榆林炼油厂热水管系跨距计算及柔性设计

发布时间：2018-07-04 10:49

本文选题：热水管系 + AutoPIPE　；参考：《西安石油大学》2015年硕士论文

【摘要】：本次课题的目的是为榆林炼油厂热水管系设计支架,并进行管道应力分析,即在已确定管系走向的情况下合理确定支架的位置,使管系满足经济合理又安全可靠的要求。首先根据强度和刚度要求,确定了榆林炼油厂热水管系最大允许跨距,经过计算该最大允许跨距为16m,系由刚度条件确定。根据该最大允许跨距,进行了热水管系的支架位置及类型设置。然后利用管道应力分析软件AutoPIPE对榆林炼油厂热水管系建立模型,通过软件自身的应力分析功能对管系进行静力分析,据ASME B31.3规范对管系进行安全评定,并通过改动支架位置或支架类型的方法改进管系性能,使管系满足安全要求；然后取应力最大的管点所在的管段进行受力分析,经过分析发现,发现管段中间部位受到的力比较大,而起决定性作用的是轴向力,影响轴向力的主要因素是由温度引起的膨胀力；管段中间部位的弯矩主要是由管道及其附件自身的重力引起的；管段靠近弯头处的弯矩是由膨胀力和内压力引起的,起主导作用的是膨胀力；允许管段弯头存在适量的位移,可以大幅度降低膨胀力；管段两端的位移较大,需要通过固定支架合理控制,使得管道既安全,又不影响相邻设备的运行。本文通过AUTOPIPE软件建立榆林炼油厂热水管系模型,并对其进行支架合理位置设置及类型设计,并经过管道应力分析,满足ASME B31.3的规范要求,即设置的管系支架位置和类型合理,管系安全可靠。
[Abstract]:The purpose of this project is to design the support for the hot water pipe system in Yulin Refinery, and analyze the pipeline stress, that is, to reasonably determine the position of the support under the condition that the direction of the pipe system has been determined, so that the pipe system can meet the requirements of economic, reasonable and safe and reliable. According to the requirement of strength and stiffness, the maximum allowable span of hot water pipe system in Yulin Refinery is determined. The maximum allowable span is 16 m, which is determined by the stiffness condition. According to the maximum allowable span, the support position and type of hot pipe system are set. Then the pipeline stress analysis software AutoPIPE is used to establish the model of the hot water pipe system in Yulin Refinery. The static analysis of the pipe system is carried out through the stress analysis function of the software itself, and the safety of the pipe system is evaluated according to ASME B31.3 code. The performance of pipe system is improved by changing the position or type of support, so that the pipe system can meet the safety requirements, and then the stress analysis of the pipe section at which the stress is the greatest is analyzed, and it is found that the pipe system can meet the requirements of safety. It is found that the force in the middle part of the pipe section is relatively large, while the axial force plays a decisive role, and the main factor affecting the axial force is the expansion force caused by temperature. The moment in the middle part of the pipe is mainly caused by the gravity of the pipe and its accessories, the moment near the bend is caused by the expansion force and the internal pressure, the dominant force is the expansion force, and the appropriate displacement of the pipe bend is allowed. The displacement at both ends of the pipe section is large, which needs reasonable control of the fixed support to make the pipeline safe and not affect the operation of adjacent equipment. In this paper, the model of hot water pipe system in Yulin Refinery is established by using the software AUTOPIPE, and the reasonable position and type design of the support are carried out. Through the stress analysis of the pipeline, the requirements of ASME B31.3 specification are satisfied, that is, the position and type of the pipe system support is reasonable. The pipe system is safe and reliable.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE96

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