CN114875414A - Coronary auxiliary anode impressed current cathodic protection system - Google Patents
Coronary auxiliary anode impressed current cathodic protection system Download PDFInfo
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- CN114875414A CN114875414A CN202210395496.1A CN202210395496A CN114875414A CN 114875414 A CN114875414 A CN 114875414A CN 202210395496 A CN202210395496 A CN 202210395496A CN 114875414 A CN114875414 A CN 114875414A
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- pile foundation
- foundation structure
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- auxiliary anode
- coronary
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/10—Electrodes characterised by the structure
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
- C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
- C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
- C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
- C23F13/22—Monitoring arrangements therefor
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/20—Constructional parts or assemblies of the anodic or cathodic protection apparatus
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
- C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
- C23F2213/31—Immersed structures, e.g. submarine structures
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses a crown auxiliary anode impressed current cathodic protection system, which is used for an ocean pile foundation structure and comprises a reference electrode, a cable, a voltage transformation rectifier and a crown auxiliary anode, wherein a plurality of reference electrodes are fixedly arranged on the inner side of the ocean pile foundation structure, the reference electrodes are electrically connected with the voltage transformation rectifier through the cable, the voltage transformation rectifier is fixed at the top of the ocean pile foundation structure, the voltage transformation rectifier is also electrically connected with a plurality of crown auxiliary anodes through the cable, the crown auxiliary anodes comprise a plurality of auxiliary anodes and a main rod, the auxiliary anodes are distributed in a crown space and fixed at one end of the main rod, and the other end of the main rod is fixed on the inner side of the ocean pile foundation structure; the invention optimizes the structure form of the auxiliary anode while ensuring the cathodic protection effect, so that the structure is compact, the occupied space is small, and the installation is easy, thereby reducing the comprehensive cost of an impressed current system.
Description
Technical Field
The invention relates to the technical field of ocean engineering, in particular to a corona auxiliary anode impressed current cathodic protection system.
Background
At present, impressed current cathodic protection systems applied in the field of ocean engineering: some structural forms are complex, occupy large space, are easy to interfere with a protected body, and some need to be installed far away from the protected body on the sea. For impressed current cathodic protection with a complex structure, the installation period is long, the debugging is complex, and the installation cost is high. For an impressed current system which needs to be far away from a protected body at sea, the offshore construction cost is higher.
Disclosure of Invention
The invention aims to provide an impressed current cathodic protection system with auxiliary anodes distributed in a coronary space.
In order to solve the technical problems, the invention provides a corona auxiliary anode impressed current cathodic protection system, which is used for an ocean pile foundation structure and comprises a reference electrode, a cable, a voltage transformation rectifier and a corona auxiliary anode, wherein the inner side of the ocean pile foundation structure is fixedly provided with a plurality of reference electrodes, the reference electrodes are electrically connected with the voltage transformation rectifier through the cable, the voltage transformation rectifier is fixed at the top of the ocean pile foundation structure, the voltage transformation rectifier is also electrically connected with a plurality of corona auxiliary anodes through the cable, the corona auxiliary anodes comprise a plurality of auxiliary anodes and a main rod, the auxiliary anodes are distributed in a corona space and fixed at one end of the main rod, and the other end of the main rod is fixed at the inner side of the ocean pile foundation structure.
According to a preferred embodiment of the present invention, the plurality of auxiliary anodes are connected in parallel.
According to a preferred embodiment of the invention, the auxiliary anode is a disc-shaped auxiliary anode.
According to a preferred embodiment of the invention, the primary rod is of steel construction.
According to a preferred embodiment of the invention, the plurality of crown-shaped auxiliary anodes are respectively fixed on each corner near the bottom of the marine pile foundation structure.
According to a preferred embodiment of the invention, the reference electrode is arranged near the bottom of the marine pile foundation structure.
According to a preferred embodiment of the present invention, the reference electrode is one or more of silver, silver chloride or high purity zinc.
According to a preferred embodiment of the invention, the transformer rectifier is fixed on a platform block on top of the marine pile foundation structure.
According to a preferred embodiment of the invention, the marine pile foundation structure is a jacket.
According to a preferred embodiment of the invention, the fixing means is welding.
The invention has the technical effects that:
1. the invention relates to a corona auxiliary anode impressed current cathodic protection system, which electrolyzes seawater by installing a corona auxiliary anode and a variable voltage rectifier on an ocean pile foundation structure, wherein the corona auxiliary anode generates oxidation reaction and the ocean pile foundation structure is used as a cathode to generate reduction reaction, the corona auxiliary anode is formed by a plurality of disc-shaped auxiliary anodes in a corona space distribution and is welded and fixed on the ocean pile foundation structure through a main rod steel structure, thereby realizing the beneficial effect of providing the impressed current cathodic protection system with the auxiliary anodes in the corona space distribution.
2. The corona auxiliary anode impressed current cathodic protection system is provided with a plurality of corona auxiliary anodes, each corona auxiliary anode comprises a plurality of auxiliary anodes and a main rod, and the plurality of auxiliary anodes are distributed in a corona space and fixed on the main rods.
