VARIABLE RADIUS-OF-SPRING-FORCE TYPE SIMPLE RECIPROCATING PIVOT-ROTATIONAL VORTEX INDUCED VIBRATION ENERGY EXTRACTION DEVICE

摘要

PURPOSE: A spring action radius variable type and simple reciprocating pivot rotating type vortex-induced vibration energy extracting apparatus is provided to easily control the equivalent elasticity of a rotating type VIV energy extracting unit through a spring action radius control unit. CONSTITUTION: A spring action radius variable type and simple reciprocating pivot rotating type vortex-induced vibration energy extracting apparatus includes a vortex generating cylinder (100), a connecting member (200), a pivot shaft, a variable length control member (400), a spring (700), a generating unit (500), and a support (600). A vortex is generated by vortex separation on the surface of the vortex generating cylinder according to flow velocity, and the vortex generating cylinder implements vortex-induced vibration up and down. One end of the connecting member is fixed to the vortex generating cylinder. The pivot shaft is coupled to the other end of the connecting member. The variable length control member is fixed to the pivot shaft. One end of the variable length control member is connected to the spring. Energy, which is excited by the vortex-induced vibration according to the transmission of the longitudinal motion of the vortex generating cylinder through the pivot shaft, is converted into electric energy by the generating unit. The support supports the generating unit, and the other end of the spring is fixed to the same.