SU1739905A1 - Dropper - Google Patents

Abstract

The invention relates to the cultivation of agricultural crops, in particular drip irrigation. The circuit of the invention is to reduce energy consumption and simplify the design of the dropper. This goal is achieved by the fact that, in the known design of the dropper, including a check valve, a lid with openings for water outflow and an outlet, the check valve is designed as a hermetically sealed pipe 7 of the hollow chamber 5 made of an elastic gas-tight material tightly connected to the socket 6. The floor chamber 5 is provided with a cone-shaped locking and regulating element 9 mounted with the possibility of vertical movement relative to the cavity walls of the outlet nozzle 1. The base 8 of the cone-shaped locking regulating element 9 is surrounded by a load 10, and the outlet nozzle 1 consists of two coaxial cylinders of different diameters, the small outlet of the outlet nozzle 1 communicates with the irrigation pipe 2. Decreasing or increasing the air pressure in the system changes the position of the cone-shaped locking valve in the molding element 9 relative to the walls of the cavity of the outlet nozzle 1 up to the full opening or closing of the outlet opening therein. Accordingly, the water flow rate of the dropper varies from completely to the end - the cessation of the outflow of water to its maximum consumption. 2 Il. 3 (L with h W with with JV t & tt L

Description

The invention relates to the irrigation of agricultural crops, in particular to drip irrigation.

The purpose of the invention is to reduce energy consumption and simplify the design of the dropper.

Fig. G shows the proposed dropper, a longitudinal section; Fig 2 is the same in the working position.

The dropper includes a two-cavity outlet pipe 1 of the irrigation pipe 2, made in the form of two coaxial cylinders of different diameters, while the small outlet opening of the output pipe 1 formed by a smaller diameter cylinder is connected with the irrigation pipe 2, and the large one formed by a cylinder of larger diameter with cover 3, by means of, for example, a threaded joint. The lid 3 has openings of 4 g for the outflow of water, which are located, for example, on its side walls and have a diameter of between 5 and 10 mm. In the cavity formed by the lid 3 and the outlet nozzle 1, there is a floor chamber 5, made of an elastic gas-tight material, for example of vulcanized rubber, while the chamber 5 is tightly connected to the nozzle 6 of the air inlet pipe 7. Furthermore -regulating element 9 is installed with the possibility of vertical movement relative to the cavity walls of the outlet nozzle 1, up to its tight shut-off.

The base 8 of the shut-off and regulating element 9 is surrounded by a load 10 made, for example, in the form of a lead ring. The weight of the load 10 is such that when the air pressure in the system decreases, it squeezes the chamber 5 and lowers the locking and regulating element 9 down the drip pan as follows.

To transfer the dropper to the non-operating position, open the air supply valve to the air supply pipe 7 and. air is injected into it, for example: with a compressor, up to a predetermined pressure level, controlling the process of air supply with a pressure gauge. During this process, the chamber 5, filled with air, increases in volume and moves the cone-shaped shut-off valve.

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a damping element 9 relative to the walls of the cavity of the outlet nozzle 1 until it is hermetically sealed. This leads to the cessation of the outflow of water from the irrigation pipe 2 into the cavity of the lid 3. After this, the valve is closed, which prevents leakage of the air from the air supply tube 7 and chamber 5, allowing the latter to retain its shape and keep the cone-shaped control valve 9 in position tight overlapping of the small outlet of the outlet nozzle 1. The absence of burrs and roughness on the working surface of the cone-shaped shut-off and regulating element 9 and the walls of the polo contributes to the same purpose STI of the outlet pipe 1.

To transfer the droplets into the working position, the valve is opened and air is vented through it into the atmosphere until the pressure in the system reaches the values corresponding to the established rate of water flow by the dropper. So, if the water flow through a dropper should be 6 l / h, and the air pressure in the system corresponding to this flow is 1.3 atm, air will be released into the atmosphere when the arrow on the pressure gauge shows 1.3 atm. Thereafter, the valve is closed, which prevents leakage of remaining air from the system. Due to the fact that the air pressure in the system as a result of its release into the atmosphere decreases as compared with the initial pressure, the deforming effect on the chamber 5 of the weight-fitting base 9 of the shut-off and regulating element 9 of the load 10 increases. Under the influence of the load 10 the chamber 5 sags, taking the locking and regulating element 9 is carried along with it. In the new position, a gap is formed between the walls of the cavity of the outlet nozzle 1 and the surface of the cone-shaped locking and regulating element 9, the dimensions of which can fluctuate Over a wide range, - and are determined by the amount of air pressure in the system, which in turn, corresponds to one or another established rate of water consumption by the dropper. In the resulting 51

The discharge from the irrigation pipeline 2 under the influence of the forces of Gravity enters the water, which then flows through the openings 1 in the lid 3 to the atmosphere, thus providing the required water supply for the plants. At the same time, the relatively large size of the holes, k (mm), is a factor preventing their clogging with silt particles and facilitates washing out of dropper sediments.

Claims (1)

Invention Formula A dropper containing a check valve, a lid with openings for the outflow of water, and an outlet ptprubka, characterized in that 39905 in order to reduce energy consumption and build a groove, a non-return valve is placed in the cavity, which is about -. developed by the outlet pipe and the lid, and made in the form of an air inlet pipe hermetically connected to the pipe, a hollow chamber made of an elastic gas-impermeable material, which is equipped with a conical back-regulating element with a supporting weight that is vertical with respect to the walls 15 of the core of the outlet pipe consisting of two coaxial cylinders of different diameters, wherein the small outlet of the outlet pipe communicated with the irrigation pipe. ™ f frf f-f & rrrr r r1irff + ie & Sirrr ririr. l BUT fff  SS rf / 77-yy - /// / sr