Reactor core molten debris grouping retention and cooling system

A core melt and cooling system technology, which is applied to cooling devices, reactors, nuclear power generation, etc., can solve the problems of grouping and cooling of core melt that are not considered, and improve the decay heat export power of the melt, The effect of radiation dose reduction and avoidance of failure

Active Publication Date: 2016-04-20
CHINA NUCLEAR POWER ENG CO LTD
View PDF30 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] None of the above patents related to the core catcher considers t

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
  • Reactor core molten debris grouping retention and cooling system
  • Reactor core molten debris grouping retention and cooling system
  • Reactor core molten debris grouping retention and cooling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 1 Shown is a core melt group retention and cooling system provided by the present invention, including a group retention system and a cooling system. The group retention system includes a molten material retention container loading well 09 arranged at the bottom of the reactor cavity 02 and a plurality of molten material retention containers 07 arranged in the molten material retention container loading well 09 . A plurality of melt retention containers 07 are connected to the reactor cavity 02 through multi-stage melt transport channels, and a melt retention container transfer device 08 is pierced on the melt retention container loading well 09, and the melt retention container transfer device 08 connected to the cooling system. The cooling system includes a melt cooling water pool and a cooling ...

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 reactor core molten debris grouping retention and cooling system which comprises a grouping retention system and a cooling system. The grouping retention system comprises a molten debris retention vessel loading shaft arranged at the bottom of a reactor cavity and multiple molten debris retention vessels arranged in the molten debris retention vessel loading shaft, the molten debris retention vessels are connected with the reactor cavity through multistage molten debris transport channels, molten debris retention vessel transfer devices are arranged on the molten debris retention vessel loading shaft in a penetrating mode, and the molten debris retention vessel transfer devices are connected with the cooling system; the cooling system comprises a molten debris cooling water tank and a cooling circuit of the molten debris cooling water tank. The reactor core molten debris grouping retention and cooling system aims at achieving grouping retention and cooling on reactor core molten debris by means of an independent packaging container on the working condition that serious accidents occur; improvement of molten debris decay heat exporting power is facilitated, and an irradiation dose to a worker is reduced; the structure is compact, and the occupied space is small.

Description

technical field [0001] The invention belongs to an external collection system for reactor core molten matter, in particular to a group retention and cooling system for reactor core molten matter. Background technique [0002] After the serious 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 accidents. Due to engineering and other requirements. When a serious accident occurs in a pressurized water reactor nuclear power plant, the loss of core waste heat removal means will evaporate and exhaust the coolant, the core will be exposed and continue to heat up, the fuel elements will melt due to the loss of cooling, and the core melt will fall into the pressure vessel ( RPV) lower chamber, which in turn causes the failure of the lower head of the pressure vessel. If effective measures cannot be taken to cool it, the core melt may melt through the pre...

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): G21C9/016G21C15/18
CPCG21C9/016G21C15/182Y02E30/30
Inventor 韩旭马卫民元一单师鹏马一郭强朱晨张丽
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