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SZS Series Water Tube Gas Fired Steam Boiler China Suppliers Factory

High-efficiency SZS series water tube double drum gas or liquid oil fired steam boiler from leading China suppliers. Our factory ensures 93.2% thermal efficiency and maximum safety.



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The SZS series represents a pinnacle in industrial heating technology, featuring advanced double-drum water-tube gas-fired steam boilers designed for high-efficiency performance. By implementing forced circulation in high-temperature zones, these boilers ensure that all heating surfaces are reliably cooled, effectively preventing gasification and extending the operational lifespan of the equipment.

Engineered for safety and environmental sustainability, the SZS series utilizes a full-membrane water-cooled wall structure within the combustion chamber and operates under micro-positive pressure to ensure a pollution-free environment. With premium aluminum silicate fiber and refractory cement insulation, heat loss is minimized, maintaining an external furnace body temperature below 45°C for optimal energy conservation.

Detailed Parameters

Evaporation Capacity10 - 50 t/h Rated Pressure1.25 (1.6) Mpa
Steam Temperature194 - 204 ℃ Thermal EfficiencyUp to 93.2%
Boiler Weight30.6 - 70 T Gas Consumption790.3 - 3898 Nm³/h
Diesel Consumption679.3 - 3398 Kg/h Main Steam OutletDN 150 - 300
Structure TypeDouble-Drum Water-Tube Insulation MaterialAluminum Silicate Fiber

Key Advantages

Maximum Safety

Equipped with explosion-proof doors and high-precision flame detectors to ensure secure and stable operation.

Forced Circulation

Advanced circulation prevents gasification in high-temp zones, ensuring reliable cooling of heating surfaces.

High Efficiency

Narrow-pitch tube-membrane walls improve airtightness and boost overall boiler thermal efficiency.

Eco-Friendly

Micro-positive pressure combustion creates a pollution-free operating environment for the workplace.

Easy Maintenance

Strategically placed fire viewing holes and rear inspection doors facilitate easy overhaul and cleaning.

Thermal Control

High-quality insulation keeps the furnace body under 45°C, significantly reducing energy waste.

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Management Platforms

Fuel Optimization

Precise control of gas and diesel consumption to minimize operational costs.

Thermal Monitoring

Real-time tracking of furnace temperature and heat loss prevention.

Safety Alerts

Integrated flame detection and pressure sensors for instant hazard warnings.

Combustion Control

Micro-positive pressure management for emission-free industrial operation.

Capacity Scaling

Flexible model selection from 10t/h to 50t/h to match plant demands.

Maintenance Sync

Optimized access points for streamlined cleaning and inspection cycles.

Investment Return Comparison

FeatureStandard BoilerSZS Series Boiler
Thermal Efficiency85% - 88%Up to 93.2%
Fuel ConsumptionModerate-HighOptimized Low
Maintenance CostFrequent CleaningStreamlined/Easy Access
Safety LevelStandard ProtectionExplosion-proof & Flame Detection
Heat LossHigh surface tempControlled below 45°C

Frequently Asked Questions

Q: What are the primary benefits of a water-tube boiler over a fire-tube boiler?

Water-tube boilers, like the SZS series, offer higher pressure capabilities, faster steam generation, and generally higher thermal efficiency, making them ideal for large-scale industrial applications.

Q: How does the SZS series reduce heat loss?

It utilizes high-quality aluminum silicate fiber combined with refractory cement, ensuring the external furnace body temperature remains below 45°C.

Q: Is the SZS series compatible with multiple fuel types?

Yes, the SZS series is designed to operate efficiently using either natural gas or diesel oil, providing flexibility based on local fuel availability.

Q: What safety features are integrated into these gas-fired boilers?

The boilers are equipped with explosion-proof doors, high-sensitivity flame detectors, and a forced circulation system to prevent overheating and gasification.

Q: How does the "micro-positive pressure" combustion benefit the environment?

Micro-positive pressure ensures that combustion gases are controlled and expelled efficiently, preventing leaks into the operating area and reducing pollution.

Q: What is the maximum rated evaporation capacity available?

The SZS series offers a range of models, with the largest capacity reaching 50 t/h to support heavy industrial steam requirements.

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