CN206712045U - Open web type grounding body - Google Patents
Open web type grounding body Download PDFInfo
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- CN206712045U CN206712045U CN201720513261.2U CN201720513261U CN206712045U CN 206712045 U CN206712045 U CN 206712045U CN 201720513261 U CN201720513261 U CN 201720513261U CN 206712045 U CN206712045 U CN 206712045U
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- grounding body
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Abstract
The utility model is related to electrical engineering technical field, disclose a kind of open web type grounding body, with improve that soil resistivity is higher or the land area relatively narrower environment of earth work under grounding resistance.Open web type grounding body includes disclosed in the utility model：The steel cylinder assembled by two steel semicircular cylinders, the steel cylinder is provided with top cover, top is natural water filling region, and under-filled to have water-absorbing-retaining material, the upper and lower part of each semicircular cylinder offers water seepage hole respectively；And each steel semicircular cylinder is respectively equipped with the connecting lead wire being connected with steel tower grounded screen to form ground link double loop, the top cover is exposed in the upper end of the lead, and bottom is embedded in the clay in ground connection hole.
Description
Technical field
It the utility model is related to electrical engineering technical field, more particularly to a kind of open web type grounding body.
Background technology
The safe and stable operation that electric power line pole tower is grounded to power system is most important.According to operating statistic MSDS
It is bright, caused by tower grounding is bad lightening hazard account for line fault ratio it is at a relatively high, this mainly due to thunderbolt bar
When top and lightning conducter, lightning current enters ground by tower grounding device, and higher counterattack voltage institute is generated because grounding resistance is high
Cause.Particularly regulatory requirements are extremely difficult in the higher mountain area of soil resistivity, powerline pole tower ground resistance.
Utility model content
The utility model purpose is to disclose a kind of open web type grounding body, and to improve, soil resistivity is higher or earth work
Land area relatively narrower environment under grounding resistance.
To achieve the above object, the utility model discloses a kind of open web type grounding body, including：
The steel cylinder assembled by two steel semicircular cylinders, the steel cylinder are provided with top cover, and top is natural water
Filling region, under-filled to have water-absorbing-retaining material, the upper and lower part of each semicircular cylinder offers water seepage hole respectively；And
Each steel semicircular cylinder is respectively equipped with the connecting lead wire that is connected with steel tower grounded screen to form ground link double back
The top cover is exposed in road, the upper end of the lead, and bottom is embedded in the clay in ground connection hole.
Optionally, two steel semicircular cylinders interfix through flange and bolt；Above-mentioned water-absorbing-retaining material can be sponge and
Clay.
In the utility model, clay is filled between open web type grounding body and ground connection hole, and open web type grounding body all buries
Center that is interior and being deployed in ground connection hole is cheated located at ground connection.Preferably, top cover also offers water seepage hole.
Further, open web type grounding body of the present utility model is also connected structure as vertical grounding electrode with horizontal grounding device
Into combined grounding device.
The utility model has the advantages that：
1), by backfilling clay and the compacting that soil resistivity is low, soil property is fine and closely woven around grounding body, can greatly reduce
The contact resistance of grounding body and the soil of surrounding, so as to reduce grounding resistance.
2), by the clay of backfill low-resistivity in being cheated in ground connection, equivalent to the size of increase grounding body, grounding resistance is made
It is significant to reduce.
3) soil conservation around grounding body can, moistened, so as to reduce soil resistivity, reduces grounding resistance.
Below with reference to accompanying drawings, the utility model is described in further detail.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing further understanding to of the present utility model, of the present utility model
Schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.In accompanying drawing
In：
Fig. 1 is the structural representation of the open web type grounding body of the utility model preferred embodiment.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
Embodiment 1
The present embodiment discloses a kind of open web type grounding body, as shown in figure 1, including：
The steel cylinder assembled by two steel semicircular cylinders 1, the steel cylinder are provided with top cover 4, and top is natural
Water filling region B, bottom A are filled with water-absorbing-retaining material, and the upper and lower part of each semicircular cylinder offers water seepage hole respectively
0；And each steel semicircular cylinder is respectively equipped with the connecting lead wire being connected with steel tower grounded screen to form ground link double loop,
The top cover is exposed in the upper end 5 of the lead, and bottom 2 is embedded in the clay in ground connection hole 6.Optionally, two steel semicircles
Cylinder interfixes through flange and bolt 3；Above-mentioned water-absorbing-retaining material can be sponge and clay.
