Laminated piezoelectric downhole energy collection device

A stacked piezoelectric and energy harvesting technology, applied in circuit devices, battery circuit devices, piezoelectric effect/electrostrictive or magnetostrictive motors, etc., can solve problems such as energy harvesting and conversion problems, and increase output The effect of power

Inactive Publication Date: 2015-10-28
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] In view of the defects in the prior art, the object of the present invention is to provide a laminated piezoelectric downhole energy collection device, which solves the problem of energy collection and conversion in existing water injection wells, and uses the downhole fluid flow to generate fluid-solid coupling effects, through Piezoelectric effect, which converts mechanical energy into electrical energy to charge downhole batteries

Method used

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  • Laminated piezoelectric downhole energy collection device
  • Laminated piezoelectric downhole energy collection device
  • Laminated piezoelectric downhole energy collection device

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0031] Such as Figure 1-8 As shown, this embodiment provides a laminated piezoelectric downhole energy harvesting device, including: a pipeline 1, a support frame 2, a laminated piezoelectric sheet 3, a mass 4, a wire 5, a rectifier circuit 6, a rechargeable battery 7 and Electrode point 8, where:

[0032] A round hole is opened on one side of the pipeline 1 for accessing the support frame 2;

[0033] The support frame 2 plays the role of supporting the laminated piezoelectric sheet 3, the lead...

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Abstract

The present invention provides a laminated piezoelectric downhole energy collection device, which comprises a pipeline, a support frame, a laminated piezoelectric sheet, a mass block, a rectifier circuit and a rechargeable battery. The support frame is connected to the pipeline in the sealed manner and extends out of the pipeline. The support frame has the functions of supporting the laminated piezoelectric sheet, leading out a wire and serving as a bluff body. One end of the laminated piezoelectric sheet is fixedly connected with the support frame, and the other end of the laminated piezoelectric sheet is connected with the mass block. One end of the rectifier circuit is connected to the wire, and the other end of the rectifier circuit is connected to the changing battery. The electric energy generated by the laminated piezoelectric sheet is transmitted to the rectifier circuit via the wire, and is directly used for charging the rechargeable battery after being converted by the rectifier circuit. By means of the device, the electricity is generated directly under the fluid-solid coupled interaction effect inside the pipeline. Therefore, the device is simple in structure and convenient to install. The device can be used for vibration-based power generation in an oil injection well to directly charge downhole batteries.

Description

technical field [0001] The invention relates to the technical field of power generation through vibration energy collection. Specifically, it relates to a power generation technology for collecting energy from fluid flow in a water injection well. Background technique [0002] With the development and progress of technology, wellbore control engineering is developing towards automation and intelligence, and the demand for long-term underground power supply is becoming more and more urgent. At present, external power supply is mainly used or underground energy supply is achieved by installing power supply batteries. However, these methods are not only complicated in structure and high in cost, but also the process of replacing batteries is cumbersome and time-consuming. Therefore, it has become a research hotspot to directly use all kinds of downhole energy, such as mechanical vibration energy, fluid flow energy, etc., to convert it into electrical energy, and directly charg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18H02J7/32
Inventor 刘景全王涛唐刚侯诚杨斌
Owner SHANGHAI JIAO TONG UNIV
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