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本文在分析给水净化工艺中混凝剂投加量规律的基础上,提出了混凝剂最优投加量的理论,建立起七个基本假设。这样就可以用数理统计方法,从理论上推导出混凝剂最优投加量的前馈与后馈数学模型公式,即混凝剂最优投加量数学模型。并根据哈尔滨市供水三厂二年多生产中混凝剂投加量的数据,计算出该水厂前馈与后馈的实用数学模式,并把该实用模式用于13万m~3/d供水系统微机控制中。
In this paper, based on the analysis of the law of dosage of coagulant in water purification process, the theory of optimum dosage of coagulant is put forward, and seven basic assumptions are established. In this way, mathematical equations can be used to theoretically derive the feedforward and feedback mathematical model formula for the optimum dosage of coagulant, ie, the optimal dosage of coagulant mathematical model. According to the data of the dosage of coagulant in the second year of production of Harbin No. 3 Water Supply Plant, the practical mathematical model for feedforward and feed-back of the plant is calculated, and the utility model is used for 130,000 m 3 /d. Water supply system microcomputer control.