• 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.

Application

 

The GG0.5-15 to GG20-15 and GY0.5-15 to GY20-15 Centrifugal Fans and Induced Draft Fans are purpose-built for 0.5 to 20t/h industrial boilers. These fans are well known for their high efficiency, stable performance, and wide operating range, making them suitable for managing air volume and pressure requirements in industrial environments. Their optimized design ensures effective ventilation and dust control, enhancing both operational efficiency and environmental compliance.

 

Form

These single-suction centrifugal and induced draft fans can be manufactured in right-hand or left-hand configurations. The rotational direction of the impeller determines the orientation: clockwise rotation indicates a right-handed fan, while counterclockwise rotation indicates a left-handed fan. The outlet direction can be customized at angles such as 0°, 45°, 90°, 135°, 180°, and 225°, with other angles available upon request.

Drive Modes:

• GG0.5-15, GG1-15, GG2-15, and GG4-15 fans use Type A drive mode.
• GY0.5-15 and GY1-15 fans use Type C drive mode.
• All other models use Type D drive mode.

Structural Characteristics

 

The fans consist of several key components including an impeller, casing, air inlet, frame, transmission system, and adjustable air door:

1. 1. Impeller: Built with an arc-conical wheel cover, blades, and a flat wheel disc, the impeller is welded from high-strength steel plates and secured to the shaft. After static and dynamic balancing and an overspeed test, it ensures smooth and stable operation.
2. 2. Casing: The casing is a durable volute-shaped structure made from high-quality welded steel plates.
3. 3. Air Inlet: The streamlined air inlet design enhances airflow efficiency and is securely attached to the casing using bolts.
4. 4. Adjustment Door: The adjustment door controls airflow, featuring petal-shaped blades and an external transmission mechanism. It allows flexible adjustment between 90° (fully closed) and 0° (fully open). The handle’s position and operation depend on whether the fan is right- or left-handed.
5. 5. Frame: The frame is fabricated from sturdy steel sections to provide support and durability.
6. 6. Transmission Part: Except for Type A models, the transmission system consists of a high-quality steel main shaft, coupling, and bearing box. The bearing box includes a thermometer and oil level indicator and uses L-AN46 oil for lubrication.

 

Performance and Selection

Performance metrics such as air volume, total pressure, shaft speed, power, and efficiency are key indicators of these fans. The performance for centrifugal fans is calculated under standard conditions: air temperature of 20°C, atmospheric pressure of 101325 Pa, and gas density of 1.2 kg/m³. For induced draft fans, the performance is based on flue gas at 200°C and gas density of 0.745 kg/m³. Refer to the performance table for guidance during selection, and adjust performance as needed for non-standard operational conditions.

Model	Rotating Speed /(r/min)	Full Pressure /Pa	Air  Flow /(m³/h)	Motor
				No.	Power/kW
GG0.5-15	2900	1758 1774 △1906 1989 2048 2136 2156	1495 1400 1321 1205 1015 830 688	Y90S-2	1.5
GG1-15	1450	1834 1805 △1765 1726 1667 1579	2400 2600 2800 3000 3200 3500	Y112M-4 B35	4
GG2-15	2900	3138 3060 △2942 2844 2726 2550	2600 3000 3300 3500 3800 4200	132S-2B35	5.5
GG4-15	2900	3314 3285 △3236 3128 2951	7200 8000 8500 9000 9700	Y160M-2B35	11
		2844	12000	Y160M2-2B35	15
GG6-15	1450	3099 3030 △2942 2824	7000 8000 9000 10000	Y160M-4B3	11
		2745 2647	11000 12000	Y160L-4B3	15
GG10-15	1450	2999 2969 △2891 2871 2793 2734	14645 16090 17362 18563 19656 20795	Y180L-4B3	22
GG20-15	1450	3138 2991 △2844 2647 2451 2304	35000 40000 45000 50000 58000 62000	Y250M-4B3	55

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