Boiler retrofit of high performance burner
Due to the increasingly strict environmental control, old and high pollution boilers and coal-fired boilers in all regions will be eliminated. Alcohol-based biofuels enter the boiler market as environmentally friendly alternative fuels. If alcohol-based biofuels are to be used, the old boilers and coal-fired boilers should be transformed, master the boiler transformation technology, select the burners matching the boiler, and become the doorstep for alcohol-based biofuels to enter the boiler industry.
A fully automatic oil (gas) burner with good performance is installed on the boiler. Whether the combustion performance is still the same depends largely on whether the aerodynamic characteristics of the two match. Only the good cooperation between the boiler and the burner can give full play to the performance of the burner, ensure the stable combustion of the boiler, achieve the expected heat output and improve the thermal efficiency of the boiler. Key points for matching gas turbine and boiler:
1. The matching monobloc fully automatic gas turbine with gas dynamic characteristics injects fuel into the combustion chamber in the furnace, and completely burns in the furnace, outputting heat. The combustion completeness of the actual product is measured in a specific standard combustion chamber. Therefore, the conditions of the standard laboratory are usually used as the selection conditions for matching the burner and boiler. The results show that: (1) furnace power; (2) Furnace gas pressure; (3) Furnace size and geometric diameter length. Aerodynamic characteristics matching, that is, the degree to which all three conditions must be met.
2. The power of the power burner refers to how many kilograms and volumes of fuel can be burned per hour when fully burned, and at the same time, the corresponding thermal energy and heat can be output. The standard of boiler in the national standard is steam output and fuel consumption, so the two must match when selecting.
3. The air pressure in the boiler is in the standard boiler. The hot gas flow starts from the burner and enters the atmosphere through the furnace, heat exchanger, flue gas collector and exhaust channel, forming the whole heat flow process. The hot gas flow generated by the combustion of alcohol fuel and the pressure generated by the inlet flow in the combustion chamber of the furnace, and flow to the outlet like river water. The furnace wall, channel, elbow, baffle and exhaust duct of the combustion chamber in the furnace have certain resistance to the smooth flow of gas, which will cause pressure loss. Therefore, it is necessary to maintain a certain flue gas pressure in the furnace. When using the burner, it is necessary to refer to the furnace pressure, and the hot air pressure must maintain a certain flue gas pressure.
4. The influence of furnace size and geometry on burner selection. For boilers, in terms of the space size of the furnace, the heat load intensity of the furnace should be considered first, and the standard volume of the furnace should be determined according to the basic load intensity of the furnace. After determining the furnace volume, the shape and size of the furnace shall be considered. Make full use of the space, avoid dead corners as much as possible, ensure the normal flow of hot air, and ensure the full combustion of fuel in the production process. In other words, it is necessary to ensure that the flame emitted by the burner can stay in the furnace for a long enough time, and that the content of carbon monoxide in the flue gas is low, as well as the residual amount of fuel particles in the flue gas.
The emergence of new burners will eliminate a series of environmental pollution problems caused by coal-fired boilers in terms of equipment. As a brand of oil and gas multi-purpose burner, Europa Burner will provide high-quality products and perfect after-sales service guarantee for burner demand customers from various aspects, and provide more convenient ways for enterprises and individuals to transform environmentally friendly boilers.