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Cathodic protection monitoring probe, cathodic protection monitoring probe monitoring system, and manufacturing method and monitoring method thereof

A technology of cathodic protection and monitoring probes, which is applied in the field of cathodic protection monitoring probes and cathodic protection monitoring probe monitoring systems, which can solve problems such as difficult monitoring of pipeline cathodic protection potentials, and achieve the effects of ensuring measurement accuracy, high stability, and avoiding pollution

Inactive Publication Date: 2012-08-15
TIANJIN WATER RESOURCES RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The IR drop in the cathodic protection potential measurement will also affect the potential measurement results. In order to eliminate the IR drop, the best method is the power-off method. However, the power-off method is also limited by some conditions. The conventional power-off method is due to stray current. It is difficult to monitor the real pipeline cathodic protection potential due to the influence of compensation current

Method used

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  • Cathodic protection monitoring probe, cathodic protection monitoring probe monitoring system, and manufacturing method and monitoring method thereof
  • Cathodic protection monitoring probe, cathodic protection monitoring probe monitoring system, and manufacturing method and monitoring method thereof
  • Cathodic protection monitoring probe, cathodic protection monitoring probe monitoring system, and manufacturing method and monitoring method thereof

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Experimental program
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Effect test

Embodiment 1

[0126] The main body of the probe (17) is cylindrical as a whole, and is composed of the probe core (1), the self-corrosion electrode (2), the cathode electrode (3), the reference electrode (4), the surface layer (5), the lead wire (6), Composed of electrode threading hole (7), cathode threading hole (8), sealing layer (9), fixing layer (10), probe core cavity (18), reference electrode (19) and lead cable (24), the probe core (1) The overall shape is cylindrical, with a hollow blind hole, and the hollow hole is the probe core cavity (18).

[0127] The upper part of the probe core (1) is provided with an electrode threading hole (7), and the electrode threading hole (7) runs through the cylinder wall of the probe core (1) and communicates with the probe core cavity (18). The lower part of the probe core body (1) is provided with a cathode threading hole (8), and the cathode threading hole (8) runs through the cylinder wall of the probe core body (1) and communicates with the pr...

Embodiment 2

[0137] The probe main body (17) is arranged next to the pipeline (21) under the ground surface (23), and the pipelines (21) are connected to each other to form a pipeline. At least one probe embedding point is set every 1 km along the pipeline, and each probe embedding point is at At least 2 sets of probe bodies (17) are arranged around the pipeline (21). The probe bodies (17) are buried in parallel around the pipeline (21). The distance between the probe bodies (17) and the pipeline (21) is 0.2-0.8m. (17) and the soil between the pipeline (21) produce a smaller voltage drop.

[0138] The probe main body (17), wiring test box (16), main controller (30), engineering anode electrode (20) and pipeline electrode (29) constitute the cathodic protection monitoring probe monitoring system, and the lead cable (24) of the probe main body (17) ) is connected to the terminal (27) on one of the terminal blocks (26) of the wiring test box (16), the yellow wire of the self-corrosion electro...

Embodiment 3

[0147] The probe embedding point is provided with 2 groups of probe bodies (17) around the pipeline (21), and at least 2 groups of probe bodies (17) are buried in one probe embedding point connected to the wiring test box (16), and one group of probe bodies (17) One end of the lead cable (24) is connected to the terminal post (27) on one of the terminal blocks (26) of the wiring test box (16), and the self-corrosion electrode (2) at one end of the lead cable (24) The yellow wires of the cathode electrode (3) and the red wires of the reference electrode (4) are respectively connected to the binding posts (27) on one of the terminal blocks (26); the other group of probe main bodies ( One end of the lead cable (24) of 17) is connected to the terminal post (27) on one of the terminal blocks (26) of the connection test box (16), and the self-corrosion electrode of one end of the lead cable (24) The yellow wire of (2), the green wire of the cathode electrode (3) and the red wire of ...

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Abstract

The invention discloses a cathodic protection monitoring probe, a cathodic protection monitoring probe monitoring system, and a manufacturing method and a monitoring method thereof. The probe main body is integrally cylindrical; the probe core is integrally cylindrical and is provided with a hollow blind hole; the hollow hole is a probe core cavity; the upper part of the probe core is provided with an electrode threaded hole which passes through the cylindrical wall of the probe core and is communicated with the probe core cavity; the probe core cavity is provided with a reference electrode; and a fixing layer is arranged between the reference electrode and the cylindrical wall of the probe core so as to fix the reference electrode in the probe core. The cathodic protection monitoring probe has the advantages of scientific design, reasonable structure, reliable performance, wide application range, high stability, strong polarization resistance, and stable quality, and is used for pipeline transportation of various fluid materials such as crude oil, natural gas, running water, urban liquefied gas and the like in the fields such as highways, railways, water transportation, aviation,agriculture and industry and the like.

Description

technical field [0001] The invention relates to an electrochemical corrosion detection technology, in particular to a cathodic protection monitoring probe, a cathodic protection monitoring probe monitoring system, a manufacturing method and a monitoring method. Background technique [0002] Fluid pipelines are one of the five major modes of transportation alongside roads, railways, waterways and aviation. Especially buried pipelines go deep into energy supply, urban development and people's lives, and are widely used in crude oil, natural gas, tap water, urban liquefied petroleum gas and The transportation of various fluid materials in the field of process industry plays a pivotal role in the national economy, but while buried pipelines provide people with convenient transportation, the failure of buried pipelines has brought great harm to pipeline transportation. Security risks. The failure forms of buried pipelines are diverse and the mechanism is complex, such as materia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F13/06C23F13/22
Inventor 罗莎刘学功程庆臣李广智杜铁锁赵考生张卫华许光禄曹野明刘国庆焦丽娜吴树香
Owner TIANJIN WATER RESOURCES RES INST
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