CN101928945A - Impressed current catholic protection device for ship - Google Patents
Impressed current catholic protection device for ship Download PDFInfo
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- CN101928945A CN101928945A CN2010102627777A CN201010262777A CN101928945A CN 101928945 A CN101928945 A CN 101928945A CN 2010102627777 A CN2010102627777 A CN 2010102627777A CN 201010262777 A CN201010262777 A CN 201010262777A CN 101928945 A CN101928945 A CN 101928945A
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Abstract
The application discloses an impressed current catholic protection device for a ship. The device comprises a power supply unit, a reference electrode, a plurality of auxiliary anodes and an automatic grounding controller, wherein the power supply unit comprises an output unit with a plurality of output terminals and a control unit connected with the output unit; the automatic grounding controller is arranged between a propeller axis and a ship body; the auxiliary anodes are arranged on the outside of the ship body and are respectively connected with the output terminals of the output unit; the ship body is connected with the input terminals of the output unit; the reference electrode is arranged on the ship body between each two adjacent auxiliary anodes; and the control unit is used for regulating the output current of the output unit. According to the impressed current catholic protection device for the ship, the automatic ground controller arranged between propeller axis and the ship body is not only capable of detecting the potential difference between the ship body and the propeller axis, but also capable of automatically outputting proper current to remove the potential difference when detecting the potential difference and consequently keeping the potential difference between the ship body and the propeller axis close to zero.
Description
Technical field
The application relates to material antiseptic erosion technical field, particularly relates to a kind of impressed current catholic protection device for ship.
Background technology
As everyone knows, the saltiness of seawater is quite big, is about 3%～3.5%, so the boats and ships that navigate by water for a long time in the Yu Haiyang can be subjected to sea-water corrosion, causes hull to damage.
At present, adopt cathode protection technology that boats and ships are carried out corrosion prevention usually, cathode protection technology can be divided into sacrificial anode and impressed current dual mode.Because the driving current potential of sacrificing cathode resist technology is low; the protective current regulation range is narrow; protection domain is little; and the driving voltage height of impressed current cathodic protection technology; can be neatly in the scope inner control cathodic protection current work output of broad; protection domain is bigger, and also is suitable under more abominable etching condition or in the environment of high resistivity, so the large ocean boats and ships all adopt impressed current catholic protection device as anti-corrosion system usually.
By research to prior art; the contriver finds: existing cathodic protector power cathode is electrically connected to fetch with water screw oar axle by slip ring and carbon brush and realizes that power cathode is electrically connected with water screw; but because resistance is bigger between water screw and hull; and in the water screw rotating process; resistance also can the generating period variation; cause between water screw and hull potential difference bigger, and then water screw and water screw oar axle can't be effectively protected.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of impressed current catholic protection device for ship, to solve the existing problem that cathodic protector can't provide effective galvanic protection to water screw and water screw oar axle that adds, makes that each position protection potential of hull is even.
For achieving the above object, technical scheme is as follows:
A kind of impressed current catholic protection device for ship comprises supply unit, reference electrode, a plurality of supplementary anode and automatic ground connection controller, wherein:
Described supply unit comprises: output unit has a plurality of independently output terminals with the control unit that links to each other with described output unit, described output unit;
Described automatic ground connection controller is arranged between water screw oar axle and the hull, and water screw is electrically connected with the hull zero resistance;
Described a plurality of supplementary anode is arranged on the hull outside, and respectively with described output unit on different output terminal link to each other, described hull links to each other with the input terminus of described output unit, described output unit, hull and each supplementary anode all constitute a loop;
Described reference electrode is arranged on the hull between adjacent two supplementary anodes, is used to detect the electric potential signal of described hull, and described electric potential signal is sent to the control unit of described supply unit;
Described control unit is regulated the outward current of described output unit according to described electric potential signal.
Preferably, this device further comprises: the monitoring display unit, link to each other with water screw with described supply unit, each supplementary anode, hull, and be used to detect and show the outward current of described output unit and supplementary anode and the current potential on described hull and the water screw.
Preferably, be distributed in the number of described supplementary anode in the described hull stern outside greater than the number that is distributed in the described hull midships section outside.
Preferably, described supply unit is the switched attenuator switched-mode potentiostat.
Preferably, the material of described supplementary anode is a ceramic metal oxide.
