Power plants – Motive fluid energized by externally applied heat – Power system involving change of state
Patent
1983-06-24
1985-12-31
Ostrager, Allen M.
Power plants
Motive fluid energized by externally applied heat
Power system involving change of state
60679, F01K 734
Patent
active
045612552
ABSTRACT:
A feedwater heater system for a steam turbine power plant is provided which incorporates a liquid-to-liquid heat exchanger in addition to a plurality of vapor-to-liquid feedwater heaters. The advantage of this configuration is that the potential magnitude of entrained impurities within the feedwater stream is reduced without a significant increase in the overall heat rate of the steam turbine power plant. A preferred embodiment of the present invention incorporates three low pressure feedwater heaters and two high pressure feedwater heaters in conjunction with a drain cooler which is connected serially between the low and high pressure feedwater heaters. An alternative embodiment of the present invention incorporates a liquid-to-liquid heat exchanger connected hydraulically in parallel with the low pressure feedwater heaters. In both embodiments of the present invention, the liquid-to-liquid heat exchanger of the present invention receives the drain water from a reheater, such as a moisture separator-reheater, and exhausts this liquid to a condenser of the steam turbine power plant.
REFERENCES:
patent: 3913330 (1975-10-01), Horlitz, Jr.
Baehr F. J.
Ostrager Allen M.
Westinghouse Electric Corp.
LandOfFree
Power plant feedwater system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power plant feedwater system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power plant feedwater system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1017841