SU1732898A1 - Liquid atomizer - Google Patents

Abstract

The invention relates to agriculture and is intended to create a finely dispersed medium when irrigating agricultural crops. The purpose of the invention is to improve the quality of spraying both in the supply of liquid and air, and only in the liquid. The atomizer contains a hollow body 1 with channels 13 for supplying a liquid and air, made in the form of two cylindrical mixing chambers 2 and 3. The two output nozzles are made in the form of confusors 6 and 7, cylindrical sections 8 and 9, diffusers 10 and 11. The channels for supplying liquid are tangential to the mixing chambers 2 and 3. A non-return valve 16 is installed in the air inlet channel 13. Its shut-off member 31 is made in the form of an elastic plate installed in the CO С // VI with 00 o 00 24 26 Fig 1

Description

the segmental cavity 32 of the plunger 19. The segmental cavity 32 is connected by channels to the displacement chambers 2 and 3 and the locking bodies 17 and 18 of the nozzles that form the throttles 29 and 30 with the nozzles. When the wind is weak or lack thereof, compressed air and water are supplied under pressure. The fluid and air whirl,

mixing in the mixing chambers 2 and 3, the diffusers 6 and 7, and the diffusers 10 and 11 to a finely dispersed state. In the presence of wind, air under pressure is not supplied to the atomizer, water in the mixing chambers 2 and 3 and the nozzle is twisted, fed to the outlet, mixing with air, forming a fine mixture. 6 Il.

The invention relates to agriculture and is intended to create a finely dispersed medium when irrigating agricultural crops.

The purpose of the invention is to improve the quality of spraying both in the supply of liquid and air, and only in the liquid.

In Fig.1 schematically shows a sprayer, a longitudinal section; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1; figure 4 - section bb In figure 1; figure 5 - section GG in figure 1; on figb - scheme of the sprayer.

The fluid atomizer contains (FIG. 1) a hollow body 1 including cylindrical displacement chambers 2 and 3 of an air-liquid mixture. Nozzles 4 and 5, made in the form of confusors 6 and 7, cylindrical sections 8 and 9, and diffusers 10 and 11, are attached to the housing. In housing 1, channels 12 and 13 are made for supplying fluid and air to pipes 14. and 15, which are permanently installed at the irrigation site or rigidly connected with a flooring machine. Fluid (water) is supplied to the pipe 14 under pressure, and air is supplied to the pipe 15. The output of the channel 12 is made tangentially with respect to the displacement chambers 2 and 3 and is normal to the axis of these chambers.

In the air supply channel, a check valve 16 is installed, and in the mixing chambers 2 and 3, supply stabilization nodes 1y. Supply stabilization units include locking bodies of nozzles made in the form of plungers 17 and 18, distribution block with core 19, springs 20 and 21, stop 22, threaded sleeves 23 and 24, lock nuts 25 and 26. Plunger ends 17 and 18 They are provided with cones 27 and 28, which form an acute angle with forming diffusers 10 and 11 of nozzles 4 and 5. The cylindrical sections 8 and 9 of nozzles form adjustable chokes 29 and 30 with plungers 17 and 18.

The locking member 31 of the check valve 16 is made in the form of an elastic ring plate (FIG. 5) installed in the segmented cavity 32 of the core 19. The locking member can occupy two positions, C and D. The segmented cavity 32 through the channels 33 and 34 (FIG. 1) connected to the chambers 2 and 3 displacement, and through the holes 35 - with the locking bodies 17 and 18. The stop 22 is rigidly fixed in the core of the distribution unit.

The spray works as follows.

In the absence of wind or weak wind, pipe (Fig. 1) is supplied with liquid (water) to the sprayer, and pipe 15, compressed air. Compressed air enters through channel 13, pushes the shut-off member (fig. B) of the check valve 16 out of position C to position D and then through segmented cavity 32 and channels 33 and 34 (Fig. 1) enters the mixing chambers 2 and 3. At the same time, fluid (water) is injected tangentially with respect to the chambers from pipe 14 through channels 12 (FIGS. 2-4), which swirl and mix with the air entering the chambers.

When the mixture of air and fluid moves in confusion 6 and 7, there is a gradual acceleration and further throttling of the liquid droplets in the air flow during its translational and rotational movement due to the aerodynamic forces that occur when the droplets slip in the air flow. With the passage of the air-liquid mixture in the cylindrical sections 8 and 9 of the nozzles, the mixture is further accelerated and crushed to a finely dispersed state. At the exit from diffusers 10 and 11, due to the presence of cones 27 and 28 at the ends of the locking bodies 17 and 18, the air / air mixture forms a plume, exciting at its initial part, where the mixture speed is high, air particles from the boundary layers mix with it, due to this, a stable fine-dispersed state of the mixture entering irrigation is formed. In this case, under the action of the springs 20 and 21, the locking bodies 17 and 18 of the feed stabilization units are pressed against the stop 22.

In the presence of wind, the supply of compressed air to the pipe 15 is turned off and the sprayer works only by supplying fluid (water) under increased pressure to the pipe 14, which, through channels 12 (Figures 2-4), enter the mixing chambers 2 and 3 (Fig. 1), rushes through the confusor-diffuser nozzles 4 and 5 towards the exit, simultaneously making translational and rotational movements. Due to the vortex-like motion, the fluid centers the shut-off bodies 17 and 18 relative to the nozzles and provides a uniform torch formation, which captures air particles from the boundary layers and, mixing with it, forms a fine monodisperse mixture coming under the action of wind on irrigation. The locking member 31 of the check valve 16 is installed in position C (Fig. 5), closing the passage of fluid from the segmental cavity 32 to the passage 13 (Fig. 1) and opening the passage of fluid from this chamber through the opening 35 to the shutoff members 17 and 18. Pressure forces on the ends of these organs move them axially

Aa

12

fig.Z

compressing the springs 20 and 21 and reducing the flow area of the throttles 29 and 30. As the water pressure increases, the flow areas of the throttles 29 and 30 decrease, thus stabilizing the sprayer feed no matter what distance it is from the pressure source, due to which uniform irrigation of farmland with sprayers installed on them is carried out.

Claims (1)

A liquid atomizer comprising a housing with a channel for tangentially supplying a liquid, a vortex chamber, an outlet nozzle, a core with a channel inside the body and a spring-loaded plunger mounted in it with a channel and a conical tip interacting with the nozzle, characterized in that the spraying quality, both when supplying liquid and air, and then to the liquid, the check valve in the form of an elastic plate is mounted in the air supply channel, and the core has a segmented pattern th cavity, wherein the elastic plate is secured, said cavity communicates with the swirl chamber and the plunger channel. B- B g - g 31 Fiel FIG. five inlet diffuser Removable con / ioSou nozzle diffuser