Stress Analysis and Strength Evaluation of Tubesheet of Hairpin Heat Exchanger
Using ANSYS finite element analysis software,considering the influence of pressure load and temperature load on the whole stress distribution of tubesheet,the finite element stress analysis of hot end tubesheet of hairpin circulating cooler was carried out by using sequence coupling method under seven working conditions.The results showed that under the combined action of pressure load and temperature load,the maximum equivalent stress of the tubesheet was 329.9 MPa,which was located at the connection between the heat exchange tube and the tubesheet in the tube distribution area.The maximum equivalent stress value of tubesheet was 332.5 MPa under shell program stop condition,which was the most dangerous condition of tubesheet of hairpin circulating cooler.The maximum equivalent stress on the tubesheet was treated with equivalent linearization,and the strength was evaluated according to the analysis and design standards.
Hairpin heat exchangerTubesheetFinite element methodStress linearization
NETL
NSTL
万方数据
