Boiler Draft Solutions by Yueyu
Why Is the Boiler Centrifugal Fan Crucial for Efficient Operation?
In modern boiler systems, what ensures both stable combustion and safe operation? The answer is the boiler centrifugal fan, a key component of the draft system. This system combines forced draft, delivering oxygen to the furnace for efficient fuel combustion, and induced draft, removing flue gas to maintain negative furnace pressure. Boiler centrifugal fans account for 15%–20% of the total cost of boiler auxiliary equipment, underscoring their critical role in performance, efficiency, and operational safety.
Yueyu Boiler Centrifugal Fans for Diverse Applications
● Industrial Boilers： Provide 15,000–20,000 m³/h airflow for 10 t/h boilers, ensure complete fuel combustion, and maintain –50 to –100 Pa negative pressure.
● Biomass Boilers ：Deliver 20%–30% higher airflow, adjust via dampers, and use wear-resistant impellers for ash-laden flue gas.
● Gas-Fired Boilers ： Precisely control air-fuel ratio (1:10–1:12) with variable frequency, achieving 92%+ combustion efficiency.
Product Core Advantages
✓ Leading Technical Design: Our team of over 30 engineers utilizes advanced design software to optimize the impeller and casing structure, resulting in fan efficiency exceeding 85%, 10%-15% higher than conventional fans.
✓ Advanced Manufacturing and Rigorous Testing: Equipped with CNC lathes, laser cutting, and dynamic balancing machines, our impeller dynamic balancing error is as low as 0.02 g·m. All fans undergo air volume, air pressure, and noise testing.
✓ Superior Performance:
Highly Efficient and Energy-Saving: An 11kW fan saves 1-2 kWh of electricity per hour, saving approximately 6,000 yuan annually.
Low-Noise Design: Soundproofing materials reduce noise to less than 75 dB, meeting national standards.
High-Temperature and Corrosion-Resistant: Our impellers are made of 16Mn steel or stainless steel, and our casing is finished with epoxy zinc-rich paint, resulting in a service life of 5-8 years.
Application Cases 1
Industrial Boiler Retrofit for Chemical Company
Customer Need: Replace low-efficiency (70%) and noisy (85 dB) fan on 10 t/h coal-fired steam boiler with a high-efficiency solution.
✓ Solution: Customized Yueyu YYBF centrifugal fan with 500mm impeller, 18,000 m³/h airflow, 1200 Pa pressure; impeller made of wear-resistant 16Mn steel; soundproof casing.
Results:
✓ Fan efficiency increased to 85%, saving 12,000 kWh/year (~$6000).
✓ Noise reduced to 70 dB, meeting environmental standards.
✓ Boiler combustion efficiency improved by 5% (85% → 90%), saving 100 tons of coal/year (~$50,000).
Application Cases 2
Biomass Boiler Project for Renewable Energy Company
Customer Need: Insufficient airflow (10,000 m³/h) causing incomplete combustion and high carbon content (15%) in ash on 5 t/h straw-fired biomass boiler.
✓ Solution: Customized Yueyu 9-19-4A high-pressure centrifugal fan with 400mm stainless steel impeller (wear and corrosion resistant), delivering 12,000 m³/h airflow at 2500 Pa.
Results:
✓ Airflow increased by 20%, carbon content in ash reduced to 5%.
✓ Boiler evaporation capacity improved by 10% (5 t/h → 5.5 t/h).
✓ Fan operated for 1 year without significant wear (compared to 6 months for ordinary fans).
Contact Us
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