不经FAS的防烟排烟系统直接启动控制方案

摘要

It is required by the GB 51251-2017 "Technical Standard for Building Smoke Protection and Exhaust System" that the pressurized fan should be started automatically when the normally closed and pressurized damper opens, and the smoke exhaust fan as well as the makeup fan should be started automatically when the smoke damper or the smoke exhaust inlet opens.In order to meet the requirements, three control schemes of different control voltages were proposed, and the advantages and disadvantages were further compared.The results show that the control scheme of control voltage DC 24 V with more reliability and security is the most suitable scheme, which is applied in the smoke protection and exhaust system.%针对GB 51251-2017《建筑防烟排烟系统技术标准》中要求"常闭加压送风口开启时直接自动启动加压风机"和"排烟阀或排烟口开启时直接自动启动排烟风机、补风机",提出3种控制方案,并对比各方案的优缺点,结果表明DC 24 V控制方案可靠性和安全性较高,更适宜应用在防烟排烟系统直接启动中.