Industrial Coal Fired Hot Water Boiler Factory Suppliers in China

Leading China factory and suppliers of high-efficiency coal fired hot water boilers. Rated thermal power 0.7-140 MW with working pressure 0.7-2.5 MPa. Compatible with lignite, bituminous coal, and anthracite to provide sustainable industrial heating solutions.

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Details

Detailed Parameters

Thermal Power Range	0.7 MW to 63 MW	Working Pressure	0.7 MPa to 1.25 MPa
Output Water Temp	95°C to 130°C	Feeding Water Temp	70°C (Standard)
Max Thermal Efficiency	Up to 88.9%	Exhaust Gas Temp	134.1°C to 168.6°C
Tube Structure	Three-way water-fired tube	Wall Design	Water-cooled light tube walls
Configuration	Horizontal single boiler	Fuel Type	Coal-fired

Key Advantages

Robust Structure

Utilizes a three-way water-fired tube structure for enhanced durability and structural integrity under high pressure.

High Efficiency

Optimized heating areas and long flue gas paths achieve thermal efficiency levels up to 88.9%.

Cost Effective

Reduced exhaust temperatures lead to lower fuel consumption and minimized long-term operation costs.

Compact Design

A reasonable and compact longitudinal arrangement allows for easier installation in limited industrial spaces.

Optimal Heat Transfer

Dense water-cooled wall tubes ensure maximum heat exchange between the furnace and the water medium.

Versatile Scaling

Available in a wide range of capacities from 0.7MW to 63MW to match any industrial demand.

Product Gallery

Management Platforms

Capacity Planning

Precisely match thermal power (MW) to your facility's peak load requirements.

Pressure Control

Adjustable working pressure ranges from 0.7 to 1.25 MPa for diverse piping systems.

Efficiency Monitoring

Track thermal efficiency and exhaust temperatures to ensure peak performance.

Temperature Regulation

Manage output water temperatures from 95°C up to 130°C with precision.

Feedwater Management

Standardized feeding water temperature at 70°C for stable thermal cycles.

Maintenance Scheduling

Structured service intervals for water-cooled tubes to prevent scaling and corrosion.

Investment Return Comparison

Performance Metric	Standard Boiler	Our High-Efficiency Boiler
Thermal Efficiency	75% - 82%	85.8% - 88.9%
Fuel Consumption	Baseline	Reduced by 5% - 12%
Exhaust Heat Loss	High	Low (Optimized Flow)
Operating Cost	Moderate	Low (Energy Saving)
ROI Period	Standard	Accelerated via Efficiency

Frequently Asked Questions

Q: What are the primary benefits of a three-way water-fired tube structure?

This structure increases the heating surface area and improves the heat transfer coefficient, leading to higher thermal efficiency and better pressure resistance compared to traditional designs.

Q: How does the coal-fired hot water boiler reduce operational costs?

By optimizing the flue gas flow and utilizing water-cooled wall tubes, the boiler lowers the exhaust gas temperature, ensuring more heat is captured and less fuel is wasted.

Q: Can this boiler be used for varying industrial temperature requirements?

Yes, our models support a wide range of rated output water temperatures, from 95°C to 130°C, making them suitable for various heating and industrial processes.

Q: What is the maximum thermal power available for these boilers?

The series scales up to a rated thermal power of 63 MW, allowing it to serve everything from medium-sized facilities to large industrial plants.

Q: How does the water-cooled wall tube design prevent overheating?

The dense coverage of light tubes on both sides of the furnace chamber ensures constant water circulation, which absorbs heat rapidly and prevents the furnace walls from reaching critical temperatures.

Q: What is the typical thermal efficiency range for the DZL series?

Depending on the model, the thermal efficiency ranges from 85.8% for the 0.7MW unit up to 88.9% for the larger 56MW and 63MW units.