SU1724798A1 - Device for connecting tunnel spillway to lower pond of hydraulic structure - Google Patents

Abstract

The invention relates to hydraulic engineering and can be used to quench the energy of the flow of water exiting a tunnel spillway into the downstream of a hydraulic structure. The purpose of the invention is to increase the reliability of operation by reducing the force effect of the flow of water on the surface of the downstream. In front of the exit tip 7, a water distribution wall 9 is installed parallel to the portal wall 8 with a divider consisting of a splitter 10c with an inclined upper face 12 and a splitter 14 with an edge 15 and curvilinear concave surfaces 16. The water flow coming out of the tip 7 falls on the fins 11 and 15 are divided into three parts by the fins 11 and 15, which are guided by the surfaces 16 and the face 12 to the sides and upwards and further through the wall 9 and the side walls in a uniform layer above their edges are dropped into the lower reach. 1 hp f-ly, 4 ill.

Description

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The invention relates to hydraulic engineering and can be used to quench the energy flow of water flowing from a tunnel spillway into the downstream of a hydraulic structure.

The purpose of the invention is to increase the reliability of operation by reducing the force effect of the flow of water on the surface of the downstream.

FIG. 1 shows a hydraulic structure with a tunnel spillway; in fig. 2 — node I in FIG. 1 (turned); in fig. 3 shows section A-A in FIG. 2; in fig. 4 shows a section BB in FIG. 2

The hydraulic structure 1 with the downstream 2 and the upstream 3 has a tunnel spillway 4 with an input tip 5, valves 6 and a tubular output tip 7. The tip 7 is made with a smooth expansion of the cross section and a portal wall 8 at the exit. In front of the tip 7, parallel to the wall 8, a vertical water distribution wall 9 is installed with a water divider opposite the tip 7, made in the form of a prismatic horizontal splitter 10 with an edge 11, a sloping upper edge 12 and a horizontal lower edge 13 and a prismatic vertical divider 14 installed under it with an edge 15 directed to the tip 7, and vertical concave curved side surfaces 16. On the sides between the ends of the wall 9 and the wall 8 there are side walls 17. The edges of the walls 9 and 17 are located us above the well head 7, the rib 11 and splitter 10 is disposed below the top of the well head 7. The apparatus is provided with vertical partitions 18c are bent towards the axis of the well head 7, the lower edges 19 extending parallel to the axis of the well head 7 on both its sides to form windows 20 between the bottom

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21 and partitions 18 and attached to the walls 8 and 9. The windows 20 are made with decreasing height from the tip axis 7 to the side walls 17..

The flow of water coming out of the head 7, runs on the ribs 11 and 15 of the dividers 10 and 14, is divided into three parts, which are directed by the surfaces 16 and the face 12 towards the walls 17 and upwards and through the walls 9 and 17 enter the lower reach 2. Partitions. 18 allow the flow of water to be redistributed and, in a uniform layer through the edges of the walls 9 and 17, discharge water to the downstream 2.

Claims (2)

1. A device for coupling a tunnel spillway to the downstream of a hydraulic structure, including a tubular exit tip with a smooth expansion of the cross section and a portal wall at the exit and a water distribution vertical wall installed in front of the head parallel to the portal wall, characterized in that the purpose of increasing the reliability of operation by reducing the power effect of the flow of water on the surface of the downstream, it is provided with side walls installed between the ends of the and the portal wall, and the water distribution wall is made with a water divider installed opposite the tip and made in the form of a prismatic horizontal divider with an edge directed to the tip, an inclined upper and horizontal lower edges and a prismatic vertical divider installed under it with an edge directed to the tip, and vertical concave curvilinear side surfaces, with the upper edges of the water distribution and side walls located above the tip, and the edge of The ontal divider is located below the top of the tip. . 2. The device according to claim 1, that is, so that it is provided with vertical partitions with the lower edges bent towards the head axis and arranged with lower edges parallel to the head axis on both sides with the formation of windows between the bottom and partitions and attached to the portal and water distribution walls, and the windows between the bottom and partitions are made with decreasing height from the tip axis to the side walls. R FIG. J / u