This impressed current catholic protection device for ship that the embodiment of the present application provides; supply unit has a plurality of independently output terminals; and link to each other with a plurality of supplementary anodes on the hull respectively; between water screw oar axle and hull, also be provided with automatic ground connection controller; this automatic ground connection controller not only can detect the potential difference between hull and the water screw oar axle; and after detecting potential difference; can also export corresponding electric current automatically to eliminate above-mentioned potential difference; keep the potential difference between hull and the water screw oar axle to approach zero, i.e. both current potential approximately equals.So just can make water screw be in the negative potential state that is close with hull, avoid owing to potential difference between water screw and the hull is bigger, and the problem that causes water screw and water screw oar axle to be effectively protected.
In addition; the hull potential signal that reference electrode can also record it sends to the control unit in the supply unit; control unit is regulated the outward current of output unit corresponding output end according to this electric potential signal; so that reference electrode is surveyed the current potential at hull position near controlling valu; can make that the each several part current potential on the hull is approaching relatively; protection potential distributes more even, and hull is protected better.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the impressed current catholic protection device for ship that Fig. 1 provides for the embodiment of the present application;
The structural representation of the supply unit that Fig. 2 provides for the embodiment of the present application.
Embodiment
In order to make those skilled in the art person understand technical scheme among the application better, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all should belong to the scope of the application's protection.
The impressed current catholic protection device for ship structural representation that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1; 4 is hull among the figure; 5 is water screw; this impressed current catholic protection device for ship comprises: supply unit 1, a plurality of supplementary anode 2 (only illustrating two among the figure), reference electrode and automatic ground connection controller 3; hull 4 and water screw 5 constitute current circuit by a plurality of supplementary anodes 2 and supply unit 1; make hull 4 and water screw 5 be low potential, realize protection hull 4 and water screw 5.
Fig. 2 is the structural representation of supply unit.As shown in Figure 2, supply unit 1 comprises: output unit 11 and the control unit 12 that links to each other with output unit, wherein: output unit 11 has a plurality of independently output terminals, can realize the stream outputs of wiring back more.Control unit 12 can be controlled the outward current size of a plurality of independent output terminals in the output unit 11.
A plurality of supplementary anodes 2 are arranged on hull 4 outsides and absorb water the following position of rolling off the production line, and are distributed in the rear portion of hull 4.Because each part material difference on the hull 4, for example: the material of hull is that steel plate and surface of steel plate scribble erosion shield, and the material of water screw 5 then is copper bearing alloy, and does not have erosion shield on the water screw 5 usually.So the required cathodic protection current size in each position is also different on the hull, promptly the electric weight near near the required cathodic protection current in position the water screw 5 is bigger.Therefore a plurality of supplementary anodes 2 do not need to be evenly distributed on hull 4 around, but be distributed in the rear portion of hull 4, and near near the position the water screw 5.To realize providing enough cathodic protection currents, water screw 5 is protected fully to water screw 5.
Automatically ground connection controller 3 is arranged between hull 4 and the water screw 5 oar oar axles, and water screw 5 is implemented to be electrically connected with hull 4.Automatically ground connection controller 3 can detect the potential difference between hull 4 and the water screw 5 oar axles, and after detecting potential difference, automatically ground connection controller 3 can also be exported corresponding electric current automatically to eliminate above-mentioned potential difference, keep the potential difference between hull 4 and the water screw 5 oar oar axles to approach zero, i.e. both current potential approximately equals.So just can make water screw be in the negative potential state that is close with hull, avoid owing to potential difference between water screw and the hull is bigger, and the problem that causes water screw and water screw oar axle to be effectively protected.
Reference electrode is arranged on the hull 4 between adjacent two supplementary anodes 2; be used to detect the electric potential signal on the hull 4; and this electric potential signal is sent to the control unit 12 of supply unit 1; control unit 12 is according to the electric potential signal that receives; regulate the outward current of corresponding output terminal on the output unit 11; so that reference electrode is surveyed the current potential at hull position near controlling valu; can make that the each several part current potential on the hull is approaching relatively; protection potential distributes more even; be that each several part current potential on the hull 4 approaches zero, hull is protected better.
In the embodiment of the present application, the protection potential 0.80 at each position on the hull 4～-0.85V between.Supply unit 1 is preferably switching potentiostat.The material of supplementary anode 2 is preferably ceramic metal oxide, and the ceramic metal oxide anode has high catalytic activity, characteristics that outward current is big, and the rate of consumption in seawater is 1.2mg/Aa, long service life.
