CN101752684A - Grounding electrode of anti-corrosion and adjustable grounding resistor - Google Patents
Grounding electrode of anti-corrosion and adjustable grounding resistor Download PDFInfo
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- CN101752684A CN101752684A CN201010102004A CN201010102004A CN101752684A CN 101752684 A CN101752684 A CN 101752684A CN 201010102004 A CN201010102004 A CN 201010102004A CN 201010102004 A CN201010102004 A CN 201010102004A CN 101752684 A CN101752684 A CN 101752684A
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Abstract
The invention relates to a grounding electrode in a lightning protection grounding system of a power station, a transformer grounding network, a high-voltage power transmission line iron tower, an electrified railway grounding system, a wireless communication transmitting tower, a transformer neutral point, a high-rise building, a large computer and a microelectronic equipment system equipment center. The grounding electrode comprises a grounding electrode main body which is a thick-walled and seamless steel tube; the thickness of the wall of the steel tube is more than 8-10mm, the inner wall and the outer wall thereof are provided with an anti-corrosion conducting film, the lower end thereof is provided with a sealing head, the top end thereof is provided with an openable packing port, and the wall thereof is provided with a releasing hole; and the steel tube is externally provided with an external packing with good electric conduction, corrosion prevention and water permeability, and an interface connected with the grounding network and an equipment grounding lead. The grounding electrode has convenient and fast installation and construction, good resistance-reducing effect and convenient maintenance with the service life thereof of being not lower than that of the grounding equipment, and is a grounding electrode which not only meets the anti-corrosion function of the grounding electrode in the grounding network, but also reduces the grounding resistance performance of the grounding electrode.
Description
Technical field
The present invention relates to earth electrode, high-voltage transmission line towers, electric railway grounding system, the wireless telecommunications launching tower of power plant, grounding net of transformer substation, the earth electrode of transformer neutral point, and the earth electrode in the lightning protection earthing system at skyscraper, mainframe computer, microelectronic device system equipment center, resistance falls in earth electrode, earth electrode is anticorrosion, and the technical field of earth electrode making.
Background technology
Earth electrode is meant that earth connection buries part in the ground, generally comprise earth electrode, high-voltage transmission line towers, electric railway grounding system, the wireless telecommunications launching tower of power plant, grounding net of transformer substation, the earth electrode of transformer neutral point, and the earth electrode in the lightning protection earthing system at skyscraper, mainframe computer, microelectronic device system equipment center.The earth electrode of in large-scale grounding network, installing, what routine adopted is the Zinc-coated angle steel of φ 60 coating steel pipes or 50 * 5, because the electrochemical etching that caused by high-tension apparatus earial drainage, soil soda acid, make the earth electrode section loss very fast, increased the grounding resistance of earth electrode, reduced the releasability of earth electrode to lightning current, it is poor to have raised the electric potential gradient of ground network when discharging lightning current, and the electric equipment safety of power plant transformer station is threatened.Especially center, high voltage power transmission iron tower are used in skyscraper, large computer system work; wireless telecommunications launching tower etc.; in case earth electrode is raise by heavy corrosion or earth resistance; just equal to have lost the lightning protection protection; when meeting with thunder and lightning and attack, the harm that personnel and electric equipment are caused will be heavy.
The electric power of some areas, the ground network of communication system and earth electrode, though adopted nano-carbon anticorrosion conductive coating, increased the useful life of earth electrode, it can not reduce grounding resistance, the releasability of lightning current can not be strengthened, the thunder and lightning disaster can not be reduced.
Little at rainfall of the skyscraper in groundwater table decreasing serious area, the earth electrode earth resistance of electric equipment significantly raise, especially in the mountain area, the power plant in hills, desert arid area short of rain, transformer station, high-voltage power transmission tower, wireless telecommunications launching tower etc., it is very difficult making earth resistance reach that rules require.
