Wax deposition in oil wells seriously affects hydrocarbon production and causes inevitable economic losses. Especially in rodless pumping wells, due to the lack of the stirring effect of the sucker rod, the waxing of the tubing is more serious. According to the correlation law between flow velocity and wax deposition, a speed-increasing impeller wax prevention device was designed. Based on fluid dynamics, the influence of impeller geometry and equipment process parameters on wax deposition was studied, and the optimization design of the device was proposed. After that, CFD simulations were used to determine the structure parameters of the wax-proof device. The diameters of the impeller hub and rim are 34 mm and 60 mm, respectively; the axial length of the impeller is 42 mm; the number of blades is five; the rotation speed is 600 r/min. The inlet and outlet angle of the blade was designed based on the increasing ability of the impeller's speed. The head of the impeller is used as the basis for determining the distance of the paraffin preventer. Starting from the position prone to the wax deposition, place multiple wax-proof impellers in series in the wellbore. Comparing with traditional wax prevention methods, our experiments showed that this wax-proof device has a good function in wax prevention and improves the economic benefit of high waxy wells. This paper provides a new choice for wax-proof device.

油井中的蜡沉积会严重影响碳氢化合物的生产并造成不可避免的经济损失。特别是在无杆泵井中，由于缺乏抽油杆的搅拌作用，油管打蜡更加严重。根据流速与蜡沉积之间的相关规律，设计了一种提速叶轮防蜡装置。基于流体动力学，研究了叶轮几何形状和设备工艺参数对蜡沉积的影响，提出了装置的优化设计。之后，使用CFD模拟确定防蜡装置的结构参数。叶轮轮毂和轮缘的直径分别为34毫米和60毫米。叶轮的轴向长度为42毫米；叶片数为五个；转速为600 r / min。叶片的入口和出口角度是根据叶轮速度的增加能力而设计的。叶轮的头部用作确定石蜡防护剂距离的基础。从易于形成蜡的位置开始，在井眼中串联放置多个防蜡叶轮。与传统的防蜡方法相比，我们的实验表明该防蜡装置在防蜡方面具有良好的功能，并提高了高蜡井的经济效益。本文为防蜡装置提供了新的选择。在井眼中串联放置多个防蜡叶轮。与传统的防蜡方法相比，我们的实验表明该防蜡装置在防蜡方面具有良好的功能，并提高了高蜡井的经济效益。本文为防蜡装置提供了新的选择。在井眼中串联放置多个防蜡叶轮。与传统的防蜡方法相比，我们的实验表明该防蜡装置在防蜡方面具有良好的功能，并提高了高蜡井的经济效益。本文为防蜡装置提供了新的选择。