SU809092A1 - Head water level regulator - Google Patents

Description

The invention relates to hydraulic structures and can be used on a permanent irrigation network to automatically maintain the level of the upstream, taking into account the discharge of sediment, floating objects and the complete discharge of the throughput hole when passing transit costs. The known headwater control for mountain water intake assemblies, consisting of two segmented gates, one of which is rigid and the other with the possibility of rotation, is fixed on the same axis. The design is designed so that the lower shutter is rigid, and the upper one is connected via a flexible link with a float drive located in the platform communicating with the lower bundle 1. The closest technical solution to the proposed method is a water flow regulator containing a segment shutter with a horizontal axis of rotation. and a float drive associated therewith. The disadvantages of the known constructions are the impossibility of skipping the fin and the complete discharge of the culvert span. The purpose of the invention is to improve the conditions for the simultaneous passage of bottom sediments and fin, freeing the fully live channel section, increasing the control accuracy and using the gate as a proportional divider for vertical division of water. The goal is achieved by the fact that in the device containing a container formed by fixed on the horizontal axis of rotation, the valves between which are installed are a partition and a float actuator connected to the valves of the container, the partition is made of two parts, hingedly connected to each other and with the doors, the hinge between the two portions of the partition is mounted for movement along a guide, which, in order to expand the adjustment range, is set at an angle to the bay horizon. FIG. 1 and 2 shows the proposed controller. The headwater regulator includes flaps 1 and 2 attached on a horizontal axis of rotation, a baffle 3 consisting of two parts interconnected by a hinge 4 that moves along a guide 5. The flaps and the baffle form a closed container 6. Water supply inwards the tank and outflow from it is controlled by a level sensor of the upstream, consisting of a float 7 connected to the membrane 8, which controls the membrane 10 of the outlet 11 through a pipeline 9 filled with liquid.

The float is provided with a spring-loaded shut-off valve 12, which, if necessary, opens or closes the opening 13 of the filling tube 14. A valve 15 is provided for allowing transit costs.

The proposed controller works as follows.

When the water level rises in the upstream, the float 7 moves upwards and presses the membrane 8 inwards. At this time, the membrane 10 opens the valve of the outlet opening 11. As a result, the septum is pressed inward under the action of hydrostatic pressure, water is forced out of the container, and the shutter opens until the preset level is restored. In the case of lowering the level of the upper reach against the preset valve 12 opens the opening 13 and water begins to flow into the tank 6, at the same time the valve 12 closes. will recover.

To skip transit costs, it is necessary to open the valve 15 at the discharge port. The container 6 is emptied, the pressure difference acting on the partition 3 increases, and the hinge 4 moves along the guide 5 to the inside of the container. The forces acting on the movable partition 3 are transmitted to the flaps 1 and 2. At the same time, the flap 1 lowers and the flap 2 rises. The shutter folds, releasing a live section of the channel.

At present, there are few designs of upstream level regulators that allow the simultaneous passage of sediment and fin. All other regulators allow flow from under the shield or through the shield.

they perform unsatisfactorily, in the first case, because of the accumulation of the fin before construction, in the second case, because of sedimentation of sediment.

The discharge of bottom sediments under the lower shield and the fin through the upper one dramatically increases the reliability of the entire structure. The upstream level regulator allows to pass transit costs, practically without constraining the culvert. Due to the separation of the flow along the vertical, the hydraulic regime in the downstream is improved, the impact of the surface and bottom jets causes the flow energy to be quenched after the structure.

The proposed controller design can be used as a vertical proportional divider. This is achieved in that the guides are configured to be installed at an angle to the horizontal plane (Fig. 2). And there is no need for special autoregulators on the blocking structure, since the valve automatically maintains the level of the upstream.

Claims (2)

1. The upper pool level controller, which contains a tank formed by valves fixed on the horizontal axis of rotation, between which there is a partition and a float actuator associated with the tank valves, characterized in that, with the aim of improving the accuracy of the regulator, its partition is made of two parts hinged to each other and with the flaps, the hinge between the two parts of the partition mounted for movement along a guide. 2. The regulator according to claim 1, differs from the fact that, in order to expand the range of regulation, the guide is set at an angle to the bay horizon. Sources of information taken into account in the examination 1. USSR author's certificate number 376521, cl. E 02 B 7/42, 1971. 2. USSR author's certificate No. 324613, cl. E 02 B 7/42, 1967 (prototype). Pui.f