论文部分内容阅读
汽包是锅炉设备中水汽系统的重要组成部分,其温度、压力高,工作条件恶劣,因此对汽包运行的安全性要求较高。在一定运行工况下,汽包内焊缝及开孔部位受到热交变应力、结构应力等应力作用将产生缺陷,如不及时发现及处理。无疑会给设备运行带来严重的安全隐患。通过对多台电站锅炉的内部检验,发现汽包的主要缺陷有孔桥裂纹、管口裂纹、焊缝裂纹、汽水挡板预埋件裂纹等等。本文主要针对检验时发现的3
Drum is an important part of the water vapor system in the boiler equipment. Due to its high temperature, high pressure and poor working conditions, the steam drum requires high safety of steam drum operation. Under certain operating conditions, the welding seam and the open hole in the steam drum are subjected to thermal stress, and structural stress and other stress effects will cause defects, if they are not found and treated in time. Will undoubtedly bring serious security risks to equipment operation. Through the internal inspection of multiple power plant boilers, it was found that the main defects of drums are cracked bridges, cracked pipes, cracked welds and cracks in the baffle boards. This article is mainly for inspection found 3