RU2305603C1 - Sprinkling nozzle - Google Patents

Abstract

FIELD: processes and equipment for watering by means of finely dispersed and drop sprinkling, possibly mobile plants for sprinkling with drop size admissible for pouring on wide range of agricultural plants.

SUBSTANCE: sprinkling nozzle includes housing mounted to water supply pipeline; deflector secured to strut and made in the form of concave cup turned to side of housing. Said cup includes blade type contour embracing housing and having equal-curvature blades. Strut includes threaded rod and joined with it body of revolution of single-cavity hyperboloid embraced by turns of auger whose diameter is equal to inner diameter of nozzle housing. Threaded rod is fixed in cross piece by means of lock bolts. On lower part of said cup notches are formed and indicating arrow is applied on housing of nozzle.

EFFECT: possibility for selecting optimal parameters of sprinkling, enhanced operational efficiency, simplified design of nozzle.

2 dwg

Description

The invention relates to techniques for irrigation with fine and drip irrigation and can be used in mobile installations for producing rain with droplet sizes acceptable for irrigation of a wide range of cultivated crops.

Known nozzles of the sprinkler apparatus, comprising a housing, a deflector fixed to the rack and a nozzle with a central hole, in which, in order to enable the regulation of rain intensity during irrigation, the nozzle is made of a shape memory material with a reduction of the central hole from a larger diameter to a smaller one when heated moreover, the rack is made of the same material as the nozzle, with a mass equal to the mass of the nozzle; it is equipped with a power source and adjustable resistance, while the stand and nozzle are electrically connected and connected to a power source through adjustable resistance (SU, copyright certificate No. 1616711 A1, M.cl. ⁵ V05V 1/18, 1/26. Sprinkler nozzles unit / VB Kovshevatsky. Applicant - NPO YUGmelioration. Claimed - 01/31/1989 Published on 12/30/1990)

The disadvantages of the described nozzle include a small range of changes in the size of the raindrops and the complexity of the design. To change the position of the deflector post, an entire electrical network with communications and power supplies is required.

Also known is a sprinkler baffle nozzle comprising a rack mounted housing connecting the strut support with a deflector mounted on it and housed with a rotatable fluid flow regulator, in which, with the aim of increasing the reliability of the nozzle, the quality of the spray and expanding technological capabilities, the fluid flow regulator made in the form of a cylindrical liner with diametrically located channels of different diameters, and the deflector is made with a central channel and is equipped with a in the latter with the possibility of axial movement by the core (SU, copyright certificate No. 923635, M.cl. ³ V05V 1/18, 1/26, 1/30. Sprinkler deflector nozzle / LB Nodel. Applicant - Volzhsky Research Institute hydraulic engineering and land reclamation, declared on 05.27.1980, published on 04.30.1982).

During irrigation by sprinkling with two-console sprinkler units of the DDA-100VX family (Volgograd Plant of Irrigation Equipment OJSC), the irrigation water is drawn by a floating valve from an open irrigation system. Together with water from the canal, both sediment and mineral suspension are sucked in. During the operation of the described nozzle, the radial channels of small diameter are first of all clogged.

Each nozzle also requires careful individual adjustment when supplying irrigation water under operating pressure. To clean the radial channels, a complete disassembly of the nozzle is required. All this reduces the technological reliability of the sprinkler.

A nozzle for a sprinkler assembly is known, comprising a body mounted by means of a nipple of a water supply pipe, a deflector fixed to the column and a nozzle with a central hole, the deflector made in the form of a concave bowl facing the nozzle with a bulge in its middle part and a threaded hole combined with the axis of symmetry, divided stiffeners on compartments and undercut of the curved surface of the bowl between its peripheral annular edge and convexity, each of the compartments has A variable section, with the possibility of stepless displacement of the deflector and the nozzle, are connected by means of a stand (RU, patent No. 2173584 C1, M.cl. ⁷ B05B 1/18, 1/26. Nozzles of the sprinkler unit / V.G. Abezin, V.V. .Karpunin, V.V. Karpunin, V.A.Drannikov, A.M.Saldaev.Oclaimed on 10/04/2000; Published on 09/20/2001 Bul. No. 26).

The disadvantages of the nozzle include design complexity, low reliability, lack of the ability to obtain fine sprinkling.

This design is accepted as the closest analogue.

The essence of the claimed invention is as follows.

