Steam capacity: 0.5-20 ton/h
Pressure: 0.7-2.5Mpa
Available fuel: Natural Gas, LPG, Diesel, Heavy oil, Bunker Oil, Furnace Oil, etc
Rated thermal efficiency: 96%
Available industries: Food, beverage, feed mill, textile, paper, mill, refinery, chemical, pharmaceutical, laundry, etc
WNS series steam boilers are fully automatic horizontal internal combustion three-pass oil/gas-fired packaged fire tube boiler. It adopts a wet-back design, where the corrugated furnace tube serves as the first pass, followed by threaded smoke tubes forming the second pass, and smooth smoke tubes as the third pass. The boiler is equipped with a comprehensive fully automated control system and safety protection devices, enabling: automatic water level control with low-water alarm and shutdown, steam pressure regulation with overpressure alarm and automatic ignition, burner modulation, and flame failure protection to ensure safe operation.
The boiler operates on oil or gas. Fuel is injected through the burner and ignited by an electronic igniter, combusting under slight positive pressure within the furnace tube. High-temperature flue gas flows into the post-combustion chamber, reverses 180° to enter the second pass (threaded tubes), then turns 180° again at the front smoke box to pass through the third pass (smooth tubes). Finally, the exhaust gas exits through the rear smoke box and is discharged into the atmosphere via the chimney.
1.Optimized Three-Pass Design: Incorporates an internationally recognized three-pass structure with a large-volume combustion chamber to ensure thorough fuel combustion.
2.Corrugated Furnace Tube: Advanced corrugated furnace tube design expands the heating surface while allowing free thermal expansion of the tube during operation.
3.High-Efficiency Heat Transfer: Threaded smoke tubes enhance heat exchange efficiency through turbulent flue gas flow.
4.Durable Wet-Back Construction: Features a wet-back design with fully flanged butt-welded seams for exceptional durability and low maintenance costs.
5.Combustion Monitoring: Equipped with a rear-view observation port for real-time monitoring of combustion conditions.
6.Comprehensive Safety Protections: Integrated safeguards against over-temperature, over-pressure, low water, leaks, and flame failure, ensuring safe and reliable operation.
7.Aesthetic Customization: Available with exterior cladding in color-coated steel panels, mirror-finished stainless steel, or brushed stainless steel for a sleek and professional appearance.
8.Advanced Automation: Utilizes imported burners with precise control systems for fully automated operation, including ignition, modulation, and shutdown.
9.Superior Performance: Delivers high thermal efficiency, stable steam output, and excellent load adaptability across varying operating conditions.
| Model | WNS1-1-Y(Q) | WNS2-1.25-Y(Q) | WNS3-1.25-Y(Q) | WNS4-1.25-Y(Q) | WNS6-1.25-Y(Q) | WNS8-1.25-Y(Q) | WNS10-1.25-Y(Q) | WNS15-1.25-Y(Q) | WNS20-1.25-Y(Q) |
|---|---|---|---|---|---|---|---|---|---|
| Rated evaporation capacity (T / h) | 1 | 2 | 3 | 4 | 6 | 8 | 10 | 15 | 20 |
| Rated working pressure (MPA) | 1 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25 | 1.25/1.6 | 1.25/1.6 | 1.25/1.6 |
| Rated steam temperature (℃) | 184 | 193 | 193 | 193 | 193 | 193 | 193/204 | 193/204 | 193/204 |
| Boiler efficiency (oil / gas) (%) | 97-100 | 97-100 | 97-100 | 97-100 | 97-100 | 97-100 | 97-100 | 97-100 | 97-100 |
| Rated feed water temperature (℃) | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 |
| Power requirements (V / Hz) | 380/50 | 380/50 | 380/50 | 380/50 | 380/50 | 380/50 | 380/50 | 380/50 | 380/50 |
| Electric power (gas / fuel) kw | 3/3 | 6/6 | 11/9.5 | 13/11 | 24/24 | 37/31 | 33/33 | 56/70 | 70/70 |
