城市综合管廊通风系统设计要点及思考

Design essentials and considerations of ventilation system of urban utility tunnel

从城市综合管廊内的火灾特点、通风系统原理、通风节点形式、通风系统运行模式以及通风系统控制策略等方面介绍了城市综合管廊通风系统的整体设计思路。对不同舱室的通风节点设置、通风节点处阀门和风机设备选择及不同舱室变工况切换控制等影响通风系统设计的关键问题进行了分析。

Presents the overall design ideas of ventilation system of urban utility tunnel from the aspects of fire characteristics, ventilation system principle, ventilation node form, ventilation system operation mode and ventilation system control strategy. Analyses the key problems affecting the ventilation system design, such as the setting of ventilation nodes in different cabins, the selection of valves and fans at ventilation nodes and the control of variable working conditions in different cabins.