SU545305A1 - Drip irrigation system - Google Patents

Description

FIG. 3 - part of the humidifier with the connection of injectors through the float regulators of the water level and the hydraulic lock on the injector.

The drip irrigation system includes a water supply source 1, a supply network consisting of a main pipeline 2 and a distributor 3 with a shut-off device 4; a distribution network consisting of pressure regulators 5, sectional distributors 6, telescopic pipes - humidifiers 7 and injectors 8 with hydraulic resistances 9 and holes 10 located under NIMI.

When the system is turned on, water from the water supply source 1 flows through the main pipeline 2 to field distributors 3 and then through the pressure regulators 5 to the floor sections. From the head regulator, which can be made in the form of a tank with a constant water level installed at a certain height, water is supplied to the sectional distributor 6 and then - to the pipes - humidifiers 7, of which are injectors 8, which are entered by the ends into the soil, water comes directly to the root system of plants.

Hydraulic resistances 9, installed at the entrance to the injector, provide siphon water flow through the injector, at which the vacuum in the injector periodically breaks down with air entering the hole 10. The hydraulic resistance can be made in the form of two or more consecutively arranged in the injector 8 calibrated holes 11 small diameter (see fig. 2), which provides effective quenching of the flow energy, allows the use of openings with a larger diameter and reduces the likelihood of their clogging.

With a narrow range of head changes along the length of the humidifier, it is more expedient to connect the injector 8 through inserts 12 of various lengths (see Fig. 2).

The installation level of the injector (insert length) is determined by the pressure at the point of connection to the humidifier and is chosen from the condition of obtaining the same pressure at the entrance to all injectors. In this case, a uniform distribution of water in the humidified zones is achieved.

To stabilize and regulate the flow rate of air supplied through the injector to the humidified zone, the injector 8 is made with a hydraulic lock (Fig. 3) 13. Therefore, water from the hydraulic lock flows into the lower part of the injector in equal portions, the size of which is determined by the forces of friction, and the hole 10 strictly defined portions of air are sucked in. To change consumption

The air trap is made with a different volume and diameter.

With a wide range of head changes and the length of the uvrelsnitel, the uniform distribution of water along the zones, is provided by hydraulic resistance at the entrance to the injector 8 in the form of a float regulator 14 of the water level. This increases the uniformity of water distribution and reduces the likelihood of clogging of the holes at the inlets of the regulator 14 and the injector 8.

The proposed system, in comparison with the known ones, allows, along with the maintenance of optimum humidity in the root system.

5 plants to improve its aeration conditions; controls the process of water and air supply, which facilitates the operating conditions of the system; eliminates excessive pressure caused by the weight of the water column in the injector and, accordingly, reduces the likelihood of clogging due to the use of hydraulic resistances with larger diameter holes.

Claims (4)

1. A drip irrigation system comprising a water supply source, supply network, distribution network and humidifiers with injectors, characterized in that In order to improve the aeration of the area under control and to control the water supply to the soil, a hydraulic resistance is installed at the entrance to each injector, and a hole is made under it, in the wall of the injector. five 2. The drip irrigation system according to claim 1, characterized in that, in order to stabilize and regulate the flow rate of air supplied to the soil, each injector is equipped with a hydraulic lock located below the threshold. 3. The drip irrigation system according to claim 1, characterized in that, in order to evenly distribute water over the wetted zones when the head varies along the length of the humidifier, the injectors are connected to the humidifiers through tubular inserts of various lengths. 4. The drip irrigation system according to claims. 1, 2, characterized in that the hydraulic Q resistance is made in the form of a water level float regulator. Sources of information taken into account in the examination: 1. Copyright certificate № 429784, cl. A 01G 25/06, 1974. 2. Patent of France No. 2133383, cl. A01G 25/00, 1972. §. I iiSM STIIli  : o (); h; (k ) 7 G7G | Y: T . S " / ir U -lu 13 1Rig 3