Method for operating a steam power plant and steam power plant for carrying out said method
AssigneeSiemens Aktiengesellschaft
InventorSergej Reissig
Life of this patent
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Abstract
The invention relates to a method for operating a steam power plant comprising a steam generator and a combustion chamber associated therewith, wherein pre-warmed combustion air is guided therein in addition to a fossil fuel. According to the invention, said plant can be operated with a particularly high efficiency ratio in various operating conditions. As a result, the combustion air is at least partially released after the pre-warming thereof and before the introduction thereof into the combustion chamber. A steam power plant which is particularly suitable for carrying out said method comprises, in addition to a pre-air warmer, an air turbine which is mounted downstream from said pre-air warmer in a fresh air pipe.
Claims12
A method for operating a steam power plant comprising:
- providing a steam generator;
- providing a combustion chamber fluidly connected to the steam generator;
- feeding pre-warmed combustion air and a fossil fuel into the combustion chamber;
- releasing the combustion air through an air turbine after the combustion air is pre-warmed and before being introduced into the combustion chamber;
- connecting a regulating device to the air turbine and a temperature sensor such that the regulating device controls the output to be extracted from the combustion air as the combustion air flows through the air turbine;
- and
- setting the output extracted during release on the basis of a characteristic value for the temperature of the combustion air sensed by said sensor flowing toward the combustion chamber.
Dependencies are inferred from the claim text.