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Nozzle physical characteristics

1 spray efficiency

      The pressure nozzle is converted to kinetic energy of a body, the efficiency of the spray nozzle must be as kinetic energy of the liquid in the interior of the nozzle is determined, the greater the energy flow pleasant, in addition, since the nozzle inner surface and the presence of the liquid itself Individually friction, resulting in energy loss of time. This problem depends on the form and processing quality nozzle merits, in general, the efficiency of the spray nozzle approximately between 55% -95%. The above information does not apply to air-assisted spray nozzle, because the air-assisted spray nozzle must consider a number of energy change

2 spray particle size

      Nozzle size of the resulting atomized droplets, depending on the atomization nozzle structure, the fluid energy is weak, the liquid surface tension and liquid density, because the size of the atomized droplets are not exactly the same, so the average spray atomizing nozzle particle size has become an important representative of the data. In many applications in the nozzle, the spray particle size is usually very important, for example: diameter of the exhaust gas cooling tower spray applications is extremely important, the particle size is too large droplets at a given time can not be completely evaporation, not evaporated droplets into the cooling tower segment after bag filter dust extractor will cause dust collector ineffective or complete failure; Conversely, particle size is too small droplets, may no longer within the established time The exhaust gas is cooled to a predetermined temperature range, excessive exhaust heat into the cold section of the tower-type dust collector bag filter, not only will the bag burned, more likely to have a fire.

      Spray particle size indicates a total of four, which is most commonly used with an average particle size, the average particle diameter is the ratio of droplet volume and surface area, commonly D32 represents, and UM (microns) as the unit.

Average particle size

      Is the ratio of droplet volume and surface area, commonly used to represent D32, the most common of the nozzle industry reference data.

Number-average diameter

      Is more than a diameter of the droplets measured summed and then divided by the total number of droplets measured, the average value obtained.

A weight average diameter

      Is the sum of all the weight was measured, divided by the total number of measured and converted into an average diameter.

Number median diameter

      Refers to 50% of the droplets fall diameter greater than half the diameter of the spray droplets, there are less than half the diameter of the spray droplets.

Spiral nozzles, industrial nozzles, nozzle, nozzle
3 spray angle

    Spraying is carried out, the closest angle between both sides of the spray rate, known as the "spray angle." Spray angle and spray distance (the distance the spray nozzle to the mouth) relationship with the size of the area covered by the spray.

4. Traffic distribution

    In order to adapt to different environmental requirements, engineers in the design of nozzles, each nozzle has given different characteristics of flow distribution, flow distribution can be divided into: the standard convex distribution, uniform distribution, concave distribution and distribution unit other four different designed primarily to allow the nozzle alone or in complex with the column, it is possible to achieve optimum uniformity and impact, in the following illustration, the detailed description of the various styles of nozzle flow distribution methods and spray section, in order to facilitate customer choice, please visit our our product selection Home

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