Analysis Design of Flexible Tube Sheet in the Full Waste Heat Boiler with Central Adjusting Tube
Based on the ANSYS WORKBENCH work platform,the finite element model of the full waste pot heat exchanger with central adjusting tube was established by the computational method of analytical design,and steady-state heat transfer and static strength analyses were carried out,so as to obtain the temperature and stress-strength distribution field of the full waste heat boiler heat exchanger with central adjusting tube.The results show that the anti-scald structure of refractory lining,ceramic casing,and ceramic fiber paper can effectively protect the metal tube sheet under high temperature conditions;even in the case of complete failure of the central adjusting tube,the safety of the heat exchanger can be effectively ensured by adopting a reasonable analytical calculation method and heat exchanger tube arrangement;the stress intensity of the tube sheet under the condition of considering the influence of heat transfer is much higher than that of the tube sheet without considering the influence of heat transfer;When the central adjusting tube completely loses its function and only relies on the heat exchanger tube to carry out the work,the tube sheet at the hot end will have a high-temperature temperature ring,while the position of the tube sheet at the central adjusting tube and the position at the edge of the piping area will have a lower temperature.Due to the failure of the central adjusting tube,the tube sheet at the cold end will have a local over-temperature phenomenon at the position of the central adjusting tube.
NETL
NSTL
万方数据
维普
