SU1371669A1 - Liquid sprayer - Google Patents

Description

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The invention relates to agricultural man-building, in particular, rotational (rotary) sprayers, used to disperse liquids and suspensions in plant protection machines, and can be used in other areas of the national economy that require production. fine dispersion of liquid.

The purpose of the invention is to save the drug by more evenly distributing it across the working width of the sprayer and improving the quality of the spray.

On fi. I schematically shows a liquid sprayer, a view, and a plot of the density of the distribution of liquid 1 and the liquid across the width of the capture of the sprayer (the dotted line shows the plot of the density of distribution of the liquid obtained from the sprayer without a screen); in fig. 2 spray liquid with a working body in the form of a mesh drum, side view; in fig. 3 section. L-L in FIG. 1; in fig. 4 - liquid dispenser with (working body in the form of a conical bowl dispenser mounted above the transporter of potato dressers; on the FNG. 5 - section BB in Fig. 4 and a plot of the density of the liquid distribution in P1irin of the transnorter (the dotted line shows the plot of the density of the liquid distribution sprayer without screen); pa Fig. 6 dispersed, liquid holder with a working opi a.HOM in the form of a package of disks.

The liquid sprayer contains a Pyro-flare spray body 1 mounted on the drive shaft 2 and rotated from the engine 3. tube 4 for supplying the working fluid, protective cover 5 with pipe 6 for draining the fluid exchanged at the bottom of the cover 5 and the window 7, allowing a part of the circular torch to be sprayed and its element 1 in the direction of the newness being processed. In window 7, a screen 8 is installed in the form of an annular reflecting plate with a curved upper edge with an edge bent inside the casing 5. The curvilinear edge configuration corresponds to the distribution of the drug across the width of the sprayer without a screen, and the maximum height is from) the plate is located in that part of the window 7, in which the trajectories of the liquid droplets that form the maximum (ix)) 6 on the plot ) the deposition of the drug according to | np) and the seizure of rasnmitel.

The screen and can be made with the possibility of longitudinal movement and fixation with respect to the axis of the drive shaft 2, for example, with a cross section of the cross grooves 10 (Fig. 4), made in a protective casing 5, which can be rigidly fastened with screen 8 bolts I1 and fixed 1 with a single nut. In another design, the screen 8 (FIG. 6) may not be interleaved between the wall of the protective casing 5 and on

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the control plate 12, and its fixation is made by screws 13.

To increase the uniformity of the distribution of the drug while simultaneously operating several sprayers in one line, for example, on the rods 1 1x sprayers, the edges 14 (Fig. 2) of the protective cover 5 forming the window 7 can be made with a bevel that at the end sections of the spray grip sprays gradually reduces the distribution density of the drug (Fig. 1). This allows docking of two or more sprays working next to each other without jumps or dips in the plot of the distribution of density of the | | ata across the width of the stangch to the whole (.) M.

The spraying element 1 with an increased liquid jet plume (this is a prerequisite. For technical solution) can be made in the form of a mesh drum (Fig. I-3), bowls with inclined slots (Fig. 4-5), a package of disks (Fig. 6) or it can be of any other design, providing in the cross section of a circular torch a flow width of liquid droplets that is many times greater than the diameter of the sprayed droplets. The width of the stream of liquid droplets can vary from 5 to 250 mm and even reach even larger values.

The screen 8 in the form of a reflecting plate has a curvilinear upper edge, the configuration of which corresponds to the law of the density of the distribution of the drug along the njnrine capture of the sprayer without a screen.

The curvilinear top crotch configuration and the screen size in cena, m are determined experimentally by plotting the density of the sedimentation of the liquid on the capturing captain of the nebulizer without the screen and determining the geometric dimensions of the screen taking into account the scale factor, i.e. and the angle of inclination of the window to the treated surface.

The liquid sprayer is designed for high-quality processing of various flat surfaces, as well as objects located on these surfaces, and works as follows.

The working fluid through the tube 4 is fed to the vrashayup1is from the engine 3 through the drive shaft 2 Pyro-flare spray element 1, which disperses it into small droplets by a circular torch, with the liquid droplets flying from the nebulizer along trajectories close to the tangent to its circumference. A part of liquid droplets, the trajectories of which are not directed onto the surface being processed or extend beyond the required working width of the atomizer, is shielded by a protective casing 5, is deposited on its inner wall and

flows down to the lower part of the casing, from where it is sucked out through pipe 6.

The remaining sprayed liquid passes through the window 7 in the casing 5 and enters the processing objects. In this case, the screen 8 installed in the window 7 detains those liquid droplets that cause its uneven distribution across the working width of the atomizer without the screen, crossing the flight path of these drops. Drops causing irregularity ("a hump on the plot) of the distribution of the liquid over the UIH-nozzle of the nebulizer are deposited on the inner wall of the screen, drain into the lower part of the casing 5 and are sucked through the nozzle 6.

The screen 8 can be moved and fixed relative to the axis of the drive shaft 2, overlapping a larger or smaller - JJ portion of the window flow area. it

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provides regulation of the rate of fluid flow while maintaining the quality of spraying and uniformity of its distribution throughout the width of the spray gun.

In the case when several sprayers work in a single line (for example, on the sprayer bar), the edges 14 of the protective cover 5, which form the window 7, are made with a bevel. In this case, the liquid spray torch created by the wide-flare spray element I intersects in cross section the inclined edges 14 of the casing 5. This gives a gradually decreasing distribution density of the drug at the periphery of the width of each sprayer (Fig. 1). This allows docking of the nozzles with the achievement of complete uniformity of the distribution of the fluid throughout the width of the rod as a whole.

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Claims (3)

1. A LIQUID SPRAY sprayer, including a wide-spray spray element or several sawing elements mounted on the drive shaft and placed in a protective casing with a window towards the surface to be treated and a pipe for draining the liquid, characterized in that, in order to save the drug by distributing it more evenly over the width of the spray gun and improve the quality of spraying, the spray gun is equipped with a screen made in the form of a reflective plate with a curved upper edge bent inside the casing, and aspolozhennym in its window, wherein the edge configuration corresponds to the law of distribution density of the drug atomizer working width without a screen with a maximum height at the middle of the window. 2. Sprayer according to π. 1, characterized in that, in order to regulate the norms of fluid flow while maintaining a constant dispersion of droplets, the screen is made with the possibility of longitudinal movement and fixation relative to the axis of the drive shaft. 3. The sprayer on PP. 1 and 2, characterized in that, in order to increase the uniformity of the distribution of the drug with the simultaneous operation of two or more nebulizers installed in one line, the edges of the protective casing forming a window are made with a bevel relative to the cross section of the liquid spray torch. SU, „. 1371669 1