SU1012845A1 - Command pulse generator for sprinkling system - Google Patents

Abstract

1. COLLAPSE OF COMMAND IMGOLS FOR RAIN EARTH SYSTEMS, including a hydraulically driven feeder body mounted on a pressure pipe. connected to a distributor kinematically associated with a time-controlled valve, the cavities of which are connected to a pressure pipeline before and after the closure member, characterized in that, in order to expand the power capabilities by using a generator as a pressure regulator at up to: clothing, the working cavity of the valve the valve is connected to the pipeline before the valve and the valve, through the pipe to the valve, through an adjustable choke, and after the valve through the pipe e draw valve having a hydraulic actuator controlled by a distributor, and a follower spring-loaded valve regulates my membrane. 2. The generator according to claim 1, with the fact that the generator is equipped with a waste valve (L with spring-loaded adjustable meme, swarm drive, controlling the cavity of which is connected to the distributor ..

Description

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The invention relates to the field of irrigation automation. A known generator of command pulses, including a shut-off organ installed in a canape of the pipeline of a system with a hydraulic actuator of hydrorepe of time with a throttle equipped with an adjusting screw, a spool valve, is kinematically connected by means of a lever mechanism with porous hydrorelectric time (1. The disadvantage of the generator is a low overhead on turbid irrigation water. Also known is a generator of command pulses from sprinkling systems, including a stop valve mounted on the discharge pipe The drive is connected to a distributor kinematically associated with a time-controlled valve, the cavities of which are connected to the discharge pipeline before and after the shut-off organ 2. The generator lacks limited functionality due to the inability to use its working member to adjust the pressure in the network after the generator. the invention is an extension of the functional Bohemocouples by using a generator as a pressure regulator during sprinkling. This goal is achieved by the fact that the working cavity of the valve actuator is connected to the pipeline before and after the valve, and to the pipe before the valve, through a regulating choke, and after the valve, through a series-connected non-return valve having a hydraulic actuator controlled by a valve. and a follow valve with a spring-loaded adjustable membrane. In addition, the generator is provided with a waste valve with a spring-loaded adjustable diaphragm actuator, the control cavity of which is connected to the distributor. The drawing shows the scheme of the proposed generator. The generator includes a regulating shut-off valve - valve 1, plate 2 of which is connected by an igniter 3 to the diaphragm 4 of the hydraulic actuator 5, the working chamber 6 of the second is connected to the pipeline 7 to the closing organ 2 through the throttle 8 and the filter 9, the follower valve 10 with the setting spring 11, which is connected by a tube 1 with a pipe 13 after the closure body 2 and the tubes 14 and 15 through a check valve 16 with a working chamber b. The check valve 16 has a diaphragm actuator, the control cavity 17 of which with is. through connecting tubes 18-20 through distributor 21 is connected with pipeline 7 to the valve body 2 and with the atmosphere. The distributor 21 is kinematically connected by means of a lever mechanism 22 with a differential of 23 of the time relay. The timed hydro relay includes a separating chamber 24 with a membrane 25, a variable choke 26, a check valve 27, and a hydraulic actuator 28 with a piston 23. A piston. time relay is differential. The cavity with the hydraulic actuator rod 28 connecting pipes 20 and 29 is connected to the pipe-line with water 7 to the closure member 1, and the submembrane cavity of the separating chamber with 1 "" connecting connecting pipes 19 and 20 through the distributor 21 to the pipeline 7 to the closure body and to the atmosphere. Cavities A and B are filled with oil over time. On the pipe 13 after the shut-off member 1, a drain valve 30 is installed with a diaphragm actuator 31 and adjustable. spring 32. The control cavity of the actuator 31 through connecting pipes 33, 19 and 20 through the valve 21 is hydraulically connected to the pipeline 7 to the valve body and the atmosphere. The generator works as follows. In the closed position of the closure member 1 in the initial position, the pressurized water through the filter 9 and the throttle 8 enters the working chamber 6 of the hydraulic actuator 5, then through the pipe 15 into the check valve 16, which is closed, since the control cavity 17 is connected through the distributor 21 to the atmosphere. The pressure of water acts on the membrane 4, and the locking member 1 is in the closed position. Bleed valve 30 is open because the control cavity of the actuator 31 is connected via the distributor 21 to the atmosphere, and the water from the pipe 13 is discharged until the desired lower level of the pulse decay pressure is reached, after which the valve 30 is closed by the spring 32. Water from the pipe 13 drops to the set pressure required for switching the actuators on the irrigation system is set by the adjustable spring 32. At the same time, the water under. The pressure in the tube 29 enters the rod cavity of the hydraulic actuator 28 time-control valve, and the oil from cavity B is squeezed through the check valve 27 b cavity A, since the submembrane cavity of the separation chamber 24 is connected through the tube 19 and the distributor 21 to the atmosphere. When the piston 23 reaches the extreme left position, the distributor 21 is switched by means of the lever mechanism 22. From the distributor 21, water under pressure through the tube 19 and further along the tubes 18 and 33 enters the sliding cavities

