Low Nitrogen Oxide Gas Burner
In order to be more energy-saving and environmentally friendly, SWT burner has developed a new type of Low Nitrogen Oxide Gas Burners.The new generation of THG/LN/FGR series low NOx gas burners adopts an innovative combustion head design to optimize the air/fuel ratio, staged combustion and fuel reburning technology to prevent high oxidation in the flame...
Introduction
In order to be more energy-saving and environmentally friendly, SWT burner has developed a new type of Low Nitrogen Oxide Gas Burners.
The new generation of THG/LN/FGR series low NOx gas burners adopts an innovative combustion head design to optimize the air/fuel ratio, staged combustion and fuel reburning technology to prevent high oxidation in the flame. The air-air mixed airflow ejected from the combustion head at a high speed forms an internal circulation of the flue gas, thereby further reducing the emission of pollutants. The technology of external circulation of flue gas makes the emission level far below the standard requirement.
Technical parameters and configuration of low nitrogen burner
According to the project requirements, a 15-ton gas-fired boiler is equipped, the biogas is calculated according to the low calorific value of 5000Kcal/Nm3, and the pressure of the biogas is 12-20KPa. The main technical parameters of a single burner are as follows:
Serial number | Project | Technical parameter | Note |
1. | Boiler | 15t/h | |
2. | Burner model | THG105LN-FGR | |
3. | Structure | Split | |
4. | Manifold size（mm） | DN125 | |
5. | Adjustment method | Electronic proportional adjustment | |
6. | Turndown ratio | 1:5 | |
7. | Rated output power（kW） | 14000 | |
8. | Rated air consumption Nm3/h | ~1800 | Theoretical Value |
9. | Maximum air consumption Nm3/h | ~2400 | Theoretical Value |
10. | Motor Power（kW） | 55 | |
11. | Gas pressure requirements kPa | 30~35KPa | Dynamic Pressure |
12. | Flame diameter（mm） | 1150 | Adjustable Flame |
13. | Flame length（mm） | 4750 | |
14. | Noise（db） | ≤85 | |
15. | Configure the number of burners | 1 | |
16. | Combustion form | Diffusion combustion | |
17. | Burner arrangement and installation angle | Front wall | |
18. | Ignition fuel | Natural gas |
Engineering case
The user's 15-ton gas-fired steam boiler project uses biogas and is equipped with an ultra-low nitrogen burner to meet the requirement of boiler flue gas NOx emission less than 30mg/m3.
SWT burner is equipped with a THG105LN-FGR ultra-low nitrogen gas burner from Italian T&H Thermal Energy Equipment Company for its single 15-ton boiler selection through relevant data and standards.
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