KR20170047739A

KR20170047739A - Sprayer using spray bar

Info

Publication number: KR20170047739A
Application number: KR1020150148188A
Authority: KR
Inventors: 김학수
Original assignee: 김학수
Priority date: 2015-10-23
Filing date: 2015-10-23
Publication date: 2017-05-08

Abstract

The present invention relates to a spraying apparatus using a spray bar. The spraying apparatus using a spray bar according to an embodiment of the present invention includes an upper case (10); a lower case (20); and a plurality of spray bars (30). An inlet (11) into which compressed air flows and an outlet (12) to which the inputted compressed air is discharged are formed in the upper case (10). A plurality of bar coupling holes (22) are formed in the lower case (20). A compressed air guide groove (33), an auxiliary guide groove (34), and a liquid supply hole (35) are formed in the spray bar (30). Therefore, the spraying apparatus according to the present invention can improve spraying efficiency and reduce the waste of liquid.

Description

Sprayer using spray bar [0002]

BACKGROUND OF THE INVENTION Field of the Invention [0002] The present invention relates to a spraying apparatus, and more particularly, to a spraying apparatus using a spray bar in which a liquid to be sprayed is atomized and sprayed using a spray bar having a simple structure.

Generally, it is essential to use water spraying equipment or spraying equipment to spray liquid fertilizer or pesticides to cultivated fields such as fields or greenhouses for growing fruit trees and vegetables.

As an example of a spraying apparatus, "a highly efficient nozzle unit for agricultural sprinklers capable of spraying water at various distances" (Korean Patent Laid-Open Publication No. 10-2012-0108409, Patent Document 1) A nozzle structure in which a groove for guiding a water stream is formed in an obtuse angle is disclosed.

In the method of Patent Document 1, a water stream is injected into the atmosphere through fine grooves formed radially in the end portion in a state where a high pressure is applied to the water supply pipe through a pump or the like, and is supplied to the crop.

The method as disclosed in Patent Document 1 is suitable for increasing the scattering distance because it is a method of sending water at a high pressure.

However, the larger the size of the water particles (water stream), the greater the energy contained in the water particles discharged at high pressures, and the larger energy water particles are supplied to small-sized or fragile crops such as ripe blueberries There is a problem that the crop is dropped or damaged.

In order to overcome such a problem, a "super-fine particle sprayer" (Korean Patent Registration No. 10-1042853, Patent Document 2) discloses a method of injecting an ejector into a blowing pipe outlet for spraying a chemical solution, A chemical solution is sucked into the ejector by a vacuum phenomenon generated in the ejector, and a super-fine particle shape is formed and sprayed.

In Patent Document 2, a low-pressure portion of a vacuum phenomenon is formed in accordance with the movement of compressed air, and a chemical liquid is injected into the ejector from the chemical liquid tank by the low-pressure portion, .

Fig. 1 shows the structure of Patent Document 2. Fig.

The structure of Patent Document 2 shown in FIG. 1 has the effect of dispersing the chemical liquid evenly as in the case of fogging when the chemical liquid is made into ultrafine particles and dispersed in air.

However, there is a problem that the chemical liquid flows on the wall surface of the portion adjacent to the pipe to which the chemical liquid of the ejector is supplied, causing a phenomenon that a part of the chemical liquid partially drips to the bottom.

That is, a part of the chemical solution is fogged to the destination and is dispersed and can not be sprayed, so that it falls on the floor and is wasted.

As another technique, there is disclosed a nozzle structure of a complicated structure such as a "liquid atomizer and its nozzle body" (Korean Patent Registration No. 10-1505309, Patent Document 3), but a complicated structure as in Patent Document 3 is a manufacturing unit And is composed of a plurality of metal members, so that there is a great concern about corrosion, and the structure is complicated, so that troubles are frequent and it is difficult to repair easily in case of failure.

