SU1521398A1 - Automatic system for pulsed watering - Google Patents

Abstract

The invention relates to agricultural production and can be used for efficient irrigation by pulsed sprinkling of cultivated areas while maintaining the most favorable conditions for water exchange in plants. The purpose of the invention is to simplify the design and increase the reliability of the system. The system consists of a pump unit combined with a generator of command pulses, made in the form of a valve 16 with a double-sided diaphragm spring-loaded valve 15 and a distributor 4, driven by an electrically controlled element 11 (solenoid). The latter is switched by signals from a computer complex 14 with sensors of 32-39 agrometeoparameters. In addition, the system includes a network of pressure pipelines 18 with impulse sprinklers installed on it, equipped with pneumohydroaccumulators 29 and two-position valves 20. Analyzing the sensor signals of agro-climatic conditions, the computing complex 14 through a time relay sends a signal to the operation of the electrically controlled element 11 switching the distributor 4 The latter controls the operation of the diaphragm hydraulic actuator at the inlet to the system pipeline 18, connecting it then to the pump during the filling of the pneumogy roakkumul tori 29 of pulse sprinklers, then to the drain pipe. The efficiency of the system is achieved by using a double-sided diaphragm spring-loaded valve 15, which ensures a sharp drop in pressure in the pipeline 18 and thereby a clear simultaneous operation of the sprinklers equipped with shut-off valves at their inlet with a similar double-sided diaphragm actuator. 1 il.

Description

The invention relates to agricultural production, in particular to stationary sprinkler systems with impulse sprinklers, and can be used for effective irrigation of cultivated areas while maintaining the most favorable conditions of water exchange in plants.

The aim of the invention is to simplify the design and increase the reliability of the system.

The drawing shows a diagram of an automatic pulse sprinkler system.

The system includes an electric motor 1 with a pump 2 installed on its shaft, the output pipeline 3 of which is connected to the pressure input of the on-off distributor 4, on the common flow 5 of which anti-phase locking bodies 6 are installed, made in the form of valve plates to block the valve openings 7 of the pressure input and the discharge line 8 of the distributor. The stem 5 of the distributor 4 interacts with the spring 9, which abuts against the distributor housing and the adjusting nut 10. The electric control element I (solenoid), the stem 12 of which is rigidly connected to the distributor stem 5, is connected through a time relay 13 to the counter regpayuschaya machine 14 computing complex.

The outlet of the distributor 4 is connected to the above-membrane cavity of the double-sided membrane spring-loaded valve 15, the rod of which is connected with the two-way valve 16 at the inlet of the discharge pipe 17. To, the valve 16 connects the discharge pipe 18 of the system to the outlet of the pump 2 or with a drain pipe 17. A branch pipe 19 connects the pressure pipe 18 to the double-sided diaphragm valve 20, the KOTOpoi rod is equipped with a spring 21 with a horizontal pre-tension nut and container; 1 the water supply valve to the sprinkler chamber 22, having a rotary mechanism 23 and a nozzle 24. A branch pipe 25 for supplying pressurized water to the port 22 of the sprinkler and a branch pipe 26 for supplying water to the submembrane cavity of the valve 20 are connected to the pipeline 27 for supplying the water to the sprinkler. A non-return valve 28 is installed at the entrance to the pipeline 27; a pneumatic accumulator 29 is connected to the pipeline 27, inside of the casing of which there is an elastic cavity 30 filled with air. A check valve 28 is installed in the pipe 31, connected to the outlet pipe 19. The inputs of the computer complex 14 are connected to the outputs of the sensors 32-39, recording the strength and direction of the wind (32), soil moisture (33), illumination (34) , air temperature (35), air humidity (36), soil temperature (37),. soil characteristics and. forms of its processing (38), level

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fertilize and fertilize the soil (39). If necessary, other control elements can be introduced into the program of work of the computing machine of the computing complex.

The submembrane cavity of the valve 15 is connected to the pressure pipe by tube 40, and a spring 41 with an adjusting nut is installed on its stem.

The elastic cavity 30 of the pneumohydroaccumulator during emptying rests on a grid 42 placed inside the case. The cavity 30 is filled with air to the required pressure through the jet 43 by means of a pump or air duct connected to a compressor. The pressure in the cavity is monitored by a pressure gauge 44. When water is released from the pneumohydroaccumulator, the walls of the elastic chamber rest on the grid 42.

The figured membranes 45 can be inserted into the rotary mechanism 23 of the sprinkler, allowing irrigation of the plants not in a circle, but, for example, in a quadrangle. The inlet valve 16 pipe 46 is connected to the output pipeline 3 of the pump.

The automatic impulse sprinkler system operates as follows.

