摘要
对给水管网系统中常见控件———阀门的流量特性进行了深入研究 ,建立了用流量调节强度衡量阀门流量调节性能的方法。通过实验 ,给出了闸阀固有流量调节强度随相对开度的变化规律 ,并指出阀门的最大调节能力取决于其自身结构。为衡量阀门在给水管网系统中的实际流量调节性能 ,提出了“虚拟阀门”和阀门“权重系数”的概念 。
Valves are one of control components in water distribution systems. The flow adjustment characteristic of them is studied. The approach to measuring the flow adjustment characteristic of valves is presented. The regulation on the primary flow adjustment intensity of gate valves varying with the relative opening degree is obtained by experiments, and it is shown that the maximum flow adjustment ability of valves depends on themselves structures. In addition, the concepts of the imaginary valve and the valve weight factor are given to measure the actual flow adjustment abilities of valves in water distribution systems.
出处
《流体机械》
CSCD
2003年第11期16-18,32,共4页
Fluid Machinery
基金
黑龙江省青年基金项目 (2 0 0 0 )
关键词
给水管网
阀门
相对开度
流量调节强度
虚拟阀门
权重系数
water distribution systems
valve
relative opening degree
flow adjustment intensity
imaginary valve
weight factor
