CN103117459A - Reinforced grounding current diffusion device of power transmission line tower - Google Patents
Reinforced grounding current diffusion device of power transmission line tower Download PDFInfo
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- CN103117459A CN103117459A CN2013100383502A CN201310038350A CN103117459A CN 103117459 A CN103117459 A CN 103117459A CN 2013100383502 A CN2013100383502 A CN 2013100383502A CN 201310038350 A CN201310038350 A CN 201310038350A CN 103117459 A CN103117459 A CN 103117459A
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Abstract
The invention discloses a reinforced grounding current diffusion device of a power transmission line tower. The reinforced grounding current diffusion device mainly comprises needle grounding electrodes, a hollow column and a water injection pipe. The reinforced grounding current diffusion device has the advantages of simple structure, convenience in construction, low engineering cost, good current diffusion characteristic, low grounding resistance, corrosion resistance, zero environmental pollution and the like, can be widely applied to reducing grounding resistance, and is particularly applicable to arid regions, rocky regions, regions with high soil resistivity and regions with violent thunderstorm activities.
Description
Technical field
The invention belongs to the electrical earth device technical field, be specifically related to a kind of electric power line pole tower reinforced ground diffusing device.
Background technology
For the earth resistance that reduces overhead line structures, the measure of usually adopting in engineering mainly contains the size, the buried depth, the Down conductor that increase earth electrode that increase the ground network area, increase earth electrode, utilizes natural grounding substance, soil removal and replacement, employing resistance reducing agent etc.These fall the resistance measure its relative application conditions, and for different areas, different edaphic condition adopts diverse ways just can effectively reduce earth resistance.But, in implementation process, tending to run into difficulty of construction larger, engineering cost is higher, site condition restriction, the problems such as environmental pollution.And because the electric power line pole tower floor space is less, especially in high soil resistivity, the earth resistance of shaft tower usually can't reach the desired level of rules, is difficult to obtain satisfied resistance reducing effect.Current, China just is being devoted to the intelligent grid construction, and this has also proposed requirements at the higher level to the safety and reliability of power system transmission line.Generally speaking, the development of electric power system has proposed more and more higher requirement to grounding technology, only depends on traditional earthing device and grounding technology, is difficult to meet the demands.
Summary of the invention
The objective of the invention is to fall for existing electric power line pole tower the weak point of resistance measure, propose a kind of electric power line pole tower reinforced ground diffusing device, have simple structure, easy construction, engineering cost is low, and characteristics of the dispersed flow is good, earth resistance is little, and is corrosion-resistant, the characteristics such as environmentally safe.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
A kind of electric power line pole tower reinforced ground diffusing device mainly comprises acupuncture earth electrode, empty stomach cylinder, water injection pipe.
Described acupuncture earth electrode is made of 1 horizontal grounding utmost point and 2 ~ 10 acupuncture conductors.The described horizontal grounding utmost point and acupuncture conductor are the galvanized steel bar that commercial diameter is 10 ~ 20mm, have certain intensity and corrosion resistance, the corrosion in ability soil and external force resistance vibration.Described horizontal grounding utmost point length is 1000 ~ 2000mm, is used for earth current and is inducted into soil.The length of every described acupuncture conductor is 100 ~ 200mm, is used for impulse current is dispensed into soil.The center of every described acupuncture conductor is the middle part that 100 ~ 200mm is welded on the described horizontal grounding utmost point by the spacing of every adjacent two, and every described acupuncture conductor is all extremely vertical with described horizontal grounding.The concrete radical of described acupuncture conductor is determined according to the impulse grounding resistance value that reaches of require.
Described water injection pipe is that diameter is 15mm, and length is about the steel pipe of 300mm, is welded on first cylindrical shell of described empty stomach cylinder, and Main Function is to inject moisture by water injection pipe to described empty stomach cylinder.
