CN214673017U - Flexible graphite grounding electrode suitable for high-impedance soil environment - Google Patents
Flexible graphite grounding electrode suitable for high-impedance soil environment Download PDFInfo
- Publication number
- CN214673017U CN214673017U CN202121092666.6U CN202121092666U CN214673017U CN 214673017 U CN214673017 U CN 214673017U CN 202121092666 U CN202121092666 U CN 202121092666U CN 214673017 U CN214673017 U CN 214673017U
- Authority
- CN
- China
- Prior art keywords
- graphite
- rod body
- belt
- flexible graphite
- flexible
- 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.)
- Active
Links
Images
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The utility model relates to a flexible graphite grounding electrode suitable for high-impedance soil environment, which comprises a buried rod body and a plurality of flexible graphite belts detachably connected with the buried rod body, wherein the middle rod body of the buried rod body comprises a plurality of middle sections with different diameters, the diameters of the middle sections are sequentially reduced from the head end of the buried rod body to the tail end direction, each middle section is provided with a thread part, the thread part can be rotatably provided with a fastening component, the flexible graphite belts at least comprise a connecting part, the connecting part is provided with a through hole for the buried rod body to pass through, the diameter of the through hole is larger than the diameter of the middle section close to the head end of the buried rod body, the grounding electrode of the utility model can hang a plurality of flexible graphite belts through one buried rod, can reduce the grounding resistance of the grounding environment under the limited excavation environment, and can select the flexible graphite belts with proper quantity according to different grounding requirements, flexible use and is suitable for popularization and application.
Description
Technical Field
The utility model relates to a lightning grounding technical field, concretely relates to be suitable for high impedance soil environment's flexible graphite earthing pole.
Background
The grounding electrode is a metal conductor directly contacted with the ground, and a plurality of grounding points are connected into a loop type grounding network, so that the grounding electrode has the characteristics of reliable grounding and small grounding resistance. The grounding grid is a grounding device for rapidly guiding lightning current to the ground and protecting electrical equipment from being damaged by lightning. Lightning protection lies in grounding, and a long-term stable low-resistance grounding system is an important guarantee for reducing lightning accidents and safely operating equipment. Most mountain wind power projects are in severe environmental and geological conditions, the soil surface layer is shallow and loose and has small water content, most of the inner layer is fractured harder rock, and the resistivity is high. The traditional grounding grid adopts hot-galvanized flat steel as a grounding material, and as the operation life is prolonged, a grounding electrode slowly corrodes and fails, grounding resistance gradually rises, and finally the standard requirement of safe operation of a system cannot be met. The exceeding of the grounding resistance enables equipment and facilities such as wind turbine generators, electrical elements, power transmission and transformation lines and the like to be more easily damaged by lightning.
The expanded graphite has good moisture retention, moisture absorption, conductivity and corrosion resistance, does not pollute the environment, and is an ideal grounding material. At present, the common graphite flexible grounding belt is formed by weaving graphite wires and then pressing, is used in soil with small impedance, and has a good effect, but the grounding effect of the flexible grounding belt is obviously reduced in the soil environment which is poor, particularly the soil environment with large impedance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problem not enough, provide a flexible graphite earthing pole that is suitable for high impedance soil environment, still have better ground connection effect in the great soil environment of impedance.
The utility model discloses a solve above-mentioned technical problem not enough, the technical scheme who adopts is: a flexible graphite grounding electrode suitable for high-impedance soil environment comprises a buried rod body and a plurality of flexible graphite belts detachably connected with the buried rod body, the head end of the buried rod body is an underground tip, the tail end of the buried rod body is a grounding connection end, the middle rod body of the buried rod body comprises a plurality of middle sections with different diameters, the diameters of the middle sections are sequentially reduced from the head end to the tail end of the buried rod body, each middle section is provided with a thread part, and a fastening component can be rotatably arranged at the thread part, the fastening component consists of two clamping plates, a through hole is arranged in the center of each clamping plate, threads which can be matched with the thread parts of the buried rod bodies are arranged on the inner wall of each through hole, the flexible graphite belt is provided with at least one connecting part, a through hole for the buried rod body to pass through is formed in the connecting part, and the diameter of the through hole is larger than that of the middle section close to the head end of the buried rod body.
