SU1435690A1 - Stream energy attenuator for tubular spillways - Google Patents

Abstract

The invention relates to hydraulic engineering, in particular, to water outlets, and can be used to quench the energy of the water flow in the downstream of the tubular water outlets. The purpose of the invention is to increase work efficiency. A horizontal tubular tip 2 in the form of an expanding truncated cone with a transverse slit perforation 3 on the side walls is installed on the inlet w, pipe 1. At the beginning of the tip 2, a swirler 4 is installed, and at the end - a plate 8 with holes. Ogolovok 2 is placed in a water well 10, made in the form of a truncated half-cone. The well 10 is connected to the outflow channel 13. Water entering the tip 2 of pipe 1 is swirled with a swirler 4, which ensures good expansion of the water flow in the expanding tip 2. The stream expands, loses energy and goes out through the perforations 3 well 10, after which it enters outlet channel 13. 2 h. the item of f-ly, 4 ill. (L

Description

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i The invention relates to hydraulic engineering, namely to water outlets, and can be used to quench the energy of the water flow in the downstream of the tubular outlets.

The purpose of the invention is to increase work efficiency.

FIG. 1 shows a water outlet, a longitudinal section; in fig. 2 is a view A of FIG. one; in fig. 3 - a swirler of water flow in a perspective view; in fig. 4 - outlet in axon-1 | 1etria.

A tubular hollow-: wk 2 in the form of widened, truncated chonus with a transverse-slit perforation of 3 lateral walls is connected to the inlet pipe 1 of the water outlet. At the beginning of the tip 2, an expanding swirler 4 of the water has been installed, inside of which there is a boiling pipe 5 with screw blades 6 and 7 directed in different directions. The 3 end of the head 2 has a reflector, made in the form of a circular transverse plate 8 with trapezoidal concentric holes 9. The perforations of the perforation 1 and 3 are made with an increasing head to the end of the head 2. The head 2 is dispersed in the water well 10 is made of an iOM in the form of a truncated half-cone, the angle of which has a COPHOTH equal to or greater than the angle of consistency of the tip 2. In the walls of the well 10 there is a groove 11 in which 1 is located 12. A discharge channel 13.

; The pressure flow through the supply pipe 1 enters the expanding tip 2. The passage through the expanding swirler 4, the flow by pipe 5 is divided into annular and cylindrical, with the blades 6 and 7 twisting in opposite directions that provide good expansion of the flow in the tip 2. When swirling, part of the kinetic energy of the translational motion of the water flow transforms into the kinetic energy of the rotational motion.

When the flow is twisted, a centrifugal force appears, under the action of which the flow from the transverse slit holes of the perforation 3 is pushed out of the tip 2. To prevent the water from splashing out of the tip 2, the plate 12 is installed.

At the end of the tip 2 in the plate 8 there are trapezoidal concentric holes 9. The flow, leaving radially from the ladder of the ceidal concentric holes 9, splits into multiple jets and spreads evenly. Cap 2 is located at. water well 10, having the form of a semi-cone, with the passage of which flow,

5 expanding and evenly spreading, quenching and velocities over the entire living section in the diverting channel 13 have the same values.

Claims (3)

Invention Formula Q 1. A flow energy absorber for a tubular outlet, including a tubular tip installed horizontally in a water well with holes in the side walls and a reflector on the end, characterized in that, in order to increase the efficiency of operation, the tip is designed as an expanding truncated cone and provided with an expanding water flow swirler installed at the beginning of the tip, and the holes in the side-jK walls of the tip are made in the form of a transverse slit perforation, and the water well is made in the shape of a truncated of the half-cone angle of taper which equality or greater than the angle of taper tip. 2. The damper according to claim 1, characterized in that the reflector is made in the form of a round 5 transverse plates with trapezoidal concentric holes. 3. The damper on PP. 1 and 2, characterized in that the transverse slit perforation in the side walls of the tip is made with an area of holes that increases towards its end. View / i YLLYAG / DDDDD fz / g. 2 Phage.Z FIG.