Directly Fired Steam Boilers

Directly fired steam boilers are high-efficiency industrial steam production equipment. Their core design feature is that fuel burns directly within the boiler combustion chamber, with direct heat exchange between the flame and water/steam, eliminating the need for additional heat exchangers or intermediate media. This technology significantly shortens the heat transfer path, improves energy efficiency, and is suitable for medium- to high-load steam demand scenarios. This product strictly adheres to the ISO 9001 quality management system, meets GB/T 16507 "Boiler Safety Technical Supervision Regulations," and complies with EU CE certification standards, ensuring safe and reliable operation.

• Combustion Process: Fuel (natural gas, diesel, biomass pellets, or pulverized coal) is injected into the combustion chamber through a high-efficiency burner, achieving complete combustion. The flame directly radiates heat to the boiler furnace or water pipes.
• Heat Exchange Mechanism: Heat is rapidly transferred to the water through radiation and convection. Once the water temperature reaches its boiling point, it vaporizes into saturated/superheated steam. The steam pressure is automatically regulated by an intelligent control system.
• Steam Output: After moisture is separated by a steam collector, the steam is transported to the steam-using equipment through pipelines. The system response time is only 5-8 minutes, enabling immediate use.
• Key Advantages: Direct heat transfer avoids heat loss associated with indirect heat exchange, significantly improving overall energy efficiency.

1. Ultra-High Thermal Efficiency: Thermal efficiency reaches 85%-90%, high fuel utilization, and unit steam energy consumption reduced by more than 20%.
2. Multi-Fuel Adaptability: Supports five types of fuels including natural gas, light diesel oil, biomass pellets, and pulverized coal. Rapid switching is achieved through a modular burner, adapting to global energy supply differences.
3. Compact Structural Design: 30% smaller in volume than traditional boilers, requiring less floor space and reducing plant construction costs.
4. Intelligent Safety System: Integrated triple protection: Automatic shutdown at low water level, overpressure safety valve, and flame monitoring probe.
5. Low Maintenance Costs: The combustion chamber uses a high-temperature resistant alloy lining, and the flue requires no cleaning, necessitating only 1-2 maintenance visits per year.

• Economy: 25% reduction in overall operating costs (fuel + maintenance + energy consumption), investment payback period < 2 years.
• Environmental Protection: Low-NOx combustion technology, compliant with national "dual-carbon" policy requirements.
• Reliability: Failure rate < 0.5 times/year, 24-hour remote monitoring support.
• Scalability: Supports multiple units operating in parallel, dynamic adjustment of steam demand, adapting to factory capacity growth.

Installation Requirements: A 3m x 2m foundation space is required, along with a fuel supply system and flue.

Maintenance Schedule:

• Monthly: Inspect burner nozzles and water level sensor;
• Quarterly: Clean ash buildup in the flue;
• Annual: Conduct a comprehensive inspection of the pressure vessel and safety valves.

Note: Free technical training is provided to ensure operators are proficient in the intelligent control system.

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