SU918937A1 - Head water level regulator - Google Patents

Description

(5) UPPER LEVEL REGULATOR

The invention relates to hydraulic water-regulating and regulating structures and can be used as an automatic shutter on dams, rivers, differences and canals.

A valve for culvert hydraulic structures is known, consisting of two flaps, each of which rotates in the supporting bearings around a vertical axis under the action of flow pressure from one side and the strength of an elastic element from the other. The elastic element is rigidly fastened in the lock, which is mounted on the axis with the possibility of rotation to the required angle and subsequent fixation. As the water level rises in the upstream, the sash closes and passes a constant flow l to the lower reach.

The design flaw is. the impossibility of its use in order to regulate the level of the upper biepha

the pool, as well as the difficulties of using the spring element with significant head.

Closest to the invention, the technical solution is a valve-shaped automatic shutter in the form of a regulator, consisting of flat pressure head half and back pressure half. Half-legs are interconnected rigidly and fixed on vertical axes of rotation. The design has counter-pressure chambers, which are quarter-cylinder tanks in which half-shells move. The principle of operation of the automatic shutter is based on balancing the momentum of forces that open and close the span of the structure relative to the vertical axes 2J.

The disadvantages of the design should

20 include the need to build large chamber-tanks.

Claims (1)

The purpose of the invention is to simplify the design of the controller. 3. The goal is achieved by the fact that in the level controller of the upper buoy containing a pressure shield installed in the channel, fixed on the vertical axis of rotation, and a counterpressure shield, the vertical axis of rotation is offset relative to the longitudinal axis of the channel, the pressure shield is set in the closed position under the sharp angle to the walls of the channel, the back pressure shield is pivotally connected to one of its edges with the edge of the pressure shield, and the other edge of the back pressure shield is mounted to move along a guide located parallel to the longitudinal axis of the channel and in the plane of the vertical axis of rotation, and the distance from the articulated joint of the pressure shield and the back pressure shield to the vertical axis of rotation is greater than the distance from the free edge of the pressure shield to. vertical axis of rotation. Fig. 1 is a perspective view of the regulator, ajar position; in FIG. 2, the same in the closed position is a top view; on fig.Z - the same, in the open position. The headwater level regulator consists of a main pressure plate 1 mounted on a vertical axis of rotation 2 (Fig. 1). To the pressure shield 1, the hinge 3 is attached with one edge to the back pressure shield k, the other edge of which moves along the guides 5 placed parallel to the longitudinal axis of the channel. Water inside the adjusting tank 6 is supplied to the piping system 7 with valves 8 and 9. The main pressure shield is fixed to the flow at an acute angle, for example, "L 50, and the axis 2 is rotated in rotation 6 towards the tank 6 (Fig. 2). For adjusting the level of water in the tank 6, a diaphragm sensor 10 is used, which is connected by a hydraulic link 11 to a float sensor U8B 12. The regulator operates as follows. When skipping spring floods, the regulator is in the closed position (Fig. 3). In this case, the valve 8 should be closed, the backside of the valve 9 should be open and the container 6 should be emptied. Water freely discharged from the downstream. To close the valve, it is necessary to open the valve 8 and 74 to close the valve 9. The container 6 begins to fill. Due to the difference between the tank 6 and the downstream of the Vits, the pressure force acting on the shield A. The main shield 1 will begin to turn around once more and will block the discharge span. At the same time, due to the displacement of the vertical axis of the mount () in the open state, the regulator is in the state of stable equilibrium (Fig. 3) - Filling of the tank 6 leads to the imbalance of this equilibrium, the pressure force on the aircraft part will be greater than on the aircraft part and 1 starts to turn. Float sensor 12 is designed to automatically maintain the level of the upstream. When the pool level rises, the float is triggered and this leads to the opening of the sensor 10. The water level in the tank 6 decreases and the shield 1, turning, opens the discharge holes near the walls of the conduit (figure 1). The headwater level controller allows to simplify the design of known regulators and reduces the amount of concrete work. . The application of the proposed regulator allows reducing the cost of such structures by 1, 2-1, 3 times. Claims An upstream level regulator containing a pressure shield mounted on a vertical axis of rotation and a counterpressure shield, characterized in that, in order to simplify the design, the vertical axis of rotation is offset relative to the longitudinal axis of the channel, the pressure shield is in the closed position at an acute angle to the channel walls, the backpressure shield is pivotally connected to one of its edges with the edge of the pressure shield, and the other edge of the backpressure shield is mounted so that it can move Along a rail parallel to the longitudinal channel bend and in the plane of the vertical axis of rotation, the distance from the articulated joint of the pressure shield and the backpressure shield to the vertical axis of rotation is greater than the distance from the freedoms