有杆抽油泵固定阀阀球运动规律模拟分析

Simulation Analysis of the Motion Law of Standing Valve Ball of the Rod Pump

在常规有杆抽油泵流体进泵过程中,固定阀阀球的运动规律是影响固定阀开启程度、过阀流量以及流体进泵时间的主要因素之一。详细描述分析固定阀阀球的运动规律,对有杆抽油泵进泵流量和开启程度的准确计算具有十分重要的意义。针对以往的固定阀阀球运动规律模型在对阀球受力分析以及求解过程中存在的不足,综合考虑泵阀开启和关闭阶段对阀球运动的影响,对阀球的受力和运动特性进行了全面分析,建立了完善的固定阀阀球运动规律模型。利用该模型可以模拟分析不同因素对阀球运动规律的影响,并对泵阀开启和关闭阶段出现的滞后现象进行了详细的计算分析。

In the process of sucker rod pump flow into the pump, the motion law of intake valve ball is one of the dominant factors impacted on the opening degrees, the fluid rate of pass through vale and the time of fluid into the pump. How to describe the law of motion of the standing valve ball and opening degrees in detail is a very important issue. Considering the shortcomings of valve ball mechanical analysis and solution process in conventional standing valve ball motion law model, and the effect of the stage to turn on and off of valve on the valve ball movement, the model of standing valve ball motion law is established to simulate the impact of different factors on the law of motion of the valve ball. The opening degrees and the turning on and off stage hysteresis are detailed and computationally analyzed.