新型永磁定位自适应气囊外封堵装置设计

发布时间：2018-06-24 00:59

本文选题：永磁定位 + 泄漏　；参考：《油气储运》2017年12期

【摘要】：随着流程工业的发展,危险化学物料在储运过程中的泄漏事故频发,对漏点实施快速有效的处理处置至关重要。基于大型管道和储罐焊缝处复杂曲面区域的泄漏难以封堵的难题,提出一种采用永磁机构快速定位,并结合自适应气囊和导流泄压通道的快速封堵装置,实现了大曲率半径复杂曲面漏点的自适应应急封堵。通过分别建立柔性气囊封堵方法和常规顶压式封堵方法的有限元模型,对两种方法在大型储罐焊缝处漏点周围密封接触面的压力分布情况进行仿真分析。结果表明:采用柔性气囊封堵方法实施应急封堵处理时,在漏点周围形成较理想的均压接触区域,可以有效减少常规顶压封堵方法中橡胶因局部形变而导致的应力集中现象,具有较好的曲面封堵自适应性能,增强了应急封堵的稳定性与可靠性。
[Abstract]:With the development of process industry, leakage accidents of hazardous chemical materials occur frequently during storage and transportation, so it is very important to deal with leakage points quickly and effectively. Based on the difficulty of sealing the leakage in the complex curved surface area of the weld seam of large pipeline and storage tank, a fast sealing device using permanent magnet mechanism is proposed, which combines adaptive airbag and flow drain channel. Adaptive emergency plugging of complex surface leakage points with large curvature radius is realized. By establishing the finite element models of the flexible airbag sealing method and the conventional top pressure plugging method, the pressure distribution of the sealing contact surface around the leakage point at the weld seam of the large storage tank is simulated and analyzed. The results show that when the flexible airbag plugging method is used to implement the emergency plugging treatment, an ideal uniform pressure contact area can be formed around the leakage point, which can effectively reduce the stress concentration caused by the local deformation of rubber in the conventional top pressure plugging method. It has better adaptive performance of surface plugging and enhances the stability and reliability of emergency plugging.
【作者单位】：中北大学机械工程学院;
【基金】：山西省重点研发计划社会发展资助项目“安全生产灾害防治、食品安全技术及设备研究——危险源管道泄漏自适应安全修复装备关键技术研究”,201603D321117 山西省自然科学基金基础研究资助项目“煤粉智能制样系统及检测技术研究”,2013011026-2
【分类号】：TQ086.2

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