论文部分内容阅读
目前,制造厂提供的发电设备大都不提供螺栓强度计算书.对预紧力也没有明确规定.不少电厂在检修安装螺栓时,由于检修人员普遍顾虑结合面产生漏汽,因此,总想把螺栓拧得紧一些.紧固后预紧力到底有多大?螺栓是否安全?缺乏数据依据.本文着重介绍汽轮机前汽缸螺栓预紧力的确定.
At present, most of the power plants provided by the manufacturer do not provide the book for calculating the bolt strength, and there is no explicit stipulation on the preload force.Many power plants are trying to repair the installation bolts because maintenance personnel are generally concerned about the leakage caused by the joint surface. Therefore, Tightening a bit How tight is the pre-tightening force? Is the bolt safe? Lack of data. This article focuses on the determination of pre-tightening force on the front cylinder bolts of a turbine.