CN101967644A - Ship cathode protection analog device - Google Patents
Ship cathode protection analog device Download PDFInfo
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- CN101967644A CN101967644A CN 201010299027 CN201010299027A CN101967644A CN 101967644 A CN101967644 A CN 101967644A CN 201010299027 CN201010299027 CN 201010299027 CN 201010299027 A CN201010299027 A CN 201010299027A CN 101967644 A CN101967644 A CN 101967644A
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Abstract
The invention discloses a ship cathode protection analog device, comprising a scale model, a plurality of activation devices and a plurality of sacrificial anodes, wherein the scale model is a model obtained by scaling a target ship according to a certain proportion, the activation devices are arranged on the scale model, a plurality of conductive through holes are arranged on the external wall of each activation device and a conducting medium is coated on the inner wall of the each activation device; the conductive medium seals the inner spaces of the activation devices, and the inner spaces of the activation devices are filled with sea water of original concentration; and sacrificial anodes are arranged in the inner spaces of the activation devices, are connected with the scale model by lead wires and are contacted with the seawater of original concentration. As the sacrificial anodes are arranged in the activation devices and are always soaked in the sea water of original concentration, the activation rate of the sacrificial anodes is ensured. As a result, prediction deviation of the protective effect of the cathode of the target ship due to difficult activation of the sacrificial anodes in the sea water is avoided.
Description
Technical field
The application relates to ship domain, particularly relates to a kind of cathode protection of ship simulator.
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, the mode that coating combines with galvanic protection is adopted in the boats and ships protection against corrosion usually.Coating promptly applies anticorrosive on hull, avoid hull directly to contact with seawater.Cathode protection technology comprises two kinds of sacrificial anode and impressed currents.For medium and small-scale vessel; because the impressed current protection technology needs the special messenger to safeguard in actual applications; running cost is higher; application is restricted; it is reliable that galvanic anode protection then has the protection effect stability; system installs simple, and one-step installation can reach the requirement of long-term protection, does not need advantage such as special messenger's maintaining and is widely adopted.
Adopt the cathodic protector of sacrificial anode, the distributing position of its sacrificial anode directly influences the protection effect of hull.If the design of sacrificial anode distributing position is unreasonable, may cause the under proteciton or overprotection phenomenon of the local appearance of hull.Hull position under proteciton can't obtain excellent protection, easily by sea-water corrosion; Hydrogen embrittlement then easily can take place in the hull position of overprotection, causes coating stripping, even can cause hull moment to lose intensity, and hydrogen embrittlement fracture takes place.
At present; the scale model method is a kind of common method of cathode protection of ship effect simulation; but by research to prior art; the contriver finds: because scale model is the model of target hull convergent-divergent; specific conductivity in test process medium (seawater) also should be dwindled corresponding proportion; and sacrificial anode activation ratio in the seawater of desalination is difficult, and forward migration can appear in operating potential when test, and the target hull galvanic protection effect that causes predicting usually occurs than large deviation.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of cathode protection of ship simulator, and is difficult owing to sacrificial anode activates in the seawater of desalination with solution, and causes target hull galvanic protection effect prediction is occurred the problem of deviation.
To achieve these goals, technical scheme is as follows:
A kind of cathode protection of ship simulator is characterized in that, comprising: scale model, several activating apparatus and several sacrificial anodes, wherein:
Described scale model is the model behind the target hull convergent-divergent certain proportion;
Described several activating apparatus are arranged on the described scale model, each described activating apparatus all has certain inside space, and be provided with the conductive through hole that several are in communication with the outside described activating apparatus inside on its outer wall, be coated with conducting medium on the wall within it, described conducting medium is filled with the seawater of original concentration with the internal space sealing of described activating apparatus in the described activating apparatus internal space;
Described sacrificial anode is arranged on the inside of described activating apparatus, and contacts with the seawater of described original concentration, and described sacrificial anode is connected with described scale model by lead.
Preferably, described scale model comprises:
Outside surface scribbles the hull of erosion shield;
Run through being arranged on described hull afterbody, be rotatably connected, with the sealing and the screwshaft of electrical isolation mutually between the described hull with described hull;
Be fixed on described screwshaft and be positioned at water screw on one end of described hull outside;
Be arranged on described hull interior, it fixes and can drive the drive-motor that described screwshaft rotates with the end that described screwshaft is positioned at hull interior;
Be connected with described drive-motor, and can receive the signal receiving module of control signal.
Preferably, described drive-motor is connected with described water screw by speed regulation device.
Preferably, the part that described screwshaft is positioned at the hull outside is coated with glass reinforced plastic, and the partial fixing that is positioned at hull interior has several metal slip rings.