The problem to which the invention is directed is the creation of a universal nozzle for sprinkler machines, providing specified costs and fine sprinkling.

The technical result is the ability to select the optimal rain parameters, increasing the reliability, simplifying the design.

The specified technical result is achieved by the fact that in a known sprinkler nozzle including a body mounted on a water supply pipe, a deflector mounted on a rack, according to the invention, the deflector is made in the form of a concave bowl facing the body with a blade contour covering the body and having blades of equal curvature, while the rack includes a threaded rod and the associated body of revolution of a single-cavity hyperboloid, covered by turns of a screw, the diameter of which is equal to the inner diameter of the body of us order, on the bottom of the bowl dividing baffle applied to determine the flow rate through the nozzles and on the outer surface of the nozzle body is made directional arrow to fix the rack with a deflector provided at a predetermined position locking bolts mounted in the cross bar.

The analysis of the prior art by the applicant, including a search by patent and scientific and technical sources of information and identification of sources containing information about analogues of the claimed invention, allowed to establish that the applicant did not find an analogue characterized by features identical to all the essential features of the claimed invention.

Therefore, the claimed invention meets the requirement of "Novelty" under existing law.

The invention is illustrated by drawings.

Figure 1 presents the sprinkler nozzle, a diametrical section.

Figure 2 is the same, top view.

Information confirming the possibility of implementing the claimed technical solution is as follows.

The sprinkler nozzle contains a housing 1 mounted on a water supply pipe, in the inner cavity of which a rack 2 is coaxially placed in the form of a body of revolution of a single-cavity hyperboloid. The rack 2 is fixed in the cross member 3 using a threaded rod 4.

The rotation body 2 is covered by turns of the screw 5, the diameter of which is equal to the inner diameter of the housing 1. In the lower part, the housing 1 is mated with a rotation body with a rounded chamfer 6. The lower part of the rotation body 2 is made in the form of a concave bowl 7, along the perimeter of which blades 8 of equal curvature are provided, moreover, the direction of curvature is opposite to the curvature of the screw 5.

The rod 4 is fixed in the cross member 3 using the locking bolts 9.

The nozzle is mounted on the water supply pipe using a thread 10. To adjust the gap h between the end of the housing 1 and the plane of the bowl 7, a recess 11 is provided for a screwdriver. On the outer lower surface of the bowl 7 caused by the division 12, showing the flow rate through the nozzles. To set a given flow rate, mark 13 is used on the outer surface of the nozzle body. Sprinkler nozzles works as follows. Before starting work, a predetermined flow rate is established, for which the necessary division 12 is aligned with the mark 13. The predetermined position of the bowl 7 is fixed with locking bolts 9. The predetermined flow rate of the nozzle is ensured by the necessary clearance “h”. When water is supplied to the internal cavity of the nozzle, the flow behind the cross member 3 enters the turns of the screw 5 and acquires a rotational movement. At the same time, with the translational movement of the flow, its live section ω decreases, since the strut 2 is made in the form of a hyperboloid of revolution.

According to the flow equation Q = ωV, where V is the flow velocity, with a decrease in the living section, the flow velocity increases.

поступает на лопасти 8, перемещается по их криволинейной поверхности и по криволинейной поверхности чаши 7 отбрасывается под некоторым углом к корпусу 1.When the flow exits through the gap h, it will have a maximum speed, while a rotating flow with a high velocity head

enters the blades 8, moves along their curved surface and on the curved surface of the bowl 7 is discarded at an angle to the housing 1.

In this case, the flow is destroyed into fine particles, which, under the action of the force of weight, settle on the irrigated surface of the field.

The use of such a sprinkler nozzle provides uniform soil moisture, prevents the destruction of its structure and increases productivity.

Sprinkler nozzles are simple in design, reliable in operation, and do not cause difficulties in operation and maintenance.

Claims (1)

A sprinkler nozzle comprising a body mounted to a water supply pipe, a deflector mounted on a stand, characterized in that the deflector is made in the form of a concave bowl facing the body with a blade contour covering the body and having vanes of equal curvature, while the stand includes a threaded rod and mating with the rotational body of a one-sheeted hyperboloid covered by turns of the screw, the diameter of which is equal to the internal diameter of the nozzle body, the threaded rod is fixed in the cross member with a lock bolts on the bottom of the cup the baffle dividing applied, and on the housing attachment directional arrow.

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