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Adjustable pipeline vibration signal acquisition enhancement device

A technology of vibration signal and enhancement device, which is used in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc. The effect of improved noise ratio, input enhancement, and improved detection performance

Inactive Publication Date: 2011-09-07
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the sensor collects pipeline vibration signals, it only collects the vibration of the pipeline in contact with the sensor or the sensor seat. When propagating to the detected position, the vibration may have become very weak, and the sensor only collects the vibration in a very limited area, so the signal-to-noise ratio of the output signal of the sensor is extremely low, making the detection performance greatly reduced or even impossible to detect

Method used

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  • Adjustable pipeline vibration signal acquisition enhancement device
  • Adjustable pipeline vibration signal acquisition enhancement device
  • Adjustable pipeline vibration signal acquisition enhancement device

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Embodiment Construction

[0017] In the present invention, the structure of the folding support 1 is very similar to the folding fan in the traditional Chinese craft. In order to better explain the solution of the present invention, we might as well introduce the structure of the folding fan: in the folding fan process, the frame made of bamboo is called "fan bone". (femoral)", the two thick skeletons on the outermost sides of the fan bone are called large bones, and the skeleton between the two large bones is called small bone, and one end of the large bone and small bone is connected by coaxial rotation.

[0018] The difference between the folding bracket 1 of the present invention and the fan bone is that the lengths of all the large bones and small bones of the folded fan bone are basically equal, while the lengths of the probes 1-1 that respectively constitute the large bones and small bones in the present invention are unequal , the lengths of the probes 1-1 are distributed according to the follow...

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Abstract

The invention discloses an adjustable pipeline vibration signal acquisition enhancement device. The device consists of a folding bracket and a sensor bracket; the folding bracket is of fan ribs, two probes on the two outermost sides of the folding bracket form big fan ribs, and probes on the inner side of the folding bracket form small fan ribs; one end of each of the big ribs and the small ribs is in coaxial transmission connection with the sensor bracket; and the probes become short from the two sides to the middle part.

Description

technical field [0001] The invention relates to a pipeline leak detection technology, in particular to an adjustable pipeline vibration signal collection enhancement device. Background technique [0002] In all kinds of pressure pipelines, such as water supply, oil and gas pipelines, due to various man-made or natural reasons, pipeline leakage occurs from time to time, causing a lot of waste of water, oil and gas resources. Therefore, it is necessary to find out in time And accurately locate these pipeline leaks, and take remedial measures. [0003] At present, various types of leak detection and positioning equipment using acoustic signal processing methods have been widely used in the detection and positioning of pipeline leaks, such as listening instruments, digital correlators, etc., such equipment applications use vibration (acoustic) sensors to obtain leakage The pipeline vibration (acoustic) signal caused by the pipeline is analyzed and processed, and the leak detect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/02
Inventor 杨进文玉梅李平
Owner CHONGQING UNIV