( Q) Product Data Sheet (Integrated Low Nitrogen Condensation)
Rated working pressure
Rated steam temperature
Water supply temperature
Hydrostatic test pressure
Radiant heating area
Convection heating area
Economizer heating area
Design thermal efficiency (Oil/gas)
Smoke exhaust temperature (oil/gas)
Body water volume
Boiler transportation weight
Transportation Dimensions (length × width × height)
Installation dimensions (length × width × height)
Front tube plate
Rear tube plate
Backcomer chamber front tube Plate
Rear tube plate of the back-combustion chamber
Boiler shell cylinder ( Outer diameter × wall thickness)
φ1428 ×10; Q245R
Retort chamber cylinder (outer diameter × wall thickness)
Φ924 ×12; Q245R
Wave furnace (inner diameter×thickness×length)
Di600×10×1140; Q24 5R
Conical furnace bladder (inner diameter×thickness×length)
Short thread smoke pipe (outer diameter× Thickness×length)
Total number of short thread pipes
Long thread Smoke pipe (outer diameter×thickness×length)
Total number of long-threaded smoke pipes
Inspection door hole specifications
2. Valves, instrumentsp>
Main steam valve model specifications
Number of main steam valves
Model specifications of sub-steam valves
Number of steam valves
Safety valve model specifications
Number of safety valves
Model specifications of regular blowdown valves
Number of regular blowdown valvesp>
Feedwater valve model specification
Quantity of feedwater valve
Type and specification of water supply check valve
Quantity of water supply check valve
Glass plate water level gauge model specifications
Center distance: 350
Number of glass plate water level gauges
Two-color water level gauge
Water level electrode controller modelp>
Quantity of water level electrode controller
Pressure gauge model specification
Y- 150, range: 0～1.6Mpa
Number of pressure gauges
Model specification of electric contact pressure gauge
YX-150 , Range: 0～1.6MPa
Number of electric contact pressure gauges
Pressure transmitter model specifications
Number of pressure controllers
Energy saver pressure gauge
Y-150, range: 0～1.6MPa
Number of pressure gauges
Energy saving, condenser drain valve
Number of stop valves
Energy-saving, condenser water supply valve
Number of water supply valves
3. Supporting auxiliary equipment
Feed water pump: Model: KQDP25-2S×20; Flow rate: 2 m3/h; Head: 147 m; Motor power: 2.2 Kw; Quantity: 2 units
Gas burner: model ：VG5.1200 M/TC FGR; Output power: 160～1160 Kw; Motor power: 1.5 Kw
Fuel burner: Model: TBL85P; Output power: 200～850 Kw; Motor power: 1.1 Kw
Chimney: φ300; Height: 10 meters
Used in various industrial industries, such as Textiles, chemicals, papermaking, machinery, food, agricultural products processing industries, etc.
WNS series low nitrogen condensing boiler is a fully automatic, A quick-installed fuel (gas) boiler with horizontal internal combustion and low-nitrogen condensation. The boiler body adopts a wet-back two-return structure: the corrugated furnace bladder and the re-combustion chamber are the return stroke, and the threaded smoke tube constitutes the return stroke. The economizer and condenser are placed on the top of the boiler and form the third return pass of the flue gas outside the furnace.
. The economizer and condenser have a large heat exchange area, and the water vapor in the flue gas has a high condensation rate, which can fully absorb the heat released by the condensation of the water vapor in the flue gas, and the thermal efficiency can be as high as 99%.
The convection heating surface of the threaded smoke tube is used to effectively improve the heat transfer efficiency of the boiler.
Good environmental protection effect. Some harmful components such as CO2, NOX, SO2 in the flue gas are dissolved in the condensed water, which effectively reduces the emission of atmospheric pollutants. At the same time, large-scale furnace structure and flue gas recirculation technology are adopted. For gas-fired boilers, ultra-low nitrogen emissions and NOX emissions can be achieved.≤30mg/Nm3, fully complying with increasingly stringent environmental protection requirements.
The energy saver, condenser and boiler are arranged as a whole, quick-installed and shipped out of the factory, easy to install, compact structure, beautiful and generous. It occupies less area and reduces infrastructure investment.
The spiral fin tube and shell of the economizer and condenser are made of sulfuric acid corrosion-resistant ND steel material, which greatly improves the service life of the equipment. The combination of intelligent combustion control and fully automatic safety chain protection system ensures economical, environmentally friendly and safe operation.
In addition to the sensible heat of the flue gas, water vapor also takes away a large amount of latent heat of vaporization in the heat loss of the exhaust gas of the boiler. If the exhaust gas temperature is lowered to condense all or part of the water vapor in the flue gas, and the latent heat released during the condensation process is recovered and utilized, the effective heat utilization of the boiler will increase, which will significantly improve the thermal efficiency of the boiler.
WNS type low-nitrogen condensing gas-fired boiler is aimed at key technical factors such as the relationship between the condensation rate of water vapor in the flue gas and the exhaust gas temperature, the relationship between the condensation rate and thermal efficiency, and the corrosion rate of condensed water to different steel grades. By rationally designing the heating surface, reducing the exhaust gas temperature, ensuring that the water vapor in the flue gas reaches the condensation rate required by the design, and greatly improving the thermal efficiency of the boiler.
Due to the large-scale furnace structure and flue gas recirculation technology, for gas-fired boilers, ultra-low nitrogen emissions can be achieved, NOX emissions ≤ 30mg/Nm3.