SU1298304A1 - Irrigation water outlet - Google Patents

Abstract

The invention relates to hydraulic engineering and can be used in rice irrigation systems. The purpose of the invention is to increase the reliability and reduce the material consumption of the water supply. The check outflow contains a water outlet pipe 1 with a shaft head 2. In the lower part of the front wall 5, the head 2 has a round hole 6. A coaxial hole 6 is fitted with an elastic shutter 10 fixed to the impulse pipe 11. The cavity of the closure 10 is connected through the impulse pipe 11 to the upper beef 3 and the downstream (NB) 4. The end of the tube 11 is connected to the sensor 13 of the level NB 4. The upper edge 7 of the front wall 5 of the shaft top 2 is located between the normal level and the forced level 9 of the upper, pool 3. Vodovtusk has two odo- vtuskngh openings, one of which is included in the work during initial flooding HB 4 by po- vsheni layer 3 upstream, and the throughput of the second layer to maintain the NB mode, the gate 10 4 is controlled depending on the level 4. NB 2 yl. c (L C 11 q P

Description

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The invention relates to hydraulic engineering and can be used for water distribution on rice irrigation systems.

The purpose of the invention is to increase the reliability and reduce the material output of the outlet.

Figure 1 shows a diagram of the operation of the outlets in the mode of the initial flooding of the downstream; Figure 2 - the same, in the state of maintaining the downstream level.

The check vodovtusk contains a water outlet pipe 1 with a shaft tip 2 connecting the upper pool 3 with the lower pool 4. In the lower part of the front wall 5 of the shaft tip 2 a circular hole 6 is made, and the upper edge 7 of the front wall 5 is located between the normal level 8 and forced level 9 upstream 3. Along the circular opening 6 in head 2, an elastic shutter 10 is installed, made in the form of a cone facing the base towards the downstream 4, and fixed on the impulse tube 11, which penetrates it and communicates with its cavity. One end of the pulse tube 11 is brought into the upper reach 3 and attached to the wall 5 by means of a bracket 12, and its other end is connected to the sensor 13 of the lower reach 4.

Check vodovtusk works as follows.

During the initial flooding of the lower reach 4 (Fig.}), The forced level 9 is established in the upper reach 3 to reduce the flooding time. Water flows through the upper edge 7 of the wall 5 into the shaft head 2 and enters the lower reach 4. Simultaneously in the head 2, the water enters through the hole 6. Since the water level in the lower pool 4 below the predetermined valve of the sensor 13 is open and the water through the pulse pipe 11 flows into the lower pool 4. At the end of the initial

In the initial flooding, the upstream level 3 is lowered to normal and the outflow is placed in the downstream level 4.

In the level keeping mode (Fig. 2), a predetermined layer of water is established in the downstream 4. The valve of the sensor 13 is closed, stopping the outflow of water through the pulse tube 11 from the cavity of the shutter 10. The pressure in the elastic shutter 10 increases due to which it increases in volume and closes the opening 6, completely stopping the flow of water into the downstream 4. When the downstream 4 is lowered the sensor 13 is partially opened, together with the cavity of the shutter 10 and the downstream 4. The pressure in the elastic shutter 10 decreases and under the water pressure of the upstream 3 the shutter 10 is deformed, increasing the volume of the hot water outlet.

Claims (1)

Invention Formula Check vodovtusk, including connecting the upper and lower tails water outlet pipe with a shaft top located in the upper reach, a valve made of elastic material, a pulse pipe connected to the cavity of the gate and penetrating it the body, one end of which is led to the upper reach, and the other is connected to the downstream level sensor, which is due to the fact that, in order to increase reliability and reduce material consumption, there is a round hole in the lower part of the front wall of the shaft head and the upper edge of the wall located between normal and forced The levels of the upper pool, while the valve is made in the form of a cone with the base facing the lower pool, mounted on a pulse tube and mounted coaxially with a round hole in the head. 38 57 01 1 11 li / j Editor N. Bobkova Compiled by L.Denisov Tehred N.Glushchenko Order 867/29 Circulation 607 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Project St.,; i4 Corrector; I.Muska