Induced draft fan is widely used in factories, ventilation mines, tunnels, cooling towers, vehicles, ships and buildings, dust emission and cooling; boiler and industrial furnace ventilation and the wind; air-conditioning equipment and household appliances and cooling equipment ventilation; grain drying and sending; wind tunnel source and inflatable hovercraft and propulsion. Induced draft fan and turbine compressor works basically the same, but due to low gas flow rate ancient county furnace fan, pressure changes little, generally do not need to consider changes in specific volume of gas that the gas as an incompressible fluid handling. Typically Industrial Boiler Fan motors are constant speed operation, and then by changing the opening of the tailgate door entry draft fan to adjust the amount of wind. To improve the efficiency of the fan motor lead, and save energy. One can speeder on the induced draft fan motor coat. Adjust the speed control device according to the situation of work to meet the speed requirements of the working conditions. The second is to use the drive for transformation induced draft fan PuXian negative fan, do not have to make big changes to the original system, adding a drive cabinet. Prior to blower motor frequency control is not implemented, the general use of "step-down start," Hongdong MV fan, and the normal operation of the motor full pressure, running at full speed, and the size of the induced draft fan air flow through the throttle to regulation. In general, the degree of throttle opening is 50% to 80%, the motor can only be run at full capacity, the low work efficiency of the motor, resulting in great waste. The basic principle of frequency control technology is directly proportional relationship between the motor speed and the power supply input frequency; the power supply frequency by changing the motor speed to achieve the purpose of changing the motor. Old County furnace draft fan | draft fan | Shanxi nagorye blower provided by the Shanxi nagorye blower limited liability company. Shanxi nagorye Blower Co., Ltd. (www.sxgfj.cn) (www.sxfjgs.com) strong, credible, Shanxi Xinzhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead nagorye blower and you hand into the brilliant, for a better future! You can also access (www.sxfjgs.com/supply_details_44757860.html), for more information about the company.