| 摘要: |
| 为了进一步探讨螺杆泵在油气田开发中出现的高温破坏问题,基于汽车滑移理论，采用单向解耦法,以GLB500 和DGLB500螺杆泵为例分析定+温度场分布规律及散热性能，研究不同过盈最、转速下的定子增温。结果表明:螺 杆泵定子温度场沿长轴对称分布,最高温度点位于定子橡胶衬套厚壁中心处，考虑摩擦生热时,最高温度点沿短轴 方向向定子中心偏移;等噔厚螺杆泵散热性能较好且比较均匀，常规螺杆泵长轴方向散热能力优于短轴方向；不考 虑摩擦生热时，定子增温与转子转速正相关，随定转子过盈铖的增加呈拋物线趋势增加;在双热源作用下,定子增温 随过盈域和转速急剧增加,并目.等壁厚螺杆泵表观电为敏感。 |
| 关键词: 螺杆泵 单向解耦法 滞后牛热 定子温度场 数值模拟 |
| DOI：10.3969/j.issn.1673-5005.2012.03.022 |
| 分类号:TE 355.5 |
| 基金项目:国家重大专项课题(2011 Zx05011 -003) |
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| Numerical simulation on unsteady temperature field of progressive cavity pump stator with double heat source |
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XUE Jian-quan1,ZHANG Guo-dong1,WU Shen-qu1,LI Min-hui1,GU Guo-jian1,YANG Feng2
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(1.School of Petroleum Engineering in China University of Petroleum, Qingdao 266580, China ;2. Dongxin Oil Production Plant, Shengli Oilfield，Dongying 257094, China)
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| Abstract: |
| In order to investigate the problem of high-lempemture destruction in oil and gas field production, based on the auto-mobile sliding theory, a single direction decoupling solution strategy was proposed for determining temperature distribution and heat dispersion performance in the stator of the GLB500 and DGLB500 pumps. The stator temperature increase was analyzed over different interference, rotational speed and friction coefficient. The results show that the stator temperature field of progressive cavity pumps distributes symmetrically along the long axis, and the highest temperature point locates at the center of the thick wall of stator rubber bushing. When the friction heal is considered, the highest temperature point shifts to the stator center along the direction of the short axis. The heat dispersion performance of the iso-wall thickness progressive cavity pump is good and more uniform. And the dispersion performance of the conventional progressive cavity pump in long axis is belter than the short one. When the friction heat is neglected，the temperature increase of stator correlates with rotational speed positively, it increases in parabolic trend along with interference. Under the effect of double heat sources, the temperature increase of stator rises sharply with interference and rotational speed, moreover, the iso-wall thickness progressive cavity pump is more sensitive to them. |
| Key words: progressive cavity pumps one direction decoupling solution strategy heat production due to lagging stator temperature field numerical simulation |
