• Durability: Vinylester resin, UV protection, extended service life.
• Customizable: Computer strain analysis, G2.5 balance, low vibration risk.
• Easy Maintenance: Oil bath bearings, heat/corrosion resistant, cost-effective.
• Professional Team: Expert wind turbine guidance.
• High aerodynamic efficiency, low noise, corrosion resistance.
• Medium temp range: -20℃ to 80℃, ≤ humidity, ≤ 100mg/m3 dust content.
• Durable Fiberglass Build: Ensures long-lasting performance.
• Ethylene-based fiberglass blades optimize airflow.

Overview

This centrifugal blower and induced draft fan system is designed to meet the demanding needs of circulating fluidized bed boilers. Its high-efficiency design, flat performance curve, low noise output, and enhanced wear resistance make it ideal for industrial applications. The blower supports air temperatures up to 80°C, while the induced draft fan can handle flue gas temperatures reaching 250°C, enabling efficient and reliable performance in diverse operating conditions.

Structure and Design

1. 1. Drive Mode: Available in D-type and F-type, both utilizing an elastic coupling for a steady, low-vibration drive.
2. 2. Inlet and Outlet Configuration: The fan outlet is specified by the casing angle, and the inlet angle is expressed by the direction of the inlet relative to the horizontal line. For F-type models with an inlet box, both angles are listed (e.g., 45°/135°), while D-type models use only the outlet angle.
3. 3. Rotation Direction: When viewed from the motor end, clockwise impeller rotation denotes a right-hand model, while counterclockwise rotation indicates a left-hand model.

Structural Features

Each fan comprises an impeller, casing, air inlet, regulation door, and transmission section, with F-type models featuring an inlet box for optimal air collection.
 

1. 1. Impeller: The backward-curved, single-plate blade impeller is welded securely between a three-arc front cover and a flat rear disc. Balanced for both static and dynamic stability, the impeller incorporates advanced “gas-solid two-phase flow” technology, doubling the service life compared to standard fan impellers.
2. 2. Casing: Fabricated from high-grade steel, the spiral-shaped casing is either two or three-piece, enabling easy access for maintenance. Induced draft models have reinforced casings to resist wear from high-temperature environments.
3. 3. Air Inlet: The air inlet has a streamlined, convergent design, attached with bolts to the casing, which facilitates efficient airflow with minimal loss.
4. 4. Air Inlet Box (F-Type): The F-type model’s air inlet box is designed to capture gas with minimal flow loss, optimizing the intake process.
5. 5. Regulation Door: Placed at the air inlet, this adjustable door enables precise airflow control from 0° to 90°.
6. 6. Transmission System: Comprising a high-quality main shaft and rolling bearings, the transmission is equipped with a thermometer for monitoring and uses L-AN46 thin-oil lubrication. The F-type model employs an oil-cooling system, while the D-type relies on water cooling for effective temperature regulation.