发明名称 |
METHOD FOR INCREASING THE POWER OF A COMBINED-CYCLE POWER PLANT, AND COMBINED-CYCLE POWER PLANT FOR CONDUCTING SAID METHOD |
摘要 |
The invention relates to a method for temporary increasing the power of a gas turbine, which is part of a combined-cycle power plant, wherein the exhaust gas of the gas turbine is used in a heat recovery steam generator to generate steam for a water/steam cycle including a steam turbine with a high pressure steam turbine, an intermediate pressure steam turbine and a low pressure steam turbine, whereby the method comprises the step of injecting steam from the water/steam cycle at a predetermined injection pressure into the gas turbine. The efficiency is improved by taking steam of a lower pressure than the predetermined injection pressure from the water/steam cycle, increasing the pressure of the steam taken from the water/steam cycle to the predetermined injection pressure by subjecting it in separate compressing means to a compression step, and injecting the compressed steam into the gas turbine. |
申请公布号 |
US2015369125(A1) |
申请公布日期 |
2015.12.24 |
申请号 |
US201514741893 |
申请日期 |
2015.06.17 |
申请人 |
ALSTOM Technology Ltd |
发明人 |
Reiter Wilhelm;Lilley Darrel Shayne;Li Hongtao |
分类号 |
F02C3/30;F01K23/10;F01K21/04 |
主分类号 |
F02C3/30 |
代理机构 |
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代理人 |
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主权项 |
1. A method for temporary increasing the power of a gas turbine, which is part of a combined-cycle power plant, wherein the exhaust gas of said gas turbine is used in a heat recovery steam generator to generate steam for a water/steam cycle including a steam turbine with a high pressure steam turbine, an intermediate pressure steam turbine and a low pressure steam turbine, said method comprising;
injecting steam from said water/steam cycle at a predetermined injection pressure into said gas turbine, wherein steam of a lower pressure than said predetermined injection pressure is taken from said water/steam cycle, that the pressure of said steam taken from said water/steam cycle is increased to said predetermined injection pressure by subjecting it in separate compressing means to a compression step, and that said compressed steam is injected into said gas turbine. |
地址 |
Baden CH |