KR 10-2012-0108409 (October 10, 2012) KR 10-1042853 (June 14, 2011) KR 10-1505309 (2015.03.17)

The spray device using the spray bar of the present invention is to solve the problems caused by the conventional technique as described above. The tapered portion is provided in the upper case to which the compressed air is supplied, so that the compressed air to be supplied is further compressed, A lower case connected to the lower part is provided with a simple structure in which a spray bar to which a liquid to be sprayed is supplied is positioned below the tapered part and a spraying device capable of being sprayed as evenly as possible, .

In this configuration, the inner end of the spray bar protrudes to the outlet side of the tapered portion, and the compressed air guide groove is formed so as to pass through the upper and lower portions so as not to interfere with the flow of the compressed air. The auxiliary guide groove is formed so as to mix the flow of the compressed air at the center of the tapered portion and the flow of the pressurized air moving obliquely along the tapered portion, and the flow of the pressurized air which moves against the upper surface of the sprayed bar projected to the outlet side of the tapered portion, So that the discharged liquid is sucked while generating various types of vortices by the auxiliary guide groove having a large size, thereby making it possible to further increase the atomization and dispersion ratio of the liquid.

In addition, the spray bar is protruded toward the outlet of the tapered part, and the liquid to be sprayed through the structure sucked while generating the above-described multiple vortex is prevented from being wasted by flowing through the spray bar or the inner circumferential surface of the lower case.

That is, not only the structure in which the liquid is supplied through the holes on the ejector but also the ejector system as in Patent Document 2, rather than the structure in which the plurality of grooves machined at the end portions are projected toward the center of the outlet of the tapered portion, And to provide a spraying apparatus having a high liquid waste.

In addition, through such a simple structure, the manufacturing cost is lowered and the maintenance is facilitated as compared with the nozzle apparatus of the complicated structure as in Patent Document 3.

In addition, some of the plurality of spray bars are provided in a horizontally elongated shape or an inclined shape so that the change of the flow of the compressed air at the outlet side of the tapered portion is further increased to further complicate intake vortex of the liquid, To be formed.

In addition, the spray bar is formed by spirally joining two cases so that the length of the inner end protruded toward the outlet of the tapered portion can be adjusted and the spiral protrusion is formed on the inner circumferential surface of the tapered portion to further complicate suction vortices, To be able to do so.

According to the present invention, there is provided a spraying apparatus using a spray bar in which an inlet (11) through which compressed air flows and an outlet (12) through which compressed air flows are formed in a tubular shape A cylindrical tubular portion 13 is formed on the inlet 11 side and a tapered portion 13 whose inner and outer diameters are connected to the cylindrical portion 13 and gradually decreased toward the outlet 12 side is formed on the outlet 12 side. And a stepped portion 15 protruding outward is formed in the middle of the cylindrical portion 13. An upper portion 10 of the stepped portion 15 is connected to an air supply pipe for supplying compressed air, Wow;

The lower end of the step portion 15 of the upper case 10 is inserted into the upper portion of the upper case 10 while the upper end thereof is in contact with the step portion 14 of the upper case 10, A plurality of bar fastening holes 22 are formed radially with respect to the center of the tapered portion 14 in a state of being coupled with the upper case 10, A lower case 20 in which a lower case 23 is formed;

The inner end portion 32 is engaged with the upper end of the upper case 31 so that the upper end of the upper end of the upper end of the upper end portion of the upper case 31 is connected to the lower end The inner end portion 32 is projected on the plane from the inner circumferential surface of the outlet 12 of the upper case 10 in the plan view and the inner end portion 32 is projected from the upper portion to the lower portion, The compressed air guide groove 33 is formed on both sides of the compressed air guide groove 33 and the upper and lower portions of the compressed air guide groove 33 are formed inside the compressed air guide groove 33 A liquid supply hole 35 having a smaller inner diameter than the auxiliary guide groove 34 from the outer end 31 to the auxiliary guide groove 34 is formed in a block shape And a plurality of spray bars (30).

