Function of Explosion-Proof Centrifugal Fans Explosion-proof centrifugal fans operate on the principle of converting kinetic energy into potential energy.

Function of Explosion-Proof Centrifugal Fans Explosion-proof centrifugal fans operate on the principle of converting kinetic energy into potential energy. They accelerate gas through high-speed rotating impellers, then decelerate and redirect the flow to transform kinetic energy into potential energy (pressure). In single-stage explosion-proof centrifugal fans, gas enters the impeller axially. As it passes through the impeller, it becomes radial and enters the diffuser. Within the diffuser, the gas flow direction changes, the cross-sectional area of the duct increases, and the gas flow slows down, converting kinetic energy into pressure energy. The primary pressure increase occurs in the impeller, after which the diffusion process continues. For multi-stage explosion-proof centrifugal fans, a counterflow device directs air into the next impeller, enabling the generation of higher pressures. The operating principle of explosion-proof centrifugal fans is fundamentally consistent. Due to low gas flow rates and minimal pressure variations, changes in gas specific volume are generally negligible. The gas is treated as an incompressible fluid. Explosion-proof centrifugal fans can rotate clockwise or counterclockwise. Viewed from the motor side, a fan with blades rotating clockwise is termed a right-hand fan, while one rotating counterclockwise is designated a left-hand fan.