This impressed current catholic protection device for ship can also comprise in other embodiment of the application: the monitoring display unit; link to each other with water screw 5 with supply unit 1, each supplementary anode 2, hull 4, be used to detect and the size of the outward current of display power supply device 1 and each supplementary anode 2 and the Potential distribution situation on hull 4 and the water screw 5.
The technical scheme that is provided by above the embodiment of the present application as seen; this impressed current catholic protection device for ship that the embodiment of the present application provides; supply unit has a plurality of independently output terminals; and link to each other with a plurality of supplementary anodes on the hull respectively; between water screw oar axle and hull, also be provided with automatic ground connection controller; this automatic ground connection controller not only can detect the potential difference between hull and the water screw oar axle; and after detecting potential difference; can also export corresponding electric current automatically to eliminate above-mentioned potential difference; keep the potential difference between hull and the water screw oar axle to approach zero, i.e. both current potential approximately equals.So just can make water screw be in the negative potential state that is close with hull, avoid owing to potential difference between water screw and the hull is bigger, and the problem that causes water screw and water screw oar axle to be effectively protected.
In addition; the hull potential signal that reference electrode can also record it sends to the control unit in the supply unit; control unit is regulated the outward current of output unit corresponding output end according to this electric potential signal; so that reference electrode is surveyed the current potential at hull position near controlling valu; can make that the each several part current potential on the hull is approaching relatively; protection potential distributes more even, and hull is protected better.
The above only is the application's a preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be conspicuous to one skilled in the art, and defined herein General Principle can realize under the situation of the spirit or scope that do not break away from the application in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (5)
1. an impressed current catholic protection device for ship is characterized in that, comprises supply unit, reference electrode, a plurality of supplementary anode and automatic ground connection controller, wherein:
Described supply unit comprises: output unit has a plurality of independently output terminals with the control unit that links to each other with described output unit, described output unit;
Described automatic ground connection controller is arranged between water screw oar axle and the hull, and water screw is electrically connected with the hull zero resistance;
Described a plurality of supplementary anode is arranged on the hull outside, and respectively with described output unit on different output terminal link to each other, described hull links to each other with the input terminus of described output unit, described output unit, hull and each supplementary anode all constitute a loop;
Described reference electrode is arranged on the hull between adjacent two supplementary anodes, is used to detect the electric potential signal of described hull, and described electric potential signal is sent to the control unit of described supply unit;
Described control unit is regulated the outward current of described output unit according to described electric potential signal.
2. device according to claim 1, it is characterized in that, further comprise: the monitoring display unit, link to each other with water screw with described supply unit, each supplementary anode, hull, be used to detect and show the outward current of described output unit and supplementary anode and the current potential on described hull and the water screw.
3. device according to claim 1 is characterized in that, the number of described supplementary anode that is distributed in the described hull stern outside is greater than the number that is distributed in the described hull midships section outside.
4. device according to claim 1 is characterized in that, described supply unit is the switched attenuator switched-mode potentiostat.
