SU976429A1 - Device for adjusting water level in irrigation system - Google Patents

Description

The invention relates to the construction of water treatment facilities for irrigation systems, and in particular, to structures for maintaining constant _g water horizons in the downstream of tubular structures, and ₅ can be used in the water industry to automate the water distribution process.

A device is known for the automatic regulation of water horizons in down-waters, in which the shutter is made in the form of a flexible shell - an elastic chamber [1].

A device is also known in which on the upper part of the elastic locking chamber installed inside the spillway with 15 Hydraulic threshold, sealing half rings and holes are placed, one of which connects the elastic chamber through the pipe to the atmosphere, and the other two located in the lower part of the chamber connect it respectively with. upstream and through a pipeline with a sensor valve in the downstream f 2].

In this device, water is transferred from the upper pool to the locking elastic chamber, and from it to the lower pool, which leads to a gradual siltation of the chamber and structural failure. In addition, due to the loss of pressure at the inlet, the elastic locking chamber does not fit snugly around the perimeter of the pipe, which leads to a loss of flow through the pipe.

The purpose of the invention is to increase the reliability and accuracy of the device.

This goal is achieved by the fact that in the device for regulating the water level in irrigation systems, comprising a water outlet installed between the upper and lower pools, a locking elastic chamber, supply and exhaust pipelines, a level sensor connected to a valve installed on the drain piping, contains -. pressurized tank, the base of which is communicated through the supply pipe.

'676420 with the upper pool, from the water outlet to the lower pool, and its air cavity is connected to the cavity of the locking elastic chamber, and the base of the sealed tank is installed below the base of the water outlet and is made in the form of a truncated cone, facing a smaller base to the inlet and outlet pipelines .

In addition, the diameter of the under-10 water pipeline is less than the diameter of the lower base of the cone, the value of which is less than the diameter of the branch pipe.

In FIG. 1 shows the proposed; device; in FIG. 2 - same, plan view.

the chamber 4 is connected by air8 with an airtight chamber which has a cone 10, at the bottom there is an outlet .11,

The device consists of an upper pool, the level at which varies or may mark 1 to min mark 2, blocking the wall 3, at the bottom of which there is a water outlet with an elastic locking chamber '4, fixed by a bandage 5 along the perimeter of the outlet 6. Water flows through the outlet 6 outlet 7. Elastic shut-off wire by the tank 9, which is connected through the pipe 12 of the outlet with the valve 13 of the level sensor 14. The supply pipe 15 connects the upper pool to the cone hole 11. Moreover, the diameter of the supply pipe 15 should be less than the diameter of the inlet 11, which in turn should be less than the diameter of the discharge pipe 12, which allows water to be discharged from the air-tight seal 9. Mark level can change the level that the given elevator mark 17.

him of the biofuel, air-tight tank 9 is filled up to mark 18.

A device for regulating the water level in tubular structures works as follows ..

Before filling the channel with water, the float of the sensor 14 is set to a predetermined level, opening the valve 13 hole 19 of the pipe 12 of the outlet.

As the level of the upper pool increases, which reaches the level of 1, the culvert hole 7 of the water outlet 6 begins to discharge the flow rate into the outlet in the lower pool, thanks to the sensor 14, it is installed on the screw with a lock. When the level rises above channel 15, the level in it begins to grow. In addition, at the same time the air-tight tank 9 is filled to level 18 and air is compressed in it. There is a flow of compressed air through the air duct 8 into the elastic locking chamber 4, which closes the culvert hole 7 of the water outlet 6. The level 16 in the downstream lowers, the valve 13 of the sensor 14 opens the hole 19 of the exhaust pipe 12. In the supply pipe 15, the airtight tank 9 is emptied, the level 18 decreases, air flows from the elastic closure chamber 4 through the air pipe 8, the culvert hole 7 opens, the level in the tap starts to increase, the process repeats. To change the level mark 16, the float of the sensor 14 can be moved with the help of a helical elevator 1 7.

The presence of a closed cycle for the flow of air from the air tank into the elastic locking chamber and vice versa does not require additional devices for starting, which reduces operating costs for cleaning sediment from the locking elastic chamber. The presence of a conical section in an airtight airtight tank reduces its siltation, increases the reliability of work, and reduces labor and time spent on maintenance. preventive work. In addition, the use of compressed air as a filler allows you to extend the operational period and not carry out conservation of the swarm for the winter period.

