CN201722427U - Jacket impressed current cathode protection device - Google Patents
Jacket impressed current cathode protection device Download PDFInfo
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- CN201722427U CN201722427U CN2010201573614U CN201020157361U CN201722427U CN 201722427 U CN201722427 U CN 201722427U CN 2010201573614 U CN2010201573614 U CN 2010201573614U CN 201020157361 U CN201020157361 U CN 201020157361U CN 201722427 U CN201722427 U CN 201722427U
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- jacket
- anode
- protection device
- impressed current
- potentiostat
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Abstract
A jacket impressed current cathode protection device is provided with a constant potential rectifier, wherein the cathode of the constant potential rectifier is connected with the upper part of the jacket through a cathode cable, the anode is connected with an auxiliary anode assembly through an anode cable, the output end of the constant potential rectifier is respectively connected with a plurality of reference electrodes through terminal blocks, and the reference electrodes are arranged on the jacket. The utility model can effectively protect the jacket, prevents seawater from corroding the jacket, is particularly suitable for the large-sized jacket, also is more economic and is strong on the operability.
Description
Technical field
The utility model relates to protector, relates in particular to a kind of jacket impressed current catholic protection device, belongs to field of ocean engineering.
Background technology
In the petroleum development engineering, need build various platforms such as production vessel, accommodation platform, central processing platform at sea at sea.Platform general main comprising: oceanographic engineering chunk, ocean engineering structure such as supporting structure-jacket and standpipe under water, these ocean engineering structures are generally steel construction.
Because seawater is a kind of very strong corrosive medium, if do not take effective anticorrosive measure, serious corrosion will take place in the ocean jacket of steel.The jacket corrosion can be shortened the service life of platform, increases the expense of platform maintenance and maintenance.In order to prevent the corrosion of seawater, usually, jacket corrosion-resisting device-sacrificial anode protection cathodic protector is installed on jacket, anticorrosion in order to jacket to jacket.
Existing sacrificial anode protection cathodic protector mainly is made up of the sacrificial anode and the anode leg that are evenly arranged on the jacket, and sacrificial anode is soldered on the jacket by the anode leg, and the consumption by sacrificial anode itself provides protection for jacket.This device has does not need external power source, structures are noiseless or very little, operation does not need management, the more little economy more of engineering after debugging, protective current is evenly distributed and the utilization ratio advantages of higher to being close to.Therefore, be widely used on the low profile catheter frame, in order to ocean steel construction protection, and, obtained good anticorrosion ability.But existing sacrificial anode protection cathodic protector has increased jacket load owing to need to use a large amount of aluminum alloy materials.
Along with the intensification gradually in marine site and the complexity day by day of jacket structure; large-sized deep water jacket cost increases considerably; if on the large-sized deep water jacket, adopt existing sacrificial anode protection cathodic protector; to there be hundreds of ton aluminium alloy to be wasted; and; the large-sized deep water jacket load increase that causes owing to too much use sacrificial anode also can have influence on the stability of large-sized deep water jacket, and the jacket design strength is increased.
The utility model content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming that prior art exists, and a kind of jacket impressed current catholic protection device is provided, and it is the armour tubing frame effectively, prevents the corrosion of seawater to jacket; Especially suitable for the large-sized deep water jacket, and very economical, workable.
The purpose of this utility model is realized by following technical scheme:
A kind of jacket impressed current catholic protection device; it is characterized in that: be provided with potentiostat; the negative pole of this potentiostat is connected with jacket top by cathode cable; positive pole is connected with the supplementary anode assembly by anode cable; the output terminal of potentiostat is connected with several reference electrodes respectively through connection terminal, and this reference electrode is installed on the jacket.
Described potentiostat is cabinet type, is placed on the deck of jacket 4.
Described several reference electrodes are placed on respectively on each angle, jacket bottom.
Described supplementary anode assembly is a fence type, is fixed in seabed and corresponding with the inclined-plane of jacket.
Described supplementary anode assembly is made up of several titanium parent tube shape Mixed Metal Oxide Coated Titanium Anodes, and metal oxide is made up of iridium oxide and tantalum oxide, and mol ratio is: 0.3: 1.
Described several anode parallel connections, each anode is installed in the ready-formed engineering plastics anode case, is mechanically fastened on the clump.
