Energy-dissipation flow channel structure capable of reducing flow speed

Abstract

The invention discloses an energy-dissipation flow channel structure capable of reducing flow speed. The energy-dissipation flow channel structure comprises a flow channel hole, a flow channel face isarranged on the flow channel hole, a flow channel inlet is formed in one end of the flow channel face, a flow channel outlet is formed in the other end of the flow channel face, and hump weirs are arranged on the flow channel face. According to the technical scheme, multiple hump weirs are arranged on the flow channel face, have different shapes, heights and sizes, and are staggered on the flow channel face, so that after fluid flows past the hump weirs, a good flow state is maintained, the phenomenon of turbulence of the flow state of the fluid is reduced, and the hydraulic condition is improved; meanwhile, sudden shrinkage and sudden expansion of the overflow cross section are caused by the hump weirs, the energy loss of water current is increased, the purposes of reducing the flow speed and adjusting the flow line and the flow state are achieved, and the probability that the fluid suffers from cavitation damage in the flow channel hole is reduced. The energy-dissipation flow channel structure has the advantages of being simple, convenient in construction, low in building cost and the like, and is suitable for various sluicing structures which need energy dissipation treatment.

Description

technical field [0001] The invention specifically relates to the technical field of flow channel flood discharge and energy dissipation in water conservancy and hydropower projects, in particular to an energy dissipation channel structure for reducing flow velocity. Background technique [0002] As the flow channels set up in water conservancy and hydropower projects, in addition to meeting the flood discharge capacity, they should also ensure the safety of the flood discharge structures during operation, be well connected with the original river flow, and be able to give full play to the due energy dissipation effect to avoid discharge. The water flow caused scour damage to the downstream river bed and bank slope. The current energy dissipation design of the spillway generally adopts energy dissipation methods other than the exit. In recent years, the design of the energy dissipation structure of the spillway tunnel body has gradually developed, and various energy dissipati...

AI Technical Summary

Problems solved by technology

At present, there is a common shortcoming in various forms of energy dissipation in the cave body. When the water flow passes through the cave body for energy dissipation, the flow state is disordered and the water flow condition is poor. Cavitation and cavitation are prone to occur in the contact part.

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