The Main Function of described empty stomach cylinder is keep argillic horizon and surrounding soil moistening, and the conductive ion that hydrolysis produces will increase the electric conductivity of soil, and soil resistivity is much improved.Described empty stomach cylinder is 500mm by upper and lower two parts length, wide is the cylinder shelly steel plate formation of 350mm, two parts cylindrical shell adopts the flange that is threaded to connect, and is used for fixing up and down two parts cylindrical shell, and the empty stomach cylinder outward appearance after assembling is presented the cylinder that bottom surface is cambered surface.Described top divides cylindrical shell shell and the welding of described water injection pipe to be linked to be integral body, diameter is that the water injection hole of 15mm is positioned at the long 60mm of being of a side of dividing cylindrical shell apart from described top, wide is the position of 175mm, divide the opposite side of cylindrical shell to be distributed with 10 water seepage holes that diameter is 5mm on described top, be scattered in two rows, spacing between two rows is 60mm, and the spacing at keep to the side a upper row and edge is 50mm.Dividing the even distribution diameter of cylindrical shell shell surrounding on described top is the bolt hole of 10mm, is used for fixing up and down two parts cylindrical shell.The grounding flat steel of described the latter half cylindrical shell and the wide 30mm of being welds and is linked to be integral body, the other end relative with grounding flat steel is evenly distributed with 10 water seepage holes that diameter is 5mm, be scattered in two rows, every row's spacing is 60mm, and the spacing at keep to the side a upper row and edge is 50mm.Dividing the even distribution diameter of cylindrical shell shell surrounding in described bottom is the bolt hole of 10mm, is used for fixing up and down two parts cylindrical shell.
Described acupuncture earth electrode is fixed in the place, four angles of the first half cylindrical shell of described empty stomach cylinder with bolt, the clay of 1/3 capacity will be filled in described empty stomach cylinder, then with the whole hole of putting into of described empty stomach cylinder, after backfill clay and the compacting of watering, to fill water in described empty stomach cylinder again, and weld with described grounding flat steel.
The present invention compared with prior art has the following advantages:
1. the shared land area of this device is less, needs the ground connection hole of excavation also smaller, and the workload of project installation is little.
2. the water that connects in described empty stomach cylinder of this device immerses the earth lentamente along with the aperture of earth electrode, reduce on the one hand contact resistance, keep on the other hand the moistening of argillic horizon and surrounding soil, the conductive ion that hydrolysis produces will increase the electric conductivity of soil, and soil resistivity is much improved.More advantageously described empty stomach cylinder can pass through a filling pipe, keeps at any time the stable of water capacity in ball, also makes this resistance reducing effect must be in long-term existence.
3. this device need not add chemical resistance-reducing agent, environmentally safe.
4. this apparatus main body adopts the quality steel plate welding of processing through hot galvanizing to make, and resistance to corrosion is strong, and because the backfill close properties of soil strengthens in time, so the growth that earth resistance will be in time and significantly descending, therefore apparatus of the present invention long service life.
Impulse current along earthing conductor to soil in the diffusing process, larger at decanting point and earth electrode end diffusing value, have " end effect ".The present invention has suppressed " end effect " of conductor by a plurality of minutes current conductors of welding on the drainage conductor, has fully used the middle part diffusing ability of conductor, makes diffusing more even, has reduced earth resistance.
Earthing device of the present invention can be widely used in the reduction earth resistance, is particularly suitable for arid area, Rock Region, high soil resistivity and thunderstorm movable strong area.
Description of drawings
Fig. 1 is apparatus of the present invention structural representation.
Fig. 2 is the structural representation of acupuncture earth electrode described in apparatus of the present invention;
Fig. 3 be described in apparatus of the present invention on an empty stomach cylinder top divide cylinder shell structure schematic diagram;
Fig. 4 be described in apparatus of the present invention on an empty stomach the cylinder bottom divide cylinder shell structure schematic diagram;
Fig. 5 be described in apparatus of the present invention on an empty stomach the cylinder top of having installed water injection pipe divide the cylindrical shell three-dimensional effect diagram.
Fig. 6 be described in apparatus of the present invention on an empty stomach the cylinder bottom of having installed water injection pipe divide the cylindrical shell three-dimensional effect diagram.
In figure: acupuncture earth electrode 1, empty stomach cylinder 2, water injection pipe 3, the horizontal grounding utmost point 4, acupuncture conductor 5, water seepage hole 6, bolt hole 7, water injection hole 8, grounding flat steel 9.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
The structure of a kind of electric power line pole tower reinforced ground of the present invention diffusing device such as Fig. 1～shown in Figure 4, mainly comprise acupuncture earth electrode 1, empty stomach cylinder 2, water injection pipe 3.
