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WNS type low nitrogen gas (oil) steam boiler

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WNS type low nitrogen gas (oil) steam boiler

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The WNS type low nitrogen gas (oil) steam boiler is a boiler shell type full wet back flow three return fire tube structure,The flame burns under slightly positive pressure in the corrugated furnace with high combustion thermal efficiency. The corrugated furnace can be fully extended according to the temperature, and the heat transfer area can also be increased. The second return journey adopts the threaded pipe structure, which improves the heat absorption intensity of the boiler, effectively reduces the smoke exhaust temperature, saves energy and reduces consumption, and is economical to use. The third return journey adopts the big smoke tube technology,which can effectively reduce the smoke resistance of the boiler, improve the combustion efficiency of the burner, and reduce the operating noise of the burner.There is enough steam space in the upper part of the boiler, coupled with the use of advanced and reasonable steam separation device, the steam quality is quite stable.
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The WNS type low nitrogen gas (oil) steam boiler is a boiler shell type full wet back flow three return fire tube structure,The flame burns under slightly positive pressure in the corrugated furnace with high combustion thermal efficiency. This steam boiler is the high pressure boiler. The corrugated furnace can be fully extended according to the temperature, and the heat transfer area can also be increased. The second return journey adopts the threaded pipe structure, which improves the heat absorption intensity of the boiler, effectively reduces the smoke exhaust temperature, saves energy and reduces consumption, and is economical to use. The third return journey adopts the big smoke tube technology,which can effectively reduce the smoke resistance of the boiler, improve the combustion efficiency of the burner, and reduce the operating noise of the burner.There is enough steam space in the upper part of the boiler, coupled with the use of advanced and reasonable steam separation device, the steam quality is quite stable.

Widely used in chemical, oil, petrochemical, textile, printing and dyeing, plastic, fiber, carbon, papermaking, printing,wood, food, brewing, heating and air-conditioning industries.It is characterized by fast steam output, stable operation, convenient installation and use, low operating cost and long service life.

Characteristic description

1.lt has high/low water level alarm and low water level interlock protection function, steam pressure overpressure alarm and overpressure interlock protection function. At the same time, the drum is equipped with a verified safety valve to improve safety.

2.The Ultra low nitrogen fuel gas steam boiler is designed with a large furnace with large combustion space and is equipped with imported low-nitrogen burners. Nitrogen oxide emissions can be as low as 30mg/m3.

3.A waste heat recovery device is installed at the end of the boiler to further reduce flue gas temperature, realize the release of sensible heat of flue gas and latent heat in water vapor, and turther improve boiler efficiency.

4.Compact structure, convenient installation and transportation. The front/rear smoke doors are symmetrically movable hinged, which is convenient for opening, maintenance and cleaning. The rear smoke box has two doors, a fire hole and an inspection hole for easy inspection and the climbing ladder is convenient for installing auxiliary machines.

Technical parameters of WNS series low nitrogen steam boiler

Project /Type WNS*-1.0-Y(Q)series WNS*-1.25-Y(Q)serise
1 2 3 4 6 8 10 15 20
Rated evaporation t 1 2 3 4 6 8 10 15 20
Water temperature 20 20 20 20 20 20 20/104 20/104 20/104
Rated steam pressure MPa 1.0 1.25 1.25 1.25 1.25 1.25 1.25 1.25 1.25
steam temperature 184 194 194 194 194 194 194 194 194
Heated area m2 28.8 47.9 70.5 87.2 121 179.8 231 315.7 420.9
Thermal efficiency % 97.2 95.7 96.3 95.9 96.1 96.1 96.6 96.9 96.8
Fuel Consume Light oil Kg/h 65.1 132.4 197.4 264.3 395.7 527.6 655.7 992.2 1323.2
Natural gas Nm3/h 75.8 152.3 228.4 305.7 455.2 607.5 760 1138.1 1518
Power consumption KW 5 7 11 15 23 32 40 58 65
Boiler water capacity m3 3.3 3.6 5.4 7.6 9.8 11.7 14.8 25.8 34.2
Boiler weight t 5.6 7.3 10.3 12.7 15.7 19.7 23.5 33.7 51
Hearth size Diameter mm 700 800 900 1000 1100 1300 1400 1600 1800
Length mm 1540 2500 2800 3200 3800 4500 5108 5460 6000
Boiler back pressure Pa 503 533 923 1270 1437 1500 1638 2108 2580
Main steam pipe mm 65 80 80 100 125 150 150 200 200
Inlet pipe mm 25 40 40 40 50 50 50 50 65
Safety valve tube mm 2x40 2x40 2x40 2x50 2x65 2x65 2x80 2x100 2x100
Sewage pipe mm 40 2x40 2x40 2x40 2x40 2x40 2x40 2x40 2x40
Chimney diameter mm 300 350 400 400 600 800 800 900 1000
Shape Size Long mm 3546 4150 4700 5300 5860 6450 7180 7706 8150
Width mm 1760 2000 2200 2250 2440 2640 2840 3236 3440
High mm 2160 2385 2662 2764 2974 3244 3450 3833 4200
Base size Long mm 2830 3315 2662 2764 2974 3244 3450 3833 4200
Width mm 1350 1480 1675 1750 1900 2100 2260 2560 2850

 

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WNS type low nitrogen gas (oil) steam boiler
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