CN207602810U - Stray electrical current deep-well drainage structure - Google Patents
Stray electrical current deep-well drainage structure Download PDFInfo
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- CN207602810U CN207602810U CN201721830377.5U CN201721830377U CN207602810U CN 207602810 U CN207602810 U CN 207602810U CN 201721830377 U CN201721830377 U CN 201721830377U CN 207602810 U CN207602810 U CN 207602810U
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Abstract
The utility model is related to a kind of stray electrical current deep-well drainage structures, it is characterised in that：Insulating sleeve is provided in the deep-well, the insulating sleeve lower sides offer several water holes, insulating sleeve lower outside wall is arranged with the filter sheath for preventing mud from entering, drainage grounding body is hung in the deep-well, is electrically connected at the top of the drainage grounding body by conducting wire with the drain means of setting on the ground.Present apparatus drainage grounding body floor space is small, simple in structure.
Description
Technical field
The utility model is related to a kind of stray electrical current deep-well drainage structures.
Background technology
As economic construction of China continues to develop, high-power high voltage AC/DC transmission line, electric railway, city rail
The infrastructure such as traffic and subway engineering increase significantly, a large amount of ac and dc current unordered flowing in soil media so that ground
The problem of lower steel construction is interfered by stray electrical current is more and more common, caused by endanger also increasingly severe, most important one
Harm is to accelerate the corrosion of buried steel construction, and the safe operation of these steel constructions is formed and is greatly threatened.
Steel construction in soil, in order to control its corrosion, the corrosion that generally use coating and cathode protection technology are combined
Control program.The interference of stray electrical current so that the most important control parameter-cathodic protection potential of its cathodic protection system is serious
Deviate the protection domain of relevant criterion defined, post descend the corrosion of steel construction.In order to exclude the interference of stray electrical current, usually
The drainage technology of use.Either AC influence or DC influence, mainly by drainage grounding body by stray electrical current from by
The steel construction of interference is arranged to the earth.The quality of drainage effect, in addition to close with the interference strength and relative position relation of interference source
Mutually outside the Pass, the distance between the ground resistance of drainage grounding body and drainage grounding body and steel construction ontology is depended primarily on.Usual feelings
Under condition, the ground resistance of drainage grounding body is smaller, and drainage effect is better；Distance is more remote between drainage grounding body and steel construction ontology,
Drainage effect is better.
The resistance of drainage grounding body is smaller, and the quantity of grounding body arrangement is more, and the range of installation is bigger；Drainage is grounded
The ontology of body and steel construction is more remote, it is meant that occupies larger range of land used.These are in real work, especially in city incity
Drainage work is unpractical, is difficult to carry out.Moreover, drainage grounding body range is bigger, more remote from steel construction ontology, management is difficult
Degree is also bigger, and destroyed probability is also bigger.
Utility model content
The utility model for the above-mentioned prior art there are the problem of make improvement, i.e., skill to be solved in the utility model
Art problem is to provide a kind of stray electrical current deep-well drainage structure, and drainage grounding body floor space is small, simple in structure, avoids flowing back.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of stray electrical current deep-well drainage structure,
Insulating sleeve is provided in the deep-well, the insulating sleeve lower sides offer several water holes, insulating sleeve lower part
Lateral wall is arranged with the filter sheath for preventing mud from entering, and drainage grounding body, the drainage grounding body top are hung in the deep-well
Portion is by conducting wire with drain means on the ground is set to be electrically connected.
Further, the drainage grounding body is hung vertically in deep-well.
Further, friction reducer is filled in the deep-well.
Further, the insulating sleeve is PVC casings.
Further, the filter sheath is pure cotton cloth set.
Further, the insulating sleeve bottom lock.
Further, the deep-well depth is 30~50m, a diameter of 20~30cm.
Further, the water hole is arranged at 10~15m of deep-well lower part.
Further, the 15~20cm of insulating sleeve.
Compared with prior art, the utility model has the advantages that：There is the present apparatus drainage grounding body to take up an area face
Product is small, if necessary by being packed into friction reducer in well, can effectively control the ground resistance for reducing drainage grounding body, pass through PVC
Casing punch position controls clutter interference electric current leaking into the earth in the deep-well lower part far from steel construction, when making grounding body drainage
The electric field formed avoids the stray electrical current that formed electric field is closely discharged very much from steel construction again far as possible from buried steel construction
Being re-introduced into steel construction causes drainage ineffective.
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Description of the drawings
Fig. 1 is the organigram of the utility model embodiment.
In figure：1- drain means, 2- undergrounds steel construction, 3- insulating sleeves, 31- water holes, 4- filter sheaths, 5- drainages ground connection
Body, 6- conducting wires.
Specific embodiment
Embodiment one：As shown in Figure 1, a kind of stray electrical current deep-well drainage structure, insulating sleeve is provided in the deep-well
3, the insulating sleeve lower sides offer several water holes 31, insulating sleeve lower outside wall be arranged with prevent mud into
The filter sheath 4 entered, is hung with drainage grounding body 5 in the deep-well, by conducting wire 6 and is arranged on ground at the top of the drainage grounding body
Drain means electrical connection on face.
In the present embodiment, the drainage grounding body is hung vertically in deep-well.
In the present embodiment, friction reducer is filled in the deep-well.
In the present embodiment, the insulating sleeve is PVC casings.