Described acupuncture earth electrode 1 is made of 1 horizontal grounding utmost point 4 and 2 ~ 10 acupuncture conductors 5.The described horizontal grounding utmost point 4 and acupuncture conductor 5 are the galvanized steel bar of 10 ~ 20mm for commercial diameter, have certain intensity and corrosion resistance, the corrosion in ability soil and external force resistance vibration.The described horizontal grounding utmost point 4 length are 1000 ~ 2000mm, are used for earth current and are inducted into soil.The length of every described acupuncture conductor 5 is 100 ~ 200mm, is used for impulse current is dispensed into soil.The center of every described acupuncture conductor 5 is the middle part that 100 ~ 200mm is welded on the described horizontal grounding utmost point 4 by the spacing of every adjacent two, and every described acupuncture conductor 5 is all vertical with the described horizontal grounding utmost point 4.The concrete radical of described acupuncture conductor 5 is determined according to the impulse grounding resistance value that reaches of require.
Described water injection pipe 3 is 15mm for diameter, and length is about the steel pipe of 300mm, is welded on first cylindrical shell of described empty stomach cylinder (2), and Main Function is to inject moisture by water injection pipe to described empty stomach cylinder.
The Main Function of described empty stomach cylinder is keep argillic horizon and surrounding soil moistening, and the conductive ion that hydrolysis produces will increase the electric conductivity of soil, and soil resistivity is much improved.Described empty stomach cylinder 2 is 500mm by upper and lower two parts length, wide is the cylinder shelly steel plate formation of 350mm, two parts cylindrical shell adopts the flange that is threaded to connect, and is used for fixing up and down two parts cylindrical shell, and the empty stomach cylinder outward appearance after assembling is presented the cylinder that bottom surface is cambered surface.Described top divides cylindrical shell shell and 3 welding of described water injection pipe to be linked to be integral body, diameter is that the water injection hole 8 of 15mm is positioned at the long 60mm of being of a side of dividing cylindrical shell apart from described top, wide is the position of 175mm, divide the opposite side of cylindrical shell to be distributed with 10 water seepage holes 6 that diameter is 5mm on described top, be scattered in two rows, spacing between two rows is 60mm, and the spacing at keep to the side a upper row and edge is 50mm.Dividing the even distribution diameter of cylindrical shell shell surrounding on described top is the bolt hole 7 of 10mm, is used for fixing up and down two parts cylindrical shell.The grounding flat steel 9 of described the latter half cylindrical shell and the wide 30mm of being welds and is linked to be integral body, the other end relative with grounding flat steel 9 is evenly distributed with 10 water seepage holes 6 that diameter is 5mm, be scattered in two rows, every row's spacing is 60mm, and the spacing at keep to the side a upper row and edge is 50mm.Dividing the even distribution diameter of cylindrical shell shell surrounding in described bottom is the bolt hole 7 of 10mm, is used for fixing up and down two parts cylindrical shell.
Described acupuncture earth electrode 1 use bolt is fixed in the place, four angles of the first half cylindrical shell of described empty stomach cylinder 2, clay with interior filling 1/3 capacity of described empty stomach cylinder 2, then with the whole hole of putting into of described empty stomach cylinder 2, after backfill clay and the compacting of watering, to fill water in described empty stomach cylinder 2 again, and weld with described grounding flat steel 9.
As Fig. 1～shown in Figure 4, a kind of electric power line pole tower reinforced ground diffusing device mainly comprises acupuncture earth electrode 1, cylinder 2, water injection pipe 3 on an empty stomach.The Main Function of described empty stomach cylinder 2 is keep argillic horizon and surrounding soil moistening, and the conductive ion that hydrolysis produces will increase the electric conductivity of soil, and soil resistivity is much improved.Described water injection pipe 3 is 15mm for diameter, and length is about the steel pipe of 300mm, is welded in first cylindrical shell of described empty stomach cylinder, and Main Function is to inject moisture by water injection pipe to described empty stomach cylinder.Described acupuncture earth electrode 1 use bolt is fixed in the place, four angles of the first half cylindrical shell of described empty stomach cylinder 2, is used for the electric current dispersion train is entered soil.
