Tips on using the fan efficiency of the loosening machine!

In order to improve the efficiency of the fan of the opener and reduce noise, the air in the fan channel should be kept as stable as possible without eddy current, flow separation and impact when passing through the fan, so that the air flow state is stable. Therefore, the juvenile shape of the channel should be designed to be streamlined. In addition to the important influence of the lateral curve of the opener volute, the design of the air inlet of the impeller front disc is also very important. One fan and two identical fans work side by side, and the mechanical transmission loss is small; at the same time, the double-suction phoenix fan has two symmetrical impellers, so that the axial forces offset each other, so that the bearing has no axial thrust, thereby extending the bearing life. Compared with the combined use, it has a small volume and light weight. The basic shape of the air intake hole can be divided into straight cylinder, oblique cone and streamline (according to the nozzle design), see Figure 5-20. By comparing the flow state and resistance of the air in the air intake, it is concluded that the straight cylinder type is poor, the cone type is good, and the streamline type is ridiculously good. However, from the production process point of view, the straight cylinder type is green and simple, and the streamline type has higher green production requirements. The blades on the impeller of the opener are fixed between the front and rear discs, and a small round hole connected to the drive shaft is fixed in the middle of the disc. There is a large round hole in the middle of the front piece connected to the air intake, and its geometric shape can be divided into flat, conical and streamlined shapes, as shown in Figure 5-21. Since the air has to turn 90° after entering the impeller, its flow state is relatively stable and the loss is small. The conical shape has a correction error, and the flat shape is larger. From the production process, the flat front disc is simpler to process, while the streamlined front disc has stricter production requirements. So the above is the relevant content about the use of the fan of the opener, I hope you can use it as a reference! I still want to remind everyone that the use of the opener facilitates our resource recycling, and we can pay more attention to it! .