| 螺杆泵内部压力分布规律研究 |
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| 引用本文： | 叶卫东,郭玉双,杜秀华,宋玉杰. 螺杆泵内部压力分布规律研究[J]. 科学技术与工程, 2009, 9(11) |
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| 作者姓名： | 叶卫东 郭玉双 杜秀华 宋玉杰 |
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| 作者单位： | 大庆石油学院机械科学与工程学院,大庆,163318;大庆油田有限责任公司储运销售分公司,大庆,163712 |
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| 基金项目： | 黑龙江省自然科学基金 |
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| 摘 要： | 利用有限元方法建立螺杆泵二维模型,分析螺杆泵压力传递规律,计算螺杆泵在不同压差下的接触压力,得出临界接触压力曲线.利用临界接触压力曲线分析螺杆泵内部的压力分布规律.结果表明:螺杆泵密封腔之间的接触压力随着密封腔之间压差的增加而增加,但接触压力比压差增加速度慢,存在一个临界接触压力值;不同内压力的密封腔之间的临界接触压力构成了临界接触压力曲线,随着内压力的增加临界接触压力减小;螺杆泵内部各密封腔压力值沿着螺杆泵轴向从吸入口到排出口逐渐增加,增加速度逐渐减小,最终达到一个最大值,即此螺杆泵的最大压力值.
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| 关 键 词： | 螺杆泵 临界接触压力曲线 压力分布规律 |
Study on Pressure Law Inside of the Progressive Cavity Pump |
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| YE Wei-dong,GUO Yu-shuang,DU Xiu-hua,SONG Yu-jie. Study on Pressure Law Inside of the Progressive Cavity Pump[J]. Science Technology and Engineering, 2009, 9(11) |
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| Authors: | YE Wei-dong GUO Yu-shuang DU Xiu-hua SONG Yu-jie |
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| Affiliation: | School of Mechatronics Engineering;Daqing Petroleum Institute;Daqing 163318;P.R.China;Storage and Sales;filiale of Daqing Oil Field Company Limited1;Daqing 163712;P.R.China |
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| Abstract: | Based on the Finite Element Analysis method,the model of the progressive cavity pump was established,the pressure transfer law of progressive cavity pump was analyzed and the contact pressure of different pressure difference was calculated,which obtained the critical contact curves.The inner pressure distribution rules were studied by the critical contact pressure curves,and the results indicated that with the increase of seal cavity pressure difference,the contact pressure increased but the velocity increa... |
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| Keywords: | progressive cavity pump critical contact pressure curve pressure law |
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