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The ultrasonic metering system in Trans-Uzbekistan Gas Pipeline is introduced with regard to its system composition,equipment installation,signal transmission,etc. based on its current development,specification, principle and structure. The system is composed of 4-channel ultrasonic flowmeter(USM),flow computer (FC),pressure transmitter(PT),temperature transmitter(TT)and gas chromatograph(GC). The signals from USM,PT,TT,GC are transferred to FC. The FC is employed to calculate the volumetric flow based on relevant parameters under standard condition. A couple of technical topics are analyzed and discussed, which provides a direction to the operation and maintenance of ultrasonic flowmeter in flowmeter range under standard condition,noise disturbance,pipe and gas cleaning,small flowrate disturbance,vibration,sound alert,backup shutdown,environment temperature,etc.
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作者简介:于栋,助理工程师,1982 年生,2007 年硕士毕业于清华大学材料科学与工程专业,现主要从事输气管道的计量管理工作。
电话:13813917825;Email:yudong_zy@petrochina.com.cn????????? (收稿日期:2010-04-12)