Method for starting a steam turbine installation

Details Method for starting a steam turbine installation Method for starting a steam turbine installation

2006-06-13

2010-10-05

Denion, Thomas E (Department: 3748)

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

C060S656000, C060S660000

Reexamination Certificate

active

07805941

ABSTRACT:
The invention relates to a method for starting a steam turbine installation which comprises at least one steam turbine and at least one steam-generating installation for generating steam for driving the steam turbines, the steam turbine installation having at least one casing component, which has an initial starting temperature of more than 250° C., the temperature of the steam and of the casing component being continually measured, and the casing component of the steam turbine installation being supplied with steam from the starting time point onwards. The starting temperature of the steam is lower than the temperature of the casing component and the temperature of the steam is increased with a start transient and the staring temperature is chosen such that the change in temperature per unit of time of the casing component lies below a predefined limit. The temperature of the casing component initially decreases, until a minimum is reached and then increases.

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Prof. Dr. Dolezal; Anfahren eines auf 550° C. erhitzen Durlauf-Abhitzekessels; S. 1163 bis 1166; VGB Kraftwerkstechnik 69; 12; Magazine; 1989; DE.

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