Abstract:

The differences between CDQ boilers of high temperature plus high pressure and that of medium temperature plus medium pressure are introduced in aspects of design parameter and structure.Comparison is also made in respects of water quality,air\|fuel ratio,vaporization rate and circulating gas,etc.based on the actual operating parameters of the CDQ boiler in Baosteel.In addition,analysis is made for the related differences in design for the CDQ boiler.Suggestions are also given for improving Baosteel CDQ boiler operation in the future.