CN202030826U - Flexible auxiliary anode - Google Patents
Flexible auxiliary anode Download PDFInfo
- Publication number
- CN202030826U CN202030826U CN2011200443209U CN201120044320U CN202030826U CN 202030826 U CN202030826 U CN 202030826U CN 2011200443209 U CN2011200443209 U CN 2011200443209U CN 201120044320 U CN201120044320 U CN 201120044320U CN 202030826 U CN202030826 U CN 202030826U
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- Prior art keywords
- anode
- wire
- auxiliary anode
- flexible
- flexible auxiliary
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- Expired - Lifetime
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- 239000002184 metal Substances 0.000 claims abstract description 17
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- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 14
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
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- 229910052719 titanium Inorganic materials 0.000 claims description 4
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- 239000006229 carbon black Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 6
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- 239000005997 Calcium carbide Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
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- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
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- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model relates to a flexible auxiliary anode, which is formed by weaving carbon fibers or graphite fibers and a corrosion-resisting metal wire or a metal oxide coated metal wire, wherein the conductivity of the flexible auxiliary anode after being woven can be adjusted and strengthened by adopting different strengthened resin with different conductivities according to different application environments of the flexible auxiliary anode. The flexible auxiliary anode has the advantages of long service life, high electrode efficiency and simple production process; and moreover, since the carbon fiber or the graphite fiber is adopted as a main production material, the produced auxiliary anode has excellent properties such as small density, light weight, high tensile strength, corrosion resistance and the like.
Description
Technical field
The utility model relates to the metal anti-corrosion protection technical field, is a kind of supplementary anode that is used for impressed current cathodic protection specifically.
Background technology
1998, China Chinese Academy of Engineering lasts 3 years to be investigated the corrosion in the whole nation, the corrosion of the survey showed that China cause with a toll of more than 5,000 hundred million yuan.Cathode protection technology is a kind of effectively preventing corrosive electro-chemical protection technology; usually be divided into galvanic anode protection and impressed current cathodic protection; its principle is to apply an impressed current to the metallic structures surface that is corroded; protected works becomes negative electrode; thereby make the electronic migration that metallic corrosion takes place be inhibited, avoid or weaken corrosive taking place.The impressed current negative electrode is protected to be called again and is protected impressed current negative electrode guarantor; be in the same electrolyte environment of protected structure periphery, to bury supplementary anode underground; by a direct current power supply is anode with the supplementary anode; with protected structure is negative electrode; constitute current supply circuit; direct current is led to protected metal, make protected metal force to become negative electrode to implement galvanic protection.
Supplementary anode is in the impressed current cathodic protection system, with the electrode materials in protected metal formation loop.Generally corrode down in working order and seldom or basically do not corrode.Divide according to medium, steel scrap, ferrosilicon, graphite, mixing oxide anode, flexible anode are arranged in the soil.Mixing oxide anode, ferrosilicon anode, lead anode etc. are arranged in the water medium.
Polymeric anode is a coated with conductive polymkeric substance and the continuity anode that constitutes also claims flexible anode or cable shape anode on the copper core.The copper core plays conduction, and conductive polymers participates in electrochemical reaction.Because the copper core has good electric conductivity, therefore can on the long anode of thousands of rice, establish a confluence.When polymeric anode is used in soil; need to fill the coke powder and constitute anode groundbed on every side at it; its maximum permission working current in groundbed is 82mA/m; although to compare its working current density very low with other anode; but, therefore can provide even, effectively protection owing to can lay continuous groundbed near protected works.Different with other conventional remote anode groundbed, because polymeric anode and protected metal structures distance are very near, do not disturb so can not produce usually to other outside structures.The polymeric anode simple installation can adopt the construction of ditch dug with a plow plant machinery, and have lower stake resistance, is particularly suitable in the soil of the protection in the pipeline of naked pipe or coating havoc, the complex grid district that shielded and high resistivity.In the total life cycle of anode groundbed, successive polymeric anode groundbed has lower installation and working cost than traditional distributing anode groundbed.Except underground pipeline, polymeric anode also once was used for protecting the jar end