Differences Between Explosion-Proof High-Temperature Fans and Non-Explosion-Proof High-Temperature Fans

Differences Between Explosion-Proof High-Temperature Fans and Non-Explosion-Proof High-Temperature Fans

Differences Between Explosion-Proof High-Temperature Fans and Non-Explosion-Proof High-Temperature Fans: 1. They use different motors. 2. Requirements regarding the material of the impeller and the position of the corresponding inner wall of the housing. Explosion-proof high-temperature fans use iron inner walls, etc., to ensure that no sparks are generated in the event of a collision. The fan blades and aluminum rings have iron inner walls. 3. Explosion-proof high-temperature fans have minimum clearance requirements between the impeller and the housing. To maximize efficiency, explosion-proof high-temperature fans often set an upper limit on this clearance, which creates a conflict. 4. Safety protection requirements for the inlet and outlet of explosion-proof high-temperature fans are very strict. Explosion-proof ratings can be classified into the following types. Category 1: Electrical equipment for coal mining; Category 2: Electrical equipment for explosive gas atmospheres outside of coal mines and underground mines. Category 3 can be further classified into A, B, and C. Machines marked with B are suitable for the operating conditions of Category 2. Category C is suitable for the operating conditions of both A and B. Category 4: Electrical equipment for use in explosive dust atmospheres outside of coal mines. Class 5: Combustible dust; Class B: Non-conductive dust; Class C: Conductive dust.