Described reference electrode is made up of reference electrode body and sheath, and the reference electrode body adopts silver, silver chloride or high purity zinc a kind of or both combined electrodes wherein; Protective sleeve adopts polyvinyl chloride or polyethylene insulation material to make.
The beneficial effects of the utility model: the utility model prevents the corrosion of seawater to jacket owing to adopt effectively armour tubing frame of technique scheme, and is especially suitable for large jacket; And, more economically, workable.
Description of drawings:
Fig. 1 arranges synoptic diagram for the utility model on large jacket.
Major label description in figure:
1 cathode cable, 2 cabinet type potentiostats, 3 reference electrodes, 4 jackets, 5 anode cables, 6 supplementary anode assemblies.
Embodiment
Consult shown in Figure 1, the utility model comprises: cathode cable 1, cabinet type potentiostat 2, reference electrode 3, anode cable 5 and supplementary anode assembly 6, cabinet type potentiostat 2 is placed in the equipment room of jacket 4 upperdecks, be input as three-phase alternating current, the negative pole of cabinet type potentiostat 2 is connected by cathode cable 1 with jacket 4 tops, positive pole is connected by anode cable 5 with supplementary anode assembly 6, the output terminal of cabinet type potentiostat 2 is connected respectively on several reference electrodes 3 by the reference electrode terminal, feed back on the cabinet type potentiostat 2 by several reference electrode 3 measured jacket surface potentials, in order to regulate outward current and current potential.Reference electrode 3 is made up of reference electrode body and sheath, and the reference electrode body adopts silver/silver chloride or high purity zinc (greater than 99.99%Zn) a kind of or both combined electrodes wherein, electrode body stable performance; Protective sleeve adopts polyvinyl chloride or polyethylene insulation material to make.Reference electrode 3 is placed on apart from anode place farthest, and as far as possible near jacket 4 surfaces, to reduce the ohmmic drop.On each angle, jacket bottom (node) reference electrode is set, in order to the whether overprotection or under proteciton of monitoring tube frame 4 bottom potential.The corresponding cover cathodic protector in each inclined-plane of jacket 4, if the cathodic protector of certain face damages, other face can also works better.
Fence type supplementary anode assembly 6 is made up of several titanium parent tube shape Mixed Metal Oxide Coated Titanium Anodes, and metal oxide is made up of iridium oxide and tantalum oxide, and mol ratio is: 0.3: 1; Coating and matrix bond are stable, and spending rate and oxygen overpotential reduce during the coating electrolysis.Anode cable 5 is electrically connected on titanium pipe middle part, waters epoxy sealing earlier, and rubber seal is adopted at two ends.Several anode cables 5 are electrically connected and conflux into an anode cable 5, and each anode parallel connection, cause whole anode assemblies to work in case certain anode breaks down.Each anode is installed in the ready-formed engineering plastics anode case, is mechanically fastened on the clump.Whole anode assemblies is fixed in the seabed and away from jacket 4, the corresponding supplementary anode assembly 6 in each inclined-plane of jacket 4.The size and location of supplementary anode assembly 6 are calculated by boundary Element Numerical Simulation according to the surface size of protected jacket 4.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. jacket impressed current catholic protection device; it is characterized in that: be provided with potentiostat; the negative pole of this potentiostat is connected with jacket top by cathode cable; positive pole is connected with the supplementary anode assembly by anode cable; the output terminal of potentiostat is connected with several reference electrodes respectively through connection terminal, and this reference electrode is installed on the jacket.
2. jacket impressed current catholic protection device according to claim 1 is characterized in that: described potentiostat is cabinet type, is placed on the deck of jacket 4.
3. jacket impressed current catholic protection device according to claim 1 is characterized in that: described several reference electrodes are placed on respectively on each angle, jacket bottom.
4. jacket impressed current catholic protection device according to claim 1 is characterized in that: described supplementary anode assembly is a fence type, is fixed in seabed and corresponding with the inclined-plane of jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201573614U CN201722427U (en) | 2010-04-09 | 2010-04-09 | Jacket impressed current cathode protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201573614U CN201722427U (en) | 2010-04-09 | 2010-04-09 | Jacket impressed current cathode protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201722427U true CN201722427U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201573614U Expired - Lifetime CN201722427U (en) | 2010-04-09 | 2010-04-09 | Jacket impressed current cathode protection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201722427U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277580A (en) * | 2011-08-31 | 2011-12-14 | 中国海洋石油总公司 | Impressed current cathode protection method for jacket platform |
| CN102560502A (en) * | 2012-01-18 | 2012-07-11 | 中山市汇诚材料科技有限公司 | Auxiliary anode-flexible anode node sealing structure for cathodic protection |
| CN103060815A (en) * | 2012-12-24 | 2013-04-24 | 青岛钢研纳克检测防护技术有限公司 | Jacket platform far anode type corrosion control device and use method thereof |
| CN108118343A (en) * | 2018-01-17 | 2018-06-05 | 青岛钢研纳克检测防护技术有限公司 | The impressed current of jacket platform and sacrificial anode Combined Protection device and method |
| WO2019071884A1 (en) * | 2017-10-13 | 2019-04-18 | 大连科迈尔防腐科技有限公司 | Marine tensile anode system and installation method thereof |
| CN112025232A (en) * | 2020-07-07 | 2020-12-04 | 中国海洋石油集团有限公司 | Method for installing remote jacket impressed current cathodic protection integrated device |
| CN112522712A (en) * | 2020-12-25 | 2021-03-19 | 中海油能源发展股份有限公司 | Jacket stretching type impressed current cable protection device |
| CN114318348A (en) * | 2021-11-17 | 2022-04-12 | 海洋石油工程股份有限公司 | Inclined-pulling type impressed current cathodic protection device and method |
| CN114875414A (en) * | 2022-04-14 | 2022-08-09 | 海洋石油工程股份有限公司 | Coronary auxiliary anode impressed current cathodic protection system |
-
2010
- 2010-04-09 CN CN2010201573614U patent/CN201722427U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277580A (en) * | 2011-08-31 | 2011-12-14 | 中国海洋石油总公司 | Impressed current cathode protection method for jacket platform |
| CN102560502A (en) * | 2012-01-18 | 2012-07-11 | 中山市汇诚材料科技有限公司 | Auxiliary anode-flexible anode node sealing structure for cathodic protection |
| CN103060815A (en) * | 2012-12-24 | 2013-04-24 | 青岛钢研纳克检测防护技术有限公司 | Jacket platform far anode type corrosion control device and use method thereof |
| WO2019071884A1 (en) * | 2017-10-13 | 2019-04-18 | 大连科迈尔防腐科技有限公司 | Marine tensile anode system and installation method thereof |
| US11505869B2 (en) | 2017-10-13 | 2022-11-22 | Dalian Kingmile Anticorrosion Technology Co., Ltd. | Offshore tension anode system and installation method thereof |
| CN108118343A (en) * | 2018-01-17 | 2018-06-05 | 青岛钢研纳克检测防护技术有限公司 | The impressed current of jacket platform and sacrificial anode Combined Protection device and method |
| CN112025232A (en) * | 2020-07-07 | 2020-12-04 | 中国海洋石油集团有限公司 | Method for installing remote jacket impressed current cathodic protection integrated device |
| CN112025232B (en) * | 2020-07-07 | 2022-02-18 | 中国海洋石油集团有限公司 | Method for installing remote jacket impressed current cathodic protection integrated device |
| CN112522712A (en) * | 2020-12-25 | 2021-03-19 | 中海油能源发展股份有限公司 | Jacket stretching type impressed current cable protection device |
| CN114318348A (en) * | 2021-11-17 | 2022-04-12 | 海洋石油工程股份有限公司 | Inclined-pulling type impressed current cathodic protection device and method |
| CN114318348B (en) * | 2021-11-17 | 2023-11-28 | 海洋石油工程股份有限公司 | Oblique-pulling type impressed current cathode protection device and method |
| CN114875414A (en) * | 2022-04-14 | 2022-08-09 | 海洋石油工程股份有限公司 | Coronary auxiliary anode impressed current cathodic protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Offshore Oil Engineering Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: Offshore Oil Engineering Co., Ltd. Patentee before: China National Offshore Oil Corporation |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
|
| CX01 | Expiry of patent term |