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

Core melt grouping trapping container

A core melt and melt technology, which is applied in the fields of reactors, greenhouse gas reduction, nuclear power generation, etc., can solve problems such as group capture of core melts that are not considered, minimize the release of radioactive substances, and realize automatic sealing. Effect

Active Publication Date: 2016-05-04
CHINA NUCLEAR POWER ENG CO LTD
View PDF31 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] All the above-mentioned patents related to the core catcher do not consider the use of independent containers to capture the core melt in groups

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
  • Core melt grouping trapping container
  • Core melt grouping trapping container
  • Core melt grouping trapping container

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, it is a double-layer spherical shell structure core melt group collection container provided by the present invention, which is the key equipment to realize the independent collection of reactor core melt group. The collection container includes a shell 1 and a rotatable inner tank 2 arranged in the outer shell 1. A gap 13 between the outer shell 1 and the inner tank 2 is provided, and the maximum width of the gap 13 of the shell inner tank is smaller than that of the inner tank 2. 8% of the diameter. The material of shell 1 can be TaN, ZrN, WB 2 , SiC and ZrB 2 , the material of the liner 2 can be a metal or an alloy with a melting point higher than 1500°C. A plurality of liner supports 7 with fixed positions are arranged in the space 13 of the inner liner of the outer casing. The i...

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 core melt grouping trapping container. The container comprises a housing and an inner container rotatingly ranged in the housing. A housing-inner container gap is formed between the housing and the inner container. Multiple fixed inner container supports are arranged in the gap. The inner wall of the housing is provided with blocking bosses. The inner wall of the inner container is provided with an inner container eccentric balance weight. After the inner container is filled with melt, the center of gravity of the inner container produces an offset, and in a container rolling state, the blocking bosses lock the inner container so that the inner container is in a seal state. Corresponding positions of the housing and the inner container are respectively provided with a housing melt inlet and an inner container melt inlet. The grouping trapping container is conducive to effective cooling and minimizes radioactive substance release. Relative displacement of the double-layer ball shell structure realizes container self-sealing. Through combination of a metal inner container gravity center offset design and the bosses of the inner wall of the refractory ceramic housing, the inner container is locked in a container rolling state.

Description

technical field [0001] The invention belongs to the field of core catcher design, in particular to a grouped catch container for core melt. 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 pressure vessel. After the pressure vessel melts through, ...

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): G21C9/016
CPCG21C9/016Y02E30/30
Inventor 韩旭马卫民马一元一单师鹏王一光朱晨张丽郭强
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