Device for watering

 

(57) Abstract:

Use: agricultural machinery, devices for irrigation of agricultural crops superficial way. The inventive device for irrigation consists of inlet water line from the water source low power, storage capacity, flood gates in the form of a double chamber valve with an elastic membrane, the mechanism of control of the discharge of water and irrigation conduit. The control mechanism made in the form of small diameter siphon connected to the ascending branch with capacity and floodgate, and the descending branch of the atmosphere. 4 Il.

The invention relates to agriculture and can be used for irrigation of agricultural crops in furrows and lines, as well as when pasture and water.

A device for irrigation, including water-lifting mechanism in the form of airlift discharge and irrigation water lines, storage capacity, equipped with a siphon, and a switching mechanism that is hydraulically connected with the tank and siphon [1]

A disadvantage of the known devices for irrigation is low operational reliability of the device.

The closest technical is, cumulative capacity with transfer siphon connected with irrigation conduit and provided with a charger, switching mechanism, hydraulically associated with capacity, tipping bucket and managing siphon, the lower edge of which is not below the lower edge of the suction transfer siphon [2]

A disadvantage of the known devices for irrigation are the complexity and low reliability of his work: install transfer siphon as oporornis cumulative capacity does not allow you to modify the maximum filling capacity; not reliable design of the charger; high intensity of controls.

The aim of the invention is to simplify the construction and increase operational reliability and reduce material consumption device.

The objective is achieved by the fact that the floodgate is made in the form of a double chamber valve consisting of a body with a saddle inlet and outlet openings, a cover and an elastic membrane, and a mechanism for controlling the discharge of water in the form of small diameter siphon, the rising branch of which is connected with the working chamber of the floodgate (the space between the cover and the elastic membrane), and nisho communication arranged vertically one above the other, the upper channel is throttled and is located at the level of the minimum allowable discharge, and szeliga siphon set at the maximum filling capacity.

Comparative analysis of the prototype shows that the proposed device is design floodgate, when instead of a siphon installed valve, and mechanism design of the control valve, in which instead of the siphon, rocking, relationships, and the charger has only one small diameter siphon connected with the capacity of two channels, one of which, the top, throttled, and the siphon is connected at one end with the valve, and the other with the atmosphere. The combination of the above features will provide a positive effect in improving the operational reliability of the device and reduce its consumption of materials. Thus, the proposed device complies with the criteria of the invention of "Novelty."

Analysis of the known technical solutions in the study area showed no signs of significant distinguishing features of the claimed object, which allows to conclude that the criterion of "Substantial excellent is still water in the furrow, General view of Fig.2 is the same, in the process of filling the storage tank, General view; Fig.3 is the same, at the moment of reaching the water level maximum filling capacity and operation of flood gates, activate the siphon, the opening of the outlet of the culvert and the beginning of the water flow in furrows, General view; Fig.4 is the same, at the moment of reaching the water level to its minimum value, i.e., the minimum allowable discharge of the storage tank siphon is discharged, the valve closes, the water flow in furrows stops, starts filling the tank.

Device for irrigation consists of the accumulation tank 1, having a bottom discharge opening, equipped with a nozzle 2; a connecting conduit 3, or without it, floodgate 4 in the form of a double chamber valve, comprising a housing 5 with the inlet 6 and outlet 7 holes, saddle 8, a cover 9 having a drain hole 10 and the elastic membrane 11; irrigation conduit 12 with outlets 13 opposite the irrigation furrows 14; inlet conduit 15, the water inlet 16 a constant small flow qconstthe holding tank 1; the control mechanism of the discharge of water, including the siphon 17 that the descending branch 18 is connected with the atmosphere, and the ascending branch 19 spallogenic one above the other, the upper channel 20 sitosterolin and is located at the level of the minimum filling the tank 1, and szeliga 22 of the siphon 17 is set at the maximum (or estimated) filling the tank 1. The top elevation of the pipe 2 discharge hole is located vertically between the levels of the input holes of the hydraulic channels 20 and 21 links.

The principle of operation of the device for irrigation is as follows.

