Discussion of the Flexible Tubesheet Design for Waste Heat Boiler with Evaporation Space
Waste heat boiler is a heat exchanger which uses the waste heat in the industrial production to produce saturated steam.The structure of waste heat boiler can be divided into two forms:the shell with its own evaporation space and the top with drum.Waste heat boiler generally adopts the traditional design,the local stress of flexible tubesheet was designed by stress analysis.According to SH/T 3158-2009"Tubular Waste Heat Boiler in Petrochemical Industry",the flexible tubesheet of a waste heat boiler with evaporation space is designed and calculated in this paper,and the finite element analysis software ANSYS is used to analyze the stress of the flexible tubesheet,the stress linearization and strength evaluation were carried out for the three dangerous sections,The results showed that when the thickness of the tubesheet was rounded according to SH/T 3158-2009,the stress evaluation was unqualified.The stress analysis of the tubesheet under the two working conditions is carried out again after increasing the thickness,the conclusion is qualified.Through calculation,analysis and comparison,it is suggested that finite element analysis should be used to flexible tubesheet design of waste heat boiler with evaporation space,so as to ensure its safe and stable operation.
waste heat boilerflexible tubesheetfinite element analysis
万方数据
维普
