Hybrid lift type impeller

Abstract

The invention discloses a hybrid lift type impeller. The hybrid lift type impeller comprises a rotating shaft, two or more than two lift type vanes, an electric generator and a casing, the lift type vanes are arranged on the rotating shaft, the electric generator is connected with the rotating shaft, the casing is provided with a fluid inlet and a fluid outlet, a tapered flow guide cover is disposed in the middle in the casing, the electric generator is mounted in the tapered flow guide cover, the lift type vanes are located in the fluid outlet, an annular channel is formed between the tapered flow guide cover and the casing, a flow gathering chamber is formed between the lift type vanes and the casing, the annular channel is communicated with the flow gathering chamber, grids are annularly distributed at an outlet of the flow gathering chamber, and the grids are parallel to the lift type vanes. By means of the hybrid lift type impeller, water flow changes from transverse flowing to longitudinal flowing under the combined action of an inlet flow channel, the flow guide cover, the annular flow channel, the flow gathering chamber and the grids sequentially, the water flow flows into a vane working area along the normal direction of the vane rotating circle, so that the lift type vanes can obtain an optimal fluid dynamic field, and the working capacity of the vanes is improved.

Description

technical field [0001] The invention relates to a novel wind power machine and a sea current energy water turbine. Background technique [0002] At present, most water turbines use high water head pressure to do work, and this type of water turbine has higher efficiency when the water head is high. However, for rivers with low water head or even some slight water heads, if traditional hydraulic turbines that rely on pressure to do work are used to convert energy, the efficiency is low and the economy is poor. [0003] In the utilization of ocean current energy, there are also horizontal-axis turbines and vertical-axis lift-type turbines. These turbines have their own advantages and disadvantages. For horizontal-axis turbines, horizontal-axis turbines use lift-type blades, which have faster speeds and higher energy utilization. Relatively mature, and thus widely used. Although the efficiency of the horizontal axis wind turbine is high, its main working area is concentrated ...

AI Technical Summary

Problems solved by technology

Moreover, although the traditional lift type vertical shaft turbine does not have the problem of direction adaptability

However, the feature of its blades absorbing work twice makes it have the problem that the first work ability is insufficient, the second work ability is extremely weak, and the overall work ability is weak.

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