SU1687740A1 - Water distributing facility - Google Patents

Abstract

The invention relates to agriculture and can be used in amelioration as a water distribution device for closed irrigation systems. The purpose of the invention is to increase reliability and improve performance. The water distribution device contains a water distribution tank 1, into which water flows through the supply pipeline and is distributed alternately, depending on the set program in the hydraulic programmer, into irrigation and conveying siphons made in the form of straight cuts of pipes 3 and 5, on top of covered with drops, formed by a cruciform partition in the water distribution tank. At the same time, irrigation siphons are activated using a hydraulic programmer, and the transporting one is independent. The initial sections of the irrigation 4 and transporting 6 pipelines are located with a backward slope, and the height of the vertical pipe 5 of the transporting pipeline 6 is higher than the height of the vertical pipe of the irrigation pipe siphons 4. communicated with the hoods of irrigation siphons by vacuum tubes 11, the ends of which are placed inside the irrigation hoods above the ends of tubes 3 and below the vertical end pipe 5 transporting pipeline 6. 2 Il. cl

Description

The invention relates to agriculture, namely to automated water distribution structures for irrigation systems.

The purpose of the invention is to increase reliability and improve performance.

FIG. 1 shows a siphon water distribution device, a plan view; in fig. 2 is a section A-A in FIG. 1.

The device contains a water distribution tank 1, mounted on the supply pipe 2, pipes 3 siphons in irrigation pipes 4 and pipe 5 siphons

into the transporting Pipeline 6. The tank 1 is divided by a cross-shaped partition 7 into separate chambers - siphon hoods, while in the lower part of the partition 7 there are triangular holes 8. The hood 9 siphons of the transporting pipeline are connected to the hoods 10 siphons of irrigation pipelines with vacuum tubes 11, which originate in the hood of the hood 9 and end in the cavity of the hoods 10 at the level above the vertical pipes 3 siphons irrigation pipelines, but below the vertical pipe 5 of the transporting pipeline. On the outside of the tank

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ABOUT

1, a cabinet with a hydroprogrammer 12 is fixed, connected to the hoods of 10 irrigation iphones by vacuum tubes 13, the cross section of which is 70–100 times the cross-sectional area of the air passage tubes 11.

The hydroprogrammer 12 is connected by a water inlet tube 14 to the inner web of the tank 1 and the drainage tube 15 by a transport pipeline 6.

The initial sections of irrigated 4 and transporting 6 pipelines are conjugated with the lower ends of pipes 5 and 3 of the siphons and are located with a reverse bias so that the upper part of the wall of the interface section is flush with the lower side of the wall of the final pipeline section with a reverse slope.

The hydraulic programmer 12 controls the opening-closing by means of one valve of the vacuum tubes 13 arranged coaxially. In this case, the valve can be actuated, for example, by means of a cam gear.

Water distribution device operates as follows.

The water through the supply line 2 enters the tank 1 and, filling it, pours over the ridges of all three siphons, and evenly into the pipes 3 irrigation siphons and in a smaller volume into the pipe 5 of the transporting pipeline, since the latter is slightly higher.

In the siphon during the overflow even of a small consumption there is an intensive suction of air from under the caporev. Due to the fact that the initial sections of the exhaust pipelines are laid with a reverse incline, the exhausted air is released into the pipelines without having a reverse access to the siphon through the reduced section.

In accordance with a predetermined program in the hydraulic programmer 12, the hole of one of the irrigation siphon caps is blocked, this siphon is charged at full capacity. The water level in the tank 1 is sharply reduced, and the overflow of water into the irrigation siphon, the vacuum tube 13 of which is open, as well as into the transporting siphon is stopped. The activated siphon does not turn off even at lower flow rates of water entering the device due to the presence of a triangular intake port 8 on the hood. The water level in the tank 1 is lowered to the level of the top (spike) of the triangular opening 8, through which air is drawn in under the hood of the siphon. The siphon capacity is reduced, and a balance is automatically established between the flow of water to the device and its discharge through a working siphon. The water level in the tank 1 at the calculated and reduced costs of a working siphon is stabilized near the mark

top of the triangular air inlet 8.

To supply water to another irrigation syrup, it is sufficient to open the access of atmospheric air to the vacuum tube 13

working siphon and block the vacuum tube of another siphon. In this case, in a working siphon, a vacuum is disrupted, the siphon is turned off, the water level in the tank 1 rises, it starts again

The overflow of water through the ridges of all siphons, the siphon with the vacuum control tube which is closed, is switched on to full capacity. To start the water through the siphon transporting vacuum

the tubes 13 of both irrigation siphons open, water overflow begins through the pipe 5, and since its head does not have an air inlet, and the pipes 11 are buried below the top of the pipe 5 and are located in

the flooded state; there is no air access under the hood 9 of the transport siphon and the siphon is charged. Having switched on at full capacity, the siphon lowers the water level in the tank to

the top of the triangular opening 8. The air entering through the thin tubes 11 under the hood of the transporting siphon does not affect its operation, with the subsequent charging of irrigated siphons with

their help.

Thus, to switch the direction of the flow of water from the transport siphon to the irrigation, the access of atmospheric air under its hood is closed (it is blocked

tube 13), a tube 11 creates a vacuum in it, the water level in it rises to the bottom of the tube 11, there is first a free flow of water into the pipe 3 of the irrigation siphon, and then the siphon is charged at full capacity. Since the pipe 3 irrigation siphon is located below the pipe 5 conveying siphon, and the hood 10 included in the work of the irrigation siphon is completely closed (atmospheric air is not supplied),

and under the bonnet 9, air enters, which does not affect the operation of the siphon during its operation, at its full capacity, through the tube 11 from under the bonnet 10 of the inactive irrigation siphon, transporting the siphon

is discharged.

The siphon water distributing device, due to the smoother forms of interface of the vertical pipe segments with the reducing pipelines, is characterized by a higher flow capacity compared to the prototype.

The proposed siphon water distribution device reduces the cost of erecting the entire structure and greatly simplifies its design, provides the ability to control two irrigation siphons, which, as a rule, are turned on alternately for the same time, and the transport siphon goes into operation independently.

Claims (1)

The invention The water distribution device, including siphons in the form of vertical sections of pipes, covered with hoods, the lower ends of which are connected to the transport and irrigation pipelines, hydroprogrammer, connected by vacuum 0 tubes with drips of irrigated siphons, that is. with a chain of increased reliability and improved performance, the initial sections of the irrigation and transporting pipelines are located with a reverse bias, the height of the vertical pipe of the siphon of the transporting pipeline is greater than the height of the vertical pipe of the siphon of irrigation pipelines and the pipe siphon of the transporting pipeline is connected to the pipelines of the irrigation pipelines by vacuum tubes whose ends are located inside the hoods of irrigation pipelines siphons above the ends of their vertical pipes, but ilk end of the vertical siphon pipe conveying pipeline. G4 figure 1 9, 6 GI J cpuff.Z