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

A method and device for fitting emergency protection value by measuring the value of a single group of rods

A technology of emergency protection and value, applied in the field of nuclear reactor physical testing, can solve problems such as long time, the measured value of emergency protection value is not necessarily accurate, and the basic theory is still to be discussed, so as to increase the economy, increase the average annual capacity factor, and reduce the overhaul. effect of time

Active Publication Date: 2021-07-30
CHINA NUCLEAR POWER ENG CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, how to calculate the measured value of the emergency protection value based on the measured integral value of each group of control rods, the current calculation method is relatively complicated, which makes the calculation take a lot of time, and the final simulation is obtained after using these calculation methods to calculate The measured value of the emergency protection value is not necessarily accurate, and its basic theory remains to be discussed

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
  • A method and device for fitting emergency protection value by measuring the value of a single group of rods
  • A method and device for fitting emergency protection value by measuring the value of a single group of rods
  • A method and device for fitting emergency protection value by measuring the value of a single group of rods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] The method of fitting the emergency protection value by measuring the value of a single group of rods in this embodiment is mainly applied in the pressurized water reactor nuclear power plant. In this embodiment, it is specifically applied in the WWER reactor type nuclear power plant (such as Tianwan Nuclear Power Plant).

[0083] Such as figure 1 As shown, in this embodiment, the method for calculating the emergency protection value mainly includes the following steps:

[0084] S1, obtain the sum of the calculated values ​​of the integral values ​​of each control rod group in n control rod groups

[0085] Among them, the selection of the number of control rod groups can be set according to the specific conditions of the nuclear power plant to which the method is applied. In this embodiment, n=10 is set, that is, 10 groups of control rods are used.

[0086] Specifically, the calculation program package is used to calculate the calculated value R of the integral valu...

Embodiment 2

[0110] Such as figure 2 As shown, in the present embodiment, the device for fitting the emergency protection value by measuring the value of a single group of rods includes:

[0111] The first acquisition unit is used to acquire the sum of the calculated values ​​of the integral values ​​of each control rod group in the n control rod groups

[0112] The second acquisition unit is used to acquire the calculated value EP of the emergency protection value when there is no stuck stick cal ;

[0113] The third acquisition unit is used to acquire the sum of the actual measured values ​​of the integral values ​​of each control rod group in the n control rod groups

[0114] Calculation unit, used to calculate the simulated test value according to the following formula (7) And take this value as the measured value EP of emergency protection value exp :

[0115]

[0116] In this embodiment, preferably, the first acquisition unit includes a first calculation package module ...

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 method for fitting the emergency protection value by measuring the value of a single group of rods. The calculated value of EP cal ; Obtain the sum of the actual measured values ​​of the integral values ​​of each control rod group in the n control rod groups to calculate the simulated test value as the measured value EP of the emergency protection value according to the formula (7) exp : The present invention also discloses a device for fitting the emergency protection value by measuring the value of a single group of rods. By adopting the method or device, the measured value of the emergency protection value can be quickly simulated according to the measured integral value of the control rod.

Description

technical field [0001] The invention belongs to the technical field of nuclear reactor physical test methods, and in particular relates to a method and a device for fitting the emergency protection value by measuring the value of a single group of rods. Background technique [0002] During the fuel refueling start-up period of nuclear power plants, according to the requirements of the test program, the emergency protection value measurement test is required. [0003] In the emergency protection value measurement test, positive reactivity was first introduced by raising the tenth group of control rods, so that the reactive power was raised to a level close to 1% Nnom (rated power), and the reactor operator manually executed the emergency protection button, except for the stuck rods Except for the control rod bundle, all other control rods fell to the bottom of the core. After recording the data for 1 minute, the stuck rod bundle also fell to the bottom of the core to complete...

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): G06F30/20G06Q50/06
CPCG06Q50/06G06F30/20
Inventor 霍小东徐敏易璇王红霞郭治鹏
Owner CHINA NUCLEAR POWER ENG CO LTD
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