Main Components of Explosion-proof Axial Flow Fans

Explosion-proof axial flow fans mainly consist of the following components:

Impeller

Volute casing

Inlet duct

Outlet duct

Bearing housing

Main shaft

Bearing housing support

Material Selection for Explosion-proof Axial Flow Fans

1. Impeller

The impeller of an explosion-proof axial flow fan directly contacts air and potentially toxic or hazardous gases. Therefore, it is typically made of high-quality carbon steel alloy and must undergo anti-corrosion treatment before normal use.

2. Fan Casing

The fan casing serves to protect the motor by isolating it from external air and dust. It should have corrosion resistance and be made of structural steel or alloy materials with specified hardness requirements.

3. Supports

Supports for explosion-proof axial flow fans require load-bearing capacity and resistance to deformation. They are commonly made of cast iron, which undergoes thermal processing to ensure hardness and surface plating to prevent oxidation and rusting.

4. Bearings

Bearings in explosion-proof axial flow fans are made of alloy materials or Q235 steel, depending on the operating temperature. They must ensure smooth operation and minimize friction between components.

5. Bearing Housing

Bearing housings are available in various materials, including copper, stainless steel, and plain iron. They must exhibit stable metal physical properties and resistance to deformation.

This translation maintains technical accuracy while adapting terminology for international standards (e.g., "Q235" as a common Chinese steel grade). Material specifications align with industry norms for explosion-proof equipment.