DAMPER OF WATER FLOW ENERGY Russian patent published in 2017 - IPC E02B8/06 

FIELD: construction.

SUBSTANCE: damper of water flow energy includes the supply channel 1, the stilling basin 3 with the fairing 8 with the partition wall 7, which is located in the supply channel 1. The stilling basin is located between the supply channel 1 with the fairing 8 and the outlet channel 2, has a circular shape in plan and is equipped at the inlet with two curved water conduits 4 and 5 connected to each other in the form of the mixing chamber 6 having an increasing cross-section in the direction of flow motion towards the outlet channel 2. The threshold 9 in the plan is made in the form of a curve symmetrical with respect to the longitudinal basin axis 3, facing its convexity towards the outlet channel 2, the curve consisting of two arcs 10. In the upper part of the threshold 9, an overlap is arranged in the form of a horizontal shelf 11 above its curved part. The basin 3 has a water inlet opening equipped with the partition 13 with the louver plates 14. The louver plates 14 are arranged at an angle of 30° to the effluent flow in the gap of the water outlet opening with a clearance above the bottom of the outlet channel 2 and are designed to direct the effluent flow from the outlet opening to the outlet channel 2 where the flows are then combined into one common flow, which reduces the bottom speeds behind them. From above the outlet channel is overlaid by the slab 15 at the outlet of the flow from the mixing chamber 6.

EFFECT: in case of intensive collision of two flows in the mixing chamber of the screw motion and at the water outlet opening with arranging the louvre plates with a clearance above the bottom of the outlet channel, when the flow is divided into jets and coupled to the outflow channel, the efficiency and reliability of damping the kinetic energy of the separated and rejoined flow is increased, and also a high degree of protecting the outlet channel from the dynamic influences caused by the parallel-jet flow to the tail water is achieved, which increases the reliability of the damper of the water flow energy, reduces the material consumption of the structure and eliminates the channel erosion.

2 cl, 2 dwg