SU589332A1 - Device for controlling water levels in water races of hydraulic structures - Google Patents

Description

(54) DEVICE FOR REGULATION

WATER LEVELS IN HYDRAULIC ELEMENTS

The invention relates to the region of flpoTex and can be used on irrigation systems.

A device for adjusting the water level is known, including a zero gate connected by means of a pipeline with a source of compressed air to float gauges of the level of the pools of the hydraulic facility 1.

The closest to the proposed is a device for adjusting the level of water at water installations, including a rotating hollow gate, equipped with a vacuum generator, providing the filling of the gate with water and a valve that is hydraulically connected to the membrane sensor 2.

A disadvantage of this device is its failure to operate when exiting the membrane.

The aim of the invention is to reduce the number of failures in the operation of the device and increase its reliability.

This is achieved by using a tank installed in the cavity of the shutter and provided with a pump-down siphon, the tank being in communication with the upper pool, the cavity of the shutter and the atmosphere.

The drawing shows a device for adjusting the level of water in the pools, general view and section A - A.

On the horizontal axis 1, a fixed gate 2 is installed, the cavity 3 of which is connected by openings 4 and 5 with the upper and lower tails of the structure. Air from the vacuum generator mount enters the cavity of the gate through pipeline 6 and can escape to the atmosphere through pipe 7, blocked by a membrane 8, controlled through a tee 9 through hydraulic channels 10 and 11 by level sensors 12 and 13, equipped with membranes 14 and 15. Screws 16 and 17 are for

0 changes to supported levels. A siphon 18 is installed in the closure, the inlet 19 of which is located in the box 20 communicated with the headwater. The vacuum tube 21 is adapted to change the length with a screw 22. The outlet part 23 of the siphon

5 communicates its cavities with the lower reach, and the suction tube 24 - with the cavity of the tank 25, communicated with an opening m. 26 with the upper reach and tubes 27, 28 with the atmosphere and the cavity of the shutter.

When raising the water level in the upper m.

0 by the pre-set sensor provides the opening of the valve and the release of air from its cavity.

Water from the cavity of the shutter under the action of the force of gravity goes into the lower reach, the weight of the shutter decreases, and it opens.

When the water level in the upstream downstream is reduced below the target, the downstream level stabilization system is activated at the downstream level sensor.

When the shutter's hydraulic control system exits, the shutter valve closes under the action of vacuum, the water level in the shutter increases, and the shutter closes the culvert opening. When the water level in the upstream reaches a higher level, a siphon, pumping out water from the additional tank and its tubes, starts to work, which will lead to the release of air from the cavity of the bolt and its opening.

The use of the device will make it possible to reduce the number of failures in the operation of the controller and increase the reliability in operation.

Claims (1)

Invention Formula A device for regulating water levels in hydropower pools, including a hollow gate, equipped with a vacuum generator and a valve, hydraulically connected to a membrane sensor, characterized in that, in order to increase reliability in operation, the device is made with a tank installed in the cavity of the gate and equipped pumping siphon, moreover, the capacity is communicated by pipes with the upper reach, the cavity of the shutter and the atmosphere. Sources of information taken into account in the examination: 1 USSR author's certificate No. 359340, cl. Е 02 В 13/02, 1970. 2 USSR author's certificate No. 379736, cl. E 02 B 13/02, 1971. Aa J t6 X 12 one,