Environmentally sequestered spent fuel pool

A technology for spent fuel pool and environmental isolation, applied in the detection of leaks from nuclear spent fuel pools, in the field of spent fuel pools, which can solve problems such as increasing the cost of storage systems, leaks, etc.

Active Publication Date: 2017-08-18
HOLTEC INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the double tank design has several disadvantages, namely: (1) the structural capacity of the storage system is adversely affected by two reinforced concrete containers separated from each other, in addition to the springs and dampers that fix their sp...

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  • Environmentally sequestered spent fuel pool
  • Environmentally sequestered spent fuel pool
  • Environmentally sequestered spent fuel pool

Examples

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Embodiment Construction

[0021] The features and benefits of the invention are illustrated and described herein by reference to exemplary embodiments. The description of the exemplary embodiments is intended to be read in conjunction with the accompanying drawings, which are to be considered a part of the entire written description. Accordingly, the present disclosure expressly should not be limited to the exemplary embodiments, which illustrate some possible non-limiting combinations of features that may exist alone or in other combinations of features.

[0022] In the description of the embodiments disclosed herein, any reference to directions or orientations is for convenience of description only and is not intended to limit the scope of the invention in any way. Related terms such as "lower", "upper", "horizontal", "vertical", "above", "below", "upward", "downward", "top" and "bottom" and their derivatives (such as , "horizontally", "downwardly", "upwardly", etc.) should be construed to refer to ...

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Abstract

An environmentally sequestered nuclear spent fuel pool in one embodiment includes sidewalls and a base slab that confine a water impoundment. The pool includes fuel racks containing spent fuel assemblies which heat the water via radioactive decay. A dual liner system enclosing the pool forms an impervious barrier providing redundant provisions for preventing leakage of contaminated pool water into the environment. An interstitial space is formed between the liners which may be maintained at sub-atmospheric pressures by a vacuum pump system that evacuates the space. By maintaining the pressure in the space at a negative pressure with corresponding boiling point less than the temperature of the pool water, any leakage through the inner-most liner into the interstitial space will vaporize and be extracted via the pump for signaling a potential leak in the liner system.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 62 / 061,089, filed October 7, 2014, the entire contents of which are incorporated herein by reference. Background technique [0003] The present invention relates generally to storage of nuclear fuel assemblies, and more particularly to an improved spent fuel pool for wet storage of these fuel assemblies. [0004] Spent fuel pools (sometimes two or more) are an integral part of every nuclear power plant. On some occasions, separate wet storage facilities have also been constructed to provide additional storage capacity for excess fuel discharged from the reactors. An autonomous wet storage facility for one or more reactor units is sometimes denoted "off-reactor" by the abbreviation AFR. While most countries have increased their fuel storage capacity for use within nuclear power plants by building dry storage facilities, France's nuclear program has been ...

Claims

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Application Information

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IPC IPC(8): G21F5/012G21C19/07G01M3/12
CPCG21C13/10G21C17/002G21C19/07Y02E30/30G01M3/00
Inventor 克里希那·P·辛格
Owner HOLTEC INT
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