CN211507930U - Device for reducing corrosion of grounding device of power transmission line tower near pole site - Google Patents
Device for reducing corrosion of grounding device of power transmission line tower near pole site Download PDFInfo
- Publication number
- CN211507930U CN211507930U CN202020476430.1U CN202020476430U CN211507930U CN 211507930 U CN211507930 U CN 211507930U CN 202020476430 U CN202020476430 U CN 202020476430U CN 211507930 U CN211507930 U CN 211507930U
- Authority
- CN
- China
- Prior art keywords
- horizontal
- grounding
- tower
- corrosion
- transmission line
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a device for reducing the corrosion of a transmission line tower grounding device near an electrode site, which comprises a horizontal grounding frame, four horizontal rays, four end circular rings and a coke layer, wherein the horizontal grounding frame is arranged around tower feet, and the horizontal grounding frame is electrically connected with a plurality of tower feet; four horizontal rays are uniformly distributed around the horizontal grounding frame and are diffused outwards; one end of each horizontal ray is connected with the horizontal grounding frame; the other end of each horizontal ray is connected with an end part circular ring; the coke layer is wrapped on the horizontal grounding frame, the horizontal ray and the end ring. In the utility model, the horizontal grounding frame, the horizontal ray and the end circular ring are all made of corrosion-resistant grounding metal materials, and the connection between the horizontal grounding frame, the horizontal ray and the end circular ring adopts heat release welding, thus ensuring the reliable electrical connection of the grounding device; coke is uniformly wrapped around the horizontal grounding frame, the horizontal ray and the end circular ring, so that the direct current corrosion resistance of the grounding device is effectively enhanced.
Description
Technical Field
The utility model belongs to the technical field of the ground connection anticorrosion, concretely relates to a device for reducing near transmission line shaft tower earthing device of polar address corrodes.
Background
When the direct current transmission system adopts a monopole-earth operation mode in the initial construction stage or adopts the operation mode due to failure or maintenance in the operation in the future, the direct current grounding electrode is used as a return channel of working current, and when the working current or unbalanced current flows through the direct current grounding electrode through the earth, not only the grounding electrode per se can be corroded, but also the corrosion influence can be generated on underground metal components around the grounding electrode. This is because the ground potential rise caused by the ground electrode current causes a potential difference between different points around the ground electrode, and this potential difference causes a current to flow in the metal members buried in the ground, which causes corrosion of the metal members in the ground and on the ground, and the corrosion is more significantly affected by the metal members having a large length and a short distance from the ground electrode. The direct current flowing into the grounding body of the power transmission line tower is gradually reduced along with the increase of the distance of the grounding device of the power transmission line.
The corrosion thickness of the horizontal ray of the grounding device of the transmission line tower along the line is increased from the head end to the tail end, the amplification is large at the tail end, and the corrosion thickness of the tail end is 3-5 times of that of the head end under the common condition, so that the corrosion resistance of a metal material at the end part of the horizontal ray is mainly considered, the service life of the grounding device of the transmission line tower near a direct current grounding electrode address is prolonged, and the lightning trip-out rate of the transmission line tower is reduced.
In order to solve the problems, the inventor develops a device for reducing the corrosion of the grounding device of the transmission line tower near the pole site.
Disclosure of Invention
An object of the utility model is just to provide a device for reducing near transmission line shaft tower earthing device corrodes in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a device for reducing near transmission line shaft tower earthing device corrodes of polar site includes:
a horizontal grounding frame; the horizontal grounding frame is arranged around the tower legs of the towers and is electrically connected with the tower legs of the towers;
four horizontal rays; four horizontal rays are uniformly distributed around the horizontal grounding frame and are diffused outwards; one end of each horizontal ray is connected with the horizontal grounding frame;
four end rings; the other end of each horizontal ray is connected with an end part circular ring;
a coke layer; the coke layer is wrapped on the horizontal grounding frame, the horizontal ray and the end ring.
Preferably, the horizontal grounding frame is square, one end of each horizontal ray is connected with a corner of the horizontal grounding frame, and two adjacent horizontal rays are perpendicular to each other.
Specifically, the horizontal grounding frame, the four horizontal rays and the four end circular rings are all positioned on the same horizontal plane.
Preferably, the four tower foot combinations form a square, and each side of the horizontal grounding frame is parallel to each side of the adjacent tower foot combination and has a distance of 1.5 m.
