The spray nozzle transforms the total energy of a liquid into kinetic energy. This latter is used to break the liquid into small particles and distributing them evenly according to the desired distribution.
In certain cases, the kinetic energy is used to give the liquid a higher penetration. In others, the nozzle allows a variable flow depending on the pressure. Flow rate is determined by the inner diameter of step as well as the pressure. In general the relationship between flow and the pressure can be easily calculated through the equation;
Since Q1 and P1 are known flow rate and pressure of water. Q2 is the flow rate depending on the resulting pressure P2 chosen (other liquid).
- Cone Spray Empty: Type A – The particles are uniformly distributed to form the outer surface of a cone. Therefore, the area covered by the jet on a plane perpendicular to a circumference whose diameter will be proportional to the distance from the nozzle and at the same angle.
- Full Cone Spray: type B – In this type, the inner cone is formed by liquid particles uniformly. The area covered by the nozzle jet is perpendicular to, and in this case, is a circle whose diameter is a function of the distance and angle of spray.
- Spray Jet Plane: Type C – In this case, the covered area is perpendicular to the jet with a long ellipse shape whose width is a function of the distance between the nozzle and the area to be covered. The longitudinal dimension is a function of distance and spray angle.
- Sprayers: type D – In these type of nozzles where the compressed air is assorted with the liquid, producing a very fine spray.
Choosing Appropriate Uses of Nozzle:
The nozzle reg ulates the size of the droplet, and the fluidity and pattern or spray pattern. Use proper steam nozzle is essential for effective and safe application. Using the appropriate diversion spray nozzle, which can affect unwanted areas such as crop areas or private gardens, is reduced. There are other techniques to reduce the deviation, thereby increasing the accuracy of spraying. Flow regulation affects the pace of implementation. The size of the opening of a nozzle and the pressure of the substance affect the spray flow. These factors can be varied by changing the nozzle or adjusting the pressure.
The droplet size changes with various factors:
- Weather conditions such as humidity, temperature, speed and direction of the wind.
- Tip Size
- Spray angle
- Model and pattern or spray pattern
Generally the higher pressure the smaller the droplet size. Increasing the inclination angle of the spray can also reduce the size of the droplet.
Patterns of spray nozzles
There are three basic patterns of The spray nozzle. Each is suitable for a certain type of application.
- Flat or fan nozzle, spray nozzles drops through your flat tip. The drops leaving the nozzle tip flat forming a fan.
- Hollow cone nozzles produce the pattern or spray pattern of the fluid out of the cone. These nozzles are best when penetration and coverage are crucial.
- Full wide-angle cone nozzles produce larger droplets that are distributed by the entire cone.