1000 MW超超临界燃煤发电机组汽机运行层标高的设计优化

汽机运行层标高不应是一个固定值。汽机运行层标高的设计优化要考虑主厂房造价、汽机岛凝汽器土建基础造价、循环水泵扬程与容量及其造价、循环水管的长度及其造价、循环水管的运行阻力及运行经济性等要素的综合影响。以华能某电厂1 000MW超超临界机组为例优化设计, 使运转层标高由原17 m 降低至15.5m, 达到基建投资少、机组运行经济的效果。

Design Optimization of 1000 MW USC Coal-fired Unit Turbine Operating Floor Elevation

Turbine operating floor elevation should not be a fixed value.Its design optimization should take into account main workshop cost,turbine island condenser foundation construction cost,circulating water pump lift and capacity and costs,circulating water pipe length and cost,circulating water pipe operating resistance and economy,etc.Design optimization is carried out to a Huaneng-owned power plant 1 000 MW USC unit.Results show that operating floor elevation is reduced to 15.5 m from 17.7 m,resulting in less cost and more economy operation.