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整体补强是压力容器开孔补强一种常用的方式,对于压力较高的容器经常采用锻管作为的型式进行整体补强,补强管的补强段往往比较厚,而到了与法兰焊接的部分就需要满足法兰连接的要求,往往会比补强段薄很多,所以补强管需要削薄,削薄段即为补强管的厚段到薄段的过渡段,过渡段角度大则形状变化剧烈,应力大,过渡段角度小,需要的锻管很长,且管口伸出很长,本文对渤中油田燃气缓冲罐的人孔补强管进行了有限元分析,对比不同角度下过渡段的应力情况。
The overall reinforcement is a commonly used method of pressure vessel opening reinforcement for the pressure vessel is often used as a forging tube reinforced the overall reinforcement, reinforcing pipe reinforcement section is often relatively thick, but to the flange welding Some will need to meet the requirements of the flange connection tend to be much thinner than the reinforced section, so the reinforcing tube needs to be thinned, thinning section is the thick section of the reinforcing tube to thin section of the transition section, the transition section angle The shape changes intensely, the stress is big, the angle of the transition section is small, the required forging pipe is very long, and the pipe mouth extends for a long time. In this paper, the finite element analysis of the manhole reinforcing pipe of the gas buffer tank of Bozhong Oilfield is carried out. Section of the stress situation.