1. Flameless combustion: the air required for the gas is evenly mixed with the gas before burning, and the primary air excess coefficient is equal to the air excess coefficient when the fuel is completely burned, and no oxygen is required from the surrounding air during the combustion process. When the mixture of gas and air reaches the combustion zone, it can be burned in an instant.
2. Diffusion combustion:the fuel and air of the gas heating boiler are diffused at the gas nozzle and burned. It has the advantages of stable combustion, simple structure, but long flame, easy to produce incomplete combustion and carbonization of heating area.
3. Premixed combustion: gas heating boiler burners generally use this combustion mode. Before combustion, part of air and gas are mixed in advance (the excess coefficient of primary air is between 0.2 and 0.8), and then combustion is carried out. It has the advantages of clear combustion flame, enhanced combustion and high thermal efficiency, but the combustion is unstable, and the control of primary air and combustion composition are required.
277. which enterprise is better for steam gas heating boiler
At present, the steam gas heating boiler suppliers in the Chinese market have their own strong steam gas heating boiler samples through the gap of output. It is not known what the qualification standard for steam gas heating boiler is. Generally speaking, you want to accurately select the steam gas heating boiler suitable for your enterprise. For example, the following standards should be understood: first, the energy consumption index of the steam gas heating boiler is second, and the heating time of the steam gas heating boiler is three. Rated output of steam gas heating boiler 4. The above standards of steam gas heating boiler are not suitable in purchasing steam gas heating boiler, and it is also the same as that of steam gas heating boiler. The most necessary to think about is not appropriate. From a number of standards here, we should see whether there are any problems with the stability of a group of steam gas heating boilers. Obviously, choose the date of steam gas heating boilers and choose one to the best of your enterprise. Cost-effective steam gas heating boiler is the most important.