Cross flow fans are widely used, and some problems will inevitably occur in the process of long-term use. For example, cross flow fans sometimes experience surge. The surge phenomenon of the fan is like asthma, the fan periodically blows out and reverses the flow, and severe surge can also cause fatigue damage to the cross flow fan blade.

When the cross flow fan has surge phenomenon, there will be the following three manifestations.

1. Noise increases.

When the cross flow fan is working normally, the noise is relatively small. However, when the surge phenomenon occurs, the inside of the fan sometimes makes a dull sound, and sometimes makes a sharp sound, and the sound is relatively loud.

2. Vibration intensifies.

When the cross flow fan has surge phenomenon, there will be obvious vibration phenomenon.

3. Difficulty reading.

When the surge phenomenon occurs in the cross flow fan, the value displayed by the micro pressure gauge and the rotational speed torque meter changes rapidly, and the range and amplitude of the change are very large, showing a periodic change.

So for the surge phenomenon of the cross flow cooling fan, there are the following solutions.

1. The ambient temperature should be 75ºC≥-40ºC.

2. The industrial gas passing through the cross flow fan is not allowed to contain strong acid, strong alkali and various solutions.

3. Dust and other sundries are not allowed to fall into the fan, so as not to cause the fan to burn and the fan blades to break.

4. Before installation, check whether the fan is damaged or deformed due to packaging and transportation. If there is damage or deformation, it should be repaired and installed.

5. Check whether the parts and screws are loose, and whether the blades and the air duct collide or shift. If they collide or shift, they should be adjusted and installed.

If you would like to know more about mini cross flow fans and other types of fans, please feel free to contact us.

First of all, the blade area of the cross flow cooling fan is large. For example, compared with the sharp blades of the jet fan of the traditional fan, the blade of the mini cross flow fan is wider, which means that the air area in contact with the fan is increased, so that more air can be pushed or attracted.

Secondly, the increase in the area of the cross flow fan blades will provide more airflow power. Taking our metal cross flow fan as an example, according to Bernoulli's law, when the fluid passes through a contracted channel, the flow rate will increase and the pressure will decrease. Wider blades provide more area, allowing airflow to contract and accelerate as it passes through the blades. This acceleration process causes the airflow speed to increase and creates negative pressure, which in turn draws more airflow near the blade.

Finally, our cross flow fan 12v provide more energy transfer: the wider blades can hold more airflow and transfer more kinetic energy into the air. When the blades pass through rotation or vibration, they are able to convert mechanical energy into the kinetic energy of the air stream, resulting in greater air volume. And the cross flow fan 12v Price is very competitive.

Chungfo engaged in mini cross flow fan wholesale for many years, has a very professional production technology and experience, to provide customers with cross flow cooling fan prices are the most cost-effective. If you have the need to buy tangential cross flow fans, you can also contact us at any time!