Liquid-immersed spent fuel storage system

A spent fuel and submerged technology, applied in the field of submerged spent fuel storage system, can solve the problems of poor reliability of the cooling system, achieve high reliability, eliminate the dependence of power supply and operators, and achieve the effect of efficient heat exchange

Inactive Publication Date: 2013-10-30
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
View PDF9 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for better utilization of waste materials such as used nuclear fuels or other types of wastes that have been stored temporarily without being fully consumed during their production process. By storing them within one area while also allowing it to be cooled with another type of material like water instead of gas, this method provides more reliable energy management systems compared to traditional methods.

Problems solved by technology

Technics Problem: Current methods used to store spent fuel involve shutting off from an empty tank or other source during periods when excessive temperatures can damage equipment such as pipes and valves. Dry-storage systems are more reliable but require longer times before they work effectively due to their low efficiency at removing thermal energy compared to liquid phase coolants (LPCs).

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
  • Liquid-immersed spent fuel storage system
  • Liquid-immersed spent fuel storage system
  • Liquid-immersed spent fuel storage system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] Such as figure 1 As shown, a liquid-submerged spent fuel storage system includes a closed spent fuel container 2, a spent fuel storage grid 3, a separate cooling device 4, a partition 5, an air cooling tower 6 and a spent fuel storage pool 7, on the ground 1 The cement pool is made below the spent fuel storage pool 7, and the spent fuel storage pool 7 is filled with cooling liquid. The cooling liquid is low-cost water or lithium bromide liquid that is difficult to volatilize and has a very high boiling point. The partition 5 is made of metal material with good heat insulation, such as stainless steel plate. The height of the part is 0.5 ~ 10m, which can be 0.5m, 2m or 10m, providing a passage for the flow of cooling liquid. The separator 5 is placed on the bottom of the spent fuel storage pool 7, and the separator 5 is immersed in the cooling liquid....

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 liquid-immerged type spent fuel storage system, belonging to the field of nuclear power station spent fuel storage. The invention implements long-time storage of spent fuel by adopting a non-kinetic mode. A partition is in a peripherically-closed frame structure; the lower part of the partition is provided with a plurality of water through holes; the partition is immersed in a coolant; a sealed container carrying a spent fuel assembly is arranged in a spent fuel storage grid positioned on the inner side of the partition; an evaporation end of a separate cooling unit is arranged in the coolant in the region outside the partition of a spent fuel storage pool; and a condensation end of the separate cooling unit is arranged in an air cooling tower on the ground. An independently built water pool is used as the spent fuel storage pool, the coolant is used for immersing the sealed container with a spent fuel assembly, the natural circulation of the coolant in the spent fuel storage pool transfers decay heat radiated by the spent fuel to the separate cooling unit, and the separate cooling unit leads the heat out through air, thereby substituting the dry-type storage mode of the spent fuel.

Description

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

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
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST 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