Vertical Shaft Multistage Pelton Turbine

Abstract

The invention relates to a vertical shaft multistage impulse water turbine. The vertical shaft multistage impulse water turbine is simple in structure and convenient to manufacture, so that the larger power per unit is obtained, the unit parameter level of a unit is improved, meanwhile, the plane excavation size is reduced, and damage to the environment is reduced. According to the technical scheme, the water turbine comprises a water inlet pipe, a power generator and a water turbine main shaft connected to the power generator; a plurality of runner cavities which are distributed on one straight line up and down are arranged and are communicated with a tail water channel, the water turbine main shaft sequentially penetrates all runner cavities from top to bottom, and vertical shaft water hopper type runners are arranged on the water turbine main shaft in a manner of corresponding to the runner cavities; a water distribution annular pipe surrounding each cavity is arranged in a manner of corresponding to each runner cavity, the water distribution annular pipes are communicated with the water inlet pipes, a plurality of spraying pipes and spraying needles are evenly connected to the water distribution annular pipes, water outlets of the spraying pipes and the spraying needles are located in the runner cavities and are arranged in a manner of being aligned with the vertical shaft water hopper type runners in the cavities.

Description

technical field [0001] The invention relates to a vertical shaft multi-stage impact water turbine. Applicable to water conservancy and hydropower projects. Background technique [0002] High-head hydropower stations over 500m often choose impulse turbine generator sets. The impulse turbine has two types: vertical shaft single runner, multi-nozzle and horizontal single runner or double runner, single nozzle or double nozzle. Among them, the water head of the vertical shaft single runner can reach 1800m, the number of nozzles can reach up to 6, and the current maximum single unit capacity is 420MW; while the single runner of the horizontal impact unit can generally only be equipped with 2 nozzles, so the horizontal impact is limited. The stand-alone capacity of the time group. [0003] Generally speaking, the vertical shaft single-stage impact runner is limited by the stress level of the runner and the number of runner nozzles. The capacity of the unit has not broken through...

AI Technical Summary

Problems solved by technology

Among them, the water head of the vertical shaft single runner can reach 1800m, the number of nozzles can reach up to 6, and the current maximum single unit capacity is 420MW; while the single runner of the horizontal impact unit can generally only be equipped with 2 nozzles, so the horizontal impact is limited. Stand-alone capacity of time group

Images