串联组合泄放装置中爆破片爆破压力的确定方法研究

发布时间：2018-01-01 00:14

本文关键词：串联组合泄放装置中爆破片爆破压力的确定方法研究　出处：《华东理工大学》2012年硕士论文　论文类型：学位论文

【摘要】：安全泄放装置是压力容器或管道的安全附件之一,安全泄放装置的动作性能对压力容器超压泄放及其重要。安全阀与爆破片串联组合泄放装置是一种新型、比较实用的安全泄放装置。本文首先根据国内外标准确定了安全阀与爆破片串联组合泄放装置动作压力的匹配关系。针对串联组合泄放装置中常用反拱形爆破片,本文采用有限元数值模拟的方法,借鉴非线性屈曲分析,获得反拱形爆破片的临界失稳压力也即是爆破片的爆破压力。主要工作及研究成果有两大部分： (1)在参考国内外关于串联组合泄放装置标准的基础上,确定了选用串联组合泄放装置时,容器的设计压力、爆破片设计爆破压力和安全阀动作压力之间的匹配关系。 (2)借助有限元分析软件ANSYS,采用试验与非线性屈曲分析相结合的方法,对反拱形爆破片进行爆破压力的数值模拟研究,估算反拱形爆破片爆破压力,得到了比较满意的结果。 a)针对不同厚径比、不同预拱高度的反拱带刀型、反拱刻槽型爆破片,进行了常温爆破试验,得到其试验爆破压力； b)采用非线性屈曲分析的方法,获得了反拱带刀型、反拱刻槽型爆破片的临界失稳压力,并与试验爆破压力进行了比较,两者相差大多数均在8%以内。结果表明采用非线性屈曲分析的方法可以比较准确的获得反拱带刀型、刻槽型爆破片的爆破压力,数值模拟的方法具有可行性； c)研究得到了材料性能、厚径比、刻槽余厚和相对预拱高度对爆破片临界失稳压力的影响规律。
[Abstract]:The safety relief device is one of the safety accessories of pressure vessels or pipelines . The action performance of the safety relief device is important for the overpressure relief of the pressure vessel and its importance . The safety valve and bursting disc series combination relief device is a new and practical safety relief device . ( 1 ) On the basis of referring to the standard of series combination relief device at home and abroad , the matching relation between the design pressure of the container and the bursting pressure of the bursting disc and the operating pressure of the safety valve is determined when the series combination relief device is selected . ( 2 ) With the aid of finite element analysis software ANSYS , the numerical simulation of blasting pressure on the reverse domed bursting disc is carried out by using the method of combination of test and nonlinear buckling analysis , and the blasting pressure of the anti - arch bursting disc is estimated , and the satisfactory result is obtained . a ) Normal - temperature blasting test is carried out for the inverted arch with different thickness - to - diameter ratio and different pre - arch height , and the bursting pressure of the test is obtained ; b ) A nonlinear buckling analysis method is adopted to obtain the critical buckling pressure of the inverted arch belt cutter type and the inverted arch groove type bursting disc , and compared with the test burst pressure , the difference is mostly within 8 % . The results show that the method of nonlinear buckling analysis can accurately obtain the blasting pressure of the inverted arch belt cutter type and the groove - shaped bursting disc , and the numerical simulation method is feasible ; c ) The influence of material properties , thickness ratio , groove thickness and relative pre - arch height on critical buckling pressure of bursting disc are studied .

【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH49

【参考文献】