Do negative pressure fans have specific maintenance and cleaning requirements to ensure long-term reliable operation?

Negative pressure fans play a key role in medical, building construction and environmental control to control the flow of air and the diffusion of pollutants. In order to ensure their long-term reliable operation, negative pressure fans need regular maintenance and cleaning. The following will introduce you to the maintenance and cleaning requirements of negative pressure fans, and how to ensure that their performance continues to be stable.

1. Clean the cooling medium regularly

Negative pressure fans usually use a wet cooling medium, such as a water curtain or humidity control paper, to purify the air and reduce the temperature. These cooling media tend to accumulate dust, dirt and microorganisms, so they need to be cleaned regularly. The steps to clean the cooling medium include:

Turn off the negative pressure fan and disconnect the power supply.

Remove the cooling medium and rinse with water to remove dirt and dust.

Wipe the surface of the cooling medium with a mild cleaner to remove stubborn stains.

After drying the cooling medium completely, reinstall it.

2. Clean the filter

Negative pressure fans are usually equipped with air filters to prevent contaminants from entering the fan system. The filter will clog over time, affecting the performance of the fan. Regular cleaning or filter replacement is the key to maintaining fan operation. The steps are as follows:

Turn off the negative pressure fan and disconnect the power supply.

Remove the filter and clean it with a vacuum cleaner or water until the dirt is completely removed.

If the filter is broken or cannot be cleaned, consider replacing it with a new one.

3. Check the drainage system

Negative pressure fans usually produce a large amount of water vapor, which needs to be discharged through the drainage system. Ensure that the drainage system is unimpeded to prevent water leakage and damage to the fan. The steps to clean the drainage system are as follows: Check the drainage pipes to ensure that they are not blocked or bent to ensure that water can be discharged smoothly.

Periodically check that the pump is working properly to ensure that the water can be effectively pumped to the cooling medium.

4. Keep the body clean

It is also important to keep the body of the negative pressure fan clean. Wipe the housing and control panel with a soft, damp cloth to remove dust and stains. During the cleaning process, ensure that water does not penetrate the electrical parts to prevent failure.

5. Check the mechanical parts regularly

Check the mechanical components of the negative pressure fan, such as the fan, motor and control system regularly to ensure that they are working properly. If any fault or abnormality is found, repair or replace the parts in time.