Pendulum type marine riser vortex-induced vibration self-generation electricity monitoring device

Abstract

The invention discloses a pendulum type marine riser vortex-induced vibration self-generation electricity monitoring device which comprises a main shell, a pendulum assembly, a gear assembly, a coil assembly and a pressure withstand cabin, wherein the pendulum assembly, the gear assembly, the coil assembly and the pressure withstand cabin are arranged in the main shell, the main shell vibrates ina reciprocating way with a riser and the pendulum assembly is still kept at an original position due to an inertia effect when the riser is displaced, therefore, the pendulum assembly generates circular motion around a fixed rotary shaft, the motion of the pendulum assembly drives the motion of a primary gear, a permanent magnet is induced to rotate through a speed changing effect of a gear mechanism in a gear box, and a magnetic induction line is cut to generate induced current. The pendulum type marine riser vortex-induced vibration self-generation electricity monitoring device is ingeniousin mechanism and wide in application range.

Description

technical field [0001] The invention relates to a monitoring device for the Code of the Sea, in particular to a pendulum-type marine riser vortex-induced vibration self-generating monitoring device. Background technique [0002] With the increase of human demand for energy, people are forced to shift the exploitation of resources from land to sea, so the proportion of offshore platforms in the resource structure is gradually increasing. At present, the oil and gas resources on the seabed are usually obtained from the seabed through drilling technology, and then transported to the oil production platform on the water surface, FPSO (floating production storage ship), FLNG (floating liquefied natural gas ship), etc. for processing and storage. Wait for processing. The riser plays a pivotal role in the entire resource mining and processing. As the lifeline of oil and gas transportation, the riser largely guarantees the smooth progress of the entire platform mining and productio...

AI Technical Summary

Problems solved by technology

However, the entire monitoring system needs power supply, and the existing battery technology is difficult to maintain the monitoring needs. For example, laying out cables will cause huge loss of manpower and material resources and weaken the performance of the riser.

[0004] In the prior art, there is no relevant technical proposal for the use of marine riser vortex-induced vibration power generation. The existing domestic vortex-induced vibration power generation device is limited to the up-and-down reciprocating vibration of the straight rod in the ordinary water flow affected by the water flow for power generation.

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