CN101030458B - Non-corrosive assembled grounding electrode - Google Patents
Non-corrosive assembled grounding electrode Download PDFInfo
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- CN101030458B CN101030458B CN2006101283450A CN200610128345A CN101030458B CN 101030458 B CN101030458 B CN 101030458B CN 2006101283450 A CN2006101283450 A CN 2006101283450A CN 200610128345 A CN200610128345 A CN 200610128345A CN 101030458 B CN101030458 B CN 101030458B
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- butt joint
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- earth electrode
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Abstract
The invention is concerned with a kind of grounding pole-a kind of corrosion-free combined grounding pole, resistance reducing material and its production. The corrosion-free combined grounding pole has metal conductor pole core whose two ends have contact metal conductor. The pole core is wrapped with resistance reducing material layer made of by lead or/ and calcined coke and asphaltum multiplex material. At first, cut the grounding pole of metal conductor into segments in certain length to form pole core of grounding pole and melt metal conductor contact connections on both ends. The resistance reducing multiplex material is made by adding lead or/ and calcined coke of the resistance reducing material into heating equipment, stirring, heating and adding asphaltum with stirring. Set the pole core and contact connections into molding mould, and inject resistance reducing material, and cool in shape. This production of grounding pole is easy, low cost and good long-time activity, while its resistivity is 0.38omega.m and it is harmless to circumstance with better economic benefit.
Description
One, technical field: the present invention relates to a kind of earth electrode and manufacture method thereof, particularly relate to a kind of non-corrosive assembled grounding electrode.
Two, background technology: the facility of systems such as electric power, television network broadcast, post and telecommunications, railway communication signal and electrification, to the resistance value of earthing device certain technical requirements must be arranged, just can make device security stable operation.Present in order to satisfy the designing requirement of earth resistance, as to have adopted resistance reducing agent, resistance reducing agent to make earthing module.Resistance reducing agent, earthing module have played important function in solving the low earth resistance engineering of high soil resistivity.But the earthing module that resistance reducing agent and resistance reducing agent are made does not fundamentally solve the etching problem of earth electrode, is perplexing owner and engineers and technicians always.The etching problem of steel is global difficult problems, is the objective phenomenon that nature extensively exists.Through discovering, it mainly is that seal is poor that present common earthing module causes reason for corrosion easily, not antiseepage, and natural moisture, oxygen and corrosive medium corrode earth electrode easily, cause Corrosion of Grounding Device to avoid.Can produce and to reduce earth resistance again to the free from corrosion earth electrode product of steel?
China utility model patent ZL 03232747.1 (notification number CN2598167Y) proposed a kind of interior anticorrosion outer compound earthing module that falls resistance, module central authorities are the support pole piece of metal material, the isolation anticorrosive coat that the high aluminosilicate of serving as reasons outside it is frozen into, anticorrosive coat is the resistance layer of falling of electric conducting material coagulation one-tenth outward, and the two ends of pole piece main shaft are stretched out outside the die body and linked to each other with other ground connection facility.Resistance to corrosion is strong, and earial drainage is not subjected to that soil is done, humidity effect, and electric conductivity is stable, and the life-span is long, and is easy to use.Shortcoming is that branch and hierarchical structure increase production technology, will increase the metal material consumption when especially multi-stage cascade uses.
Three, summary of the invention:
The objective of the invention is: at the prior art deficiency, it is low to propose a kind of resistivity, and no burn into is long-lasting good, easy construction, the non-corrosive assembled grounding electrode that production technology is simple, cost is low.
The technical solution adopted in the present invention:
A kind of non-corrosive assembled grounding electrode, contain metallic conductor earth electrode pole piece, be connected with metallic conductor butt joint connector at the two ends of described metallic conductor earth electrode pole piece, be enclosed with the resistance-lowering material layer around the metallic conductor earth electrode pole piece between described butt joint connector, described resistance-lowering material layer is made up of 10～25% pitch and 75～90% micro crystal graphites.
A kind of non-corrosive assembled grounding electrode, contain metallic conductor earth electrode pole piece, be connected with metallic conductor butt joint connector at the two ends of described metallic conductor earth electrode pole piece, be enclosed with the resistance-lowering material layer around the metallic conductor earth electrode pole piece between described butt joint connector, described resistance-lowering material layer forges by 10～25% pitch and 75～90% that the back is burnt to be formed.
