论文部分内容阅读
汽鼓筒体采用铆接,管子与汽鼓联箱间连接采用胀接的锅炉即称铆胀接锅炉,这些锅炉均是一些老式锅炉,大多数是业已运行了几十年之久的老设备,这一类锅炉往往参数低、容量小、水处理设备也较为简单,一般都采用二级钠离子交换的除垢水处理方法,再加上长期运行,这样使锅炉汽鼓苛性脆化裂纹的产生具备了一定条件。近二十年来,由于高参数、大容量机组陆续安装、投运,各级领导均非常重视金属部件
Steam drum cylinder with riveting, pipe and drum connection between the expansion joint use of the boiler is called expansion joint boilers, these boilers are some old-fashioned boiler, most of them have been running for decades old equipment, This type of boiler is often low parameters, small capacity, water treatment equipment is also relatively simple, usually using two sodium ion exchange descaling water treatment, coupled with long-term operation, so that the boiler drum caustic embrittlement cracks Have a certain condition. In the past 20 years, due to the high parameters, large-capacity units have been installed and put into operation, leaders at all levels attach great importance to metal parts