Preferably, each described metal slip ring annular periphery is provided with two carbon brush, and an end of described carbon brush all contacts with the metal slip ring, and the other end all is connected with hull by lead.
Preferably, described carbon brush is fixed on the hull by the epoxy back up pad.
Preferably, the blade of described water screw does not have spiral angle.
Preferably, the material at corresponding position is identical on the material of the hull of described scale model, erosion shield, water screw and screwshaft and the target hull.
Preferably, the buoyancy of described scale model, stability and metancenter are high all consistent with the target hull.
The technical scheme that is provided by above the embodiment of the present application as seen; in this cathode protection of ship effect simulation device; be contained with the seawater of original concentration in the space of the seal inside of activating apparatus; sacrificial anode is arranged on the inside of this activating apparatus; and be immersed in all the time in the seawater of original concentration; guaranteed the activation rate of sacrificial anode, sacrificial anode also is connected with the hull of scale model by lead, guaranteed and hull between have good conducting property.Therefore use this cathode protection of ship effect simulation device; when the galvanic protection effect of target hull is simulated; can avoid because sacrificial anode activation in the seawater of desalination is difficult, and cause target hull galvanic protection effect prediction is occurred the problem of deviation.
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 cathode protection of ship simulator that Fig. 1 provides for the embodiment of the present application;
The internal structure synoptic diagram of the scale model that Fig. 2 provides for the embodiment of the present application;
The sectional structure synoptic diagram of the activating apparatus that Fig. 3 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 structural representation of the cathode protection of ship simulator that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1; this cathode protection of ship simulator comprises: scale model 1, several activating apparatus 2 and several sacrificial anode (not shown)s; wherein: scale model 1 is the model after the target hull dwindles by a certain percentage; several activating apparatus 2 are arranged on the scale model outside, and sacrificial anode is arranged in the internal space of activating apparatus 2.
The internal structure synoptic diagram of the scale model that Fig. 2 provides for the embodiment of the present application.
As depicted in figs. 1 and 2, scale model 1 comprises: hull 11, screwshaft 12, water screw 13, drive-motor 14 and signal receiving module 15 wherein: signal receiving module 15 is responsible for receiving external signals and is sent to drive-motor 14, drive-motor 14 is fixed on hull 11 inside, drives water screws 13 (among the figure not this label) by screwshaft 12 and rotates.
The outside surface of hull 11 scribbles erosion shield.Screwshaft 12 runs through and is arranged on the hull afterbody, be rotatably connected by bearing and hull 11, with between the hull 11 mutually the sealing and electrical isolation, screwshaft 12 is positioned at hull 11 exterior portion and carries out anti-corrosive treatment, is positioned in the embodiment of the present application on the water screw 13 of hull 11 outsides to be coated with glass-reinforced plastic material.Water screw 13 is fixed on the end of the screwshaft 12 of hull 11 outsides, and the blade of water screw 13 does not have spiral angle, like this when this scale model is put into water and is experimentized, then can not travel forward, but as you were, avoid also needing the direction of scale model is controlled, make things convenient for experimental implementation.
As shown in Figure 2, drive-motor 14 is arranged on the inside of hull 11, and as the actuating unit of this scale model, it fixes with the end that screwshaft 12 is positioned at hull 11 inside, and can drive screwshaft 12 rotations.In other embodiment of the application, drive-motor can also be connected with screwshaft by speed regulation device, to realize the control to propeller speed.The screwshaft 12 that is positioned at hull 11 inside is provided with several metal rings 16, on hull 11, also be provided with two carbon brush 17 with each metal slip ring 16 corresponding position, carbon brush 17 is fixed on hull 11 inside by insulation support plate 18, and an end contacts with metal slip ring 16, the other end is connected with hull 11 by lead, so just screwshaft 12 and hull 11 can be electrically connected.Angle between in the embodiment of the present application in two carbon brush 17 is preferably 90 degree, and each carbon brush 17 all contacts with metal slip ring 16 under the support of elastic element (not shown), can be so that carbon brush 17 contacts with metal slip ring 16 well, so just guarantee good electrical conductivity between screwshaft 12 and water screw 13 and the hull 11, the Potential distribution that is the three is identical, does not have potential difference.
In the embodiment of the present application; all the material with the corresponding position of target hull is identical for the hull 11 of scale model, the material of erosion shield, water screw and screwshaft on the hull; and the buoyancy of this scale model, stability and metancenter height are also all consistent with the target hull, can guarantee like this hull galvanic protection mimic effect.In addition in the embodiment of the present application, for consistent with the target hull, thus in scale model, be provided with two water screws 13 and two screwshafts 12, and each screwshaft 12 all has independently drive-motor.The material of metal slip ring 16 is preferably copper, the number of metal slip ring 16 is preferably four, the material of insulation support plate 18 is preferably epoxide resin material, those of ordinary skills will be appreciated that, above-mentioned is the application's preferred embodiment all to the selection of material and the selection of quantity, should not constitute the restriction to the application.
