轨道车辆孔板送风特性的试验研究  

Experiment on Performance of Air Supply Orifice in Rail Vehicle

作　　者：臧建彬[1] 王亚伟[1] 陈佳[1] 高乃平[1] 史意[1] 

机构地区：[1]同济大学机械工程学院,上海201804

出　　处：《铁道学报》2011年第12期33-37,共5页Journal of the China Railway Society

摘　　要：轨道车辆客室内的气流组织直接影响乘客乘坐的舒适性。静压箱孔板送风具有结构简单、送风温度和速度均匀等优点,适用于区域温差和工作区风速要求严格的场所。但是由于轨道车辆空间有限,静压箱稳压层的高度受限,容易造成静压箱内静压不均匀,影响孔板送风的均匀性;而顶棚两侧由于存在一定的密封区域,对宽度方向上的送风均匀性也有一定的影响。本文采用1∶1等比例模型试验的方法,针对一种运用在磁悬浮列车上的孔板,在等温条件下,对轨道车辆孔板送风规律进行研究,考察其阻力特性、孔板上方静压分布及孔板送风均匀性。Air distribution inside rail vehicles directly affects comfort of passengers.Air supply orificeds in static pressure boxes are characterize by simple structure,well-distributed air temperatures and velocities,so they are suitable for the place of strict requirements for space temperature spans and wind speeds.But the limited space of rail vehicles imposes restrictions on the plenum space of the static pressure boxes,which easily causes nonuniform static pressures in the static pressure boxes and hinders uniform distribution of orifice air supply;since there are certain sealting areas on both sides of the roof,uniformity of distribution of orifice air supply is affected to some extent in the direction of the width.In this paper,the 1∶1 scale model tests were made.The kind of orifices used in the maglev train was chosen for the tests.The orifice air supply law was studied under the isothermal conditions.The resistance characteristics,static pressure distribution above the orifice and orifice air supply distribution uniformity were investigated.

关 键 词：孔板送风 轨道交通 车辆 静压 不均匀度 

分 类 号：U270.383[机械工程—车辆工程]