RU186761U1 - EMITTER DROPPER FOR IRRIGATED IRRIGATION OF AGRICULTURAL CROPS - Google Patents

Abstract

The utility model relates to agricultural hydraulic engineering reclamation, in particular to irrigated agriculture, and can be used in irrigation systems of surface irrigation.

The emitter dropper is made in the form of a flat product made of polyethylene, on which there is an inlet filter with cells; a labyrinth channel with one turn inside the dropper through 180 ° and is a channel with gear obstacles, the teeth are located directly in the labyrinth channel itself; pool for collecting water with a hole for water outlet; the filter is located on the back of the dropper and is shifted to the edge of the emitter, made flush with the bottom of the dropper; filter cells have a rectangular shape with an aspect ratio of 1: 2; the distance from the top of the teeth to the opposite wall at the point of rotation of the labyrinth channel is 3/4 of the distance from the top of the teeth to the opposite wall in a straight section of the channel, while the distance between the teeth remains constant; a recess has been made at the turning point on the inside of the channel.

The inventive utility model allows to increase the reliability and efficiency of the dropper, provides increased yield of irrigated crops. 1 of FIG.

Description

FIELD OF TECHNOLOGY TO WHICH A USEFUL MODEL IS

The utility model relates to agricultural hydraulic engineering reclamation, in particular to irrigated agriculture, and can be used in irrigation systems of surface irrigation.

BACKGROUND

Those involved in crop production inevitably face the problem of applying liquid fertilizers and watering. One of the most effective methods for solving this problem is irrigation, in which drip tape is used. With its help, the consumption of resources is significantly reduced, productivity increases, the spread of weeds and plant diseases decreases. The drip tape design is a thin-walled tube with holes. The method of arranging the outlet is extremely important. This determines the quality of irrigation and the durability of the entire system. One of the best innovations in this area is an emitter drip tape. In its application, irrigation occurs through emitters - special labyrinth flat droppers. The design of the latter creates turbulent flows that contribute to self-cleaning. In addition, when using it, you do not need to pay much attention to filtering water for irrigation. This tape is less clogged and lasts significantly longer.

Known dropper for combined irrigation, including irrigation pipe having outlet openings, a device for filling with water, made in the form of a sleeve with a ribbing of the outer surface associated with the inner wall of the irrigation pipe, labyrinth channels, radial openings and valves, characterized in that the labyrinth channels are made in the form of wedge-shaped longitudinal grooves hydraulically interconnected, the depth of which relates to a width of 0.8 ... 1.2, while the distance between the grooves is 1.2 ... 1.6 wish to set up their groove widths. (Description of the utility model for the patent of the Russian Federation No. 154632, IPC A01G 25/02, published on 08.27.2015).

The disadvantages of the known device include design complexity, low operational reliability of the water dispenser and stringent requirements for the quality of irrigation water, that is, limited functionality and high cost associated with low manufacturability in mass production.

There is an emitter dropper, which is a flat polyethylene product on which an inlet filter, a labyrinth for compensating pressure, a pool for collecting water, an opening for water outlet are made (http://superda4nik.ru/tipy-kapelnyx-lent-dlya-poliva -v-teplice /. Revealed March 25, 2018).

This dropper has a rectilinear part at the beginning of the labyrinth channel at the place where the filter passes into the labyrinth channel. In this section of the labyrinth channel, a laminar flow will form, and at the site of the first obstacle, contaminant particles will accumulate and block the beginning of the labyrinth.

The length of the labyrinth channel is less than one length of the emitter itself, which is not enough for the necessary pressure equalization and, as a consequence, equalization of water flow. This emitter cannot create a uniform water flow at the required distance of the drip tube (more than 130-150 meters), which no longer meets the requirements of modern drip irrigation systems in our time. Also, such a short labyrinth channel cannot create a low flow rate of water from a dropper (from 1 l / h or less), which is also a requirement of modern drip irrigation systems in our time.

The closest technical solution proposed for the prototype is an emitter dropper, which is a flat polyethylene product on which an inlet filter, a labyrinth for compensating pressure, a pool for collecting water, an opening for water outlet are made. (http://www.extruder.cn/ru/xdc-571.html?yclid=839904894586652&yclid=1577048297343299734. Identified on March 25, 2018).

The difference of the proposed device is that the filter of this emitter has recesses on the back side in which particles of contaminants accumulate, which leads to premature failure of the entire emitter. The filter has oblong shaped openings that allow more particles of contaminants to pass through which can clog the labyrinth channel. The labyrinth of this emitter at the turning point does not have enough obstacles for the formation of a turbulent flow, which contributes to the formation of a laminar flow of liquid, then along with the formation of new turbulence, conditions are created for the deposition of solid suspended particles of small pollutants (less than 100 microns) that silt the labyrinth channel and do not allow fluid to pass freely through the labyrinth channel. Also, even with a partial narrowing of the passage of the labyrinth as a result of siltation, the water flow in such a dropper differs from the nominal one, which leads to uneven watering and fertilizer consumption from this emitter.

DISCLOSURE OF A USEFUL MODEL

The task to which the claimed utility model is directed is to increase the operational reliability of the dropper.

The technical result of the claimed utility model is to increase the life of the dropper.

