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Nuclear waste storage tank

A nuclear waste and shell technology, applied in the field of nuclear waste dry storage tanks and systems, and dry storage systems, can solve the problems that the results are difficult to know

Active Publication Date: 2021-11-26
HOLTEC INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the outcome of this measure has long been difficult to know

Method used

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  • Nuclear waste storage tank
  • Nuclear waste storage tank
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Embodiment Construction

[0030] Described features and benefits of the present invention herein described and illustrated by reference to exemplary embodiments ( "example"). Description of exemplary embodiments is intended to be read in conjunction with the accompanying drawings, it will be considered part of the entire written description. Accordingly, the present disclosure expressly not limited to such an exemplary embodiment, this exemplary embodiment illustrates an exemplary embodiment may be present alone or in combination of some possible non-limiting combinations of features to features present in the other.

[0031]Description of the embodiments disclosed herein, any reference to direction or orientation is merely for convenience of description, not intended to limit the invention in any way. Such as "lower", "upper", "horizontal", "vertical", "above", "below", "up", "down", "top" and "bottom" and derivatives thereof such as "horizontally" , "downwardly", "upwardly", etc.) should be construed to ...

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Abstract

In one embodiment, a dry storage system for radioactive nuclear waste includes a canister having a tubular shell defining an interior cavity for storing nuclear waste, a lid sealably welded to one end of the shell and attached to An end closure for the second end of the housing. The end closure includes a base plate having an upwardly turned peripheral annular closure flange. In one embodiment, a circumferentially extending butt joint is formed between the closing flange and the second end of the housing, the butt joint being hermetically sealed by a full wall thickness butt weld. Various embodiments may further include a secondary pressure maintaining barrier that encloses the tank or selected portions thereof that are most susceptible to failure under certain conditions.

Description

[0001] Cross-references to related applications [0002] This application claims priority from U.S. Provisional Patent Application No. 62 / 242,458, filed October 16, 2015, the entire contents of which are incorporated herein by reference. Background technique [0003] The present invention relates generally to dry storage systems for highly radioactive nuclear waste, and more particularly to tank systems for storing such material. [0004] In the operation of nuclear reactors such as those used in nuclear power plants, hollow zirconium-tin alloy tubes filled with enriched uranium (called fuel assemblies) are burned within the nuclear reactor core to produce steam for the Rankine power generation cycle. After energy consumption reaches a predetermined level, these fuel assemblies need to be removed from the reactor. These spent nuclear fuel ("SNF") rods remain highly radioactive and generate considerable heat after exhaustion and subsequent removal from the reactor, requiring g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C19/00
CPCG21F5/008G21F5/10G21F5/12Y02E30/30
Inventor 克里希纳·P·辛格
Owner HOLTEC INT
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