CN202523855U - Grounding body for reducing grounding resistance of wind driven generator - Google Patents
Grounding body for reducing grounding resistance of wind driven generator Download PDFInfo
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- CN202523855U CN202523855U CN2012200993487U CN201220099348U CN202523855U CN 202523855 U CN202523855 U CN 202523855U CN 2012200993487 U CN2012200993487 U CN 2012200993487U CN 201220099348 U CN201220099348 U CN 201220099348U CN 202523855 U CN202523855 U CN 202523855U
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- reinforcement cage
- steel reinforcement
- driven generator
- grounding
- ground connection
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Abstract
The utility model relates to a grounding body for reducing grounding resistance of a wind driven generator and belongs to an electric power grounding device. The grounding body for reducing grounding resistance of the wind driven generator is characterized by comprising a grounding electrode plate, transverse bars, a steel reinforcement cage and a concrete column, wherein the concrete column is a cylinder and made by casting castable which is made by mixing cement, scrap iron or iron fiber and graphite powder, a framework which is made by welding the grounding electrode plate, the transverse bars and the steel reinforcement cage is embedded in the concrete column, the steel reinforcement cage is in the grid type cylinder-shaped structure, a center of the steel reinforcement cage is arranged with the grounding electrode plate in a vertical direction, an upper end section of the grounding electrode plate extends out from the steel reinforcement cage, the transverse bars are welded with equal intervals on the grounding electrode plate from a lower portion to an upper portion, and both ends of each of the transverse bars are correspondingly welded with the steel reinforcement cage into an integrated body. When the grounding body is used, the grounding body is inserted into a foundation pit in a vertical direction, and a grounding main line is welded on the extension end section of the grounding electrode plate, and then the foundation pit is filled with backfill earth which has great electrical conductivity. The grounding body is safe in use and effectively reduces reducing grounding resistance of the wind driven generator.
Description
Technical field
The utility model belongs to device power ground, especially relates to a kind of earthing device of wind-driven generator.
Background technology
For making wind-driven generator exempt from the infringement of thunderbolt; The earth resistance of wind-driven generator is reached≤designing requirement of 4 Ω; But at high soil resistivity (soil resistivity ρ>=2000 Ω .m); The wind-driven generator earth resistance is difficult to reach designing requirement, need take to fall the resistance measure, and traditional resistance method of falling has: the interconnected one-tenth ground network of many typhoons machine, soil removal and replacement, outward draw ground network, use chemical resistance-reducing agent and adopt earthing module etc.; But always there are some drawbacks in these methods, perhaps can pollute soil property, and biological environment is damaged, and perhaps take large-area soil, and perhaps resistance reducing effect and not obvious, unstable has not only increased quantities, and strengthened construction cost.
Summary of the invention
The purpose of the utility model is to propose a kind of earth electrode that reduces the wind-driven generator earth resistance; Not only rational in infrastructure, safe and reliable, reduce the earth resistance of wind-driven generator effectively; The wind-driven generator earth resistance is reached≤designing requirement of 4 Ω, help biological environment again.
The purpose of the utility model realizes like this: a kind of earth electrode that reduces the wind-driven generator earth resistance, (hereinafter to be referred as: earth electrode), it is characterized in that: the earth electrode of this reduction wind-driven generator earth resistance mainly is made up of ground connection pole plate, horizontal bar, steel reinforcement cage and concrete cylinder; This concrete cylinder is cylinder; Diameter is 400-450mm, the high 1.5-2.0m of being, the pouring material that this concrete cylinder is mainly formed by cement, iron filings or iron fiber and graphite powder stirring is built and formed, and in this concrete cylinder, buries the skeleton that is mainly formed by ground connection pole plate, horizontal bar and steel reinforcement cage assembly welding underground; This steel reinforcement cage is the cylindrical cage of grid type; Its length is consistent with the length of concrete cylinder, but the overall diameter of this steel reinforcement cage is less than the diameter of concrete cylinder, and the overall diameter of this steel reinforcement cage can be 300-350mm; This steel reinforcement cage can be that the round steel simmering and bending weldering system of 8-10mm forms by diameter; To the ground connection pole plate is set, and make that the upper end section of this ground connection pole plate is overhanging to go out steel reinforcement cage in the central vertical of this steel reinforcement cage, the upper end section of this ground connection pole plate is overhanging to be gone out steel reinforcement cage and can be 200-250mm; This ground connection pole plate available angle steel is processed; The angle steel of outstanding available 63 * 63 * 6mm of this ground connection pole plate is processed, and on this ground connection pole plate, is uniformly distributed with the welding horizontal bar from the bottom to top, and is good on this ground connection pole plate, to be uniformly distributed with welding three road horizontal bars from the bottom to top; The two ends of each horizontal bar are all corresponding mutually integrally welded with steel reinforcement cage, and this horizontal bar can be the round steel that diameter is 8-10mm.