The solution to this problem is achieved by combining the use of known signs of an emitter dropper, which is a flat product made of polyethylene on which an input filter is made in the form of cells; the labyrinth channel for pressure compensation has one rotation inside the dropper by 180 degrees and is a channel with gear obstacles, the teeth are located directly in the labyrinth channel itself; pool for collecting water; the pool has a hole for water outlet.

and new features, namely, that the inlet filter of the dropper is made flush with the bottom of the emitter structure, the filter cells have a rectangular shape with an aspect ratio of 1: 2. The filter is located on the back of the emitter (dropper) and is offset to the edge of the emitter. The distance from the top of the teeth to the opposite wall at the point of rotation of the labyrinth channel is 3/4 of the distance from the top of the teeth to the opposite wall in a straight section of the channel, while the distance between the teeth remains constant; a recess has been made at the turning point on the inside of the channel.

According to the patent information research, no combination of known and new features of the proposed utility model was found in the Sources of patent and scientific and technical information, which makes it possible to attribute the technical solution to the novelty.

These features are significant and are interconnected with the formation of a stable set of essential features sufficient to obtain the desired technical result.

The present utility model is illustrated by a specific example of execution, which, however, is not the only possible one, but clearly demonstrates the possibility of achieving the required technical result.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 shows a general view of an emitter dropper

IMPLEMENTATION OF A USEFUL MODEL

Emitter dropper for irrigation irrigation of crops includes:

1. Inlet filter.

2. Filter cells

3. Labyrinth for pressure compensation.

4. Teeth of the labyrinth channel

5. Pool for collecting water.

6. Water outlet.

The essence of the emitter dropper is that it consists of an inlet filter 1, is a pipeline with a number of rectangular cells with an aspect ratio of 1: 2. The filter is located on the back of the emitter (dropper) and is offset to the edge of the emitter. Cells 2, which are distant from the relief parts of the dropper, avoid the formation of turbulence near the inlet openings and therefore become less clogged, i.e. less pollutant particles get into them. Cell sizes 0.5 × 0.25 mm - 18 pcs. They serve to prevent contaminants that may be present in irrigation waters from falling into the dripper's working elements. All particles smaller than the filter cell pass freely through the labyrinth channel and do not clog the dropper. The labyrinth channel for pressure compensation is a channel with gear obstacles, creating a zigzag labyrinth in which irrigation water moves. The labyrinth channel has one turn inside the dropper by 180 degrees. Teeth 4, located directly in the labyrinth channel itself, and in the place of its rotation, create continuous turbulent flow in the labyrinth. The labyrinth has a special design of the teeth, and their location in the place of the turn of the labyrinth channel. The distance from the top of the teeth to the opposite wall at the point of rotation of the labyrinth channel is 3/4 of the distance from the top of the teeth to the opposite wall in a straight section of the channel, while the distance between the teeth remains constant. A recess 7 is made at the place of the turn from the inside of the channel. All this affects the creation of a uniform turbulent flow. The maze has two main functions. The first function: reducing the pressure in the dropper, creating as close as possible to the nominal constant flow rate of water at the outlet of the dropper, at different pressure values in the pipeline. Due to this effect, with a longer length of drip tubes (lines), uniform watering is created regardless of the pressure drop along the length of the drip tube. The combination of such parameters as: the cross-sectional area of the labyrinth channel (the width of the channel passage and its height) the height and shape of the teeth of the labyrinth channel create different values of the flow rate of water at the outlet of the dropper.

Second function: The continuous turbulent flow created by the teeth in the labyrinth channel prevents the deposition of solid particles on the walls of the labyrinth, which pass through the inlet filter, and prevents clogging of the labyrinth channel and ensures its operability. The pool 5 for collecting water is a container in a dropper, overall dimensions: 5.9 × 4.6 × 0.6 mm, has a water inlet from the “labyrinth to compensate for the pressure” and an outlet in the wall of the tube for water to exit. Water accumulates in the pool before exiting the dropper through the water outlet. The water outlet 6 has the form of a circle and is located in the middle of the pool for collecting water. Digging of irrigation water and dissolved fertilizers and plant protection products directly from the hole takes place.

Emitter droppers are built into the irrigation tape along its entire length. The special design of the emitters creates turbulence, due to which the water flow self-cleans from the particles contained in it. In addition, when using it, you do not need to pay much attention to filtering water for irrigation. This tape is less clogged and lasts significantly longer.

The inventive utility model allows to increase the reliability and efficiency of the dropper, provides increased yield of irrigated crops.

Claims (1)

An emitter dropper made in the form of a flat product made of polyethylene, including an inlet filter with holes; a labyrinth channel with one turn inside the dropper through 180 °, which is a channel with serrated obstacles, the teeth are located directly in the labyrinth channel itself; a pool for collecting water; in the pool there is also a hole for water outlet; characterized in that the filter is located on the back of the dropper and is offset to the edge of the emitter, made flush with the bottom of the dropper; filter cells have a rectangular shape with an aspect ratio of 1: 2; the distance from the top of the teeth to the opposite wall at the point of rotation of the labyrinth channel is 3/4 of the distance from the top of the teeth to the opposite wall in a straight section of the channel, while the distance between the teeth remains constant; a recess has been made at the turning point on the inside of the channel.

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