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Power generation device for oil and gas pipeline monitoring system

A monitoring system and power generation device technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the problem of oil and gas pipeline monitoring and anti-theft alarm system power supply vibration type Problems such as the application of piezoelectric power generation devices, to achieve the effect of non-contact axial excitation and deformation protection, non-contact impact and noise, and strong power generation capacity

Active Publication Date: 2014-10-15
ZHEJIANG NORMAL UNIVERSITY +2
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AI Technical Summary

Problems solved by technology

[0004] The present invention provides a power generation device for oil and gas pipeline monitoring system to solve the power supply problem of oil and gas pipeline monitoring and anti-theft alarm system as well as the application limitations of the existing vibrating piezoelectric power generation device

Method used

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  • Power generation device for oil and gas pipeline monitoring system
  • Power generation device for oil and gas pipeline monitoring system
  • Power generation device for oil and gas pipeline monitoring system

Examples

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Embodiment Construction

[0016] The left end cover 1 is installed on the outside of the pipe 11 by screws; the shell 2 is fixed with screws between the left end cover 1 and the right end cover 1', and piezoelectric transducers 4 are alternately sleeved on the inner wall of the shell 2 And the inner pressure ring 3, the piezoelectric transducer 4 and the inner pressure ring 3 are crimped between the left end cover 1 and the right end cover 1'; the set of piezoelectric transducers 4 refers to the metal substrate 401 A composite structure formed by bonding multiple fan-shaped cantilever beams 4011 and fan-shaped piezoelectric wafers 402; a pair of fixed magnet one 5 and fixed magnet two 5' opposite magnetic poles are installed on the free space of the piezoelectric transducer 4 through screws. end; the fixed magnet one 5 on the free end of the piezoelectric transducer 4 of the same group and the fixed magnet two 5' magnetic poles have the same axial configuration direction, and the fixed magnet on the fre...

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Abstract

The invention relates to an electricity generation device for an oil gas pipeline monitoring system, belonging to the field of oil gas pipeline monitoring and piezoelectric electricity generation. The electricity generation device is characterized in that a left end cover is arranged at the outer side of a pipeline; a shell is fixed between the left end cover and a right end cover; a piezoelectric transducer is sleeved on the inner wall of the shell, and the piezoelectric transducer is formed by adhering a metal base plate and a piezoelectric crystal plate; different magnetic poles of a pair of fixed magnets are oppositely arranged on the free end of the piezoelectric transducer; a main shaft is arranged on the left end cover and the right end cover through a bearing; an impeller is arranged on a main shaft end and placed in a pipeline; and a main shaft spline is sleeved with a magnet ring 1 and a magnet ring 2 which are provided with protruded teeth and opposite radial polarization directions. In the invention, the kinetic energy of an oil gas is converted into electric energy by utilizing the piezoelectric transducer, and therefore, reliable and sufficient energy can be obtained without paving cables or batteries; and the piezoelectric transducer is excited in a non-contact way and protected through two-way magnetic coupling action, and therefore, high reliability is achieved and higher electricity generation capacity is achieved during high rotating speed, lower rotating speed and constant rotating speed of the main shaft.

Description

technical field [0001] The invention belongs to the technical field of an oil and gas pipeline monitoring system and piezoelectric power generation, and in particular relates to a power generation device used in an oil and gas pipeline monitoring system. Background technique [0002] During the long-term service of oil and gas pipelines, leakage incidents occur frequently due to natural corrosion, force majeure of nature, and especially man-made theft. Frequent pipeline leakage not only causes huge economic losses, but also causes damage to the surrounding natural environment. severe pollution. In the past, regular manual inspections were often used for maintenance. However, due to the long laying distance of oil and gas pipelines and the fact that they are often located in inaccessible or inconvenient places, regular inspections are difficult to find leaks and maintain them in time. Therefore, various types have been proposed for pipeline leakage monitoring or anti-theft s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D15/10H02N2/18
Inventor 阚君武于丽王淑云程光明李胜杰都明亮刘座铭
Owner ZHEJIANG NORMAL UNIVERSITY
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