RU2323566C1 - Drip outlet conduit - Google Patents

Abstract

FIELD: agriculture; technique of agricultural crops drip irrigation with flexible spray pipelines.

SUBSTANCE: drip outlet conduit has flexible adjustable valve located above hollow made in pipeline wall inner surface. The valve is made of part of pipeline material in flexible blade shape with balancing groove in bent section.

EFFECT: even irrigation water supply over the entire pipeline length.

5 dwg

Description

The invention relates to techniques for irrigation of crops using the drip method using flexible irrigation pipelines.

A water outlet of an irrigation pipeline is known, including a housing with a drain hole and a fastening element connecting the housing to the pipeline, the housing being formed by two sidewalls connected by a vault consisting of a front horizontal part of a rear curvilinear horizontal part smoothly conjugated with it directed outwardly, with an outlet the housing hole is located in it opposite the rear curvilinear part of the arch, and the fasteners are made in the form of a plate placed on the inside of the pipeline and connected to its last body by means of screws made flush, while the plate is equipped with a protrusion with an oblique cut located behind the inlet (SU, copyright certificate No. 1501981, M. class A01 0 25/02, publ. 08.23.1989, Bulletin No. 31).

The disadvantages of this outlet are limited functionality, difficulty of installation and poor quality of irrigation.

A water outlet with a flexible pipeline is known, including an elastic casing installed in the wall and attached to the edges of the water outlet, one of which is bent into the pipe from the outside, the elastic casing is made in the form of a tube (SU, copyright certificate No. 378592, M. class. ЕВВ 13 / 02, A01G 25/02, publ. 04/18/1973, bull. No. 19).

The disadvantages of the described outlet are limited functionality and low operational reliability.

The closest technical solution is a water outlet, made in the form of a piston installed in the hole of the pipeline, equipped with a porous element overlapping the pipeline hole and pressed to the piston, for example, using a rigid plate connected to it (SU, copyright certificates No. 47109, M. class A01G 2 , B05B 1/20, publ. 05.25.1975, bull. No. 19).

The disadvantages of this outlet are limited functionality, low operational reliability, lack of ability to control the water supply.

Known exhaust valve to a flexible supply pipe, including a locking element attached to the inner walls of the pipeline and opening inside the pipeline, while the locking element is made of elastic and attached to the walls of the pipeline by perforated along the edges of the diaphragm (SU, copyright number 394493, M. C. ЕВВ 13/02, А01G 25/02, publ. 08/22/1973, bull. No. 34).

The disadvantages of this exhaust valve are low operational reliability, the lack of the possibility of a regulated water supply due to perforation in the diaphragm and a malfunction when changing the position of the valve relative to the soil surface.

Known mobile irrigation pipeline having water outlets in the form of flexible reflective valves fixed on the outside of the pipeline above the water outlet openings, while the water outlets are equipped with flexible adjustable valves fixed on the inside of the pipeline on the same axis as the reflective valves, while all valves have a round shape and are installed with the possibility of independent rotation relative to their axes (SU, copyright certificates No. 1818017, M. class A01G 25/02, publ. 05/30/1993, bull. No. 20).

The disadvantages of the irrigation pipeline include limited functionality, difficulty in operation, the need to shift flexible reflective valves, as well as the movement of adjustable valves - since there are several thousand of them on the irrigation system - and the lack of the possibility of a regulated water supply.

We accepted this pipeline as the closest analogue.

The invention consists in the following.

The task to which the invention is directed is to increase operational reliability and regulated water supply.

The technical result is a uniform supply of water along the entire length of the pipeline and increase productivity.

The specified technical result is achieved by the fact that in the known irrigation pipeline for drip irrigation systems having a drip outlet made in the form of a flexible adjustable valve located in the wall of the pipeline, including a movable tongue from the material of the pipeline during its manufacture, a water outlet is provided between the movable tongue and the supporting wall hole, while the tongue at the bend has a groove.

The invention is illustrated by drawings.

Figure 1 shows a drip outlet with a cut along the axis of the pipeline.

Figure 2 is the same, section aa in figure 1.

Figure 3 is a scan of the workpiece material of the pipeline.

Figure 4 is a section bb in figure 3.

Figure 5 is a section bB in figure 1.

Information confirming the possibility of implementing the claimed invention are as follows.

The water outlet is made in the wall of the irrigation pipe 1 and has a flexible adjustable valve 2 located above the recess 3 in the wall 4 of the pipeline, with which it forms a culvert. In front of the water outlet and behind it, the pipeline has a welded joint 5. At the bend, the valve 2 has a discharge groove 6, which is formed during the manufacture of the pipeline.

Irrigation pipeline with drip outlets is made as follows.

First, a blank is made in the form of a tape, as shown in FIG. On the tape, a valve 2 and a recess 3 are provided at a predetermined distance. Then, the workpiece is rolled up into a pipeline and butt welded, as shown in Fig. 5.

Drip outlet works as follows.

When water is supplied to the pipeline, a pressure is created that acts on the valves 2. At the same time, the pressure at the beginning of the pipeline will be increased and valve 2 will close to a greater extent, and the water flow through the water outlet will decrease. As you move away from the beginning of the pipeline, the pressure will decrease due to hydraulic resistance along the length and local losses. The magnitude of the effect on valve 2 will decrease, while due to the elasticity, the magnitude of the valve opening increases, the discharge groove provides an accurate response to pressure changes, and the flow rate along the length of the pipeline through all water outlets will be constant.

A uniform supply of water to the root layer of plants provides a guaranteed yield.

Claims (1)

A drip outlet including a flexible adjustable valve, characterized in that the valve is a movable tongue of pipe material, made in the manufacture of a drip outlet and located above a recess made on the inner surface of the wall to form a water outlet of the pipeline, the movable tongue at the bend has a discharge the groove.

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