Axial fans: Suitable for large air volume and low pressure scenarios, such as general ventilation in electrical cabinets.

Centrifugal fans: Suitable for high pressure environments, such as air delivery in ducts or cooling in enclosed equipment.

Fans with filters: Used in environments with dust or particles, such as factory workshops or outdoor applications. When selecting a fan, you need to consider the equipment's heat dissipation requirements, space size, dust concentration, and budget.

Use the formula , where P is the total power, C is the specific heat of air, and ΔT is the allowable temperature rise. Influencing factors include equipment heat generation, air duct resistance, filter permeability and installation location.

1. Noise level test: Test the sound pressure level according to ISO 3744 standard.
2. Installation optimization: Install the fan on the side of the equipment away from the operator, and add sound insulation to reduce transmission.

Make sure the fan meets the IEC 61000-6-2 standard. When selecting, check whether the fan has a built-in filter or shielding structure. It is recommended to choose a higher level of anti-interference design for industrial environments.

Filtration efficiency: The efficiency of ordinary filters is 80%-90%, and the efficiency of high-efficiency filters can reach 99%.

Replacement cycle: It is determined by the ambient particle concentration. It is recommended to check monthly and replace the filter in time when it is blocked.

Use PWM speed control module or integrated thermostat to achieve automatic synchronous control, ensure consistent air volume and speed, and avoid airflow conflicts.

Indoor equipment: IP34 and above;

Outdoor equipment: IP55 and above, to ensure dust and water resistance. Check the test report when purchasing to ensure that the certification is authentic and valid.

The service life of the fan is generally 3-5 years, and key components such as bearings need to be lubricated regularly; check the dust accumulation on the blades and the noise of the bearings to ensure normal operation.

The fan can be equipped with a variable frequency module to adjust the speed through temperature or humidity signals to achieve more accurate energy saving effects.

According to the cabinet heat dissipation requirements, the formula is: Q=K×A×(ΔTio)
K: thermal conductivity; A: surface area; ΔTio: temperature difference between the inside and outside of the cabinet.

UV protection treatment, and IP55 and above protection level are required. It is recommended to install low-temperature start protection in cold areas.

Check the cleanliness of the condenser and the refrigerant pressure every quarter to ensure good ventilation; conduct a comprehensive inspection every six months.

The distance between the radiator outlet and the obstacle must be greater than 30cm, and maintenance space must be reserved in the cabinet.

Use a unified PLC or intelligent control system to achieve load balancing and standby machine switching.