CN110747476B - Anode device for corrosion protection of tidal range region of ocean engineering structure - Google Patents
Anode device for corrosion protection of tidal range region of ocean engineering structure Download PDFInfo
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- CN110747476B CN110747476B CN201911135024.7A CN201911135024A CN110747476B CN 110747476 B CN110747476 B CN 110747476B CN 201911135024 A CN201911135024 A CN 201911135024A CN 110747476 B CN110747476 B CN 110747476B
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- metal anode
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- anode block
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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
Abstract
The invention relates to an anode device for corrosion protection of a tidal range region of a marine engineering structure, which comprises a metal anode block, a sponge block and a hoop body, wherein the sponge block is tightly attached to the surface of the structure to be protected, the metal anode block is attached to the surface of the sponge block, a height difference exists between the top of the sponge block and the top of the metal anode block, a gap is formed between the metal anode blocks, a penetrating metal wire is arranged in the metal anode block and connected with the hoop body, and the hoop body is tightly bound on the surface of the structure to be protected, so that the metal anode block and the sponge block are tightly pressed on the surface of the structure to be protected.
Description
Technical Field
The invention relates to the field of corrosion protection, in particular to an anode device for corrosion protection of a tidal range region of an ocean engineering structure.
Background
The corrosion protection is an important guarantee for the service life of the ocean engineering structure. Marine engineering structures including equipment facilities such as wharfs, bridges, drilling platforms and the like generally adopt steel pipe piles or concrete cast-in-place piles as foundations, then bearing platforms are cast above pile groups, and pier bodies are cast at the upper ends of the bearing platforms. The cast-in-place piles, the bearing platforms and the pier bodies of the ocean engineering structures basically penetrate through the whole ocean corrosion underwater area, tidal range area, splash area and atmospheric area. The marine environment is extremely corrosive to these structures and corresponding corrosion protection measures must be taken. Wherein, the tide zone and the splash zone are the most severe corrosion, and the corrosion protection of the tide zone and the splash zone is always the difficult point of the marine corrosion protection.
Chinese patent CN207376664U provides an in-service marine structure engineering anticorrosion system, and adopts a glass fiber sleeve to perform isolated coating on the whole region extending from the position below minus 1m to the position above the top surface of a splash zone to the position above plus 2m, thereby realizing the isolation of the external corrosive medium from the internal reinforced concrete and achieving the purpose of anticorrosion. The disadvantage is that the fiberglass sleeve deteriorates with time, has a limited working life, and requires frequent replacement. The replacement can be carried out only after the seawater in the tidal range area and the splash area is isolated, and the maintenance cost is high. Chinese patent CN2813639Y provides a sacrificial anode protection device for reinforced concrete structures, which comprises a sacrificial anode, a cable, and a steel bar connected to the other end of the cable and used for protecting metal inside the structure, wherein the anode is fixed on the surface of the tidal range or splash zone of the structure by mortar, and the lowest construction line of the solidified mortar is submerged or at least contacted with the low tide line. The scheme has the disadvantages that the mortar is required to have enough through holes so that corrosion products of the anode can be easily diffused in the mortar and are easily taken away by seawater, but the more holes and the good binding force are contradictory, the mortar with more holes is difficult to firmly fix the sacrificial anode on the surface of a tidal range area of a structure, and the anode can be impacted, loosened and even dropped off by sea waves along with the time extension; in addition, when the anode is exhausted along with the prolonging of the service life, a new anode needs to be replaced, and only cement mortar can be chiseled, so that the structure is damaged, and the service life of the structure is influenced. In view of the above, it is necessary to provide an anode device for corrosion protection in tidal range region of ocean engineering structure, which is easy to remove anode corrosion products and easy to maintain.