Described acupuncture earth electrode 1 is made of 1 horizontal grounding utmost point 4 and 2 ~ 10 acupuncture conductors 5.The described horizontal grounding utmost point 4 and acupuncture conductor 5 are the galvanized steel bar of 10 ~ 20mm for commercial diameter, have certain intensity and corrosion resistance, the corrosion in ability soil and external force resistance vibration.The described horizontal grounding utmost point 4 length are 1000mm, are used for earth current and are inducted into soil.The length of every described acupuncture conductor 5 is 100mm, is used for impulse current is dispensed into soil.The center of every described acupuncture conductor 5 is the middle part that 100mm is welded on the described horizontal grounding utmost point 4 by the spacing of every adjacent two, and every described acupuncture conductor 5 is all vertical with the described horizontal grounding utmost point 4.The concrete radical of described acupuncture conductor 5 is determined according to the impulse grounding resistance value that reaches of require.
Described empty stomach cylinder 2 is 500mm by upper and lower two parts length, wide is the cylinder shelly steel plate formation of 350mm, two parts cylindrical shell adopts the flange that is threaded to connect, and is used for fixing up and down two parts cylindrical shell, and the empty stomach cylinder outward appearance after assembling is presented the cylinder that bottom surface is cambered surface.Described top divides cylindrical shell shell and 3 welding of described water injection pipe to be linked to be integral body, diameter is that the water injection hole 8 of 15mm is positioned at the long 60mm of being of a side of dividing cylindrical shell apart from described top, wide is the position of 175mm, divide the opposite side of cylindrical shell to be distributed with 10 water seepage holes 6 that diameter is 5mm on described top, be scattered in two rows, spacing between two rows is 60mm, and the spacing at keep to the side a upper row and edge is 50mm.Dividing the even distribution diameter of cylindrical shell shell surrounding on described top is the bolt hole 7 of 10mm, is used for fixing up and down two parts cylindrical shell.The grounding flat steel 9 of described the latter half cylindrical shell and the wide 30mm of being welds and is linked to be integral body, the other end relative with grounding flat steel 9 is evenly distributed with 10 water seepage holes 6 that diameter is 5mm, be scattered in two rows, every row's spacing is 60mm, and the spacing at keep to the side a upper row and edge is 50mm.Dividing the even distribution diameter of cylindrical shell shell surrounding in described bottom is the bolt hole 7 of 10mm, is used for fixing up and down two parts cylindrical shell.With the clay of interior filling 1/3 capacity of described empty stomach cylinder 2, then with its whole hole of putting into, after backfill clay and the compacting of watering, then will fill water in described empty stomach cylinder 2, and weld with described grounding flat steel 9.
A kind of electric power line pole tower reinforced ground diffusing device, with embodiment 1, wherein: the described horizontal grounding utmost point 4 length are 2000mm, the length of every described acupuncture conductor 5 is 200mm, and the center of every described acupuncture conductor 5 is the middle part that 200mm is welded on the described horizontal grounding utmost point 4 by the spacing of every adjacent two.
A kind of electric power line pole tower reinforced ground diffusing device, with embodiment 1, wherein: the described horizontal grounding utmost point 4 length are 1500mm, the length of every described acupuncture conductor 5 is 150mm, and the center of every described acupuncture conductor 5 is the middle part that 150mm is welded on the described horizontal grounding utmost point 4 by the spacing of every adjacent two.
