| 摘要 |
<p>A Phi-shaped wind wheel structure of a vertical axis wind turbine comprises bow-shaped blades (2) consisting of chords and corresponding arcs. Each blade is formed by connecting more than two blade units (21, 22, 23) and at the connection of the blade unit is provided with a supporting arm (213), ends of which are respectively attached to the chord and the arc. The blade unit is surrounded by a segmented chord section (212, 222, 232), a segmented arc section (211, 221, 231) and a supporting arm. Trolleys (6) are provided respectively at the upper and lower ends of the chord section of the blade unit. A first connection mechanism is provided between the arc sections of adjacent blade units and a second connection mechanism is provided between the chord sections of adjacent blade units. Also disclosed is an assembly method of the wind wheel structure, including the following steps: hoisting each blade unit in sequence with a crane on the top of a central tower column of the wind turbine so as to implement the assembly of one blade; and then hoisting the other blades to implement the assembly of the whole wind wheel.</p> |