From the inlet conduit 15 from any water source low power, such as airlift, hydracarina or so on the holding tank 1 low flow qconstconstantly sprayed with water 16. When the flow of water 16 in the still empty receptacle 1 (Fig.1) is first of its spreading over the surface of the bottom of the tank. Gradually, with the filling of the tank 1, the water level reaches the inlet of the hydraulic communication channel 21, and the water flowing through the channel 21, begins to fill the space in the lower part of the ascending branch 19 of the siphon 17. At the same time through the drain hole 10 floodgate 4 is filled with the working chamber of the floodgate 4 the space between the cover 9 and the flexible membrane 11. As the filling of the working chamber being stretched, the membrane 11 is pressed against the seat 8. Because vihodnoi part of the hydraulic channel 20 and until the water level in the tank reaches the edge of the socket 2, the pressure on the membrane 11 will be one-way only from the side of the working chamber. This ensures tight closing of the orifice uncovered 8 from the start of operation of the device. When the water level of the upper edges of the socket 2, the water will start flowing in the pipe 2, then through the connecting conduit 3 to the inlet 6 of the floodgate 4 and fill it (Fig.2).

Since the pressure on both sides of the membrane 11 of the same law of communicating vessels, but the area of impact of the head is different (the surface of the diaphragm 11 a lot more than the seat area 8), the membrane 11 remains pressed against the seat 8, but now with a force proportional to the difference of the squares of the membrane 11 and the seat 8. This force is sufficient to prevent leaks in the floodgate 4 whenever the water level in the tank 1. The floodgate 4 is closed, there is a filling of the tank 1 and the rise of the water level in it.

Filling the tank 1, the water level reaches the maximum allowable filling YBmaxor estimated (Fig.3). At the same time the water level in the siphon 17 reaches seligi 22 located at the same level, and will begin to flow in the descending branch 18. In view of the small diameter siphon (about 6-10 mm) and curved shape in its upper part charging the siphon 17 is but below the level floodgate 4, virtually connects the working chamber of the floodgate 4 with the atmosphere, creating it almost zero pressure. The pressure on the membrane 11 from the side of the saddle 8 floodgate 4 reaches its maximum value and force overcomes the elastic membrane 11, tearing her from the seat 8. The floodgate 4 is triggered, opens. Water flow Qdixrushes to the outlet 7 of the floodgate 4 and further along the irrigation conduit 12 to 13 culverts, of which comes in irrigation furrows 14. The flow of water from the outlet of the descending branch 18 of the steering siphon 17, also coming to the nearby grooves 14 exceeds the bandwidth of the hydraulic channels 20 and 21, but below the incoming flow qconst, because the discharged flow Qdisignificantly (by one to two orders of magnitude) greater than the incoming water level in the tank 1 starts to fall sharply and reaches its lowest level YBmin(Fig.4). On this level there is a hydraulic sitosterolemia channel 20, the purpose of which capture air and vacuum breakdown in the ascending line 19 governing siphon 17. Capturing a portion of air from the channel 20, the siphon 17 is discharged and the water level in the ascending line 19 is set equal to the initial level vidiot drain holes 10 and presses it to the saddle 8. The floodgate 4 is closed. Access water from the tank 1 during the irrigation conduit 12 is stopped. Capacity 1 starts again be filled, the water level in the tank 1 and the siphon 17 rises. The operation of the device for irrigation with discrete water in furrows is repeated (see Fig.2).

Changing the position of seligi 22 managing siphon 17 allows you to vary the amount of filling of the container 1, and hence the time of drawdown of the floodgate 4, i.e., frequency of water supply.

DEVICE FOR IRRIGATION, including supply and irrigation conduits, storage capacity, floodgate and a mechanism for controlling the discharge of water, characterized in that the floodgate is the case with the saddle inlet and outlet openings, the lid with a spout opening and the membrane to overlap the inlet, and a control mechanism floodgate made in the form of small diameter siphon, the rising branch of which is connected with the working chamber of the floodgate, and descending with the atmosphere at a level below the floodgate, and siphon the ascending branch is associated with the capacity of two communication channels, arranged one above the other, the upper channel is throttled and is located at the level of the minimum allowable discharge, szeliga siphon set at the maximum is amok which is located between the communication channels.

 

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