变工况下地铁屏蔽门风压特性实测研究

作者：王丽慧孙彬黄淑敏曾骁晹王博左沪张君瑛

单位：上海理工大学上海地铁第一运营有限公司上海东滩建设集团有限公司

摘要：针对屏蔽门风压问题，通过改变车站公共区机械送排风系统、轨行区上下排热系统和活塞风井通风系统得到8种组合工况，对列车正常运行下屏蔽门风压进行测试。结果表明：在车站公共区机械送排风系统变工况下，不同位置屏蔽门同一时刻承受的风压极值最大相差近50%,不能作为调控屏蔽门风压的有效手段；轨行区上下排热系统变工况下，开启上排热能降低中部屏蔽门的最大正压值，但对两侧屏蔽门的效果并不好，因此轨行区上排热系统不能作为调控屏蔽门风压的有效手段；双活塞风井连通风阀变工况下，开启连通风阀能有效降低屏蔽门风压值，正压峰值最大能降低88.3%,负压峰值最大能降低50%。

关键词：地铁屏蔽门风压变工况送排风上下排热活塞风井连通风阀

作者简介：王丽慧，女，1978年生，博士研究生，教授;*曾骁晹（通信作者）200003上海市黄浦区新闸路355号雅洲商务大厦3号楼302室,E-mail:15001974225@163.com;
基金：国家自然科学基金资助项目(编号：51878408);

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Experimental study on wind pressure characteristics of metro platform screen doors under variable conditions

Wang Lihui Sun Bin Huang Shumin Zeng Xiaoyang Wang Bo Zuo Hu Zhang Junying

(University of Shanghai for Science and Technology Shanghai Metro First Operation Co., Ltd. Shanghai Dongtan Construction Group Co., Ltd.)

Abstract: Aiming at the wind pressure problem of the platform screen door, by changing the eight operating conditions of the mechanical air supply and exhaust system in the public area of the station, the upper and lower heat exhaust systems in the track area, and the ventilation system of the piston air shaft, the wind pressure of the platform screen door under normal train operation is tested. The results show that under the variable conditions of the mechanical air supply and exhaust system in the public area of the station, the maximum difference of wind pressure experienced by the platform screen doors in different positions at the same time is nearly 50%, which cannot be used as an effective means to control the wind pressure of the platform screen door. Under the variable conditions of the upper and lower heat exhaust systems in the track area, opening the upper heat exhaust system can reduce the maximum positive pressure value of the middle platform screen door, but the effect is not good for both sides of the platform screen door, so the upper heat exhaust system in the track area cannot be used as an effective means to control the wind pressure of the platform screen door. Under the variable conditions of the connecting air valve of the double-piston air shaft, opening the connecting air valve can effectively reduce the wind pressure value of the platform screen door, the peak value of positive pressure can be reduced by 88.3%, and the peak value of negative pressure can be reduced by 50%.

Keywords: metro; platform screen door; wind pressure; variable condition; air supply and exhaust; upper and lower heat exhaust; piston air shaft; connecting air valve;

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