CN215856341U - Flexible anode structure - Google Patents
Flexible anode structure Download PDFInfo
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- CN215856341U CN215856341U CN202122291961.0U CN202122291961U CN215856341U CN 215856341 U CN215856341 U CN 215856341U CN 202122291961 U CN202122291961 U CN 202122291961U CN 215856341 U CN215856341 U CN 215856341U
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- flexible anode
- protective tube
- anode
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Abstract
The utility model provides a flexible anode structure which comprises a flexible anode, wherein a protective tube is fixedly sleeved on the outer side of the flexible anode, and a plurality of through holes are formed in the protective tube. In the above scheme, flexible positive pole structure has protected flexible positive pole not dragged when directional brill construction is dragged and is broken, and woven mesh and woven cloth can not wear and tear the damage, and the graphite powder does not drop, and flexible positive pole electric current flows normally, does not receive to block, has guaranteed pipeline cathodic protection anticorrosion effect, has prolonged pipeline life, reduces the emergence that the accident was revealed in the corruption.
Description
Technical Field
The utility model relates to the technical field of cathodic protection, in particular to a flexible anode structure.
Background
The corrosion damage of the buried steel pipe in the soil is mainly from an electrochemical corrosion mechanism, according to relevant specifications, a corrosion control system with an anticorrosive layer and cathode protection is adopted for newly-built pipelines, enough cathode current is applied to a protected metal structure in a certain mode, the metal potential is negatively shifted through cathode polarization, so that the dissolution speed of a corroded metal anode is greatly reduced, and even completely stopped, and the method for protecting the metal structure from corrosion damage is called as cathode protection.
Depending on the manner in which the cathodic protection current is provided, cathodic protection of buried pipelines can generally be divided into two methods: (1) adopting a metal anode with a negative potential to be in galvanic connection with a protected pipeline, namely, the cathodic protection of a sacrificial anode method; (2) and applying negative current to the protected pipeline by using an external power supply, which is cathodic protection by an external current method. Common embedding forms of impressed current cathodic protection auxiliary anodes include shallow-buried anode beds, deep-well anode beds, and flexible anode beds.
The flexible anode is laid along the pipeline to be protected in a close-range linear mode, the protection potential is uniformly distributed along the pipeline, and the problem that the over-protection and the protection are insufficient and exist simultaneously in the long-distance pipeline protection can be solved.
The pipeline is connected with the cathode of the potentiostat, the flexible anode is connected with the anode of the potentiostat, the whole current loop of the anode of the current potentiostat, the flexible anode, the soil, the pipeline and the cathode of the potentiostat is realized, and the pipeline receives current and then polarizes at negative potential, thereby achieving the purpose of cathodic protection.
If the open ditching groove is adopted for laying the flexible anode, the flexible anode is not dragged by external force. However, in the construction process, open trenches cannot be adopted when crossing rivers, railways and the like, and directional drilling construction is needed, namely, under the condition that the earth surface is not excavated, underground drill holes are drilled to lay pipelines and cables. When dragging pipeline or cable with the drill bit after the drilling and passing, if directly dragging flexible positive pole, its structure is dragging the in-process and is causing the copper core fracture easily, and mesh grid and woven cloth damage, and the graphite powder scatters to lead to flexible positive pole to be unable to use.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a flexible anode structure to solve the problem that when directional drilling is adopted for construction, if a flexible anode is directly dragged, the flexible anode is easily damaged and cannot be used in the dragging process.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a flexible anode structure, includes flexible positive pole, the fixed cover in the outside of flexible positive pole is equipped with the protection tube, a plurality of through-holes have been seted up on the protection tube.
Wherein, flexible positive pole includes copper core, conductive plastic, graphite, woven cloth and woven mesh, conductive plastic sets up week side of copper core, graphite sets up week side of conductive plastic, woven cloth sets up week side of graphite, woven mesh sets up week side of woven cloth.
Wherein, the material of mesh grid is insulating material.
Preferably, the material of the woven net is plastic.
Wherein, the protection tube is made of steel.
Wherein, the length of protection tube is 6 ~ 12 meters.
The through holes are distributed along the axial direction of the protection tube, and the interval between every two adjacent through holes is 5 meters.
The protection tube is welded and connected by a plurality of tubular structures, and the flexible anode is wound with anti-explosion mud and asbestos at the welding position of the protection tube.
