CN102544779A - Novel anti-corrosion grounding body with cathode protection function and method for manufacturing novel anti-corrosion grounding body - Google Patents
Novel anti-corrosion grounding body with cathode protection function and method for manufacturing novel anti-corrosion grounding body Download PDFInfo
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- CN102544779A CN102544779A CN2011102337711A CN201110233771A CN102544779A CN 102544779 A CN102544779 A CN 102544779A CN 2011102337711 A CN2011102337711 A CN 2011102337711A CN 201110233771 A CN201110233771 A CN 201110233771A CN 102544779 A CN102544779 A CN 102544779A
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Abstract
The invention discloses a novel anti-corrosion grounding body with a cathode protection function and a method for manufacturing the novel anti-corrosion grounding body. The novel anti-corrosion grounding body comprises a steel bar body, wherein one or more anode installation grooves with wide inner parts and narrow outer parts are formed on the steel bar body; an anode material which serves as an anode is arranged in each anode installation groove; and each anode material is zinc or zinc alloy, magnesium or magnesium alloy, or zinc magnesium alloy. The method for manufacturing the novel anti-corrosion grounding body comprises the following steps of: processing one or more inverted-trapezoidal grooves or rectangular grooves with the wide inner parts and the narrow outer parts on a base material such as round steel or flat steel in an extrusion or cold drawing mode; and adding one or more anode materials in an extrusion or rolling mode to prepare the anti-corrosion grounding body with the cathode protection function. The novel anti-corrosion grounding body has a protection current uniformizing function, and can directly replace the conventional grounding body for construction, the construction working quantity of the novel anti-corrosion grounding body cannot be increased, cost is low, and investment cost cannot be greatly improved, so the risk that the anti-corrosion grounding body is stolen is correspondingly reduced, and the service life of a grounding network is prolonged.
Description
Technical field
The present invention relates to novel grounded body of a kind of anticorrosion and preparation method thereof, particularly relate to a kind of novel grounded body of anticorrosion and preparation method thereof with cathodic protection function.
Background technology
Etching problem is to bury ground steel ground network operating one puzzlement greatly; The corrosion of ground network: the most serious corrosion location, usually at subsurface 30～80cm place of down conductor part, its reason is that interior moisture of this position soil and oxygen freedom are unobstructed, adds the influence that downlead receives stronger leakage current.
The physicochemical properties of soil are to burying the influence of ground steel ground net corrosion, the leakage current that induction produced between transmission line and the shaft tower, and through the downlead ground network of flowing through, this is another key factor that causes the earth mat corrosion of metals.Because down conductor closely shows and carry bigger fault current, lightning current or leakage current density than earth mat branch conductors, the corrosion that therefore suffers usually is also more serious.
China's " power equipment ground connection designing technique rules " regulation: be laid in corrosion than high field earthing device, should take anti-corrosion measures such as hot tinning, hot galvanizing according to corrosion property.In the case, because the hot tinning cost is very high, so China adopts hot galvanizing, but to its anti-corrosion effect, following argumentation merits attention: the practical experience of (1), India shows that along with the reduction of coating protection effect, the corrosion of steel is quickened.Therefore, do not recommend zinc-plated basic anti-corrosion measure as the steel earth electrode.(2), zinc coating can protect parent metal in the early stage, but when the integrality of coating was damaged, then parent metal (steel) will corrode with normal even paranormal speed.Though galvanized steel is the most frequently used coating form, coating is not effectively as unique anti-corrosion measure.(3), knownly zinc-platedly limited protective effect can only be provided to steel.The measure commonly used of long-term protective effect can be provided, and is cathodic protection---the protected mode of impressed current, sacrificial anode or the two associating.When selecting the cathodic protection mode, do not consider impressed current method usually, because when earth fault takes place, possibly have high-potential gracient.Therefore, select for use sacrificial anode to be used for the corrosion protection of steel ground network.(4), zinc coat is summed up as two kinds of effects usually to the protective effect of steel, promptly with electrochemistry (negative electrode) protective effect to steel of the insulation blocking effect of corrosive medium and zinc.The former depends on the corrosion resistance of zinc to corrosive medium, and relevant with thickness of coating and quality; The latter depends on that then zinc coat is in a single day impaired, the electrochemical corrosion of the protection range of zinc and zinc self.
The purpose that the ground network in transmission line, transformer station and power plant only adopts galvanized steel can not reach anticorrosion and increase the service life.
Summary of the invention
In order to overcome the defective that above-mentioned prior art exists; The present invention provides a kind of novel grounded body of anticorrosion with cathodic protection function and preparation method thereof, and it is even to possess protective current, and cost is lower; Reduce stolen danger, prolong the useful life of ground network.