A kind of non-corrosive assembled grounding electrode, contain metallic conductor earth electrode pole piece, be connected with metallic conductor butt joint connector at the two ends of described metallic conductor earth electrode pole piece, be enclosed with the resistance-lowering material layer around the metallic conductor earth electrode pole piece between described butt joint connector, described resistance-lowering material layer is made up of 10～25% pitch and 75～90% the micro crystal graphite mixture burnt with forging the back.
Described non-corrosive assembled grounding electrode, it is shaped as cylinder, and its two ends butt joint connector is a rosette, and resistance-lowering material layer external diameter is identical with the rosette external diameter; Butt joint connector or be flange.
Described non-corrosive assembled grounding electrode, perhaps it is shaped as oval cylinder, or is multiedge cylinder, and the butt joint connector shape at its two ends is identical with resistance-lowering material layer cross section shape.
Described non-corrosive assembled grounding electrode, perhaps it is shaped as oval cylinder, or is multiedge cylinder, and the butt joint connector at its two ends is a flange.
Described non-corrosive assembled grounding electrode, two butt joint connector relative inner at metallic conductor earth electrode pole piece two ends respectively are provided with wedge shape or columnar protrusions or reinforcement.
Useful good effect of the present invention:
1, non-corrosive assembled grounding electrode resistance-lowering material of the present invention mainly adopts graphite and micro crystal graphite or forges back Jiao, resistivity is low, can effectively reduce earth resistance, and waterproof, antiseep, compactness are good, the intensity height, natural moisture, acidic materials, corrosive medium, oxygen etc. can't penetrate into the steel earth electrode.The steel earth electrode has not had etching condition, and the earth resistance long-term stability is put things right once and for all.Non-corrosive assembled grounding electrode is at present unique qualified products that detect by State Grid Corporation of China's Wuhan High Voltage Research Institute.Pilot project and result are referring to subordinate list one, subordinate list two, subordinate list three:
Subordinate list one: non-corrosive assembled grounding electrode test report:
Subordinate list two: resistance-lowering material of the present invention is to metal earth electrode rate of corrosion experiment with measuring result and conclusion
Subordinate list three: resistance-lowering material of the present invention is to metal earth electrode corrosion test result and conclusion when burying ground
2, non-corrosive assembled grounding electrode resistance-lowering material of the present invention adopts micro crystal graphite or forges back Jiao and pitch heat is mixed, and is wrapped in after solidifying around the earth electrode pole piece, and is long-lasting good, and do not produce corrosion.Micro crystal graphite or forge the back Jiao belong to the electron conduction material, resistivity is low, 0.38 Ω .m is subjected to the weather factor affecting less.Non-corrosive assembled grounding electrode is pollution-free to surrounding environment, and human body is not had any harm, helps environmental protection.
3, non-corrosive assembled grounding electrode of the present invention; the transportation easy construction; can or be equipped with threeway, four-way member by the connector butt joint; be arbitrarily made with the nothing corrosion earthing device of various forms, all lengths requirement, buried earth electrode construction only needs by the designing requirement punching, and the non-corrosive assembled grounding electrode side weld connects just puts into the hole; closely knit with the mud perfusion then in order to earial drainage; reduce the excavation face, workload is low, helps protecting the massif vegetation.
4, non-corrosive assembled grounding electrode manufacture method of the present invention is simple, raw material sources extensively, easily get, cheap, production technology is simple, production cost is low, has the good social economic benefit.
Four, description of drawings:
Fig. 1: non-corrosive assembled grounding electrode sectional structure schematic diagram
Fig. 2, Fig. 3, Fig. 4: be respectively the variform several cylindrical non-corrosive assembled grounding electrode sectional structure schematic diagrames of pole piece
Fig. 5, Fig. 6, Fig. 7: be respectively several prismatic bodily form non-corrosive assembled grounding electrode sectional structure schematic diagrames
Five, embodiment:
Embodiment one: referring to Fig. 1, Fig. 2, non-corrosive assembled grounding electrode, contain metallic conductor earth electrode pole piece 3, at the two ends of pole piece 3 weld metal conductor butt joint connector 1, be enclosed with resistance-lowering material layer 2 around the pole piece 3 between described butt joint connector 1, described resistance-lowering material layer 2 is graphite, pitch composite layer, or for graphite, forge the back burnt composite layer; Described resistance-lowering material layer 2 or for graphite, pitch, forge the burnt three kinds of material mixing in back and make.The present embodiment assembled grounding electrode is shaped as cylinder, and pole piece 3 is shaped as the bar shaped round steel, and its two ends butt joint connector 1 is a rosette, and resistance-lowering material layer 2 external diameter are identical with the rosette external diameter.For the overall performance and the intensity of the enhanced grounding utmost point, can establish reinforcement or respectively be provided with wedge shape or columnar protrusions 11 in two butt joint connector 1 relative inner at pole piece 3 two ends.
