RU2336688C1 - Laboratory-field water sprinkler - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention refers to agriculture. Laboratory-field water sprinkler includes water tank, driven pump, water lines with gates and sprinkler frame consisting of sprinkler assemblies. Frame includes scaled vertical bar on which movable and fixable water line bleeder with drainpipe is established. Each sprinkler assembly is executed in form of T-joint and consists of series washer with jet, nipple, vertical thick flexible tube, thin flexible tube bundle and bushing mounted on T-joint. Thin flexible tubes are tightly established by one ends in bushing and are of identical length. By the second ends tubes are fixed in horizontal panels.

EFFECT: provided uniform and stable water distribution within sprinkling area.

4 cl, 3 dwg

Description

The invention relates to agriculture and can be used to reproduce rain in laboratory and field conditions.

A device for simulating natural rain, comprising a sealed container with a microporous surface covered with drops of a hydrophobic substance (SU 1069714 A1, 01/30/1984).

The disadvantage of this device is the formation of droplets of different sizes, which leads to heterogeneity of the created rain.

Known laboratory sprinkler installation, consisting of sections with a vibrating unit and pressure pipelines with nozzles equipped with flexible tubes and adapters (SU 1648288 A1, 05/15/1991).

The disadvantage of this device is the low uniformity of the distribution of rain over the irrigation area. Water entering through the nozzles to the elastic tubes unevenly fills them. Those tubes that are filled first begin to suck out water from the nozzle, creating a vacuum in it that prevents the remaining tubes from filling, which, in turn, leads to a large uneven flow of water between them.

The closest technical solution to the claimed object is a laboratory field irrigation system, consisting of a tank, engine, centrifugal pump, water pipes, valves, pressure gauges, a water distributor, a frame, hydraulic accumulators and nozzles of sprinklers. Water is sprayed by the rotating nozzles of the sprinklers. However, it is known that any rotating sprinklers form a cone of liquid droplets, which leads to a poor quality of water distribution for irrigation of the surface (SU 1748742 A1, 07.23.1992).

The technical result achieved by the implementation of this invention is to increase the uniformity and stability of the distribution of rain over the irrigation area.

The specified technical result is achieved by the fact that in a laboratory-field sprinkler installation, including a water tank, a pump with a drive, water conduits with valves and a frame with a sprinkler consisting of sprinkler units, according to the invention, a vertical rod with a scale is mounted on the frame, with the ability to move and fix the overflow device of the water conduit with a drainage tube, and each sprinkler unit is made in the form of a tee and consists of washers with a nozzle, a nipple, sequentially mounted on the tee Vertical, thick flexible tubing bundle of thin flexible tubes and sleeve, in which one end hermetically mounted thin flexible tube made of equal length and fixed at second ends of the horizontal panels.

A suspension bracket is fixed to the frame with ties to hang the sprinkler in a horizontal position.

The level of the outlet of the flexible tubes is located above their inlet.

A fine filter is installed between the pump and the water pipe.

The filter ensures the reliability of the installation when using water from natural sources. The sprinkler is made of a supply conduit with tees fixed to the frame, a bypass valve and a water conduit, horizontal panels, couplers, a suspension bracket, a vertical rod with a scale, an overflow device with a clamp, a drain pipe, a return conduit and sprinkler units. The presence of an overflow device in the installation provides stable pressure in the system, the value of which is changed by moving the overflow device after loosening the lock in the vertical direction along the scale of the vertical rod. The pressure in the system proportionally affects the speed of the fluid and the intensity of the rain. The sprinkler assembly consists of washers with a nozzle, a nipple, a vertical thick flexible tube, clamps, a sleeve and thin flexible tubes successively mounted on a tee. The presence of nozzles in the sprinkler units ensures their stable operation in a convenient pressure range for use. Nipples and vertical thick flexible tubes provide convenience when servicing the sprinkler units, and the internal cavities created by them and the movement of water from the bottom up contribute to the slow movement of water and uniform filling of thin flexible tubes with it. This provides increased irrigation stability. Thin flexible tubes with an adhesive joint are fixed at one end in the vertical sleeve and the other at the vertical holes of the horizontal panel, the output ends of the thin flexible pipes being fixed in horizontal panels higher than the ends fixed in the sleeve. This provides a constant overpressure at the entrance to thin flexible tubes and the absence of their influence on each other. A drainage tube is made on the overflow device, connecting its internal cavity with the atmosphere, which prevents the suction of water through the overflow device from the supply sprinkler conduit.

Figure 1 shows a diagram of the entire sprinkler; figure 2 - diagram of the sprinkler; figure 3 is an enlarged section of the sprinkler node.

