Precautions for the detection method of centrifugal fan

　　Precautions for the detection method of centrifugal fan

　　Centrifugal fans are widely used in real life, such as aviation engines, automobile engines, etc. The production of centrifugal fans is carried out in an orderly manner, but the structure of centrifugal fans is relatively complicated, and the key points are composed of air inlets, electric dampers, centrifugal impellers, motors, and vents. Under different circumstances, the actual effect of the centrifugal fan is not the same. So how to adjust the centrifugal fan to the best condition? First of all, this is the mechanical equipment that uses the keyed chemical energy to increase the air pressure and send the steam in parallel. This is the driven fluid machine. The steam is accelerated by a high-speed centrifugal impeller, and then the speed is reduced and the inflow is changed. Mechanical energy is converted into gravitational potential energy.

　　Let's see how to carry out adjustment?

　　First, the centrifugal fan allows the motor rated power to start or the reduced voltage start type. The current when the motor rated power starts is about 5-7 times the rated voltage. The reduced voltage starting torque is proportional to the working voltage square meter. When the power grid volume is insufficient At the time, the step-down start should be selected.

　　Second, at the time of trial operation, check whether the wiring method and the same wiring method are the same; check whether the operating frequency of the switching power supply of the centrifugal fan with the balance of supply and demand, the volume of the electrical components are in compliance with the regulations, and whether the switching power supply is in phase or The same location.

　　Third, the total number of people during the trial operation is about two people, each operating the switching power supply and observing the operating conditions of the centrifugal fan, and immediately shutting down and checking if an abnormal situation is found.

　　Fourth, during the trial operation of the two-speed centrifugal fan, first start the low-speed gear to see if the rotation direction is appropriate; when starting the high-speed, be sure to restart the centrifugal fan after standing still to avoid power switch and motor damage.

　　Fifth, when the centrifugal fan exceeds all normal speed ratios, the input current of the centrifugal fan should be accurately measured, and the operating current cannot exceed its rated voltage. If it exceeds its rated voltage, check the working voltage that balances supply and demand.

　　Sixth, the centrifugal fan requires the rated power of the motor. It means that under the necessary load, it is best to close the gate valve on the inlet or outlet pipes of the centrifugal fan during the trial operation of the centrifugal fan, and gradually open the gate valve after operation. Pay attention to the operating power of the centrifugal fan. Is the flow rate exceeding the rated voltage?

　　The left and right are the adjustment methods of the centrifugal fan. Proper adjustment can improve the high efficiency of the centrifugal fan. Improve people's productivity. To ensure the safety of life, centrifugal fans are indispensable for their service life and normal maintenance. Appropriate adjustments are indispensable. Learning proper adjustments can make you stronger in work. AFL centrifugal fans are committed to the market sales and solutions of axial fans and centrifugal fans. Service items.

　　AFL fan products mainly cover: four types, axial fan, multi-blade centrifugal fan, medium and high pressure industrial centrifugal fan, cabinet centrifugal fan; covering industries: kitchen exhaust, industrial dust, high pressure blast, boiler induction Wind, environmental protection equipment, mechanical equipment, building ventilation, factory ventilation, air conditioning equipment; it can meet the working conditions: explosion-proof working conditions, anti-corrosion working conditions, high temperature working conditions, moisture-proof working conditions and other service areas. Welcome customers and friends to call and post to discuss cooperation, thank you.