化学工程2012，Vol.40Issue(12)：65-69,5.DOI:10.3969/j.issn.1005-9954.2012.12.016
利用锥形孔板测量气液二相流量
Gas-liquid two-phase flow measurement with cone orifice plate
周云龙 1张全厚 1辛凯1
作者信息
- 1. 东北电力大学能源与动力工程学院,吉林吉林132012
- 折叠
摘要
Abstract
Based on the homogenous-phase mode considering slip ratio, using a device combined straight tube and a modified anti-blocking orifice plate which can reduce permanent pressure loss and measure gas-liquid two-phase flow,the factors of p and △p1-2/△p3-4 which affect the dryness of gas-liquid two-phase flow were derived by using Bernoulli equation and continuity equation. So it can obtain dryness by using support vector machine (SVM) to predict it. The relative error of dryness is below 3.6% ,and the relative error of the overall mass flow is below 8.3% based on Lin model. So it can only apply orifice plate to measure dryness and mass flow, and the calibration for discharge coefficient of cone orifice and the equation of parameter θ in Lin model were obtained by experiment. It concludes that θ is an important factor affecting the Lin model measurement error.关键词
气液二相流/干度/流量/测量Key words
gas-liquid two-phase flow/ dryness/ flow/ measurement分类
数理科学引用本文复制引用
周云龙,张全厚,辛凯..利用锥形孔板测量气液二相流量[J].化学工程,2012,40(12):65-69,5.
