摘要
起伏管道在充水排气过程中极易出现气塞现象,针对目前气塞形成及演变特性研究缺乏、气液两相耦合流动机理不明确等问题,设计并建造了一套可大范围调节管路倾角范围(0°~30°)的含气塞管道充水排气模拟试验环路系统,包括供水系统、测试管路系统、倾角调节系统、排水系统、摄像系统和数采系统。试验结果表明,该系统可用于研究起伏管道充水排气过程中管内气塞形成和发展过程中的气液两相流动特性。
Air-lock-entrapped phenomenon is easy to occur in the process of water filling and air exhaustion of the undulating pipeline. A test loop system for the simulation of the entrapped air movement with a wide range of inclination angle( 0° ~ 30°) was designed and constructed in view of the lack of research on formation and evolution characteristics of air-lock and the unclear flow mechanism of gas-liquid two-phase coupling. The test system includes a water supply subsystem,a test piping subsystem,an inclination-angle adjustment subsystem,a drainage subsystem,a camera subsystem and a data measurement and acquisition subsystem. The test results on the loop show that it can be used for in-depth study of gas-liquid two-phase flow characteristics during the formation and development of the entrapped airlock.
引文
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