电潜单螺杆泵设计的新方法  

New Design Method for Electric Submersible Single Screw Pump

作　　者：王人成[1] 

机构地区：[1]中国石油辽河油田公司特种油开发公司,辽宁盘锦124010

出　　处：《中外能源》2013年第4期59-62,共4页Sino-Global Energy

摘　　要：电潜单螺杆泵广泛应用于稠油、高凝油、高含蜡油、高含砂油及高含气油等特种油藏开采作业中。在影响单螺杆泵采油效果的各种因素中,加工工艺是首要因素。使用摆线型及旋弦线等方法设计出来的单螺杆泵在实际生产应用中经常出现封闭性不好等缺点。为了优化单螺杆泵的设计,提出了使用三角函数和式来表征衬套和转子曲线的新方法。使用微分几何方法推导出了衬套和转子方程中三角函数和式系数所满足的多元方程组,提出了求解该方程组的准则和方法。该方程组含有多个可以调整的自由参数,通过调整这些参数达到优化设计的目的。给出了具体算例,求取了转子参数方程和衬套参数方程,并绘制了转子曲线和衬套曲线。算例的结果证明该方法有效。生产实际应用表明,使用本文新方法优化设计的单螺杆泵可以最大限度地提高衬套与转子之间的封闭性。Electric submersible single screw pump is widely applied to the exploitation of special oil reservoirs with crude oil,tar oil,high-wax-content oil,high-sand-content oil and high-gas-bearing oil.Processing technology is the most important factor among those influencing factors of production effect of the single screw pump.The single screw pump designed by the methods of cycloid and rotary chord line always has the shortcoming of poor sealing property in the actual production.In order to optimize the design of the single screw pump,a new method of trigonometric function sum is proposed to characterize the liner and rotor curve.Differential geometry method is applied to derivation of the multivariate equation set of the factor of the trigonometric function sum in the liner and rotor equations.Principle and method for solution of this equation set is proposed.Many adjustable free parameters are in the equation set that can make the goal of optimization design achieve.Case for computation is given.Parameter equations of the rotor and liner are solved and curves of them are drawn.The result of the case proves the method effective.Applica tion results show that the optimized single screw pump by new method in this paper can enhance the sealing property between the liner and the rotor maximally.

关 键 词：螺杆泵 齿面曲线 转子 衬套 设计方法 三角函数 参数方程 

分 类 号：TE933.3[石油与天然气工程—石油机械设备]