A kind of vortex elimination device and method for square column on the rear wall of closed water inlet pool

Abstract

The invention relates to a closed vortex elimination device and method for a square column on the rear wall of a water inlet pool, comprising a closed water inlet pool, a water suction pipe, a trumpet pipe is provided at one end of the water suction pipe, and a trumpet mouth is provided on the trumpet pipe; the two sides behind the trumpet pipe The second and third square columns are installed symmetrically. The distance between the center of the second and third square columns and the rear wall of the closed water inlet pool is 0.553 times the diameter of the bell mouth. The distance between the center of the second square column and the side close to the second square column is closed. The distance between the side wall of the type water inlet pool is 0.334 times the diameter of the bell mouth, and the distance between the center of the third square column and the side wall of the closed water inlet pool near the third square column is 0.334 times the diameter of the bell mouth; There are first square uprights. Through the present invention, the column is used to fill the water body where the vortex occurs, break up the water body, recombine the water body, reduce the vortex velocity of the water flow, and achieve the effect of preventing the occurrence of wall-attached vortex in the closed water inlet pool.

Description

technical field [0001] The invention relates to a vortex elimination device for a square column on the rear wall of a closed water inlet pool and a method thereof, belonging to the technical field of pump station engineering design. Background technique [0002] The open water inlet pool is a structure for the suction pipe of the water supply pump to absorb water. It has a free water surface and is usually used in small and medium-sized pumping stations. The closed inlet pool is to set a concrete cover at the position of the pump beam of the open inlet pool to seal the open inlet pool. The advantage of this modification method is that there is no free water surface in the inlet pool, and surface vortices will not be induced due to the fluctuation of the free water surface and the turbulent flow in the pool. Although the closed inlet pool avoids the harm of surface vortices that may occur, the prevention and control effect of another harmful vortex in the inlet pool, the wal...

AI Technical Summary

Problems solved by technology

However, due to the large flow velocity in the closed inlet pool, the traditional vortex elimination measures for the open inlet pool are not applicable

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