In the present embodiment, the filter sheath is pure cotton cloth set.
In the present embodiment, the insulating sleeve bottom lock.
In the present embodiment, the deep-well depth is 30~50m, a diameter of 20~30cm.
In the present embodiment, the water hole is arranged at 10~15m of deep-well lower part.
In the present embodiment, the 15~20cm of insulating sleeve.
It is needing to take near the underground steel construction 2 of drainage measure, is selecting suitable position, a bite depth is beaten using well-digging machinery
Well, the deeper well depth theoretically the better, is advisable deeply at 30-50 meters in Practical Project suggestion, well diameter is in 20~30cm or so, well
The PVC plastic pipe of a diameter of 15-20cm is installed, according to different well depths, is punched in lower part 10-15 meters of section of well, with pure cotton cloth set
Be sleeved on the puncture site of pvc pipe, to stop mud out of aperture access wall, the mud that well-digging is formed in cleaning well to clear water,
It is put into drainage grounding body in well, drainage grounding body can be zinc alloy anode, magnesium alloy anode or aluminum alloy anode, with specific reference to
Water quality is implemented by design requirement in well, for no underground steel construction for implementing cathodic protection, can also select the drainage of steel
Grounding body.The use of friction reducer then selects to use according to the resistance sizes of medium in well.
Drainage grounding body floor space is small, if necessary by being packed into friction reducer in well, can effectively control reduction drainage
The ground resistance of grounding body by PVC casing punch positions, is controlled clutter interference electric current in the deep-well lower part far from steel construction
The earth is leaked into, the electric field formed during grounding body drainage is made to avoid formed electric field from steel far as possible from buried steel construction
The stray electrical current that structure is closely discharged very much is introduced into steel construction and causes drainage ineffective again.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the claims it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model.
Claims (9)
1. a kind of stray electrical current deep-well drainage structure, it is characterised in that：Insulating sleeve, the insulation sleeve are provided in the deep-well
Pipe lower sides offer several water holes, and insulating sleeve lower outside wall is arranged with the filter sheath for preventing mud from entering, institute
It states and drainage grounding body is hung in deep-well, pass through drain means electricity of the conducting wire with setting on the ground at the top of the drainage grounding body
Connection.
2. stray electrical current deep-well drainage structure according to claim 1, it is characterised in that：The drainage grounding body vertically hangs
It hangs in deep-well.
3. stray electrical current deep-well drainage structure according to claim 1, it is characterised in that：Filled with drop resistance in the deep-well
Agent.
4. stray electrical current deep-well drainage structure according to claim 1, it is characterised in that：The insulating sleeve is covered for PVC
Pipe.
5. stray electrical current deep-well drainage structure according to claim 1, it is characterised in that：The filter sheath is pure cotton cloth
Set.
6. stray electrical current deep-well drainage structure according to claim 1, it is characterised in that：The insulating sleeve bottom envelope
It closes.
7. stray electrical current deep-well drainage structure according to claim 1, it is characterised in that：The deep-well depth for 30~
50m, a diameter of 20~30cm.
8. stray electrical current deep-well drainage structure according to claim 7, it is characterised in that：The water hole is arranged on deep-well
At 10~15m of lower part.
9. stray electrical current deep-well drainage structure according to claim 7, it is characterised in that：The insulating sleeve 15~
20cm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830377.5U CN207602810U (en) | 2017-12-25 | 2017-12-25 | Stray electrical current deep-well drainage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721830377.5U CN207602810U (en) | 2017-12-25 | 2017-12-25 | Stray electrical current deep-well drainage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207602810U true CN207602810U (en) | 2018-07-10 |
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ID=62766010
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721830377.5U Active CN207602810U (en) | 2017-12-25 | 2017-12-25 | Stray electrical current deep-well drainage structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103621A (en) * | 2018-08-24 | 2018-12-28 | 国网湖南省电力有限公司 | A kind of extra-high voltage direct-current transmission deep well grounding electrode |
| CN109546366A (en) * | 2018-10-29 | 2019-03-29 | 中国能源建设集团广东省电力设计研究院有限公司 | The upper end insulation structure of deep-well type earthing pole |
| CN109546365A (en) * | 2018-10-29 | 2019-03-29 | 中国能源建设集团广东省电力设计研究院有限公司 | The well head of deep-well type earthing pole |
-
2017
- 2017-12-25 CN CN201721830377.5U patent/CN207602810U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103621A (en) * | 2018-08-24 | 2018-12-28 | 国网湖南省电力有限公司 | A kind of extra-high voltage direct-current transmission deep well grounding electrode |
| CN109546366A (en) * | 2018-10-29 | 2019-03-29 | 中国能源建设集团广东省电力设计研究院有限公司 | The upper end insulation structure of deep-well type earthing pole |
| CN109546365A (en) * | 2018-10-29 | 2019-03-29 | 中国能源建设集团广东省电力设计研究院有限公司 | The well head of deep-well type earthing pole |
| CN109546365B (en) * | 2018-10-29 | 2020-09-29 | 中国能源建设集团广东省电力设计研究院有限公司 | Well head of deep well type earthing pole |
| CN109546366B (en) * | 2018-10-29 | 2020-10-30 | 中国能源建设集团广东省电力设计研究院有限公司 | Upper end insulation structure of deep well type grounding electrode |
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