The basic performance characteristics of six common atomizing nozzles are introduced
 
Common atomization nozzle pressure atomization nozzle, rotary atomization nozzle, medium atomization nozzle, impact atomization nozzle, ultrasonic atomization nozzle, electrostatic atomization nozzle and so on, the following small make up of the above six common atomization nozzle basic introduction:
 

1. Pressure atomizing nozzle

 
The pressure of the spray liquid is increased, and the high-pressure liquid flows through the mouth of the atomizing nozzle and collids with atmospheric pressure to produce atomized particles. After the high-pressure liquid of the direct atomizing nozzle is ejected from the nozzle mouth, the liquid is in a disordered state and can be directly broken into atomized particles from the liquid. This process is called the initial crushing. If the liquid flow rate is large enough, secondary crushing phenomenon can also occur, and the atomization effect is more obvious. The disorder fluidity and atomization degree of liquid flow can be judged. The pressure atomization nozzle is widely used in industry because it is convenient to use.
 

2. Rotary atomizing nozzle

 
Rotary atomizing nozzle inside the structure of vortex chamber, the liquid in the interior of the spray nozzle to form film, atomized droplets jet nozzle, the liquid surface tension to overcome inertia, under the dynamic action of air liquid broken into droplets can make the liquid film pressure and injection speed burst into filaments and ribbon, with the air relative motion is accelerated, It can even be achieved to leave the nozzle mouth of the atomizing nozzle can form spray, for this kind of atomizing nozzle, its atomizing principle includes the exchange of centrifugal atomization and speed atomization, and the swirling chamber of the rotating atomizing nozzle is the main determinant of the atomization effect. The rotary atomizing nozzle has the ability to produce sufficient atomization. One drawback is that the spray speed is slow and the shape of the spray is hollow and conical. The spiral atomizing nozzle is widely used because of its low cost, smooth atomizing road and not easy to block. It is generally used in flue dust removal process.
 

3. Medium atomizing nozzle

 
Using fluid phase axial and vertical direction of the high-speed jet, to make liquid atomization, therefore is also called double fluid atomization nozzle, this kind of spray nozzle often consists of center pipe, outer annular aperture, using high speed air flow with low speed liquid column of liquid or liquid membrane of mutual impact, friction, cataclastic become tiny atomized particles. The common medium atomizing nozzle is the air atomizing nozzle. Medium atomization nozzle atomization particles are small and uniform, atomization is sufficient, so it is widely used.
 

4. Impact-type atomizing nozzle

 
The liquid is shot out of the atomizing nozzle at high speed, collides with the disk and thimble at the outlet of the atomizing nozzle, or the two streams of fluid collide together and break into fine atomizing particles. Impinging atomization nozzle can produce spray at low pressure, but its disadvantage is that the droplet diameter distribution is uneven and the spray speed is low.
 

5. Ultrasonic atomizing nozzle

 
Ultrasonic atomizing nozzle is usually driven by compressed air or electromagnetic stopper so that the liquid produces high-speed shock and the formation of atomizing particles, because the vibration frequency of the oscillator exceeds the sound wave, so it is called ultrasonic atomizing nozzle. Through the pulse width adjustment of the flow control function can make the ultrasonic atomization spray repeatedly on/off. Generally used in laboratories and medical devices and other places, atomization effect is very good, but the liquid atomization amount is small, high cost, belongs to the high precision equipment.
 

6. Electrostatic atomizing nozzle

 
The high voltage electrostatic generator charges the medium liquid and atomized particles, reducing the surface tension and viscous resistance of the medium, so that the liquid is broken into very fine atomized particles, and the atomized particles are small and uniform. After charging the droplet, the charged droplet is easy to produce secondary atomization under the action of high voltage electrostatic field. The high voltage electrostatic atomization has the advantages of small droplet size, single diameter scale of atomized particles and wide spray range. Electrostatic atomization nozzle is only limited to part of the high precision atomization process, mainly used in fine pesticide spraying, combustion generator, nano spraying, and other industries.