Spent fuel storage and cooling system

A cooling system and spent fuel technology, applied in the direction of reactor fuel elements, reactors, greenhouse gas reduction, etc., can solve problems such as re-criticality, unavoidable storage safety, radioactivity, etc., to ensure flexibility and reliability, and ensure safety High performance and economy, high cooling capacity

Active Publication Date: 2016-02-24
CHINA NUCLEAR POWER ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spent fuel has the characteristics of continuous release of decay heat, radioactivity, and may return to criticality under cer

Method used

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  • Spent fuel storage and cooling system
  • Spent fuel storage and cooling system
  • Spent fuel storage and cooling system

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Embodiment Construction

[0022] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 Shown is the connection diagram of the spent fuel storage and cooling system of the present invention. The storage system includes a spent fuel pool 001PL, a fuel transfer bin 004PL on one side of the spent fuel pool, a fuel loading well 005PL and a fuel flushing well 006PL on the other side of the spent fuel pool. The spent fuel pool, fuel transfer bin, fuel loading well and fuel flushing well are shared by the two piles. The storage system also includes two refueling pools 002PL and 007PL. The two refueling pools are respectively set on the two sides of the fuel transfer bin 004PL and are shared by the two stacks. Each adjacent water body is provided with a sluice gate, and an airtight device is provided on the sluice gate, and the airtight device includes an anti-shock compressed air storage ...

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Abstract

The invention relates to a spent fuel storage and cooling system. The storage system includes a spent fuel pool, a fuel transshipment warehouse disposed at one side of the spent fuel pool, a fuel loading well and a fuel flushing well that are arranged at the other side of the spent fuel pool. The spent fuel pool, the fuel transshipment warehouse, the fuel loading well and the fuel flushing well are all shared by two piles. The storage system also includes two refueling pools, which are respectively arranged on both sides of the fuel transshipment warehouse. A water gate is disposed between two adjacent water bodies, and is equipped with an airtight device. The cooling system consists of a cooling series, and the cooling series is connected to the spent fuel pool to realize cooling of the spent fuel pool. The storage and cooling system provided by the invention has the advantages of higher reliability, stronger cooling ability, and more flexible operation mode. At the same time, the system also provides corresponding means for spent fuel pool cooling and reactor gas emission under accident conditions.

Description

technical field [0001] The invention belongs to a storage and cooling system, in particular to a spent fuel storage and cooling system. Background technique [0002] Spent fuel storage is an important stage of the nuclear fuel cycle. Nuclear power plants need to continuously replace new nuclear fuel and unload used spent fuel throughout their lifetime. Spent fuel has the characteristics of continuously emitting decay heat, being radioactive, and may return to criticality under certain circumstances. Therefore, for any form of nuclear power plant, the storage safety of spent fuel is an unavoidable problem. The spent fuel pool has the characteristics of high decay heat during refueling of nuclear power plants and low decay heat during normal operation. Safety and economy need to be considered in the design of spent fuel pool cooling system. [0003] The invention aims to build a spent fuel storage and cooling system suitable for modular small reactors with high reliability, ...

Claims

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Application Information

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IPC IPC(8): G21C19/07G21C19/08
CPCG21C19/07G21C19/08Y02E30/30
Inventor 李博李军刘江韩旭于沛皮月
Owner CHINA NUCLEAR POWER ENG CO LTD
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