调节球阀流量特性及口径计算

对于密闭输送的长输管道，调节阀的选型和口径计算合理与否，直接关系到调节品质的优劣和水击控制的效果。分析了长输管道调节阀的工作流量特性以及球阀类型，结合输油工艺提出了计算方法，并进行了实例说明。对长输管道调节阀的选型和计算具有指导意义。

The Flow Rate Properties of Ball Valve and its Bore Calculation

For the long distance tight pipeline,the model selection and resonable bore calculation of ball valve directly affect the control character and the effectiveness of controlling water hammer. The analysis on the flow rate properties of ball valve has been made,and the calculating method has been given according to the transportation process,the computational examples have also been provided,which are very helpful to the model selecting and bore calculating of ball valve.