Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Patent
1989-01-18
1990-07-31
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
60 39464, 122 4D, F02C 326, F02C 618
Patent
active
049441507
ABSTRACT:
A power plant burning a fuel at a pressure exceeding the atmospheric pressure includes a combustor formed with cooled walls which form a feed water preheater. A by-pass conduit with a control valve for draining feed water is connected to a feed water conduit between the feed water preheater (the combustor walls) and an evaporator in the combustor. This by-pass conduit may be connected to a feed water tank. At a very low load and in the case of a gas turbine trip, the necessary water flow for cooling the walls of the combustor may exceed the requirement of feed water to the evaporator. Under these operating conditions feed water may be drained off ahead of the evaporator through the by-pass conduit.
REFERENCES:
patent: 3648666 (1972-03-01), Foldes et al.
patent: 4301771 (1981-11-01), Jukkola et al.
patent: 4498286 (1985-02-01), Branstrom et al.
patent: 4748940 (1988-06-01), Honig
ABB Stal AB
Casaregola Louis J.
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