CN2665952Y - Anticorrosive grounding apparatus - Google Patents
Anticorrosive grounding apparatus Download PDFInfo
- Publication number
- CN2665952Y CN2665952Y CN 03214327 CN03214327U CN2665952Y CN 2665952 Y CN2665952 Y CN 2665952Y CN 03214327 CN03214327 CN 03214327 CN 03214327 U CN03214327 U CN 03214327U CN 2665952 Y CN2665952 Y CN 2665952Y
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- CN
- China
- Prior art keywords
- utility
- model
- bentonite clay
- earthing
- earthing body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides an antisepsis earthing device, solving the technical problems of high cost, short service life, being easy to be aging and perishable and the needs of regular renewal of the existing technology. The utility model consists of an earthing body, and the utility model is characterized in that the bentonite clay that is in a wet status is arranged around the earthing body. The utility model has the advantages that: (1) low cost; the bentonite clay is a natural ore relatively which is wider in distribution and low in cost, is easy to be gained; (2) the bentonite clay can be used for wrapping steels with the advantages of no aging, no metamorphism and long service life; (3) the bentonite clay has good moisture retention when being used for wrapping the earthing body, which cuts off the contact between the corrosion substance and the earthing body; (4) the bentonite clay further has the effect of reducing contact resistance between the earthing body and the soil when being used for wrapping the earthing body. The utility model is easy and convenient in use with wide social and economic benefits.
Description
Technical field
The utility model relates to the technical field of earthing device, especially anti-corrosion grounding device.
Background technology
Current, power plant, transformer station all will bury earthing device underground, and its metal earth electrode is needs electric current and high pressure fault current will be imported in the earth, and all anticorrosion ways all should have conducting function.When burying earthing device underground in having corrosive ground, prevent that the problem of earth electrode corrosion is exactly a general difficult problem, prior art is as follows:
1, earth electrode is generally metal, is generally round steel, band steel; Preservative treatment such as zinc-plated, brush corrosion resistant coating, but the antiseptic earth electrode of this process generally will be eroded again through 4～5 years.
2, adopt copper covered steel or be used as earth electrode with copper, this earth electrode cost is higher, at Chinese large-sized transformer station, the general total length of station grounding body is 3000～6000 meters long, the cross section can not be less than 150mm2, if use this earth electrode, its cost is very high so, so up to the present at China's also less employing copper earth electrode.
3, negative electrode or anodic protection add a DC power supply exactly on earth electrode, because electrochemical principle only corrodes anode, come the protective earthing body with this.This technical operation cost is higher, often change the anode that is corroded, and external dc power supply also will regularly replace.
4, ground network, its effect is: reduce earth resistance; Equalizing lattice; Guarantee operation maintenance personnel and device security; When the Power System Shortcuts accident takes place when, as single-phase earthing, line to line fault ground connection, earth potential can be very high, produces step voltage entail dangers to personal safety.And after being corroded, need change, workload is very large.
5, earth electrode design buried depth is 0.8 meter usually
The utility model content
Technical problem to be solved in the utility model provides a kind of anti-corrosion grounding device, and it has solved tradition and has been used for short, the easy aged deterioration of aseptic technic cost height, service life of earth electrode, the problem that needs often upgrade.
In order to solve the problems of the technologies described above, the utility model is achieved in that it comprises earth electrode 2, it is characterized in that earth electrode 2 around be provided with bentonite 1.
Described bentonite 1 is a moisture state.
The utility model has the advantages that:
1, cost is low, and bentonite is natural a kind of ore deposit, and distributed more widely, and cost is low, is easy to obtain.
2, bentonite parcel steel have and do not wear out, never degenerate, the advantage that service time is long.
3, bentonite wet condition parcel earth electrode has good moisture preserving, has cut off contacting of corrosive deposit and earth electrode.
4, bentonite parcel earth electrode also has the effect that reduces earth electrode and soil contact resistance.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model embodiment 2.
Among the figure: 1. bentonite, 2. earth electrode, 3. ground level, 4. back fill course.
Embodiment
As shown in Figure 1:
1, bury the place of earth electrode 2 at specified level underground, dig one dark 0.95 meter, wide is 0.3 meter ditch.
2, in ditch, earth electrode 2 is propped 0.15 meter.
3, cast bentonite 1 in ditch makes with earth electrode 2 to be the center of circle, and bentonite 1 diameter of periphery parcel is 300 millimeters.
4, Jiao Zhu bentonite 1 technical parameter is 100 colloid indexs, and 200 orders, the coefficient of expansion are 1: 10.
5, backfill soil, promptly back fill course 4.
This earthing device must be installed at the scene that earth electrode 2 is laid, and parcel earth electrode 2 well can not be transported to the infield of earth electrode 2.
As shown in Figure 2, dig and establish deep hole, promptly bury the place underground and vertically bury earth electrode 2 underground in appointment.The diameter of deep hole is 100～300mm, and dark 10～40m is at earth electrode 2 peripheries cast bentonite 1.
Claims (2)
1, anti-corrosion grounding device, it comprises earth electrode (2), it is characterized in that earth electrode (2) around be provided with bentonite (1).
2, anti-corrosion grounding device according to claim 1 is characterized in that described bentonite (1) is a moisture state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03214327 CN2665952Y (en) | 2003-08-14 | 2003-08-14 | Anticorrosive grounding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03214327 CN2665952Y (en) | 2003-08-14 | 2003-08-14 | Anticorrosive grounding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665952Y true CN2665952Y (en) | 2004-12-22 |
Family
ID=34325718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03214327 Expired - Fee Related CN2665952Y (en) | 2003-08-14 | 2003-08-14 | Anticorrosive grounding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665952Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104844133A (en) * | 2015-05-04 | 2015-08-19 | 国家电网公司 | Anticorrosive coating packing of grounding down lead |
-
2003
- 2003-08-14 CN CN 03214327 patent/CN2665952Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104844133A (en) * | 2015-05-04 | 2015-08-19 | 国家电网公司 | Anticorrosive coating packing of grounding down lead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |