Multi-layer turning wheel structure of water turbine

Abstract

The invention discloses a multi-layer turning wheel structure of a water turbine. The multi-layer turning wheel structure comprises a spindle and at least two water inlet pipes. At least two turning wheels are mounted on the vertical spindle. The downstream end of each water inlet pipe is provided with a ball valve. The lower end of each ball valve is connected with a water distribution pipe. Thedownstream end of each water distribution pipe is provided with a spray nozzle. The spray nozzles are matched with the corresponding turning wheels in position. The at least two turning wheels are arranged on the spindle in an up-down mode. The spray nozzles are matched with the corresponding turning wheels in position. The multi-layer turning wheel structure has the beneficial effects that the water head and flow are utilized to a greater extent, and the unit capacity is substantially increased; moreover, the sizes of key components of the water turbine such as the turning wheels, the water distribution pipes and the ball valves are compressed, and the manufacturing and transportation difficulty is reduced; by adopting smaller unit components, the area of a workshop can be reduced, and the capital construction scale is reduced; more turning wheels provide more spray nozzles, and the radial force of bearings during operation can be reduced; the more spray nozzles provide wider flow regulation capacity, so that the unit keeps operating in a high-efficiency zone, and higher comprehensive benefits are obtained.

Description

technical field [0001] The invention relates to the field of hydropower generation, in particular to a multi-layer runner structure of a water turbine. Background technique [0002] Hydropower generation can convert the potential energy of high-altitude water bodies into electrical energy without any pollution and greenhouse gases generated during the power generation process. It is an important clean energy source. Moreover, water resources have the advantages of being inexhaustible and recyclable, which is in line with the development goals of human society. Chinese patent document CN108105012A disclosed on June 1, 2018 a "water turbine device for generating electricity using the natural flow of river water", including a water turbine and a water guide mechanism. The water turbine includes a runner, an upper shaft and a lower shaft, and the runner includes multiple long blades , a plurality of short vanes and at least two discs arranged at intervals, two adjacent discs ar...

AI Technical Summary

Problems solved by technology

The stand-alone capacity of the hydro turbine cannot be effectively broken through, and the power generation benefit is not significant

The key parts used in traditional large-scale turbines are oversized, difficult to manufacture and transport, and the cost cannot be effectively reduced, resulting in high overall construction costs, long-term return on investment, and unsatisfactory economics

The above problems have restricted the construction demand of hydropower stations, resulting in a large amount of water energy being wasted and unable to be used rationally.

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