For realizing above-mentioned purpose, concrete scheme of the present invention is:
A kind of novel grounded body of anticorrosion with cathodic protection function; It comprises the reinforcing bar body; It is characterized in that: said reinforcing bar body is provided with the anode mounting groove of one or more inner wide and outer narrow; In said anode mounting groove, be provided with the anode material as anode, said anode material is zinc or kirsite, magnesium or magnesium alloy, alloy zinc, zinc magnesium alloy, magnesium, magnesium alloy.Inverted trapezoidal groove or rectangular recess that said anode mounting groove is an inner wide and outer narrow.
A kind of manufacture method with novel grounded body of anticorrosion of cathodic protection function, its manufacture method is: extruding on base material round steel or band steel, cold drawn, the inverted trapezoidal groove or the rectangular recess that process one or more inner wide and outer narrow; Utilize extruding or the mode of rolling to be compounded in inverted trapezoidal groove or compound last one or more anode material of rectangular recess, promptly prepare a kind of anticorrosion earth electrode that possesses cathodic protection.
Among the present invention, said zink rod is straight type.
Among the present invention, said zink rod is a spiral type.
As preferably, said anode material is one or more.
As preferably, said anode material is zinc or kirsite, magnesium or magnesium alloy, alloy zinc, zinc magnesium alloy, magnesium, magnesium alloy or other anode alloy material.
The invention has the beneficial effects as follows: it is even to possess protective current, can directly substitute original earth electrode construction, can not increase workload than the construction of existing ground network; Cost is lower, can too much not increase the investment level, thereby also correspondingly reduces stolen danger; Prolong the useful life of ground network.If match with the ground network design, ground network can prolong 5～10 times useful life; Can not reduce requirement to the electrical characteristic of ground network.
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Description of drawings
Fig. 1 is the bar construction sketch map of the straight type zink rod of the band of present embodiment.
Fig. 2 is the bar construction sketch map of the band spiral zink rod of present embodiment.
Fig. 3 is the bar construction sketch map of the band trapezoidal groove of present embodiment.
Embodiment:
Be easy to understand understanding in order to make technological means of the present invention, creation characteristic and to reach purpose, further set forth the present invention below in conjunction with specific embodiment
Referring to Fig. 1, a kind of novel grounded body of anticorrosion and preparation method thereof with cathodic protection function, this novel grounded body of anticorrosion with cathodic protection function comprises reinforcing bar body 1, and the straight type zink rod 2 of band as anode is arranged on the said reinforcing bar body 1; The reinforcing bar body 1 of present embodiment is base material round steel or band steel, processes anode mounting groove 4 at reinforcing bar body 1, and this anode mounting groove is designed to linear, and employing is inverted trapezoidal groove or rectangular recess.
This manufacture method is: extruding on base material round steel or band steel, cold drawn, the inverted trapezoidal groove or the rectangular recess that process one or more inner wide and outer narrow; What present embodiment adopted is trapezoidal groove (as shown in Figure 3), utilizes extruding or compound last one or more zinc of the mode that rolls or kirsite, magnesium or magnesium alloy or other sacrifical anode alloy material, promptly prepares a kind of anticorrosion earth electrode that possesses cathodic protection.
Embodiment 2
Referring to Fig. 2, a kind of novel grounded body of anticorrosion with cathodic protection function and preparation method thereof comprises reinforcing bar body 1, and band spiral zink rod 3 is arranged on the said reinforcing bar body 1; The reinforcing bar body 1 of present embodiment is base material round steel or band steel, processes anode mounting groove 3 at reinforcing bar body 1, and this anode mounting groove 3 is designed to spirality, and is suitable with band spiral zink rod 3; What this anode mounting groove 3 adopted is inverted trapezoidal groove or rectangular recess.
This manufacture method is: extruding on base material round steel or band steel, cold drawn, the inverted trapezoidal groove or the rectangular recess that process one or more inner wide and outer narrow; Utilize extruding or compound last one or more zinc of the mode that rolls or kirsite, magnesium or magnesium alloy or other sacrifical anode alloy material as anode; Present embodiment is that extruding or the mode of rolling are compounded in trapezoidal groove or rectangular recess; Make its stable installation, promptly prepare a kind of anticorrosion earth electrode that possesses cathodic protection.
The present invention has increased the anode material mounting stability through inverted trapezoidal groove or rectangular recess are set.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection range to be defined by appending claims and equivalent thereof.
Claims (10)
1. novel grounded body of anticorrosion with cathodic protection function, it comprises the reinforcing bar body, it is characterized in that: said reinforcing bar body is provided with the anode mounting groove of one or more inner wide and outer narrow, in said anode mounting groove, is provided with the anode material as anode,
Said anode material is zinc or kirsite, magnesium or magnesium alloy, alloy zinc, zinc magnesium alloy, magnesium, magnesium alloy.
2. according to the said a kind of novel grounded body of anticorrosion of claim 1, it is characterized in that: inverted trapezoidal groove or rectangular recess that said anode mounting groove is an inner wide and outer narrow with cathodic protection function.
