新型封隔器胶筒防突装置的设计及分析

发布时间：2018-04-15 19:52

  本文选题：封隔器胶筒 + 完全防突　； 参考：《工程设计学报》2017年03期

【摘要】：为了防止封隔器胶筒在大间隙和高压差工况下肩部突出,提高封隔器的封隔能力,针对传统防突装置的不足设计了一种伞式完全防突装置。首先,使用有限元软件对无防突装置、安装部分防突装置和使用完全防突装置的胶筒在封隔大间隙工况下的密封性能进行了对比分析,发现使用完全防突装置时胶筒的最大Von Mises应力最小、封隔能力最强。其次,介绍了伞式防突装置的结构和工作原理,对其机构进行了分析。同时设计了一款适用于Y111-150型封隔器胶筒的伞式防突装置,验证了机构不会发生自锁,各零部件之间也无干涉发生。当防突装置翼板展开防突时,连杆两端处的销钉受力最大,此处易发生失效;当防突装置用于大间隙、高压差封隔时可适当增加这2处销钉的直径和连杆的厚度。研究结果对封隔器防突装置的设计具有一定参考意义。
[Abstract]:In order to prevent the Packer cylinder from protruding under the condition of large gap and high pressure difference, and to improve the sealing ability of Packer, an umbrella type complete outburst prevention device was designed in view of the deficiency of traditional anti-outburst device.Firstly, the sealing performance of the rubber cylinder with no outburst prevention device, partial anti-outburst device and complete anti-outburst device under the condition of large clearance sealing is compared and analyzed by using finite element software.It is found that the maximum Von Mises stress is the smallest and the sealing ability is the strongest.Secondly, the structure and working principle of umbrella-type anti-outburst device are introduced, and its mechanism is analyzed.At the same time, an umbrella anti-outburst device suitable for Y111-150 Packer cylinder is designed, which verifies that the mechanism will not occur self-locking and there is no interference between parts and components.When the flange of the anti-outburst device is extended, the pin force at the two ends of the connecting rod is the largest, and the failure is easy to occur here, and when the anti-outburst device is used in the large gap, the diameter of the pin and the thickness of the connecting rod can be appropriately increased when the high-pressure differential seal is used.The research results have some reference significance for the design of Packer outburst prevention device.
【作者单位】： 西南石油大学机电工程学院;西南石油大学石油天然气装备教育部重点实验室;中国石油集团川庆钻探工程有限公司井下作业公司;
【基金】：国家自然科学基金面上项目(51274171) 教育部重点实验室项目(OGE201403-03) 四川省科技计划项目(2015JY0078,2015SZ0010-06) 四川省教育厅科研项目(14ZA0042)
【分类号】：TE931.2
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本文编号：1755536