3. In the corona auxiliary anode impressed current cathodic protection system, the reference electrode is arranged to monitor the potential of the marine pile foundation structure and serve as a feedback signal to regulate the output current of the variable-voltage rectifier, so that the potential of the jacket is in a reasonable interval range, the efficiency of the cathodic protection system is improved, and the corona auxiliary anode impressed current cathodic protection system is suitable for newly-built marine pile foundation structures such as a jacket.
Drawings
FIG. 1 is a schematic view of the installation structure of a corona auxiliary anode impressed current cathodic protection system of the present invention;
FIG. 2 is a schematic diagram of a crown-shaped auxiliary anode structure of a system for impressed current cathodic protection of a crown-shaped auxiliary anode of the present invention;
FIG. 3 is a second schematic diagram of a crown-shaped auxiliary anode structure of a system for impressed current cathodic protection of a crown-shaped auxiliary anode of the present invention;
FIG. 4 is a third schematic diagram of a crown-shaped auxiliary anode structure of a system for impressed current cathodic protection of a crown-shaped auxiliary anode of the present invention;
FIG. 5 is an elevation view of a marine pile foundation structure of a corona assisted anode impressed current cathodic protection system of the present invention;
FIG. 6 is a side view of an ocean pile foundation structure of a corona assisted anode impressed current cathodic protection system of the present invention;
fig. 7 is a top view of an ocean pile foundation structure of a corona assisted anode impressed current cathodic protection system of the present invention.
Reference numerals: 1-a cable; 2-a crown-shaped auxiliary anode; 3-a reference electrode; 4-a transformer rectifier; 21-an auxiliary anode; 22-main rod; 5-marine pile foundation structure.
Detailed Description
The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.
As shown in fig. 1 and 2, an impressed current cathodic protection system for a coronary auxiliary anode is used for an ocean pile foundation structure 5, including reference electrode 3, cable 1, transformer rectifier 4 and coronary auxiliary anode 2, a plurality of reference electrodes 3 are fixedly mounted on the inner side of the ocean pile foundation structure 5, reference electrode 3 is electrically connected to transformer rectifier 4 through cable 1, transformer rectifier 4 is fixed on the top of the ocean pile foundation structure 5, transformer rectifier 4 is also electrically connected to a plurality of coronary auxiliary anodes 2 through cable 1, coronary auxiliary anode 2 includes a plurality of auxiliary anodes 21 and main rod 22, a plurality of auxiliary anodes 21 are coronary spatial distribution and are fixed on one end of main rod 22, the other end of main rod 22 is fixed on the inner side of the ocean pile foundation structure 5.
The crown-shaped auxiliary anode 2 and the reference electrode 3 are arranged on the inner side of the ocean pile foundation structure 5, and the transformer rectifier 4 is arranged on a block on the upper part of the ocean pile foundation structure 5. The invention is that a crown-shaped auxiliary anode 2 is arranged on the basis of an ocean pile foundation structure 5, seawater is electrolyzed, and oxidation reaction is carried out to generate chlorine. The crown-shaped auxiliary anodes 2 are distributed in a crown-shaped space by a plurality of disc-shaped auxiliary anodes 21 and are welded and fixed on marine pile foundation structures 5 such as a jacket and the like through a main rod 22 steel structure. All the disc-shaped auxiliary anodes 21 are connected in parallel, have the same size and form a standardized product. And meanwhile, the reference electrode 3 is installed, the potential of the marine pile foundation structures 5 such as the jacket is monitored and used as a feedback signal, and the output current of the variable-voltage rectifier 4 is adjusted, so that the potential of the marine pile foundation structures 5 such as the jacket is within a reasonable interval range.
Wherein, the crown-shaped auxiliary anode 2 is respectively fixed on each corner near the bottom of the ocean pile foundation structure 5. The reference electrode 3 is arranged near the bottom of the marine pile foundation structure 5. The reference electrode 3 is one or more composite electrodes of silver, silver chloride or high-purity zinc.
As shown in fig. 2, the coronary auxiliary anode 2 includes 5 auxiliary anodes 21 and a main rod 22, the 5 auxiliary anodes 21 are distributed in a coronary space and fixed at one end of the main rod 22, and the other end of the main rod 22 is fixed at the inner side of the marine pile foundation structure 5. The auxiliary anodes 21 are disc-shaped auxiliary anodes, 5 auxiliary anodes are connected in parallel, and the included angle between every two adjacent auxiliary anodes 21 is 90 degrees; the main rod 22 is of a steel structure.
As shown in fig. 3, the coronary auxiliary anode 2 includes 4 auxiliary anodes 21 and a main rod 22, the 4 auxiliary anodes 21 are distributed in a coronary space and fixed at one end of the main rod 22, and the other end of the main rod 22 is fixed at the inner side of the marine pile foundation structure 5. The auxiliary anode 21 is a disc-shaped auxiliary anode, 4 auxiliary anodes are connected in parallel, and the main rod 22 is of a steel structure.
