Water Inlet Expanding Pipe Structure and Pumping Station Rectification Method

Abstract

The invention discloses an inflow increasing tube structure and a pump station flow rectification method. The inflow increasing tube structure comprises an inflow increasing tube which is a bent tube; the inner bottom of the inflow increasing tube is provided with a slant; the slant inclines from outside to inside; when water flow passes the inflow increasing tube, since centrifugal force generated by turning of the water flow is counteracted by centripetal force provided by the slant, the water flow is evenly distributed on the slant. According to the pump station flow rectification method, the inflow increasing tube structure is connected to a water inlet of a pump house in a communicated manner. The existing inflow increasing tube structure is modified, the outside height is reasonably increased so as to provide the centripetal force, the water flow is evenly distributed in the inflow increasing tube, the state and speed of the water flow are more uniform before the water flow enters a front pool of the pump house, transverse spread of flow is increased, and accordingly, the speed and state of the water flow in the pump house are more uniform and good hydraulic performance of a pump station is guaranteed.

Description

technical field [0001] The invention relates to the technical field of pump station rectification, in particular to a water inlet expanding pipe structure and a pump station rectification method. Background technique [0002] The water inlet buildings (structures) of the pump station mainly refer to the water inlet tank culvert (water intake pipe), the water inlet gradual expansion pipe, and the forebay and flow channel between the pump station and the pump station. All the water inlet holes evenly and directly supply water to prevent the vortex flow from entering the water pump, which will adversely affect the normal operation of the water pump. [0003] However, in actual engineering, there is a certain angle between the water inlet box culvert of the pumping station and the water inlet gradual expansion pipe, and the water inlet gradual expansion pipe and the main water flow direction of the pump house, resulting in a large inertia of the water flow, often causing water i...

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Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the present invention proposes a water inlet expanding pipe structure and a pumping station rectification method to solve the problem of unstable flow state and easy formation of vortex funnels in the water flow turning of the pumping station during the water inlet process. question

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