Overview of Fan Filters

Fan filter is a tool that actively guides gas flow. In existing technology, fan filters often adopt a pull-out structure. This type of fan filter replaces the filter screen, opens the lock, and then extracts the fan filter screen. The filter screen and the plastic frame around the filter screen are disassembled in an integrated manner. Mainly used in wind power pitch control systems, photovoltaic inverter systems, energy storage systems, distributed charging stations, electrical control cabinets, substations and other equipment, playing a role in ventilation, heat dissipation, and protecting the clean environment inside the cabinets. It has the effect of cleaning the components inside the cabinet, thereby extending the service life of the components.

The application of fan filters

1. The electrical and power industry mainly includes fan filters for electrical control cabinets and high and low voltage switchgear.
2. The power quality industry mainly includes power quality inlet fan filters, power quality outlet fan filters, etc.
3. The wind and photovoltaic industry mainly includes fan filters for pitch control systems and photovoltaic inverter systems.
4. The energy storage industry mainly includes bidirectional inverter equipment fan filters and containerized energy storage cabinet fan filters.
5.  The distributed charging station and charging pile industry mainly includes high protection level fan filters for air inlet, high protection level fan filters for air outlet, and high-temperature resistant fan filters.

Protection level of fan filter

The main protection levels of fan filters are as follows:
1. IP44 protection level.
2. IP55 protection level.

Selection and Design of Fan Filters

1. Firstly, the overall heat generation of the equipment used needs to be considered, and the selection should be comprehensively considered based on factors such as component heat generation, cabinet size, and environmental temperature rise.
2.  Match the airflow of the fan filter (fan and filter) based on the heat generated by the components. As the fan filter has a weakening effect on the airflow of the fan, it is necessary to consider the overall selection process. The magnitude of the reduced air volume is approximately 35-40% of the total fan air volume.
3. When selecting a fan filter, it is necessary to consider installation and sheet metal openings, so it is necessary to reserve installation openings for the fan filter during the selection process. As each filter has a corresponding opening size, users can open holes on the sheet metal parts according to the opening size.