Activating apparatus 2 is arranged on the outside of the hull 11 of scale model 1, and is positioned at below the water line of hull 11.As shown in Figure 3, the sectional structure synoptic diagram of the activating apparatus that provides for the embodiment of the present application, the main body of activating apparatus 2 is a rectangular parallelepiped shell 21 among the figure, its inside has certain space, and the wall of activating apparatus 2 is provided with several conductive through holes 22, be coated with one deck conducting medium 23 on the inwall of activating apparatus 2, conducting medium 23 seals the internal space of activating apparatus 2, and charges into the seawater of original concentration in the internal space of activating apparatus 2 sealings.Sacrificial anode 3 is arranged in the activating apparatus 2, and two ends are connected the conducting property of assurance sacrificial anode 3 and hull with hull 11 by lead 4.Sacrificial anode 3 is immersed in the seawater of original concentration all the time in addition, and promptly sacrificial anode 3 contacts with the original seawater of activating apparatus 2 inside all the time, has so just guaranteed the activation rate of sacrificial anode 3.
When using this cathode protection of ship simulator that the galvanic protection effect of target hull is simulated; at first several activating apparatus 2 are installed in the outer side of hull 11 according to existing design; then this scale model 1 is placed in the simulation pond; inject the fixedly seawater of multiple of dilution in the pond; stablize an end after the time; measure the Potential distribution on the hull 11 of this scale model 1; and then can obtain analog result to the galvanic protection effect of target hull; because the sacrificial anode activation rate is higher, so the analog result validity is higher.Can regulate the position of the activating apparatus 2 on this scale model 1 according to analog result in addition,, promptly can the galvanic protection effect of target hull 1 be optimized so that the galvanic protection effect of this scale model is optimized.
The technical scheme that is provided by above the embodiment of the present application as seen; in this cathode protection of ship effect simulation device; be contained with the seawater of original concentration in the space of the seal inside of activating apparatus; sacrificial anode is arranged on the inside of this activating apparatus; and be immersed in all the time in the seawater of original concentration; guaranteed the activation rate of sacrificial anode, sacrificial anode also is connected with the hull of scale model by lead, guaranteed and hull between have good conducting property.Therefore use this cathode protection of ship effect simulation device; when the galvanic protection effect of target hull is simulated; can avoid because sacrificial anode activation in the seawater of desalination is difficult, and cause target hull galvanic protection effect prediction is occurred the problem of deviation.
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 (9)
1. a cathode protection of ship simulator is characterized in that, comprising: scale model, several activating apparatus and several sacrificial anodes, wherein:
Described scale model is the model behind the target hull convergent-divergent certain proportion;
Described several activating apparatus are arranged on the described scale model, each described activating apparatus all has certain inside space, and be provided with the conductive through hole that several are in communication with the outside described activating apparatus inside on its outer wall, be coated with conducting medium on the wall within it, described conducting medium is filled with the seawater of original concentration with the internal space sealing of described activating apparatus in the described activating apparatus internal space;
Described sacrificial anode is arranged on the inside of described activating apparatus, and contacts with the seawater of described original concentration, and described sacrificial anode is connected with described scale model by lead.
2. simulator according to claim 1 is characterized in that, described scale model comprises:
Outside surface scribbles the hull of erosion shield;
Run through being arranged on described hull afterbody, be rotatably connected, with the sealing and the screwshaft of electrical isolation mutually between the described hull with described hull;
Be fixed on described screwshaft and be positioned at water screw on one end of described hull outside;
Be arranged on described hull interior, it fixes and can drive the drive-motor that described screwshaft rotates with the end that described screwshaft is positioned at hull interior;
Be connected with described drive-motor, and can receive the signal receiving module of control signal.
3. simulator according to claim 2 is characterized in that, described drive-motor is connected with described water screw by speed regulation device.
4. simulator according to claim 3 is characterized in that, the part that described screwshaft is positioned at the hull outside is coated with glass reinforced plastic, and the partial fixing that is positioned at hull interior has several metal slip rings.
5. simulator according to claim 4 is characterized in that, each described metal slip ring annular periphery is provided with two carbon brush, and an end of described carbon brush all contacts with the metal slip ring, and the other end all is connected with hull by lead.
6. according to the simulator shown in the claim 5, it is characterized in that described carbon brush is fixed on the hull by the epoxy back up pad.
