摘要
在分析现有水下闸阀设计方法存在不足的基础上,综合考虑水下闸阀运动特性以及实际生产工况对摩擦力负载的影响,以某水下闸阀为例,提出一种基于阀门开度的水下闸阀摩擦力负载建模方法.采用包括阀门局部阻力和沿程阻力损失、工作水深等数据,辨识出阀板上下游之间的压差,从而达到模型修正的目的.与试验数据相比,基于阀门开度的摩擦力负载模型能更准确地反映阀门运动对负载的影响以及预测水下闸阀的动态特性,从而为高可靠性的水下闸阀及执行机构优化设计和制造提供理论依据.
In order to study the effects of valve opening,pressure loss coefficient and operating depth on the frictional load,the dynamic frictional load model was investigated using both theoretical and empirical method.In this paper,a subsea gate valve was tested.Results have shown that the valve opening is the key control parameter for minor loss coefficient and frictional load.At low valve opening,increasing valve opening will decrease the frictional load.With further increase,the frictional load tends to zero.The methodology performs better than the traditional method.It can be used to model the dynamic frictional load based on the complex valve movements and can be potentially applied in practice.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第10期6-9,共4页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
湖北省重大科技支撑计划资助项目(2014BAA022)
关键词
水下闸阀
阀门开度
压力损失
动态
摩擦力负载
subsea gate valve
valve opening
pressure lose
dynamic
frictional load
