Combined flow guide device for improving flow state of lateral water inlet pump station water inlet pool

Abstract

The invention discloses a combined flow guide device for improving the flow state of a lateral water inlet pump station water inlet pool, and belongs to the technical field of water conservancy project and municipal engineering pump station water transfer. A J-shaped flow guide pier and an adjustable wing-shaped flow guide crosspiece are arranged near an inlet of the water inlet pump station waterinlet pool, the arc flow guide pier of the J-shaped flow guide pier is used for smoothly introducing water in a river channel into the water inlet pool, the gap between the arc flow guide pier and astraight flow guide pier can balance water volume on two sides of the flow guide pier, and water volume on the two sides is consistent as much as possible; the straight flow guide pier can play a rolein further guiding the water flow; the adjustable wing-shaped flow guide crosspiece can guide the water flow at the inner surface layer, the middle layer and the bottom layer of the water inlet pool,longitudinal flowing is avoided, the flow velocity distribution condition and the pressure distribution condition in the water inlet pool are improved, the water flow smoothly flows to the water inlet of a water pump, the problems of main flow deflection, transverse flowing and serious vortexes in the water inlet pool of a lateral water inlet pump station are effectively solved, and the operationstability of the pump station is improved.

Description

technical field [0001] The invention belongs to the technical field of pumping station water diversion in water conservancy projects and municipal engineering, and relates to a flow guide device for a water inlet pool, in particular to a combined flow guide device for improving the flow form of a water inlet pool of a lateral water inlet pump station. Background technique [0002] In order to ensure the smoothness of the water flow, the pump station should be arranged as a positive water inlet. When the positive water inlet arrangement cannot be adopted due to factors such as terrain conditions, civil engineering scale and planning functions, a side water inlet pump station is required. . The water intake structures of the lateral water inlet pumping station include diversion channels, forebays, wing walls, water inlet pools and pier, etc. Most of the small and medium-sized pumping stations adopt the form of lateral water inlet. Since the inflow direction of the inlet tank ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the relatively special layout of the current lateral water inlet pumping station, and the deflection of the mainstream in the water inlet pool is inevitable, which can reach 90° in severe cases, resulting in uneven pressure distribution, lateral flow in the water inlet pool, and serious vortices Or backflow, poor water absorption conditions, often accompanied by running vibration and noise, etc., and the current rectification measures to improve the bad flow state in the

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