直接空冷机组汽轮机阻塞背压特性的计算研究

Research on Choked Back Pressure Calculation for the Unit with Air Cooled Condenser

直接空冷机组的阻塞背压特性与湿冷机组存在较大的差别,探讨直接空冷机组阻塞背压随负荷的变化规律。以一超临界、一次中间再热、单轴、二缸二排汽、直接空冷凝汽式汽轮机为例,给出了计算结果,并与湿冷机组作了比较。

The choked back pressure characteristic of the unit with air cooled condenser is very different with the unit with wet cooling technology,and the understanding of the choked back pressure performance change with operation load is important to guide the economic operation of the unit.An example was given for a super-critical,regenerative single-shaft,2-casing with 2-exhaust steam turbine generation unit with air cooled condenser.The calculation result was provided and compared with the result of the unit with wet cooling technology.