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Claims (2)

The invention relates to the construction of irrigation systems, namely, structures for maintaining constant levels of water in the downstream tubular structures, and can be used in the water industry to automate the process of water distribution. A device is known for automatically regutting the water horizons in pools, in which the closure is made in the form of a flexible shell — an elastic chamber 1. It is also known a device in which on the upper part of an elastic closure chamber installed inside a weir with 1 hydraulic threshold, are placed semi-rings and holes , one of the KOTOpbix connects the elastic chamber through the nozzle to the atmosphere, and the other two, located in the lower part of the chamber, connect it respectively to. downstream and through a pipeline with a sensor valve downstream 2. In this device, water flows from the upper pool to the elastic shut-off chamber, and from it to the lower pool, which leads to the gradual siltation of the chamber and the construction of the structure. In addition, due to the loss of pressure at the inlet, the elastic shut-off chamber is loose around the perimeter of the pipe, which leads to a loss of flow through the pipe. The purpose of the invention is to improve the reliability and accuracy of the device. The goal is achieved by the fact that in a device for regulating the level of water in irrigation systems, comprising a water outlet installed between the upper and lower pools, a shut-off elastic chamber located in it, supply and drain pipelines, a level sensor associated with a valve installed on the drain pipeline, Contents the life of the hermetic tank, the base of which is communicated through the supply pipeline. with the upper reach, through the o-water pipeline - with the kyukni tail, and its air cavity is connected to the cavity of the shut-off elastic chamber; In addition, the diameter of the pipeline under water is less than the diameter of the lower base of the cone, the magnitude of which is less than the diameter of the pipe of the outlet. FIG. 1 shows the proposed; device; in fig. 2 - the same plan view. The device mocks from the upper pool a level in which ranges from wax marks 1 to 1 meter to 2, partitioning the wall 3, at the bottom of which there is a water outlet with an elastic shut-off chamber 4 fixed by a band 5 around the perimeter of the water outlet 6. Water flows out through the outlet 6 through the outlet 7. The elastic shut-off chamber 4 is connected by an air duct 8 to an airtight air tank 9, which has a cone 1O, at the bottom of which there is an outlet opening .11 connecting through pipe 12 from. water with valve 13 sensor 14 level. The inlet pipeline 15 connects the upstream from the cone 11 orifice. Moreover, the inlet pipeline 15 must be smaller than the diameter of the inlet 11, which in turn must be smaller than the diameter of the outlet pipeline 12, which allows water to be thrown from the airtight tank 9 The level mark 16 in the downstream can be changed due to the level sensor 14, which is set to a predetermined mark with a screw. 17. When lifting the upstream level, the airtight sealed tank 9 is filled to the mark 18. The device for adjusting the water level at the tubular structures works as follows .. Before filling the channel with water, the float of the sensor 14 is set to a predetermined level by opening the pipe 13 with the valve 13 12 tap. As the level of the upstream reaches the level of 1, the outlet port 7 of the outlet 6 begins to discharge the flow to the outlet channel, the level in it begins to grow. In addition, at the same time, the air-tight tank 9 is filled to levels 18 and air is compressed in it. Compressed air flows through the air duct 8 into the elastic shut-off chamber 4, which closes the culvert 7 of the military air outlet 6. The level 16 in the lower pool decreases, the valve 13 of the sensor 14 opens the hole 19 of the exhaust duct 12. In the supply line 15, the air-tight tank 9 is emptied, the level 18 is lowered, air flows from the elastic shut-off chamber 4 through the air line 8, the culvert opening 7 is opened, the level in the outlet begins to grow, and the process repeats. To change the level of the adjustable level 16, the float of the sensor 14 can be moved using a screw elevator 1 7. The presence of a closed loop. The flow of air from the air tank to the epastic shut-off chamber and back does not require additional devices for starting, reduces the operating costs of cleaning sediment from shut-off elastic chamber. The presence of a conical section in an airtight air tank reduces its siltation, increases the reliability of work and reduces the labor costs and time spent on P1.conduct of preventive works. In addition, the use of compressed air as a filler allows you to extend the operating period and not to preserve the device for the winter period. The formula of the image of the grid 1. A device for adjusting the water level in irrigation systems, comprising a water outlet installed between the upper and lower pools, a shut-off elastic chamber located in it, supply and drain pipelines, a level sensor connected to a valve installed on the drain pipeline, characterized in that, in order to increase the reliability and accuracy of the device, it contains a gertical tank, the base of which is communicated through the supply line with the upper reach, through the withdrawal pipeline - with the lower reach, and its usna cavity is connected with the cavity of the locking elastic chamber, br kovashsh sealed tank installed below the base and holds the overflow in vnde truncated cone, facing a smaller base to the pipelines inlet to the outlet. 2. The device according to claim 1, characterized in that the diameter of the pipeline is less than the diameter of the lower base of the cone, the value of which is less than the diameter of the pipeline outlet. Sources of information in the form taken by the expert 1. USSR Author's Certificate No. 557142, cl. E O2 B 13 / O2, 1976. 2. USSR author's certificate number 477399, cl. in the EC 9/02, 1975 (prototype). Fig1