During on-the-spot the use, earlier this earth electrode of excavation bury foundation ditch underground, the degree of depth of this foundation ditch should vertically be inserted this earth electrode in the foundation ditch earlier than the big 0.8～1m of height of the concrete cylinder of this earth electrode; Weld horizontal ground connection main line on the overhanging end section of ground connection pole plate again, this horizontal grounding main line adopts zinc-coated flat steel sheet, and is also buried at underground 0.8～1m place, after the welding; Remove welding slag, pad all adopts asphalt caulk to carry out preservative treatment, then the backfill foundation ditch; Make this earth electrode be embedded in below ground, in backfill soil, mix electric conductivity filler preferably, like Iron Ore Powder, iron ore slag, charcoal; Ashes, carbide slag and nitrogenous fertilizer slag etc. all can, to improve the conductance of this earth electrode surrounding soil.
The earth electrode of the reduction wind-driven generator earth resistance that the utility model proposed; Greatly strengthened electric conductivity, reduced the earth resistance of wind-driven generator effectively, the earth resistance of wind-driven generator has been reached≤designing requirement of 4 Ω; Secondly this earth electrode is buried in soil; Can not influence its resistance reducing effect because of rainwater runs off, so the earth resistance value stabilization of wind-driven generator, pollution-free to peripheral soil simultaneously.
Combine accompanying drawing and embodiment that the earth electrode of the reduction wind-driven generator earth resistance that the utility model proposed is described further at present.
Description of drawings
Fig. 1 is the main cross-sectional schematic of the earth electrode of the reduction wind-driven generator earth resistance that proposes of the utility model.
Among Fig. 1: 1, ground connection pole plate 2, concrete cylinder 3, steel reinforcement cage 4, horizontal grounding main line 5, horizontal bar.
Embodiment
As can be seen from Figure 1: a kind of earth electrode that reduces the wind-driven generator earth resistance, (hereinafter to be referred as: earth electrode), it is characterized in that: the earth electrode of this reduction wind-driven generator earth resistance mainly is made up of ground connection pole plate 1, horizontal bar 5, steel reinforcement cage 3 and concrete cylinder 2; This concrete cylinder 2 is cylinder; Diameter is 400-450mm, the high 1.5-2.0m of being, pouring materials that this concrete cylinder 2 is mainly formed by cement, iron filings or iron fiber and graphite powder stirring are built and formed, and in this concrete cylinder 2, bury the skeleton that is mainly formed by ground connection pole plate 1, horizontal bar 5 and steel reinforcement cage 3 assembly weldings underground; This steel reinforcement cage 3 is the cylindrical cage of grid type; Its length is consistent with the length of concrete cylinder 2, but the overall diameter of this steel reinforcement cage 3 is less than the diameter of concrete cylinder 2, and the overall diameter of steel reinforcement cage 3 is 300-350mm; This steel reinforcement cage 3 can be that the round steel simmering and bending weldering system of 8-10mm forms by diameter; To ground connection pole plate 1 is set, and make that the upper end section of this ground connection pole plate 1 is overhanging to go out steel reinforcement cage 3 in the central vertical of this steel reinforcement cage 3, the upper end section of this ground connection pole plate 1 is overhanging to be gone out steel reinforcement cage 3 and can be 200-250mm; This ground connection pole plate 1 available angle steel is processed; The angle steel of this ground connection pole plate 1 outstanding available 63 * 63 * 6mm is processed, and on this ground connection pole plate 1, is uniformly distributed with welding horizontal bar 5 from the bottom to top, and on this ground connection pole plate 1, to be uniformly distributed with welding three road horizontal bars 5 from the bottom to top for good; The two ends of each horizontal bar 5 are all corresponding mutually integrally welded with steel reinforcement cage 3, and this horizontal bar 5 can be the round steel that diameter is 8-10mm.
