| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the rise width of the reactor pressure in case of occurrence of a load loss event. <P>SOLUTION: In an atomic power plant which is provided with a containment vessel containing a nuclear reactor, a main steam piping connecting the nuclear reactor to a turbine, a condenser which condenses steam emitted from the turbine, a feedwater pump which drives cooling water supplied by the condenser to the nuclear reactor, separation valves placed before and after a penetration part of the main steam piping which penetrates the containment vessel, a relief safety valve placed on the main steam piping between the separation valves and the nuclear reactor, a steam adjustment valve placed on the main steam piping between the separation valves and the turbine, a turbine bypass piping that connects the main steam piping between the steam adjustment valve and the separation valves to the condenser, and a turbine bypass valve placed on the turbine bypass piping, a turbine bypass safety valve which is opened by pressure difference between the upstream and the downstream is provided on the main steam piping between the steam adjustment valve and the separation valves, and emits steam into the condenser. <P>COPYRIGHT: (C)2012,JPO&INPIT |
