一种地下地铁车站屏蔽门渗入风量计算模型
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重庆大学 土木工程学院

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中图分类号:

TU831

基金项目:

重庆市建设科技项目(城科字2021第3-10);重庆市高校创新研究群体(CXQT21004)


A calculation model of infiltration air volume of platform screen doors (PSD) in subway station
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Affiliation:

School of Civil Engineering,Chongqing University

Fund Project:

Construction science and technology projects of Chongqing (No. 城科字2021第3-10); University Innovation Research Group of Chongqing (No. CXQT21004)

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    摘要:

    屏蔽门渗透风量是影响地铁车站冷负荷的重要因素,本文提出一种渗透风量计算模型,通过对测试风速分析,分位置分阶段研究了屏蔽门的渗透风的特征,然后通过对列车运行因素进行分析,建立了一种屏蔽门渗透总风量的计算方法,结果发现:1)不同位置屏蔽门的渗透风速不一样,沿着列车的运行方向,单周期屏蔽门的渗透风速以及风量都随着门位置的变化而减小。2)不同阶段的屏蔽门渗透风量也存在着差异,列车停靠阶段的单周期渗透总风量最大,是进站的10倍左右。3)给出了单周期屏蔽门渗透风量的范围,为渗透总风量的计算提供了基础,并提出了相应的计算模型,可以计算得到的地铁车站的全天的屏蔽门渗透风量。

    Abstract:

    The infiltration air volume of platform screen doors (PSD) is an important factor affecting the cooling load of subway station. This paper proposes a calculation model of infiltration air volume. Through the analysis of test wind speed, the characteristics of infiltration air volume of PSD are studied by location and stage. Then, through the analysis of train operation factors, a calculation method of total infiltration air volume of PSD is established, The results show that: 1) the infiltration wind speed of PSD at different positions is different. Along the running direction of the train, the infiltration wind speed and air volume of PSD in a single cycle decrease with the change of door position. 2) There are also differences in the infiltration air volume of PSD in different stages. The total infiltration air volume in a single cycle in the train stopping stage is the largest, which is about 10 times that in the station. 3) The range of infiltration air volume of single cycle PSD is given, which provides a basis for the calculation of total infiltration air volume,and the corresponding calculation model is proposed, which can calculate the whole day air volume of PSD penetration of subway station.

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  • 收稿日期:2022-02-09
  • 最后修改日期:2022-02-20
  • 录用日期:2022-03-26
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