of reinforced concrete constructional work, petroleum storage tank, the piling bar harbour of seawater and the inner wall protection of water pipe.The conducting polymer materials that is adopted directly influences the chemical property of flexible anode.Conductive polymers mainly is made of polymeric matrix and conductive filler material.Usually, these polymkeric substance are answered the effect of anti-acid environment, water-fast and chlorine.Have multiple polymers to can be used as the polymer flexibility anode, mainly comprise three classes: (1) polyethylene one comprises crosslinked polyethylene, polyvinyl chloride, chlorosulfonated polyethylene etc.; (2) rubber one chloroprene rubber, Viton, chlorination modified rubber etc.; (3) Ethylene propylene copolymer.Wherein, Ethylene propylene copolymer (EPDM) is although price is higher, owing to have best chemical resistance, [64] therefore are widely used in polymeric anode.The filler that adds is mainly used in the conductivity that guarantees polymeric anode, and the normal conductive filler material that adopts comprises active carbon black or graphite.Carbon black with good electric conductivity belongs to the carbon black of high dispersion, and its advantage is to improve the electroconductibility and the chemical property of polymeric anode, but this carbon black filler can increase the hardness and the fragility of polymkeric substance, the mechanical property of infringement polymeric anode.Have the carbon black material of greater particle size and little specific surface area such as the snappiness that the calcium carbide carbon black can increase polymer materials, but electric conductivity is relatively poor.Except also comprising subsidiary material such as vulcanizing agent, softening agent, antiaging agent in the carbonaceous material polymeric anode that adds conduction.The manufacturing of polymer flexibility anodic is usually similar to other the production technique of rubber type of material, in mixing roll various components is mixed, and carries out sulfidizing at last.
The research of at present relevant flexible assistant anode is less, and patent retrieval only has 5, and division is as follows:
The patent No. belongs to the cable technology field for 200720045493.6 patent of invention provides a kind of conduction EVA elastic body insulated flexible anode cable.This cable comprises the insulation layer and the outer jacket of conductor and conductor outside surface, it is characterized in that being provided with conductive carbon black high-performance carbon dust and belting layer, described conductor is the copper single line intertwist body that meets the GB/T3953 regulation, insulation layer is conduction EVA elastomeric insulating material, outer jacket is wear-resisting, acidproof, alkaline-resisting, the synthon braid integument of microbial corrosion resistance, conduction EVA elastomeric insulating material is wrapped on the copper single line intertwist body, set gradually conductive carbon black high-performance carbon dust at the insulation layer outside surface, belting layer and outer jacket, conductive carbon black high-performance carbon dust is filled between insulation layer and the belting layer.This cable has product structure softness, easy to use, easy construction; Outward current is even, the magnitude of current is big; Less investment, long service life.Be applicable to the steel storage tank of crude oil accumulating and the anti-corrosion protection of steel pipe.
The patent No. relates to a kind of distribution type metal oxide flexible anode for 200610043720.1 patent provides a kind of distribution type metal oxide flexible anode, is made of main anode cable, sheath body and carbonaceous filler bag.Be connected in series a tubulose anode bodies at a certain distance along the main anode cable, spacing between the sheath body can be regulated according to actual needs, the material of sheath body is a titanium base mixed metal oxide, adopts the carbonaceous filler bag to reduce the stake resistance of anode groundbed around anode bodies.This distribution type metal oxide flexible anode has bigger discharge capacity and working current density, good electrochemical and long work-ing life, be easy to install, and can work stably in a long term, be applicable to prevent underground pipeline, especially the galvanic corrosion of metallic structures such as the old pipeline of coating damage and storage tank bottom.
The patent No. provides a kind of flexible anode that adds the electric current galvanic protection for 200820066976.9 utility model.Relate to a kind of flexible anode that adds the electric current galvanic protection; constitute by copper stranded conductor and the conductive rubber protective layer that is wrapped on the copper stranded conductor; be characterized in: outside the conductive rubber protective layer, also be provided with a coke sheath, between coke sheath and conductive rubber protective layer, be filled with coke.Because the utility model has adopted the coke sheath to make and the utlity model has following beneficial effect: owing to adopt the protective layer of conductive silicon rubber as the copper stranded conductor heart yearn, resistance to low temperature is better than conductive plastics, can use at extremely frigid zones; Owing to adopt the coke sheath to fix coke,, can save the consumption of coke greatly, and the thickness of coke be even than mode with groundbed backfill coke; Than the product with fixed thickness coke coating, the utility model can be applicable to different geologic conditions and the requirement of different working lives easily by selecting the coke sheath of different size for use.
