旋转轴唇形密封的可持续设计研究

Study on the Sustainable Design of Rotary Shaft Lip Seal

调研和确定旋转轴唇形密封的可持续标准,根据旋转轴唇形密封的具体结构和生产工艺,基于全生命周期评估(LCA)方法,通过定量和定性相结合的方法,计算和分析旋转轴唇形密封生命周期各阶段的能耗、碳排放、单位生产时间、成本等环境、社会和经济可持续指标,确定旋转轴唇形密封可持续改进策略:环境可持续侧重于使用阶段的能耗降低,社会可持续关注生产工艺创新,经济可持续聚焦于延寿设计。从延长使用寿命和优化运行时的摩擦状态2个方面,实施旋转轴唇形密封的可持续改进设计,分析宏观截面形状和尺寸、唇部的微观相貌、唇部材料对旋转轴唇形密封可持续性能的影响。结果表明:薄唇、微观织构和耐磨材料对降低旋转轴唇形密封的能耗和碳排放都具有积极作用,研究结果对提高旋转轴唇形密封的可持续性具有重要意义。

The sustainable standard of rotary shaft lip seal was investigated and determined.According to the specific structure and production process of rotary shaft lip seal,by using a combination of quantitative and qualitative methods,the environmental,social and economic sustainable indexes such as energy consumption,carbon emission,per unit production time,cost at each stage of rotary shaft lip seal life cycle were calculated and analyzed based on a life-cycle assessment(LCA)method.The sustainable improvement strategy of rotary shaft lip seal was determined,which are that environmental sustainability focuses on reducing energy consumption during the use stage,social sustainability focuses on innovation in production processes,and economic sustainability focuses on extending lifespan design.The sustainable design of rotary shaft lip seal was implemented from two aspects of prolonging service life and optimizing the friction state during the operation.The influences such as macro section shape and size,the roughness and surface texture of microscopic appearance,seal lip material on the sustainable performance of rotary shaft lip seal were analyzed.The results show that thin lip and surface micro texture as well as wear-resistant materials play positive roles in reducing energy consumption and carbon emissions of rotary shaft lip seal.The research results are of great significance for improving the sustainability of rotary shaft lip seal.