WATER FLOW BAFFLE Russian patent published in 2017 - IPC E02B8/06 

FIELD: construction.

SUBSTANCE: water flow baffle includes a stilling pool located between supply 1 and discharge conduits and a channel. The pool is divided at the inlet before the supply conduit 1 into two vertical channels 8 and 9 by a perforated diffuser section 5. The channels 8 and 9 are provided with annular finning 6 covering the perforated diffuser section 5. The annular finning 6 has inclined slit channels 7. In general, the device is made in the form of a convergent-divergent section. Under the convergent-divergent section, the stilling pool bottom is made by a stilling curvilinear part 4. The stilling curvilinear part 4 is connected by means of a tray with the discharge conduit and the channel. The tray has an inclination towards the bottom of the discharge water conduit. The stilling curvilinear part 4 of the pool 3 is designed to change the direction of the outflow from the vertical channels 8 and 9 and from the perforated diffuser section 5, where the flows collide and are connected by one common flow and are damped in the pool. The width of each of the vertical channels 8 and 9 is assumed to be equal to each other. The head of the perforated diffuser section 5, in the upper part, is additionally provided with a tube 13 with a latch 14 for supplying air or atmosphere under pressure.

EFFECT: increasing the efficiency and reliability of damping the kinetic energy of the separated and reconnected flow, high degree of the discharge channel protection from dynamic influences caused by the release of air accumulations into the tail water, which increases the reliability of the water flow baffle, reduces the length of the closed section of the discharge conduit and excludes the need for making a pool in the tail water of the channel.

2 cl, 2 dwg