锥面密封油套管特殊螺纹接头密封面过盈量计算  

Calculation of cone sealing surface interference of premium connection

作　　者：詹先觉[1] 罗蒙[1] 王琍[1] 

机构地区：[1]宝山钢铁股份有限公司研究院,上海201900

出　　处：《宝钢技术》2014年第6期55-58,共4页Baosteel Technology

摘　　要：根据厚壁圆筒的弹性力学原理,对油套管锥面密封形式特殊螺纹接头的密封面过盈量设计进行了理论推导,根据第四强度理论,在保证密封面不屈服的条件下,得出密封面理论最大过盈量.利用得到的公式对密封结构参数进行了计算分析,结果表明,密封面角取10°～30°、台肩角取5 °～20°,为接头设计的理想范围.对实际加工接头进行标准试验,对比试验值与计算值,发现实际过盈量为计算最大过盈量的0.7～0.9倍,研究成果为接头密封面设计提供了理论依据.Based on the elastic mechanics theory of thick wall cylinder, a interference calculation formula about cone-type sealing structure of premium connection was deduced, according to Von Mises strength theory, the maximum amount of interference in the sealing surface, in which the sealing surface does not achieve yield condition was calculated. According to the calculation of interference formula of seal structure, the results show that the ideal range of connection sealing surface angle is between 10°to 30°, and the shoulder angle is between 5° to 20°. Compared with the test results, the actual amount of interference is 0. 7 - 0. 9 times of calculation, research on connection sealing surface provides a theoretical formula.

关 键 词：特殊螺纹接头 密封 过盈 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]