卡压式管道连接机具的设计及关键技术研究

发布时间：2018-03-05 09:27

本文选题：管道卡压连接　切入点：密封　出处：《哈尔滨工程大学》2011年硕士论文　论文类型：学位论文

【摘要】：由于管道的材料、性能、用途等不同,其连接方法也不尽相同,本文介绍了管道的卡压式连接技术,该方法在连接前不需要对管道的端部进行任何处理,方法简单。采用卡压式连接方法进行管道连接时,需通过液压站输出的液压油驱动专用的加载装置对卡压接头进行加载,利用卡压接头的密封面产生弹塑性变形来填满接触面的间隙,从而实现管道密封。本文来源于《管道非焊接连接技术研究》的技术合同,对管道卡压连接技术和连接机具的结构进行了设计研究。论文主要完成如下工作：本文首先在了解国内外相关技术研究发展情况的基础上,分析了卡压式管道连接的密封机理和连接原理,并根据连接机具的技术要求,提出总体设计方案,并在总体方案的基础上对主机机械、液压系统进行了方案的设计在此基础上,对卡压接头的端部稳定性和连接过程中的受力进行分析,模拟该连接过程,并分析密封环的形式和弹性模量对卡压接头应力和应变的影响；同时通过ANSYS软件对卡压接头的密封性能进行分析,指出影响密封性能的主要因素,并完成了卡压接头的研制。对加载装置的结构进行了设计,对主要零部件进行强度分析,并利用运动仿真证明其结构设计的合理性。同时完成液压控制系统的设计方案,并进行了设计计算和液压元件的选型。通过对管道卡压接头的连接实验和密封实验,将实验结果与有限元分析的结果进行对比分析,验证了卡压接头结构设计的合理性、有限元仿真结果的正确性以及良好的密封性能。
[Abstract]:Because of the different materials, properties and uses of the pipeline, the connection method is different. This paper introduces the technology of the pipe clamping connection, which does not need any treatment to the end of the pipe before the connection. The method is simple. When using the clamped connection method to connect the pipe, it is necessary to load the clamping joint through the special loading device of hydraulic oil driven by the hydraulic station. The sealing surface of the clamped joint is used to produce elastic-plastic deformation to fill the gap of the contact surface, thus the pipeline seal is realized. In this paper, the technology of pipe clamping connection and the structure of connecting machine are designed and studied. The main work of this thesis is as follows:. Based on the research and development of related technologies at home and abroad, this paper analyzes the sealing mechanism and connection principle of the clamped pipe connection, and puts forward the overall design scheme according to the technical requirements of the connecting machines and tools. On the basis of the overall scheme, the design of the main machine and hydraulic system is carried out. On this basis, the stability of the end of the joint and the stress during the connection are analyzed, and the connection process is simulated, and the influence of the form of seal ring and the elastic modulus on the stress and strain of the joint is analyzed. At the same time, the sealing performance of the clamping joint is analyzed by ANSYS software, the main factors affecting the sealing performance are pointed out, and the development of the clamping joint is completed. The structure of the loading device is designed, the strength of the main parts is analyzed, and the rationality of the structure design is proved by using the motion simulation. At the same time, the design scheme of the hydraulic control system is completed. The design calculation and the selection of hydraulic components are also carried out. Through the connection experiment and sealing experiment of the pipe compression joint, the result of the experiment is compared with the result of the finite element analysis, and the rationality of the structure design of the clamped joint is verified. The correctness of finite element simulation results and good sealing performance.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH137.9

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