摘要
目前国内开展大口径活塞式调流阀的模型试验较少,滇中引水工程大理州鲁地拉工程应用DN2400电动活塞阀进行流量调节,针对DN500大口径活塞式调流阀开展模型试验,试验以原型阀门应用工况要求为基础,扣除管路沿程水头损失后换算出模型工况压差下所需的流量,以此推算出测试全行程所需要的试验台水泵参数,通过模型试验台转换安装两种型式水泵以满足测试要求。试验除进行阀门常规的流量特性测试外,还通过外部感官判断噪音和振动监测值的突变进行阀门汽蚀性能测试。结果表明,测试后的模型阀门流量系数、流阻系数、过流能力、汽蚀性能均满足工程设计要求。
At present,there are relatively few model tests conducted on large-diameter plunger regulating valves in China,DN2400 electric plunger control valve has been used to regulate the flow of water diversion system in Yunnan Dali Ludila Project.According to the DN500 large-diameter plunger regulating,model test was carried out based on the application requirements of the prototype valve.The required flow rate without head loss was calculated,The parameters of the test bench water pump required for the full test stroke was obtained.Test requirements was met through installing two types of pumps on the test bench.In addition to the valve flow characteristic test,the valve cavitation performance was tested by judging the sudden change of the monitoring value of noise and vibration by external senses.The test results show that the flow coefficient,flow resistance coefficient,flow capacity,and cavitation performance all meet the engineering design requirements.
作者
闫黎黎
卜新魁
刘俊华
李玲玲
苏正佳
戴斌
YAN Li-li;BU Xin-kui;LIU Jun-hua;LI Ling-ling;SU Zheng-jia;DAI Bin(Yunnan Institute of Water&Hydropower Engineering Investigation,Design and Research,Kunming 650021,China;General Institute of Water Resources and Hydropower Planning and Design,Ministry of Water Resources,Beijing 100120,China;VAG Water Systems(Taicang)Co.,Ltd.,Taicang 215400,China)
出处
《水电能源科学》
北大核心
2024年第7期147-150,共4页
Water Resources and Power
基金
国家重点研发计划(2021YFC3000205-06)
兴滇英才支持计划创新团队专项(2018HC024)。
关键词
活塞式调流阀
模型试验
初生汽蚀
性能测试
plunger regulating valve
model test
incipient cavitation
performance testing
