| 摘要 |
993,872. Gas turbine plant. ESCHER WYSS A. G. Aug. 27, 1962 [Aug. 25, 1961], No. 32832/62. Heading F1G. [Also in Division B1] In a closed-circuit thermal power plant comprising a turbine 4 which drives electric generator 12 also compressor 1, the gaseous working medium, e.g. air, leaving the turbine is cooled by passing it through heat-exchanger 5 wherein the unwanted heat is transferred to a liquid, e.g. sea water, which is to be distilled in flash evaporator 14. The heat-exchanger 5 comprises two parts through which the gaseous medium flows successively, giving up heat in the first part 5<SP>1</SP> to the liquid immediately before the latter flows via reducing-valve 22 into the evaporator, and the gaseous medium being further cooled in the second part 5<SP>2</SP> by heatexchange with a liquid at least part of which is not to be distilled in evaporator 14. The cooled gaseous medium is drawn into compressor 1, and the compressed gas passes through pipe 6 to heat-exchanger 2, and then to heater 3 in which it is heated by hot combustion gases. The hot gaseous medium passes through pipe 8 to turbine 4, and the expanded gas flows via heat-exchanger 2 to heat-exchanger 5. In an example, the working medium is air which enters heat-exchanger 5 at a temperature of 130‹C. and leaves it at 35‹C.
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