In the present embodiment, clay is filled between open web type grounding body and ground connection hole, and open web type grounding body is all embedded
Center that is interior and being deployed in ground connection hole is cheated in ground connection.As shown in figure 1, the mixing that A is water-absorbing-retaining material and natural water in cylinder is filled out
Fill region；B is the filling waters of natural water in cylinder；C is cylinder surrounding low-resistivity clay backfilling region, and D is ground surface area
Domain, backfill general soil.
Preferably, the top cover of the present embodiment also offers water seepage hole.
Further, open web type grounding body of the present utility model is also connected structure as vertical grounding electrode with horizontal grounding device
Into combined grounding device.
Said structure based on the present embodiment, during installation, clay is backfilled in ground connection hole (region C, D i.e. in figure) first
About thick 400mm, and tamp.Two steel semicircular cylinders are bolted together, are assembled into a storing water, infiltration and water suction
Cylindrical shape earth conductor (hereinafter referred to as grounding body).Grounding body is put in ground connection hole center, its surrounding backfill clay is simultaneously tamped.
After grounding body is wholly embedded into clay, then from circular hole at the top of grounding body, absorbent material is filled into grounding body, and fill day
Right water.Meanwhile the appropriate water filling into grounding body surrounding soil, it is allowed to moisten.Finally, top cover is covered, then on grounding body
Backfill clay is simultaneously tamped.Due to water storage, infiltration and the water sorption of absorbent material in cylinder and cylinder, the water in cylinder is set slowly to ooze
Go out, the moistening of grounding body surface and its surrounding soil can be kept for a long time.When rainy season surrounding soil water content is abundant, absorbed water in cylinder
Material can adsorb a large amount of moisture content in soil outside cylinder into storing in cylinder, meanwhile, it is small that the water soaked under ground surface also passes through top cover
Hole is leaked into cylinder, forms the process for adding water naturally to cylinder.Then, cylinder is become for a resource of water supply, to keep connecing
The long-term moistening of ground body surface face and its surrounding soil provides guarantee.Finally, grounding body is respectively by two connecting lead wires, with water
Flush earth mat or other ground leads are connected, form reliable ground link double loop.
The utility model has the advantages that：
1), by backfilling clay and the compacting that soil resistivity is low, soil property is fine and closely woven around grounding body, can greatly reduce
The contact resistance of grounding body and the soil of surrounding, so as to reduce grounding resistance.
The grounding resistance of grounding body mainly includes two parts：The diffusing electricity of electric current soil suffered when being scattered in the earth
Resistance；Existing contact resistance between grounding body and the soil of surrounding.
Contact resistance is due to the soil loose contact of grounding body and surrounding and caused.Loose contact has the original of several respects
Cause：One is due to that soil is granular, the naturally occurring space on it and the contact surface of grounding body so that contact resistance in itself
Increase；First, relevant with the smoothness on grounding body surface, when the rough surface of grounding body, its contact condition with soil by
Influence, cause the increase of contact resistance；In addition, after time when earthing pole in soil is longer, can be produced on grounding body surface
The pig iron becomes rusty, because iron rust is semiconductor so that contact resistance becomes big, and this phenomenon is particularly evident in land waste soil.
By the analysis of the producing cause to contact resistance, contact resistance is reduced it is necessary to improve grounding body and soil
The contact condition of earth and prevent grounding body from getting rusty.
Open web type earthing or grounding means is in order to improve the contact condition of grounding body and surrounding soil, it is desirable to is backfilling into the soil in ground connection hole
Earth is the fine and closely woven fine earth of soil property, clay, and can not use the backfill such as sandstone and building waste, over time, backfill
Can be more and more closely knit.Due to open web type earthing or grounding means can multiple water filling, even in arid area, device can also be made to protect for a long time
Hold moistening.On the one hand the clay of backfill is in close contact after water suction with grounding body, while also enhance the contact between soil,
Substantially eliminate contact resistance.