Disclosure of Invention
In order to solve the technical problems, the technical scheme of the invention is as follows:
an anode device for corrosion protection of a tidal range area of an ocean engineering structure is characterized by comprising a metal anode block, a sponge block and a hoop body, wherein the sponge block comprises a first surface and a second surface which are parallel to each other, the metal anode block comprises an inner surface and an outer surface, the first surface of the sponge block is tightly attached to the surface of the structure to be protected, the inner surface of the metal anode block is attached to the second surface of the sponge block, a height difference exists between the top of the sponge block and the top of the metal anode block, the number of the metal anode blocks is equal to that of the sponge block, the metal anode blocks are installed in a one-to-one matching mode, a gap is formed between the metal anode blocks, a metal wire which vertically penetrates through the metal anode block is arranged inside the metal anode block, the upper end and the lower end of the metal wire extend to the outside of the metal anode block, the metal wire is connected with the hoop body, and the hoop body is tightly bound to the surface of the structure to be protected, so that the metal anode block and the sponge block are tightly pressed on the surface of the protected structure.
The width of the metal anode block is not less than that of the sponge block, and the length of the sponge block is less than that of the metal anode block.
The two hoop bodies are arranged above and below the metal anode block in the vertical height direction.
Preferably, the metal wire penetrating through the metal anode block is made of the same material as the hoop body.
Further preferably, the end of the metal wire vertically penetrating through the inside of the metal anode block is wound on the hoop body for fixing.
Further preferably, the metal anode block is L type structure, L type structure metal anode block contains long limit and minor face, the minor face of L type structure metal anode block is towards the internal surface, L type structure metal anode block long limit inside has the wire that runs through perpendicularly, the sponge piece sets up on the step of the minor face formation of metal anode block L type structure, L type structure metal anode block is the arc.
Further preferably, the metal anode block contains inner wall and outer wall, the inner wall orientation of metal anode block is by the structure surface of protection, metal anode block inner wall is provided with blind hole groove structure, the non-blind hole groove region of metal anode block is provided with the wire that runs through perpendicularly, the sponge piece sets up in metal anode block blind hole inslot, the metal anode block is the arc.
Further preferably, the thickness of the sponge block is smaller than that of the metal anode block.
Further preferably, the metal anode block is an arc-shaped plate.
Further preferably, the thickness of the sponge block is not less than the depth of the blind hole groove.
Compared with the prior art, the invention has the following beneficial effects:
1. the metal anode is hooped on the surface of the protected structure, and when the metal anode is used up, the connection between the hoop body and the metal wire can be disassembled for replacement, so that the structure is not damaged. The maintenance operation can be carried out at any time no matter in a tidal range area or a splashing area, seawater does not need to be isolated, and the replacement and maintenance are easy.
2. The sponge block is arranged between the metal anode block and the surface of the protected structure, the metal anode block and the sponge block which are positioned in a tidal range area can be soaked by seawater when tide rises, the sponge block absorbs the seawater, the seawater is stored in the sponge when the tide falls, an electrolyte channel is continuously provided between the metal anode block and the protected structure, and corrosion protection during the tide falling is ensured.
3. The height difference exists between the top of the sponge block and the top of the metal anode block, and seawater can be flushed into the offset area during tidal rise every time, so that corrosion products of the metal anode are flushed away.
In order to make the aforementioned and other objects, features and advantages of the invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic diagram of a first embodiment of the invention.
Fig. 2 is a schematic view of a metal anode block according to a second embodiment of the present invention.
Fig. 3 is a schematic diagram of a third embodiment of the present invention.
Fig. 4 is a schematic view of a metal anode block according to a third embodiment of the present invention.
Fig. 5 is a schematic view of a fourth embodiment of the present invention.
Fig. 6 is a schematic view of a metal anode block according to a fourth embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Example one
Referring to fig. 1, an anode device for corrosion protection in tidal range of marine engineering structures is characterized by comprising a metal anode block 1, a sponge block 2 and a hoop body 3, wherein the sponge block 2 comprises a first surface and a second surface which are parallel to each other, the metal anode block 1 comprises an inner surface and an outer surface, the first surface of the sponge block 2 is tightly attached to the surface of a structure 4 to be protected, the inner surface of the metal anode block 1 is attached to the second surface of the sponge block 2, a height difference 5 exists between the top of the sponge block 2 and the top of the metal anode block 1, the number of the metal anode blocks 1 is equal to that of the sponge block 2, the metal anode blocks 1 are installed in a one-to-one matching manner, a gap is formed between the metal anode blocks 1, a metal wire 6 which vertically penetrates through the metal anode block 1 is arranged inside, and the upper end and the lower end of the metal wire 6 extend to the outside of the metal anode block 1, the metal wire 6 is connected with the hoop body 3, and the hoop body 3 is tightly bound on the surface of the protected structure 4, so that the metal anode block 1 and the sponge block 2 are tightly pressed on the surface of the protected structure 4.
