Centrifugal nozzle

Abstract

The invention discloses a centrifugal spraying head which comprises a closed spraying disc (3) in a flat round cake shape. A plurality of nozzles (10) in the fixing direction are arranged on the outer ring of the spraying disc (3) in the peripheral direction at a distance. An impeller (7) next to the inner wall of the spraying disc (3) is arranged in the spraying disc (3). The spraying disc (3) is provided with a pesticide inlet (6). The impeller (7) is installed on a main shaft of a drive device. According to the centrifugal spraying head, centrifugal force generated when the impeller is driven to rotate by a motor sprays liquid out fast and uniformly in a non-horizontal manner, and the electric spraying head achieves the downward uniform atomizing effect. The spraying head is applicable to onboard spraying of pesticide, powder and the like.

Description

technical field [0001] The invention relates to a spray head, in particular to a centrifugal spray head. Background technique [0002] The existing centrifugal nozzle is composed of a motor, an atomizing disc, a locking knob, a pipe, etc. When the centrifugal nozzle with an atomizing disc structure works, the liquid rotates with the rotation of the atomizing disc, and the support force on the inner surface of the atomizing disc , friction, and centrifugal force, the liquid is also rising while rotating, and finally sprayed out from the top of the atomizing disc to realize the function of atomizing and spraying the liquid at a low flow rate. Engraved on the upper surface of the atomizing disc The right amount of grooves will properly improve the spraying effect. This kind of centrifugal nozzle has the following disadvantages: 1: high installation requirements, low adaptability, the atomizing plate must be placed horizontally and needs to work in a relatively stable state, th...

AI Technical Summary

Problems solved by technology

This kind of centrifugal nozzle has the following disadvantages: 1: high installation requirements, low adaptability, the atomizing plate must be placed horizontally and needs to work in a relatively stable state, the tilt of the atomizing plate will cause the liquid to accelerate to the appropriate speed Spraying leads to poor atomization effect; 2: The linear uniformity is not high. This kind of centrifugal nozzle sprays around, and it will have a relatively uniform effect on the circle centered on the nozzle. Each circle is equivalent to a droplet When the ring is projected onto a straight line, it will show a phenomenon that the two sides are dense and the middle is sparse. That is to say, when the nozzle is moved to spray, the sprayed liquid is very uneven on the vertical line of the moving direction. polarized

At the same time, increasing the spray flow rate will aggravate this polarization phenomenon; 3: Due to horizontal spraying, the spray width is positively correlated with the initial velocity, and the atomization effect is also positively correlated with the initial velocity. To improve the atomization effect will inevitably increase the spray width, and in a certain In some occasions where the airflow is relatively turbulent, when the horizontal spraying width is relatively large, it is easy to cause upward phenomenon, which has a great impact on the spraying effect

Therefore, the existing centrifugal nozzles are not practical in the occasions that require uniformity of spraying, and there is an urgent need for a centrifugal nozzle that does not have high requirements for the use environment and installation, and has high linear uniformity of spraying and non-horizontal spraying.

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