SU1523124A1 - Automated water-distribution system for subterranean irrigation - Google Patents

Abstract

The invention relates to agriculture, namely, irrigation systems with closed pipelines for irrigating agricultural crops, and can be used to automate sub-irrigation. The aim of the invention is to increase the reliability of operation. An automated water distribution system for subsurface irrigation consists of a source of irrigation, distribution and irrigation pipelines and a head, end 7 and intermediate water distribution devices. Water distributing devices are made in the form of wells with reception, discharge and transit 13 chambers, transit and irrigation siphons with vacuum tubes on the hood and in the form of control devices with actuators. In the transit chamber 13 of the end water distribution device 7, there is a float actuator cooperating with the stem 49 of the normally closed valve 44. The output 52 of the normally closed valve 44 is in communication with the atmosphere, and its output is hydraulically connected to the vacuum pipe at the front transfer siphon of the head distributor. After the last section has been irrigated, the transit siphon is turned on and the transit chamber 13 of the end water distribution device 7 is filled. The float actuator opens the normally closed valve 44 and informs the vacuum tube on the hood of the transit siphon of the head water distribution device. At the same time, the system starts a new irrigation cycle, which increases the reliability of operation. 6 Il.

Description

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Dov and head, end 7 and intermediate water distribution devices. Water distribution devices are made in the form of wells with reception, discharge and transit 13 chambers, trawling and irrigation siphons with vacuum tubes on the hood and in the form of control devices with drives. In the transit chamber 13 of the end water distribution device 7, a float actuator is installed, which interacts with the rod 49 of the normally closed valve 44. The input 52 of the normally closed valve 44 is in communication with the atmosphere, and its output is a guide.

Equally connected with a vacuum tube on the hood of the transit siphon of the head water distribution device. After the irrigation of the last section has been completed, the transit siphon is turned on and the transit chamber 13 of the end water distribution device 7 is filled. The float actuator opens the normally closed valve 44 and informs the vacuum pipe on the hood of the transit siphon of the head water distribution device. At the same time, the system starts a new irrigation cycle, which increases the reliability of work. 6 Il.

The invention relates to agriculture, namely, irrigation systems with closed pipelines for irrigating agricultural crops, and can be used to automate sub-irrigation.

The purpose of the invention is to increase the reliability of the automatic control system.

FIG. 1 shows an automated water distribution system for subsurface irrigation, a general scheme; in fig. 2 - the design of the head water distribution device; in fig. 3 is a view A of FIG. 2; in fig. 4 shows a section BB in FIG. 2; in fig. 5 shows a section B-B in FIG. 2; in fig. 6 shows the design of the final water distribution device.

The automated water distribution system for subsurface irrigation contains a water supply source 1, a distribution pipe 2, irrigation pipes 3 with subsoil humidifiers 4, a head water distribution device 5, intermediate water distribution devices 6, an end water distribution device 7.

Water distribution devices There is a common well 8, in which, using horizontal 9 and vertical 10 partitions, the receiving 11, diverting 12 and transit 13 chambers, inlet and outlet nozzles 14 and 15, nozzles 16 and 17 of irrigation pipelines, common hood 18 with hermetic compartments are made 19-21, vacuum tubes 22-24, irrigation 25 and 26, and transit 27 self-generated siphons, made in the form of drain pipes, the bases of which are enclosed in discharge and transit chambers, the upper ends with a hood 28 of the hood form crests of siphons.

Water distribution devices are provided with control devices made in the form of step switches of valves kinematically connected with float actuators. The step switch is made in the form of a cam 29 with a protrusion 30 and the housing 31. In the housing 31, peripheral, through a predetermined pitch, are normally open valves 32-34, with the rods 35 of which the protrusion 30 of the cam 29 alternately interacts. The valves are connected by vacuum tubes to the hoods and the atmosphere.

The float drive is made in the form of a float 36 with a toothed rack 37, a ratchet wheel 38, which is connected by a shaft 39 with a cam 29. The float 36 is in the hood compartment 40 above the well receiving chamber. The ratchet wheel is equipped with a locking dog 41.

