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Integrated isolation valve system for protection from loss of coolant accident (LOCA: LOSS OF COOLANT ACCIDENT) and method of operation thereof
Integrated isolation valve system for protection from loss of coolant accident (LOCA: LOSS OF COOLANT ACCIDENT) and method of operation thereof
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机译：用于防止冷却剂流失事故的集成隔离阀系统（LOCA：冷却液事故损失）及其操作方法
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摘要
The nuclear reactor includes a core containing fissile material disposed within the reactor pressure vessel, the reactor pressure vessel carrying at least a vessel penetration that carries exclusively the flow entering the reactor and the flow exiting the reactor. It has one container penetration part. An integrated isolation valve (IIV) system comprises a passive IIV with a non-actuator check valve, each built into a forged flange, and an active valve with an actuator, each built into a forged flange 1 One or more active IIVs. Each vessel penetration that carries exclusively the flow entering the reactor is protected by a passive IIV having a forged flange connected directly to the vessel penetration. Each vessel penetration carrying the flow exiting the reactor is protected by an active IIV having a forged flange connected directly to the vessel penetration. Each active valve can be a normally closed valve.
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