To solve the gypsum rain phenomenon in the wet desulfurization process of thermal power plant with no GGH,Shenhua Wanzhou Electric Power Company designs and operates by the desulfurizing absorption tow-er internal flow adjustment,structure setup,flue gas velocity,boundary conditions setting,chimney structure opti-mization etc. ,largely reduce the gypsum rain phenomenon of the wet desulfurization.%为了解决火力发电厂无GGH湿法脱硫工艺出现的“石膏雨”问题，神华万州发电厂从脱硫吸收塔内部流场调整、结构设置、烟气流速、边界条件设定、烟囱结构优化等方面进行设计和优化运行，在很大程度上减少了湿法脱硫的“石膏雨”现象的发生。
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