大型管道输水系统充水过程瞬变流研究进展

发布时间：2018-10-26 19:12

【摘要】：充水过程是大型管道输水系统在建成或检修后的第一道工作程序,其瞬变流特性对工程的安全运行具有直接影响。关于充水过程瞬变流的分析,目前国内外的研究主要集中在明渠、隧洞和倒虹吸等输水系统,而在有压管道输水系统中的充水瞬变流研究相对较少。本文讨论了管道充水过程瞬变流计算模型,分析了充水过程中可能出现的水柱分离及弥合现象所需要的计算方法,总结了用于充水过程水锤防护的空气阀计算模型及求解方法,指明了管道输水系统充水过程瞬变流研究前沿与发展方向。相关成果对管道输水系统的工程设计和优化运行具有参考价值。
[Abstract]:The process of water filling is the first working procedure of a large pipeline water conveyance system after completion or maintenance, and its transient flow characteristics have a direct impact on the safe operation of the project. As to the analysis of transient flow in water filling process, the research at home and abroad is mainly focused on open channel, tunnel and inverted siphon system, but there are few researches on the transient flow of water filling in pressurized pipeline water conveyance system. In this paper, the transient flow calculation model of pipeline filling process is discussed, and the calculation method of water column separation and closing phenomenon that may occur during water filling process is analyzed, and the calculation model and solution method of air valve used for water hammer protection during water filling process are summarized. The research frontier and development direction of transient flow during water filling process of pipeline water conveyance system are pointed out. The related results have reference value for the engineering design and optimal operation of pipeline water conveyance system.
【作者单位】：中国农业大学水利与土木工程学院;北京市供水管网系统安全与节能工程技术研究中心;清华大学热能工程系;
【基金】：国家自然科学基金(51779258)
【分类号】：TV134

【相似文献】