Pipeline leakage detector probe electric cable connection circuit

A cable connection and detector technology, which is applied to pipeline systems, instruments, measuring devices, etc., can solve problems such as maintenance, maintenance costs, fragility, and detection failure, and achieve a reliable effect of pipeline corrosion

Active Publication Date: 2008-12-31
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, all the probe cables are directly connected to the signal concentration module on the detector magnet module in the pipeline transmission medium, the result is thick and messy, not only fragile, resulting in detection failure, but also during repair and maintenance. more troublesome

Method used

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  • Pipeline leakage detector probe electric cable connection circuit
  • Pipeline leakage detector probe electric cable connection circuit

Examples

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Embodiment Construction

[0016] Embodiment. The specific embodiment of the present invention is described with this example and the present invention is described further. This example is an experimental circuit for the probe cable connection circuit of the Φ1016mm high-definition pipeline magnetic flux leakage corrosion detector, and its principle block diagram is as follows figure 1 As shown, the electrical schematic diagram is shown as figure 2 shown. The probe signal concentration module is a 32-way multiplex switch, ADG732BSU is selected, the 2-to-1 selector is MAX4624EZT-T, and the driver is AD8031AR. The circuit connection of every 30 probes is as follows: figure 2 , the DC power supply AVCC is connected to the F1-F30 terminals of 15 double probes through 15 insurances connected in parallel, the GND terminals of 15 double probes are grounded, and the two output terminals A Signal of 15 double probes are connected to 32 channels in total. The S1-S30 terminals of the switch ADG732BSU, the tw...

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Abstract

The invention discloses a buried steel pipeline magnetic-leakage corrosion detector probe cable connecting circuit (SCM) for the online detection of the corrosion degree of buried steel pipelines, which relates to the technical field of the measurement of magnetic variable, the measurement of the linear size of thickness, and pipeline systems, and is characterized in that a plurality of groups of 30-way probe wires are connected on the 32-way multi-way switch of a signal concentration module by a Lemo adaptor, every two outputs of the 32-way multi-way switch are connected with an alternative selector, the output of which is connected with a 55 or 20-core aviation head by a drive, while the 55 or 20-core aviation head is provided with SCM address signal wires respectively connected to the alternative selector, and a power wire connected to a plurality of 32-way multi-way switches, the alternative selector and the drive. The invention overcomes the deficiency of the prior art, and provides a reliable and simple and convenient pipeline magnetic-leakage corrosion detector probe cable connecting circuit for the online detection of the corrosion degree of the pipelines.

Description

technical field [0001] The invention is a probe cable connection circuit (SCM) for detecting the corrosion degree of the buried steel pipeline on-line for the magnetic leakage corrosion detector of the buried steel pipeline. The invention relates to the technical fields of measuring magnetic variables, measuring linear dimensions of thickness and pipeline systems. Background technique [0002] The buried steel pipelines in operation, especially the steel pipelines that have been in operation for a long time, will have a certain degree of corrosion. In order to ensure the safe operation of buried pipelines, online corrosion detection of pipelines is usually carried out regularly. At present, the internal detection method is used for pipeline corrosion detection, mainly the magnetic flux leakage detection method. As far as magnetic flux leakage detection is concerned, in addition to the rather complex and huge detector movement carrier, there must also be a large number of pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N17/00G01N27/83F17D5/00
Inventor 常连庚陈崇祺刘利威傅强周春
Owner BC P INC CHINA NAT PETROLEUM CORP
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