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Oil gas pipeline potential measurement permanent reference electrode

A reference electrode and potential measurement technology, which is used in the field of permanent reference electrodes for potential measurement of oil and gas pipelines, can solve problems such as unsatisfactory soil environment, and achieve the effect of avoiding leakage and leakage and ensuring long-term life.

Active Publication Date: 2012-12-12
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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] 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 prototype, its composition is as follows figure 1 shown.

[0021] This example consists 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 wire 7, and hot melt adhesive 8.

[0022] The insulating screw 6 is installed on the top of the insulating sleeve 3, the copper rod electrode 2 is sealed on the insulating screw 6, and the external thread of the insulating screw 6 matches and seals the internal thread of the insulating sleeve 3; the conductive polymer 1 is fixed on the insulating sleeve The center part of the bottom of the cylinder 3; the insulating sleeve 3 is filled with a saturated copper sulfate solution 4; the reference is saturated through the high molecular conductive...

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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 relates to a permanent reference electrode for oil and gas pipeline potential measurement. General areas of corrosion protection and piping technology involving metallic materials. Background technique [0002] At present, most oil and gas pipeline cathodic protection potential measurement reference electrodes use microporous ceramic semi-permeable membranes for the conduction of the internal and external electrolytes of the reference electrodes. Because the solvent is allowed to pass through after a period of time under the action of osmosis, the solution of the reference electrode will inevitably lead to Leakage and even semi-permeable membrane blockage, pollution and electrode oxidation and eventually failure, although the dual-chamber structure and packing can alleviate this problem and prolong the service life of the reference electrode, but it cannot fundamentally solve this problem. [0003] CN101915794A discloses an all-solid-sta...

Claims

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Application Information

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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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