SU1348782A1 - Arrangement for regulating water level in irrigation systems - Google Patents

Abstract

The invention relates to agriculture and can be used to regulate the level of water in irrigation canals equipped with regulating hydraulic structures. A device for adjusting the water level in irrigation systems contains a shutter installed in outlet 2 in the form of a flexible shell 1. The cavity of the flexible shell 1 communicates with the upper tailpipe inlet 3, and the downstream first 4 and second 5 outlets. The device contains a float level sensor 6, a valve 7 mounted on the first outlet 4, a tank 8 with a drain 9 and a pipe 10. Included in the valve device 13 mounted on the second outlet 5 and communicated with the tank 8 which is located at the maximum mark A given downstream level in the closed position of the valve 13 makes it possible to increase the net volume of water in the downstream to accumulate a portion of the excess water flow from the upstream. 1 il. - SS SL B5max Ya ..1 / 72 oo 4 00 oo y

Description

 with . V. with to with

the position of the valve 13. The cross-section of the inlet pipe 3 is smaller than the total working section of the outlet pipes 4 and 5,

The device works as follows

In the initial state, when the water level in the upstream of the tubular outlet 2 does not reach the maximum mark Hgg ,, water does not flow into the tank 8 with the drain hole 9, the tank 8 is empty, the weight of the counterweight 11 is greater than the weight of the empty tank 8 Tin counterweight 1I, the valve 12 is closed, and the device functions as a downstream level control. When the level of the lower reach exceeds the set point, the valve 7 closes, the outflow of water through the first outlet nozzle 4 stops. The cavity of the flexible shell 1 is filled

The invention relates to agriculture and can be used to regulate water levels in irrigation canals equipped with regulating hydraulic structures,

The invention is an increase in the useful volume of water in the downstream to accumulate part of the excess water flow from the upstream.

The drawing shows the proposed device.

The device includes a shutter, made B as a flexible shell I installed inside the tubular outlet 2, the shell cavity is connected to the upper pool by inlet pipe 3, and to the lower one by the first 4 and second 5 outlet pipes. Us

The device contains a float sensor 6 level, installed on the first outlet pipe 4 and connected to the valve 7, the device contains a tank 8 with a drain hole 9 installed in the downstream and inlet pipe 10 to the upstream, Capacity 8 by means of a cable-block system kinematically connected engaged with a counterweight II. The end face 12 of the pipeline 10 is located at a predetermined level of the upper level of the Hgg pool. The tank 8 is connected to the valve 13. mounted on the second outlet nozzle 5, and is located at the maximum elevation of the predetermined level of the lower reach N in the closed

water and closes the tubular water discharge 2, with the result that the outflow of water decreases, causing a drop in the water level in the downstream. If the water level in the downstream becomes lower than the target, valve 7 opens and water is discharged through the first outlet 4 from the cavity of the flexible casing 1 to the lower reach, as a result of which the outflow of water from the flexible casing becomes higher than the inflow. The flexible shell I, emptying, is deformed and opens the tubular outlet 2, which increases the flow of water into the lower pool, causing an increase in the level of o.

about

When the level of the upper reaches of the maximum mark H,

five

0

five

at. 5 IU COP

water flowing over end 12 of conduit 10,. enters the tank

8. Due to the fact that the flow of water from its outflow through the drain hole 9, the tank 8 is filled with water. When the weight of the tank 8 with water is greater than the weight of the counterweight II, the valve 13 opens. The water through the second nozzle 5 is discharged from the flexible sheath 1 to the lower pool. The bending sheath 1 is empty, deformed, and the e-1 heel opening 2 is deformed, as a result of which the water inflow increases

downstream. The water level in the downstream is new. Provided the channel is overfilled and the water reaches its maximum level in the downstream. due to lowering

0 of the tank 8 into the water, the weight of the counterweight I1 becomes greater than the weight of the tank 8 with water, and the valve 13 under the influence of the counterweight 11 is closed (at the moment when the water level in the lower

5 of the specified value, valve 7 (closed). The outflow of water from the first advantageous pipe 4 stops, the flexible sheath I is filled with water and closes the tubular outlet

0 2, the flow of water through which decreases, which causes a decrease in the level of water in the downstream. When the water level drops in the pools of the device below the levels and

5 due to the cessation of water supply through the pipeline 10, the tank 8 is emptied through the drain hole

9, and the device returns to its original state.

31

Claims (1)

Invention Formula A device for adjusting the level of water in irrigation systems, containing a shutter installed in the water outlet, made in the form of a flexible shell, the cavity of which is connected to the upper and lower pools respectively the inlet pipe and the first and second outlet pipes on the first pool an outlet nozzle and a tank connected to the valve, located in the downstream and connected to the upstream side by a tank with a drain hole. Editor A. Makovska Compiled by T. Zgschvornna Tehred A. Kravchuk Proofreader L, Patay Order 5188/46 Circulation 862 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 48782 kinematically connected with the counterweight, the end of the pipeline is located at a predetermined level of the upper reach, the inlet section is smaller than the total operating section of the outlet nozzles, characterized in that, in order to increase the useful volume of water and 10 downstream, to accumulate part of the excess water flow from upstream, the device contains a valve installed on the second outlet nozzle and connected to a tank 15 which is located at the maximum mark of a given downstream level in the closed position valve.