Embodiment two: referring to Fig. 1, Fig. 3, the present embodiment non-corrosive assembled grounding electrode, with embodiment one inequality be that pole piece 3 is the bar shaped band steel.
Embodiment three: referring to Fig. 1, Fig. 4, the present embodiment non-corrosive assembled grounding electrode, with embodiment one inequality be that pole piece 3 is the strip angle steel.Two butt joint connector 1 relative inner at pole piece 3 two ends are not established reinforcement or wedge shape or columnar protrusions.
Embodiment four: referring to Fig. 1, Fig. 5, number in the figure does not repeat with the identical representative same meaning of embodiment one.The present embodiment non-corrosive assembled grounding electrode, with embodiment one inequality be: assembled grounding electrode is shaped as prism, and the butt joint connector 1 at its two ends is a flange, and 10 is the connecting bolt perforation among the figure.
Embodiment five: referring to Fig. 1, Fig. 6, the present embodiment non-corrosive assembled grounding electrode, with embodiment one inequality be: assembled grounding electrode is shaped as prism, and the butt joint connector shape at its two ends is identical with resistance-lowering material layer cross section shape.
No matter the assembled grounding electrode shape is four-prism (as Fig. 7), or be oval cylinder, or be cylinder, the butt joint connector shape at its two ends can be identical with resistance-lowering material layer cross section shape, when the earth electrode of different length is formed in cascade, adopt welding manner to connect in twos; The butt joint connector is a flange, when the earth electrode of different length is formed in cascade, connects by bolt in twos, and carries out preservative treatment on request.According to actual needs and instructions for use, can establish reinforcement or wedge shape or columnar protrusions, perhaps not establish reinforcement or wedge shape or columnar protrusions in two butt joint connector relative inner at the pole piece two ends of earth electrode.
Embodiment six: present embodiment is the resistance-lowering material that is used in non-corrosive assembled grounding electrode, consisting of of resistance-lowering material: bitumen content is 10%, micro crystal graphite (or forging back Jiao) content is 90%, heat blendes together the graininess with certain viscosity, be injected in the non-corrosive assembled grounding electrode mould condensation moulding of repressed back.
Embodiment seven: present embodiment resistance-lowering material, the content of its medium pitch are 25%, and micro crystal graphite (or forging back Jiao) content is 75%.
Embodiment eight: present embodiment resistance-lowering material, the content of its medium pitch are 15%, and micro crystal graphite (or forging back Jiao) content is 85%.
Embodiment nine: present embodiment resistance-lowering material, the content of its medium pitch are 20%, and micro crystal graphite (or forging back Jiao) content is 80%.
Embodiment ten: the resistance-lowering material of present embodiment non-corrosive assembled grounding electrode consists of: bitumen content is 10%, and micro crystal graphite content is 80%, and forging the burnt content in back is 10%.
Embodiment 11: the resistance-lowering material of present embodiment non-corrosive assembled grounding electrode consists of: bitumen content is 20%, and content of graphite is 10%, and forging the burnt content in back is 70%.
Embodiment 12: the resistance-lowering material of present embodiment non-corrosive assembled grounding electrode consists of: bitumen content is 15%, and content of graphite is 25%, and forging the burnt content in back is 60%.
In the resistance-lowering material, the content of graphite is certain in its ratio range, and surplus is a graphite or burnt for forging the back; Perhaps be the graphite mixture burnt with forging the back.Graphite and forging in the burnt mixture in back, graphite and forge back Jiao and can mix with arbitrary proportion.Heat is sneaked out in the journey, can add a spot of rare earth, but the adding of a spot of rare earth composition, and the character and the effect of resistance-lowering material do not had substantial influence.
