220t/h高温高压燃气锅炉上级省煤器安装工艺

Installation Technology of the Upper Coal Economizer of 220t/h High Temperature and High Pressure Gas-fired Boiler

为方便220t／h高温高压燃气锅炉上级省煤器安装，在距离上级预热器顶部3m左右搭设能够承受上级省煤器及操作系统等重量的临时平台，代替传统地面组装法，避免了半空作业调整焊接的危险性，缩短了施工工期，节约了工程造价。

In order to provide convenience for the installation of upper coal economizer of 220t/h high temperature and high pressure gas-fired boiler, a temporary platform is built at about 3 meters from the top of upper preheater to sustain the weight of upper coal economizer and operating system, replacing the traditional ground assembling method. Thus, the risk of adjusting welding during the mid-air operation is avoided, the construction period is shortened, and the construction costs are saved.