悬浊液透光脉动颗粒在线检测技术及其应用(待续)——透光脉动颗粒检测理论

An On-Line Monitoring Technique for Transmitted Light Fluctuationin High-Turbidity Water and Its Application——A Theory of Monitoring for Transmitted Light Fluctuating Particles

在国外现有研究的基础上 ,从理论上推导出了悬浊液透光率脉动值的解析式。对该解析式的进一步研究表明 ,悬浊液透光率脉动值VR 或R(R=VR/V)主要与悬浊颗粒大小有关 ,颗粒个数浓度N对VR 或R的影响较小 ,悬浊颗粒凝聚时透光率脉动值总是增大的。给出了单一粒径组成和具有一定粒径分布的悬浊液 ,根据其透光率脉动值计算颗粒平均粒径的解析式。

Based on the present research abroad,an analytical formula for transmitted light fluctuation(TLF) value of suspension liquid is deduced theoretically. Further research into this analytical formula shows that the TLF value of V R or R(R=V R/V)of suspension liquid is primarily related to the sizes of suspended particles while the concentration of the number of the particles has less influence on V R or R,and that TLF value always increases when suspended particles coagulate.An analytical formula is given to calcuate the average value of the size of the particles of a given suspension liquid having single particle size composition and certain distribution of particle size on the basis of its TLF value.