Power plants – Motive fluid energized by externally applied heat – Process of power production or system operation
Patent
1985-10-25
1986-07-08
Ostrager, Allen M.
Power plants
Motive fluid energized by externally applied heat
Process of power production or system operation
60663, 60679, F01K 1302
Patent
active
045985510
ABSTRACT:
A steam turbine-generator system includes a reheater bypass valve which cooperates with both a high- and low-pressure bypass valve in the early stages of turbine loading to divert steam in a bypass flow from a high-pressure turbine to the input of a reheat turbine without passing the steam through a reheat portion of the boiler. The pressure and temperature drops in the high-pressure turbine are controlled by the setting of the pressure threshold of the low-pressure bypass valve. A check valve prevents steam flow into the reheat portion of the boiler until a desired operating condition is attained. The steam flowing to the reheat turbine directly from the high-pressure turbine is at a sufficiently low temperature to avoid temperature insult to the rotor of the reheat turbine. Once the turbine is partially loaded, the reheater bypass, high-pressure bypass and low-pressure bypass valves are closed to establish a conventional reheat turbine configuration. During a cold start, the main stop valve is employed to throttle steam to the high-pressure turbine to additionally decrease the temperature of the steam exiting the high-pressure turbine.
REFERENCES:
patent: 2586510 (1952-02-01), Bryant
patent: 2586511 (1952-02-01), Bryant
patent: 3069859 (1962-12-01), Weehuizen
patent: 3264826 (1966-08-01), Kane et al.
Dimitroff, Jr. Vladimir T.
Wagner James B.
General Electric Company
Mitchell James W.
Ostrager Allen M.
LandOfFree
Apparatus and method for controlling steam turbine operating con does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for controlling steam turbine operating con, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling steam turbine operating con will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1445188