摘要
为满足广大乘客在舒适性、经济性、安全性等方面的需求,中国铁路乌鲁木齐局集团有限公司配属了时速160 km“复兴号”CR200J型动力集中动车组。冬季动力集中动车组途经高寒、暴雪、大湿度的运行区段,沿线历年极端低温为-40~-30℃,北疆的精伊霍线、奎北线相对湿度为50%~80%;出现了多起动力集中动车组拖车气路控制箱结冰的问题,造成了塞拉门、集便器、空气弹簧无风等严重故障。文章从动力集中动车组运用环境、干燥器控制逻辑、供风管路、运用维修等方面进行分析,得出了冬季北疆运行线路低温、大湿度是气路控制箱结冰的外部原因,干燥器启停与空压机打风不同步、拖车供风管点取在总风缸Ⅰ之前是气路控制箱结冰的内部原因。通过优化干燥器控制逻辑、优化供风管路、调整运行交路、优化冬季排水作业、增加干燥器检查等改进措施,后续未发生气路控制箱结冰造成塞拉门、集便器、空气弹簧无风的故障,提高了乘客乘坐安全性和舒适性,确保了动力集中动车组的运营安全。
To satisfy the demand of passengers in respects of comfort,economy and safety,“Fuxing”CR200J power concentrated EMUs at 160 km/h have been allocated to China Railway Urumqi Group Co.,Ltd.In winter,the power concentrated EMUs pass by sections with high cold,heavy snow and high humidity where the extreme low temperatures along the lines have been-40~-30°C over the years,and the relative humidity of the Jingyihuo Line and Kuibei Line in northern Xinjiang is 50%~80%.There have been multiple freezing cases in the air pipeline control box in trailers of the power concentrated EMU,resulting in serious failures of plug doors,dejection collectors and air springs without air supply.This article analyzes the service environment,the control logic of dryer,the air supply pipeline,the operation and maintenance of the power concentrated EMU,concludes that the low temperature and the high humidity along the operating lines in northern Xinjiang in winter are the external causes for freezing of air pipeline control box,while the asynchronism of the start and stop of the dryer and the operation of the air compressor as well as the air supply pipe joint for trailer located at upstream of the main air reservoirⅠare the internal causes.After the improvement by means of optimizing the control logic of dryer and the air supply pipeline,adjusting the operation routes,optimizing the draining operation in winter and adding the inspection of dryer,the air pipeline control box hasn’t been frozen to cause failures of plug doors,dejection collectors and air springs without air supply,the ride safety and comfort of passengers have been improved and the operating safety of the power concentrated EMU has been guaranteed.
作者
樊立新
FAN Lixin(Urumqi Depot,China Railway Urumqi Group Co.,Ltd.,Urumqi 830011,China)
出处
《铁道车辆》
2024年第1期176-181,共6页
Rolling Stock
基金
中国国家铁路集团有限公司科技研发计划课题(N2020J005)。
关键词
新疆
动力集中动车组
气路控制箱
管路冻结
Xinjiang
power concentrated EMU
air pipeline control box
freezing of pipeline
