非能动管道爆破保护系统的整体设计与分析

发布时间：2018-06-06 13:42

本文选题：非能动保护 + 管道运输　；参考：《西华大学》2015年硕士论文

【摘要】：在管道运输中经常会发生管道爆破事故,为减少损失,降低危险,必须及时地关闭管道,来切断输送液体的通道。为此,本研究提出了非能动管道爆破保护系统,此系统是一种自力式的全自动保护装置。这个系统不需要外界能量来驱动,巧妙运用流体流动的能量使管道关闭。在管道修复后,可人力恢复管道的正常功能。此系统主要由球阀,感流器、液压缸、驱动齿轮及其控制阀组成,通过管线连接组成一个非能动系统,安装在各类运输管道中起保护作用。本文主要的研究内容为:(1)阐述了世界通用五大运输方式各自的优势、劣势和适用范围,重点介绍管道运输在国内外的重要作用。介绍了国内外传统的管道爆破保护系统原理方法,阐述了本课题研究的非能动管道爆破保护系统的工作原理和结构特点。(2)完成了非能动管道爆破保护系统的结构设计,主要是对非能动管道爆破系统的主阀、液压缸、差流可调梭阀和清管系统通行阀进行详细设计、计算和校核,并在Creo中建立非能动管道爆破保护系统的三维模型。(3)对非能动管道爆破保护系统的关键零部件进行了ANSYS有限元分析,主要是对差流可调梭阀流场有限元分析以及整个系统的流场有限元分析。管道爆炸问题一直困扰世界,现有技术生产多种管道爆破保护装置,但结构复杂,价格昂贵。本论文研究相比现有技术成本低、可靠性好的非能动管道爆破保护系统,该保护系统能够很好地替代国内重要工业系统中的进口装置,在降低成本、保护生态环境、节能减排方面将会产生巨大的社会和经济效益。
[Abstract]:Pipeline blasting accidents often occur in pipeline transportation. In order to reduce the loss and risk, it is necessary to close the pipeline in time to cut off the channel for transporting liquid. In this paper, a passive pipeline blasting protection system is proposed, which is an automatic self-protective device. The system does not require external energy to drive, skillfully using the energy of fluid flow to shut down the pipeline. After the pipeline is repaired, the normal function of the pipe can be restored by manpower. The system is mainly composed of ball valve, flow sensor, hydraulic cylinder, drive gear and its control valve. It is connected by pipeline to form an inactive system, which is installed in all kinds of transportation pipeline to play a protective role. The main research contents of this paper are as follows: (1) the advantages, disadvantages and applicable scope of the five common transportation modes in the world are expounded, with emphasis on the important role of pipeline transportation at home and abroad. This paper introduces the traditional principles and methods of pipeline blasting protection system at home and abroad, and expounds the working principle and structural characteristics of the passive pipeline blasting protection system studied in this paper. The structure design of the passive pipeline blasting protection system is completed. The main valve, hydraulic cylinder, differential flow adjustable shuttle valve and pipe-clearing system pass valve of the passive pipeline blasting system are designed, calculated and checked in detail. The 3D model of passive pipeline blasting protection system is established in Creo. The ANSYS finite element analysis of the key parts of the passive pipeline blasting protection system is carried out. The finite element analysis of the flow field of the differential flow adjustable shuttle valve and the finite element analysis of the whole system are presented. Pipeline explosion has been a problem all over the world. The existing technology produces a variety of pipeline blasting protection devices, but the structure is complex and the price is expensive. Compared with the low cost and high reliability passive pipeline blasting protection system, this system can replace the imported devices in the important industrial systems in China, and can reduce the cost and protect the ecological environment. Energy saving and emission reduction will have huge social and economic benefits.
【学位授予单位】：西华大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U179.8

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