Claims (1)
1. an electric power line pole tower reinforced ground diffusing device, mainly comprise acupuncture earth electrode, empty stomach cylinder, water injection pipe, it is characterized in that:
Described acupuncture earth electrode is made of 1 horizontal grounding utmost point and 2 ~ 10 acupuncture conductors, the described horizontal grounding utmost point and acupuncture conductor are the galvanized steel bar that commercial diameter is 10 ~ 20mm, described horizontal grounding utmost point length is 1000 ~ 2000mm, the length of every described acupuncture conductor is 100 ~ 200mm, the center of every described acupuncture conductor is the middle part that 100 ~ 200mm is welded on the described horizontal grounding utmost point by the spacing of every adjacent two, and every described acupuncture conductor is all extremely vertical with described horizontal grounding; The concrete radical of described acupuncture conductor is determined according to the impulse grounding resistance value that reaches of require;
Described water injection pipe is that diameter is 15mm, and length is about the steel pipe of 300mm, is welded on first cylindrical shell of described empty stomach cylinder;
Described empty stomach cylinder is 500mm by upper and lower two parts length, and wide is the cylinder shelly steel plate formation of 350mm, and two parts cylindrical shell adopts the flange that is threaded to connect, and the empty stomach cylinder outward appearance after assembling is presented the cylinder that bottom surface is cambered surface; Described top divides cylindrical shell shell and the welding of described water injection pipe to be linked to be integral body, diameter is that the water injection hole of 15mm is positioned at the long 60mm of being of a side of dividing cylindrical shell apart from described top, wide is the position of 175mm, divide the opposite side of cylindrical shell to be distributed with 10 water seepage holes that diameter is 5mm on described top, be scattered in two rows, spacing between two rows is 60mm, and the spacing at keep to the side a upper row and edge is 50mm; Dividing the even distribution diameter of cylindrical shell shell surrounding on described top is the bolt hole of 10mm; The grounding flat steel of described the latter half cylindrical shell and the wide 30mm of being welds and is linked to be integral body, the other end relative with grounding flat steel is evenly distributed with 10 water seepage holes that diameter is 5mm, be scattered in two rows, every row's spacing is 60mm, and the spacing at keep to the side a upper row and edge is 50mm; Dividing the even distribution diameter of cylindrical shell shell surrounding in described bottom is the bolt hole of 10mm;
Described acupuncture earth electrode is fixed in the place, four angles of the first half cylindrical shell of described empty stomach cylinder with bolt, the clay of 1/3 capacity will be filled in described empty stomach cylinder, then with the whole hole of putting into of described empty stomach cylinder, after backfill clay and the compacting of watering, to fill water in described empty stomach cylinder again, and weld with described grounding flat steel.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825113A (en) * | 2014-03-17 | 2014-05-28 | 国家电网公司 | Grounding device for high-soil resistivity region |
| CN106229701A (en) * | 2016-08-01 | 2016-12-14 | 国家电网公司华中分部 | A kind of installation method of graphite-based flexible ground body |
| CN106226358A (en) * | 2016-09-08 | 2016-12-14 | 上海市特种设备监督检验技术研究院 | A kind of detector for External Anticorrosion Coating of Buried Steel Pipe and detection method thereof |
| CN109037983A (en) * | 2018-08-24 | 2018-12-18 | 武汉中洋博宇科技发展有限公司 | A kind of collection section formula grounding body |
| CN112821094A (en) * | 2021-01-06 | 2021-05-18 | 广东电网有限责任公司惠州供电局 | Grounding device and method for reducing impact grounding impedance |
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| CN2733631Y (en) * | 2004-11-03 | 2005-10-12 | 孔庆林 | Integrally connecting expandable graphite nonmetal grounding device |
| CN101414711A (en) * | 2008-11-13 | 2009-04-22 | 张远鹏 | Metal grounding module |
| CN203225354U (en) * | 2013-01-31 | 2013-10-02 | 广西电网公司电力科学研究院 | Electric transmission line pole tower reinforced grounding current divergence device |
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2013
- 2013-01-31 CN CN201310038350.2A patent/CN103117459B/en active Active
Patent Citations (4)
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| GR1002738B (en) * | 1996-07-10 | 1997-07-28 | Giorgio Mosti | Earthing electrode for earthing installations |
| CN2733631Y (en) * | 2004-11-03 | 2005-10-12 | 孔庆林 | Integrally connecting expandable graphite nonmetal grounding device |
| CN101414711A (en) * | 2008-11-13 | 2009-04-22 | 张远鹏 | Metal grounding module |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825113A (en) * | 2014-03-17 | 2014-05-28 | 国家电网公司 | Grounding device for high-soil resistivity region |
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| CN106229701A (en) * | 2016-08-01 | 2016-12-14 | 国家电网公司华中分部 | A kind of installation method of graphite-based flexible ground body |
| CN106226358A (en) * | 2016-09-08 | 2016-12-14 | 上海市特种设备监督检验技术研究院 | A kind of detector for External Anticorrosion Coating of Buried Steel Pipe and detection method thereof |
| CN109037983A (en) * | 2018-08-24 | 2018-12-18 | 武汉中洋博宇科技发展有限公司 | A kind of collection section formula grounding body |
| CN112821094A (en) * | 2021-01-06 | 2021-05-18 | 广东电网有限责任公司惠州供电局 | Grounding device and method for reducing impact grounding impedance |
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