Double-shaft water turbine device with S-shaped blades and composite film blades

Abstract

The invention discloses a double-shaft water turbine device with S-shaped blades and composite film blades. According to the double-shaft water turbine device, film blade structures are installed through fixed rectangular blade supports, the number of additional blades of a unit water turbine structure can be increased, meanwhile, the film blades can be stressed on three water surfaces to push transmission shafts to rotate in the same direction, the film blades on the rear sides of the rectangular blade supports facing the water flow direction can form a certain flow guide phenomenon, reverse torque generated on a reverse water surface is reduced, the whole water turbine has a high energy utilization coefficient, meanwhile, the S-shaped resistance blades are installed on the transmission shafts, the overall performance and the self-starting performance are further improved, dead points of the water turbine are avoided, the rectangular frames are used in cooperation with the thin film material, the hysteresis effect generated by inertia of the blades in the rigid swing type blade design can be reduced, meanwhile, the blade cavitation effect generated by sudden pressure change is avoided at the tails of the blades, and the service life of the blades is prolonged.

Description

Technical field[0001]The invention belongs to the field of marine energy generation technology, and in particular to a S-shaped blade composite film blade double-axis turbine device.Background technique[0002]With the modernization of urbanization and the rapid development of industrialization, energy has already become an important factor affecting the rapid economic development of economic and social. Commonly used traditional energy, such as coal, oil, natural gas, etc. can not be regenerated in a short time in a short time, and while consumes damage to the natural environment. For the sustainable development of the environment, the replacement of new energy sources is imminent.[0003]The ocean can be used as a new type of green renewable energy, mainly including tidal energy, trend energy and wavy energy. my country has a longer coastline and the vast sea area, and the ocean can be reserved. It is one of the largest floating energy density in the world. The average power density o...

AI Technical Summary

Problems solved by technology

However, most of the existing vertical axis turbines use the circular rotation of the blades to convert the ocean current energy into mechanical energy. According to the existing research results, the main power generation area is the windward side, but the windward side accounts for a larger proportion of the circular rotation. Low, combined with the existence of a large interception area to generate resistance or no power, resulting in overall low efficiency

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