首页> 外国专利> METHOD FOR INCREASING THE POWER OF A COMBINED-CYCLE POWER PLANT, AND COMBINED-CYCLE POWER PLANT FOR CONDUCTING SAID METHOD

METHOD FOR INCREASING THE POWER OF A COMBINED-CYCLE POWER PLANT, AND COMBINED-CYCLE POWER PLANT FOR CONDUCTING SAID METHOD

机译:联合循环电厂的功率增加方法以及进行所述方法的联合循环电厂

摘要

The present invention relates to a method to temporarily increase the power of a gas turbine (11), a part of combined-cycle power plant (10). Exhaust gas of the gas turbine (11) is used in a heat recovery vapor generator (13) to generate vapor for a water/vapor cycle having a vapor turbine (12), comprising: a high pressure vapor turbine (20); a medium pressure turbine (21); and a low pressure turbine (22). The method comprises a step for injecting vapor from the water/vapor cycle to the gas turbine (11) at a preset injection pressure. Vapor with a lower pressure than the preset injection pressure is obtained from the water/vapor cycle and pressure obtained from the water/vapor cycle goes through a compression step by an individual compressing means (14) to reach the preset injection pressure. And the compression vapor is injected into the gas turbine (11), thus improving efficiency. Preferably, the individual compressing means (14) comprises at least one vapor operating ejector.
机译:本发明涉及一种临时增加燃气轮机(11)的功率的方法,该燃气轮机是联合循环发电厂(10)的一部分。燃气轮机(11)的废气用于热回收蒸气发生器(13)中,以产生具有水轮机(12)的水/蒸气循环的蒸气,该蒸气轮机(12)包括:高压蒸气轮机(20)。中压涡轮(21);低压涡轮(22)。该方法包括以预设的喷射压力将来自水/蒸气循环的蒸气喷射到燃气轮机(11)的步骤。从水/蒸气循环中获得的压力低于预设喷射压力的蒸气,并且从水/蒸气循环中获得的压力通过单独的压缩装置(14)经历压缩步骤以达到预设喷射压力。并且,将压缩蒸气注入燃气轮机(11),从而提高了效率。优选地,各个压缩装置(14)包括至少一个蒸气操作喷射器。

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