Self-contained emergency spent nuclear fuel pool cooling system

一种废核燃料、冷却剂的技术，应用在冷却装置、反应堆、核工程等方向

Inactive Publication Date: 2013-12-18
WESTINGHOUSE ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A circulation mechanism is provided for circulating the coolant through the coupling line

Method used

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  • Self-contained emergency spent nuclear fuel pool cooling system
  • Self-contained emergency spent nuclear fuel pool cooling system
  • Self-contained emergency spent nuclear fuel pool cooling system

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Embodiment Construction

[0015] As shown in FIG. 1 , in a typical light water reactor nuclear power generation facility (only its relevant components are shown), a reactor building 23 contains a reactor vessel 2 that contains a core 3 that Comprising a plurality of nuclear fuel elements 4, usually in the form of fuel bundles, generally referred to as fuel assemblies. During power generating operation, the reactor vessel 2 is closed by a roof or canopy 5 . The reactor vessel 2 is positioned within a reactor cavity 6 which in some designs is fluidly connected to a spent fuel pool 7 during an outage. However, even in designs where the reactor cavity is connected to the spent fuel pool during an outage, containment isolation during operation requires separation of the spent fuel pool water from the water in the replacement fuel cavity and the reactor cavity. In the embodiment of the facility shown in Figure 1, the spent fuel pool 7 is separated from the reactor chamber by a wall 8 having a closable openi...

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Abstract

An auxiliary system for cooling a spent nuclear fuel pool through a submersible heat exchanger to be located within the pool. In each train or installation, a single loop or series of loops of cooling fluid (e.g., sea water or service water) is circulated. The system is modular, readily and easily installed during an emergency and can be self operating with its own power source. Multiple trains may be used in parallel in order to accomplish the required degree of spent fuel pool cooling required.

Description

[0001] Related Application Cross Reference [0002] This application claims priority to Provisional Application Serial No. 61 / 469,184, filed March 30, 2011, entitled "Self-Operating Emergency Spent Fuel Pool Cooling System." technical field [0003] This invention relates generally to cooling systems for cooling water in nuclear reactor power generation facilities, and more particularly to temporary cooling system. Background technique [0004] In nuclear power generation facilities, the reactor vessel housing nuclear fuel and water are located in what are commonly referred to as the refueling chamber and the reactor chamber. During power generation, the primary fluid coolant (usually water) is heated by the nuclear fuel, and the heat is used to generate steam for power generation. During shutdowns for refueling and other phases when the reactor is not operating, the decay heat from the fuel continues to heat the water in the reactor vessel. Before fuel can be removed fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C15/18
CPCG21C19/08G21D1/02G21D1/04G21C19/07Y02E30/30Y02E30/00G21F5/10
Inventor T·M·洛伊德D·拉斯穆森J·库勒扎
Owner WESTINGHOUSE ELECTRIC CORP
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