The fuel injector of the burner can produce very fine droplets. The smaller the diameter of the droplets, the more beneficial it will be for combustion. So, how exactly does the burner nozzle produce atomization?
The burner nozzle has two atomization principles. The first is to pump the fuel to a high pressure through the oil pump, and then enter the burner nozzle, and the burner nozzle has a swirling vane inside, that is, there are several eccentrics. The flow channel composed of grooves, when entering these flow channels, the fuel will start to rotate at a high speed. At the end of the flow channel is a small hole, where all the fuel gathers and maintains a certain speed, and then it is ejected through the small hole. Due to the centrifugal effect, the injected fuel will be thrown out at a high speed, and will be broken into fine droplets at the moment of contact with the air. The core technology of this fuel injection nozzle is the matching of the flow channel and the nozzle and the smoothness of the various circulating parts, because the smoothness directly affects the speed of the fuel flowing through.
The other is through a structure similar to an air atomization nozzle. The high-pressure air is sent into the nozzle through an air compressor installed in the combustor, and then mixed with fuel in the nozzle. With a high injection speed, the fuel will be crushed in contact with air, resulting in the formation of very small droplets. The nozzle of this structure has the characteristics of long spraying distance and is an ideal nozzle for methanol fuel.