SU1087612A1 - Arrangement for damping water stream in lower pond of hydraulic structure - Google Patents

Abstract

DEVICE quench water flow into the downstream hydraulic structures, comprising mounted on the apron absorbers made as piers, having a vertical rear face, a pointed front portion, a concave curvilinear in terms of side faces and an upper face sloping towards the front, characterized in that, in order to increase the efficiency of the blanking, the upper curvilinear face is made concave in the longitudinal and transverse vertical planes of the pier and is smoothly joined with the wallboard, and the ratio of the length pi meat to its height is 1.5-2.5. (L

Description

The invention relates to hydraulic engineering and can be used to extinguish the energy of the water flow in the downstream of hydraulic structures.

A device for quenching a stream of water containing quenchers installed on a water stand, made in the form of Piers [1].

The disadvantage of this device is the occurrence of cavitation and the destruction of piers.

It is also known a device for damping the flow in the downstream of a hydraulic structure, containing dampers installed on a waterhole, made in the form of piers having a vertical rear face, a pointed front part, concave curved side faces and

The device comprises quenchers mounted on a waterhole 1 made in the form of piers having a vertical, rear face 2, a pointed front ₅ part 3, concave curved side faces 4 and an upper face 5 made concave in the longitudinal and transverse vertical planes of the pier and smoothly interfaced with a water hole 1.

The ratio of the length of the pier to its height is 1.5-2.5.

All curved edges of the pier can be made parabolic

The device operates as follows.

A stream of water moving along a waterway, interacting with the curved surfaces of the piers, splits into an upper face with a slope in the direction _{2C of the} front part t21.

Its disadvantage is the low efficiency of quenching the energy of the water stream.

The purpose of the invention is to increase the efficiency _of work.

The goal is achieved in that the upper curved face is made concave in the longitudinal and transverse vertical planes of the pier and smoothly mated with a water hole, and the ratio of each pier into three components: two lateral and upper. Impactless interaction of the flow with the pier is reported by outgoing from one point of the face of the pier. The split parts of the flow become fan-shaped, intensively aerated and collide with each other, losing kinetic energy.

Tests have shown that a positive effect in terms of damping the flow energy is achieved when the ratio of the length of the pier to its height is 1.5-2.5.

In FIG. 1 shows a device, side view; in FIG. 2 - the same, top view; in FIG. 3 - the same, rear view j ^{35 of the} length of the pier to its height equal to

1.5-2.5.

This embodiment of the device allows to increase the efficiency of its operation.

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VNIIIPI Order 2599/26

Circulation 644 Subscription

The PPP branch '* Patent ·', ₀ , Uzhhorod, st. Project, 4

Claims (1)

A DEVICE FOR EXTINGUISHING A WATER FLOW IN A LOWER BEAUTY OF A HYDROTECHNICAL STRUCTURE, comprising water-absorbing dampers made in the form of piers having a vertical back face, a pointed front part, concave curvilinear lateral planes in the plan and the upper part with the slope towards the side which, in order to increase the efficiency of quenching. The upper curved face is made concave in the longitudinal and transverse vertical planes of the pier and smoothly conjugates with a water hole, and the ratio of the pier length sg to of the height of 1.5-2.5. SU „1087612