When the engine 1 is turned on, the pump 2 supplies water from the water source to the pipeline 3, which through the distributor 4 enters the aperture valve cavity 15 and closes the water passage to the drain pipe 17 by means of the valve 16, which is closed by the spring 41 force. the discharge line 18 and is distributed over the pulsed sprinkler installations mounted on the irrigated area.

The valve 6 of the distributor, which presses the water pressure and the spring 9 to the side of the valve hole 7, does not allow pressure to be released from the over-membrane cavity of the valve 15 to the discharge line 8.

The flow of impulse sprinklers into water via the discharge pipe 19 enters the supermembrane cavity of valve 20 and closes the passage of water to the nozzle 24 of the sprinkler 25 from the nozzle 25 by the pressure of water and the spring 2 and compresses the elastic through the nozzle 31 and the check valve 28 of the pneumohydroaccumulator 29. cavity 30. At the same time, pressure water is supplied to the diaphragm of valve 20, but valve 20 does not open, since its stop valve is held against its saddle by the force of a spring 21 mounted on the valve stem ana.

Without the discharge of water from the sprinklers during operation of the pump 2, the water pressure in pipelines 46 and 18 is equalized, and pressurized water under this pressure from pipe 18 enters the submembrane cavity of the diaphragm valve 15 through pipe 40, but at the expense of spring 41 installed on the valve stem, no water is discharged into the drain pipe 17.

After the accumulation of water in the pneumohydraulic accumulator 29 and pressure equalization in pipelines 46 and 18, time relay 13 triggers and electrically controlled element (solenoid) 11, whose IUTOK switches the distributor 4 by pulling in the core 12. Water is discharged from the upper part of the membrane KjianaHa 15 through the discharge line 8. At the same time, the pressure of the water flowing through the pipe 40, the membrane rises and the valve 16 closes the passage of water from the pipe 46 to the pipe 18 and opens the discharge of water from the pipe 18 to the drain pipe 17. There is a decrease in pressure The water in the pipe 18, the check valve 28 closes and prevents water from discharging from the pneumohydraulic accumulator 29 of the pulsed sprinkler. At the same time, the pressure of water in pipeline 19 decreases, water under pressure in nozzle 26 moves the diaphragm to the left and with a piston 1, opens the passage into chamber 22 through a stem with a shut-off valve through pipe 27 and nozzle 25 due to the energy of expansion of air in the elastic cavity 30, water is discharged from the sprinkler through the nozzle of the sprinkler 24 into the irrigated area from the housing of the pneumoaccumulator 29. The discharge of water from the sprinkler continues until the walls of the elastic cavity 30 with air are supported on the net 42, allowing The free water can flow out of the pneumohydroaccumulator to pipeline 27. During this period, time relay 13 triggers and solenoid 1 of distributor 4 switches to its original position, spring 9 moves stem 5, and 6 bodies interconnect valve membrane 15 with pipeline 3 and close the inlet of the waste line 8, after which the cycle of operation of the sprinkler system. We repeat.

The described operation of the pulsed sprinkling system allows it to be turned on at any given time based on the information supplied to the program of the computing complex 14 from the sensors.

changes in wind strength and direction (32), soil moisture (33), sowing illumination (34), air temperature (35), air humidity (36), soil temperature (37), along with the soil characteristic data and forms of its processing (38), the level of fertility and fertilizer of the soil (39).

The described system of pulsed sprinkling allows refusing ducts that are branched out over the irrigated area, create reliable in operation sprinklers of pulsed action and signal generators, combined with a computer that sets the work program of the irrigation system taking into account agroclimatic factors of plant growth, which allows increasing the efficiency of watering by maintaining optimal conditions of water metabolism of plants.

Claims (1)

Invention Formula An automatic impulse sprinkler system, including sensors of agro-climatic conditions of plant growth, connected to a computer complex with a time relay and an output electrically controlled element, a network of pressure pipelines with impulse sprinklers, connected via a Yuli pulse generator with a branch pipe to the pump Electrically driven, characterized in that, in order to simplify the design and increase the reliability of the system, the irrigation impulse generator is designed as a double-sided membrane spring valve, the submembrane cavity of which is connected to the discharge pipe, and transmembrane via a two-way valve with an electric control element - to the drain pipe, the pneumohydroaccumulators and pulse sprinklers are connected to the discharge pipe through a non-return valve and filled in the shape of a sprinkler sprinkler to the pressure pipe through a non-return valve and filled into a dispenser in the shape of a dispenser valve. a cavity supported on a grid installed in the case of a pneumohydroaccumulus torus connected to a source of compressed air and equipped with a manometer, and the locking member of each pulse sprinkler in pyulnen as a spring loaded two-way membrane valve supra- porschneva cavity of which is connected to the pressure line, and podporn1ne- va - - with pnev.mogidroakkumul torus.