Misting nozzle is a device that can atomize liquid and suspend it uniformly in the air. Its working principle is through the internal pressure, the internal liquid is squeezed into the nozzle, the nozzle is placed inside a piece of iron, the high-speed flow of liquid impact on the iron sheet, after the rebound to form a diameter of 15-60 microns or so atomized particles, and through the nozzle outlet. When spraying spray spray in various industries, the misting effect of the misting nozzle is sometimes not as good as our ideal effect, that is, the misting quality is not high enough. So the question comes, what is the reason for the poor misting effect of the misting nozzle?


 
First, improve the misting nozzle misting effect is not good scheme
1. Increase the air pressure of the misting nozzle
The relative velocity difference between the gas-liquid two phases is increased to increase the pressure force, so that the droplet is broken finer under the action of larger aerodynamic force.
 
2, improve the misting nozzle gas liquid speed
The exit velocity of the gas liquid is increased to enhance the collision, so that the relative droplets can be further broken during the collision. The experiment found that if the droplet exit velocity is small, it will converge into large droplet, and the spray will cause humidity in the room. If the droplet exit velocity is large, the degree of misting can be improved. However, this will reduce the relative degree of gas-liquid, so that the aerodynamic misting droplets become worse.
 


3. Improve the overall performance of misting nozzles
The geometry and size of nozzle and mixing tube have great influence on misting performance. Therefore, in the design of the model, in addition to considering their influence on misting separately, we should also consider the change of the overall performance after they are combined.
 
4, reduce the misting nozzle water supply system
Spray water supply system flow, pressure and nozzle geometry, structure shape of the relationship, improve the misting effect. In particular, the water pressure of the municipal water supply system has a greater impact on the misting effect, and the higher the water pressure, the finer the water mist particles. However, high water pressure often brings some problems, such as high pressure on all parts of the water supply system, easy to fail, short life, especially the spray system is more vulnerable. In addition, when adjusting the water pressure, do not adjust the pressure of the machine to the maximum value, so as to avoid the machine from heating up because the machine cannot reach the ideal pressure value at the beginning of the startup, and reduce the service life of the main engine of the atomized water supply system, that is, the high pressure washer.
 
Second, the daily maintenance method of misting nozzle
1. Clean misting nozzle regularly
Spray Regular cleaning nozzle spray, not only can the nozzle spray to maintain a good spray effect, but also to remove those chemical residues in time, thus extending the service life of the nozzle spray. As for how often to clean, it needs to be decided in combination with the use of their own nozzle spray.
2, do a good job of misting nozzle corrosion prevention.