摘要
根据ASTM F 1802—2010《过流阀性能的测试方法》的要求设计了过流阀的试验系统,分析了过流阀试验过程中不同介质条件下关闭流量的关系,并用流场分析的方法计算阀门的介质升力随阀瓣开启高度的变化规律。对应用阀门升力变化曲线图设计阀瓣的初始开启高度和弹簧刚度的方法进行了分析,通过试验研究了弹簧刚度对阀门关闭特性的影响。结果表明,应用阀门升力变化曲线图设计阀瓣初始开启高度和弹簧刚度的方法不仅可行,而且能够大幅缩短阀门的研制周期。
According to the requirement of ASTM F 1802—2010 Standard Test Method for Performance Testing of Excess Flow Valves standard,the valve＇s test system is designed and the trip flow relationship of different test results in different media is analyzed.The valve＇s liquid lift variety of high displacement is computed by the analysis of flow field.The design method of the first high displacement and spring rate is theoretically analyzed by the drawing of liquid lift variety.The influence of spring rate on the trip characteristic is analyzed by the valve＇s test.In conclusion the design method of the valve spring rate according to the variation relationship between lift and high displacement is feasible.In addition,the method can reduce the manufacture time.
出处
《石油化工设备》
CAS
2015年第5期44-48,共5页
Petro-Chemical Equipment
关键词
过流阀
升力
弹簧刚度
分析
excess flow valve
lift
spring rate
analysis
