RU1820365C - Controller of head water level in hydraulic structures - Google Patents

Abstract

The invention relates to hydraulic engineering. The goal is to simplify the design, increase the reliability of the upstream level regulator. SUMMARY OF THE INVENTION: the regulator comprises a deep segmented shutter 1 and a surface shutter, which are placed on the culverts with the expiration of the feed through the top of the panels, interconnected by a cable connection 9, the rotation axis 2, the control drive 3, which is attached to the axis of rotation 2 segment

Description

FIELD OF THE INVENTION The invention relates to hydraulic engineering and can be used to control the levels and flow rates of water in the upstream watershed and water intake structures. :

The purpose of the invention is to simplify and increase reliability.

Fig. 1 is a top view of an upstream level regulator in a two-span spillway; in FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a section BB of FIG. 1.

The downstream level controller in hydraulic structures (Figs. 1 and 2) consists of a segmented shutter 1, rigidly fixed to the axis of rotation 2, on which the control actuator 3, made with a hollow curvilinear outline and located in the shaft 4, is also rigidly fixed communicating with the downstream by a short drain pipe 4, and with the upper downstream by a pipeline 6 and a level 7. The segmented shutter 1 is connected to the surface shutter in the form of a flat shield 8 by means of a cable connection 9, the cable of which thrown over the blocks 10, rotating together with the shaft 11 (Fig. 1, 3), and connected to the upper edge of the flat shield 8, the lower edge of which is placed on the spillway of the structure 12 and rotates in the horizontal axis of rotation 13. For the direction of flow and floating objects to the center of the panel of the flat shield 8 from the upstream side in the side walls of the structure there are side projections-openers 14 to which the flat shield 8. adjoins in the closed position. .

Water level gate valves are located on various spans of the hydraulic structure. For example, a segmented shutter 1 overlaps the culvert hole of the transit channel 15, and a flat shield 8 - on the spillway hole of the side outlet 16.

When transported by the fin flow in front of the culvert hole of the transit channel 15, a pan 17 can be arranged to allow the main

the fin mass toward the spillway of the outlet channel 16.

The upstream level regulator operates as follows.

5When there is no water in the upstream, the gates of the regulator are in the closed position. With the flow of water, the level in the upstream rises and reaches the inlet of the setter 7, position

0 which determines the calculated level.

The equilibrium position of the regulator is ensured when filling in the upper pool, corresponding to the calculated level, reaching the upper edge of the flat

5. Shield 8 ..

When water enters through the inlet of the level setter 7 and through pipe 6 into the shaft 4, it is filled, since the influx of water is greater than the outflow

0 through the drain pipe 5. The filling of the shaft 4 causes the hydrostatic pressure of the water to act on the pressure face of the control actuator 3, which causes it to rotate around axis 2. But since

5, the depth segment shutter 1, the axis 2 and the control actuator 3 are interconnected and are of a rigid structure, and the depth segment shutter 1 will begin to move upward to open the water inlet 15.

In view of the fact that the deep segmented shutter 1 is connected with a flat shield 8 by means of cables, blocks 10 and a rotating shaft 11 of a cable-block communication 9

5 begins to move downward around the horizontal axis of rotation 13, opening the culvert hole of the outlet channel 16. When transported by the fin stream, the pan 17 helps to divert the main mass .0 of floating objects towards the culvert hole of the outlet channel 16 and discharges a flat shutter 8 through the top of the panel.

The equilibrium state of operation of the controller 5 is ensured at the calculated level in the upstream, i.e. when the flow of water through the pipeline 6 and the setter 7 into the shaft 4 will be equal to the outflow from it through the drain pipe 5. In this case, the deep 0

the segment shutter 1 and the flat shield 8 will be open for certain values, permitting the flow of water coming from the upper pool through channels 15 and 16.

With the estimated water flow in the upper pool, the gates 1 and 8 provide the maximum values for opening the culverts, permitting the estimated water flow through channels 15 and 16.

The decrease in water flow in the upper pool of the structure will cause a decrease in the level above the opening of the setter 7, which will reduce the flow of water entering the shaft 4, and reduce the hydrostatic pressure of the water on the pressure face of the control actuator 3 and cause the shutter 1 and shield 8 to move to close the culverts 15 and 16 ..

The proposed design of the upstream water level regulator in hydraulic structures has a simpler and more reliable design, since one of the segment gates is made in the form of a flat shield located on the threshold of the structure, where side and bottom seals are eliminated and significant friction forces are excluded them, since the flat shield in the closed position adjoins the side ledges-openers arranged in the side walls of the structure.

The exclusion of frictional force in the seals of the flat shield causes a simplification of the design of the regulator, and the connection of the flat shield with the main shutter of the cable block system and the common shaft of rotation increases the reliability of the device as a whole.

Claims (1)

 The formula is invented for the Upstream level regulator in hydraulic structures, containing segment deep and surface gates mounted on horizontal axes of rotation and interconnected by a cable-block connection, a control actuator rigidly connected to the axis of rotation of the segment deep shutter and located in a mine connected to the upper pool through a level gauge and equipped with a drain, characterized in that, in order to simplify and increase reliability, the surface shutter is made in the form of a flat shield, neither the bottom edge of which is mounted on a horizontal axis of rotation fixed to the overflow threshold, and the upper edge is connected to a cable block connection, the flat panel being installed with the possibility of adjoining in the closed position to the side projections-openers, fixed in the side walls of the structure from the upstream side. Yu - © Ch 7 UUU / // - © Ch 7 UU // fi g. 2 13 8 I y. ff s9  figz