Corrosion-resistant fans are special fans that have undergone anti-corrosion treatment or are manufactured using corrosion-resistant materials. They are mainly used for ventilation, dust removal, and gas extraction in corrosive environments such as factories, mines, electroplating plants, and chemical plants. Their core characteristics are acid and alkali resistance and high temperature resistance. They are made of materials such as fiberglass, polypropylene (PP), and aluminum alloy, combined with spraying or coating processes to enhance corrosion resistance. Some models also have explosion-proof capabilities to cope with flammable and explosive environments.
According to airflow direction, they can be divided into centrifugal and axial flow fans: Centrifugal fans drive gas through the centrifugal force of an impeller and are divided into single-suction and double-suction types; axial flow fans transport gas axially and include vertical and horizontal layouts. Pressure ratings are divided into three categories: low pressure (≤1kPa), medium pressure (1-3kPa), and high pressure (≥3kPa). Installation must follow specifications such as foundation fixing and impeller calibration. Reverse rotation or overloading is prohibited during operation.
Development trends focus on energy efficiency improvement, noise control, and automated adjustment, gradually replacing traditional large centrifugal fans with adjustable-blade axial flow fans.
