A horizontal shaft impact water turbine with high power generation efficiency

Abstract

The invention relates to a horizontal shaft impulse turbine with high power generating efficiency. The horizontal shaft impulse turbine comprises a turbine disc, a water guiding mechanism and a plurality of water buckets, wherein a first baffle and a second baffle are arranged in each water bucket; the water guiding mechanism comprises a water guiding tank; the water guiding tank comprises a casing; a plurality of water guiding units are arranged in the casing; each water guiding unit comprises a driving unit, a blocking unit, a water cylinder, a piston, a first water pipe, a second water pipe and a water outlet pipe. According to the horizontal shaft impulse turbine with the high power generating efficiency, more gravitational potential energy is converted into kinetic energy of the turbine disc when the water buckets downward rotate by the first baffles and the second baffles; meanwhile, when the water buckets upward rotate, a gravity load is reduced, further the rotating speed of the turbine disc is guaranteed, and the power generating efficiency is improved; besides, the plurality of water guiding units cooperatively import water current into a spray head, and the guiding speed of the water current is adjusted by adjusting the rotating speed of a first driving motor, therefore, the speed of the water current is changed while vertical cross section of the jet water current is ensured, the rotating speed of the turbine disc is remarkably changed and the power generating power is adjusted.

Description

technical field [0001] The invention relates to the field of hydropower generation, in particular to a horizontal-shaft impact water turbine with high power generation efficiency. Background technique [0002] The impact turbine is a turbine that uses the kinetic energy of the high-pressure water jet to do work. The water in the high-head reservoir is led to the turbine through the pressure pipe. The high-pressure water passes through the nozzle of the turbine and becomes a high-speed jet of water, rushing to the water bucket of the turbine to make the turbine rotate and do work. [0003] Although the existing impact turbines can meet the demand for power generation, during operation, since the nozzles spray water to the water bucket, the water bucket will drive the wheel to rotate, but the direction of the water flow after spraying will also follow the direction of the wheel. The direction of rotation is opposite, and the water flow in the opposite direction is easy to spra...

AI Technical Summary

Problems solved by technology

[0003] Although the existing impact turbines can meet the demand for power generation, during operation, since the nozzles spray water to the water bucket, the water bucket will drive the wheel to rotate, but the direction of the water flow after spraying will also follow the direction of the wheel. The direction of rotation is opposite, and the water flow in the opposite direction is easy to spray on the next water bucket, which will produce certain resistance to the rotation of the wheel, resulting in a decrease in the speed of the wheel, and the low power generation of the generator per unit time. Not only that, but the impact of the nozzle Although it can meet the function of adjusting the speed of the impacting water flow, the method of compressing the water flow is usually used to adjust the water flow speed. Although the speed of the water flow increases, due to the constant output of the water flow inside the nozzle, the vertical cross-sectional area of ​​the water flow also decreases. , as long as one goes down, the kinetic energy of the water bucket impacting on the wheel disk does not change much per unit time, and the effect of adjusting the speed of the turbine is not obvious

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