CN101245463A - Flexible corrosion protection anode - Google Patents
Flexible corrosion protection anode Download PDFInfo
- Publication number
- CN101245463A CN101245463A CNA2008100471095A CN200810047109A CN101245463A CN 101245463 A CN101245463 A CN 101245463A CN A2008100471095 A CNA2008100471095 A CN A2008100471095A CN 200810047109 A CN200810047109 A CN 200810047109A CN 101245463 A CN101245463 A CN 101245463A
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- corrosion protection
- anode
- conductive rubber
- coated
- corrosion
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- Prevention Of Electric Corrosion (AREA)
Abstract
The invention relates to a flexible anti-corrosion anode the structure of which comprises a copper conductor (1), a layer of conductive rubber (2) coated on the outer layer of the copper conductor (1), an anti-corrosion textile protection layer (4) coated on the outside of the conductive rubber (2), coke (3) filled between the conductive rubber (2) and the protection layer (4) and a layer of fiber fabrics (5) coated outside the textile protection layer (4). The flexible anti-corrosion anode of the invention is easy to be installed and difficult to be damaged, has the properties of good flexibility, high temperature and ultraviolet radiation resistance, can not cause heavy metal pollution to water and earth even being buried underground, also has the functions of decreasing grounding resistance and prolonging service life, as well as good electrochemical properties and is capable of working reliably for a long time, and can realize uniform distribution of cathodic protection current as well as can fully play the role of forced current cathodic protection; meanwhile, the problems of hydrogen evolution and coating peeling caused by partial overprotection can be avoided. By adopting the flexible anti-corrosion anode of the invention, the electrochemical corrosion of metal structures such as underground steel pipelines, oil tanks, etc. can be controlled.
Description
Technical field
The present invention is a kind of grounding device, particularly is applied to the novel flexible corrosion protection anode of protection of the distributed cathodic protection of impressed current of steel pipe and petroleum storage tank etc.
Background technology
The impressed current cathode protection measure is often adopted in the corrosion control of steel pipe and petroleum storage tank etc.The supplementary anode of the existing impressed current galvanic protection of generally using has high silicon cast-iron anode, graphite anode, iron and steel anode and common flexible anode etc.High silicon cast-iron anode, graphite anode, when the iron and steel anode is used for supplementary anode, construction is difficulty and the cloudy problem of protecting the distribution of current inequality of easy generation, these supplementary anodes easily produce interference problem simultaneously, are difficult to reach requirement in high resistivity area and the old pipeline of coating damage.Common flexible anode exists snappiness difference and the relatively poor defective of resistant of high or low temperature; When adopting stopping composition, this anode construction is than difficulty and easily produce the loose problem of stopping composition in addition.
Summary of the invention
Technical problem to be solved by this invention is: at the deficiency of existing supplementary anode technology, a kind of novel flexible corrosion protection anode is provided, galvanic corrosion control with metallic structures such as the old pipeline that is applicable to underground steel pipeline, especially coating damage and petroleum storage tanks.
The technical solution adopted for the present invention to solve the technical problems is:
Flexible corrosion protection anode provided by the invention, its structure is: comprise copper conductor, be coated with one deck conductive rubber at the skin of copper conductor; Coated outside at conductive rubber has erosion-resisting fabric protective layer, is filled with coke between them; Coated outside at the fabric protective layer has one deck fibrous braid.
Above-mentioned flexible corrosion protection anode provided by the invention, it is used to prevent the galvanic corrosion of underground steel pipeline and petroleum storage tank.
The present invention compares with existing supplementary anode, and its major advantage is:
The one, radius-of-curvature is less, is easy to install, not easy damaged; The 2nd, adopt the anticorrosion conductive rubber material that does not contain heavy metal, have good flexibility, resistant of high or low temperature and ultraviolet-resistant capacity, imbed for a long time and undergroundly can not cause heavy metal contamination water, soil, meet the environmental requirement of country, can protect the internal layer copper conductor and can prevent that flexible corrosion protection anode loop starting point from excessive electric current output taking place; The 3rd, the coke layer that adopts has the function that reduces stake resistance, and can prolong the work-ing life of this flexible corrosion protection anode; The 4th, adopted fabric and fibrous braid, but the STRENGTH ON COKE layer shield, can prevent that flexible corrosion protection anode is damaged in the process of installing.In addition, also have good electrochemical, can work stably in a long term; Can make the cathodic protection current uniform distribution, can give full play to the effect of impressed current cathode protection measure, avoid simultaneously producing liberation of hydrogen and coating stripping problem because of local overprotection.
