Performance of a Horizontally Mounted Venturi in Low-pressure Wet Gas Flow  

作　　者：方立德 张涛 

机构地区：[1]Key Laboratory for Process Measurement and Control, School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China

出　　处：《Chinese Journal of Chemical Engineering》2008年第2期320-324,共5页中国化学工程学报（英文版）

基　　金：the National High Technology Research and Development Program of China(2006AA04Z167,2007AA04Z180)

摘　　要：The performance of a Venturi tube used in wet gas flow have been explored mainly under higher-pressure condition, but very often, low-pressure test exists in some oil and gas fields in Tianjin Dagang Oil and Gas Field in China. In this study, the performance of horizontally mounted Venturi meters in low-pressure wet gas flow is discussed. Three 50 mm Venturi meters were tested systematically, with fl values of 0.4048, 0.55 and 0.70, the opera- tion pressure of 0.15 MPa, 0.20 MPa, 0.25 MPa, the gas densiometric Froude number from 0.6 to 2.0, the modified Lockhart-Maretinelli parameter from 0.0022 to 0.06, and the ratio of the gas liquid mass flow rate from 0.5 to 0.99. The effects of modified Lockhart-Maretinelli parameter, pressure, gas densiometric Froude number, diameter ratio, and gas-liquid mass flow rate ratio to the Venturi tube are analyzed with new independent data. Furthermore, low-pressure performance was compared with that under high pressure.在湿气流动使用的文丘里流量计的表演主要在高压力的状况下面被探索了，但是很经常，低压的测试在中国在天津 Dagang 油和天然气田在一些油和天然气田存在。在这研究，在低压的湿气流动的水平地装的文丘里速度计的表演被讨论。三 50 公里文丘里速度计系统地被测试，与 0.4048 ， 0.55 和 0.70 的β 价值， 0.15 MPa 的操作压力， 0.20 MPa ， 0.25 MPa ，从 0.6～2.0 的煤气的 densiometric 弗鲁德数字，从 0.0022～0.06 的修改 Lockhart-Maretinelli 参数，并且从 0.5～0.99 的煤气的液体团流量的比率。修改 Lockhart-Maretinelli 参数，压力，煤气的 densiometric 弗鲁德数字，直径比率，和到文丘里流量计的煤气液体的集体流量比率的效果与新独立数据被分析。而且，低压的性能在高压下面与那相比。

关 键 词：gas-liquid two phase flow wet gas metering Venturi meter over-reading 

分 类 号：O6[理学—化学]