The company specializes in producing damper fire control valve exhaust valve exhaust dampers axial fan Francis fan oblique flow fan fire temperature exhaust fan wind chassis positive pressure blower pressure multi-leaf blower outlet pressure outlet pressure delivery outlet Fire Equipment leafy exhaust port plate discharges new air unit new wind ventilators air conditioning accessories and other products air conditioning fire products, the "national fixed fire extinguishing and fire-resistant components of Quality Supervision, Inspection and Testing Center," qualified, you can fire at China Internet Network products usually We single-speed exhaust fan fire, be sure to set the high-rise building fire elevator according to specification exhaust fan fire offer, which we should have learned that before the fire elevator room supply exhaust fan, also known as the elevator hall, if and stairwells are combined, then called shared room, you know this is the front room when the fire evacuation experience provides a temporary buffer space, by the fire partially into the stairs between excessive exhaust fan evacuation Therefore, such a space requires a certain degree of air flow. In addition we should be most aware of is that so-called positive pressure air supply, it is to use machines to the outside in the fresh air is piped into the ventilation requirements of this site, this is called positive pressure air supply. Only after more than learn the basics before we can complete the entire specification leafy pressure delivery outlet installation. Two, SWF series mixed flow fan characteristics??? Centrifugal fan can be made of the right-handed and left-handed two types. Elevation from the motor side, clockwise rotation of the impeller fan coil, called the right rotary blower, counter-clockwise rotation, called L Working Principle? centrifugal fan is based on the principle of potential energy is converted to kinetic energy, the use of high-speed rotation of the impeller the gas to accelerate and then decelerate, change the flow of the kinetic energy into potential energy (pressure). In the single-stage centrifugal fan, the gas enters the impeller from an axial exhaust fan fire, change the gas flowing through the impeller radially, and then into the diffuser. In the diffuser, the gas flow direction changes cause deceleration that the deceleration effect the kinetic energy is converted into pressure energy. Pressure increased mainly in impeller, diffuser happens next in the process. In the multi-stage centrifugal fan, the reflux stream allows the impeller to the next, resulting in a higher pressure. Features specification exhaust fan fire, exhaust fan HTF Hefei, Chuzhou exhaust fan fire provided by the Shandong Air Conditioning Equipment Co. GREAT fan. Shandong GREAT Fan Air Conditioning Equipment Co. (www.greatfengji.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. GREAT leadership in the staff warmly welcome all inquiries negotiations to create a better future GREAT.