1. Negative pressure fans can be divided into iron boxe […]
1. Negative pressure fans can be divided into iron boxes (common fans), glass fiber reinforced plastic fans, plastics, aluminum, stainless steel fan fans, etc.
2. The main structure of the negative pressure fan. Fans can be classified according to the direction of airflow, and are divided into main flow, diagonal flow, mixed flow, centrifugal and axial negative pressure fan cross flow type.
3. According to the flow direction after the airflow enters the impeller, it can be divided into axial flow fan, centrifugal fan and oblique flow and mixed flow fan.
4. The fan can also be a horizontal pressure or the pressure of two or more fans. 4-72 is single-stage compression, such as high-speed wind turbines are multi-stage fan pressure.
5, the fan can be divided into axial flow fan, mixed flow fan, roof fan, air conditioning fan and so on.
6. Fans and fans can be divided into low-pressure medium-pressure fans and high-pressure fans according to pressure.
7. According to the outlet pressure (pressure): fan (1 or below). 50,000 Pa), fan (1.5 ~ 350,000 Pa), compressor (350,000 Pa) or higher.