Preferably, the coke layer has a thickness of 0.2 m.
Preferably, the end ring has a diameter of 1 m.
Preferably, the horizontal grounding frame, the horizontal ray and the end ring are all made of corrosion-resistant metal materials.
The beneficial effects of the utility model reside in that:
the utility model discloses a device for reducing near polar site transmission line shaft tower earthing device corrodes;
the horizontal grounding frame, the horizontal ray and the end part circular ring are all made of corrosion-resistant grounding metal materials, and the connection among the horizontal grounding frame, the horizontal ray and the end part circular ring is realized by heat release welding, so that the reliable electrical connection of the grounding device is guaranteed; coke is uniformly wrapped around the horizontal grounding frame, the horizontal ray and the end circular ring, so that the direct current corrosion resistance of the grounding device is effectively enhanced.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
In the figure: 1-horizontal grounding frame; 2-horizontal ray; 3-end ring; 4-coke layer; and 5, tower foot.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, the device for reducing corrosion of a grounding device of a power transmission line tower near an electrode site is characterized by comprising:
a horizontal grounding frame 1; the horizontal grounding frame 1 is arranged around the tower feet 5 of the tower, and the horizontal grounding frame 1 is electrically connected with the tower feet 5 of the tower;
four horizontal rays 2; four horizontal rays 2 are uniformly distributed around the horizontal grounding frame 1 and are emitted to the outside; one end of each horizontal ray 2 is connected with the horizontal grounding frame 1;
four end rings 3; the other end of each horizontal ray 2 is connected with an end circular ring 3;
a coke layer 4; the coke layer 4 is wrapped on the horizontal grounding frame 1, the horizontal ray 2 and the end circular ring 3.
In the embodiment, the arrangement of the end circular ring 3 can effectively reduce the corrosion of direct current to the end of the horizontal ray 2, and simultaneously can effectively reduce the ground potential rise of the end of the ray, thereby ensuring the safety of personnel.
According to the application, the coke layer 4 is wrapped on the horizontal grounding frame 1, the horizontal ray 2 and the end part circular ring 3, the corrosion rate of the coke layer is 10% -30% of that of the coke layer directly buried in soil, and the corrosion rate of a grounding device in completely dry coke is less than 10%; and coke is wrapped around the grounding device, so that the equivalent diameter of the grounding device is increased, the grounding resistance of the grounding device is reduced, and the lightning trip-out rate of a power transmission line tower is reduced.
Preferably, the horizontal grounding frame 1 is square, one end of each horizontal ray 2 is connected with a corner of the horizontal grounding frame 1, and two adjacent horizontal rays 2 are perpendicular to each other.
Specifically, the horizontal grounding frame 1, the four horizontal rays 2 and the four end circular rings 3 are all positioned on the same horizontal plane.
Preferably, four tower feet 5 are combined to form a square, and each side of the horizontal grounding frame 1 is parallel to each side of the adjacent tower foot 5 combination and has a distance of 1.5 m. In this embodiment, the horizontal grounding frame 1 is designed according to the size of the root opening of the power transmission line tower, and is 1.5m away from the tower foundation.
Preferably, the coke layer 4 has a thickness of 0.2 m. The coke with the thickness of 0.2m is wrapped, so that the corrosion of the horizontal grounding frame 1, the horizontal ray 2 and the end circular ring 3 can be effectively reduced.
Preferably, the end ring 3 has a diameter of 1 m.
Preferably, the horizontal grounding frame 1, the horizontal ray 2 and the end ring 3 are all made of corrosion-resistant metal materials.
In some embodiments, the length of the horizontal ray 2 is calculated according to the resistivity of the soil where the tower is located, the section of the corrosion-resistant material adopted by the horizontal grounding electrode ray, and the grounding resistance value to be achieved by the transmission line tower.
The power transmission line tower grounding device is strong in corrosion resistance and long in service life; due to the use of coke, the contact between the metal material of the horizontal grounding electrode and the soil is tighter, the contact resistance is reduced, the grounding resistance of the tower is reduced, and the tripping rate of lightning striking the tower is also reduced.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A device for reducing near transmission line shaft tower earthing device corrodes near polar site, its characterized in that includes:
a horizontal grounding frame; the horizontal grounding frame is arranged around the tower legs of the towers and is electrically connected with the tower legs of the towers;
four horizontal rays; four horizontal rays are uniformly distributed around the horizontal grounding frame and are diffused outwards; one end of each horizontal ray is connected with the horizontal grounding frame;
four end rings; the other end of each horizontal ray is connected with an end part circular ring;
a coke layer; the coke layer is wrapped on the horizontal grounding frame, the horizontal ray and the end ring.