The patent No. is that 200820045680.9 utility model discloses durable type flexible polymer anode, it includes fexible conductor, be covered with the compliant conductive polymer layer in the fexible conductor external packets, be covered with coke layer in compliant conductive polymer layer external packets, be covered with the fixedly flexible tight bundle layer of coke layer in the coke layer external packets.The outside of tightly restrainting layer in described flexibility also is coated with one deck to the wear-resisting tight bundle layer of the further fixed of coke layer.The purpose of this utility model is to overcome the deficiencies in the prior art, provides and can guarantee electric current uniform distribution, polymeric anode that self can mass consumption on a kind of simple in structure, life-span length, easy construction, the long distance.
The patent No. is that 200820067194.7 utility model is a kind of flexible anode cable, is made up of metallic conductor and the conducting polymer composite preservative coat that is coated on this metallic conductor outside, and wherein: the shape of cross section of conducting polymer composite preservative coat is rounded; Perhaps the conducting polymer composite preservative coat has 3～36 slick, circular-arc ribs, and its shape of cross section is " quincunx ".The utility model is because the conducting polymer composite preservative coat has good acid-proof alkaline, not perishable, therefore utilize this conducting polymer composite preservative coat that metallic conductor is coated, can metallic conductor is isolated with environment on every side, metallic conductor is not corroded substantially, thereby prolong anodic work-ing life; Has good flexible energy and work-ing life
Above-mentioned patent provides useful thinking for the flexible assistant anode technical development, but comes with some shortcomings: the one, and all adopt conducting polymer composite as its chief component, when the medium-term and long-term application of corrosive medium, may there be degraded destructive possibility; The 2nd, because the electroconductibility of polymkeric substance is far below the metal supplementary anode, therefore maximumly allow working current lower, electrode efficiency is low; The 3rd, in order to reach requirement of strength, must adopt relatively large copper or other metals.Therefore intensity is lower comparatively speaking.
Summary of the invention
The purpose of this utility model is the problem that prior art exists is solved, and a kind of flexible assistant anode that is used for impressed current cathodic protection is provided, and by adopting carbon fiber and metallic substance is compound makes, reaches long service life, the purpose that current efficiency is high.
The technical solution of the utility model is achieved in that
Adopt wire, carbon fiber or graphite fibre, and strengthen resin and constitute, periphery wiry is twisted into thigh by many carbon fibers or graphite fibre, and wire that is twisted into strand and carbon fiber or graphite fibre are impregnated with the enhancing resin.
The wire that is adopted is the resistant metal silk, adopts copper wire, nickel wire, Stainless Steel Wire or titanium silk, and wire is single or many.
Strengthen resin and adopt thermoplastic resin.
Described flexible assistant anode is to adopt carbon fiber or graphite fibre and resistant metal silk or coating of metal oxides wire to twine braiding to form, and the flexible assistant anode that weaves is adjusted its electroconductibility with the enhancing resin of different conductivities according to the different mining of its applied environment and strengthened.
The resistant metal silk can adopt copper wire, nickel wire, Stainless Steel Wire or titanium silk, and the coating of metal oxides wire can be carried on a shoulder pole metal oxide containing precious metals such as oxide compound for iridium.Wire can be for single or many.
Strengthening resin is that the employing thermoplastic resin is main, and antioxidant, tensio-active agent, lubricant, carbon dust are the organism of auxiliary agent.Thermoplastic resin mainly contains polyethylene, polypropylene, nylon, ABS, polycarbonate, polyetherimide, polysulfones, polyetherketone and thermoplastics type's polyimide etc.
Compared with the prior art, the utility model has the advantages that: 1. the life-span is long; 2. electrode efficiency height; 3. preparation technology is simple.4. owing to adopt carbon fiber or graphite fibre as its main preparation material, therefore made supplementary anode have that density is little, light weight, tensile strength height, excellent specific property such as corrosion-resistant.
Description of drawings
Fig. 1 is a single metal wire flexible assistant anode structural representation of the present utility model.
Fig. 2 is many one metal wires flexible assistant anode structural representation of the present utility model.