The width of the metal anode block 1 is not less than that of the sponge block 2, and the length of the sponge block 2 is less than that of the metal anode block 1.
The two hoop bodies 3 are arranged above and below the metal anode block 1 in the vertical height direction.
The metal wire 6 penetrating through the metal anode block 1 is the same as the hoop body 3 in material.
The end of the metal wire 6 which vertically penetrates through the metal anode block 1 is wound on the hoop body 3 for fixing.
The metal anode block 1 is of a cuboid structure.
The thickness of the sponge block is smaller than that of the metal anode block.
Example two
Referring to fig. 1 to 2, the metal anode block 1 is an arc-shaped plate. And the arc curvature radius of the metal anode block 1 is equal to the surface curvature radius of the protected structure 4. The rest is the same as the first embodiment.
EXAMPLE III
Referring to fig. 3 and 4, the metal anode block 1 is an L-shaped structure, the L-shaped metal anode block 1 includes a long side 12 and a short side 11, the short side 11 of the L-shaped metal anode block faces the inner surface, and a metal wire 6 vertically penetrating through the long side 12 is disposed inside the long side.
The thickness of the sponge block 2 is smaller than that of the metal anode block 1.
The sponge block is arranged on a step formed by the short edge 11 of the L-shaped structure of the metal anode block.
The L-shaped structure metal anode block 1 is an arc-shaped plate.
The rest is the same as the first embodiment.
Example four
Referring to fig. 5 and 6, the metal anode block 1 includes an inner wall and an outer wall, the inner wall of the metal anode block 1 faces the surface of the structure 4 to be protected, the inner wall of the metal anode block 1 is provided with a blind hole groove 13 structure, a non-blind hole groove area of the metal anode block 1 is provided with a metal wire 6 which vertically penetrates through the metal anode block 1, the sponge block 2 is arranged in the blind hole groove 13 of the metal anode block 1, the metal anode block 1 is an arc-shaped plate, and the thickness of the sponge block 2 is not less than the depth of the blind hole groove 13.
The rest is the same as the first embodiment.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. An anode device for corrosion protection of a tidal range area of an ocean engineering structure is characterized by comprising a metal anode block, a sponge block and a hoop body, wherein the sponge block comprises a first surface and a second surface which are parallel to each other, the metal anode block comprises an inner surface and an outer surface, the first surface of the sponge block is tightly attached to the surface of the structure to be protected, the inner surface of the metal anode block is attached to the second surface of the sponge block, a height difference exists between the top of the sponge block and the top of the metal anode block, the number of the metal anode blocks is equal to that of the sponge block, the metal anode blocks are installed in a one-to-one matching mode, a gap is formed between the metal anode blocks, a metal wire which vertically penetrates through the metal anode block is arranged inside the metal anode block, the upper end and the lower end of the metal wire extend to the outside of the metal anode block, the metal wire is connected with the hoop body, and the hoop body is tightly bound to the surface of the structure to be protected, so that the metal anode block and the sponge block are tightly pressed on the surface of the protected structure; the width of the metal anode block is not less than that of the sponge block, and the length of the sponge block is less than that of the metal anode block; the two hoop bodies are arranged above and below the metal anode block in the vertical height direction; the metal wire penetrating through the interior of the metal anode block is the same as the hoop body in material; the tail end of the metal wire vertically penetrating through the metal anode block is wound on the hoop body to be fixed; the metal anode block is L type structure, L type structure metal anode block contains long limit and minor face, the minor face of L type structure metal anode block is towards the internal surface, L type structure metal anode block long limit inside has the wire that runs through perpendicularly, the sponge piece sets up on the step of the minor face formation of metal anode block L type structure, L type structure metal anode block is the arc.