The technical scheme of the utility model has the following beneficial effects:
in the above scheme, flexible positive pole structure has protected flexible positive pole not dragged when directional brill construction is dragged and is broken, and woven mesh and woven cloth can not wear and tear the damage, and the graphite powder does not drop, and flexible positive pole electric current flows normally, does not receive to block, has guaranteed pipeline cathodic protection anticorrosion effect, has prolonged pipeline life, reduces the emergence that the accident was revealed in the corruption.
Drawings
Fig. 1 is a schematic structural diagram of a flexible anode structure according to the present invention.
[ reference numerals ]
1. A copper core;
2. a conductive plastic;
3. graphite;
4. weaving cloth;
5. weaving a net;
6. protecting the tube;
7. and a through hole.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a flexible anode structure, including a flexible anode, a protective tube 6 is fixedly sleeved outside the flexible anode, and the protective tube 6 is provided with a plurality of through holes 7, so that slurry and water can enter the protective tube 6, thereby achieving circuit conduction and achieving the purpose of good current flowing cathode protection effect.
As shown in fig. 1, the flexible anode includes a copper core 1, conductive plastic 2, graphite 3, woven cloth 4, and a woven mesh 5, wherein the conductive plastic 2 is disposed on the circumferential side of the copper core 1, the graphite 3 is disposed on the circumferential side of the conductive plastic 2, the woven cloth 4 is disposed on the circumferential side of the graphite 3, and the woven mesh 5 is disposed on the circumferential side of the woven cloth 4.
Wherein, the material of mesh grid 5 is insulating material.
In this embodiment, the material of the mesh grid 5 is plastic.
Specifically, the nominal diameter of the protection tube 6 is 100 mm, the protection tube is made of steel, and no anticorrosive coating is formed.
In this embodiment, the length of the protection tube 6 is 6-12 meters. The through holes 7 are distributed along the axial direction of the protection pipe 6, and the interval between every two adjacent through holes 7 is 5 meters.
In this embodiment, the protection tubes 6 are welded and connected by a plurality of tubular structures, and the flexible anode is wound with anti-explosion mud and asbestos at the welding position of the protection tubes 6, so as to prevent the woven cloth 4 and the woven mesh 5 from being burnt out by high temperature in the welding process to damage the flexible anode.
According to the scheme, the flexible anode structure can protect the flexible anode from being damaged when the directional drill is dragged during construction; the flexible anode is wound with the anti-explosion mud and the asbestos heat-insulating material, so that the flexible anode is not burnt out when the protection pipe is welded; the protective tube is provided with a plurality of through holes, so that slurry can enter, the problem of insulation of the flexible anode and the protective tube is solved, and the cathode protection current flows normally.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. A flexible anode structure comprises a flexible anode and is characterized in that a protective tube is fixedly sleeved on the outer side of the flexible anode, and a plurality of through holes are formed in the protective tube;
the flexible anode comprises a copper core, conductive plastic, graphite, woven cloth and a woven net, wherein the conductive plastic is arranged on the periphery of the copper core, the graphite is arranged on the periphery of the conductive plastic, the woven cloth is arranged on the periphery of the graphite, and the woven net is arranged on the periphery of the woven cloth;
the protection tube is by a plurality of tubular structure welded connection, flexible positive pole is in the welding position department of protection tube twines has explosion-proof mud and asbestos.
2. The flexible anode structure of claim 1, wherein the mesh grid is made of an insulating material.
3. The flexible anode structure of claim 1, wherein the woven mesh is made of plastic.
4. The flexible anode structure of claim 1, wherein the protective tube is made of steel.
5. The flexible anode structure of claim 1, wherein the protective tube has a length of 6 to 12 meters.
6. The flexible anode structure of claim 1, wherein the through holes are distributed along an axial direction of the protection pipe, and a space between two adjacent through holes is 5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122291961.0U CN215856341U (en) | 2021-09-22 | 2021-09-22 | Flexible anode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122291961.0U CN215856341U (en) | 2021-09-22 | 2021-09-22 | Flexible anode structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215856341U true CN215856341U (en) | 2022-02-18 |
Family
ID=80255484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122291961.0U Active CN215856341U (en) | 2021-09-22 | 2021-09-22 | Flexible anode structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215856341U (en) |
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2021
- 2021-09-22 CN CN202122291961.0U patent/CN215856341U/en active Active
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