WNS type low nitrogen gas (oil) steam boiler

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0.5-20t/h WNS series boiler

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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Description

Parameters

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
Project /Type			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
Fuel Consume	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
Hearth size	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
Base size	Width	mm	1350	1480	1675	1750	1900	2100	2260	2560	2850