Commissioning methods for industrial centrifugal fans 

 Industrial centrifugal fan debugging is qualified, related to the safety of life and property, the orderly development of production work, the normal operation of the fan, and many other aspects, so the appropriate debugging method is particularly important. Industrial centrifugation The fan is mainly composed of complex mechanical equipment such as air inlet, air valve, impeller, motor and air outlet. Under different environmental conditions, the use effect of centrifugal fan is also different. Therefore, industrial centrifugal fans are used In the process, the equipment should be debugger according to the situation, in order to achieve a good use effect, the specific debugging method and everyone analysis: 1. Industrial centrifugal fans allow full voltage starting or step-down electric, full voltage starting current is about 5~7 times the rated current, and step-down starting torque is proportional to the square of voltage. When the capacity of the grid is insufficient, it should be reduced Pressure start. 2. Before the industrial centrifugal fan is tested, it should be clear about the specific situation of the product and check whether the wiring method is consistent with the wiring diagram; It is necessary to carefully check whether the working voltage of the power supply to the fan meets the requirements and whether the power supply is out of phase Or with the same phase, the capacity of the electrical components meet the requirements. 3. At least two people shall be present during the test run. One person shall control the power supply and the other person shall observe the operation of the fan. After running for 5 minutes, stop the machine and check whether the fan has any abnormal phenomenon No abnormal phenomenon before starting operation. 4. When the industrial centrifugal fan reaches the normal speed, the input current of the fan should be measured whether it is normal. The running current of the industrial centrifugal fan should not exceed its rated current. If the running current exceeds its rated current, check the supply Whether the voltage given is normal. 5. When the two-speed industrial centrifugal fan is tested, the low speed should be started first to check whether the rotation direction is correct; When starting high speed, the fan must be stationary before starting, in order to prevent high speed reverse rotation, causing switch tripping and motor damage Damage. 6. If the air inlet of the industrial centrifugal fan is fully open for operation, the motor is in danger of damage. Close the valve on the fan inlet or outlet pipe during the fan test run, and gradually open the valve after operation to achieve the required work And pay attention to whether the fan running current exceeds the rated current. Industrial centrifugal fan is a mechanical device that uses energy conversion to discharge gas. Its main function is ventilation, dust discharge and cooling. It is mainly used in mines, tunnels, cooling towers and buildings The contraction is similar. Centrifugal fans generally can not be used directly, after installation to debug in order to make it achieve great efficiency.