Novel pump station overhaul platform rectifying anti-vortex device and method

Abstract

The invention relates to a novel pump station overhaul platform rectifying anti-vortex device and method, and belongs to the technical field of water conservancy projects and municipal projects. The device comprises an overhaul platform in a water inlet pool, and is characterized in that a plurality of waterside face circular through holes are formed in the platform waterside face of the overhaul platform, and a plurality of platform horizontal plane circular through holes are formed in the platform horizontal plane of the overhaul platform. By means of the device and method, the overhaul platform is arranged between the water inlet and a horn opening of the water inlet pool, and when water is sucked by the horn opening of the water inlet pool of a pump station and water flow in the middle in the water inlet pool flows through the platform waterside face of the overhaul platform, a water body flows into the position below the overhaul platform through the waterside face circular through holes with certain included angles in the platform waterside face; when a water body at the upper portion of the overhaul platform flows through the platform horizontal plane, the water body flows into the position below the overhaul platform through the perpendicular platform horizontal plane circular through holes in the platform horizontal plane, and therefore the backflow area below the overhaul platform is eliminated, the flow state is smoothened, and vortex is avoided.

Description

technical field [0001] The invention relates to a novel rectifying and anti-vortex device and method for a maintenance platform of a pumping station, belonging to the technical fields of water conservancy engineering and municipal engineering. Background technique [0002] The uneven distribution of flow velocity in the inlet pool or the appearance of vortex will not only significantly reduce the energy performance and cavitation performance of the pump, but also may cause the pump unit to vibrate and even fail to work normally. Only with good water inlet conditions can the safe and efficient operation of the pump be guaranteed. Open inlet tanks are widely used in practical engineering at home and abroad, so many experts and scholars at home and abroad have conducted a lot of experimental research on open inlet tanks, obtained many beneficial results, and applied them in engineering practice. In engineering design, it is often necessary to add an inspection platform to the ...

AI Technical Summary

Problems solved by technology

However, this patent does not involve the setting of structures in the water inlet pool, and does not take into account the elimination of the vortex around the structures

The authorized practical patent CN201520191918 sets the rear wall partition wall in the open water inlet pool, which can effectively improve the flow state at the back wall of the open water inlet pool, improve the water absorption uniformity of the water pump, and prevent backflow at the back wall of the open water inlet pool. The vortex occurs, but this measure is only aimed at the bad flow pattern and the generation of the backflow area caused by the rear wall distance of the open inlet pool, and does not involve the elimination of the horizontal axis vortex around the maintenance platform

Most of the existing patents are aimed at the generation of water surface vortex and attached bottom vortex in the water inlet pool, and involve the anti-vortex and vortex elimination measures when setting up the maintenance platform in the water inlet pool, and there is no patent disclosure in this regard

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