FLOW MODE CONTROL METHOD IN THE OPENED CHANNEL Russian patent published in 2017 - IPC E02B8/06 E02B13/00 

FIELD: construction.

SUBSTANCE: method is involved in the formation of the flow hydraulic structure downstream directly between the side walls of the channel and formation of the control device transitional section in the form of the rotary flaps with compression of the flow in the channel center. The hydraulic flow structure is formed in the transition section, further expands along the shape of the diffuser chamber, forming the chamder flared type angle 40…60°. The rapid flow channel-1 with revetment walls and bottom between the channel lateral walls for regulating the speed mode is performed from the vertically installed shields 4, one vertical edge of which is fixed at the axis of rotation 5, and the other edge is connected with the horizontal displacement drive. The lower downstream edge of the shield is supplied with guide 6, and from the top the shields 4 are provided with deflectors 7. The guide 6 has the ability to move in a lateral recess 8, performed in the onshore part of the channel 1. The angular joint of the shields 4 and guides 6 is articulated additionally with flow guiding elements 9 in the form of the shields 10, made from the average 11 and lateral 12 links, connected by means of the hinges 13 with each other. The flow guiding element 9 in the operation takes the position according to the diffuser chamber 14 shape. In the full extension cross section at the end of the diffuser chamber 14 the spreading torrential stream immediately goes between the vertical blinds 15 with controlled drive, oriented along the outlet channel 16. The level headwall is reduced before the guide curves system, executed in the form of blinds 15, that allows to get the uniform distribution with the reduced unit costs and speeds across the width of the outlet channel 16.

EFFECT: invention allows to create the hydraulic conditions after the flow extension area in the diffuser chamber, providing the improving stability of the discharge intensity distribution by flow guiding element and the structure operation reliability.

4 cl, 1 dwg