SU1053069A2 - Device for control of water level in irrigational system - Google Patents

Abstract

DEVICE FOR REGULATION OF WATER LEVELS IN IRRIGMS SYSTEMS; BY auth. Ev, No. 809086, distinguishes it with the fact that, in order to increase reliability by preventing the upstream from being emptied, it contains a tank with a drain hole connected to the downstream float valve and connected to one of the shoulders mounted on a horizontal axis rotation of the lever, the other arm of which is equipped with a counterweight, the tank communicating with the headwater pipe, the end of which is located at the minimum level of the headwater, and the cross section of the pipeline is larger than the cross section of the drain hole.

Description

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ko The device relates to hydraulic engineering and can be used to regulate water levels in irrigation systems equipped with tubular outlets. Axis axis auth. No. 809086, an automatic water level regulator is known, comprising a shutter made in the form of a flexible casing connected to the upper and lower pools, respectively (1t the inlet and outlet connections provided with float valves. The flexible casing is provided with a drain hole, cross-sectional area which is smaller than the cross-sectional area of the inlet nozzle, respectively, of a smaller cross-sectional area of the outlet nozzle. However, the known device does not protect the upstream from command losses during water shortages. the unacceptable position of the upstream, a complete cessation of supply to high-level outlets and a significant disruption of the technological process in the redistribution. As a result, the most highly located land plots turn out to be non-water and the productivity of agricultural crops drops sharply. by preventing the headwater from being emptied, the goal is achieved by entering the device according to auth. No. 809086, contains a tank with a drain hole, connected to the downstream float valve and connected to one of the lever mounted on the horizontal axis of rotation, the other arm of which is fitted with a counterweight, and the tank is connected to the upstream pipeline with the torus located at the level of the level below downstream, and the cross section of the pipeline is larger than the cross section of the drain hole. . The drawing schematically shows the proposed device. The device includes a container of flexible sheath 1 fixed inside a tubular water outlet 2. The flexible sheath 1 has an inlet 3 and an outlet 4 nozzles and a drain hole 5. The nozzle 3 is connected to 069 2. a float valve 6 installed in the upstream, and a nozzle 4 with a float valve 7 installed in the downstream. The downstream float valve 7 is connected to a tank 8 with a drain hole 9. A tank 8 is connected by a pipe 10 to an upstream pool, and the end 11 of the pipe 10 is set at the minimum level of the upstream. The float valve 8 is attached by a thrust 12 to the lever 13, on the other arm of which a counterweight 14 is fixed. The device operates as follows. If the upper reach is emptied below the installation of the end 11 of the pipeline 10, the water stops flowing to 8, which is empty through the drain hole 9. The total weight of the float valve 7 and the tank 8 decreases sharply, as a result of which the lever 13 moves under the pressure of the counterweight J4 together with it, a ha 12 and a float valve 7, which blocks the outflow of water through the nozzle 4. The flexible casing 1 is filled with water as a result, blocking the outflow of water from the upstream. When the water level in the upstream reaches, water enters pipeline 10, fills tank 8. At the same time, the weight of the counterweight 14 is balanced by the weight of tank 8, which together cease to influence the normal operation of the float valve, which now moves depending on the upstream and downstream, adjusting the water level in it. Thus, due to a combination of new structural elements: a supplementary pipe 0 of the tank 8 with a drain hole 9, a lever 13 of the lever 13 with a counterweight 14 and their corresponding connection, the upper reach of the channel is prevented from being emptied. This allows for automatic water distribution during periods of water shortage, significantly increasing the productivity of staff, as there is no need to sequentially shut off individual water outlets in order to maintain command and control. Automation

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The water distribution process during the period ultimately influences the harvest of water deficits and increases the accuracy of agricultural cultivation of irrigation plans that the tour provides.

Claims (1)

DEVICE FOR REGULATING WATER LEVELS IN IRRIGATION SYSTEMS _; by author St. No. 809086 distinguishes it by the fact that, in order to increase reliability by preventing the upstream downstream from emptying, it contains a tank with a drain hole connected to the downstream float valve and connected to one of the arms mounted on the horizontal axis of rotation of the lever, the other arm of which is provided with a counterbalance, the tank being in communication with the upper pool by a pipeline, the end of which is located at the mark of the minimum level of the upper pool, and the pipeline section is larger than the drain hole section.