2. The device for reducing the corrosion of the grounding device of the power transmission line tower nearby the pole site as recited in claim 1, wherein the horizontal grounding frames are square, one end of each horizontal ray is connected with a corner of the horizontal grounding frame, and two adjacent horizontal rays are perpendicular to each other.
3. The device for reducing the corrosion of the grounding device of the transmission line tower near the pole site as recited in claim 1, wherein the horizontal grounding frame, the four horizontal rays and the four end rings are all located on the same horizontal plane.
4. The device for reducing the corrosion of the grounding device of the power transmission line tower near the pole site as recited in claim 2, wherein four tower foot combinations form a square, and each side of the horizontal grounding frame is parallel to each side of the adjacent tower foot combination and has a distance of 1.5 m.
5. The device for reducing the corrosion of the grounding device of the power transmission line tower near the pole site as recited in claim 1, wherein the coke layer has a thickness of 0.2 m.
6. The device for reducing the corrosion of the tower grounding device of the power transmission line near the pole site as recited in claim 1, wherein the diameter of the end ring is 1 m.
7. The device for reducing the corrosion of the grounding device of the power transmission line tower near the pole site as recited in claim 1, wherein the horizontal grounding frame, the horizontal ray and the end ring are made of corrosion-resistant metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020476430.1U CN211507930U (en) | 2020-04-03 | 2020-04-03 | Device for reducing corrosion of grounding device of power transmission line tower near pole site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020476430.1U CN211507930U (en) | 2020-04-03 | 2020-04-03 | Device for reducing corrosion of grounding device of power transmission line tower near pole site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211507930U true CN211507930U (en) | 2020-09-15 |
Family
ID=72403691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020476430.1U Expired - Fee Related CN211507930U (en) | 2020-04-03 | 2020-04-03 | Device for reducing corrosion of grounding device of power transmission line tower near pole site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211507930U (en) |
-
2020
- 2020-04-03 CN CN202020476430.1U patent/CN211507930U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4901873B2 (en) | Deep grounding rod installation structure | |
| CN202076426U (en) | Grounding device of tower | |
| CN206673130U (en) | A kind of external force damage prevention soft graphite downlead | |
| WO2018041045A1 (en) | Lightning protection and/or static electricity prevention apparatus and method | |
| CN211182560U (en) | Novel tower lightning grounding device | |
| CN211507930U (en) | Device for reducing corrosion of grounding device of power transmission line tower near pole site | |
| KR20090090868A (en) | Grounding apparatus | |
| CN201504018U (en) | Lateral lightning rod for power transmission line | |
| CN105206949B (en) | A kind of electric power line pole tower earthing or grounding means | |
| CN204257835U (en) | Resistance module falls in a kind of special-shaped graphite ground connection | |
| CN103441342A (en) | Composite graphite grounding conductor and manufacturing method and application method thereof | |
| CN103001012A (en) | Anti-corrosion resistance-reducing lightning protection grounding device adopting multi-component alloy grounding body | |
| CN209200168U (en) | A kind of transmission tower earthing or grounding means | |
| CN201753538U (en) | Prestress electric pole with ground wire | |
| CN210577338U (en) | Lightning protection device of power transmission and transformation station | |
| CN204577627U (en) | A kind of earthing device reducing Wind turbines earth resistance | |
| CN209164012U (en) | Blower fan tower barrel thunderstorm electricity protective device | |
| CN205141156U (en) | It imitates to fall and hinders earthing device to join in marriage net height | |
| CN104538750B (en) | A kind of graphite mould grounding resistance-reducing module | |
| CN204827808U (en) | Lightning arrestor | |
| CN204760555U (en) | High resistivity soil wind -powered electricity generation field ground net | |
| CN204947106U (en) | A kind of graphite earth electrode | |
| CN204156118U (en) | A kind of lightning arrester for wind driven generator transformer and voltage transformer system | |
| CN205429193U (en) | Compound lightning ground connection | |
| CN203481407U (en) | Composite graphite grounding conductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 |