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Nuclear reactor spent fuel dry type storage house

A technology for nuclear reactors and spent fuel is applied in the field of nuclear reactor spent fuel dry storage, can solve the problems of strict manufacturing requirements for storage pools, high processing quality of fuel grids, and high operation and maintenance costs, and achieves low overall cost, compact structure, and construction. simple effect

Inactive Publication Date: 2011-06-15
CHINA NUCLEAR POWER ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The storage method of reactor spent fuel at home and abroad mainly adopts wet storage method, but wet storage requires high-quality processing of fuel grids, strict manufacturing requirements for storage pools, high cost, and a set of water supply, cooling and treatment facilities. Not only the facilities are huge, Operation and maintenance costs are also higher

Method used

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  • Nuclear reactor spent fuel dry type storage house
  • Nuclear reactor spent fuel dry type storage house
  • Nuclear reactor spent fuel dry type storage house

Examples

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Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0014] This example is a brand-new dry storage depot developed and designed for a research reactor. The spent fuel transportation process after the research reactor is unloaded is as follows: first, it is stored in the spent fuel pool for a certain number of years, and then it is transported to the spent fuel dry storage depot by transfer. Above, open the storage cylinder cover and the shielding sealing plug, use the transfer alignment support to put the transfer cabin in place, and send the spent fuel in the transfer cabin into the storage cylinder for long-term storage; the spent fuel that has expired can also be used for transfer The cabin is removed from the storage tank, loaded into the spent fuel transport container and transported to the designated location for storage.

[0015] The storage of spent fuel assemblies in research reactors adopts c...

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Abstract

The invention relates to a nuclear reactor spent fuel storage technology, in particular to a nuclear reactor spent fuel dry type storage house. A house body of the storage house is arranged in a factory; the top of the house body has a pound-shaped girder framework structure; a storage barrel is arranged in each vertical hole of a pound-shaped girder; a plurality of storage pipes are arranged in the storage barrel; each storage pipe is used for storing spent fuels; the storage barrels are poured with heavy concrete after being positioned, so the upper part of the storage house has an integrated structure and radioactive shielding function; the storage house is provided with an air exhaust cooling facility so as to keep refreshing the air in the house and keep a certain negative pressure and a proper temperature; and a heavy concrete shielding layer is arranged at the periphery of the whole storage house. The storage house is good in shock resistance, compact in structure, easy in operation, and low in running maintenance cost and whole production cost.

Description

technical field [0001] The invention relates to nuclear reactor spent fuel storage technology, in particular to a nuclear reactor spent fuel dry storehouse. Background technique [0002] Spent fuel storage facilities are used to store radioactive spent fuel after discharge from the reactor. Due to the adoption of various measures to resist the strong radioactive release of spent fuel and the large release of decay heat, the general structure is relatively large, and the design and construction quality requirements are high. It is also relatively high, and generally adopts two storage schemes of dry method and wet method. The storage method of reactor spent fuel at home and abroad mainly adopts wet storage method, but wet storage requires high-quality processing of fuel grids, strict manufacturing requirements for storage pools, high cost, and a set of water supply, cooling and treatment facilities. Not only the facilities are huge, Operation and maintenance costs are also h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C19/07
CPCY02E30/30
Inventor 屈大韵陈峰
Owner CHINA NUCLEAR POWER ENG CO LTD
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