拔制三通C值对三通受力及爆破压力的影响  

Impact on Stress and Bursting Pressure of CValue for Extruded Tees

作　　者：赵树炳[1] 张志强[1] 范玉然[2] 孙学军[1] 赵振兴[1] 

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000 [2]中国石油天然气管道科学研究院,河北廊坊065000

出　　处：《石油化工设备》2015年第1期23-26,共4页Petro-Chemical Equipment

摘　　要：通过有限元分析方法,以DN 1 200mm×1 000mm拔制异径三通为例,计算分析了拔制三通C值对三通各关键受力部位及三通爆破压力的影响。分析计算结果表明,1当C值小于当前规范给定值时,增加三通C值能有效减小三通肩部、腹部的应力,三通的爆破压力增加也比较明显。2当C值大于规范给定值时,C值的变化对各部位的应力影响变小,不能有效提高三通爆破压力。3在目前各规范规定C值的基础上,如再增加C值不能有效提高拔制三通的强度。Through the finite element analysis method, the DN1 200 mmX 1 000 mm extruded tee is taken as an example, the impact on the stress of the main parts and bursting pressure of the extruded tee while C value increases are calculated. The results show that, when the C value is less than the current specification given value, the stress by increasing the C value can be effec- tively reduced, and the bursting pressure increases obviously, but when the C value is greater than the specification given value, it is unable to effectively enhance the bursting pressure by in- creasing the C value. So by increasing the C value basis on the specified value, the strength of ex- truded tee could not be effectively improved.

关 键 词：拔制三通 爆破压力 C值 补强 影响 

分 类 号：TQ050.2[化学工程] TE965[石油与天然气工程—石油机械设备]