1. Why are fans critical for an industrial boiler system?

Boiler fans are the system’s “breathing system.” They are essential for[citation:2]:

• Providing Combustion Air: Supplying oxygen for efficient fuel burning.
• Maintaining Furnace Pressure: FD and ID fans work together to keep a safe, slight negative pressure, preventing dangerous gas leaks or inefficient operation.
• Extracting Flue Gas: Removing hot combustion gases for treatment and release.
• Ensuring Safety & Efficiency: Proper fan operation prevents issues like coking, improves heat transfer, and can boost thermal efficiency by 5-10%[citation:2].

2. What is the difference between an FD Fan and an ID Fan?

Both are essential but serve opposite functions in a boiler’s air system[citation:2]:

Forced Draft (FD) Fan:
• Location: At the boiler’s air inlet.
• Function: Pushes fresh air into the furnace.
• Purpose: Provides positive pressure, supplying oxygen for combustion.

Induced Draft (ID) Fan:
• Location: At the boiler’s flue gas outlet (before the chimney).
• Function: Pulls or extracts flue gases out of the furnace.
• Purpose: Creates a slight negative pressure for safety and removes exhaust gases.

3. What capacity range do your industrial fans cover?

Thermokrupp manufactures one of the widest ranges in the industry, from small 2 KW units to massive heavy-duty fans up to 12,000 KW[citation:1]. This allows us to provide the perfect fan for virtually any application, whether it’s a small process heater or a large power plant boiler. Our expertise lies in customizing the design within this broad spectrum to meet your exact airflow, pressure, and environmental conditions.

4. Can you design fans for harsh or high-temperature environments?

Absolutely. A core strength of Thermokrupp is designing fans that perform reliably in dusty, high-heat, and demanding industrial environments[citation:1]. For instance, Induced Draft (ID) fans are specifically engineered to handle high-temperature flue gases[citation:2]. We select appropriate materials (like high-grade steels), incorporate wear-resistant designs for dusty conditions, and use advanced engineering to ensure structural integrity and longevity under thermal and mechanical stress.

5. What is your design and manufacturing process for custom fans?

Our process is tailored and thorough[citation:1]:

1. Requirement Analysis: We deeply understand your application, airflow, pressure, and environmental needs.
2. Custom Design: Engineers create a design (blade type: radial, airfoil, etc.) optimized for your required efficiency[citation:1].
3. Quality Manufacturing: Using selected materials, we build the fan with precision machining and robust assembly.
4. Rigorous Testing: Every fan is tested to ensure performance meets design specifications before dispatch.
5. Support: We provide complete support from installation guidance to after-sales service.

Mon-Sat, 9:00 AM – 6:00 PM IST

Decades of Experience

Proven solutions across industries[citation:1]

Fully Customized

Designed for your exact needs[citation:1]

Robust Performance

Built for harsh environments[citation:1]