As the utility model relates to a be suitable for further optimization of high impedance soil environment's flexible graphite earthing pole: the flexible graphite belt is a flat belt structure woven by graphite wires.
As the utility model relates to a be suitable for further optimization of high impedance soil environment's flexible graphite earthing pole: and a steel core reinforcing plate is embedded in the flexible graphite belt.
As the utility model relates to a be suitable for further optimization of high impedance soil environment's flexible graphite earthing pole: the flexible graphite belt comprises a graphite core belt, a slow release belt and a spine discharge belt, the slow release belt is arranged in parallel along the length direction of the graphite core belt, the spine discharge belt is arranged at the tail end of the graphite core belt, the graphite core belt is of a flat belt structure formed by weaving graphite wires, the slow release belt comprises a graphite micro powder bag and a graphite weaving layer wrapped outside the graphite micro powder bag, the graphite micro powder bag comprises a wrapping layer made of glutinous rice paper and graphite micro powder filled in the wrapping layer, the slow release belt is perpendicular to the graphite core belt, the middle of the slow release belt is sewn with the graphite core belt through the graphite weaving layer, the spine discharge belt comprises a graphite conducting strip, one side edge of the graphite conducting strip is sewn with the tail end of the graphite core belt, and the other three side edges of the graphite conducting strip are respectively provided with a spark spine assembly.
As the utility model relates to a be suitable for further optimization of high impedance soil environment's flexible graphite earthing pole: spark plug components are arranged on the side edges of the slow release belt.
As the utility model relates to a be suitable for further optimization of high impedance soil environment's flexible graphite earthing pole: the spark plug assembly comprises a metal strip and a plurality of spikes arranged on one side of the metal strip side by side, the metal strip is sewn inside the graphite conducting strip, and the spikes extend out of the graphite conducting strip.
As the utility model relates to a be suitable for further optimization of high impedance soil environment's flexible graphite earthing pole: the graphite braided layer of the slow release belt is provided with meshes with the diameter of 1-5 mm.
As the utility model relates to a be suitable for further optimization of high impedance soil environment's flexible graphite earthing pole: the distance between two adjacent slow release bands is more than 10 cm.
As the utility model relates to a be suitable for further optimization of high impedance soil environment's flexible graphite earthing pole: the particle size of the graphite micro powder is 0.1-0.3 mm.
Advantageous effects
The grounding electrode of the utility model is provided with a plurality of flexible graphite belts by hanging a buried rod, which can reduce the grounding resistance of the grounding environment in the limited excavation environment, and the grounding electrode can select a proper number of flexible graphite belts according to different grounding requirements, is flexible to use and is suitable for popularization and application;
two, the utility model discloses an earthing pole can adopt the flexible graphite area that has composite construction, this graphite area has a plurality of slow release areas, the slow release area has the graphite micropowder package through the parcel of the weaving layer that has the mesh, the graphite micropowder package is the structure of wafer parcel graphite miropowder, bury the underground back when the graphite earthing area, along with the change of live time and soil environment, wafer of wafer package can be progressively eroded, the graphite micropowder in the wafer package can be let out and disperse in soil, form the conduction path in soil in the effect of "bridging" between the graphite micropowder, make the equivalent resistivity of soil medium reduce, further reduce the resistivity of soil around the earthing area.
