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US 6,647,728 B2Granted
Method for operating a turbine and turbine installation
AssigneeSiemens Aktiengesellschaft
InventorRobert Seitz
Life of this patent
Estimating the term…
Abstract
The thermal load to which a turbine is subjected is kept within an acceptable range by monitoring the change in temperature of the medium that is supplied to the turbine, especially fresh stream, over time. An emergency trip for the supply of fresh steam to the turbine preferably takes place if a maximum temperature gradient is exceeded.
Claims19
A method for operating a turbine to which a gaseous medium is supplied, comprising:
- monitoring a change with time of a temperature of the medium;
- and
- interrupting a supply of the medium to the turbine when a maximum temperature gradient dT/dt(max) is exceeded, wherein the maximum permissible temperature gradient dT/dt(max) is specified as a function of a load condition of the turbine.
Dependencies are inferred from the claim text.