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Galloping power generation device

A technology of power generation device and vibrator, which is applied in the fields of ocean energy power generation, engine components, machines/engines, etc., can solve problems such as failure to realize complex ocean conditions, development and utilization still to be studied, etc., and achieve the effect of efficient utilization of hydrodynamic energy

Active Publication Date: 2019-05-24
SHANGHAI JIAO TONG UNIV
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  • Description
  • Claims
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Problems solved by technology

However, due to its structural design limitations, it has not been able to work effectively in the complex ocean conditions where the real ocean riser is located.
Due to the changing direction of ocean currents and the research progress of the galloping mechanism itself, the development and utilization of this direction is yet to be studied

Method used

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  • Galloping power generation device
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Embodiment approach

[0068] The galloping power generation device uses a cylindrical vibration exciter 1. Compared with other shapes of the vibration exciter 1, the cylindrical itself has relatively stable physical shape and other characteristics under real sea conditions, and has better resistance to asymmetrical sections. Seawater erosion and anti-microbial adhesion performance; In addition, in terms of processing technology, the cylindrical shape is also simpler and more economical than the excitation member 1 with other cross-sectional shapes. The galloping power generation device is mainly divided into four parts, that is, the rotatable elastic vibrator part, the double rotatable separation disc mechanism, the vertical straightener 38 and the electromagnetic induction mechanism. The arrangement of the elastic vibrator part and the separation plate mechanism converts the hydrodynamic force into the vibration kinetic energy of the vibration excitation part 1, and then drives the iron column 29 i...

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Abstract

The invention provides a galloping power generation device. The galloping power generation device comprises a vibrator mechanism, an electromagnet sensing mechanism and a separating disc mechanism; the vibrator mechanism realizes galloping through fluid, the vibrator mechanism generates magnetic line cutting movement relative to the electromagnet sensing mechanism during galloping, and the electromagnet sensing mechanism generates electric currents; and the vibrator mechanism and the separating disc mechanism are arranged in the flowing direction of the fluid in sequence. According to the galloping power generation device, a rigid separating disc which is fixed in a relative-vibration is additionally arranged behind a cylinder to trigger galloping, substantial increasing of a vibration amplitude value of the cylinder under the flowing speed that the ocean can achieve is realized, and the hydrodynamic force energy which can be extracted is substantially increased to efficiently use thehydrodynamic force.

Description

technical field [0001] The invention relates to the field of power generation equipment, in particular to a galloping power generation device, in particular to a flow direction self-adaptive galloping power generation device using a rigid separation disc. Background technique [0002] Flow-induced vibration is a physical phenomenon that a blunt body that is elastically supported or allowed to undergo elastic deformation will vibrate under certain flow conditions. This phenomenon can lead to fatigue failure of offshore structures such as oil pipelines (slender flexible bodies). Flow-induced vibration is divided into vortex-induced vibration and galloping vibration. The characteristic of vortex-induced vibration is that for different reduced velocities, there will be initial branch, upper branch and attenuation branch. Classical vortex-induced vibration will first increase with the increase of reduced velocity. A process of post-decay. In comparison, the characteristic of ga...

Claims

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Application Information

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IPC IPC(8): F03G7/08F03B17/06
CPCY02E10/30
Inventor 陈雯煜王嘉松梁盛平胡中明郑瀚旭
Owner SHANGHAI JIAO TONG UNIV
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