Flowing water power generation device achieving automatic pitch varying and pitch varying method thereof

Abstract

The invention discloses a flowing water power generation device achieving automatic pitch varying and belongs to the field of hydroelectric generation technologies. The power generation device comprises floating platforms, generators and anchoring devices. The floating platforms can float on the water surface, the generators are arranged on the floating platforms, and the anchoring devices are used for fixing the floating platforms. Flowing water channels which are through in the front and back direction are formed in the lower portions of the floating platforms, belt wheels are arranged inside the flowing water channels and can rotate in the longitudinal direction of the flowing water channels, and rotating shafts of the belt wheels are connected with rotating shafts of the generators through transmission mechanisms. The flowing water power generation device further comprises a set of blades movably connected with the outer rings of the belt wheels and a set of limiting mechanisms corresponding to the blades one by one. The limiting mechanisms can make the blades corresponding to the limiting mechanisms be in a working state, and make the blades corresponding to the limiting mechanisms be in a non-working state, wherein the blades in the working state and the flowing water direction form an included angle below the belt wheels, the blades in the non-working state and the flowing water direction are parallel basically above the belt wheels, and the length of the blades can be actively adjusted. The invention further discloses a pitch varying method of the power generation device. The power generation device is simple in structure, high in energy conversion efficiency and wide in application range.

Description

technical field [0001] The invention relates to a hydroelectric power generation device, in particular to an automatic pitch-variable flowing water power generation device and a pitch-variable method thereof, belonging to the technical field of hydropower generation. Background technique [0002] The energy shortage and environmental pollution in modern society are becoming more and more serious. Countries all over the world are looking for new renewable energy to replace coal and oil. At present, new energy represented by wind energy and solar energy has entered the practical stage, but due to their low energy density per unit area, large investment, and the obtained electric energy cannot compete with thermal power and hydropower prices, their promotion is limited. [0003] Hydropower is a kind of green and renewable energy. my country is rich in water conservancy resources. If the water conservancy resources are utilized, it will produce huge social and economic benefits....

AI Technical Summary

Problems solved by technology

At present, the obstacle of tidal current power generation mainly lies in the high cost of power generation. The high cost of power generation is caused by the high cost of construction and operation, and the low power generation; the reason for the high cost is due to technical problems, and there is no mass production at present.

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