The scene generally adopts reduction earth resistance method to have at present: fall the resistance module and can discharge electrolytical earth electrode as installing graphite in a large number additional, the resistance module falls in graphite electrode and copper covered steel electrolyte earth electrode all is corrosive to the ground network line, environment deposited all there is certain pollution, and can not keep earth resistance stable operation for a long time.The back earth resistance gos up for many years, is difficult to have the earth resistance of reduction method again, can only be to throw in substantial contribution once more to change, and needs to expend a large amount of manpower and materials simultaneously.Routine can only be for reducing earth resistance, and significantly install the graphite resistance module additional, falling the resistance powder with graphite adds and buries ground connection netting twine and earth electrode or adopt copper covered steel to discharge electrolytical earth electrode, these materials all have certain corrosivity to zinc-coated flat steel sheet, the round steel of routine, especially utilize graphite to divide resistance reducing agent very serious, and underground water and soil earth environment is caused irreversible pollution zinc-plated earth electrode corrosion.
Summary of the invention
Purpose of the present invention just is to provide a kind of earth electrode of new-type anticorrosion, adjustable earth resistance, its installation is convenient, resistance reducing effect is good, be convenient to safeguard, be not less than ground installation useful life useful life, be both to have satisfied the anti-corrosion function of earth electrode in the ground network, reach the earth electrode that reduces earth electrode earth resistance performance again.
Technical scheme of the present invention is: the present invention---anticorrosion, the earth electrode of adjustable earth resistance, comprise thick-walled seamless steel pipes as the earth electrode main body, thickness of steel pipe is more than 8-10mm, in the steel pipe, outer wall all is provided with anticorrosion conducting film, the steel pipe lower end is provided with the end socket of being convenient to insert the earth, the steel pipe top is provided with can open feeding port, on steel pipe walls, offer release aperture, in steel pipe, fill out to be provided with and have suction, the interior filler of water retention property also can be described as the water conservation resistance reducing agent, in the steel pipe upper end, be provided with dustproof anti-foreign material on the filler and enter plug, adopt specific purpose tool to open at any time, replenishing the interior filler of interpolation is the water conservation resistance reducing agent, outside steel pipe, be provided with conduction, do not corrode, the outer filler that water permeability is good below steel pipe upper end open place, is provided with the interface that connects ground network and equipment ground lead-in wire.
The anticorrosion conducting film that is located on the steel pipe inner and outer walls of the present invention adopts nano-carbon anticorrosion conductive coating; The described interior filler that is filled in the steel pipe adopts environmental protection, the water-loss reducer of conduction; Described outer filler adopts the good raw ore granular materials of conduction; Here saying that the good raw ore granular materials of conduction can be single pure conducting metal original ore powder, also can be the conducting metal original ore powder that mixes.Middle hypomere at above-mentioned earth electrode main body steel pipe is provided with the lengthening joint that can connect extension pipe.
Operation principle of the present invention is: the very anticorrosive contact tube of ground connection of the present invention inserts the earth; the degree of depth; angle requires to determine arbitrarily according to geological conditions and earth resistance; a plurality of respiration apocatharsis micropores are arranged on the electrode tube wall; after earth electrode installs; load the environmental protection crystalline compounds in the pipe; spiracle absorbs the moisture content of construction backfill; absorb nature sky rainfall water after putting into operation; make the environmental protection chemical crystal become electrolytic solution; infiltrate soil and become the good electrolytic ion soil of conductance; the electrolyte that forms is in the mountain area; hills and drought desert area make the geologic structure of original conductance extreme difference to the infiltration of depth direction, form the favorable conductive passage.Farthest reduced the bleeder resistor between earth electrode and the surrounding soil.
The present invention adopts its beneficial effect that is produced of technique scheme to be:
Employing can be adjusted earth resistance and conduct electricity the corrosion-resistant earth electrode again, and its collection is anticorrosion, fall resistance is the professional technique of one.It had both possessed anti-corrosion function, possesses the earth resistance of adjustment function again, reach the function of automatic reduction earth resistance again by natural precipitation, its maintenance period can be for many years once, and filler, inspection, maintaining method be characteristics very easily all, make earth resistance forever reach the rules required value, the corrosion fatigue life that can make earth electrode is greater than ground installation useful life.
