Pump station front pool using triangular guide column to control vortexes

Abstract

The invention discloses a pumping station front pool using a triangular guide column to control vortexes, and belongs to the technical field of water conservancy projects. The pumping station front pool using the triangular guide column to control vortexes comprises the pump station front pool, the triangular guide column, a water gate chamber and a gate station partition pier, wherein the triangular guide column is arranged in a gate-station combined pump station front pool, the cross section of the triangular guide column is an equilateral right triangle, the right angle side length is b / 2,and b is the width of a water inlet pool (flow passage). The inclined side of the cross section of the triangular guide column is opposite to the direction of the incoming flow of the sluice side, oneright angle side is parallel to a central line of the gate station partition pier, the other right angle side is vertical to the central line of the gate station partition pier, the point D of the cross section is flush with the extension line of the partition pier between the gate stations, and the distance from the point D of the cross section to the head of the gate station partition pier is b / 2. The pumping station front pool using the triangular guide column to control the vortexes is suitable for various gate-station combined water inlet front pools, thereby improving the backflow sizeand position in front of the water inlet pool (flow passage), enabling water flow to enter the flow passage more smoothly, and enabling a water pump unit to operate more stably.

Description

technical field [0001] The invention relates to a pumping station forebay controlled vortex by using a triangular diversion column, which belongs to the technical field of hydraulic machinery, in particular to the field of pumping station engineering. Background technique [0002] The forebay of the pumping station is a hydraulic structure connecting the diversion channel and the pump inlet pool (flow channel), which provides good conditions for the operation of the pump. Especially when the sluice station combined pump station is running, when the sluice is closed, the efficiency of several pump units near the sluice is obviously reduced, mainly because the backflow in the sluice has an impact on the flow state of the water before the inlet pool (flow channel), resulting in Backflow and vortex are easy to be generated at the front pier of the pool (runner) (such as figure 2 As shown), it will have a great impact on the flow state of the inlet section of the rear inlet pool...

AI Technical Summary

Problems solved by technology

Especially when the sluice station combined pump station is running, when the sluice is closed, the efficiency of several pump units near the sluice is obviously reduced, mainly because the backflow in the sluice has an impact on the flow state of the water before the inlet pool (flow channel), resulting in Backflow and vortex are easy to be generated at the front pier of the pool (runner) (such as figure 2 As shown), it will have a great impact on the flow state of the inlet section of the rear inlet pool (flow channel), which will cause cavitation, cause pump vibration, and affect the safety of the pump unit

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