Embodiment 13: the production method of present embodiment non-corrosive assembled grounding electrode, realize by following step: (1) presses the certain-length cutting section with grounded metal conductor earth electrode in advance, form the pole piece of earth electrode, at its two ends weld metal conductor butt joint connector;
(2) get the raw materials ready by the described proportioning of resistance-lowering material, micro crystal graphite is added hybrid heating device or/and forge back Jiao, stir, be heated to uniform temperature, add pitch then, fully mix, make resistance-lowering material mixing thing;
(3) pole piece and the butt joint connector that are fixed together are put in the mould, then resistance-lowering material mixing thing is injected in the mould condensation moulding of repressed back.
Heating-up temperature is between 100 ℃～200 ℃, so that pitch, micro crystal graphite fully merge, are mixed.For better moulding, one-time formed non-corrosive assembled grounding electrode can be put into condensation in the post forming mould, press solidly, mark is straight.
Claims (15)
1. non-corrosive assembled grounding electrode, contain metallic conductor earth electrode pole piece, be connected with metallic conductor butt joint connector at the two ends of described metallic conductor earth electrode pole piece, it is characterized in that: be enclosed with the resistance-lowering material layer around the metallic conductor earth electrode pole piece between described butt joint connector, described resistance-lowering material layer is made up of 10～25% pitch and 75～90% micro crystal graphites.
2. non-corrosive assembled grounding electrode according to claim 1, it is characterized in that: earth electrode is shaped as cylinder, and its two ends butt joint connector is a rosette, and resistance-lowering material layer external diameter is identical with the rosette external diameter; Butt joint connector or be flange.
3. non-corrosive assembled grounding electrode according to claim 1 is characterized in that: earth electrode is shaped as oval cylinder, or is multiedge cylinder, and the butt joint connector shape at its two ends is identical with resistance-lowering material layer cross section shape.
4. non-corrosive assembled grounding electrode according to claim 1 is characterized in that: earth electrode is shaped as oval cylinder, or is multiedge cylinder, and the butt joint connector at its two ends is a flange.
5. according to each described non-corrosive assembled grounding electrode of claim 1～4, it is characterized in that: two butt joint connector relative inner at metallic conductor earth electrode pole piece two ends respectively are provided with wedge shape or columnar protrusions or reinforcement.
6. non-corrosive assembled grounding electrode, contain metallic conductor earth electrode pole piece, be connected with metallic conductor butt joint connector at the two ends of described metallic conductor earth electrode pole piece, it is characterized in that: be enclosed with the resistance-lowering material layer around the metallic conductor earth electrode pole piece between described butt joint connector, described resistance-lowering material layer forges by 10～25% pitch and 75～90% that the back is burnt to be formed.
7. non-corrosive assembled grounding electrode according to claim 6, it is characterized in that: earth electrode is shaped as cylinder, and its two ends butt joint connector is a rosette, and resistance-lowering material layer external diameter is identical with the rosette external diameter; Butt joint connector or be flange.
8. non-corrosive assembled grounding electrode according to claim 6 is characterized in that: earth electrode is shaped as oval cylinder, or is multiedge cylinder, and the butt joint connector shape at its two ends is identical with resistance-lowering material layer cross section shape.
9. non-corrosive assembled grounding electrode according to claim 6 is characterized in that: earth electrode is shaped as oval cylinder, or is multiedge cylinder, and the butt joint connector at its two ends is a flange.
10. according to each described non-corrosive assembled grounding electrode of claim 6～9, it is characterized in that: two butt joint connector relative inner at metallic conductor earth electrode pole piece two ends respectively are provided with wedge shape or columnar protrusions or reinforcement.
11. non-corrosive assembled grounding electrode, contain metallic conductor earth electrode pole piece, be connected with metallic conductor butt joint connector at the two ends of described metallic conductor earth electrode pole piece, it is characterized in that: be enclosed with the resistance-lowering material layer around the metallic conductor earth electrode pole piece between described butt joint connector, described resistance-lowering material layer is made up of 10～25% pitch and 75～90% the micro crystal graphite mixture burnt with forging the back.
12. non-corrosive assembled grounding electrode according to claim 11 is characterized in that: earth electrode is shaped as cylinder, its two ends butt joint connector is a rosette, and resistance-lowering material layer external diameter is identical with the rosette external diameter; Butt joint connector or be flange.