The antiacid caustic corrosion ability of earth electrode steel pipe was strong after the logical inwall outer wall of earth electrode steel pipe carried out preservative treatment, construction need not to deep-cut a large amount of cubic metres of earth, throw machine or the boring of small-sized trepan into micro hydraulic, insert then and can adjust earth resistance and conduct electricity the corrosion-resistant earth electrode again, conduction raw ore metal powder particle is added in the outside slit of earth electrode, dustproof, the anti-soil of installation entered plug after the dress water-loss reducer was added in earth electrode pipe inside, dust plug must just can be opened with specific purpose tool, connect earth connection, tamp in earth electrode external water flood.Anticorrosion inspection of later stage, measurement of Grounding Resistance are all very convenient.Dress environmental protection water conservation resistance reducing agent is added in earth electrode tubing inside, first utilization manually adds water and reaches design load, fall later on and accumulate rainwater and replenish by the nature sky, keeping the condition and the corrosion resistant raw ore conductive particulate materials of interpolation of the environmental protection water-loss reducer decomposition in the earth electrode permeates to the earth depth, reach and lean on the sky, do not need manpower to go to carry out conventional frequent inspection and measurement again rainwater and environmental protection water-loss reducer natural combination.Can save a large amount of time, the man power and material.Significantly improve security reliability.
Earth resistance gos up after several years, falls resistance water-loss reducer consumption loss, can open dust plug at any time, adds environmental protection water conservation resistance reducing agent, and grounding resistance is permanent to keep stable to keep.
The conduction anti-corrosion material that the earth electrode external application is added, employing has the good raw ore granular materials of conduction, as the good original ore powder of conduction such as various iron ores, they corrosion-resistant, permeable, electric conductivity is all very good, significantly increases the very much effective surface area of earth electrode, has reduced earth resistance.(according to experimental result, the original ore powder particle is embedded in the sign that is not corroded over all-environment underground ten years).
Environment friendly corrosion protection earth electrode of the present invention is according to the particular surroundings of electric power system, electric railway grounding system and the changeable complexity of operational mode, and development.The present invention makes the earth resistance of power plant, transformer station, electric railway traction transformer station and high-tension transmission overhead line structures under particular surroundings reach the rules required value for a long time.The scope of application of the present invention is:
1, is applicable to the ground network engineering of power plant, transformer station, wind power plant;
2, be applicable to lightning protection, mobile communication base station, the microwave communication station of the extra high voltage network shaft tower of approach mountain area, hills, arid area, desert;
3, be applicable to the earth mat engineering in seriously corroded area and high soil earth resistance rate area;
4, be applicable to design load less than the computer room ground network below 1 Ω, automation control room earth mat, precision equipment ground network;
5, the earth electrode of electric railway rail balance of voltage coil, return wire
6, be applicable to that the earth resistance of erection unit drops to the rules required value under the particular surroundings.Earth electrode
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is for being coated with the structural representation of anticorrosion conducting film on the inside and outside wall of main body steel pipe among the present invention
Embodiment
The present invention is anticorrosion as shown in drawings, the earth electrode of adjustable earth resistance, comprise thick-walled seamless steel pipes 3 as the earth electrode main body, steel pipe 3 wall thickness are more than 8-10mm, in the steel pipe 3, outer wall all is provided with anticorrosion conducting film 9, steel pipe 3 lower ends are provided with the end socket of being convenient to insert the earth, the steel pipe top is provided with can open feeding port 1, on steel pipe 3 walls, offer electrolyte release aperture 11, in steel pipe, fill out to be provided with and have suction, the interior filler 5 of water retention property also can be described as the water conservation resistance reducing agent, in interior filler 5 upper end steel pipes, be provided with dustproof anti-foreign material and enter plug 2, adopt specific purpose tool to open at any time, filler is the water conservation resistance reducing agent in the interpolation so that replenish, outside steel pipe 3, be provided with conduction, do not corrode, the outer filler 6 that water permeability is good below steel pipe upper end open place, is provided with the interface 4 that connects ground network 7 and equipment ground lead-in wire 8.Middle hypomere at above-mentioned earth electrode main body steel pipe 3 is provided with the lengthening joint 10 that can connect extension pipe.
