摘要
未来水力式升船机的发展趋势是“超高升程、超大提升质量”,对控制阀门的要求很高。综合分析典型工业阀门的水力特性可知,固定式锥形阀较为适应水力式升船机的发展需要。为全面掌握该类阀门的水力特性,通过物理模型试验,对DN 150固定式锥形阀进行了系统全面的水力特性研究。成果表明,锥形阀过流能力较强、阀后流态简单、管壁压力分布稳定,但抗空化性能略差,为保证阀门及管道安全,应用需配合可靠的防空化技术。
The future development trend of hydro-driven ship lift(HDSL)is“super lifting height,super lifting weight”,which has higher requirements on control valve.The comprehensive analysis of the hydraulic characteristics of typical industrial valves shows that the fixed cone valve is more suitable for the development of HDSL.In order to fully grasp the hydraulic characteristics of this type of valve,a systematic and comprehensive hydraulic characteristics study on the DN 150 cone valve is carried out through physical model test.The results show that the discharge capacity of cone valve is larger,the flow pattern after valve is simpler,and the pressure distribution on pipe wall is stable,but the anti-cavitation performance is slightly poor.To ensure the safety of valve and pipeline,reliable anti-cavitation technology is required for the application of cone valve.
作者
王蛟
胡亚安
严秀俊
傅陆志丹
WANG Jiao;HU Yaan;YAN Xiujun;FULU Zhidan(Southwest Hydroengineering Research Institute for Waterway,Chongqing Jiaotong University,Chongqing 400016,China;Key Laboratory of Inland Waterway Regulation Engineering,Chongqing Jiaotong University,Chongqing 400016,China;Chongqing Xike Waterway Engineering Consulting Center,Chongqing Jiaotong University,Chongqing 400016,China;Nanjing Hydraulic Research Institute,Nanjing 210029,Jiangsu,China)
出处
《水力发电》
CAS
2021年第3期102-105,130,共5页
Water Power
基金
重庆市教委科技研究项目(KJQN202000722)
云南省院士基金项目(HNKJ17-H19)。
关键词
固定式锥形阀
物理模型试验
流量系数
空化数
流场结构
fixed cone valve
physical model test
flow coefficient
cavitation number
flow field structure
