Provision for rapid warming of steam piping of a power plant

Details Provision for rapid warming of steam piping of a power plant Provision for rapid warming of steam piping of a power plant

2011-08-02

2011-08-02

Nguyen, Hoang M (Department: 3748)

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

C060S657000

Reexamination Certificate

active

07987675

ABSTRACT:
A steam power plant, in which steam from a steam generator is received by a steam turbine, is provided and includes a conduit, a main steam control valve (MSCV) disposed along the conduit to admit the steam to the steam turbine when a characteristic thereof satisfies a threshold, a bypass line, coupled to the conduit between a super-heater and a valve, including a bypass line valve which is opened until the threshold is satisfied such that the bypass line removes a portion of the steam, an evacuator line, coupled to the conduit between the MSCV and the steam turbine, including an evacuator valve which is opened to regulate a thermal environment within the steam turbine during a start up thereof, and a warming line originating between the valve and the MSCV on the conduit and terminating downstream of the evacuator valve disposed along the evacuator line.

REFERENCES:
patent: 3243961 (1966-04-01), Caracristi
patent: 3271961 (1966-09-01), Wiener
patent: 4099384 (1978-07-01), Stevens et al.
patent: 4316362 (1982-02-01), Ninomiya et al.
patent: 4425762 (1984-01-01), Wakamatsu et al.
patent: 4651532 (1987-03-01), Abe
patent: 5412936 (1995-05-01), Lee et al.

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