5. device according to claim 1 is characterized in that, the material of described supplementary anode is a ceramic metal oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102627777A CN101928945B (en) | 2010-08-24 | 2010-08-24 | Impressed current catholic protection device for ship |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102627777A CN101928945B (en) | 2010-08-24 | 2010-08-24 | Impressed current catholic protection device for ship |
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| CN101928945A true CN101928945A (en) | 2010-12-29 |
| CN101928945B CN101928945B (en) | 2012-05-30 |
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| CN2010102627777A Expired - Fee Related CN101928945B (en) | 2010-08-24 | 2010-08-24 | Impressed current catholic protection device for ship |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127769A (en) * | 2011-02-16 | 2011-07-20 | 齐文东 | Impressed current cathodic protection device for marine outboard cooling well |
| 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 |
| CN102508001A (en) * | 2011-10-31 | 2012-06-20 | 中国船舶重工集团公司第七二五研究所 | Current detecting device for ship stern shaft |
| CN103255424A (en) * | 2013-04-28 | 2013-08-21 | 江苏正能石化技术服务有限公司 | Method for protecting cathode of steel gate in freshwater |
| CN104032308A (en) * | 2014-06-24 | 2014-09-10 | 中国船舶重工集团公司第七二五研究所 | Anti-corrosion anti-fouling integrated control method for flow channel system of water-jet propeller |
| CN106086900A (en) * | 2016-07-19 | 2016-11-09 | 武汉理工大学 | Boats and ships impressed current cathodic protection system and intelligent control method thereof |
| CN106990742A (en) * | 2017-06-02 | 2017-07-28 | 天津隆顺技术服务有限公司 | Opposite potential method anti-corrosion protection linkage control device and system |
| CN109355665A (en) * | 2018-10-17 | 2019-02-19 | 大连海事大学 | A kind of ships anticorrosion device based on small-sized solar thermo-electric generation heap |
| CN111593354A (en) * | 2020-05-27 | 2020-08-28 | 重庆交通大学 | Bridge cable impressed current cathodic protection method, system and device |
| CN114450435A (en) * | 2019-10-03 | 2022-05-06 | 沃尔沃遍达公司 | Ocean salinity measuring device and method |
| CN114875413A (en) * | 2022-05-18 | 2022-08-09 | 唐彪 | Hull impressed current cathodic protection device and method capable of adjusting protection potential |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101492821A (en) * | 2009-02-26 | 2009-07-29 | 中国船舶重工集团公司第七二五研究所 | Anticorrosion method employing metallic oxide anode |
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2010
- 2010-08-24 CN CN2010102627777A patent/CN101928945B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101492821A (en) * | 2009-02-26 | 2009-07-29 | 中国船舶重工集团公司第七二五研究所 | Anticorrosion method employing metallic oxide anode |
Non-Patent Citations (1)
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127769A (en) * | 2011-02-16 | 2011-07-20 | 齐文东 | Impressed current cathodic protection device for marine outboard cooling well |
| 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 |
| CN102508001A (en) * | 2011-10-31 | 2012-06-20 | 中国船舶重工集团公司第七二五研究所 | Current detecting device for ship stern shaft |
| CN103255424A (en) * | 2013-04-28 | 2013-08-21 | 江苏正能石化技术服务有限公司 | Method for protecting cathode of steel gate in freshwater |
| CN104032308A (en) * | 2014-06-24 | 2014-09-10 | 中国船舶重工集团公司第七二五研究所 | Anti-corrosion anti-fouling integrated control method for flow channel system of water-jet propeller |
| CN104032308B (en) * | 2014-06-24 | 2016-06-01 | 中国船舶重工集团公司第七二五研究所 | A kind of water-jet propulsor flow passage system anticorrosion and antifouling integrated control method |
| CN106086900B (en) * | 2016-07-19 | 2018-06-19 | 武汉理工大学 | Ship impressed current cathodic protection system and its intelligent control method |
| CN106086900A (en) * | 2016-07-19 | 2016-11-09 | 武汉理工大学 | Boats and ships impressed current cathodic protection system and intelligent control method thereof |
| CN106990742A (en) * | 2017-06-02 | 2017-07-28 | 天津隆顺技术服务有限公司 | Opposite potential method anti-corrosion protection linkage control device and system |
| CN106990742B (en) * | 2017-06-02 | 2023-07-21 | 天津隆顺技术服务有限公司 | Anti-corrosion protection linkage control device and system by reverse potential method |
| CN109355665A (en) * | 2018-10-17 | 2019-02-19 | 大连海事大学 | A kind of ships anticorrosion device based on small-sized solar thermo-electric generation heap |
| CN114450435A (en) * | 2019-10-03 | 2022-05-06 | 沃尔沃遍达公司 | Ocean salinity measuring device and method |
| CN114450435B (en) * | 2019-10-03 | 2024-02-02 | 沃尔沃遍达公司 | Ocean salinity measuring device and method |
| CN111593354A (en) * | 2020-05-27 | 2020-08-28 | 重庆交通大学 | Bridge cable impressed current cathodic protection method, system and device |
| CN114875413A (en) * | 2022-05-18 | 2022-08-09 | 唐彪 | Hull impressed current cathodic protection device and method capable of adjusting protection potential |
| CN114875413B (en) * | 2022-05-18 | 2024-01-09 | 唐彪 | Hull impressed current cathodic protection device and method capable of adjusting protection potential |
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| CN101928945B (en) | 2012-05-30 |
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