中文摘要
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In the actual use of pressure vessels, the fracture and damage accidents of pressure vessels are increasing due to some defects, new defects caused by loads and media in the production and processing, and harsh service conditions of pressure vessels. Therefore, the safety of pressure vessels has also attracted much attention. Compared with ordinary pressure vessels, the filter cartridge has a higher probability of failure than ordinary pressure vessels because it contains intersecting cavities, so it has higher requirements for its safety. In this paper, the finite element software is used to analyze the stress of the pressure vessel filter cartridge and evaluate the stress safety. The defective parts of the pressure vessel are improved by increasing the wall thickness, so as to improve the strength and stiffness, and finally reach the allowable stress limit, which provides a basis for checking whether the pressure vessel is safe or not. The method of finite element analysis can quickly and accurately find the failure cause and failure law, which is an effective way to reduce the recurrence of accidents. At the same time, it is of far-reaching significance to effectively prevent pressure vessel accidents and improve the safety and reliability of equipment.
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