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

A vortex-induced vibration and monitoring device technology, which is applied in the direction of electromechanical devices, circuit devices, battery circuit devices, etc., can solve the problems of weakened riser performance and loss of material resources, and achieve the effect of convenient and flexible use and increased quantity

Inactive Publication Date: 2015-11-25
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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

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Embodiment Construction

[0033] The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.

[0034] Such as Figure 1 to Figure 16 As shown, a pendulum-type marine riser vortex-induced vibration self-generation monitoring device of the present invention includes a main casing 1 and a pendulum assembly 2 installed in the main casing 1, a gear assembly 3, a coil assembly and a pressure-resistant Cabin 7; the main shell 1 includes a hollow cylindrical shell 11, and a top cover 12 and a bottom cover 13 respectively arranged at the upper and lower ends of the hollow cylindrical shell 11, and a fixed rotating shaft 14 is erected upwards at the center of the bottom cover 13, and fixed A pendulum assembly 2 is inserted into the rotating shaft 14; the pendulum assembly 2 includes an eccentric weight 21 and a shaft sleeve 22 arranged at the axial center of the eccentric weight 21. The eccentric weight 2...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/18H02K7/116H02J7/00
Inventor 白旭秦伟乐智斌罗小芳
Owner JIANGSU UNIV OF SCI & TECH
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