SU1663101A1 - Device for damping water energy - Google Patents

Abstract

The invention relates to hydraulic engineering and can be used to quench the energy of a stream in case of excessive drilling of water. The purpose of the invention is to increase efficiency in the absence of a differential between the bottom of the rapid current and the bottom of the well. The water flow, the outlet from the rapid current 1, enters the well 3 and further into the discharge channel 2. One part of the stream enters through the central bottom slot and the windows in the partitions 4 into the channels 7 and the lower reach, the other part is directed by the partitions 4 to the side channels 8, and the third part reaches the collecting wall 9 and is cut off by it. During the overflow of flow through the water walls 11, a hydraulic jump is formed in the side channels 8 and in front of the first flow stream partition 4. The partitions 4, the water walls 11 and the rear wall 9 have an inhibiting effect on the flow, and the jets overflowing through the partitions 4 collide with the streams emanating from the windows of the partitions 4, and the stream cut off by the rear wall 9 collides with the transit flow. The zigzag wall, consisting of the second partition wall 4 and the wall walls 11, creates a non-stationary oblique hydraulic jump in front of it, which enhances the quenching of the excess kinetic energy of the flow. 3 il.

Description

The invention relates to hydraulic engineering and can be used to quench the energy of a stream in case of excessive drilling of water.

The purpose of the invention is to increase efficiency in the absence of a differential between the bottom of the rapid current and the bottom of the well.

FIG. 1 shows a water flow quencher, top view; in fig. 2 - section A-AnafyT. one; in fig. 3 -BB section nafig.1.

The water flow energy damper contains a fast-water bay 1 located between the inlet and an outlet channel 2, an expanding water well 3 in plan.

V-shaped in terms of partitions 4, located at the bottom 5 of the well 3 along its axis and made with a height increasing from the rapid current 1 to the outlet channel 2. wherein the partitions 4 are directed vertices to the rapidity 1. In the partitions 4, starting with the second the flow, the central slots are made in the form of windows 5 with dimensions decreasing to the outlet channel 2 Partitions 4 form channels 7 between themselves and on each side of the well 3 brka expanding channels 8. At the exit of the quencher, a V-shaped wall 9 is installed in the plan view reversed

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with the apex to the diverting channel 2 and with the lateral sides resting on the last partition 4 in the direction of flow, and the apex against the support 10, installed at the bottom 5 of the connector 3.

The rapid nozzle 1 is connected without the formation of a drop with the bottom 5 of the well 3, on which lateral expansion channels 8 are installed retaining walls 11 adjacent to the sides of the well 3 and symmetrically located relative to the axis of the well 3 under right angle in plan to the lateral sides of the second stream of the partition 4 with the formation of culvert openings 12 between them and the lateral sides of this partition 4. In the first partition along the stream of the partition 4 there is a central bottom slot 13 width exceeding the width of the window zo second downstream wall 4 stream,

The water flow quencher works as follows.

A part of the wave flow coming from the rapid current 1 into the well 3 enters through the centoal bottom slot 13 and the windows 6 of decreasing sizes into the channels 7 and the downstream extinguisher, the other part collides with the partitions 4 and the lateral channels 8 go, the third part of the wave flow reaches precast wall 9 and it cuts off the university. When the flow overflows through the water walls 11 in the side channels 8 and before the first partition 4, a hydraulic jump is formed.

Thus, in the bottom structure of the quencher, the reactive, dissipative, and distributive principles of quenching the energy of the sourburn flow are used. The reactive (inhibitory) effect is manifested in the fact that when a high-speed wave flow rushes onto the partitions 4, the water-borne walls and the collecting walls 11 and 9, respectively, a counter-current reaction occurs.

Dissipation of the waveguide energy occurs in hydraulic jumps formed in the side channels 8 and in front of the first partition 4 of the extinguisher, as well as in a collision r1 iuy flowing over the ridges of the partitions 4 and jets flowing out of the windows 6 of the partitions 4, vprch collision of the jets cut by the visor wall 9, with transit flow.

The defusing of rolling waves occurs due to the distribution of the wave flow into separate jets, reaching

downstream at unequal time intervals when a stream collides with partitions 4, as well as when a part of the stream passes through windows 6 of decreasing size and cutting off the crest part of the jet by the retaining wall 9.

The zigzag wall, which includes the second partition wall 4 and the water walls 11, creates a nonstationary slanting hydraulic jump, which enhances the extinction of the excess kinetic energy of the flow.

The width of all partitions 4 is unchanged,

5 i.e. it is allowed to spread the ridge part of the flow to the side channels 8.

The introduction of the water walls 11 into the side channels 8 makes it possible to reduce the rate at the exit of the extinguisher due to

0 transition flow to a calm state. In this case, the hydraulic jump created by damping elements does not move above the entrance to the well 3, i.e. at all costs, its drum is placed in

5 within the quencher. The sediments drawn by the flow are not retained in the extinguisher, but are brought to the lower reach through the bottom slot 13 and the window 6 in the partitions 4 and the culvert holes 12.

0

Claims (1)

Invention Formula A water flow energy damper that includes a water dispenser located between the outlet part of the rapid current and an outflow channel expanding in terms of water diversion, V-shaped in terms of partitions, which are successively placed at the bottom of the well along its axis, increasing to an outflow channel and directed by the apex to the chute, a V-shaped in terms of the rejection wall, facing with the apex to the outflow channel and resting with the lateral sides on the last 5 in the direction of flow of the partition, and with the apex on the support, fief on the bottom of the well along its axis, wherein the septa in starting from the second flow stream formed central 0 slots in the form of windows with dimensions decreasing to the outflow channel, characterized in that in order to increase the work efficiency in the absence of a difference between the bottom of the rapid current and the bottom 5 well, it is equipped with two water walls, symmetrically located relative to the axis of the well and installed at its bottom at a right angle in plan to the sides of the second flow stream of the partition with the formation of culvert openings between them and the sides of this partition septum flow done central bottom slot wider than the width of the window in the second partition of the flow stream. figure 1