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The solution of improving misting nozzle misting effect is not good
Misting nozzle is a kind of device that can misting liquid and suspend it evenly in the air. Its working principle is through the internal pressure, the internal liquid is squeezed into the nozzle, the misting nozzle is placed inside a piece of iron, high-speed flow of liquid impact on the iron sheet, bounce to form a diameter of 15-60 micron atomized particles, and through the nozzle outlet. When spraying spray nozzle is used in various industries, the misting effect of 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?
The relative velocity difference between the gas-liquid two phases is increased to increase the pressure force, which makes the droplet break finer under the action of larger aerodynamic force.
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 exit velocity of droplets is small, they will converge into large droplets, and the spray will cause humidity in the house. If the exit velocity of droplets is large, the degree of misting can be improved. However, this will reduce the relative degree of gas-liquid and make the aerodynamic misting droplets worse.
The geometrical shape and size of nozzle and mixing tube have great influence on misting performance. Therefore, in the design of the models, not only their effects on misting, but also the overall performance changes after they are combined should be considered.
1. Clean misting nozzle regularly
Spray regular cleaning nozzle spray, not only can keep the nozzle spray good spray effect, but also can timely remove those chemical properties of residue, so as to extend the service life of nozzle spray. As for how often to clean, this needs to be combined with their own nozzle spray use situation to decide.
2, do a good job of misting nozzle corrosion prevention
First, improve the misting nozzle atomization effect is not good scheme.
1. Increase the air pressure of misting nozzle
The relative velocity difference between the gas-liquid two phases is increased to increase the pressure force, which makes the droplet break finer under the action of larger aerodynamic force.
2. Improve the gas-liquid velocity of misting nozzle
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 exit velocity of droplets is small, they will converge into large droplets, and the spray will cause humidity in the house. If the exit velocity of droplets is large, the degree of misting can be improved. However, this will reduce the relative degree of gas-liquid and make the aerodynamic misting droplets worse.
3. Improve the overall performance of misting nozzle
The geometrical shape and size of nozzle and mixing tube have great influence on misting performance. Therefore, in the design of the models, not only their effects on misting, but also the overall performance changes after they are combined should be considered.
4, reduce the misting nozzle water supply system
Spray water supply system flow, pressure and nozzle geometry size, structure shape of the relationship, improve the atomization effect. In particular, the water pressure of the municipal water supply system has a great influence on the atomization effect. 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, prone to failure, short life, especially spray system. 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 heating up because the machine cannot reach the ideal pressure value at the beginning of the start-up, and reduce the service life of the main engine of the atomized water supply system, that is, the high pressure washer.Two, the daily maintenance method of misting nozzle
1. Clean misting nozzle regularly
Spray regular cleaning nozzle spray, not only can keep the nozzle spray good spray effect, but also can timely remove those chemical properties of residue, so as to extend the service life of nozzle spray. As for how often to clean, this needs to be combined with their own nozzle spray use situation to decide.
2, do a good job of misting nozzle corrosion prevention