PVElite中对于小接管的计算,标准中有这样的规定:
The Code paragraph UG-36 discusses the requirement of performing area replacement calculations when small nozzles are involved. The Code States: Openings in vessels not subject to rapid fluctuations in pressure do not require reinforcement other than that inherent in the construction under the following conditions : 3.5" finished opening in a shell or head .375 inches required thickness or less 2.375" finished opening in a shell or head greater than .375 inches required thickness 对应于计算中不勾选Compute and Print Areas for Small Nozzles 假若选择计算,有可能出现补强不通过的情况,今天计算正好碰到 试问:何种情况下计算或者不计算小接管的补强? 谢谢 |