WNS Series Three Pass Fire Tube Boiler

ZOZEN Three Pass Fire Tube Boiler

Product thermal capacity: 1 – 20 t/h

Working pressure: 0.7-2 MPa

Available fuel: Natural gas, coke oven gas, biogas, diesel, heavy oil, light oil, crude oil, etc.

Available industries: Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.

WNS Series Three Pass Fire Tube Boiler Introduction

The WNS series three pass fire tube boiler adopts a horizontal three-pass design, combining advanced technology with a robust structure to ensure efficient thermal energy utilization and low fuel consumption.

The core design of the WNS series three pass fire tube boiler is based on the principle of three pass heat exchange, which allows for more complete utilization of the thermal energy generated during combustion. After the fuel is atomized by the burner, the resulting flame fills the entire wave-shaped furnace chamber and transfers radiant heat through the furnace walls, which constitutes the first pass. The high-temperature flue gas produced by combustion converges in the reburning chamber and then turns to enter the second pass, the threaded smoke tube bundle area. After convective heat exchange, the flue gas temperature gradually decreases as it moves toward the front smoke box, where it turns again to enter the third pass, the smooth tube bundle area. Finally, the gas flows through the rear smoke box into the condensing economizer and chimney, and is discharged into the atmosphere.

WNS Series Three Pass Fire Tube Boiler Advantages

High Efficiency and Energy Saving: The three-pass design ensures efficient utilization of thermal energy, reducing fuel consumption and lowering operational costs.

Energy-Saving and Environmentally Friendly: The series is equipped with high-efficiency economizers and condensers that effectively recover waste heat from flue gases, lower the flue gas temperature, and improve the overall thermal efficiency of the boiler. This helps reduce energy consumption and CO2 emissions.

Compact Structure: The WNS series boiler features a horizontal design, occupying less floor space and offering a compact structure that is easy to install and maintain. Additionally, the boiler body is made of high-quality steel and produced using advanced manufacturing processes, ensuring durability and safety.

Automated Control: The boiler is equipped with an intelligent control system that enables fully automated operation, ensuring the boiler runs at optimal conditions and enhancing operational convenience and safety.

WNS Series Three Pass Fire Tube Boiler Specification

Model Rated steam capacity (t/h) Rated working pressure (MPa) Rated steam temperature (℃) Maximum transport weight (t) Maximum transport dimension (m)
WNS1-0.7-Q(Y) 1 0.7 170 4.5 3.25×1.80×2.00
WNS1-1.0-Q(Y) 1 1 184 4.5 3.25×1.80×2.00
WNS1.5-1.0-Q(Y) 1.5 1 184 7 3.65×2.05×2.45
WNS1.5-1.25-Q(Y) 1.5 1.25 194 7 3.65×2.05×2.45
WNS2-1.0-Q(Y) 2 1 184 9 4.60×2.20×2.60
WNS2-1.25-Q(Y) 2 1.25 194 9 4.60×2.20×2.60
WNS3-1.0-Q(Y) 3 1 184 11.5 5.35×2.40×2.80
WNS3-1.25-Q(Y) 3 1.25 194 11.5 5.35×2.40×2.80
WNS4-1.25-Q(Y) 4 1.25 194 15 5.00×2.60×2.95
WNS4-1.6-Q(Y) 4 1.6 204 15 5.00×2.60×2.95
WNS5-1.25-Q(Y) 5 1.25 194 18 5.55×2.658×3.20
WNS5-1.6-Q(Y) 5 1.6 204 18 5.55×2.658×3.20
WNS6-1.25-Q(Y) 6 1.25 194 19.5 5.93×2.80×3.20
WNS6-1.6-Q(Y) 6 1.6 204 19.5 5.93×2.80×3.20
WNS8-1.25-Q(Y) 8 1.25 194 25 7.00×2.80×3.25
WNS8-1.6-Q(Y) 8 1.6 204 25 7.00×2.80×3.25
WNS10-1.25-Q(Y) 10 1.25 194 27.5 7.65×2.80×3.25
WNS10-1.6-Q(Y) 10 1.6 204 27.5 7.65×2.80×3.25
WNS15-1.25-Q(Y) 15 1.25 194 40 7.95×3.50×3.75
WNS15-1.6-Q(Y) 15 1.6 204 40 7.95×3.50×3.75
WNS20-1.25-Q(Y) 20 1.25 194 52 8.55×3.90×4.15
WNS20-1.6-Q(Y) 20 1.6 204 52 8.55×3.90×4.15

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