摘要
针对清管器在经过含凹陷管段时的通过性研究鲜有涉及。为此,以ø168管道清管器为研究对象,分别建立其翻越凹陷管道的三维准静态和流固耦合仿真模型并进行对比,进一步再分别基于驱动皮碗接触摩擦力学和清管器动力学特性参数的变化规律,对清管器翻越管道凹陷过程的通过性进行定量分析。研究结果表明:清管器驱动皮碗在通过管道凹陷段时,运行速度不稳定可能会降低相应管段检测的准确率;清管器翻越凹陷过程的速度变化敏感性随过盈量的增加而增大;为提高清管器对于含凹陷管道的通过性能,ø168清管器皮碗过盈量应小于4%,密封皮碗夹持率应在55%~65%之间,皮碗结构分界面相对位置应不小于2%。研究结论可为清管器优化设计及工程应用提供理论指导。
The passing performance of pig when crossing dented pipeline sections has rarely been studied.Taking theø168 pipeline pig as an example,3D quasi-static and fluid-solid coupling simulation models of the pig crossing the dented pipeline were built respectively and compared.Then,based on the changes in the contact friction mechanics of the driving cup and the dynamic characteristic parameters of the pig,the passing performance of the pig crossing the pipeline dent was quantitatively analyzed.The results show that when the driving cup of the pig passes through the dented pipeline section,the unstable moving speed may reduce the inspection accuracy of the corresponding pipeline section.The speed change sensitivity of the pig crossing the dent increases with the increase of the wring.In order to improve the passing performance of the pig crossing the dented pipeline,the cup wring of theø168 pig should be less than 4%,the holding rate of the seating cup should be between 55%and 65%,and the interface of the cup structure should not be less than 2%.The study conclusions provide theoretical guidance for the optimization design and engineering application of pigs.
作者
王强
王安泉
韩庆
刘瑾
杨超
李强
刘畅
Wang Qiang;Wang Anquan;Han Qing;Liu Jin;Yang Chao;Li Qiang;Liu Chang(Technical Detection Center of Sinopec Shengli Oilfield Company;China Special Equipment Inspection and Research Institute)
出处
《石油机械》
北大核心
2024年第9期131-138,146,共9页
China Petroleum Machinery
基金
国家市场监督管理总局科技计划项目“管道内检测器通过性关键力学问题及评价体系研究”(2023MK210)
国家市场监督管理总局科技创新人才计划项目“面向复杂应用场景的油气管道高端智能检测技术装备”(KJLJ202320)。
关键词
清管器
管道凹陷
三维流固耦合
通过性
动力学特性
接触摩擦
pig
pipeline dent
3D fluid-solid coupling
passing performance
dynamic characteristics
contact friction
