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WNS gas-fired integrated condensing low nitrogen steam boiler / nitrogen oxide 30mg/80mg

Gas steam boiler / liquefied gas / biofuel

Condensing boiler, low nitrogen boiler, 30mg boiler, 80mg boiler

Integrated gas-fired condensing steam boiler with high thermal efficiency

Equipped with ultra-low nitrogen burners, adopt flue gas external circulation to make nitrogen oxide emission ≤ 30mg.

The factory introduces an integrated low nitrogen condensing steam boiler. The water temperature of the boiler inlet can reach 85 ℃ through the economizer and condenser, while the exhaust gas temperature ≤ 65 ℃, which significantly improves the thermal efficiency.

Technical parameters of 2 ton integrated condensing low nitrogen 30mg

1.1 rated evaporation: 2.0t/h √

1.2 type: horizontal √

1.3 internal structure: three return, √

1.4 rated working pressure (MPA): 1.0 MPa 1.25mpa 1.6Mpa 2.5MPa

1.5 Burners: select imported brands that refer to or are relative to Italy's Baide, riyalu, univas, Finland's Olin, Germany's VISO, France's Guinuo, Britain's Liwei, etc; The model of the combustion engine matches the structural characteristics of the boiler, and the power of the combustion engine must match the rated thermal power of the boiler. Micro positive pressure combustion plus flue gas external circulation technology can meet the low nitrogen standard.

1.6 combustion control mode: double stage fire regulation or electronic comparison regulation √

1.7 fuel used: natural gas

1.8 calorific value of fuel: natural gas: 8600kcal/m ³

1.9 rated fuel consumption: 150m ³/ h

1.10 load regulation range (%): 20-100 √

1.11 rated load thermal efficiency (%): 100.21%

1.12 exhaust gas temperature (℃): 62 ℃

1.13 diameter of air inlet (mm): DN65

1.14 air inlet mode: external wire direct or flange butt joint

1.15 smoke exhaust diameter: 325/400mm

1.16 ignition mode of burner: electronic ignition √

1.17 operating noise (DB (a)): ≤ 85 √

1.18 power supply: three-phase five wire 380V, 50Hz √

1.19 controller interface: ≥ 10 inch Chinese color touch screen √

1.20 control system: PLC control √

1.21 overall dimension of unit: 4246 × two thousand one hundred and twenty-eight × 2900mm

1.22 self weight of unit (T): 8.9t (single body)

1.23 service life of unit: 15 years

2. Safety requirements;

2.1 it has the function of extremely low water level detection; √

2.2 it has abnormal water level, temperature and pressure protection devices; √

2.3 it has flameout protection and power failure self-locking protection; √

2.4 requirements: meet the national environmental protection requirements. Please give specific requirements √

2.5 the body is equipped with a discharge device to prevent gas deflagration.

2.6 other requirements: the economizer is made of carbon steel as a whole. Stainless steel is used for the boiler outsourcing. √

2.7 the pressure shall be controlled by the components of pressure transmitter, which refers to or is equivalent to the imported brand Danfoss; √

2.8 valves supporting the system shall be domestic high-quality brands; Gaoshan or Yuming √

2.9 3C certification is required for other parts √

2.10 water supply mode of boiler: continuous water supply. √

3. Make up water pump

3.1 the water supply pump adopts imported brands that refer to or are relative to Grundfos or niconi, √

4. Control system

4.1 control system and control box: standard configuration of boiler; √

4.2 main electrical components shall be imported brands with stable and reliable quality and performance (refer to or equivalent to Siemens, abb and Danfoss); √

4.3 PLC full intelligent touch screen control system; Standard configuration of boiler (including but not limited to the following contents)

4.3.1 PLC full intelligent control system: Graphic and Chinese dynamic display function, which can dynamically display the information of burners, water pumps, etc. in real time

Operation condition and flame change state; √

4.3.2 it can be interconnected with the current office automation network (WINDOWS9X, WindowsNT, Novell, etc.) and factory automation control network to realize the remote monitoring function of boiler operation status; √

4.3.3 interlock protection and alarm functions such as burner ignition failure and fuel leakage; √

4.3.4 burner flame automatic adjustment and flame automatic detection function; √

4.3.5 the boiler has ultra-high and ultra-low voltage protection. When the power supply voltage exceeds the normal range, the boiler power supply will be automatically cut off and an alarm will be given; √

4.3.6 boiler exhaust gas temperature display, control and over high protection function; √

4.3.7 boiler operation and setting password protection function; √

4.3.8 emergency stop switch device shall be set outside the boiler control cabinet; √