| 摘要 |
<P>PROBLEM TO BE SOLVED: To minimize an outflow from a fracture surface by suppressing backflow in a main steam pipe by generating pressure loss in fracture of the main steam pipe while suppressing a decrease in operational efficiency of a plant by reducing pressure loss of a main steam system in normal driving. <P>SOLUTION: In a main steam header 3 of a nuclear power plant with plural nuclear reactor side main steam pipes 13 and turbine side main steam pipes 18 connected to each other, the respective nuclear reactor side main steam pipes 13 have projections 14 inside the main steam header 3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
