SU733565A1 - Liquid sprayer - Google Patents

Description

(54) FLUID SPRAYER

one

The invention relates to agricultural machinery, in particular to centrifugal liquid atomizers, used, for example, in seed dressing. The invention can be used in other areas of the national economy, where a uniform torch of liquid is required, wide in height.

Centrifugal fluid dispensers are known, which are rapidly rotating mechanisms in the form of discs, cones, cups and cylinders and spray the fluid due to centrifugal forces tU. During operation, the liquid enters the center of the rotating atomizer, due to friction, acquires a rotational motion and under the action of centrifugal forces spreads a thin film to its periphery, where the stack from the edges of the atomizer becomes unstable and disintegrates into droplets. Obtained when etsm spray torch narrow in height, which prevents its use.

Another liquid sprayer is also known, which consists of two or more conical bowls, axially mounted one below the other on a rotating cylinder, in the side walls of which

there are feed channels connecting it to the bowls. The inlets of the feed channels are made in rows on the side walls of the hollow cylinder on

5 height corresponding to the installation height of each bowl 2.

By installing several bowls one above the other, the required height of the spray jet is achieved.

10 However, the distribution of the droplets during the operation of the known sprayer over the height of the plume is uneven due to the uneven distribution of the fluid flows between the cups; in practice, it turns out that a larger amount of liquid is cut into the lower bowl, and a lower amount usually gets to the upper bowl, especially at low flow rates,

The purpose of the invention is to increase the uniformity of the distribution of liquid droplets while simultaneously increasing the height of the spray cone.

This is achieved by the fact that the input

25 holes in the supply channels are flush; the inlets are made at the level of any bowl, and the conical bowls are made with different angles of inclination forming a conical

30 surface.

FIG. 1 shows a fluid sprayer, general view; in fig. 2, 3 sweepings of the side surface of the hollow cylinder, which show the trajectories of the fluid flow during the rotation of the sprayer in different directions

The liquid sprayer consists of several conical bowls 1, axially mounted one above the other on the same axis; hollow cylinder 2, located at the level of the lower bowl and having supply channels 3, made p its walls.

The inlets 4 of the supply channels 3 are located at the same level on the side walls of the cylinder 2, and the outlets 5 of the channels are at different levels against the respective bowls 1 made with different angles of inclination of the generatrix of the conical surface.

If all feed channels are numbered, then each of the first, fourth, seventh channels goes to the lower bowl, the second, fifth, eighth, etc. on the middle bowl; third, sixth, ninth - etc. - to the top. In the event that the bowls are smaller or larger, then the multiplicity of the number of channels must be corresponding to that number of bowls. For example, with two spray bowls, every second channel should go to the upper bowl, and the rest to the lower one.

The spray works as follows.

 fed to the bottom of the rotating cylinder 2 and under the action of centrifugal forces it spreads along spiral paths on its side walls. Since for each bowl 1 there are the same number of outlet openings 5 of the supply channels 3, the liquid is distributed evenly throughout the bowls 1, ensuring

high uniformity of droplet distribution along the height of the flare.

When changing the sprayer operating modes, the slope of the fluid flow paths (Fig. 2) changes, and the distribution conditions remain unchanged. 5 Uniform distribution of droplets over the height of the torch improves the quality of processing, for example, pickling, reduces the flow rate of the liquid.

Claims (3)

1. A liquid sprayer, including conical bowls, axially mounted one below the other on a rotating hollow cylinder, in the side walls of which there are feed channels with inlet and outlet openings, the last of which are arranged in rows at different height levels and against conical bowls, This is due to the fact that, in order to increase the uniform distribution of liquid droplets over the height of the spray cone, the inlets of the feed channels are flush. 2. A liquid sprayer according to Claim 1, characterized in that the inlets of the supply channels are made at the level of any spray bowl. D 3. The liquid sprayer according to claim 2, characterized in that the conical bowls are made with different angles of inclination of the generatrix of the conical surface. 5 Sources of information taken into account in the examination 1, Pansy D.G. and others. I sprayed the device in chemical industry. M., Himi, 1975, p. 1540 166. 2. The patent of Hungary No. 157070, cl. And 01 C 1/08, 1970 (prototype).