[1]约瑟夫保曼.钳式时差式超声波流量计990LD检漏系统[J].油气储运,1995,14(2):32-38.[doi:10.6047/j.issn.1000-8241.1995.02.014]
　Joseph Baulman.990 LD Leak Detection System——Ultrasonic Flowmeter of Clam- on and Differential Pressure Type OGST,1995,14(2):32-38[J].Oil & Gas Storage and Transportation,1995,14(2):32-38.[doi:10.6047/j.issn.1000-8241.1995.02.014]

点击复制

钳式时差式超声波流量计990LD检漏系统

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 14 期数: 1995年2期页码: 32-38 栏目: 仪表自控出版日期: 1900-01-01

Title:: 990 LD Leak Detection System——Ultrasonic Flowmeter of Clam- on and Differential Pressure Type OGST,1995,14(2):32-38

作者:: 约瑟夫·保曼; 美国康创公司

Author(s):: Joseph Baulman

关键词:: 检漏器; 时差; 管道检测; 流体界面; 探测器

Keywords:: leak detector; time difference; pipeline inspection; fluid interface

DOI:: 10.6047/j.issn.1000-8241.1995.02.014

摘要:: 钳式时差式流量计是利用宽幅电子束振子激励管道中的自然声波导管,以便产生一沿管壁轴向传播的声波。当该声波向前传播的时候,它以宽幅电子束的形式发出穿过液体的声能。这束电子到达管壁的另一侧并且沿此管壁传播,被传感器所接收。声能从上游方向发出时,到达对面传感器所需的传播时间,比从下游发出时到达对面传感器所需时间长,计量仪就是利用对这个时间差的测量来测量流动速度。钳式时差检漏系统是一系列安装的现场测量站,它除有时差流量计量仪和一台温度探测器外,还有无线或卫星通信设备。它能对管道流量的增加和管道热膨胀或收缩进行检验;在屏幕上可以进行实时界面检验,同时可以显示出每批输量的实际体积;对输送介质进行监控、不断地判断产品的类型和等级;确定泄漏源位置并发出警报;对清管器进行现场检验与报警。为了避免发出错误警报,系统具有自动使用条件监测功能。

Abstract:: Clam-on and differential pressure flowmeter produces sound waves travelling in axial direction along the pipe wall with the help of natural sound waves conduit in the pipeline excited by wide electronic beam vibrator. When the sound waves(travelling in axial direction) travel further on, they produce sound energy passing through liquid in the form of wide electronic beam, which travels along the pipe wall when reaching the wall opposite and received by the sensor. It takes sound energy longer to reach the opposite sensor when emitted from the upstream direction than from the downstream, just the time difference of which is made use of by the flowmeter in flowrate measurement. The time differential leak detection system (clam on) is refered to as the site detection station which is a series installation. It has not only the time differential flowmeter and a temperature detector but also radio/satellite as the telecommunication equipment. On top of the functions mentioned above, this system can also perform inspections on flowrate increase, thermal expansion and shrinkage; real time interface inspection can also be done on the screen; display the real volume of each batch flowrate; supervision of the medium being transported can be performed, continuely judging the type and class of the medium; define the leak location and give alarms if any; scrapers can be site inspected by the system, with alarms given if any. The system also has the function of condition monitoring automatically so that fault alarming can be avoided.

备注/Memo

收稿日期:1994-11-28。
作者简介:约瑟夫·保曼工程硕士,美国康创公司总裁,1971年推出第一台实用的钳式时差型超声波流量计,主要研究领域为钳式超声波流量计、超声波质量流量计、超声波石化管道检漏系统及管道管理系统。

更新日期/Last Update: 1900-01-01