2. The anode device for tidal range region corrosion protection of ocean engineering structures according to claim 1, wherein said metal anode block comprises an inner wall and an outer wall, said inner wall of said metal anode block faces the surface of the structure to be protected, said inner wall of said metal anode block is provided with a blind hole groove structure, said non-blind hole groove region of said metal anode block is provided with a vertically penetrating metal wire, said sponge block is disposed in said blind hole groove of said metal anode block, said metal anode block is an arc plate.
3. The anode device for tidal range corrosion protection of marine engineering structures as claimed in claim 1, wherein the thickness of the sponge block is less than the thickness of the metal anode block.
4. The anode device for tidal range corrosion protection of marine engineering structures as claimed in claim 2, wherein the thickness of the sponge block is not less than the depth of the blind hole groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911135024.7A CN110747476B (en) | 2019-11-19 | 2019-11-19 | Anode device for corrosion protection of tidal range region of ocean engineering structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911135024.7A CN110747476B (en) | 2019-11-19 | 2019-11-19 | Anode device for corrosion protection of tidal range region of ocean engineering structure |
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| CN110747476A CN110747476A (en) | 2020-02-04 |
| CN110747476B true CN110747476B (en) | 2021-09-17 |
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| CN201911135024.7A Active CN110747476B (en) | 2019-11-19 | 2019-11-19 | Anode device for corrosion protection of tidal range region of ocean engineering structure |
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| CN113718836A (en) * | 2021-09-16 | 2021-11-30 | 中国华能集团清洁能源技术研究院有限公司 | Offshore wind power foundation with anti-corrosion function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965128A (en) * | 1982-10-05 | 1984-04-13 | Dai Ichi High Frequency Co Ltd | Protection of anticorrosive layer applied to pillar of marine structure and protective float therefor |
| CN2559655Y (en) * | 2002-08-23 | 2003-07-09 | 中国科学院海洋研究所 | Shield sleeve for spoondrift splash zone corrosion protection |
| CN2813639Y (en) * | 2004-08-03 | 2006-09-06 | 中国海洋大学 | Dead anode protector for steel reinforced concrete structures |
| CN101130874A (en) * | 2006-08-23 | 2008-02-27 | 中国科学院金属研究所 | Method for fixing sacrificial anode of steel pipe pile |
| JP2008248659A (en) * | 2007-03-30 | 2008-10-16 | Nippon Steel Corp | Structure of double anticorrosive-coated steel sheet pile superior in joint part anti-corrosiveness and steel sheet pile used for its structure |
| CN103422095A (en) * | 2013-09-06 | 2013-12-04 | 北京安科管道工程科技有限公司 | Method for protecting cathode of metal structure in intertidal zone |
| CN207376664U (en) * | 2017-07-14 | 2018-05-18 | 中交武汉港湾工程设计研究院有限公司 | In-service marine structure object engineering corrosion-resistant loses system |
-
2019
- 2019-11-19 CN CN201911135024.7A patent/CN110747476B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965128A (en) * | 1982-10-05 | 1984-04-13 | Dai Ichi High Frequency Co Ltd | Protection of anticorrosive layer applied to pillar of marine structure and protective float therefor |
| CN2559655Y (en) * | 2002-08-23 | 2003-07-09 | 中国科学院海洋研究所 | Shield sleeve for spoondrift splash zone corrosion protection |
| CN2813639Y (en) * | 2004-08-03 | 2006-09-06 | 中国海洋大学 | Dead anode protector for steel reinforced concrete structures |
| CN101130874A (en) * | 2006-08-23 | 2008-02-27 | 中国科学院金属研究所 | Method for fixing sacrificial anode of steel pipe pile |
| JP2008248659A (en) * | 2007-03-30 | 2008-10-16 | Nippon Steel Corp | Structure of double anticorrosive-coated steel sheet pile superior in joint part anti-corrosiveness and steel sheet pile used for its structure |
| CN103422095A (en) * | 2013-09-06 | 2013-12-04 | 北京安科管道工程科技有限公司 | Method for protecting cathode of metal structure in intertidal zone |
| CN207376664U (en) * | 2017-07-14 | 2018-05-18 | 中交武汉港湾工程设计研究院有限公司 | In-service marine structure object engineering corrosion-resistant loses system |
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