| 摘要 |
A power plant includes a steam generator 1, a turbine 2, 3, a condenser 4 which cools the steam discharged from the turbine to form condensate water by using seawater, a condensate water pipe 35 which supplies the condensate from the condenser to the steam generator, at least one seawater leak detection device 5, an attemperator spray 16 which connects to the condensate water pipe to be supplied with the condensate water from a connecting point where the attemperator spray connects to the condensate water pipe, and sprays the condensate water to the steam inside the condenser, and a pipe 13 which diverges from the condensate water pipe and supplies the condensate water to the steam generator. If the seawater leak detection device detects a leak in the condenser, the power plant stops pouring the condensate water from the connecting point to the steam generator and stops pouring the condensate water to the pipe diverging from the condensate water pipe. In other arrangements a water tank (25, Fig 2) is used to supply attemperator in case of a seawater leak or a main steam separation valve (1A, Fig 3) is closed. |
