Auxiliary cooling system for reaction core of passive reactor

An auxiliary cooling system and reactor technology, which is applied in the directions of reactors, cooling devices, nuclear power generation, etc., can solve the problems of low flow rate of passive cooling water and low boundary heat flux density on the wall of the reactor melt retention device, so as to improve safety and improve Critical heat flux to ensure effective results

Active Publication Date: 2018-03-27
CHINA NUCLEAR POWER ENG CO LTD
View PDF14 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above scheme, the flow rate of the passive cooling water is small, and the heat flux density at the boundary of the wall of the reactor melt retention device is low

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
  • Auxiliary cooling system for reaction core of passive reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] The composition of exemplary passive reactor core auxiliary cooling system of the present invention is as follows: figure 1 As shown, it includes a pressure vessel 1, an insulation layer 2, an annular space 3, a pressurizer 4, an automatic pressure relief system 5 (connected to the pressure vessel 1 through the pressurizer 4 through the pipeline), the main steam pipeline 6 of the steam generator, Pressure relief tank 7, built-in refueling water tank 8, feed water pump 9, steam turbine 10, steam generator branch steam pipeline 11, automatic pressure relief system branch pipeline 12, steam injection pipeline 13, exhaust pipeline 14, water supply pipeline 15, Drain pipeline 16 , first valve 17 , second valve 18 , third valve 19 , check valve 20 , fifth valve 22 , sixth valve 23 , fourth valve 21 , valve opening trigger switch ...

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 belongs to the technical field of nuclear safety control and relates to an auxiliary cooling system for a reaction core of a passive reactor. The auxiliary cooling system for the reaction core of the passive reactor comprises a pressure container, a heat insulation layer, an annular space, a built-in material changing water tank, a water feeding pump, a steam turbine, a water feedingpipeline and a water discharging pipeline, wherein the sealed annular space is formed between an outer wall of the pressure container and the heat insulation layer at the periphery of the pressure container; the built-in material changing water tank is used for supplying water to the water feeding pump through the water feeding pipeline; the water feeding pump is driven by the steam turbine to inject cooling water into the annular space through the water discharging pipeline. By adopting the auxiliary cooling system for the reaction core of the passive reactor, provided by the invention, theimmersion of a reactor cavity of the reactor can be accelerated through a passive means and the critical heat flux density of an in-reactor melt retention device is improved, so that a phenomenon thata wall surface of the pressure container has a boiling crisis is avoided and an IVR system is effective.

Description

technical field [0001] The invention belongs to the technical field of nuclear safety control, and relates to an auxiliary cooling system for a passive reactor core. Background technique [0002] After the serious nuclear accidents at the Three Mile Island and Chernobyl nuclear power plants, the nuclear power industry began to focus on research and research on the prevention and mitigation of severe nuclear accidents. and improve human factors engineering requirements. In order to avoid the large-scale release of radioactive substances caused by the reactor core, related designs of core traps have gradually emerged. Under the background that the independent design of my country's third-generation nuclear power system has achieved phased results, nuclear power plants such as ACP1000, CAP1400, and ACPR1000 Plants have adopted the in-core melt retention device (IVR). [0003] There are many technical solutions disclosed about the core catcher, such as US4442065 (Retrofittable ...

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): G21C15/18
CPCG21C15/18G21C15/182Y02E30/30
Inventor 元一单于明锐马卫民朱晨张丽刘卓邹文重李炜
Owner CHINA NUCLEAR POWER ENG CO LTD
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