| 摘要 |
985,647. Nuclear power plant. SULZER BROS. Ltd. March 2, 1964 [March 20, 1963], No. 8755/64. Heading G6C. In a nuclear reactor power plant, in which a turbine is supplied with steam from heat exchangers heated by reactor coolant gas, leakage of gas into the steam section is detected and the defective exchanger is automatically isolated. The leakage may be detected either by a pressure or pH sensitive device, mounted in the steam outlet ends of the heat exchangers and which supplies control signals to the short-off valves at the exchanger inlet and outlet. The turbine exhaust is connected to a condenser and preheaters. To prevent a pressure rise in the steam side of each heat exchanger beyond a predetermined limit a safety valve is mounted at the inlet. The reactor coolant is CO 2 and where a pH device is used a leakage is detected by the presence of carbonic acid in the steam section of the heat exchanger.
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