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Oil gas pipeline potential measurement permanent reference electrode

A technology of potential measurement and reference electrode, which is applied in the field of permanent reference electrode for potential measurement of oil and gas pipelines. It can solve the problems of unsatisfactory soil environment and achieve the effect of avoiding seepage loss and ensuring long-term life.

Active Publication Date: 2014-11-26
PIPECHINA SOUTH CHINA CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The two reference electrodes solve this problem in aqueous environments, but are not ideal in soil environments either

Method used

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  • Oil gas pipeline potential measurement permanent reference electrode

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Embodiment Construction

[0020] Example. This example is used to illustrate the specific implementation of the present invention and further illustrate the present invention. This example is an experimental prototype whose composition is as follows figure 1 shown.

[0021] This example is composed of polymer conductive polymer 1, copper rod electrode 2, insulating sleeve 3, saturated copper sulfate solution 4, heat shrinkable sleeve 5, insulating screw 6, electrode lead 7, and hot melt adhesive 8.

[0022] The insulating screw 6 is installed on the top of the insulating sleeve 3, the red copper rod electrode 2 is sealed on the insulating screw 6, the outer thread of the insulating screw 6 is matched and sealed with the inner thread of the insulating sleeve 3; the polymer conductive polymer 1 is fixed on the insulating sleeve. The bottom center of the cylinder 3; the insulating sleeve 3 is filled with saturated copper sulfate solution 4; The copper sulfate solution 4 and the red copper rod electrode ...

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Abstract

The invention provides an oil gas pipeline potential measurement permanent reference electrode. An insulation screw (6) is installed at the top of an insulation sleeve (3), a red copper bar electrode (2) is sealed on the insulation screw (6), and outer threads of the insulation screw (6) is in fit sealing with inner threads of the insulation sleeve (3). A macromolecule conducting polymer (1) is fixed at the central position of the bottom of the insulation sleeve (3). A saturated copper sulfate solution (4) is contained in the insulation sleeve (3). The saturated copper sulfate solution (4), the red copper bar electrode (2) and an electrode lead (7) are sealed completely through the macromolecule conducting polymer (1), the insulation sleeve (3), the insulation screw (6), a thermal contraction sleeve (5) and hot melt adhesive (8). The macromolecule conducting polymer (1) ensures connection between the saturated copper sulfate solution (4) and outside media and can measure electric potential. The problems including solution leakage, semi-permeable membrane blockage and copper bar corrosion do not exist, and the long service life of the reference electrode is guaranteed.

Description

technical field [0001] The invention is a permanent reference electrode for potential measurement of oil and gas pipelines. The technical field of general corrosion protection and piping systems involving metallic materials. Background technique [0002] At present, most of the reference electrodes for cathodic protection potential measurement of oil and gas pipelines use microporous ceramic semi-permeable membranes for the conduction of electrolytes inside and outside the reference electrodes. Since the solvent is allowed to pass through under the action of osmosis for a period of time, it will inevitably lead to the leakage of the reference electrode solution. Leakage and even semipermeable membrane blockage, fouling, and electrode oxidation and eventual failure, although the use of dual-chamber structures and fillers can alleviate this problem and prolong the service life of the reference electrode, it cannot fundamentally solve this problem. [0003] CN101915794A disclo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F13/08
Inventor 张丰刘玲莉陈洪源王维斌张永胜陈新华薛致远郝建斌高强王禹钦赵晋云吴长访赵君张玉志
Owner PIPECHINA SOUTH CHINA CO
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