Analysis on Several Requirements in the Trial Production of Special Fans
The size and shape of the fan impeller must be inspected according to the sample; the outer edge of the impeller should be turned; the impeller must be dynamically balanced in addition to static balance. The assembled fan should be tested on the test bench for full performance. It is mainly tested whether the efficiency of the original selected fan and its pressure can meet the requirements of the total resistance of the wind network when it is efficient. If there is a deviation, it will be corrected. Correct the fit width between the impeller inlet and the current collector. The fit width should be at least 3-6. Correct the radial clearance between the impeller inlet and the current collector. The smaller the gap, the better, but after the clearance is reduced, the technical requirements for production are also improved accordingly, generally 1-2m is preferred. The clearance correction of the mouthpiece area between the outer casing and the fan impeller Sichuan vacuum pump must be cautious and repeated test; experience has proved that reducing the gap here can increase the wind pressure and efficiency of the fan, but the noise of the fan is also increased, and the fan must be Correction is allowed within the allowable range of noise. Without changing the size of the impeller, increase the size of the front and rear discs by 6-12mm at the same time, and correct the size of the front cover disc to form a voltage regulator zone, which can effectively improve the efficiency and pressure of the fan and reduce the aerodynamics. noise. After the above several corrections, the efficiency of the high-efficiency point of the special fan can generally reach or exceed the efficiency of the original selected fan. After the trial production test is correct, the pattern of the special fan can be finally determined before the small batch production can be put into production. The special fan is highly compatible, and the dry screw vacuum pump can improve the safety and reliability of the operation of the flour processing equipment, and the energy saving effect is remarkable; improving the advanced performance of the comprehensive technical performance of the flour processing equipment is an accessory product that should be promoted and promoted. The batch size of the special fan depends mainly on the batch size of the flour processing equipment. It should be complemented and updated with the updated flour processing equipment. In the design and development of the special fan, the high-efficiency point pressure should be higher than the total resistance in the pneumatic conveying air network, generally about 15% higher, to ensure the reliability of the pneumatic conveying wind network operation. The transmission mode of the special fan and the motor generally adopts the belt transmission mode, which can easily change the rotation speed of the fan to meet the adaptability requirements of a multi-purpose machine. With the development of science and technology, conditional units or individuals can use microcomputer processing technology to input relevant parameters and aerodynamic diagrams of existing fan-type spectrum and related calculation formulas into microcomputers, using microcomputer processing technology. It can reduce the development cycle of special fans, save manpower and material resources, and promote the promotion of special fans. Mini Laser Engraving Machine ,Mini Metal Laser Engraving Machine,Metal Cutting Laser Machine,Mini Laser Cutting Machine Jinan Bodor CNC Machine Co., Ltd. , https://www.lasercuttings.nl