Compartment 40 is connected by opening 42 to the atmosphere. Receiving chamber 11 through opening 43 in horizontal partition

9 is connected to the well cavity 8. The well can be made of prefabricated metal, concrete or reinforced concrete structures, as well as other non-deficient materials.

All water distribution devices are made similarly, except for the end one. A normally closed controllable valve 44 is installed in the transit chamber 13 of the end water distribution device. Its output is connected by a pipeline 45

with a vacuum tube 24 on the hood of the transit siphon of the head water distribution device. The normally closed valve has a drive in the form of a float 46, a rocker arm 47 and a hemispherical tip 48 interacting with the rod.

49. The transit chamber has a drain pipe 50 with an adjustable drain by means of a valve 51. Input 52 is in communication with the atmosphere.

Sun system is divided into n opottjaeMbix plots.

The system works as follows.

When water is supplied through the inlet nozzle 14, the receiving chamber 11 is filled and through the opening 43 in the cavity of the well 8 at the initial moment the water begins to evenly overflow through the ridges (in this particular case) of all three siphons, simultaneously removing air from all the compartments 19-21 of the hood 18.

A siphon, whose vacuum tube is blocked from the access of atmospheric air, almost instantly switches on to full capacity. The water level in the cavity of the well decreases sharply and the overflow into the siphons, the vacuum tubes of which are connected to the atmosphere by means of normally open valves, stops. To supply a stream of water to a regular siphon, it is sufficient to open the air inlet into the compartment of the working siphon and shut off the vacuum tube of the desired siphon. This is accomplished using the step switch of the normally open valves 32-34 automatically as follows.

The water that flows through the siphon into one of the discharge chambers 12, then, for example, through the nozzle 16 into the irrigation pipeline 3, is distributed through the humidifiers 4 and enters the root-soil layer. After the soil is saturated, its absorbability decreases, thereby reducing the flow rate in the irrigation pipeline, which leads to an increase in the level of water in the cavity of the well 8, while the float 36 rises and the ratchet wheel 38 paired with the cam rotates 29 by a common shaft 39. The cam 29 is rotated to a predetermined angle (pitch) and the protrusion 30 closes the valve 33 with the help of the rod 35 and opens the valve 33 and interrupts the connection with the vacuum atmosphere, the tube 23. The siphon 25, which previously operated, stops working are, with the water flow through the conduit 17 enters into the next watering line 3 (in this case, right).

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The water level in the cavity of the well 8 drops and the float 36 returns to its lower initial position. After testing the next siphon 26, a transit siphon 27 is turned on, supplying water through the outlet nozzle 15 and the distribution pipeline 2 to the next water distribution device, which is working similarly to the first one.

This is followed by irrigation up to the last section of the section. After working out the irrigation siphons of the terminal water distribution device, a transit siphon is turned on, water fills the transit chamber, the float 46 pops up and with the help of the rocker arm 47 and the tip 48 through the brush 49 opens the normally closed valve 44 and connects with a pipeline 45 and a vacuum tube 24 a compartment for a transit siphon of the head water-distributing device with the atmosphere.

At the same time, the system continues work, starting a new cycle of irrigation. Through pipe 50 and valve 51, water is drained from the transit chamber 13 of the end water 5 of the switchgear, the float 46 is lowered and the valve 44 is closed.

Claims (1)

Invention Formula Automated water distribution system 0 for a system for subsoil orbit, including a source of water supply, distribution and irrigation pipelines, head, end and intermediate water distribution devices, made in the form of a well with receiving, diverting 5 and transit chambers, with transit and irrigation siphons with vacuum tubes on the hood and control devices with a drive, characterized in that, in order to increase the reliability of operation, the system is equipped with a normally closed valve with inlet and outlet, stem and float drive, while the float drive is installed in the transit chamber of the end water distribution device and is kinematically connected with 5 with a rod of a normally closed valve, the inlet of which is in communication with the atmosphere, and the outlet is hydraulically connected with a vacuum tube on the hood of a transit siphon of the head water distribution device. J {/ 4-OK 1 P fO10 Fie.2 SudA Q Fi.Z / J 20 21 / 7 nineteen t2 physical / 2