3. according to the said a kind of novel grounded body of anticorrosion with cathodic protection function of claim 1, it is characterized in that: said anode material is straight type.
4. according to the said a kind of novel grounded body of anticorrosion with cathodic protection function of claim 1, it is characterized in that: said anode material is a spiral type.
5. according to the said a kind of novel grounded body of anticorrosion with cathodic protection function of claim 1, it is characterized in that: said anode material is one or more.
6. according to the said a kind of novel grounded body of anticorrosion with cathodic protection function of claim 1, it is characterized in that: said reinforcing bar body is base material round steel or band steel.
7. manufacture method with novel grounded body of anticorrosion of cathodic protection function, it is characterized in that: this manufacture method is: extruding on base material round steel or band steel, cold drawn, the inverted trapezoidal groove or the rectangular recess that process one or more inner wide and outer narrow;
Utilize extruding or the mode of rolling to be compounded in inverted trapezoidal groove or compound last one or more anode material of rectangular recess, promptly prepare a kind of anticorrosion earth electrode that possesses cathodic protection.
8. according to the said a kind of manufacture method with novel grounded body of anticorrosion of cathodic protection function of claim 7, it is characterized in that: said anode material is zinc or kirsite, magnesium or magnesium alloy, alloy zinc, zinc magnesium alloy, magnesium, magnesium alloy.
9. according to the said a kind of manufacture method with novel grounded body of anticorrosion of cathodic protection function of claim 7, it is characterized in that: said anode material is straight type.
10. according to the said a kind of manufacture method with novel grounded body of anticorrosion of cathodic protection function of claim 7, it is characterized in that: said anode material is a spiral type.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102337711A CN102544779A (en) | 2011-08-16 | 2011-08-16 | Novel anti-corrosion grounding body with cathode protection function and method for manufacturing novel anti-corrosion grounding body |
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| CN2011102337711A CN102544779A (en) | 2011-08-16 | 2011-08-16 | Novel anti-corrosion grounding body with cathode protection function and method for manufacturing novel anti-corrosion grounding body |
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| CN102544779A true CN102544779A (en) | 2012-07-04 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4544464A (en) * | 1983-12-23 | 1985-10-01 | Oronzio De Nora S.A. | Ground anode prepacked with backfill in a flexible structure for cathode protection with impressed currents |
| CN1189543A (en) * | 1997-10-15 | 1998-08-05 | Nv雷开股份有限公司 | Method for electrical protection of metal object grounding electrode implementing the method |
| CN2732759Y (en) * | 2004-09-15 | 2005-10-12 | 马春兰 | Electrochemical grounding body |
| CN1749433A (en) * | 2004-09-15 | 2006-03-22 | 马春兰 | Electrochemical earthing body |
| CN2850012Y (en) * | 2005-09-28 | 2006-12-20 | 余旭东 | Zinc covered steel grounding pole |
| CN201196976Y (en) * | 2008-05-15 | 2009-02-18 | 武汉爱劳高科技有限责任公司 | Anti-corrosion earth electrode |
| CN201466233U (en) * | 2009-07-09 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Anti-corrosion resistance reducing module for protecting earth screen |
| CN201749958U (en) * | 2010-08-30 | 2011-02-16 | 成都桑莱特科技股份有限公司 | Grounding conductor with material protection performance |
| CN202272956U (en) * | 2011-08-16 | 2012-06-13 | 湖北威达电气有限公司 | Novel anti-corrosive grounding body with cathode protecting function |
-
2011
- 2011-08-16 CN CN2011102337711A patent/CN102544779A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4544464A (en) * | 1983-12-23 | 1985-10-01 | Oronzio De Nora S.A. | Ground anode prepacked with backfill in a flexible structure for cathode protection with impressed currents |
| CN1189543A (en) * | 1997-10-15 | 1998-08-05 | Nv雷开股份有限公司 | Method for electrical protection of metal object grounding electrode implementing the method |
| CN2732759Y (en) * | 2004-09-15 | 2005-10-12 | 马春兰 | Electrochemical grounding body |
| CN1749433A (en) * | 2004-09-15 | 2006-03-22 | 马春兰 | Electrochemical earthing body |
| CN2850012Y (en) * | 2005-09-28 | 2006-12-20 | 余旭东 | Zinc covered steel grounding pole |
| CN201196976Y (en) * | 2008-05-15 | 2009-02-18 | 武汉爱劳高科技有限责任公司 | Anti-corrosion earth electrode |
| CN201466233U (en) * | 2009-07-09 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Anti-corrosion resistance reducing module for protecting earth screen |
| CN201749958U (en) * | 2010-08-30 | 2011-02-16 | 成都桑莱特科技股份有限公司 | Grounding conductor with material protection performance |
| CN202272956U (en) * | 2011-08-16 | 2012-06-13 | 湖北威达电气有限公司 | Novel anti-corrosive grounding body with cathode protecting function |
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Application publication date: 20120704 |