In order to prevent grounding body from can produce iron rust after a long time use, the ground connection dress body of the present embodiment can further led
The surface of body carries out zinc-plated processing, improves resistance to corrosion, and grounding body will not produce corrosion in a long time, therefore drop resistance effect
Fruit can be kept for the long period.Through Practice Survey earthing or grounding means service life length.
2), by the clay of backfill low-resistivity in being cheated in ground connection, equivalent to the size of increase grounding body, grounding resistance is made
It is significant to reduce.
When installing open web type grounding body, in the appropriate sponge of the intraperitoneal filling of grounding body and clay, then by grounding body
Ground connection hole is put into, and after backfilling clay watering compacting, then water will be filled in grounding body.Water in grounding body passes through grounding body
Aperture is slowly immersed into soil, except the exposure level that can promote grounding body surface with replace soil, reduces contact resistance,
The moistening of argillic horizon and surrounding soil can be kept simultaneously.Because what is added is Natural Water, itself has quite containing abundant ion
Small resistivity, therefore after irrigating enough Natural Water, the resistivity of surrounding environment soil can be greatly reduced.And by
It is usually the smaller soil of the pore diameters such as clay in backfill, the water penetration of this kind of soil is very poor, and the water in hole is not allowed
Easily flowing so that the water of perfusion can keep longer time to make the soil remained moist of environment in grounding body.
3) soil conservation around grounding body can, moistened, so as to reduce soil resistivity, reduces grounding resistance
The low soil of backfill resistivity is cheated by artificial earthing, improves the soil resistivity near earthing or grounding means, Ke Yiyou
The grounding resistance of the reduction grounding body of effect.Resistivity of the soil resistivity well below native soil of backfill is primarily due to,
Its spreading resistance is more much smaller than the soil being replaced, equivalent to the size for increasing earthing pole to a certain extent, so playing
Reduce the effect of grounding resistance.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (6)
- A kind of 1. open web type grounding body, it is characterised in that including：The steel cylinder assembled by two steel semicircular cylinders, the steel cylinder are provided with top cover, and top is filled for natural water Region, under-filled to have water-absorbing-retaining material, the upper and lower part of each semicircular cylinder offers water seepage hole respectively；AndEach steel semicircular cylinder is respectively equipped with the connecting lead wire that is connected with steel tower grounded screen to form ground link double loop, institute The top cover is exposed in the upper end for stating lead, and bottom is embedded in the clay in ground connection hole.
- 2. open web type grounding body according to claim 1, it is characterised in that two steel semicircular cylinders are through flange and bolt phase It is mutually fixed.
- 3. open web type grounding body according to claim 1 or 2, it is characterised in that the water-absorbing-retaining material be sponge and Clay.
- 4. the open web type grounding body according to the claim 3, it is characterised in that open web type grounding body is cheated with the ground connection Between be filled with clay, and the open web type grounding body is all embedded in the ground connection hole and is deployed in the ground connection hole Centre.
- 5. open web type grounding body according to claim 4, it is characterised in that the top cover also offers water seepage hole.
- 6. open web type grounding body according to claim 5, it is characterised in that the open web type grounding body is as vertical ground connection Pole is also connected with horizontal grounding device forms combined grounding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513261.2U CN206712045U (en) | 2017-05-09 | 2017-05-09 | Open web type grounding body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720513261.2U CN206712045U (en) | 2017-05-09 | 2017-05-09 | Open web type grounding body |
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| Publication Number | Publication Date |
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| CN206712045U true CN206712045U (en) | 2017-12-05 |
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| CN201720513261.2U Active CN206712045U (en) | 2017-05-09 | 2017-05-09 | Open web type grounding body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332123A (en) * | 2020-11-05 | 2021-02-05 | 四川华能宝兴河水电有限责任公司 | Hydropower station layered soil grounding resistance reduction method |
-
2017
- 2017-05-09 CN CN201720513261.2U patent/CN206712045U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332123A (en) * | 2020-11-05 | 2021-02-05 | 四川华能宝兴河水电有限责任公司 | Hydropower station layered soil grounding resistance reduction method |
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