When it comes to exhaust fans, we all have a certain degree of certainty. Ventilation to ensure air quality, thereby ensuring life and production, is the main function of the exhaust fan. Due to its good natural ventilation effect, centrifugal fans are widely used in many enterprises at this stage, so centrifugal fans are excellent products in exhaust fans. However, what types of centrifugal fans are there? What are their characteristics? The following author will introduce you in further detail.
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Centrifugal fans can be divided into ordinary centrifugal fans, dust removal fans, corrosion-resistant centrifugal fans, and explosion-proof axial fans.
Generally, the centrifugal fan is relatively clean for transportation, the ambient temperature shall not exceed 80°C, the smoke concentration shall not exceed 150mg per cubic meter, and the transported gas will not corrode the machinery and equipment.
The dust exhaust fan is used to transport the gas whose dust concentration exceeds 150mg per cubic meter, and the dust exhaust fan can also be used as a mechanical device for the pneumatic conveying system. The dust exhaust fan is uniquely solved, it is not easy to be blocked by smoke and dust, and the shell is relatively wear-resistant.
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Corrosion-resistant centrifugal fans are used to transport vapors that irritate metallic materials. Corrosion-resistant centrifugal fans are generally made of corrosion-resistant materials such as stainless steel plates, plastics or porcelain, or coated with corrosion-resistant architectural coatings on metal materials.
Explosion-proof axial flow fans are used to transport gases that are prone to deflagration and ignition, or gases with certain types of industrial dust that are likely to cause deflagration, or for flammable, flammable Explosive natural environment. Its shell and centrifugal impeller are made of soft metal, and the power device of the explosion-proof axial flow fan is suitable for explosion-proof fans.
Since the fresh air system is generally used in an environment where the natural environment is not harsh, the centrifugal fan used in the fresh air system is generally a general centrifugal fan.
1. The ventilation effect is very good. The exhaust effect of 4-72 centrifugal fan is very good, especially suitable for pipeline exhaust or exhaust;
2. Strong scope of application. The 4-72 centrifugal fan is a centrifugal fan commonly used in pipeline transportation of gas, and it can be used in corrosion-resistant, flammable and explosive mixed gas venues.
3. Low noise. The 4-72 centrifugal fan adopts the effective centrifugal impeller angle design scheme according to the air structure mechanics. During operation, there is no mechanical friction, and the effective leaf shape minimizes the noise; the noise caused by the 4-72 centrifugal fan is high-frequency noise, only As long as there are obstacles, it can be soundproof and noise reduction.
4. Stable operation. The centrifugal impeller with reliable design reduces the axial force to the minimum level, and the centrifugal impeller with high efficiency is calibrated by the dynamic balance of the static rotor to make the bare machine run stably. Without adding any shock absorbing equipment, the vibration amplitude of the rolling bearing very small.
5. Easy maintenance and durable. Some models can be equipped with a removal door, which does not need to be disassembled for maintenance and cleaning, saving costs. In addition, the shell and the centrifugal impeller are made of high-quality thick steel plates to make the centrifugal fan stronger. The surface of the bare metal is sprayed with paint, which has strong oxidation resistance and is not easy to be damaged.rust.
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