13. non-corrosive assembled grounding electrode according to claim 11 is characterized in that: earth electrode is shaped as oval cylinder, or is multiedge cylinder, and the butt joint connector shape at its two ends is identical with resistance-lowering material layer cross section shape.
14. non-corrosive assembled grounding electrode according to claim 11 is characterized in that: earth electrode is shaped as oval cylinder, or is multiedge cylinder, and the butt joint connector at its two ends is a flange.
15. according to each described non-corrosive assembled grounding electrode of claim 11～14, it is characterized in that: two butt joint connector relative inner at metallic conductor earth electrode pole piece two ends respectively are provided with wedge shape or columnar protrusions or reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2006101283450A CN101030458B (en) | 2006-12-06 | 2006-12-06 | Non-corrosive assembled grounding electrode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101283450A CN101030458B (en) | 2006-12-06 | 2006-12-06 | Non-corrosive assembled grounding electrode |
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| CN101030458A CN101030458A (en) | 2007-09-05 |
| CN101030458B true CN101030458B (en) | 2010-12-08 |
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| CN2006101283450A Expired - Fee Related CN101030458B (en) | 2006-12-06 | 2006-12-06 | Non-corrosive assembled grounding electrode |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101958499A (en) * | 2010-06-24 | 2011-01-26 | 天津市普瑞电力科学研究有限责任公司 | Combined saline-alkali corrosion resistant grounding body die |
| CN102082331A (en) * | 2011-02-25 | 2011-06-01 | 大庆奉天电力器材厂 | Carbonized grounding electrode and preparation method thereof |
| CN103065703B (en) * | 2012-11-29 | 2015-09-16 | 郑州市永逸降阻材料有限公司 | Corrosion-free conduction resistance-lowering material and earth device without maintenance thereof |
| CN103268988B (en) * | 2013-05-13 | 2015-07-22 | 王要增 | Grounding module material |
| CN105024179B (en) * | 2015-07-23 | 2017-05-17 | 中国平煤神马集团汝州电化有限公司 | Grounding electrode for burn-through transformer for calcium carbide furnace and mounting method of grounding electrode |
| CN105255191A (en) * | 2015-10-21 | 2016-01-20 | 国家电网公司 | Grounding module modified through carbon nano tubes and preparation method of grounding module |
| CN105529114A (en) * | 2016-01-29 | 2016-04-27 | 常州创索新材料科技有限公司 | Preparing method of microorganism composite resistance reducing material |
| CN107102219B (en) * | 2017-03-08 | 2019-09-10 | 国网山西省电力公司大同供电公司 | A kind of impact diffusing pilot system for the compound earthing material of graphite |
| CN108521062A (en) * | 2018-04-04 | 2018-09-11 | 山西省工业设备安装集团有限公司 | A kind of mud stone class plant area grounding construction method |
| CN108429109A (en) * | 2018-04-04 | 2018-08-21 | 山西省工业设备安装集团有限公司 | A kind of mud stone class geology Grounding Measure of GSM |
| CN108766624A (en) * | 2018-06-20 | 2018-11-06 | 河南四达电力设备股份有限公司 | A kind of paste graphite ion resistance-lowering material and preparation method thereof |
| CN109503168A (en) * | 2018-10-08 | 2019-03-22 | 湖北捷地安电气有限公司 | A kind of efficient discharge earthing module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110013A (en) * | 1993-08-27 | 1995-10-11 | 王奎宏 | Anti-thunderstrock grounding device of composite carbon material and making method thereof |
| CN1304870A (en) * | 2000-09-26 | 2001-07-25 | 中国科学院山西煤炭化学研究所 | Process for preparing low-resistivity carbon material |
| CN2598167Y (en) * | 2003-01-08 | 2004-01-07 | 寇承平 | Composite grounding module |
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2006
- 2006-12-06 CN CN2006101283450A patent/CN101030458B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1110013A (en) * | 1993-08-27 | 1995-10-11 | 王奎宏 | Anti-thunderstrock grounding device of composite carbon material and making method thereof |
| CN1304870A (en) * | 2000-09-26 | 2001-07-25 | 中国科学院山西煤炭化学研究所 | Process for preparing low-resistivity carbon material |
| CN2598167Y (en) * | 2003-01-08 | 2004-01-07 | 寇承平 | Composite grounding module |
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