No Doubles As A Flange Fixed Tube Sheet Heat Exchanger Mechanical Behavior Study

Shell and tube heat exchangers are widely used in the petrochemical industry typicalprocess equipment, by the force of the shell and tube heat exchanger is very complex, thecorrect analysis of shell and tube heat exchangers to force state to guarantee the safe operationof heat exchanger, saving materials as well as the overall heat exchanger economy has playeda very important role.At home and abroad all kinds of literature, not doubles as a flange fixed tube plate heatexchanger, the overall finite element analysis of no one to carry out. In this paper thisopportunity, not doubles as a flange fixed tube sheet heat exchanger mechanical behavior ofthe study.This article describes several structures in the form of several common structural type ofshell and tube heat exchanger and the fixed tube sheet heat exchanger. Doubles as a flangefixed tube sheet heat exchanger temperature and stress field were studied.Not double as part of the flange fixed tube sheet heat exchanger temperature fieldanalysis, thermal stress causes and the methods of analysis of the temperature field, andreasonable heat exchanger temperature field analysis model, the model mesh and loading,solving the distribution of the temperature field, and route the results are analyzed and lawsummary. Verify the theory of skin effect in the ASME Code.Doubles as a flange fixed tube plate heat exchanger, the overall model of stressdistribution. Analysis and strength assessment (based on the fourth strength theory) of sevendifferent operating conditions were selected from the tube sheet seven of the path key, selectone of three paths to the graph, and according to the same three the path for analysis,comparative analysis and evaluation of the stress on the tube sheet path, and under normaloperating conditions the heat exchanger as a whole amount of deformation and thedeformation of the tube plate, working conditions and working conditions as dangerousconditions, but did not exceed the heat exchanger design requirements, so it will not cause thetube plates, and the failure of the heat exchanger, heat exchanger in a safe state. Stressanalysis of the tube plate, thin layer near the surface of the tube sheet on both sides of theclose to the tube, the shell region is most prone to damage.This article a comprehensive in-depth study doubles as a flange fixed tube plate heatexchanger, analyzes and summarizes the characteristics of the mechanical behavior of doublesas a flange fixed tube plate heat exchanger, and provide a great deal of analysis for this typeof heat exchanger further research with a certain value.The paper quoted the same type of heat exchanger local finite element analysis modelingwere analyzed further verify the feasibility and limitations of the local modeling analysis, andfurther validates the comprehensive and accurate finite element analysis of the overallmodeling.