A friction electrostatic power generation device based on the vibration of an offshore riser

Abstract

The embodiment of the invention discloses a friction electrostatic power generation device based on the vibration of an offshore riser, the device comprises a flexible insulating film coated and fixedon the surface of an offshore riser, a plurality of friction electrostatic generating units are encapsulated in the flexible insulating film, the flexible insulating film and the friction electrostatic generating units inside the flexible insulating film are co-deformed with the offshore riser, and the mechanical energy of the vibration deformation of the offshore riser under the excitation of the ocean current is converted into electric energy. The electric energy generated by the power generation device of the invention can completely provide enough electric energy for the monitoring systemof the offshore pipeline and the monitoring data transmission system, and can also be provided with an electric energy storage device, which can be stored in time when the electric energy is generated surplus, so as to ensure the continuous power supply of the system. The invention directly supports the wireless monitoring of the pipeline in the special environment such as the sea and the wireless transmission of the monitoring data from the technology, which is an important innovation of the underwater structure detection technology.

Description

technical field [0001] The invention relates to the technical field of energy harvesting based on the principle of friction power generation, in particular to a friction electrostatic power generation device based on the vibration of a marine riser. Background technique [0002] Oil and natural gas are important strategic resources related to national economic and social development. my country's marine recoverable oil reserves account for almost one-third of all recoverable reserves, and will be the top priority of the national energy strategy for a long time to come. . Offshore pipeline is the most important and fastest, economical and reliable transportation method for offshore oil and gas resources. However, the service environment of marine pipelines is extreme. As the service time continues to increase, defects such as corrosion and welds will seriously affect the safety of pipelines and become the main cause of pipeline accidents. Therefore, using monitoring tools to...

AI Technical Summary

Problems solved by technology

However, the current main energy storage and energy supply method of this type of sensor is chemical battery, which cannot supply power for a long time with the long-term service of ocean pipelines.

Images