actuators, respectively, check valve 16 and waste valve 30.

Thus, the waste valve 30 is closed and the check valve 16 is opened. When the check valve 16 5 is opened, the working chamber b is connected through the follower valve (autopilot) 10 and the pipe 12 to the pipe 13 after the stop valve. At this, the pressure in the working chamber b drops, the plate 2 of the valve 1 moves upwards and opens water access to the pipeline 13 of the irrigation system. The pressure from the pipeline through the tube 12 is transmitted under the membrane of the next valve 10. When the specified pressure value is reached, the reference spring 11 compresses and decreases the valve cross-section 10, which leads to an increase in pressure in the working chamber b and covering the stop valve 1. Water flow : decreases, pressure after closure body

I in the pipeline falls, sets the spring 20

II moves the diaphragm of the valve 10 and thereby increases the flow area of the valve. The pressure in the working chamber b decreases, the plate 2 of valve 1 moves upwards and again increases the pressure after the valve 1 25 in the flow tube 13.

Next, the adjustment process occurs ana | lor {chno.

 Thus, in the open state, i.e. when sprinkling, the generator works as a pressure regulator. Adjustment to the required pressure is carried out by varying the degree of tightening of the driver, the spring 11, for example, by means of an adjusting screw (not shown).

During operation of the device in the regulator, the water pressure through the pipes 19 and 20 through the distributor 21 is transferred to the submembrane cavity of the separation chamber 24. The water pressure is sensed by the membrane 25, and the oil is forced from the cavity A into the cavity B through the throttle 26. At the same time the differential piston 23 is moved to the extreme right position and by means of the lever mechanism 22 the distributor 21 is switched to its original position (drawing), in which the control cavity 17. connects to the atmosphere the swarm, the check valve 16 is closed, the pressure in the working chamber b is increased and the shut-off member 1 is in the zak position. (I | ПЬ. The water supply to the system is closed. Then the process of the device operation is repeated. The displacement time of the differential piston 23 to the extreme right position (time watering) is set using variable (adjustable) throttle 26.

The economic effect of the proposed generator is to increase the efficiency of irrigation and to reduce aatpat - to the construction of automated irrigation systems with hydro-pulse control. In addition, there is no need to install a pressure regulator on irrigation systems.

Claims (2)

1. Generator of command pulses for sprinkler systems, including a hydraulic shut-off element mounted on the pressure pipe ”wire. connected to a dispenser kinematically connected to a time hydraulic relay, the cavities of which are connected to the pressure pipe before and after the shut-off element, characterized in that, in order to expand the potential capabilities by using a generator as a pressure regulator during sprinkling, the working cavity the drive of the locking member is connected to the pipeline before and after the locking member, and to the pipeline to the locking member through an adjustable throttle, and after the locking member through a follower? but connected check valve having a hydraulic actuator controlled by a distributor, and a follow-up valve with a spring-loaded adjustable? my membrane. 2. The generator by π. 1, on the condition that the generator is equipped with a relief valve with a spring-loaded adjustable membrane, a branched actuator, the control cavity of which is connected to the distributor. > to Joint venture