Reheater piping and drain cooler system

Details Reheater piping and drain cooler system Reheater piping and drain cooler system

1989-05-17

1990-09-11

Ostrager, Allen M.

Power plants

Motive fluid energized by externally applied heat

Having condition responsive control

60678, 60679, F01K 740

Patent

active

049552007

ABSTRACT:
A method and apparatus for improving a steam-to-steam reheat system employing the drain cooler concept in a steam turbine is disclosed. The large and complicated drain receiver of the prior art is eliminated, thereby removing a source of unreliable performance and internal flooding of MSR bundle drains. A drain cooler is utilized and its utility enhanced by installing a condensate bypass line with control valve which is used to adjust the condensing capability of the drain cooler in order to optimize the amount of scavenging steam for varying load conditions, thereby achieving an improvement in heat rate reduction.

REFERENCES:
patent: 3973402 (1976-08-01), Silvestri, Jr.
patent: 4825657 (1989-05-01), Silvestri, Jr. et al.

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