The technical principle and core structure of explosion-proof fans

Explosion-proof fans are power equipment specially designed for flammable and explosive environments, and their core lies in eliminating the risk of sparks. In terms of technical principles, the explosion-proof fan avoids friction sparks through the combination of soft and hard materials (such as using hard aluminum for the impeller and galvanized sheet for the volute), and is equipped with an explosion-proof motor (conforming to the Exd IIB T4 standard) to ensure that no arc is generated in the electrical system. Structurally, centrifugal explosion-proof fans generate centrifugal force through the high-speed rotation of the impeller, while axial flow fans utilize the axial flow of air. They are suitable for scenarios with different wind pressure requirements. When installing it, attention should be paid to the symmetry of the gap between the impeller and the casing to avoid vibration displacement.