An electrical conductivity probe method for measuring the local solid holdup in a slurry system
An electrical conductivity probe method for measuring the local solid holdup in a slurry system
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一种测量浆料系统局部固含率的电导率探针法
DOI：
10.1016/j.cej.2007.01.014
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发表时间：
2007-08-01
影响因子：
15.1
通讯作者：
Wang, Jinfu
中科院分区：
文献类型：
--
作者：
Liu, Malin;Wang, Tiefeng;Wang, Jinfu
发展了一种测量液-固或气-液-固浆体中局部固含率的电导探针法。用电场理论描述了液固混合物的电导率与局部固含率的关系。从该关系式，局部固含率可以由所测量的液-固混合物的电导率确定。对几种情况进行了验证。实验结果表明，电导探针法操作方便，在较宽的固含率范围内具有较好的准确性。通过在探头前端加装筛网以消除气泡的影响，将改进后的探头用于气液固三相体系中局部固含率的测量，取得了较好的结果。(c)2007 Elsevier B. V.保留所有权利。
An electrical conductivity probe method for measuring the local solid holdup in a liquid-solid or gas-liquid-solid slurry system was developed. The relationship between the conductivity of the liquid-solid mixture and the local solid holdup was described by the electric field theory. From this relationship, the local solid holdup can be determined from the measured conductivity of the liquid-solid mixture. Validation was carried out for several cases. The experimental results showed that the conductivity probe method developed in this work was convenient for use and had a good accuracy in a wide range of solid holdup in the liquid-solid system. By adding sieves at the front of the probe to eliminate the effect of gas bubbles, the modified probe was used to measure the local solid holdup in a gas-liquid-solid system and good results were obtained. (c) 2007 Elsevier B.V. All rights reserved.