Drawings
Fig. 1 is a schematic structural diagram of a buried rod body in a grounding electrode in embodiment 1;
FIG. 2 is a schematic view showing a state of use of the ground electrode according to embodiment 1;
FIG. 3 is a schematic diagram of the structure of a flexible graphite tape in the grounding electrode of example 2;
FIG. 4 is a schematic diagram of the internal structure of a slow release band of a flexible graphite band in a ground electrode in example 2;
the labels in the figure are: 1. the device comprises a buried rod body, 2 parts of a flexible graphite tape, 3 parts of a middle section, 4 parts of a threaded section, 2-1 parts of a graphite core tape, 2-2 parts of a slow release tape, 2-3 parts of a spine discharging tape, 2-4 parts of a graphite micropowder bag, 2-5 parts of a graphite braid, 2-6 parts of graphite micropowder, 2-7 parts of a graphite conducting strip, 2-8 parts of a spark spine assembly, 2-9 parts of a wrapping layer.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1 and 2: the utility model provides a be suitable for flexible graphite earthing pole of high impedance soil environment, includes buried body of rod 1 and three and the flexible graphite area 2 of burying 1 detachable connections of buried body of rod. The head end of the buried rod body 1 is the ground tip, the tail end of the buried rod body 1 is the ground connection end, the middle rod body of the buried rod body 1 comprises three middle sections 3 with different diameters, and the diameters of the middle sections 3 are sequentially reduced from the head end of the buried rod body 1 to the tail end direction. All be provided with screw thread portion 4 on every interlude 3, screw thread portion 4 department can establish fastening components soon, fastening components comprises two grip blocks, the grip block is the metal material, the center of grip block is provided with the through-hole, the inner wall of through-hole is equipped with can with bury the screw thread portion 4 of the ground body of rod 1 screw thread of mutually supporting, it is required to explain, the through-hole aperture of the grip block that every screw thread portion 4 corresponds is all inequality, and all suit with the diameter of this screw thread portion 4, need select the grip block that corresponds according to screw thread portion 4 when assembling and install. One end of the flexible graphite belt is a connecting part, a through hole for the buried rod body 1 to pass through is arranged on the connecting part, and the diameter of the through hole is larger than the diameter of the middle section 3 close to the head end of the buried rod body 1.
Example 2
As shown in fig. 3 and 4: the utility model provides a be suitable for flexible graphite earthing pole of high impedance soil environment, includes buried body of rod 1 and three and the flexible graphite area 2 of burying 1 detachable connections of buried body of rod. The head end of the buried rod body 1 is the ground tip, the tail end of the buried rod body 1 is the ground connection end, the middle rod body of the buried rod body 1 comprises three middle sections 3 with different diameters, and the diameters of the middle sections 3 are sequentially reduced from the head end of the buried rod body 1 to the tail end direction. All be provided with screw thread portion 4 on every interlude 3, screw thread portion 4 department can establish fastening components soon, fastening components comprises two grip blocks, the grip block is the metal material, the center of grip block is provided with the through-hole, the inner wall of through-hole is equipped with can with bury the screw thread portion 4 of the ground body of rod 1 screw thread of mutually supporting, the one end in flexible graphite area is connecting portion, be provided with the through-hole that can supply to bury ground body of rod 1 and pass on the connecting portion, the diameter of this through-hole is greater than the 3 diameters of interlude that are close to the 1 head end of the ground body of rod.
The flexible graphite tape 2 comprises a graphite core tape 2-1, 4 slow-release tapes 2-2 which are arranged in parallel along the length direction of the graphite core tape 2-1 and a spine discharge tape 2-3 which is arranged at the tail end of the graphite core tape 2-1. The distance between two adjacent slow release bands 2-2 is more than 10 cm.
The graphite core belt 2-1 is the core grounding structure of the grounding belt of the utility model, the graphite core belt 2-1 is a flat belt structure woven by graphite wires, the ratio of the width to the thickness of the graphite core belt 2-1 is 15-10:1, it is required to be explained that the graphite core belt 2-1 is a compact belt structure, and the graphite core belt 2-1 is compacted by a compactor after being woven, so that the gaps in the graphite core belt 2-1 are reduced as much as possible, and the conductive efficiency is improved.
The slow release belt 2-2 is the most obvious improvement compared with the existing grounding belt of the utility model, the slow release belt 2-2 comprises a graphite micropowder bag 2-4 and a graphite weaving layer 2-5 wrapped outside the graphite micropowder bag 2-4, the graphite weaving layer 2-5 of the slow release belt 2-2 is provided with meshes with the diameter of 1-5mm, the graphite micropowder bag 2-4 comprises a wrapping layer 2-9 made of glutinous rice paper and graphite micropowder 2-6 filled inside the wrapping layer 2-9, and the particle size of the graphite micropowder is 0.1-0.3 mm. The slow release belt 2-2 is perpendicular to the graphite core belt 2-1, the middle of the slow release belt 2-2 is sewn with the graphite core belt 2-1 through a graphite braid layer 2-5, the spine discharging belt 2-3 comprises a graphite conducting strip 2-7, one side edge of the graphite conducting strip 2-7 is sewn with the tail end of the graphite core belt 2-1, and spark spine assemblies 2-8 are respectively arranged on the other three side edges of the graphite conducting strip 2-7. The spark plug assembly 2-8 comprises a metal strip and a plurality of spikes arranged on one side of the metal strip side by side, the metal strip is sewn inside the graphite conducting strip 2-7, and the spikes extend out of the graphite conducting strip 2-7.
