Liquid holdup measurement with double helix capacitance sensor in horizontal oil-water two-phase flow pipes  

双螺旋电容传感器水平油水两相流液相持率测量特性(英文)

作　　者：翟路生 金宁德 高忠科 王振亚 

机构地区：[1]School of Electrical Engineering & Automation, Tianjin University

出　　处：《Chinese Journal of Chemical Engineering》2015年第1期268-275,共8页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(50974095,41174109,61104148);the National Science and Technology Major Projects(2011ZX05020-006)

摘　　要：This paper presents the characteristics of a double helix capacitance sensor for measurement of the liquid holdup in horizontal oil–water two-phase flow. The finite element method is used to calculate the sensitivity field of the sensor in a pipe with 20 mm inner diameter and the effect of sensor geometry on the distribution of sensitivity field is presented. Then, a horizontal oil–water two-phase flow experiment is carried out to measure the response of the double helix capacitance sensor, in which a novel method is proposed to calibrate the liquid holdup based on three pairs of parallel-wire capacitance probes. The performance of the sensor is analyzed in terms of the flow structures detected by mini-conductance array probes.This paper presents the characteristics of a double helix capacitance sensor for measurement of the liquid holdup in horizontal oil–water two-phase flow. The finite element method is used to calculate the sensitivity field of the sensor in a pipe with 20 mm inner diameter and the effect of sensor geometry on the distribution of sensitivity field is presented. Then, a horizontal oil–water two-phase flow experiment is carried out to measure the response of the double helix capacitance sensor, in which a novel method is proposed to calibrate the liquid holdup based on three pairs of parallel-wire capacitance probes. The performance of the sensor is analyzed in terms of the flow structures detected by mini-conductance array probes.

关 键 词：Horizontal oil–water two-phase flow Liquid holdup measurement Double helix capacitance sensor Flow pattern 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TE312[自动化与计算机技术—控制科学与工程]