 罗炜刘宏春朱攀李谢晋冯威许东芳周继翔李文平俞赟陈鹏贺理王琳
Owner NUCLEAR POWER INSTITUTE OF CHINA
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