轨道交通车辆车门系统生命周期环境效益评价  

Life Cycle Based Environmental Benefits Assessment of Rail Vehicle Door System

作　　者：赵锐[1] 赵祎杰 熊欣 蒋启帆 徐畅 ZHAO Rui;ZHAO Yijie;XIONG Xin;JIANG Qifan;XU Chang(School of Environmental Science and Engineering,Southwest Jiaotong University,Chengdu 611756,Sichuan,China;Technology Center,Chengdu Customs District P.R.China,Chengdu 610041,Sichuan,China)

机构地区：[1]西南交通大学环境科学与工程学院,四川成都611756 [2]中华人民共和国成都海关技术中心,四川成都610041

出　　处：《济南大学学报(自然科学版)》2025年第1期11-19,共9页Journal of University of Jinan(Science and Technology)

基　　金：国家重点研发计划项目(2019YFC1905600);四川省青年科技创新团队项目(2022JDTD0005);四川省重点研发计划项目(2023YFG0111);中央高校基本科研业务费项目(2682021ZTPY088)。

摘　　要：为了推动轨道交通车辆绿色制造的进程,以车门系统为研究对象,建立生命周期模型,构建环境效益评价指标体系,评价车门系统生命周期生产、运输、使用、废弃物处理阶段的主要环境影响,探究电力能源结构替代和焊接工艺变化对车门系统生命周期的环境影响。结果表明:车门系统生命周期不同阶段的环境影响从大到小的排序为生产阶段、废弃物处理阶段、使用阶段和运输阶段;环境影响评价指标从大到小依次为化石能源消耗潜值、温室气体排放潜值和环境酸化潜值;减少生产阶段和废弃物处理阶段的化石能源消耗和温室气体排放有助于产品生命周期环境效益提升;生产阶段中通过减少火电占比,优化电力结构,全球变暖潜值、化石能源消耗潜值和环境酸化潜值可分别降低38.96%、38.90%、38.86%;采用气体金属弧焊工艺替代保护性金属弧焊工艺,全球变暖潜值、化石能源消耗潜值和环境酸化潜值可分别降低64.71%、58.94%、59.85%。To promote the process of green manufacturing of rail transit vehicles,the door system was taken as the research object,the life cycle model was established,the environmental benefit evaluation system was constructed to evaluate the main environmental impact of the production,transportation,use and waste disposal stages of the door system,and the environmental impact of the replacement of electric energy structure and welding process changes on the life cycle of the door system was explored.The results show that the stages of the door system life cycle environmental impact contribution are ranked from the largest to the smallest as the production stage,the waste treatment stage,the use stage and the transportation stage.The potential values of environmental impact indicators are fossil energy consumption,greenhouse gas emission and environmental acidification respectively.Reducing fossil energy consumption and greenhouse gas emissions in the production stage and waste treatment stage helps to improve the environmental benefits of product life cycle.In the production stage,by reducing the proportion of thermal power and optimizing the power structure,the global warming p otential,abiotic depletion potential of fossil and environmental acidification potential can be reduced by 38.96%,38.90%a nd 38.86%respectively.By using gas metal arc welding instead of protective metal arc welding,the global warming potential,abiotic depletion potential of fossil and environmental acidification potential can be reduced by 64.71%,58.94%and 59.85%,respectively.

关 键 词：轨道交通车辆 车门系统 生命周期评价 环境效益 电力结构 焊接工艺 

分 类 号：X828[环境科学与工程—环境工程]