1. Wide range of applications: according to the different requirements of senior civil, use of variable speed or multi-speed drive form, the heart reached one machine (ie, when used through ventilation and fire temperature exhaust) purposes; leaf type into the shaft Streaming (HTF (GYF) -I, II) and Francis HTF (GYF) -IG, also making roof type, style silencer. 2. High efficiency: This series of axial fan through the use of advanced CAD software, multi-objective optimization design of new products developed by high-temperature exhaust fan fire to the measured efficiency of greater than 80% indicates that the fan, and some big machine number is greater than 85%, and has a flat efficiency curve characteristics are conducive to energy conservation; 3. easy installation, covering less than the centrifugal fan: The fan base in the form of axial fan or mixed flow fans, can be connected directly to the tube or wall mounting with the wind, install the form vertical or horizontal. Largely saving footprint. Fire exhaust fan set Location: Distance tunnel fire exhaust fan should not be too close to the side wall, so as not to affect the ventilation exhaust fan fire tunnel wall arranged for a minimum distance from 20 cm, rescue "sentinel" setting will tunnel into. Disaster area different exhaust fan, make full use of deviated and both ends of the tunnel exhaust fan fire rescue station designated as the wind and smoke into the new channel two-speed exhaust fan fire price, ventilation must be maintained at a positive cross-channel port pressure state, to prevent flue gas flow channel. ventilation system blowing from the direction of the incident tunnel through a secure tunnel to cross the channel, inhibiting the flue gas into a cross-channel and tunnel accident did not occur to meet the evacuees facing the new air into the cross-channel and security the tunnel, waiting area while ensuring the required fresh air tunnel according to different regions use different incidents of disaster prevention and Ventilation. "sentinel" Disaster ventilation scheme implemented when the train rescue point in the "sentinel" range for all Cross liaison channel settings can be inverted to obtain a fresh wind from the fan inside the secure tunnel. Fire roof exhaust fan, exhaust fan, Hengshui City, Chen Yu-conditioning services provided by Wu Cheng Chen-yu air-conditioning Limited. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chenyu air conditioning and you hand into the brilliant, for a better future!