论Rillieux第二原理及其应用(一)——蒸发系统热力方案用汽量的实用数学模型  

Investigation of the Rillieux Principle(Ⅱ)and Its Application(1)The Practical Mathematical Model for the Consumption of Steam in the System of Multiple-Effect Evaporation

作　　者：梁世平 

机构地区：[1]广东顺德糖厂

出　　处：《甘蔗糖业》1990年第5期38-43,共6页Sugarcane and Canesugar

摘　　要：应用Rillieux第二原理建立了蒸发系统热力方案用汽量的实用数学模型。通过对其分析讨论,得到:在蒸发系统用汽量最小的情况下,各效抽汁汽量的约束条件为W=sum from i to m[(E_i-e_i)i+e_i)和最小用汽量D_i=B-sum from ∑ to x[((n-i+1)/n·e_i];以及在最佳情况下,有各种抽汁汽组合的可能性,换句话说,即从m个罐中抽汁汽时,会有m-1个可变量;等重要结论。指出了Rillieux第二原理的适用范围。这为蒸发系统热力方案的设计、调整和优化控制提供了有效实用的理论依据。By means of the Rillieux principle(Ⅱ),a practical mathematical model of the system of multiple-effect evaporation(S.M.E.E.)is cbtained. By analysing the model,a restrictive condition of the withdrawal of vapors from multiple-effect can be expressed as the formula W=(?)[(E_i-e_i)i+e_i] in the condition of the minimal consumption of steam from the S.M.E.E and the minimal consumption of steam can be calculated by the formula D_t=B-(?)[(n-i+1)/n·e_i].There are possible combinations in various withdrawal of vapors from multipleeffect at the optimum case.In other words,there are m-1 variables when vapors are withdrawn from m effects. The available extent of the Rillieux principle(Ⅱ)is pointed out.The model will be a practical theory for the S.M.E.E.on the optimum control, design and modification.

关 键 词：糖厂 热力方案 数学模型 蒸发系统 

分 类 号：TS243.3[轻工技术与工程—制糖工程]