600MW直接空冷机组汽轮机配汽控制策略优化

Optimization of turbine steam distribution control strategy for 600MW direct air-cooled unit

介绍了国产600 MW空冷机组复合阀和顺序阀配汽控制策略的优、缺点,分析了阀序优化前后机组瓦温、轴心轨迹、轴心位置等参数的变化情况,结合工程实例提出了解决方案,供其他电厂汽轮机配汽控制策略优化时参考。

The advantages and disadvantages of the steam distribution control strategy by combination valve and sequence valvefor 600MW air-cooled unit were introduced.The variations of the parameters,such as the bearing bush temperature,the locus of shaft center,the position of shaft center and others,of the unit before and after optimization of the valve acting sequence were analyzed.Combining with practical project,a solution was proposed,which can be used as reference for other power plants in optimization of steam distribution control strategy.