Low-pressure drip

 

(57) Abstract:

Usage: in the field of irrigation for differentiated supply of water from low-pressure drip area irrigated plot. Low-pressure drip has a body 2, provided with nozzles 6 and 7, mounted for movement relative to the housing 2. The nozzles are associated with drainage tubes 10 and 11 installed in plants. When installing the drip nozzles 6 and 7 are set to a height of providing a specified flow rate. If the height adjustment of the nozzle does not provide the necessary expenses, use pipes with different sizes of calibrated holes 8. 2 Il.

The invention relates to the field of irrigation and can be used for irrigation of orchards and vegetables in greenhouses.

There is a method of irrigation using low-pressure drip heads, installed vertically on the pipeline, which provides a gravity-flow water pressure. The pressure in these droppers is created when filling the hull with water and leaves the value determined by the height of the shell 30.40 mm This higher pressure allows water flow through the hole of 1.5.2.0 mm, which allows limited to the point, located along the line of the pipeline, which limits the possibility of its use in greenhouses or under irrigation of large trees.

A device for drip irrigation, comprising a housing with a water outlet pipe associated with a drainage tube [2]

This device provides water to the diversity-remoted from the device to the watering points.

The purpose of the invention individual adjustment of the flow rate of each discharge in accordance with the requirement of a plant.

The invention is illustrated in the drawing, where Fig.1 presents a view of the dropper in section, and Fig.2 the same in the plan.

Low-pressure drip installed on the pipeline 1 and engages the housing 2, a bottom 3 which is made with a calibrated hole 4 and hole 5 is installed the water outlet pipes 6 and 7, in the upper part of which has an orifice 8. The nozzles 6, 7 provided with a graduation in the form of millimeter divisions 9. To the bottom of the water outlet pipes 6 connected to the drainage tube 10 and the nozzles 7 of the tube 11 are installed in plants. The dropper is attached to the pipe cap 12. In the pipe 1 has the water outlet hole 13 and the ri install it on the pipe 1 determine the desired mode of operation. When watering vegetable crops dropper set up to feed to plants of the same consumption and compensation of additional losses generated by longer tubes 10 connected to the nozzles 6. Setting dropper is made in accordance with the calibration graph showing the dependence of flow from the head. Install pipe is made by millimeter divisions 9 deposited on the surface of the pipes 6 and 7. To supply the same flow nozzles 7 set higher than the nozzles 6. Tube 11 is set in close plants, and the tube 10 at a distant. After setting up the floodgates in the system serves water to that of the pipe 1 through the opening 13 enters the body dropper 2 and flows through the opening 4 to the plant, which is located directly on the dropper. Through a calibrated orifice 8 of the nozzle 6 input tube 10 is delivered to the most remote plants, and through an orifice 8 in the pipe 7 through the tubes 11 water comes to a less remote plants. Different pressure above the holes 8 in the pipes 6 and 7 supply the same flow, despite the different length of the tubes 10 and 11.

The same flow with a hole 4 is provided God irrigation peripheral zones of the projection of the crown, where the bulk of the absorbing roots, when setting up a drip set the pipe 6 with a larger diameter calibrated holes 8.

Low-pressure drip, comprising a housing with a group of water outlet nozzles associated with drainage tubes, characterized in that the water outlet nozzles mounted for movement in a vertical plane, are calibrated holes of different diameters, and on the surface of the nozzles caused graduation.

 

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SUBSTANCE: apparatus has cylindrical casing with inlet and outlet openings. Cylindrical casing has threaded covers and body. Valve and elastic cuff are movably positioned inside cavity of cylindrical casing. Apparatus is further equipped with additional cuff. Main and additional cuffs are provided with orifices. Valve is made in the form of concavo-concave lens arranged in spherical belt. Valve is manufactured from material having density smaller than density of water, in particular, valve may be made from cork of 0.2-0.3 t/m3 density. Valve is arranged in casing between cuffs and is adapted for alternating contacting through cuffs with projections oppositely arranged inside casing cavity. Projections are made in the form of spherical segments, with radius of spheres of segments being smaller than radius of spheres of concavo-concave valve lens. Difference between radii of projection sphere and that of spheres of concavo-concave valve lens is equal to thickness of elastic cuffs. Channels on apexes of cover and casing projections are extending in radial direction toward inlet and outlet openings.

EFFECT: increased efficiency and enhanced reliability in operation.

4 cl, 4 dwg

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