Fire exhaust fan diffuser has mainly what type? Need to meet the expansion of the use of fire exhaust fan when the pressure is, however, the fire temperature exhaust fan in the use and operation of the diffuser also have certain requirements, and different types of diffuser, there are different using the occasion today, we work together to understand it. Fire exhaust fan diffuser configuration can further kinetic energy is converted into pressure energy, manufacturing exhaust fan, thereby enhancing the fan power, the diffuser are mainly two: 1, fire exhaust fan has a Configuration dispersion shaped outer cylinder and convergent cartridge diffuser, adding a larger area because of the dispersion, so the diffuser effect is better, it applies to the exhaust pipe of a diameter greater than the outer diameter of the fan case. 2, diffuser exhaust fan fire Configuration of having equal diameter of the inner core and the outer cylinder-shaped dispersion, it's not as good as on a diffuser effect, but because it is simple layout technology is also applicable to the diameter of the exhaust pipe greater than the outer diameter of the fan case. The main debugging introduction exhaust fan exhaust fan has now become a major industry has been widely used, we need to debug in the installation process, how to debug the exact value of it, this is a technology live Today as we explain in detail below: First, exhaust fan there are two ways to start full-voltage starting and step-down start, to note that the current total pressure at start-up must be maintained at 5-7 times the rated current, drop pressure starting torque and current proportional to the square. If the network capacity is insufficient, the general use of step-down start. Second, when the two-speed fan test, you should start low and see the direction of rotation is not correct; it is necessary to be the fan stops after the start when the starting speed to prevent the high-speed reverse rotation, causes the switch trips and motor damage. Third, the exhaust fan when the test should be noted that the first carefully read the instructions to see if agreement on the method and the wiring diagram wiring, while also carefully check the fan power supply voltage meets the rated requirements, whether the power phase, with phase anomalies appear, the capacity of member of the HTF temperature exhaust fan, check the electrical compliance standards. Fourth, test number less than two, one control power supply, exhaust fan, a fan who investigate working conditions, exhaust fan types, unusual appearance immediately stop viewing; prime viewing direction of rotation is not correct; after fans began to work, That work should view the current is not balanced, the current is not beyond the rated current; if there is a normal appearance, should stop viewing. After working for five minutes, stopping to view the fan is not abnormal appearance, admit no abnormal appearance then start work. Sheng clean air conditioning (Figure) | HTF temperature exhaust fan | exhaust fan is provided by the Texas Air Conditioning Equipment Co., Ltd. Sheng-purification. Texas Air Conditioning Equipment Co., Ltd. Sheng-purification (www.dzhffj.com) located in Dezhou City, Shandong Province, Wuhan City acres of industrial park. Scraps and development in the wave of market economy, the current clean air conditioning Sheng Tong has a high profile in fan, ventilation equipment, and enjoys a good reputation. Sheng purification of air conditioning made the whole network business alliance certification, marking our service and management level has reached a new height. Sheng clean air-conditioning staff willing to work with all people of insight and common development, for a better future.