Exhaust fan for the selection of the main control parameters temperature, air flow, total pressure, efficiency, noise, electrical power, speed and shaft power. Exhaust fan at a temperature not higher than 85 ℃ conditions should be long-term normal operation. Exhaust fan shall ensure that: When the transmission medium temperature at 280 ℃ when continuous work 30min, and still continuously at medium temperature cooling to ambient temperature during normal operation. At rated speed in the work area exhaust fan design, fan pressure curve measured with the description given in the curve should meet the following requirements: air flow exhaust fan fire which shall comply with the provisions of exhaust fan fire is now gradually a wide range of applications, ultra-high performance for the fans, exhaust fans believe that prices will not say, we are very understanding, because the blower fan has now become the industry leader, we the fans are very recognition, which and strict rules on the fan exhaust fan fire are inseparable. What about fire exhaust fan air flow which should be consistent with the provisions of the exhaust fan, we take a closer look at: 1, responsible for two or more partitions exhaust smoke, smoke partitions shall largest area per square meter lot to 120m3 / h calculation. 2, responsible for a smoke or smoke partition headroom greater than 6.0m not draw smoke partition room, per square meter area shall be not less than 60m3 / h Computing (single wind turbine should be less than the minimum amount of smoke 7200m3 / h.3, atrium exhaust fan when the volume is less than 17,000 sales, the amount of smoke six times its volume / h ventilation calculation; when the atrium volume greater than 17,000, the amount of smoke four times its volume / h ventilation calculation; but not less than the minimum amount of smoke 102000m3 / h; 4, high-rise building with podium stairwell and front room, elevator before the fire room or shared room, when the podium over parts use When outside the window can be opened for natural smoke, skirt part does not have natural draft conditions, the front room or shared room should set local mechanical exhaust facilities, which according to the amount of smoke before the room less than 60m3 per square meter / h calculated Sheng clean air conditioning (Figure) _ _ exhaust fan exhaust fan price offered by the Texas Air Conditioning Equipment Co., Sheng purification. Texas Air Conditioning Equipment Co., Ltd. Sheng-purification (www.dzhffj.com) located in Dezhou City, Shandong Province wucheng acres of Industrial Park scraps and development, Sheng purification of air conditioning has in the wave of market economy in the fan, ventilation equipment high visibility, enjoy a good reputation. Suntown clean air conditioning made the whole network business alliance certification, marking our service and management level has reached a new height. Suntown clean air-conditioning staff willing to work with all people of insight and common development, for a better future.