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Multi-stage centrifugal blower

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High-pressure centrifugal blowers

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Product Description

High-pressure centrifugal blowers are generally used for high-pressure forced ventilation in industries such as forging and smelting furnaces, glass, electroplating, ceramics, batteries, and radio electronics. They can also be widely used for material conveyance in food processing, feed processing, mineral powder processing, and other industries, and are suitable for Supporting facilities use with equipment such as cardboard machinery and tempered glass machinery. The conveyed medium includes air and other non-flammable gases that are harmless and non-corrosive to the human body, and should not contain sticky substances. For general ventilation and air exchange, the temperature of A-type fans should not exceed 80°C, and the dust and hard particles contained should not exceed 150 mg/m³.

For conveying corrosive gases at certain concentrations, fiberglass materials or stainless steel materials can be used to make corrosion-resistant fans. For conveying flammable and explosive gases, cast aluminum impellers and explosion-proof motors can be used to make explosion-proof fans. For conveying gases between 80°C and 250°C, water-cooled bearing seats made of ordinary steel plates can be used, while for gases above 250°C, it is recommended to use stainless steel materials.

As the temperature of the conveyed gas increases, the pressure of the centrifugal fan will change accordingly, and the power of the motor may also need adjustment. For detailed information, please consult the manufacturer.

High-pressure centrifugal blower types

1. The fan is made in a single suction form. Sizes No. 4 to 24.

2. Each type of fan can also be made in either left rotation or right rotation forms. From the viewpoint of the motor side, if the impeller rotates clockwise, it is called a right-hand fan, denoted by 'right'; if counterclockwise, it is called a left-hand fan, denoted by 'left'.

3. The outlet position of the fan is indicated by the angle of the casing's exit. For the 9-19 high-pressure centrifugal fan, the outlet is rectangular but can be customized into a circular shape according to customer needs.

4. The fan drive methods are: Type A: Direct connection to the motor; Type C: Belt drive; Type D: Coupling drive.

High-pressure centrifugal ventilation fan structure and features

Type A fans consist of the casing, inlet, impeller, frame, adjustable door (according to customer needs), and motor. Types B, C, and D include additional drive units. Before leaving the factory, the fans undergo rigorous testing, with amplitude meeting national standards. For sizes 18 and above, the entire frame is purchased based on customer requirements (usually using concrete foundations).

The casing is made of steel, sturdy and reliable, available in integral and semi-open types, with the latter being more convenient for maintenance. Sizes below 14 are mostly integral, while sizes 14 and above are generally semi-open.

The impeller consists of 12 arc-shaped blades, a curved front disk, and a flat rear disk welded together. It should undergo static and dynamic balancing to ensure smooth operation and good performance.

The drive section includes the main shaft, bearing housing, rolling bearings, and pulley (or coupling). The drive is equipped with a water cooling device to cool the bearings and extend their lifespan.

The inlet is welded from steel plates into a conical shape, forming a streamlined convergent structure located on the side of the fan, with a curved cross-section intersecting the axial direction, allowing gas to enter the impeller smoothly with minimal loss.

The regulating door is installed at the front of the inlet, used to adjust the airflow volume when the fan speed (pressure) remains unchanged.

The entire frame is made of channel steel and steel plates welded together, providing robust, stable, and durable construction.

The motor uses motors from reputable manufacturers, typically copper-core motors with a default efficiency level of Grade 3. Customization options include frequency conversion motors, explosion-proof motors, and motors with an efficiency level of Grade 2 or higher.

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Products

Products

Which wind turbine manufacturer leads in innovation?

How are Chinese wind turbine manufacturers innovating?

How does a titanium fan benefit sustainability?

How do power plant fans drive sustainability?

How do centrifugal steel mill fans boost efficiency?

How is a fan drive shaft crucial for sustainability?

High-pressure centrifugal blowers

Description

marker

Product Description

High-pressure centrifugal blower types

High-pressure centrifugal ventilation fan structure and features

contact us

Related popular products

Smoke exhaust fans

HTF type fire smoke exhaust axial fan

Boiler centrifugal induced draft fans

Anti-corrosion centrifugal fans

Roof axial fans

Dust removal centrifugal fans

FBD series (dⅠ) explosion-proof pressure-injection counter-rotating axial flow local ventilation fan

Multi-stage centrifugal blower

High-temperature draft fans

SDF tunnel construction axial flow fan

Mixed-flow fans

JK series of mine local exhaust fans

Roots blower

Kiln exhaust fan

Jet fans

Coal gas booster fan

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