It should be noted that, in order to further improve the grounding effect, the spark plug component 2-8 may be arranged on the side of the slow release belt 2-2. The spark plug assemblies 2-8 are introduced into the whole grounding network through the graphite conducting strips 2-7, and when equipment is struck by lightning, a spark discharge effect can be formed in the process of lightning current discharge, so that the resistivity of soil around the grounding device is reduced, and the current dissipation is easier.
The flexible graphite belt of this embodiment has a plurality of slow release areas, and the slow release area has graphite miropowder package through the weaving layer parcel that has the mesh, and graphite miropowder package is the structure of sticky rice paper parcel graphite miropowder, buries underground when graphite grounding takes, along with the change of live time and soil environment, the sticky rice paper of graphite miropowder package can be eroded by step, and graphite miropowder in the graphite miropowder package can be let out and disperse in soil, and the "bridging" effect between the graphite miropowder forms the electrically conductive route in soil for the equivalent resistivity of soil medium reduces, further reduces the resistivity of the soil around the grounding takes.
The utility model discloses flexible graphite earthing pole's application method as follows: after the grounding ditch is excavated, the buried rod body is pricked into the bottom of the grounding ditch through the ground-entering pointed end of the buried rod body, the ground-entering depth is determined by the fact that the thread section located at the lowest end does not enter the ground, then a clamping plate is sleeved on the buried rod body through a through hole of the clamping plate and is screwed at the thread section at the lowest end, then a flexible graphite belt is sleeved into the buried rod body through the through hole of the flexible graphite belt, finally, the clamping plate is sleeved on the buried rod body through the through hole of the clamping plate and is screwed at the thread section at the lowest end, the flexible graphite belt is clamped tightly through the two clamping plates, then the grounding ditch is buried to the position of the upper thread section, the flexible graphite belt is installed and is continuously buried according to the method, and finally, the buried rod body is connected with the grounding down lead.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (9)
1. The utility model provides a be suitable for flexible graphite earthing pole of high impedance soil environment which characterized in that: comprises a buried rod body (1) and a plurality of flexible graphite belts (2) which are detachably connected with the buried rod body (1), wherein the head end of the buried rod body (1) is an underground tip end, the tail end of the buried rod body (1) is a grounding connection end, the middle rod body of the buried rod body (1) comprises a plurality of middle sections (3) with different diameters, the diameters of the middle sections (3) are sequentially reduced from the head end to the tail end of the buried rod body (1), each middle section (3) is provided with a thread part (4), the thread part (4) can be rotatably arranged on the fastening component, the fastening component comprises two clamping plates, the center of each clamping plate is provided with a through hole, the inner wall of the through hole is provided with a thread which can be mutually matched with the thread part (4) of the buried rod body (1), the flexible graphite belts (2) at least have a connection part, and the connection part is provided with a through hole which can be penetrated by the buried rod body (1), the diameter of the through hole is larger than the diameter of the middle section (3) close to the head end of the buried rod body (1).
2. A flexible graphite earth electrode suitable for high impedance soil environments as defined in claim 1, wherein: the flexible graphite belt (2) is a flat belt structure woven by graphite wires.
3. The flexible graphite earth electrode of claim 2 adapted for high impedance soil environments, wherein: and a steel core reinforcing plate is embedded in the flexible graphite belt (2).
4. A flexible graphite earth electrode suitable for high impedance soil environments as defined in claim 1, wherein: the flexible graphite belt (2) comprises a graphite core belt (2-1), slow release belts (2-2) arranged in parallel along the length direction of the graphite core belt (2-1) and spine discharge belts (2-3) arranged at the tail end of the graphite core belt (2-1), the graphite core belt (2-1) is of a flat belt structure formed by weaving graphite wires, the slow release belts (2-2) comprise graphite micro powder bags (2-4) and graphite weaving layers (2-5) wrapped outside the graphite micro powder bags (2-4), the graphite micro powder bags (2-4) comprise wrapping layers (2-9) made of glutinous rice paper and graphite micro powder (2-6) filled in the wrapping layers (2-9), and the slow release belts (2-2) and the graphite core belt (2-1) are perpendicular to each other, the middle part of the slow release belt (2-2) is sewn with the graphite core belt (2-1) through a graphite braid layer (2-5), the spine discharge belt (2-3) comprises graphite conducting strips (2-7), one side edge of each graphite conducting strip (2-7) is sewn with the tail end of the graphite core belt (2-1), and spark spine assemblies (2-8) are respectively arranged on the other three side edges of each graphite conducting strip (2-7).
