Fatigue Strength Check of Pressure Swing Adsorber Based on FEM
Adsorption hydrogen productions are used for Hydrogen purification in the Oil refining industry with hydrogen selective adsorption on the surface of microporous adsorption material based on adsorption principle with the equipment of Pressure Swing Adsorber (PSA).PSA is easy to be caused fatigue failure with frequent pressurization and pressure-relief.The fatigue pressure vessels as PSA must be fatigue strength checked according to the standards of pressure vessel design beside the Conventional design standards to ensure the service life of equipment.FEM was used to analyze the structure of a PSA provided by a chemical company on the basis of ensuring the fatigue strength according to the JB4732-1995 (2005).The structures of upper and lower connected nozzle had been optimized to locate the maximum stress beside the corner and the connected position between the heads and the forged nozzles to reduce the nozzles weight and cost.Finally,the maximum stress of the determined structure located in the forging tube between the head and the outer wall with the maximum stress value as 169.07MPa according to the design pressure of 1.03MPa.The alternating stress force and intensity amplitude had been calculated with the working pressure range from -0.08MPa to 0.85MPa.The modified stress of the working pressure range was 78.9MPa with alternating cycle allowance being greater than 106 times,which was greater than the design cycles of 9.2 × 105 times.
Pressure Swing Adsorber finite element method Fatigue strength Q345
HU Xiaodong WANG Shifei JIANG Di WANG Haiyue
College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingd Qingdao Santak Chemical Design Co,Ltd,Qingdao 266590,China
国际会议
2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)
天津
英文
241-245
2016-05-26（万方平台首次上网日期，不代表论文的发表时间）