Abstract:

The main reason for unplanned outage is the bursting and leakage of heating surfaces of power plant boiler. According to the status quo of passive inspection and maintenance on power plant anti-wear and explosion proof, a concept of digital management on boiler antiexplosion and antiexplosion work is put forward. Wall temperature of boilers are analyzed, assessed and graded from various aspects. The risk assessment model of heatingsurface pipe is established. The equivalent creep lifetime loss caused by overtemperature is introduced into the evaluation model. Combined with offline testing data, the risk level of the heatingsurface tube is amended dynamically, which can improve the assessment reliability of the risk indicators.

Key words:

antiexplosion and explosion proof, overtemperature, 3D visualization, risk assessment