During on-the-spot the use, earlier this earth electrode of excavation bury foundation ditch underground, this foundation depth should be than the big 0.8～1m of height of the concrete cylinder 2 of this earth electrode; Earlier this earth electrode is vertically inserted in the foundation ditch, weld horizontal ground connection main line 4 on the overhanging end section of ground connection pole plate 1 again, this horizontal grounding main line 4 adopts zinc-coated flat steel sheets; Also buried at underground 0.8～1m place, after the welding, remove welding slag; Pad all adopts asphalt caulk to carry out preservative treatment, and the backfill foundation ditch makes this earth electrode be embedded in below ground then; In backfill soil, mix electric conductivity filler preferably, like Iron Ore Powder, iron ore slag, charcoal, ashes; Carbide slag and nitrogenous fertilizer slag etc. all can, to improve the conductance of this earth electrode surrounding soil.
Claims (8)
1. earth electrode that reduces the wind-driven generator earth resistance; It is characterized in that: the earth electrode of this reduction wind-driven generator earth resistance mainly is made up of ground connection pole plate (1), horizontal bar (5), steel reinforcement cage (3) and concrete cylinder (2); This concrete cylinder (2) is cylinder; The diameter of this concrete cylinder (2) is 400-450mm, the high 1.5-2.0m of being; The pouring material that this concrete cylinder (2) is mainly formed by cement, iron filings or iron fiber and graphite powder stirring is built and is formed, and in this concrete cylinder (2), buries the skeleton that is mainly formed by ground connection pole plate (1), horizontal bar (5) and steel reinforcement cage (3) assembly welding underground, and this steel reinforcement cage (3) is the cylindrical cage of grid type; Its height is consistent with the height of concrete cylinder (2); But the overall diameter of this steel reinforcement cage (3) is less than the diameter of concrete cylinder (2), to ground connection pole plate (1) is set, and makes that the upper end section of this ground connection pole plate (1) is overhanging to go out steel reinforcement cage (3) in the central vertical of this steel reinforcement cage (3); On this ground connection pole plate (1), be uniformly distributed with welding horizontal bar (5) from the bottom to top, the two ends of each horizontal bar (5) are all corresponding mutually integrally welded with steel reinforcement cage (3).
2. the earth electrode of reduction wind-driven generator earth resistance according to claim 1 is characterized in that
The overall diameter of this steel reinforcement cage (3) is 300-350mm.
3. the earth electrode of reduction wind-driven generator earth resistance according to claim 1 is characterized in that this steel reinforcement cage (3) is that the round steel simmering and bending weldering system of 8-10mm forms by diameter.
4. the earth electrode of reduction wind-driven generator earth resistance according to claim 1 is characterized in that overhanging steel reinforcement cage (3) 200-250mm of going out of upper end section of this ground connection pole plate (1).
5. the earth electrode of reduction wind-driven generator earth resistance according to claim 1 is characterized in that this ground connection pole plate (1) processes with angle steel.
6. the earth electrode of reduction wind-driven generator earth resistance according to claim 1 is characterized in that
On ground connection pole plate (1), be uniformly distributed with welding three road horizontal bars (5) from the bottom to top.
7. the earth electrode of reduction wind-driven generator earth resistance according to claim 1 is characterized in that this horizontal bar (5) is the round steel of 8-10mm for diameter.
8. the earth electrode of reduction wind-driven generator earth resistance according to claim 5 is characterized in that this ground connection pole plate (1) processes with the angle steel of 63 * 63 * 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200993487U CN202523855U (en) | 2012-03-16 | 2012-03-16 | Grounding body for reducing grounding resistance of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200993487U CN202523855U (en) | 2012-03-16 | 2012-03-16 | Grounding body for reducing grounding resistance of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202523855U true CN202523855U (en) | 2012-11-07 |
Family
ID=47106786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200993487U Expired - Lifetime CN202523855U (en) | 2012-03-16 | 2012-03-16 | Grounding body for reducing grounding resistance of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202523855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258583A (en) * | 2013-05-13 | 2013-08-21 | 国家电网公司 | Resistance reducing material and application of iron ore in grounding grid upgrading as resistance reducing material |
| CN106170529A (en) * | 2014-03-21 | 2016-11-30 | C·J·坦普尔顿 | The improvement of buried cable transmission |
-
2012
- 2012-03-16 CN CN2012200993487U patent/CN202523855U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103258583A (en) * | 2013-05-13 | 2013-08-21 | 国家电网公司 | Resistance reducing material and application of iron ore in grounding grid upgrading as resistance reducing material |
| CN106170529A (en) * | 2014-03-21 | 2016-11-30 | C·J·坦普尔顿 | The improvement of buried cable transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121107 |