A rectification device for improving the flow distribution uniformity of the culvert of the outlet tank of the rainwater pumping station
A flow distribution and rectification device technology, which is applied to water supply devices, waterway systems, drainage structures, etc., can solve problems such as uneven flow distribution of outlet tank culverts, lagging drainage of outlet tank culverts, and silt blockage, etc., to achieve good drainage performance, Solve the lag of drainage and improve the effect of uniformity
Active Publication Date: 2019-02-12
HOHAI UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to solve the above problems, and on the basis of the existing rainwater pumping station, propose a rectification device that can effectively improve the technical problems such as uneven flow distribution of the culvert of the outlet tank, lagging drainage in the culvert of the outlet tank, and siltation blockage.
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[0026] Such as image 3 , 4 As shown, in the water outlet well 3 of a certain urban rainwater pumping station, the rectification device proposed by the present invention is provided, including the support column 1 and the beam 2, and the two vertically intersect in a "T" shape; wherein the water outlet well is located in the pump room 4 Between the water outlet box and the culvert 5, there are 5 water pump units in the pump room 4, and the nozzle radius of the water pump outlet pipe is R=0.75m; for the outlet well, its length L=21m, width W=5.4m, and the support column 1 is located at In the middle of two adjacent water pump outlet pipes, the number of supporting columns is 4, and the distance between two adjacent supporting columns is D2=4.4m. The length A and width B of the cross-sectional rectangle of supporting column 1 are both 0.4m; The cross-section is square and its side length is 0.4m. The horizontal distance between the beam and the outlet of the pump outlet pipe is...
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The invention discloses a rectifying apparatus for improving flow distribution uniformity of a rainwater pump station outflow culvert; the rectifying apparatus is disposed in an outflow well of a rainwater pump station, and the outflow well is positioned between a pump house and the outflow culvert; the rectifying apparatus is composed of a support pillar and a cross beam which are perpendicularly intersected in T form, the section of each of the support pillar and the cross beam is rectangular, the support pillar is mounted between outflow pipe openings of two water pumps, and the cross beam faces the openings of the outflow pipes of the water pumps; the rectifying apparatus can effectively homogenize flows of water from the outflow pipes of the water pumps into the outflow well, flow distribution uniformity is improved for each inlet of the pump station outflow culvert, and draining performance of the rainwater pump station is improved accordingly. The rectifying apparatus is simple in structure, easy to implement and low in manufacture cost, and suitable for popularization and application in the construction and reforming engineering of urban rainwater pump stations and other similar drainage systems having cramped hydraulic structure layout.
Description
technical field [0001] The invention belongs to the technical field of water conservancy projects and municipal engineering rainwater pumping stations, and in particular relates to a rectifying device for improving the flow distribution uniformity of a culvert of an outlet tank of a rainwater pumping station. Background technique [0002] In recent years, urban waterlogging has become a major weakness of urban development in my country. This kind of disaster phenomenon caused by heavy or continuous precipitation exceeding the capacity of urban drainage systems has attracted widespread attention. In the urban drainage system, the rainwater pumping station used to remove urban water is beneficial to avoid urban waterlogging disasters, effectively improve the living environment of urban residents, and is of great significance to the construction of urban image. [0003] However, for cities located in plain areas, due to the relatively large buried depth of rainwater pipes and c...
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IPC IPC(8): E03F5/22
CPCE03F5/22
Inventor 张睿徐辉冯建刚周春天钱向栋
Owner HOHAI UNIV