双滚筒式超长冲程抽油机的设计与评价
发布时间：2018-10-25 19:25
【摘要】：本文介绍和分析了常规游梁式抽油机和其改进型在油田的实际使用中存在着平衡效果差,能耗高、抽油效率低下等问题,阐述了长冲程抽油机有着冲程更长,传动效率更高,易于调节平衡,设备重量轻,电机能耗低等诸多优点,并介绍了国内外长冲程抽油机的分类和几种在用产品,又概括了它的发展趋势。本课题的研究主要包括:根据实际工作条件和需求来确定抽油机的性能参数,并提出超长冲程抽油机的运动设计方案;通过对抽油机的悬点在上、下冲程过程的运动分析,确定抽油机悬点位移、悬点速度、悬点加速度和数学表达式;通过对悬点载荷的分析,确定悬点静态和动态载荷的变化,根据悬点静态和动态载荷的变化结果,绘制出抽油机示功图;根据抽油机负载的大小,确定抽油机传动系统的动力参数。采用变频调速器作为抽油机的换向装置控制电机正反转运动,实现抽油机的上、下冲程,并使用重力势能平衡的方法达到抽油机的整体平衡效果,使电机的上下冲程功率平衡;根据抽油机上冲程所需要的最大功率和配重计算得到所需电机功率,确定电机和变频调速器的型号,然后确定V带的速度、根数和型号,计算出大小皮带轮的宽度。传动装置的设计采用双柱齿轮减速器,传动过程为纯机械传动,并校核主要装置的强度,然后根据上述计算对减速器轴、滚筒轴和配重滚筒轴进行设计,并对轴上键和减速器输出轴进行校核。最后确定了抽油机综合评价指标集,利用层次分析法得到了不同评价指标的加权系数,应用模糊评价方法对抽油机进行了综合评价。
[Abstract]:This paper introduces and analyzes the problems of poor balance effect, high energy consumption and low pumping efficiency in the practical application of conventional beam pumping units and their improved ones in oil fields, and expounds that long stroke pumping units have longer stroke and higher transmission efficiency. It is easy to adjust the balance, the equipment weight is light, the motor energy consumption is low and so on many advantages, and introduces the domestic and foreign long stroke pumping unit classification and several kinds of in service products, also summarizes its development trend. The research of this subject mainly includes: according to the actual working conditions and requirements to determine the performance parameters of the pumping unit, and put forward the ultra-long stroke pumping unit motion design; The displacement, velocity, acceleration and mathematical expressions of suspension point of pumping unit are determined by analyzing the movement of the suspension point in the upper and lower stroke process of the pumping unit. Through the analysis of suspension load, the change of static and dynamic load of suspension point is determined. According to the change result of static load and dynamic load of suspension point, the indicator power diagram of pumping unit is drawn. According to the load of the pumping unit, the dynamic parameters of the drive system of the pumping unit are determined. The variable frequency governor is used as the reversing device of the pumping unit to control the forward and backward movement of the motor, to realize the upper and lower stroke of the pumping unit, and to achieve the overall balance effect of the pumping unit by using the method of gravity potential energy balance, and to balance the power of the motor up and down. According to the maximum power and counterweight of the stroke on the pumping unit, the required motor power is obtained, and the type of motor and variable frequency governor is determined, then the speed, root number and type of V-belt are determined, and the width of the large and small pulley is calculated. The transmission device is designed with double column gear reducer, the transmission process is pure mechanical transmission, and the strength of the main device is checked. According to the above calculation, the reducer shaft, the roller shaft and the counterweight roller shaft are designed. The key on the shaft and the output shaft of the reducer are checked. Finally, the comprehensive evaluation index set of pumping unit is determined, the weighted coefficients of different evaluation indexes are obtained by AHP, and the comprehensive evaluation of pumping unit is carried out by using fuzzy evaluation method.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE933.1
，
本文编号：2294604
[Abstract]:This paper introduces and analyzes the problems of poor balance effect, high energy consumption and low pumping efficiency in the practical application of conventional beam pumping units and their improved ones in oil fields, and expounds that long stroke pumping units have longer stroke and higher transmission efficiency. It is easy to adjust the balance, the equipment weight is light, the motor energy consumption is low and so on many advantages, and introduces the domestic and foreign long stroke pumping unit classification and several kinds of in service products, also summarizes its development trend. The research of this subject mainly includes: according to the actual working conditions and requirements to determine the performance parameters of the pumping unit, and put forward the ultra-long stroke pumping unit motion design; The displacement, velocity, acceleration and mathematical expressions of suspension point of pumping unit are determined by analyzing the movement of the suspension point in the upper and lower stroke process of the pumping unit. Through the analysis of suspension load, the change of static and dynamic load of suspension point is determined. According to the change result of static load and dynamic load of suspension point, the indicator power diagram of pumping unit is drawn. According to the load of the pumping unit, the dynamic parameters of the drive system of the pumping unit are determined. The variable frequency governor is used as the reversing device of the pumping unit to control the forward and backward movement of the motor, to realize the upper and lower stroke of the pumping unit, and to achieve the overall balance effect of the pumping unit by using the method of gravity potential energy balance, and to balance the power of the motor up and down. According to the maximum power and counterweight of the stroke on the pumping unit, the required motor power is obtained, and the type of motor and variable frequency governor is determined, then the speed, root number and type of V-belt are determined, and the width of the large and small pulley is calculated. The transmission device is designed with double column gear reducer, the transmission process is pure mechanical transmission, and the strength of the main device is checked. According to the above calculation, the reducer shaft, the roller shaft and the counterweight roller shaft are designed. The key on the shaft and the output shaft of the reducer are checked. Finally, the comprehensive evaluation index set of pumping unit is determined, the weighted coefficients of different evaluation indexes are obtained by AHP, and the comprehensive evaluation of pumping unit is carried out by using fuzzy evaluation method.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE933.1
，
本文编号：2294604
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