Water inlet structure vortex control device based on equal difference variable diameter arc

Abstract

The invention discloses a water inlet structure vortex control device based on an equal difference variable diameter arc, and belongs to the technical field of pumping station engineering. The width dimension of a water inlet structure and the suspension height of a horn tube are taken as restraint conditions, the numerical value of diameter changing time n is determined, the equal difference variable diameter arc is drawn to be a planar curve, a reinforcing bar is adopted for production according to the planar curve, and rust preventing paints are brushed after the production is completed. The stretching length of the equal difference variable diameter arc is determined according to the suspension height of the horn tube, the planar curve is stretched to form the vortex control device, reinforcement is conducted on a spiral line of the vortex control device at interval using a reinforcing bar pull rod welding technology, the whole vortex control device is placed in a cylindrical groove of a bottom plate of the water inlet structure after the reinforcement is completed, sealing is conducted by using plain concrete, it is ensured that the elevation and flatness of the sealed top face and the top face of the water inlet structure are the same, so that the overall stability of the vortex control device is increased, and the problem of the loosening of the whole vortex control device caused by the long-term existence of grounding bolts in water and the vibration of a running unit is prevented.

Description

technical field [0001] The invention relates to a water inlet structure of a wet chamber type pump house and a block base type pump house, in particular to a box culvert type water inlet channel and an open water inlet pool, in particular to a water inlet structure based on an equal difference variable diameter arc line. A water structure vortex control device belongs to the technical field of pump station engineering. Background technique [0002] Small and medium-sized irrigation and drainage pumping stations often use wet chamber type pump houses. The water inlet structure of this pump house mostly adopts box culvert type water inlet structure or open water inlet pool. of structures. For axial flow pumps and guide vane mixed flow pumps, the horn tube and the suction tube are the transition sections between the inlet structure and the inlet of the impeller chamber, and the internal flow state of the horn tube and the suction tube must be affected by the internal flow stat...

AI Technical Summary

Problems solved by technology

Aiming at the technical problems that the existing solid vortex elimination device has many consumables and the existing hollow vortex elimination device has poor structural stability faced by the water inlet structure of small and medium-sized pumping stations, a design is designed that can suppress the generation of attached bottom vortex and has less consumables and good structural stability. The vortex control device has great significance and application value. It can not only solve the actual vortex elimination problem of pumping station engineering, improve water flow conditions, but also reduce processing and manufacturing costs, increase the durability and reliability of the vortex elimination device, and provide Industrial pumping stations facing the same problem can also use this vortex control device

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