A telescopic pipe flow energy harvester

Abstract

The invention relates to a telescopic pipeline flow energy harvester, which belongs to the technical field of new energy and pipeline monitoring. The pipe is equipped with a shell, and the end of the side wall of the shell is equipped with an end cover; the center of the vertical plate of the bracket is provided with an inner pin hole, and the upper and lower ends of the same side of the vertical plate are provided with horizontal plates with inclined mounting surfaces; the left and right sides of the exciter There are left and right pins on the sides, and multiple cams are provided on the upper and lower sides along the axial direction of the left and right pins. The cam surface is composed of a bottom surface, an inclined surface and a top surface connected in sequence; the actuator is placed in the shell and the left pin passes through the bottom wall of the shell. The end of the left pin is equipped with a blunt body; the left pin on the left and right sides of the bottom wall of the shell is respectively covered with a support spring and a buffer spring; the vertical plate of the bracket is installed on the right pin through the inner pin hole, and the left and right sides of the vertical The right pin is respectively covered with a left spring and a right spring; one end of the piezoelectric vibrator is installed on the mounting surface of the bracket, and the piezoelectric vibrator is a cantilever beam structure bonded by a substrate and a piezoelectric sheet. It leans against the cam surface, and the top block is in contact with the midpoint of the inclined surface of the cam when it is not working.

Description

technical field [0001] The invention belongs to the technical field of new energy and oil and gas pipeline monitoring systems, and in particular relates to a telescopic pipeline flow energy harvester. Background technique [0002] During the operation of oil and gas pipelines, oil and gas pipeline leakage incidents occur frequently due to natural corrosion, force majeure of nature, especially man-made theft, which not only caused huge economic losses, but also caused serious pollution to the surrounding natural environment. In the past, it was maintained by manual inspection methods, but because the pipeline laying distance is long, and it is often in an inaccessible or inconvenient place, it is difficult to detect leakage in time and repair it in time, so people have proposed various types of pipeline leakage monitoring or anti-theft systems. , some technologies are relatively mature; but the power supply problem of the oil and gas pipeline monitoring system has not been we...

AI Technical Summary

Problems solved by technology

[0002] During the operation of oil and gas pipelines, due to natural corrosion, natural force majeure, especially man-made theft, oil and gas pipeline leakage incidents occur from time to time, which not only caused huge economic losses, but also caused serious pollution to the surrounding natural environment.

In the past, it was maintained by manual inspection methods, but because the pipeline laying distance is long, and it is often in an inaccessible or inconvenient place, it is difficult to detect leakage in time and repair it in time, so people have proposed various types of pipeline leakage monitoring or anti-theft systems. , some technologies are relatively mature; but the power supply problem of the oil and gas pipeline monitoring system has not been well resolved: the cost of laying cables is high and it is easy to be cut off by criminals, which will affect the normal operation of the monitoring system. Frequent replacement, once the battery is low and not replaced in time, the remote transmission of monitoring information cannot be completed

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