RU2032318C1 - Device for the automatic water supply to the irrigating system - Google Patents

Abstract

FIELD: agriculture. SUBSTANCE: device has a reservoir for water, drain and input branch pipes, a cut-off organ mounted in the reservoir and a balance beam with an evaporator and a controlling load on its ends. The controlling load is located in the upper part of the reservoir. The cut-off organ is a floating labyrinth chamber whose cavity is connected with that of the reservoir through the input channel and with the drain branch pipe through the output channel. The labyrinth chamber can swing along the reservoir height and contact the controlling load. EFFECT: facilitated maintenance of the device, greater susceptibility to the necessity of irrigation. 1 cl, 1 dwg

Description

 The invention relates to agriculture and can be used to supply water to irrigation systems and irrigation systems of gardens.

 A device for automatic water supply to an irrigation system containing a water tank with a drain pipe closed by a plug connected through a linkage with a beam, at the ends of which an evaporation tray and a control load are selected, is selected as a prototype.

 The disadvantage of this device is the need for significant efforts to open the drain plug, since this requires overcoming the pressure of the water column equal to the height of the water level in the tank.

 To obtain sufficient force to open the plug, it is necessary to evaporate a large amount of water from the evaporation tray, which leads to large time intervals between two irrigation.

 In addition, when the cork is opened at the same time as the water is discharged into the irrigation system, the evaporation tray begins to fill up through a special tube, which, in turn, will lead to the gradual closure of the cork, i.e. water consumption during irrigation is constantly decreasing.

 This makes it difficult to regulate the device, reduces the sensitivity to the need for watering, i.e. narrows its operational capabilities.

 The aim of the invention is to facilitate maintenance of the device and increase sensitivity to the need for watering.

 This goal is achieved by the fact that in the device containing the water tank with a drain pipe, a shut-off element installed in the tank, and a rocker arm, at the ends of which an evaporator and control load are placed, according to the invention, the control load is placed in the upper part of the tank, and the shut-off element is made in the form of a floating labyrinth chamber with input and output channels installed with the possibility of swinging along the height of the tank and in contact with the control weight in its upper position, while the cavity of the labyrinth chamber oedinena through the inlet channel with the cavity of the tank and through an output channel with a drain pipe. In this case, the evaporator is equipped with a tray for collecting rainwater.

 If the labyrinth chamber is not filled with water, then it is afloat and does not pass water from the tank, and if water enters the labyrinth chamber, then it loses buoyancy, drowns and does not impede the flow of water from the tank. The buoyancy of the labyrinth chamber can be adjusted in such a way that a little effort from the control load is enough to get water into it.

 The drawing shows a General view of the device.

 The device comprises a water tank 1 with an inlet 2 and a drain 3 nozzles and a shut-off element installed inside the tank. On the side wall of the tank in its upper part, a rocker 4 is mounted on a hinge, at one end of which a control load 5 is installed, and on the other is an evaporator.

 The evaporator consists of an evaporation chamber 6 with a crossbar 7 mounted on its side walls, on which batiste wicks 8 are fixed.

 The locking member 8 is a labyrinth chamber 11 having an input channel 9 and an output channel 10. The output channel 10 is connected to the drain pipe 3 by means of a flexible hose 12, so that the locking element has the ability to swing in a vertical plane with extreme positions on the bottom of the tank and in its upper part, where the labyrinth chamber 11 is in contact with the control load 5.

 A float valve 13 is installed on the inlet pipe 2. A pipe 14 is allocated from the lower part of the drain pipe 3 to fill the evaporator.

 The evaporator has a tray 15 for collecting rainwater, which also flows into it. In the side wall of the evaporation chamber 6 there are openings 16 for draining excess water from it.

 In the upper part of the tank 1 there is a limiter 17 for the position of the control load 5.

 The device operates as follows. In the initial position, the tank 1 is empty, the labyrinth chamber 11 is in the lower position (shown by a dotted line), the evaporation chamber 6 is filled with water to a predetermined level and outweighs the load 5, which in the initial position rests against the stopper 17.

 When filling the tank 1 with water through the inlet pipe 2 and the float valve 13, the cavity "a" of the labyrinth chamber 11 will not be filled with water due to the fact that its buoyancy is adjusted so that the upper part of the inlet channel 9 is above the liquid level, therefore, remaining on the surface water, the labyrinth chamber will block the drain pipe 3.

 The cessation of water supply to the tank 1 is provided by a float valve 13, which can be adjusted so that the water level is, with a sufficient degree of accuracy, such that the labyrinth chamber 11 is within the reach of the control load 5.

 As water evaporates from the evaporation chamber 6, its weight decreases. As a result, the rocker 4 turns, the load 5, acting on the labyrinth chamber 11, forcibly fills it so that the upper part of the inlet channel 9 is below the water level in the tank 1. Water flows into the cavity “a” of the labyrinth chamber 11, under the action of its weight, the shut-off the organ loses buoyancy and falls to a lower position. Under the influence of water pressure in the tank, it will begin to flow through the labyrinth chamber 11, the outlet channel 10 and the connecting flexible hose 12 to the drain pipe 3. All water is drained from the tank 1, for example, into an irrigation or any other distribution system 18. Air trapped between the remaining water in the irrigation system and a new portion of the confluent water is discharged through the pipe 14. Since the upper part of this pipe is below the upper water level in the tank 1, at the beginning of the discharge part of the water will flow through it into the evaporation chamber ru 6 and fill it to a given level. In this case, excess water from the evaporation chamber is removed through openings 16.

 At the end of the discharge of water from the tank 1, its residues are removed from the cavity "a" of the labyrinth chamber 11 due to the siphon effect created by the drain pipe 3.

 After lowering the water level in the tank 1, the float valve will open and begin to supply the next portion of water. In order for there to be a complete discharge of water from the tank 1, the flow rate of water going to the drain through the pipe 3 should be significantly greater than the flowing water flow through the float valve 13.

 After emptying the labyrinth chamber 11, the system returns to its original position, and the cycle repeats.

 The inclusion of water drainage can be blocked by replenishing the evaporation chamber 6 with rainwater collected by the tray 15.

 Since the effort to heat the labyrinth chamber 11 is controlled by a change in its buoyancy, it can be set to a much lower value than what is required to raise the drain plug in the prototype, where it is necessary to overcome the pressure of the water column in the tank.

 The system has the ability to control the time interval between drains of water from the tank by changing the shoulder application weight of the evaporation chamber.

 Thus, the proposed design provides significant ease of maintenance of the device, and also has a greater sensitivity to watering compared to the prototype, which is required, for example, when growing moisture-loving crops.

Claims (2)

 1. DEVICE FOR AUTOMATIC WATER SUPPLY TO THE IRRIGATING SYSTEM, comprising a water tank with a drain pipe, a shut-off element installed in the tank, and a rocker arm, at the ends of which an evaporator and control load are placed, characterized in that the end of the rocker arm with the control load is placed in the upper parts of the tank, and the shut-off element is made in the form of a floating labyrinth chamber with inlet and outlet channels, mounted to move along the height of the tank and contact with the control load in its upper part position, while the cavity of the labyrinth chamber is communicated through the inlet channel with the cavity of the tank, and the output channel is connected to the drain pipe.  2. The device according to claim 1, characterized in that the evaporator is equipped with a tray for collecting rainwater.

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