Rectification device and method for improving water distribution of diffusion type water inlet box culvert of urban water delivery pump station

Abstract

The invention discloses a rectification device and method for improving water distribution of a diffusion type water inlet box culvert of an urban water delivery pump station. The rectification devicecomprises a first bottom sill, a combined beam and a second bottom sill which are arranged in the diffusion type water inlet box culvert in a water flow direction, wherein the first bottom sill and the second bottom sill are both in a zigzag form, are both arranged on the bottom surface of the diffusion type water inlet box culvert and are symmetrically arranged along the center line of the diffusion type water inlet box culvert; the combined beam comprises multiple beams which are vertically arranged up and down; each beam is in the zigzag form and is symmetrically arranged along the centerline of the diffusion type water inlet box culvert; and an interval is formed between the beam at the lowermost part and the bottom surface of the diffusion type water inlet box culvert. According tothe rectification device and method disclosed by the invention, by adopting the first bottom sill to perform rectification on forward inflow of the diffusion type water inlet box culvert to fully diffuse a water flow, the combined beam homogenizes flow rate distribution on a vertical face of the combined beam, and then the flow rate distribution condition of the water flow on a plane is improved through the rectification effect of the second bottom sill, so that uniform outflow of the diffusion type water inlet box culvert is realized, and good inflow condition is provided for the urban waterdelivery pump station.

Description

technical field [0001] The invention belongs to the technical field of urban water supply system pumping station engineering, and in particular relates to a rectifying device and method for improving the water distribution of diffusion-type inlet tank culverts in urban water supply pumping stations. Background technique [0002] The urban water supply system is an important guarantee system to ensure the water supply of residents, industrial production, etc., and the water delivery pump station is widely used in water intake projects, water purification projects, and water transmission and distribution projects in the urban water supply system to ensure the stability of the urban water supply system. The core composition of the operation. However, the construction of urban water pumping stations is easily affected by objective factors such as urban planning, land use scale, and surrounding building restrictions, and it is often difficult to design and arrange them in accorda...

AI Technical Summary

Problems solved by technology

However, the construction of urban water pumping stations is easily affected by objective factors such as urban planning, land use scale, and surrounding building restrictions, and it is often difficult to design and arrange them in accordance with the requirements of good hydraulic conditions

Therefore, there are generally hydraulic flow problems such as poor water flow in urban water pumping stations, which seriously affect the stable and efficient operation of pumping stations.

Especially when the water inlet box culvert adopts the diffusion type, it is easy to cause uneven distribution of the inflow flow velocity of the pump station, resulting in bias flow in the sump of the pump station, especially when the water level is low, it is easy to induce unfavorable flow such as surface suction vortex Phenomenon occurs, endangering the operation safety of urban water pumping stations

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