A fan is a mechanical device used for transporting gas. It is a machine that converts the mechanical energy of an original electric motor into gas energy. The modification of a fan can be based on the design regulations of the fan. The air volume margin of the fan in the supply and induced draft fans is between 5% and 15%, and the air pressure margin is between 10% and 20%. It is difficult for us to calculate the resistance of the pipeline network and the various problems that may arise during long-term operation in fan renovation. We can only try our best to solve some of the problems that we can think of.
We can choose the appropriate fan model based on the maximum air volume and air pressure margin of the system. We can also meet the production process's requirements for air volume by adjusting the opening of the air damper or air duct baffle. This method is called throttling regulation. During the throttling adjustment process of fan modification, the inherent characteristics of the fan remain unchanged. We can increase the resistance of the pipeline by closing the opening of the air damper or baffle. If the resistance is artificially increased, it will increase the loss of the pipeline system, which is not conducive to the energy-saving operation of the fan.
If a frequency converter is used for the transformation of the fan, it can quickly calculate the actual active power based on the variable torque characteristics of the fan, enabling the fan to achieve automatic energy-saving operation and achieve energy-saving effects. Moreover, the frequency converter adopts the inverter working characteristics of AC, DC, and AC, so the motor has the function of soft start and soft stop when starting or stopping, which can greatly reduce the impact of motor starting on the power grid and improve the power factor of the fan.
After the transformation of the fan, with the protection of the frequency converter, it will not experience tripping, overvoltage, undervoltage, overload, overcurrent, overheating and other situations during operation. Therefore, many manufacturers now apply frequency converters when carrying out fan transformation. If you need fan modification, you can contact Shengyuan Technology, and we will provide you with 24-hour one-on-one service. We look forward to working with you.
