Power plants – Motive fluid energized by externally applied heat – Process of power production or system operation
Patent
1988-09-30
1989-10-17
Ostrager, Allen M.
Power plants
Motive fluid energized by externally applied heat
Process of power production or system operation
60653, 60654, 60679, F01K 1302
Patent
active
048738271
ABSTRACT:
A steam turbine plant comprising: (a) first, second and third turbines which are coaxially combined with each other; (b) a boiler for supplying high pressure steam to the first turbine; (c) first, second and third bypass means for selectively bypassing steam around the first, second and third turbines, respectively, wherein each of the bypass means comprises means for cooling the steam; (d) a condenser for condensing steam discharged from the third turbine; (e) means for forming a vacuum in the condenser; (f) a first reheater for reheating steam discharged from the first turbine and out of the first bypass means and supplying the steam to the second turbine; (g) a second reheater for reheating steam discharged from the second turbine and from the second bypass means and for supplying the steam to the third turbine; (h) first, second and third control valves for controlling steam flow rates flowing into the first, second and third turbines, respectively; (i) first, second and third bypass valves for controlling flow of the first, second and third bypass means, respectively; and (j) means for selectively forming a vacuum in at least one of the first and second turbines.
REFERENCES:
patent: 4693086 (1987-09-01), Hoizumi et al.
patent: 4744723 (1988-05-01), Hashimoto et al.
Johnson et al., "An Integrated Turbine Bypass System," Proceedings of the American Power Conference, vol. 43, 6/1981, pp. 130-141.
Hadano Yoshikazu
Kajigaya Ichiro
Tsunoda Eiji
Electric Power Research Institute
Ostrager Allen M.
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