What skills should the burner of oil and gas-fired boiler have?
What skills should the burner of oil and gas-fired boiler have?
In order to meet the requirements of the combustion process in the furnace and ensure the safe and economic operation of the boiler, the burner should have the following main technical performance:
1. High combustion efficiency: For the burner, within a certain range of adjustment, it should be able to atomization the fuel oil well, with fine and uniform oil particles, an appropriate oil mist angle, and even oil mist distribution along the circumference to increase the contact area between the oil mist and the air. For the gas burner, under the rated gas pressure, it should be able to pass the rated gas volume and fully burn it to meet the production requirements of the boiler rated thermal load.
2. Reasonable air supply to ensure stable and complete combustion: Supply the necessary air for combustion from the torch root, mix it quickly and uniformly with the oil mist to ensure complete combustion, and minimize the harmful substances (such as CO, NOX) generated in the flue gas. It can form a suitable recirculation zone to ensure that the fuel and air are in a higher temperature field to ensure rapid ignition and stable combustion.
3. The flame generated by combustion is compatible with the shape of the furnace chamber: The flame coverage should be good. The flame temperature and blackness should meet the requirements of the furnace chamber, and the flame should not splash the furnace wall, furnace bottom, and extend to the convective heating surface.
4. Large adjustment range, able to adapt to the adjustment of boiler load: The burner can operate stably without flashback and flashback when the boiler load is up to the rated load.
5. The energy required for fuel atomization is small.
6. The resistance of the air supply device is small.
7. The operation of combustion, ignition, adjustment and other operations is convenient, safe and reliable, and the operating noise is small.
8. Simple and compact structure, lightweight body, reliable operation, easy adjustment and maintenance, and easy to achieve automatic control of the combustion process.