5. The flexible graphite earth electrode of claim 4 adapted for high impedance soil environments, wherein: spark plug components (2-8) are arranged on the side edges of the slow release belt (2-2).
6. A flexible graphite earth electrode suitable for high impedance soil environments as claimed in claim 4 or 5, wherein: the spark plug assembly (2-8) comprises a metal strip and a plurality of spikes arranged on one side of the metal strip side by side, the metal strip is sewn inside the graphite conducting strip (2-7), and the spikes extend out of the graphite conducting strip (2-7).
7. The flexible graphite earth electrode of claim 4 adapted for high impedance soil environments, wherein: the graphite braid layer (2-5) of the slow release belt (2-2) is provided with meshes with the diameter of 1-5 mm.
8. The flexible graphite earth electrode of claim 4 adapted for high impedance soil environments, wherein: the distance between two adjacent slow release bands (2-2) is more than 10 cm.
9. The flexible graphite earth electrode of claim 4 adapted for high impedance soil environments, wherein: the particle size of the graphite micro powder (2-6) is 0.1-0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121092666.6U CN214673017U (en) | 2021-05-21 | 2021-05-21 | Flexible graphite grounding electrode suitable for high-impedance soil environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121092666.6U CN214673017U (en) | 2021-05-21 | 2021-05-21 | Flexible graphite grounding electrode suitable for high-impedance soil environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214673017U true CN214673017U (en) | 2021-11-09 |
Family
ID=78484984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121092666.6U Active CN214673017U (en) | 2021-05-21 | 2021-05-21 | Flexible graphite grounding electrode suitable for high-impedance soil environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214673017U (en) |
-
2021
- 2021-05-21 CN CN202121092666.6U patent/CN214673017U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211556167U (en) | Earthing device suitable for rock area | |
| CN103219597B (en) | Grounding wire device | |
| CN201956469U (en) | Meshy electrical equipment earthing body | |
| CN111541121A (en) | Method for reducing impact grounding impedance of power transmission line tower | |
| CN111555051A (en) | Graphite-based grounding electrode for low-voltage power distribution, grounding device and construction method of grounding device | |
| CN211182560U (en) | Novel tower lightning grounding device | |
| CN214673017U (en) | Flexible graphite grounding electrode suitable for high-impedance soil environment | |
| CN207409670U (en) | Motor-driven Rapid grounding device | |
| US6121543A (en) | Groundbed electrode with graphite containing cement | |
| CN116979285A (en) | Bi-directionally connected preassembled set of grounding devices and grounding method thereof | |
| CN203277665U (en) | Grounding wire device | |
| CN213460123U (en) | Solve flexible plasma earthing pole of ready-package that excavation is limited | |
| CN201478470U (en) | Structure of lightning-protection grounding network in karst area | |
| CN212062715U (en) | Grounding body convenient for fixing grounding wire | |
| CN214673016U (en) | Compound graphite grounding belt | |
| CN209056724U (en) | It is grounded dilatation discharge device | |
| CN207009687U (en) | Environment-protective ion earthing or grounding means | |
| CN219575955U (en) | A sleeve joint device for transmission and distribution slowly-releasing formula | |
| CN1855634A (en) | Overvoltage protecting ground device with insulative wire leading underground deeply | |
| CN113189146A (en) | Device and method for monitoring ground fissure landslide by conductive concrete grounding network | |
| CN2796160Y (en) | Overvoltage protective earthing device for insulation conductor deep leading into earth | |
| CN208045710U (en) | Graphite-based flexible ground body | |
| CN208835713U (en) | A kind of lightning protection combination unit | |
| CN101640385B (en) | Structure of lightning protection grounding network in karst area and manufacturing method thereof | |
| KR980012716A (en) | Grounding system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |