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Reference electrode under cathode protection

A reference electrode and cathodic protection technology, which is applied in the direction of material electrochemical variables, connection contact materials, etc., can solve the problems of inability to guarantee the operating rate of the potentiostat, failure of the reference electrode, and inability of the cathodic protection system to work stably for a long time.

Active Publication Date: 2007-11-14
PIPECHINA SOUTH CHINA CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reference electrode technology that is widely used now has been perfected, and it is no problem to apply it under general geographical and climatic conditions, but for some special geographical and climatic conditions, such as arid areas, especially desert areas, due to the abnormally dry climate, the soil The water in the medium is very little or easily evaporates, and the conventional reference electrode will fail quickly, which cannot guarantee the operating rate of the potentiostat, and the cathodic protection system cannot work stably for a long time

Method used

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  • Reference electrode under cathode protection

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Embodiment Construction

[0005] Hereinafter, a specific embodiment is used to further illustrate the reference electrode. Its composition is shown in Figure 1. In order to use 60# steel pipe with Φ529mm pipeline to make reference electrode used in the desert. The outer pot 4 of a clay pot with an upper diameter of 900 mm and a height of 975 mm is buried in the clay 19 so that the clay 19 and the upper mouth of the pot 4 are made flat. In the center of the inner bottom of the outer shell of the earthenware pot 4, the bottom diameter is 255mm, and the top diameter is 180mm. The frustum-shaped earthenware pot liner support 1 has an outer diameter of 150mm and a height of 330mm. The upper opening of the earthenware pot 3, Φ20mm ABS engineering plastic core tube 8 The lower half is 660mm long, 375mm long into the pot liner, and the upper half is 140mm long. The two sections are connected by a connecting piece 7. The core tube 8 is sheathed with a Φ160×1425mm PVC water injection pipe 9 and inserted into the out...

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Abstract

A reference electrode of protection system of negative pole used in dry area particularly in deserts. Core pipe 8 inserts pottery jar exocoel4 and entocoele 3 and its bracket. Periphery of 8 and inter of 3 is hermetical. Coat of 8 and flooding pipe fit by 10 insert into extender in the 4. Top of 9 is dismantling sealing cap 11. Pole conductor 12 connects with pole 2 throughout 9, periphery of 8 and final encapsulation 15 upon the 3. There are 14 and 17 being connected with 16 in 18 beside 14.

Description

Technical field [0001] The invention is a reference electrode for cathodic protection in arid areas. It relates to the technical field of metal corrosion prevention using cathodic protection. Background technique [0002] Buried metal components (pipes, etc.) need to be corrosion controlled. In addition to coating their surface with an anticorrosive layer, they must also be protected by cathodic protection. The use of cathodic protection requires the use of reference electrodes. Nowadays, the widely used reference electrode technology has been perfected, and it is no problem to apply it under general geographic and climatic conditions. However, for some special geographic and climatic conditions, such as arid areas, especially desert areas, due to the abnormally dry climate, the soil The water in the medium is very small or easily evaporates, the conventional reference electrode quickly fails, the operating rate of the potentiostat cannot be guaranteed, and the cathodic protectio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30C23F13/10H01R4/66
Inventor 刘玲莉张立忠杨雪梅刘志刚刘明辉陈洪源
Owner PIPECHINA SOUTH CHINA CO