[Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - the fan] fan and turbine compressor works basically the same, but due to the low gas flow rate, pressure changes little, generally do not need to consider gas ratio changes in content, i.e. the gas as the incompressible fluid handling. Fan and fan relations: Our fans are gas compression and gas transportation machinery habits short glass blower, commonly referred to as the fan including fan heater, blower fan, compressor and Roots blower, but does not include a piston compressor positive displacement blowers and compressors. Fans are fans of a product type, but people usually call for the fan ventilator tube, both fan is another name for the fan. [Tianjin Jinzhong Ji HVAC purification equipment to recommend the star product - Fan] 1892 France developed into a cross-flow fan; in 1898, the Irish people to design a centrifugal fan blades 西罗柯 ago, and for all countries widely used; the 19th century, has been used in mine ventilation axial fan and metallurgical industry blast, but the pressure is only 100 to 300 Pa, efficiency is only 15 to 25 percent until the 1940s before they get later than the rapid development. 1935 fire temperature exhaust fan, the German first axial flow fan for boilers and other pressure ventilation and the wind; in 1948, Denmark made the running variable pitch axial flow fan; rotating axial fan, Meridian accelerate axial fan, oblique flow fan and cross-flow fans have also gained development. In the direction of gas flow, can be divided into centrifugal fan, axial, mixed flow and cross-flow and other types. Axial fans, Tianjin Jinzhong Ji ventilation engineering (certified), provided by the Tianjin Tianjin Jinzhong Ji HVAC blower purification equipment. Tianjin Jinzhong Ji HVAC purification equipment Limited (www.Jzjnt.com) is a leader in Tianjin, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the group leadership with the staff warmly welcome all inquiries negotiations to create a better future for the base.