The present invention is owing to have an above-mentioned advantage, therefore is applicable to the galvanic corrosion control of metallic structures such as the old pipeline of underground steel pipeline, especially coating damage and petroleum storage tank.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Flexible corrosion protection anode provided by the invention, its structure be as shown in Figure 1: comprise copper conductor 1, its skin is coated with the polymer rot-resistant conductive rubber 2 that one deck does not contain heavy metal; Coated outside at conductive rubber 2 has erosion-resisting fabric protective layer 4, is filled with coke 3 between them; Coated outside at fabric protective layer 4 has one deck fibrous braid 5, is damaged in installation process to prevent this flexible corrosion protection anode.
Described conductive rubber 2, it has the output that good electrical conductivity is beneficial to cathodic protection current, has good flexibility and is beneficial to reduce contact resistance and convenient construction, also has splendid resistant of high or low temperature and UV resistant, ozone ability.
Described coke 3, its purity should be selected for use up to more than 98.5%, and this high grade coke has good electrical conductivity, can reduce the stake resistance of flexible corrosion protection anode, and copper conductor 1 and conductive rubber 2 are shielded.
Described fabric protective layer 4, the woven that can make by materials such as Vinyon N or acrylic fibers, the perhaps woven of making by Vinyon N and cotton blended material.Fabric protective layer 4 energy stationary coke also have the osmosis characteristic.
Described fibrous braid 5 can be formed by the braiding of materials such as nylon, polyamide fibre, terylene, is netted, is wrapped in the outside of fabric protective layer 4.The effect of fibrous braid 5 is to protect flexible corrosion protection anode in construction.
Above-mentioned flexible corrosion protection anode provided by the invention can be used for preventing the galvanic corrosion of underground steel pipeline and petroleum storage tank.
Flexible corrosion protection anode provided by the invention is when reality is used, and near the protected object that can be laid in (for example steel pipe or petroleum storage tank), but steel pipe laying in one ditch, petroleum storage tank are adopted the construction technology of similar buried cable at the bottom of jar, and be comparatively simple and easy.Flexible corrosion protection anode is as supplementary anode, can link to each other with the positive pole of the power unit of impressed current cathodic protection system, and protected object links to each other with the negative pole of power unit.The anodal effusive protective current of power unit flows to protected object by flexible corrosion protection anode equably via soil, thereby the control protected object suffers galvanic corrosion.
Claims (5)
1. flexible corrosion protection anode comprises copper conductor (1), it is characterized in that: copper conductor (1) skin is coated with one deck conductive rubber (2); Coated outside at conductive rubber (2) has erosion-resisting fabric protective layer (4), is filled with coke (3) between them; Coated outside at fabric protective layer (4) has one deck fibrous braid (5).
2. flexible corrosion protection anode according to claim 1 is characterized in that: fibrous braid (5) is netted, and it is wrapped in the outside of fabric protective layer (4).
3. flexible corrosion protection anode according to claim 2 is characterized in that: fibrous braid (5) is formed by nylon, polyamide fibre or polyester material braiding.
4. flexible corrosion protection anode according to claim 1 is characterized in that: the woven that fabric protective layer (4) is made by Vinyon N or acrylic fibers material, the perhaps woven of being made by Vinyon N and cotton blended material.
5. according to the described flexible corrosion protection anode of arbitrary claim in the claim 1 to 4, it is characterized in that the purposes in preventing underground steel pipeline or petroleum storage tank galvanic corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100471095A CN101245463A (en) | 2008-03-20 | 2008-03-20 | Flexible corrosion protection anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100471095A CN101245463A (en) | 2008-03-20 | 2008-03-20 | Flexible corrosion protection anode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101245463A true CN101245463A (en) | 2008-08-20 |
Family
ID=39946138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100471095A Pending CN101245463A (en) | 2008-03-20 | 2008-03-20 | Flexible corrosion protection anode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101245463A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360597A (en) * | 2011-09-14 | 2012-02-22 | 湖南金杯电缆有限公司 | Long flexible anode cable |
| CN105598150A (en) * | 2016-03-16 | 2016-05-25 | 江西省环境保护科学研究院 | Electrode system and electric soil remediation method |
-
2008
- 2008-03-20 CN CNA2008100471095A patent/CN101245463A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360597A (en) * | 2011-09-14 | 2012-02-22 | 湖南金杯电缆有限公司 | Long flexible anode cable |
| CN105598150A (en) * | 2016-03-16 | 2016-05-25 | 江西省环境保护科学研究院 | Electrode system and electric soil remediation method |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080820 |