Number in the figure 1 wire, 2 carbon fibers or graphite fibre, 3 strengthen resin.
Embodiment
Below with reference to drawings and Examples content of the present utility model is described further.
Shown in Figure 1, the single resistant metal of employing of the present utility model is as the metallic conduction material, and many carbon fibers or graphite fibre are twisted into thigh with it as requested as non-metallic conducting material, and dipping strengthens the resin manufacture moulding then.
Shown in Figure 2, shown in the utility model, at first filament and Duo Gen carbon fiber or graphite fibre are twisted into thigh, the resin of dipping enhancing is then made the preimpregnation rope, according to different service requirementss, many preimpregnation ropes are twisted into thigh once more, and then dipping strengthens the resin manufacture moulding.During use many one metal wires are separated and twist into one and link to each other with positive source.
With transformer substation grounding network anti-corrosion galvanic protection in the soil is example; during use; flexible assistant anode is laid along ground net; and be connected with the positive pole of impressed current catholic protection device; ground net is connected with the negative pole of impressed current catholic protection device; impressed current forms the loop by soil media, plays the grounding net of transformer substation corrosive effect that prevents.
Claims (3)
1. flexible assistant anode, adopt wire (1), carbon fiber or graphite fibre (2), and enhancing resin (3) constitutes, it is characterized in that, the periphery of wire (1) is twisted into thigh by many carbon fibers or graphite fibre (2), and wire (1) that is twisted into strand and carbon fiber or graphite fibre (2) are impregnated with enhancing resin (3).
2. flexible assistant anode according to claim 1 is characterized in that, the wire that is adopted (1) is the resistant metal silk, adopts copper wire, nickel wire, Stainless Steel Wire or titanium silk, and wire (1) is single or many.
3. flexible assistant anode according to claim 1 is characterized in that, strengthens resin (3) and adopts thermoplastic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200443209U CN202030826U (en) | 2011-02-23 | 2011-02-23 | Flexible auxiliary anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200443209U CN202030826U (en) | 2011-02-23 | 2011-02-23 | Flexible auxiliary anode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202030826U true CN202030826U (en) | 2011-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200443209U Expired - Lifetime CN202030826U (en) | 2011-02-23 | 2011-02-23 | Flexible auxiliary anode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202030826U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464874A (en) * | 2014-12-25 | 2015-03-25 | 武汉大学 | Graphite composite grounding material for cathode protection and manufacturing method thereof |
| CN104502981A (en) * | 2014-12-30 | 2015-04-08 | 中国科学院电子学研究所 | Oceanic capacitive electrode |
| RU176814U1 (en) * | 2017-04-27 | 2018-01-29 | Общество с ограниченной ответственностью "Завод нефтегазовой аппаратуры "Анодъ" | LONG ANODE FOR ELECTROCHEMICAL CORROSION PROTECTION |
| CN109208007A (en) * | 2017-06-30 | 2019-01-15 | 四川启昌管道工程有限责任公司 | A kind of novel linear anode bodies |
| CN112656144A (en) * | 2020-12-23 | 2021-04-16 | 沈阳理工大学 | Demonstration model storage device with rust-proof structure for mechanical design |
-
2011
- 2011-02-23 CN CN2011200443209U patent/CN202030826U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464874A (en) * | 2014-12-25 | 2015-03-25 | 武汉大学 | Graphite composite grounding material for cathode protection and manufacturing method thereof |
| CN104502981A (en) * | 2014-12-30 | 2015-04-08 | 中国科学院电子学研究所 | Oceanic capacitive electrode |
| RU176814U1 (en) * | 2017-04-27 | 2018-01-29 | Общество с ограниченной ответственностью "Завод нефтегазовой аппаратуры "Анодъ" | LONG ANODE FOR ELECTROCHEMICAL CORROSION PROTECTION |
| CN109208007A (en) * | 2017-06-30 | 2019-01-15 | 四川启昌管道工程有限责任公司 | A kind of novel linear anode bodies |
| CN112656144A (en) * | 2020-12-23 | 2021-04-16 | 沈阳理工大学 | Demonstration model storage device with rust-proof structure for mechanical design |
| CN112656144B (en) * | 2020-12-23 | 2022-08-05 | 沈阳理工大学 | Demonstration model storage device with rust-proof structure for mechanical design |
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