In this configuration, any one of the plurality of spray bars 30 is characterized in that the side wall portion 33a is tilted or fastened to the lower case 20 in a nested form.

The spray bar 30 includes a first case 36 and a second case 37 threadedly engaged with the first case 36. The spray bar 30 has an inner end protruding toward the center of the outlet 12 of the tapered portion 14 32 can be adjusted in length.

In addition, a spiral protrusion 14a is formed on the inner circumferential surface of the tapered portion 14.

According to the present invention, the upper case to which the compressed air is supplied is formed with a tapered portion so that the compressed air to be supplied is further compressed. In addition, a lower case connected to the lower portion of the upper case is provided with a spray bar, A spraying device is provided in which a liquid such as a chemical liquid can be sprayed as evenly as possible in a state of being atomized.

In this configuration, the inner end of the spray bar protrudes to the outlet side of the tapered portion, and the compressed air guide groove is formed so as to pass through the upper and lower portions so as not to interfere with the flow of the compressed air. The auxiliary guide groove is formed so as to mix the flow of the compressed air at the center of the tapered portion and the flow of the pressurized air moving obliquely along the tapered portion, and the flow of the pressurized air which moves against the upper surface of the sprayed bar projected to the outlet side of the tapered portion, It is possible to increase the atomization and dispersion ratio of the liquid by causing the discharged liquid to suck while causing various types of vortices by the large auxiliary guide groove.

In addition, the spray bar protrudes toward the outlet of the tapered portion, and the liquid to be sprayed through the structure sucked while causing the above-described multiple eddy currents to flow through the spray bar or the inner circumferential surface of the lower case can be prevented.

That is, not only the structure in which the liquid is supplied through the holes on the ejector but also the ejector system as in Patent Document 2, rather than the structure in which the plurality of grooves machined at the end portions are projected toward the center of the outlet of the tapered portion, This high and low-waste spraying device is provided.

In addition, through such a simple structure, the manufacturing cost can be lowered and maintenance can be facilitated as compared with the nozzle apparatus having a complicated structure as in Patent Document 3.

In addition, some of the plurality of spray bars are provided in a horizontally elongated shape or an inclined shape so that the change of the flow of the compressed air at the outlet side of the tapered portion is further increased to further complicate intake vortex of the liquid, Can be formed.

In addition, the spray bar is formed by spirally joining two cases so that the length of the inner end protruded toward the outlet of the tapered portion can be adjusted and the spiral protrusion is formed on the inner circumferential surface of the tapered portion to further complicate suction vortices, .

1 is a conceptual view showing an example of a conventional atomizing apparatus.
2 is a partially cut exploded perspective view showing a spray device using a spray bar of the present invention.
3 is a partially cutaway perspective view showing the engaged state of Fig.
Fig. 4 is a cross-sectional view showing the side and flat cross-sectional views of Figs.
5 is an operational view showing an example of the flow of liquid and compressed air at the inner end of the spray bar in the present invention.
6 is a partially cutaway perspective view showing still another embodiment of the atomizing apparatus using the spray bar of the present invention.
7 to 9 are photographs showing a spray device using the spray bar of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a spraying apparatus using a spray bar according to the present invention will be described in detail with reference to the accompanying drawings.

The spraying apparatus using the spray bar of the present invention takes a simple structure mainly composed of the upper case 10, the lower case 20 and the spray bar 30 as shown in Figs.

As shown in FIG. 2, the upper case 10 has an inlet 11 through which compressed air flows in as a whole, and an outlet 12 through which the introduced compressed air is discharged.

A cylindrical tubular portion 13 is formed on the side of the inlet 11 and a tapered portion 13 which is connected to the cylindrical portion 13 and whose inner and outer diameters gradually decrease toward the outlet 12 side is formed on the outlet 12 side. A portion 14 is formed.

