地下车库诱导式通风系统的研究  

A Study of Induced Ventilation in Underground Garage

作　　者：郭海丰[1] 杨钰杰 杨瑞妙 GUO Haifeng;YANG Yujie;YANG Ruimiao(School of Municipal and Environmental Engineering,Shenyang Jianzhu University,Shenyang 110168,China)

机构地区：[1]沈阳建筑大学市政与环境工程学院,沈阳110168

出　　处：《建筑节能（中英文）》2024年第11期67-73,共7页Building Energy Efficiency

摘　　要：为了利用流体力学技术探讨诱导式通风系统在单车道出入口的地下车库的可行性问题,在入口坡道处设置诱导风机,从坡道入口引入新风,探究入口坡道处诱导风机的布置及车库内横、纵向间距的布置对车库内通风效果的影响,同时对原有的风管式通风系统的通风效果进行研究,在保证两种系统送风量相同的前提下,达到相近的通风效果,分析两种系统的经济能耗。结果表明:坡道处的诱导风机在风机尾部距离坡道入口位置为0 m,下倾角为10°时,引入的新风量最大为3119.3 m^(3)/h;在风机尾部距离坡道入口为3 m,下倾角为5°时,引入的新风量与风管式通风系统相同;同时,车库内的诱导风机的布置在横向间距为7 m,纵向间距为11 m时,与风管式通风系统效果相近,初投资和运行费用仅占之前的20%左右,运行经济,节省费用可观,具有很高的推广价值。The purpose of this study is to explore the feasibility of induced-ventilation system in underground garages with single-lane entrances and exits by using hydrodynamics technology,set induction fans at the entrance ramp,introduce fresh air from the entrance ramp,and explore the influence of the arrangement of induction fans at the entrance ramp and the arrangement of horizontal and longitudinal spacing in the garage on the ventilation effect in the garage.Meanwhile,the ventilation effect of the original duct ventilation system is studied,and the similar ventilation effect is achieved under the premise of ensuring the same air supply volume of the two systems,and the economic energy consumption of the two systems is analyzed.The results show that the maximum new air volume is 3119.3 m^(3)/h when the tail of the induced fan is 0 m away from the entrance of the ramp and the downdip Angle is 10°.When the tail of the fan is 3 m away from the ramp entrance and the downdip Angle is 5°,the amount of new air introduced is the same as that of the duct ventilation system.When the induction fan in the garage is arranged with the transverse spacing of 7 m and the longitudinal spacing of 11 m,the effect is similar to that of the duct ventilation system.The initial investment and operating cost only account for about 20%of the previous one,which is economical and saves considerable costs.It has high promotion value.

关 键 词：诱导通风 速度 温度 污染物浓度 

分 类 号：TU962[建筑科学]