导程与偏心距对类椭圆型采油螺杆泵泄漏量的影响分析  

Analysis of the influence of lead and eccentricity on the leakage of elliptical type production screw pump

作　　者：韩道权[1] 凌健 叶卫东[1] 江旺权 Han Daoquan;Ling Jian;Ye Weidong;Jiang Wangquan(School of Mechanical Science and Engineering,Northeast Petroleum University,Heilongjiang Daqing,163318,China)

机构地区：[1]东北石油大学机械科学与工程学院,黑龙江大庆163318

出　　处：《机械设计与制造工程》2024年第12期107-111,共5页Machine Design and Manufacturing Engineering

摘　　要：鉴于对类椭圆型采油螺杆泵泄漏量研究较少的现状,分析了类椭圆型采油螺杆泵泄漏机理,并采用纯流场模拟运算方法,针对控制导程和偏心距为单一变量以及控制理论排量不变的情况,建立了类椭圆型采油螺杆泵仿真模型,分析导程和偏心距对泄漏量的影响,给出其与泄漏量的定量关系及影响规律。研究结果表明:保持偏心距不变,泄漏量与导程正相关,当偏心距增大时,泄漏量随着导程的增大而增幅变大;理论排量越大泄漏量越多,但相对泄漏量却减少,随着偏心距的增大,由导程转变为偏心距对泄漏量和相对泄漏量产生主要影响,且在偏心距为4.0 mm时,相对泄漏量最少,容积效率最高。In view of the lack of research on the leakage of elliptical oil production screw pump,the leakage mechanism of elliptical oil production screw pump is analyzed.Based on the pure flow field simulation operation method,the finite element models under different lead and eccentricity are established by controlling the lead and eccentricity as a single variable and the theoretical displacement unchanged,and the influence of lead and eccentricity on the leakage is analyzed,and the quantitative relationship and influence law between lead and eccentricity and leakage are given.The results show that the leakage is positively correlated with the lead when the eccentricity is kept constant,and the leakage increases with the lead when the eccentricity increases.The larger the theoretical displacement is,the more the leakage is,but the relative leakage decreases.With the increase of eccentricity,the change from lead to eccentricity has a major impact on the leakage and relative leakage,and the relative leakage is the least and the volumetric efficiency is the highest near the eccentricity of 4.0 mm.

关 键 词：类椭圆型 采油螺杆泵 导程 偏心距 泄漏量 

分 类 号：TE933[石油与天然气工程—石油机械设备]