In this configuration, a step portion 15 protruding outward is formed in the middle of the cylindrical portion 13.

The stepped portion 15 is structured such that the upper case 10 is seated on the lower case 20.

On the other hand, the cylindrical portion 13 is fastened to the air supply pipe not shown on the upper side with respect to the step portion 15.

The figure shows an example in which a first screw thread 16 screwed to an unillustrated air supply pipe for supply of compressed air is formed on the outer peripheral surface of the inlet 11 side of the cylindrical portion 13.

A second screw thread 17 for engagement with the lower case 20 is formed on the outer circumferential surface of the cylindrical portion 13 on the side of the outlet 12 on the basis of the step portion 15.

The air supply line can be connected to various compressed air generating devices, preferably a ring blower.

The ring blower has a lower air flow than fan blowers but is suitable for high wind pressure conditions.

That is, in the case of the atomizing apparatus of the present invention, since the supply of the liquid is performed through the suction pressure due to the generation of the vacuum, not the external power, the wind pressure of the compressed air is increased so that the suction of the liquid can be performed smoothly.

Meanwhile, the end wall portion of the tapered portion 14 is formed to be in the horizontal direction as shown in FIG. 4, and it is preferable that the end portion has a pointed shape.

This is because, when the pressure applied to the compressed air is released while passing through the outlet 12, the pressure release is made to have a larger area so that dispersion can be more actively performed. Further, So that the liquid can be sucked in easily.

The lower case 20 is inserted into the upper portion of the upper case 10 with the lower end of the step portion 15 of the upper case 10 inserted into the upper case 10 while the upper end thereof is in contact with the step portion 14 of the upper case 10.

Specifically, as shown in FIGS. 2 and 3, a third thread 21 is screwed on the second thread 17 of the upper case 10 on the upper inner circumferential surface.

A plurality of bar fastening holes 22 are formed in the lower portion of the third screw thread 21 in a radial direction with respect to the center of the lower threaded portion 14 located below the end of the tapered portion 14 of the upper case 10, A liquid mixing space 23 is formed below the tapered portion 14 in a state of being coupled with the upper case 10 as shown in FIG.

The spray bar 30 is an essential component of the present invention and is inserted into the bar fastening hole 22 of the lower case 20 so that the middle part thereof is fitted.

The spray bar 30 may be fastened by a simple striking pressure method or a screw thread, which is not shown, and may be fastened with a washer, a nut, or the like.

The outer end 31 of the spray bar 30 is coupled to an undepicted liquid supply to which the liquid to be sprayed is supplied and the inner end 32 is located inside the upper case 10.

At this time, the inner end portion 32 is protruded toward the center of the inner circumferential surface of the outlet 12 of the upper case 10 in a plan view as shown in the enlarged portion of FIG. 3 and the right side of FIG.

The inner end portion 32 is formed with a compressed air guide groove 33 having a shape penetrating from the upper portion to the lower portion at the center on the plane and thereby the side wall portion 33a is formed on both sides of the compressed air guide groove 33 .

In addition, the spray bar 30 has an auxiliary guide groove 34 formed in an upper portion and a lower portion of the compressed air guide groove 33 so as to block the inside of the compressed air guide groove 33. The auxiliary guide groove 34 extends from the outer end 31, 34) having a smaller inner diameter than the auxiliary guide groove (34).

In any of the above-described configurations, any one of the plurality of spray bars 30 may be formed such that the side wall portion 33a is inclined or may be fastened to the lower case 20 in a horizontally divided shape as shown in FIG. 6 have.

4, the spray bar 30 includes a first case 36 and a second case 37 that is threadedly coupled to the first case 36, So that the length of the inner end portion 32 protruding toward the inner side can be adjusted.

In addition, a spiral protrusion 14a may be formed on the inner circumferential surface of the tapered portion 14 as shown in FIG.

