市域列车车内空气压力波动控制技术
于晓良王胜光
City Railway Train Interior Air Pressure Fluctuation Control Technology
YU XiaoliangWANG Shengguang
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作者信息:中车青岛四方机车车辆股份有限公司，266111，青岛∥第一作者，高级工程师
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Affiliation:CRRC Qingdao Sifang Co., Ltd., 266111, Qingdao, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2023.01.044
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中图分类号/CLCN:U239.5；U270.38+3
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栏目/Col:应用技术
摘要:
针对市域列车运行速度较高且运行线路隧道阻塞比较大的特点，为有效抑制车外急剧变化的空气压力波动传入车内，在简述车内空气压力波动控制指标及高速动车组空气压力波动控制方式的基础上，提出了市域列车整车气密性控制指标，介绍了市域列车两种被动式压力保护系统的组成、工作原理及控制方式。现车测试结果表明，采用两种控制方案，车内空气压力波动均满足3 s内最大空气压力变化不大于800 Pa的要求，控制效果良好。此外，还对新风电动风量调节阀全开和全关状态下的车内空气压力波动进行了测试。测试结果表明，新风电动调节阀全关状态下的车内最大空气压力3 s内变化值可降低约10%。
Abstracts:
In view of the characteristics of high train running speed and high operating line tunnel blocking ratio of city railway, in order to effectively prevent the external air pressure fluctuation that changes drastically from entering train, based on the brief description of the interior air pressure fluctuation control index and the air pressure fluctuation control mode of high-speed EMU, the overall air-tightness control index of city railway train is proposed. The composition, working principle and control mode of two kinds of passive pressure protection systems for city railway train are studied. In-vehicle test results show that both the interior air pressure fluctuation control schemes can meet the requirement of maximum air pressure change of less than 800 Pa within 3 seconds, and the control effect is good. In addition, the interior air pressure fluctuation is tested under both the fully open and fully closed states of fresh air electric volume regulating valve. Test results show that the maximum pressure change within 3 seconds can be reduced by 10% under the fully closed state of fresh air electric regulating valve.
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