Power plant and system for accelerating a cross compound turbine

Details Power plant and system for accelerating a cross compound turbine Power plant and system for accelerating a cross compound turbine

1975-09-30

1977-02-15

Ostrager, Allen M.

Power plants

System having plural motors or having diverse types of...

Having condition responsive control

60663, 60715, 60644, F01K 1302

Patent

active

040075974

ABSTRACT:
An electric power plant having a cross compound steam turbine and a steam source that includes a high temperature gas-cooled nuclear reactor. The steam turbine includes high and intermediate-pressure portions which drive a first generating means, and a low-pressure portion which drives a second generating means. The steam source supplies superheat steam to the high-pressure turbine portion, and an associated bypass permits the superheat steam to flow from the source to the exhaust of the high-pressure portion. The intermediate and low-pressure portions use reheat steam; an associated bypass permits reheat steam to flow from the source to the low-pressure exhaust. An auxiliary turbine driven by steam exhausted from the high-pressure portion and its bypass drives a gas blower to propel the coolant gas through the reactor. While the bypass flow of reheat steam is varied to maintain an elevated pressure of reheat steam upon its discharge from the source, both the first and second generating means and their associated turbines are accelerated initially by admitting steam to the intermediate and low-pressure portions. The electrical speed of the second generating means is equalized with that of the first generating means, whereupon the generating means are connected and acceleration proceeds under control of the flow through the high-pressure portion.

REFERENCES:
patent: 2204138 (1940-06-01), Knowlton et al.

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