An operation example of the atomizing apparatus using the spray bar of the present invention constructed as above will be described.

As shown in FIGS. 4 and 5, the compressed air introduced into the inlet 11 of the upper case 10 passes through the cylindrical portion 13 and moves through the tapered portion 14 while increasing pressure or flow rate.

The flow of the air moving obliquely along the inner peripheral surface of the tapered portion 14 and the flow of the air moving vertically downward from the center side are obtained.

At this time, as the liquid passes through the outlet (14), it suddenly reaches a space wider than the upper space in the liquid mixing space (23), and the pressure is released and dispersed.

The plurality of spray bars 30 protrude toward the center of the outlet port 14 in the vicinity of the outlet port 14 so that the pressurized or accelerated compressed air moves along the tapered portion 14, And guided along the compressed air guide groove 33 of the inner end portion 32 to be moved.

In this state, since the high-speed high-pressure compressed air moves along the compressed air guide groove 33, a suction pressure near the vacuum is applied to the liquid supply hole 35 so that the liquid on the liquid supply hole 35 flows into the compressed air guide groove 33).

4 and 5, since the auxiliary guide groove 34 is formed at a tip end side of the liquid supply hole 55 with a larger area than the liquid supply hole 55 and the upper and lower portions are clogged, Different forms of suction vortices are formed in the upper, middle, and lower portions of the guide groove 34. [

This is because the compressed air has a flow flowing in an oblique direction relatively to the center of the lower portion, so that a negative pressure applied to the rear space occurs differently depending on the upper, middle, and lower portions of the auxiliary guide groove 34, The liquid discharged to the upper side of the liquid supply hole 55 has a flow toward the upper space of the auxiliary guide groove 34, The liquid discharged downward has a flow directed obliquely downward as shown in the drawing, and the liquid discharged downward has a flow in which the vortex is formed while the compressed air is dispersed in a wider width as compared with the upper side of the auxiliary guide groove 34 As shown in FIG.

That is, the suction pressure is generated in the liquid supply hole 55. However, in addition to the structure in which the inner end portion 32 of the spray bar 30 protrudes more toward the center than the outlet 12, Because the grooves 33 and the auxiliary guide grooves 34 are formed, not only the simple suction flow but also the vortex are formed together to minimize the unidirectionality of the liquid.

As a result, compressed air passes through the outlet 12 and is dispersed in the liquid-phase mixing space 23 to be dispersed evenly in a state where the particles are minimized together with the compressed air.

That is, the flow of the compressed air moving through the upper case 10 passes through the spray bar 30, and the suction pressure caused by the vacuum state is further misted while being further vortexed, It is sprayed in a state of ultrafine particles.

This configuration is such that, as in Patent Document 2, the liquid-passing portion is coupled to the main body in one body, and the liquid-liquid dispersing effect can be enhanced as compared with the structure in which the structure of the chemical-liquid supplying portion is a general perforated hole type. Maintenance, and repair in a manner that facilitates connection and separation of the case 10 and the lower case 20, tightening of the spray bar 30, and angle adjustment.

In addition, when any one of the plurality of spray bars 30 is tilted to the side wall portion 33a or is fastened to the lower case 20 in a horizontally nested shape as shown in Fig. 6, The spray bars 30 are irregularly arranged in a plane without being symmetrical to each other, thereby enhancing the dispersion effect of the liquid.

At this time, it is more preferable to take an inclined shape rather than a horizontally completely formed shape as shown in the drawing.

This is because, in the case of the horizontally shaped shape, the flow of the compressed air moving on the tapered portion 14 at the horizontally shaped side becomes the direction toward the liquid supply hole 55 of the opposite side of the spray bar 30, It is more preferable to be connected in an inclined shape in a misaligned direction in which it can be avoided.

