真空水力输送管道的数值模拟研究  

Numerical simulation of vacuum hydraulic transportation pipeline

作　　者：李旻[1,2] 张向阳 王恩洁 范彬[2] 

机构地区：[1]山东华腾环保科技有限公司,山东济南250022 [2]中国科学院生态环境研究中心,北京100085

出　　处：《真空》2015年第2期66-69,共4页Vacuum

基　　金：国家水体污染控制与治理科技重大专项(2011ZX07301-003-05)

摘　　要：分析了不同类型真空排水系统水力输送的研究重点。讨论了真空水力输送管道的流动形态及其非恒定流问题。介绍了一种用于真空水力输送管道模拟的气液双流体模型。以室内真空排水系统中常见的真空污水收集单元为例进行了数值模拟,得到了管道中持液率和压强的瞬态变化过程,对结果做出分析,可为系统的优化设计及运行提供参考。Research emphases of hydraulic transportation in different types of vacuum sewerage systems were analyzed.Flow pattern and unsteady flow issue of vacuum hydraulic transportation pipeline were discussed.A liquid-gas two-fluid model dedicated to vacuum hydraulic transportation pipeline simulation was presented.A vacuum wastewater collection unit which is commonly used in indoor vacuum sewerage systems was taken as an example to illuminate the simulation procedure.The transient behavior of liquid holdup and pressure in pipelines was obtained.The simulation results were analyzed and could be considered in system optimization design and operation.

关 键 词：水力输送 真空排水系统 两相流 数值模拟 双流体模型 

分 类 号：TB79[一般工业技术—真空技术] TU992[建筑科学—市政工程]