流体机械

2020, v.48;No.576(06) 38-43+50

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重力流输水管路阀门调节与水锤控制分析
Analysis on Valve Regulation and Water Hammer Control of Gravity Flow Pipeline

王祺武;李志鹏;朱慈东;李捷;
Wang Qiwu;Li Zhipeng;Zhu Cidong;Li Jie;School of Energy and Power Engineering,Changsha University of Science and Technology;Hunan Province Extra Large Caliber Power Station Valve Engineering Research Center;

摘要(Abstract):

随着长距离跨流域调水工程的逐渐增多,输水管道的安全问题也日益突出,其中水锤对长距离输水管道的危害很大,因而长距离输水工程中管线安全防护的研究变得刻不容缓,而重力流作为一种高效节能的输水方式,其安全性也应受到高度关注。通过实例计算,对调节阀门全开工况下的关阀水锤进行计算分析,采用不同的阀门关闭和阀门配置方式,对管路中的水锤压强进行改善,分析不同控制方式下对于水锤情况的改善效果,结果表明单阀、双阀以及三阀调节对于管路中水锤问题都有着出色的控制效果,为输水工程中的水锤控制问题提供了一定的指导意义。
With the gradual increase of long-distance cross-basin water transfer projects,the safety of water pipelines has become increasingly prominent.Long-distance water pipelines are seriously threatened by water hammer problems.Therefore,research on pipeline safety protection in long-distance water transportation projects has become an urgent task.As a highly efficient and energy-saving way of water delivery,the safety of gravity flow should also be highly concerned.Through the calculation of the example,the water hammer of the closed valve under the full open condition of the regulating valve was calculated and analyzed.And different valve closure and valve configuration were used to improve the water hammer pressure in the pipeline,and the improvement effect of water hammer under different control modes was analyzed.The results show that the single valve,double valve and three valve adjustment have excellent control effect on the water hammer problem in the pipeline,which is of a certain guiding significance for the water hammer control problem in the water delivery projects.

关键词(KeyWords): 输水管路;水锤;阀门调节;压力控制
water pipeline;water hammer;valve adjustment;pressure control

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基金项目(Foundation): 湖南省重点研发项目(2017KG2182);; 湖南省研究生科研创新项目(CX20190690)

作者(Author): 王祺武;李志鹏;朱慈东;李捷;
Wang Qiwu;Li Zhipeng;Zhu Cidong;Li Jie;School of Energy and Power Engineering,Changsha University of Science and Technology;Hunan Province Extra Large Caliber Power Station Valve Engineering Research Center;

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