4, the spray bar 30 includes a first case 36 and a second case 37 that is threadedly coupled to the first case 36, So that the suction pressure can be controlled by adjusting the length of the protruding portion in accordance with the physical characteristics such as the pressure of the compressed air, the flow velocity, the viscosity of the liquid, etc. In this case, can do.

4, the inner upper end of the compressed air guide groove 33 of the spray bar 30 is positioned at the same position as the extended line of the inclined inner peripheral surface of the tapered portion 14, It is preferable that the flow of the compressed air moving obliquely along the guide grooves 33 and 14 is smoothly introduced into the compressed air guide groove 33.

6, when the spiral protrusion 14a is formed on the inner circumferential surface of the tapered portion 14, the flow of the compressed air moving on the spiral bar 30 and the spiral protrusion 14a, The combined suction vortexes shown in the enlarged portions of FIGS. 4 and 5 can be smoothly formed on the inclined spray bar 30, so that the three-dimensional three-dimensional suction vortex can be formed.

The spray device using the spray bar according to the present invention can be used singly or in a plurality of ways depending on the flow rate of the ring blower connected thereto and can be used in various fields such as fruit trees, vegetables, house cultivars, pigs, Spraying, disinfection, disinfection, water supply, drug supply, etc., and may be connected in a variety of ways such as a sprinkler system or a connection to a sprayer.

10: upper case 11: inlet
12: outlet 13:
14: tapered portion 14a: projection
15: step portion 16: first thread portion
17: second screw thread 20: lower case
21: third thread 22: bar tightening hole
23: Liquid mixing space 30: Spray bar
31: outer end 32: inner end
33: Compressed air guide groove 33a:
34: auxiliary guide groove 35: liquid supply hole
36: one side case 37: the other side case

Claims

An inlet 11 into which the compressed air flows and an outlet 12 through which the introduced compressed air is discharged are formed in upper and lower portions respectively and a cylindrical tube portion 13 is formed on the inlet 11 side And a tapered portion 14 connected to the cylindrical portion 13 and having an inner diameter and an outer diameter gradually reduced in the direction of the outlet 12 is formed on the outlet 12 side and protruded outward in the middle of the cylindrical portion 13 And an upper case 10 which is fastened to an upper portion of the step portion 15 with an air supply pipe for supplying compressed air;
The lower end of the step portion 15 of the upper case 10 is inserted into the upper portion of the upper case 10 while the upper end thereof is in contact with the step portion 14 of the upper case 10, A plurality of bar fastening holes 22 are formed radially with respect to the center of the tapered portion 14 in a state of being coupled with the upper case 10, A lower case 20 in which a lower case 23 is formed;
The inner end portion 32 is engaged with the upper end of the upper case 31 so that the upper end of the upper end of the upper end of the upper end portion of the upper case 31 is connected to the lower end The inner end portion 32 is projected on the plane from the inner circumferential surface of the outlet 12 of the upper case 10 in the plan view and the inner end portion 32 is projected from the upper portion to the lower portion in the center on the plane, The compressed air guide groove 33 is formed on both sides of the compressed air guide groove 33 and the upper and lower portions of the compressed air guide groove 33 are formed inside the compressed air guide groove 33 A liquid supply hole 35 having a smaller inner diameter than the auxiliary guide groove 34 from the outer end 31 to the auxiliary guide groove 34 is formed in a block shape And a plurality of spray bars (30)
Spray device using spray bar.

The method according to claim 1,
Characterized in that any one of the plurality of spray bars (30) is fastened to the lower case (20) in a shape in which the side wall part (33a)
Spray device using spray bar.

3. The method of claim 2,
The spray bar (30)
And the other case 37 is screwed to the one case 36 so that the length of the inner end 32 protruding toward the center of the outlet 12 of the tapered portion 14 can be adjusted &Lt; / RTI >
Spray device using spray bar.

The method of claim 3,
Characterized in that a spiral protrusion (14a) is formed on the inner circumferential surface of the tapered portion (14)
Spray device using spray bar.