For the fan, the most you hear is the negative pressure fan, but what other types? Today we will look at the classification of the fan, and what are the installation points.

What are the classifications of fans?

1, the fan can be divided into several types according to the use of materials, such as iron shell fan (common fan), fiberglass fan, plastic fan, aluminum fan, stainless steel fan, etc.

2. Fan classification can be divided into centrifugal type, axial flow type, diagonal flow type (mixed flow type) and cross flow type according to the direction of gas flow.

3. The fan is divided into: axial flow fan, centrifugal fan and diagonal flow (mixed flow) fan according to the flow direction of the airflow entering the impeller.

4. The fan is divided into a press-in type local fan (hereinafter referred to as a press-in fan) and an explosion-proof motor placed outside the flow channel or in the flow channel according to the purpose, and the explosion-proof motor is placed in the explosion-proof sealed cavity of the extraction type local fan (hereinafter referred to as extraction). Fan).

5. The fan can also be divided into single-stage, double-stage or multi-stage pressure fans according to the form of pressure. For example, 4-72 is a single-stage pressurization, and a high-end fan is a multi-stage pressurized fan.

6, the fan can be divided according to the purpose: axial fan, mixed flow fan, roof fan, air conditioning fan.

7. The fan can be divided into negative pressure fan, low pressure fan, medium pressure fan and high pressure fan according to pressure.

Negative pressure fan installation points

After purchasing a negative pressure fan, the problem is the installation problem. Let me introduce the installation points of the negative pressure fan. Yuyao air cooler, Cixi air cooler

1. If the fan is used in the process of using the inverter, the fan needs to be operated according to the requirements of the inverter to prevent the operation failure from affecting the service life.

2, although the installation of wind pressure fan is not very complicated, but we still recommend to find a professional installation staff, at least they know the hydropower installation knowledge, will not give you an accident during the installation process.

3. After the negative pressure fan is installed, it must be checked whether any tools or other items are left inside, so as not to affect its use. If some parts are too tight during the running process, it is recommended to turn off the power directly and solve the problem before continuing to use.

4. There should not be too many obstacles around the negative pressure fan, especially if there are too many obstacles within 3 meters. If there are too many obstacles, there will not be too much suction guarantee, which affects the ventilation. effect.

5. Before using the negative pressure fan for the first time, be sure to check that each component is intact. If a part is loose, it should be corrected before use. In the process of use, it is necessary to regularly check the integrity of each component, which can also increase the life of the fan.

6. The operation of the negative pressure fan needs to be in a relatively closed environment. The doors and windows on the same side are preferably closed, and the opposite doors and windows are preferably opened.

7. When installing the negative pressure fan, be sure to pay attention to its horizontal position to avoid tilting and affect its normal use.

8. The adjusting bolt must be in a convenient position, because in many cases, we must adjust the tightness of the belt as needed.

9. If the noise is too large during operation, such as the phenomenon of “beep” or vibration of the motor, stop the operation immediately and look for professional personnel to avoid damage to the negative pressure fan.

10. The wires around the negative pressure fan should preferably have a casing or a dark groove to ensure safety during use.

The type of fan and the installation points are introduced here. If you have any questions, please contact us.