本文根据佣效率的规律及基本要求,提出烧碱蒸发装置三个佣效率公式。同时比较并讨论了不同佣方程对佣效率公式的影响。 Based on the law of commission efficiency and basic requirements, this paper puts forward three formula for efficiency of caustic soda evaporation plant. At the same time, the influence of different employment equation on efficiency formula of domestic employment is compared and discussed.