SU1658918A1 - Irrigation system - Google Patents

Abstract

The invention relates to agriculture and can be used for irrigation on slopes. The aim of the invention is to improve the operational reliability of the system, the efficiency of irrigation water use and the reduction of irrigation time. The irrigation system contains an open distributor 1, from which water is supplied to the supply pipe 2, on which valves and water distributors 4 are installed. The terminal end to 4 is equipped with a float sensor 5 of the water level. Water from the open tray distributor 1 is fed into the supply pipe 2, and then through the standpipe distributor 4 enters the irrigation pipeline 7, located parallel to the irrigation furrow 10. The stand design provides constant pressure and flow to each irrigation pipeline and the possibility of flushing sediment removal. 1 з п. Ф-лы. 4 il.

Description

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The invention relates to agriculture and can be used for irrigation on slopes.

The purpose of the invention is to increase the operational reliability of the irrigation system, the efficiency of irrigation water use and the reduction of the irrigation time.

Figure 1 shows the supply pipe, a longitudinal section; figure 2 - irrigation network plan; on fig.Z - one hundred k- water distributor, vertical section; figure 4 - section aa in fig.Z.

The irrigation system contains an open distributor 1, from which water enters the supply pipe 2, on which adjustable valve 3 is installed, as well as stand-by distributors 4, the end station is equipped with a float sensor of water level 5. Pipeline 2 is provided with a waste valve 6. Irrigated pipelines 7 with openings 8 and end plugs 9 are fixed parallel to the irrigation furrows 10 along a series of perennial plantings 11. Irrigation water fills the volume between the outer 12 and inner 13 pipes coming from the the pipeline through the outlet 14 is supplied to the irrigation pipe 7. When flushing the standpipe 4, water moves through the culvert 15 and the gap formed between the diverter 16 and the inner pipe 13. For movement, the inner pipe 13 is fixed by a lifting mechanism 17 finger 18. Air inlet and outlet to one hundred-way distributor 4 is carried out by valve 19.

Irrigation system works as follows

Before the beginning of irrigation, the mechanism 17 lowers the inner tube 13. the cone-shaped part of which is immersed closely into the outlet elbow 16, closing the culvert holes 15.

Culvert holes 15 have the form of a triangle with the base down. This shape of the hole eliminates the obstacle at the entrance of the inner pipe 13 into the outlet elbow 16.

Watering is carried out at the closed position of the waste valve 6.

The water from the open tray distributor 1 is supplied to the supply pipe 2 and, according to the indication of the float sensor 5, is controlled by the backside 3. The required flow for irrigating the area of one terrace due to the constant pressure in the stand-up distributor 4 is stably supplied to the irrigation line 7 through the outlets 14, drilled in the housing one hundred nas 10-15 cm above the surface of the earth. The excess water is automatically discharged through the upper openings of the inner tube 13 when the water level is higher than the set head (inner tube height). Then the water through the supply pipe 2 enters the one-way water distributor 4 of the downstream terrace. Water enters the furrow 10 in the form of jets flowing the same flow from all holes 8 at the same time. The holes are drilled evenly.

the length of the irrigation pipeline. The uniform distribution of irrigation jets is provided by varying the diameters of the irrigation holes.

The irrigation process proceeds by absorbing water B into the soil and its partial accumulation in furrow 10 on terraces with a horizontal web longitudinally, and on terraces with a longitudinal slope - in sections of furrows fenced off by irrigated

shields or intermittently cut furrows.

Flushing irrigation pipelines 7 is carried out at the closed position of the flushing waste valve 6 of the inlet pipeline 2. Opening the end plugs 9, the flushing water is drained into the irrigation furrows 10.

The system is completely drained and the supply pipe 2 is flushed by opening the waste valve 6, before the internal pipes 13 of the water distributors 4 are raised by the mechanism 17. Preventing the full exit of the cone-shaped part from the discharge ring 0 by 16. Polyethylene pipes are used pipes with a diameter of 25-40 mm.

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Claims (2)

1. Irrigation system, including supply and irrigation pipelines, as well as drainage pipes installed on the supply pipeline, which have outlet openings, in order to increase the operational reliability of the system, the efficiency of irrigation water use and to reduce the duration of irrigation, The ki are made of two concentrically arranged pipes, the outer of which in the lower part has an outlet elbow whose diameter is equal to the diameter of the inner pipe installed with the possibility of axial displacement and, the lower end of the inner the pipes are made cone-shaped; l has triangular-shaped water outlets with the base down. eleven 12 BUT 2. The system according to claim 1, wherein the end station is equipped with a float level sensor of water. Rig1 Aa