| 摘要 |
1361825 Steam turbine plant SASAKURA ENG CO Ltd 30 June 1971 [30 June 1970] 30758/71 Heading B1B [Also in-Division Fl] The exhaust steam from turbine 5 is mixed with cooling water in condenser 7 maintained under vacuum by steam ejector 10; some of the mixture of condensate and cooling water withdrawn from the condenser is pumped through pipe 12 to the boiler 1 which supplies steam to the turbine, another portion of the effluent water from the condenser is pumped optionally through air-cooled heat-exchanger 18, then exchanges heat with liquefied natural gas (mainly methane) in vapourizer 23, and the cooled water is then passed to the spray assembly 9 of the condenser. Boiler 1 is heated by crude oil supplied through pipe 2, and by the natural gas evolved in vapourizer 23 and supplied to the boiler through pipe 3. The boiler water is heated in the steam ejector condenser 14 before being pumped through heater 16 to the boiler. Air cooled condenser 18 may be bypassed using bypass 27 by adjustment of valves 28, 29 and 30. The quantity of heat exchanged in exchanger 18 may also be adjusted with by-pass piping 27 and the associated valves.
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