• 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

GDG Series Centrifugal Fans are specifically designed to support circulating fluidized bed boilers, boiling boilers, and high-performance boiler systems. They also serve as reliable ventilation solutions for industries such as chemical processing, petroleum refining, and metallurgy. Main advantages include:

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2. 1. Enhanced Efficiency and Reduced Noise: Developed through rigorous testing based on gas dynamics, the GDG series improves total pressure by 500-1000Pa, reduces noise by up to 3dB(A) in efficient zones, and expands the efficiency range by 2-3%. Its performance curve is broad and consistent, ensuring stable operation across diverse flow rates.
3. 2. Flexible Design for Comprehensive Performance: Each model in the GDG series offers multiple impeller configurations within one fan size, allowing a continuous performance spectrum across the entire series. This unique design reduces gaps in ventilation and boiler fan selection, ensuring optimized airflow at various speeds and pressures. With over 75% efficiency across the operating range, GDG fans support sustained energy savings.

Form

1. 1. Rotational Configuration: Available in left-hand and right-hand rotations: clockwise impeller rotation is designated as "right," while counterclockwise is marked as "left."
2. 2.Model Availability: Spanning 13 models, from No.4 to No.16, GDG fans can accommodate boiler capacities from 4t/h to 220t/h. Each model is configured with a single-suction design, optimizing airflow.
3. 3.Outlet Positions: Both left-hand and right-hand models are available with 6 different outlet angles: 0°, 45°, 90°, 135°, 180°, and 225°.
4. 4.Transmission Modes: Models from No.4 to No.6.3 use Type A transmission, while Type D is used for No.7.1 through No.16.

Structural Characteristics

1. 1. Impeller: The impeller uses forward-curved, alternating long and short blades, with a total of 24 blades. Balanced both dynamically and statically, the impeller supports smooth and reliable operation.
2. 2. Casing: Constructed from high-grade welded steel, the volute design is engineered to maximize pressure while minimizing noise for optimal airflow.
3. 3. Air Inlet: The air inlet features a convergent, streamlined structure, bolted securely to enhance airflow with minimal resistance.
4. 4. Transmission System: This assembly includes a robust main shaft, quality rolling bearings, and an integrated bearing box lubricated with grease, supporting long-term performance.

Performance and Selection

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2. 1. Model Selection: Users can match their performance needs by referencing the performance curves to identify suitable fan sizes and speeds. In overlapping ranges, users can choose between a larger, slower model or a smaller, faster model based on specific requirements.
3. 2. Motor Power Requirements: Each curve includes recommended motor power and model options based on operating speeds. For operating points between motor power levels, the higher-power motor should be selected.
4. 3. Efficiency and Power Usage: Internal efficiency and actual power usage are displayed along the curve, including a 1.15 power reserve factor and mechanical transmission loss, providing users with reliable performance data.