Combined cycle electric power plant and a heat recovery steam ge

Details Combined cycle electric power plant and a heat recovery steam ge Combined cycle electric power plant and a heat recovery steam ge

1974-08-08

1976-06-29

Ostrager, Allen M.

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

60658, 122406S, F01K 2310, F01K 1302

Patent

active

039656756

ABSTRACT:
A combined cycle electric power plant includes gas and steam turbines and a steam generator for recovering the heat in the exhaust gases exited from the gas turbine and for using the recovered heat to produce and supply steam to the steam turbine. The steam generator includes an economizer tube and a high pressure evaporator tube and a boiler feed pump for directing the heat exchange fluid serially through the aforementioned tubes. A condenser is associated with the steam turbine for converting the spent steam into condensate water to be supplied to a deaerator for removing undesired air and for preliminarily heating the water condensate before being pumped to the economizer tube. Condensate flow through the economizer tube is maintained substantially constant by maintaining the boiler feed pump at a predetermined, substantially constant rate. A bypass conduit is provided to feed back a portion of the flow heated in the economizer tube to the deaerator; the portion being equal to the difference between the constant flow through the economizer tube and the flow to be directed through the high pressure evaporator tube as required by the steam turbine for its present load.

REFERENCES:
patent: 3267911 (1966-08-01), Heathcote

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