Laboratory field installation (figure 1) consists of a tank 1, engine 2, pump 3, filter 4, valve 5, pressure conduit 6 and sprinkler (figure 2). The sprinkler is made of a supply conduit 8 mounted on a frame 7 with tees 9, a bypass valve 10 and a conduit 11, horizontal panels 12, couplers 13, a suspension bracket 14, a vertical rod with a scale 15, an overflow device 16 with a retainer 17, a drain pipe 18, a return water conduit 19 and sprinkler units (figure 3). The sprinkler assembly consists of washers 20 sequentially mounted on the tee 9 with the nozzle 21, the nipple 22, the vertical thick flexible tube 23, the clamps 24, the sleeve 25 and the thin flexible tubes 26. The hanging bracket 14 (Fig. 1) serves to hang the sprinkler, and the couplers 13 - to give it a horizontal position. The overflow device 16 is arranged to move it vertically along the rod with a scale 15 and fix it with a latch 17. Thin flexible tubes 26 are glued with one end fixed in the vertical sleeve 25, and the other in the vertical holes of the horizontal panel 12, and the output ends are thin flexible the tubes are fixed in horizontal panels 12 higher than the ends fixed in the sleeve 25. On the overflow device 16, a drainage tube 18 is made connecting its internal cavity with the atmosphere.

Laboratory field sprinkler works as follows. When engine 2 is turned on, pump 3 delivers water from tank 1 through filter 4, valve 5, pressure conduit 6 to supply conduit 8 with tees 9 mounted on frame 7. Water displaces air from the conduits and through nozzles 21 secured in washers 20 enters first, into the inner cavity of the nipples 22, and then into the vertical thick flexible tubes 23 fixed to the nipples 22 with clamps 24. Then the water reaches the lower edge of the bushings 25 and enters the thin flexible tubes 26. Through it, it is delivered to the entire width of the sprinkler and forms raindrops on the ends fixed in the sections of the horizontal panels 12. Excess water through the bypass valve 10 and the conduit 11 rises to the level of the overflow device 16, and then its excess is discharged into the tank 1 through the return conduit 19. A drain pipe 18, mounted above the overflow device 16, if necessary supplies air to it, which prevents the system from sucking water through the return conduit 19. The rain intensity changes in the installation by moving the overflow device 16 along a vertical rod with a scale of 15 after loosening the lock 17 or by overlapping the bypass valve 10. The complete overlapping of the water flow-pass valve 10 is used for the initial setting starts, when the system is pressurized, which contributes to more rapid air displacement and incorporation of thin flexible tubes in operation. For stable operation of the installation, valve 5 passes a small amount of water through the overflow device 16 and is discharged through the return pipe 19 into the container 1, while not allowing the water to overflow through the drain pipe 18. For operation, the sprinkler is raised to the required height by the hanging bracket 14, while horizontal position is achieved by lengthening or shortening the screed 13. Clamps 24 fix the flexible tubes and conduits 11, 19, 23 and prevent the depressurization of the system.

Filter 4 allows you to increase the reliability during operation of the installation with water from untreated natural sources.

The vertical arrangement of the sprinkler unit and the movement of water along it from the bottom up ensures slow filling of thick flexible tube 23 with equal flow rate into thin flexible tubes 26 without turbulence. This evens out the water flows passing through thin flexible tubes 26 and increases the irrigation uniformity. This is also facilitated by the equal length of all thin flexible tubes 26 and the excess in height of their outlet openings over the inlet. Otherwise, when the outlet openings are lower than the inlet, the water entering the thin flexible tubes 26 creates a vacuum that prevents them from working the same.

The operation of this device is possible without jets 21. Then the height of the water column should be within 5 ÷ 10 cm, and it is difficult to achieve sprinkling stability. In case of malfunction of the thin flexible tubes 26, it is possible to clean them after loosening the clamps 24 and removing the sleeve 25 from the thick flexible tube 23. It is also possible to replace the entire panel 12 with thin flexible tubes 26 with the same of the spare ones. The panels 12 with the flexible thin tubes 26 fixed in them in the sprinkler are interchangeable.

Claims (4)

1. Laboratory field irrigation system, including a water tank, a pump with a drive, water conduits with valves and a frame with a sprinkler consisting of sprinkler units, characterized in that a vertical rod with a scale is mounted on the frame, on which it is mounted with the ability to move and fix a water overflow device with a drainage tube, and each sprinkler unit is made in the form of a tee and consists of washers with a nozzle, a nipple, a vertical thick flexible tube, a beam of thin flexible x tubes and sleeve, wherein one end hermetically mounted thin flexible tube made of equal length and fixed at second ends of the horizontal panels. 2. Sprinkler installation according to claim 1, characterized in that a suspension bracket is fixed to the frame with ties to hang the sprinkler in a horizontal position. 3. Sprinkler installation according to claim 1, characterized in that the level of the outlet openings of the flexible tubes is located above their inlet openings. 4. Sprinkler installation according to claim 1, characterized in that a fine filter is installed between the pump and the water pipe.

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