Anticorrosion conducting film 9 on the inside and outside wall that is located at steel pipe 3 of the present invention adopts nano-carbon anticorrosion conductive coatings; The described interior filler 5 that is filled in the steel pipe adopts environmental protection, the water-loss reducer of conduction; Described outer filler 6 adopts the good raw ore granular materials of conduction; Here saying that the good raw ore granular materials of conduction can be single pure conducting metal original ore powder, also can be the conducting metal original ore powder that mixes.
Claims (3)
1. anticorrosion, the adjustable ground resistance earth utmost point, it is characterized in that: this earth electrode comprises the thick-walled seamless steel pipes as the earth electrode main body, thickness of steel pipe is located at more than the 8-10mm, in the steel pipe, outer wall all is provided with anticorrosion conducting film, the steel pipe lower end is provided with the end socket of being convenient to insert the earth, the steel pipe top is provided with can open feeding port, on steel pipe walls, offer release aperture, in steel pipe, fill out to be provided with and have suction, the interior filler of water retention property, in the steel pipe upper end, be provided with dustproof anti-foreign material on the filler and enter plug, outside steel pipe, be provided with conduction, do not corrode, the outer filler that water permeability is good below steel pipe upper end open place, is provided with the interface that connects ground network and equipment ground lead-in wire.
2. anticorrosion, the adjustable ground resistance earth utmost point according to claim 1 is characterized in that: the described anticorrosion conducting film that is located on the steel pipe inner and outer walls adopts nano-carbon anticorrosion conductive coating; The described interior filler that is filled in the steel pipe adopts environmental protection, the water-loss reducer of conduction; The good raw ore granular materials of described outer filler conduction.
3. anticorrosion, the adjustable ground resistance earth utmost point according to claim 1 is characterized in that: the middle hypomere at above-mentioned earth electrode main body steel pipe is provided with the lengthening joint that can connect extension pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010102004A CN101752684A (en) | 2010-01-28 | 2010-01-28 | Grounding electrode of anti-corrosion and adjustable grounding resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010102004A CN101752684A (en) | 2010-01-28 | 2010-01-28 | Grounding electrode of anti-corrosion and adjustable grounding resistor |
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| CN101752684A true CN101752684A (en) | 2010-06-23 |
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| CN201010102004A Pending CN101752684A (en) | 2010-01-28 | 2010-01-28 | Grounding electrode of anti-corrosion and adjustable grounding resistor |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989687A (en) * | 2010-11-22 | 2011-03-23 | 成都桑莱特科技股份有限公司 | Composite ion grounding body |
| CN103001098A (en) * | 2012-12-04 | 2013-03-27 | 铜川供电局 | Method for improving anti-corrosion capacity of grounding grid of transmission line tower |
| CN103457046A (en) * | 2013-09-17 | 2013-12-18 | 国网河南省电力公司焦作供电公司 | Ground wire protection device and ground wire laying method |
| CN103779673A (en) * | 2013-09-16 | 2014-05-07 | 国家电网公司 | Ground wire device and laying method |
| CN103928773A (en) * | 2014-04-25 | 2014-07-16 | 广东电网公司惠州供电局 | Method for improving transformer substation soil moisture content |
