基于自力控制阀的水锤控制  

Water hammer control based on self-operated control valve

作　　者：李志鹏[1,3] 张程钞 任羽皓 彭枫 严杰 LI Zhi-peng;ZHANG Cheng-chao;REN Yu-hao;PENG Feng;YAN Jie(School of Energy and Power Engineering,Changsha University of Science&Technology,Changsha 410114,China;Innovation Valve Co.,Ltd.,Tongling 244000,China;Hunan Province Extra Large Caliber Power Station Valve Engineering Research Center,Changsha 410007,China)

机构地区：[1]长沙理工大学能源与动力工程学院,湖南长沙410114 [2]英诺威阀业有限公司,安徽铜陵244000 [3]湖南省特大口径电站阀门工程技术研究中心,湖南长沙410007

出　　处：《长沙理工大学学报（自然科学版）》2020年第4期85-91,共7页Journal of Changsha University of Science and Technology:Natural Science

基　　金：湖南省重点研发项目(2017KG2182)。

摘　　要：针对泵站压力输水管路系统的停泵水锤,自力控制阀可有效削弱停泵水锤造成的管道升压,但却不能消除管道中的负压。以一实际工程为例,使用HAMMER软件的数值模拟方法对自力控制阀水锤防护方案进行比较分析,探讨将管道中的负压保持在安全范围内的方法。模拟中以自力控制阀为基础,联合空气阀和单向调压塔对水锤设备进行防护,使管道内水锤的正、负压都符合规范。模拟结果表明:自力控制阀加空气阀可取代单向调压塔在管路系统中的作用,该水锤防护方案可保证管路系统的安全,降低在停泵水锤防护上的资金投入。For the pump-stopping water hammer of the pressure pipeline system of the pump station,the self-operated control valve can effectively weaken the pressure rise of the pipeline caused by the pump-stopping water hammer,but cannot eliminate the negative pressure in the pipeline.In order to make the negative pressure of the pipeline reach the standard,a real project was taken as an example to compare and analyze the water hammer protection schemes of self-operated control valve by using the numerical simulation method of HAMMER software.In the simulation,the self-operated control valve was the basis,and the air valve and the one-way surge tank were combined to protective the water hammer e quipments,which made the positive pressure and negative pressure of the water hammer in the pipeline to reach the standard.The simulation results show that self-operated control valve plus air valve can replace the function of one-way surge tank in the pipeline system,the water hammer protection scheme can ensure the safety of the pipeline system,reduce the capital investment in the protection of pump-stopping water hammer.

关 键 词：停泵水锤 自力控制阀 空气阀 单向调压塔 数值模拟 联合防护 压力控制 

分 类 号：TK72[动力工程及工程热物理—流体机械及工程]