Structure Optimization And Thermal Fatigue Life Prediction Of The Regenerative Burner

Regenerative burner is an important part of the regenerative heating furnace, due to thereversing is frequent, lead to poor working conditions of burner refractory components, is themost serious furnace lining first breakage and damage parts, and the furnace wall kicks in, theroot cause of the fire, serious impact on its service life, energy saving effect and economicalefficiency.As the research of regenerative heating furnace burner refractory components damagedmechanism, solve the problems of the heating furnace life is short, this paper, by using finiteelement analysis software of regenerative burner refractory component of temperature field andstress/strain field numerical simulation, explored the regenerative burner refractory componentswork in the process of temperature field and stress/strain state.Through simulation calculation result and the actual damaged condition comparison,analysis and verify the rationality of the simulation method and demonstrates the regenerativeburner cracks are mainly caused by thermal shock and thermal fatigue.Then refractory material physical and chemical properties are simulated and the structureof regenerative burner the influence of thermal stress, thermal stress calculation results showthat the regenerative burner with the linear expansion coefficient increases with the increase ofrefractory and optimized structure of regenerative burner can reduce the regenerative burnerdifferent level stress amplitude of the dangerous parts.Last of regenerative burner for fatigue life estimation, by comparing before and after theoptimization of the service life of the regenerative burner, demonstrates the optimizationstructure of regenerative burner can improve its service life.