考虑应力集中效应的蒸汽灭菌器关键焊缝结构设计研究

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DOI：10.19981/j.CN23-1581/G3.2026.11.028

中图分类号：TH789

文献标志码：A

文章编号：2095-2945（2026）11-0128-04

Abstract： To improve the structural safety and service life of medical steam sterilizers， this study systematically analyzed the stress concentration effect and proposed geometric optimization and reinforcement measures for key weld positions of typical cross-section sterilizers. Through finite element simulation and fatigue life assessment of six types of key weld structures such as longitudinal， circumferential， supporting feet， and nozzle openings of the cylinder body， it was found that the weld seam between the observation window and the steam inlet opening has the highest stress concentration and fatigue risk， and other welds have sufficient safety margin. Research has shown that optimizing weld formation quality and structural transition design can effectively reduce the stress concentration factor， significantly improve the fatigue life and structural safety of the weld， and provide technical support for the safe and reliable operation of medical steam sterilizers.

Keywords： steam sterilizer; stress concentration; key weld structure; finite element analysis; fatigue life

随着医疗行业对灭菌安全与设备可靠性的要求提升，蒸汽灭菌器作为医院常用高温高压设备，其结构设计直接影响医疗安全和使用寿命。（剩余5525字）