凝汽式汽轮发电机组冬季低真空运行余热供暖的节能分析

Performance analysis of electricity and heat production from extracting of condensate steam turbine after rebuilding in low vacuum operation in winter

凝汽式汽轮发电机组热效率低，改造成抽汽供热和冬季低真空运行排汽余热供暖后，获得了巨大的节能效果，具有极好的应用效果。本文利用汽轮机变工况计算程序，对改造后不同运行工况进行了详细计算分析，并针对机组运行情况给出一些重要结论。

The condensation steam turbine as low efficiency. After it is rebuilt to heat from extracting and to heat from surplus beat of extracting in low vacuum operation in winter, so as to supply the electricity and heat in same time, the condensation steam turbine becomes high efficiency. The various operation conditions after. rebuilding are calculated in detail by the code for the change condition of the turbine. Some important conclusions are obtained according to the operation condition of the turbine.