Nozzle cleaning and atomization are the main applications. Atomizing nozzles are divided into many types according to actual industrial applications. We study the quality of an atomizing nozzle, which can be judged from the size of the atomized particles of the atomizing nozzle.
The diameter of the atomized particles of the atomizing nozzle is an indicator used to measure the atomization effect. For a single atomized particle, the shape can be like a sphere, and for a group of atomized particles, the atomized particles of the atomizing nozzle are large or small, and the average particle size of the atomized particles of the atomizing nozzle must be obtained by statistical sampling method. .
The indicators of the atomized particle size of the atomizing nozzle generally include the average value of Sotel (ie SMD, Shore average, D32, volume area ratio), which refers to the ratio of the volume and surface area of the atomized particles of the atomizing nozzle; DV90 is the The index is also written as Dv0.9, D(V, 0.9), Dv90%, which refers to how much less than 90% of the particles atomized by the atomizing nozzle; the uniformity index – the particles atomized by the N nozzle cannot be all the same Size, thick and thin, there is an indicator to measure the uniformity, that is, the indicator N in the test report. In addition, there are DV50, droplet velocity, concentration and other indicators.
For atomization, atomization nozzle atomization particles have a very important significance for atomization effect:
The importance of atomizing particle size in atomizing nozzles:
1. The size of the atomized particles of the atomizing nozzle affects the evaporation time of the droplets;
2. The size of the atomized particles of the atomizing nozzle affects the movement trajectory; the smaller the particle, the faster the evaporation time;
3. The size of the atomized particles of the atomizing nozzle is directly related to the gas-liquid contact area, which affects the reaction effect and speed;
4. For fuel nozzles, the size and uniformity of the atomized particles in the atomizing nozzle affect the combustion efficiency and effect.
In addition, the atomizing nozzle atomizing particle size also affects the absorption distance of the atomizing nozzle in humidification applications.
To sum up, the atomized particles of atomizing nozzles play an important role in the practical application of atomizing nozzles. Before choosing an atomizing nozzle, in addition to factors such as model and material, you should also ask to view its atomization performance data sheet in order to choose a more suitable atomizing nozzle.