HTFA型轴流式消防排烟风机Atypy fire-control fan for extraction smoke
用于有消防要求的建筑物,如地铁、隧道、高层建筑、体育馆、地下商场、车间、烘箱等场合的消防排烟和通风换气。-般采用双速电机,平时低速运行作通风换气用,如一旦发生火灾,通过电控系统自动切换成高速运行，在半小时内迅速排除烟气，使火场内人员安全撤离,保护国家和人民的生命财产安全。
输送空气和其它不自燃,对钢材无腐蚀性气体,气体内不允许有粘性物质,所含的尘土及硬质颗粒物不大于150mg/m',作通风换气时进气温度不得超过80°C ,作消防用时,烟气温度应在280C时能连续运30分钟以上。
Itis sutable for ventiation and fre contol of tll builings, subwaytunne, underground stores, gymnasia, etc. This fan is set up whdouble- speed motor, it operates at a low speed normaly and sedfor ventiation. Once ourrence afire, the fan is automatcalytransterred into high-speed and discharge smoke by the electrccontrol system, which fciltates safe evacuation of personnel on thefire spot.The transporting medium is air or other non-spontaneous-combustion and non- explosive - combustion air with no ham 10human. The air transferred shall not contain any adhesive matenal,dust and grain and the concentration shall not exceed 150mgim3awhen the temperature shall not exceed 80C . When used for frecontrol, the fans can run more than 30 minutes continually under thecondition that the air and smoke temperature is at 280C