As shown in fig. 4, the coronary auxiliary anode 2 includes 3 auxiliary anodes 21 and a main rod 22, the 3 auxiliary anodes 21 are distributed in a coronary space and fixed at one end of the main rod 22, and the other end of the main rod 22 is fixed at the inner side of the marine pile foundation structure 5. The auxiliary anode 21 is a disc-shaped auxiliary anode, and 3 auxiliary anodes are connected in parallel, and the main rod 22 is of a steel structure.
The size, number, and spatial distribution of the disk-shaped auxiliary anodes 21 and the number and distribution of the crown-shaped auxiliary anodes 2 are not limited.
As shown in fig. 5 to 7, the marine pile foundation structure is a jacket.
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. The utility model provides a coronary auxiliary anode impressed current cathodic protection system for ocean pile foundation structure, including reference electrode, cable, transformer rectifier and coronary auxiliary anode, its characterized in that, the inboard fixed mounting of ocean pile foundation structure has a plurality of reference electrodes, the reference electrode passes through cable electric connection in transformer rectifier, transformer rectifier is fixed in the top of ocean pile foundation structure, transformer rectifier still has a plurality of coronary auxiliary anodes through cable electric connection, coronary auxiliary anode includes a plurality of auxiliary anodes and mobile jib, a plurality of auxiliary anodes are coronary spatial distribution and are fixed in the one end of mobile jib, the other end of mobile jib is fixed in the inboard of ocean pile foundation structure.
2. The system of claim 1, wherein said plurality of auxiliary anodes are connected in parallel.
3. The system of claim 1, wherein said auxiliary anode is a disk-shaped auxiliary anode.
4. The system as claimed in claim 1, wherein the main rod is made of steel.
5. The system of claim 1, wherein said plurality of crown-type auxiliary anodes are attached to each corner of said marine pile structure near the bottom thereof.
6. The system of claim 1, wherein said reference electrode is positioned near the bottom of the marine pile foundation structure.
7. The system of claim 1, wherein said reference electrode is one or more of silver, silver chloride or high purity zinc.
8. The system of claim 1, wherein the transformer rectifier is mounted on a platform block on top of the marine pile foundation structure.
9. The system of claim 1, wherein the marine pile foundation structure is a jacket.
10. The system of claim 1, wherein said attachment means is welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210395496.1A CN114875414A (en) | 2022-04-14 | 2022-04-14 | Coronary auxiliary anode impressed current cathodic protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210395496.1A CN114875414A (en) | 2022-04-14 | 2022-04-14 | Coronary auxiliary anode impressed current cathodic protection system |
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| Publication Number | Publication Date |
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| CN114875414A true CN114875414A (en) | 2022-08-09 |
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| CN202210395496.1A Pending CN114875414A (en) | 2022-04-14 | 2022-04-14 | Coronary auxiliary anode impressed current cathodic protection system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586661A (en) * | 2004-09-03 | 2005-03-02 | 张宏生 | Multiple head electrode and its use in ear acupoint therapeutic instrument and hand and foot acupoint therapeutic instrument |
| CN201120318Y (en) * | 2007-11-01 | 2008-09-24 | 翁少杰 | Electrostatic dust remover |
| CN201722427U (en) * | 2010-04-09 | 2011-01-26 | 中国海洋石油总公司 | Jacket impressed current cathode protection device |
| CN209923437U (en) * | 2019-03-27 | 2020-01-10 | 中国石油天然气集团有限公司 | Auxiliary anode for storage tank cathode protection |
| CN212894989U (en) * | 2020-07-13 | 2021-04-06 | 浙江钰烯腐蚀控制股份有限公司 | Impressed current cathodic protection system of marine wind power foundation steel pile inner wall |
| CN113957869A (en) * | 2021-10-28 | 2022-01-21 | 淮阴工学院 | Overwater garbage collection device |
-
2022
- 2022-04-14 CN CN202210395496.1A patent/CN114875414A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586661A (en) * | 2004-09-03 | 2005-03-02 | 张宏生 | Multiple head electrode and its use in ear acupoint therapeutic instrument and hand and foot acupoint therapeutic instrument |
| CN201120318Y (en) * | 2007-11-01 | 2008-09-24 | 翁少杰 | Electrostatic dust remover |
| CN201722427U (en) * | 2010-04-09 | 2011-01-26 | 中国海洋石油总公司 | Jacket impressed current cathode protection device |
| CN209923437U (en) * | 2019-03-27 | 2020-01-10 | 中国石油天然气集团有限公司 | Auxiliary anode for storage tank cathode protection |
| CN212894989U (en) * | 2020-07-13 | 2021-04-06 | 浙江钰烯腐蚀控制股份有限公司 | Impressed current cathodic protection system of marine wind power foundation steel pile inner wall |
| CN113957869A (en) * | 2021-10-28 | 2022-01-21 | 淮阴工学院 | Overwater garbage collection device |
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