城市综合管廊通风系统阻力分析
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摘要
本文分析了现在管廊常用通风方式以及通风系统设计中存在的问题。通过对不同断面,不同长度综合管廊内通风沿程阻力以及局部阻力的估算,分析出了通风系统主要阻力发生位置,同时估算出通风阻力的近似范围,为今后管廊通风系统设计中减小阻力,节省通风能耗以及合理的选择风机压头提供了参考依据。
This article presents the most up-to-date ventilation system of the utility tunnel and existing problems occurred during the utility tunnel ventilation system design. The friction resistance loss and local resistance loss of different cross sections and different lengths are calculated, from which the main pressure loss locations of the ventilation system are identified. At the same time, the approximate pressure loss is also estimated in the ventilation system. This research provides very important reference for the ventilation system design of the utility tunnel in the friction pressure loss reduction, energy saving and appropriate fan pressure head selection.
This article presents the most up-to-date ventilation system of the utility tunnel and existing problems occurred during the utility tunnel ventilation system design. The friction resistance loss and local resistance loss of different cross sections and different lengths are calculated, from which the main pressure loss locations of the ventilation system are identified. At the same time, the approximate pressure loss is also estimated in the ventilation system. This research provides very important reference for the ventilation system design of the utility tunnel in the friction pressure loss reduction, energy saving and appropriate fan pressure head selection.
引文
[1]王恒栋,薛伟晨.综合管廊工程理论与实践[M].北京:中国建筑工业出版社, 2013.
[2]陈虹.共同沟的通风设计[J].建筑热能通风空调.2003,(3):11-12
[3]城市综合管廊工程技术规范(GB50838-2015)[S].北京:中国计划出版社, 2015
[4]陆耀庆.实用供热空调设计手册(第二版)[M].北京:中国建筑工业出版社, 2008
[5]民用建筑供暖通风与空气调节设计规范GB50736-2012[S].北京:中国建筑工业出版社, 2012
[2]陈虹.共同沟的通风设计[J].建筑热能通风空调.2003,(3):11-12
[3]城市综合管廊工程技术规范(GB50838-2015)[S].北京:中国计划出版社, 2015
[4]陆耀庆.实用供热空调设计手册(第二版)[M].北京:中国建筑工业出版社, 2008
[5]民用建筑供暖通风与空气调节设计规范GB50736-2012[S].北京:中国建筑工业出版社, 2012