Views: 0 Author: Site Editor Publish Time: 2023-07-21 Origin: Site
1. The influence of the temperature and humidity of the inlet air of the axial flow fan on the flow rate conforms to the gas state equation. In actual production, the change value can also be compared with the calibration data of the surge line of the unit.
2. Since the axial flow fan mainly relies on the expansion of the cascade to increase the gas pressure, the flow attack angle is very sensitive to the performance of the cascade. In practical applications, generally by changing the static blade cascade angle (commonly referred to as the static blade angle) to change the airflow attack angle, so that the air volume of the unit changes to adjust the air volume, to meet the process requirements of the premise to reduce power consumption.
3. The blade profile of the dynamic and static blades of the axial flow fan determines the stage pressure ratio and efficiency of the blade cascade, and determines the overall performance of the fan. At present, most of the dynamic and static blades of axial flow fans are of ternary flow design, and the efficiency of the whole machine is high. However, due to the high precision, if the external interference factors cause blade damage or blade fouling, that is, the blade profile changes, then the compression ratio and efficiency of the compressor will decrease, and the blade fouling problem will also cause the operation range of the axial flow fan Narrowing, in extreme cases will affect the dynamic balance of the shafting and cause a shutdown accident.