| CN104319498A (en) * | 2014-11-18 | 2015-01-28 | 句容华源电器设备有限公司 | Lightning preventing and resistance reducing method for substation grounding resistance |
| CN105206950A (en) * | 2015-10-10 | 2015-12-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep-hole two-point detonation grounding electrode structure and high-pressure pouring construction method thereof |
| CN106356651A (en) * | 2016-10-12 | 2017-01-25 | 国网江苏省电力公司盱眙县供电公司 | Pre-buried ground stud |
| CN106877019A (en) * | 2017-02-15 | 2017-06-20 | 中铁二十局集团电务电化工程有限公司 | A kind of arid geology grounded screen and its construction and application method |
| CN112350128A (en) * | 2020-09-28 | 2021-02-09 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Manufacturing method of grounding device of open-air limestone mine power supply system |
| CN114267970A (en) * | 2022-01-04 | 2022-04-01 | 天威保变（秦皇岛）变压器有限公司 | Grounding device of oil-immersed transformer |
-
2010
- 2010-01-28 CN CN201010102004A patent/CN101752684A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989687B (en) * | 2010-11-22 | 2012-11-21 | 成都桑莱特科技股份有限公司 | Composite ion grounding body |
| CN101989687A (en) * | 2010-11-22 | 2011-03-23 | 成都桑莱特科技股份有限公司 | Composite ion grounding body |
| CN103001098A (en) * | 2012-12-04 | 2013-03-27 | 铜川供电局 | Method for improving anti-corrosion capacity of grounding grid of transmission line tower |
| CN103001098B (en) * | 2012-12-04 | 2015-04-22 | 铜川供电局 | Method for improving anti-corrosion capacity of grounding grid of transmission line tower |
| CN103779673A (en) * | 2013-09-16 | 2014-05-07 | 国家电网公司 | Ground wire device and laying method |
| CN103457046B (en) * | 2013-09-17 | 2016-08-17 | 国家电网公司 | A kind of earth lead protection device |
| CN103457046A (en) * | 2013-09-17 | 2013-12-18 | 国网河南省电力公司焦作供电公司 | Ground wire protection device and ground wire laying method |
| CN103928773A (en) * | 2014-04-25 | 2014-07-16 | 广东电网公司惠州供电局 | Method for improving transformer substation soil moisture content |
| CN104319498A (en) * | 2014-11-18 | 2015-01-28 | 句容华源电器设备有限公司 | Lightning preventing and resistance reducing method for substation grounding resistance |
| CN105206950A (en) * | 2015-10-10 | 2015-12-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Deep-hole two-point detonation grounding electrode structure and high-pressure pouring construction method thereof |
| CN105206950B (en) * | 2015-10-10 | 2017-10-03 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of 2 pinking earthing pole structures of deep hole and its high pressure pouring construction method |
| CN106356651A (en) * | 2016-10-12 | 2017-01-25 | 国网江苏省电力公司盱眙县供电公司 | Pre-buried ground stud |
| CN106877019A (en) * | 2017-02-15 | 2017-06-20 | 中铁二十局集团电务电化工程有限公司 | A kind of arid geology grounded screen and its construction and application method |
| CN112350128A (en) * | 2020-09-28 | 2021-02-09 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Manufacturing method of grounding device of open-air limestone mine power supply system |
| CN114267970A (en) * | 2022-01-04 | 2022-04-01 | 天威保变（秦皇岛）变压器有限公司 | Grounding device of oil-immersed transformer |
| CN114267970B (en) * | 2022-01-04 | 2023-08-15 | 天威保变（秦皇岛）变压器有限公司 | Grounding device of oil immersed transformer |
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Inventor after: Gao Zheng Inventor after: Li Zhen Inventor after: Gao Yonglu Inventor before: Gao Zheng Inventor before: Li Zhen Inventor before: Gao Yonglu Inventor before: Qi Cuan Inventor before: Wang Pengyu |
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Free format text: CORRECT: INVENTOR; FROM: GAO ZHENG LI ZHEN GAO YONGLU QI XIN WANG PENGYU TO: GAO ZHENG LI ZHEN GAO YONGLU |
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Open date: 20100623 |