Method for operating a recirculating waste heat steam generator
AssigneeSiemens Aktiengesellschaft
InventorsJan Bruckner, Martin Effert, Frank Thomas
Life of this patent
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Abstract
A method for operating a recirculating waste heat steam generator is provided, in which in a pressure stage of the recirculating waste heat steam generator, the feed water mass flow is guided on the basis of a specified desired value in order to control the water level in a drum. The method should give a recirculating waste heat steam generator a particularly high degree of efficiency and simultaneously a particularly high level of operational flexibility. For this purpose the thermal input introduced into an evaporator of the pressure stage is used as input variable in the determination of the desired value.
Claims11
A method for operating a recirculating waste heat steam generator comprising,
- determining a specified desired value,
- managing the feedwater mass flow in a pressure stage of the recirculating waste heat steam generator on the basis of the specified desired value in order to control the water level in a drum,
- wherein the thermal power introduced into an evaporator of the pressure stage is used as an input variable in the determination of the desired value.
Dependencies are inferred from the claim text.