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Spent fuel circulating cooling system

A circulating cooling system and circulating cooling technology, applied in the field of spent fuel storage, can solve the problem of high storage costs

Inactive Publication Date: 2014-09-17
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, wet storage usually needs to be realized by a complex system, and its necessary components include: spent pool cooling subsystem, intermediate loop subsystem, final heat sink subsystem, radioactive waste treatment subsystem, accident prevention, alarm and emergency subsystem, etc. , this design has already achieved a miniature version of the main auxiliary system of the nuclear power plant, which will inevitably make the storage cost high

Method used

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 As shown, a spent fuel circulating cooling system provided by the present invention includes a spent fuel storage pool 3, an intermediate heat exchange pool 1 connected to the spent fuel storage pool 3, and a final heat sink 2 containing a cold water body. The hot water pool 1 is separated from the final heat sink 2 by the final heat sink isolation gate 5 arranged between them. Among them, the spent fuel storage pool 3 is used to store the spent fuel assembly 20 and contain the radioactive substances that may be produced; the intermediate heat exchange pool 1 is used as the intermediate heat sink of the system and the gravity replenishment water source of the spent fuel pool; the final heat sink 2 is connected to the intermediate heat exchange pool 1 Perform water body exchange to realize system heat export.

[0023] I...

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Abstract

The invention relates to a spent fuel circulating cooling system, which comprises a spent fuel water storage pool (3), an intermediate heat exchange pool (1) connected with the spent fuel water storage pool (3) and a final heat trap (2) containing cold water body. The intermediate heat exchange pool (1) and the final heat trap (2) are isolated by a final heat trap isolation gate (5) between the two. The spent fuel pool closed cycle cooling system provided by the invention maintains the technical advantage of a spent fuel wet storage method, significantly decreases the system cost and spent fuel storage cost through the simplified design, and is especially suitable for a spent fuel intermediate storage facility.

Description

technical field [0001] The invention belongs to the technical field of spent fuel storage, and in particular relates to a spent fuel circulating cooling system. Background technique [0002] Spent fuel storage is an important stage of the nuclear fuel cycle. In the initial stage of nuclear power plant operation, spent fuel is usually placed in the spent fuel pool in the nuclear power plant for cooling and storage (referred to as on-site storage). capacity. After the spent fuel has been cooled and radioactively decayed in the spent fuel pool for several years, it must be transported to the spent fuel storage facility outside the reactor building for intermediate storage of spent fuel (referred to as off-site storage) or final disposal. The unloading operation provides conditions. [0003] Most of the patented technologies related to spent fuel wet storage and cooling systems are designed for on-site storage systems, such as the Chinese utility model patent application "An ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C19/08
CPCY02E30/30
Inventor 韩旭李军刘江马如冰朱明华
Owner CHINA NUCLEAR POWER ENG CO LTD
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