7. simulator according to claim 1 is characterized in that the blade of described water screw does not have spiral angle.
8. simulator according to claim 1 is characterized in that, the material at corresponding position is identical on the material of the hull of described scale model, erosion shield, water screw and screwshaft and the target hull.
9. simulator according to claim 1 is characterized in that, the buoyancy of described scale model, stability and metancenter are high all consistent with the target hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010299027 CN101967644B (en) | 2010-09-28 | 2010-09-28 | Ship cathode protection analog device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010299027 CN101967644B (en) | 2010-09-28 | 2010-09-28 | Ship cathode protection analog device |
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| CN101967644A true CN101967644A (en) | 2011-02-09 |
| CN101967644B CN101967644B (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010299027 Expired - Fee Related CN101967644B (en) | 2010-09-28 | 2010-09-28 | Ship cathode protection analog device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015140058A (en) * | 2014-01-28 | 2015-08-03 | 株式会社新来島どっく | Fitting structure of anode with hull outside plate |
| CN109229298A (en) * | 2018-09-11 | 2019-01-18 | 镇江麒麟船舶设备有限公司 | A kind of anti-corrosion apparatus for preventing marine organisms for ship |
| CN109338372A (en) * | 2018-12-12 | 2019-02-15 | 青岛双瑞海洋环境工程股份有限公司 | Ocean platform cathodic protection imitative experimental appliance and method |
| CN110261289A (en) * | 2019-06-18 | 2019-09-20 | 中国石油大学(华东) | Cathodic protection Electrochemical Simulation test macro and method under the Service Environment of ocean |
| CN111516835A (en) * | 2020-04-29 | 2020-08-11 | 博雅工道（北京）机器人科技有限公司 | Electromechanical device anticorrosive device and underwater robot under water |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103614729A (en) * | 2013-11-14 | 2014-03-05 | 中国海洋石油总公司 | Testing device and method for cathode protection of indoor ship body |
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| JPS57171671A (en) * | 1981-04-15 | 1982-10-22 | Mitsubishi Electric Corp | Anticorrosive electrode device |
| JPS61199082A (en) * | 1985-03-01 | 1986-09-03 | Japan Carlit Co Ltd:The | Electrolytic cell for preventing corrosion and contamination of sea water line |
| CN2692163Y (en) * | 2003-09-24 | 2005-04-13 | 钢铁研究总院青岛海洋腐蚀研究所 | Buried sacrificial anode metal corrosion prevention device |
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2010
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Patent Citations (3)
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| JPS57171671A (en) * | 1981-04-15 | 1982-10-22 | Mitsubishi Electric Corp | Anticorrosive electrode device |
| JPS61199082A (en) * | 1985-03-01 | 1986-09-03 | Japan Carlit Co Ltd:The | Electrolytic cell for preventing corrosion and contamination of sea water line |
| CN2692163Y (en) * | 2003-09-24 | 2005-04-13 | 钢铁研究总院青岛海洋腐蚀研究所 | Buried sacrificial anode metal corrosion prevention device |
Non-Patent Citations (1)
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| 《腐蚀与防护》 20060630 于楠等 基于缩比模型理论的船舶外加电流阴极保护系统水线下表面电位的研究 276-279 1-9 第27卷, 第6期 2 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015140058A (en) * | 2014-01-28 | 2015-08-03 | 株式会社新来島どっく | Fitting structure of anode with hull outside plate |
| CN109229298A (en) * | 2018-09-11 | 2019-01-18 | 镇江麒麟船舶设备有限公司 | A kind of anti-corrosion apparatus for preventing marine organisms for ship |
| CN109338372A (en) * | 2018-12-12 | 2019-02-15 | 青岛双瑞海洋环境工程股份有限公司 | Ocean platform cathodic protection imitative experimental appliance and method |
| CN110261289A (en) * | 2019-06-18 | 2019-09-20 | 中国石油大学(华东) | Cathodic protection Electrochemical Simulation test macro and method under the Service Environment of ocean |
| CN110261289B (en) * | 2019-06-18 | 2022-07-22 | 中国石油大学(华东) | Cathodic protection electrochemical simulation test system and method under marine service environment |
| CN111516835A (en) * | 2020-04-29 | 2020-08-11 | 博雅工道（北京）机器人科技有限公司 | Electromechanical device anticorrosive device and underwater robot under water |
| CN111516835B (en) * | 2020-04-29 | 2022-02-25 | 博雅工道（北京）机器人科技有限公司 | Electromechanical device anticorrosive device and underwater robot under water |
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| CN101967644B (en) | 2013-06-26 |
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