CN104080953A - Device for cathodic protection of metal wall against corrosion in saline environment - Google Patents

Device for cathodic protection of metal wall against corrosion in saline environment Download PDF

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Publication number
CN104080953A
CN104080953A CN201380007762.8A CN201380007762A CN104080953A CN 104080953 A CN104080953 A CN 104080953A CN 201380007762 A CN201380007762 A CN 201380007762A CN 104080953 A CN104080953 A CN 104080953A
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CN
China
Prior art keywords
anode
wall
compartment
layer
metallic walls
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Pending
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CN201380007762.8A
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Chinese (zh)
Inventor
S.普里根特
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GE Renewable Technologies Wind BV
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Alstom Renewable Technologies Wind BV
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Publication date
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Publication of CN104080953A publication Critical patent/CN104080953A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • C23F2201/00—Type of materials to be protected by cathodic protection
    • 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)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

A device for the cathodic protection of a metal wall (1) against corrosion in a saline environment, comprises an anode and means (4, 5) for connecting the anode to the wall (1), the anode having a higher electrochemical potential than the wall (1). The device is characterized in that the anode is placed in a compartment (6) delimited by a wall permeable to electrons and, optionally, to water. The wall comprises a porous outer layer (7) made from a material selected from polymeric materials, ceramic materials or hydrated inorganic materials; and at least one porous layer (9, 10) having the ability to collect the cations emitted by the anode during the dissolution of same, the material forming the at least one layer being selected from osmotic membranes, active carbon, a cation exchange resin such as a zeolite, a cation-collecting polymer with nanofillers, cation-collecting mineral compounds such as phyllosilicates and inosilicates, cation-retaining nanofiltering semi-permeable organic microporous membranes.

Description

Be used for the galvanic protection of metallic walls in case the device corroding at salt environment
Technical field
The present invention relates to be immersed in the galvanic protection of the facility in salt solution or salt environment.
Background technology
The metal shell of protection ship or metal parts are in order to avoid conventionally provided by sacrificial anode routinely by sea-water corrosion, and this sacrificial anode comprises than the metal of the more negative electricity of protected band.When ship and sacrificial anode thereof are immersed in seawater, polarization occurs, and shell becomes the negative electrode of electrochemical cell, and sacrificial anode becomes the anode of this same battery.Therefore, the metal component of sacrificial anode stands the corrosive nature by seawater, rather than these shells.According to reaction M → M n++ ne -, these components M is released in seawater with cationic form.
The sacrificial anode of the steel part of the submergence of protection ship or any other seagoing vessel or fixation means has aluminium-zinc (2%-6%)-indium (0.01%-0.05%) substantially, or aluminium-gallium (0.01%) or Zn-Al alloy (0.1%-0.5%).The defect of this protection is that it is discharged into the ion that forms the metal of sacrificial anode in ocean environment.Although this defect is in the situation that the ship of Hai Chu is relatively minimum, at anchor when middle when ship, it must be paid attention to more, because the metal of anode will gather in water and in the sea bed of berthing space, wherein, they will be lived in the bio-absorbable there.For the fixation means such as oil rig and offshore wind turbine, problem also occurs.Therefore urgent is the solution that finds efficient and cost-effective; for avoiding poisonous metal to this release of environment as far as possible, especially when the development of legislations of environmental protection can utilize solution forcibly to control in some cases the refuse from sacrificial anode.
The alternative solution of using sacrificial anode as just now described is with needn't manufacture this anode than the material of the more positive electricity of material webs to be protected (it can be steel, cast iron, graphite, metal oxide etc.), but constantly or cyclically electromotive force is put on to it by means of direct current or through the generator of the electric current of rectification.This electromotive force makes anode more corrodible than wall to be protected.This technology should use effort, and especially in the region of inaccessible facility, but it is mainly effective for main facilities.This technology is called as " impressed current cathodic protection " (being abbreviated as ICCP).
Summary of the invention
The object of the invention is to propose solution, the cation release producing for the decomposition of avoiding due to the anode of the device for galvanic protection is to environment.
For this purpose; the present invention relates to a kind of galvanic protection for metallic walls in case the device corroding at salt environment; it comprise anode and for by described anodic bonding in the device of described wall; described anode, in the electrochemical potential place higher than described wall, is characterized in that, described anode is placed in compartment; this compartment is defined by wall; this wall energy is enough in electron-osmosis, and can be permeated by water alternatively, comprising:
Be selected from the porous outer layer of following material: polymer materials, stupalith, or hydrated inorganic material;
And at least one porous layer, it can catch the positively charged ion being sent by anode during anode dissolution, and the material that forms described at least one layer is selected from following: osmotic membrane, activated charcoal, Zeo-karb (such as zeolite), the cation capture polymkeric substance with Nano filling, cation capture mineral compound (such as phyllosilicate and inosilicate), retain the organic microporosity nanofiltration of the semipermeability barrier film of cationic type.
Described wall also can comprise the barrier film of the pollutent that trapping is electronegative.
Anode can be sacrificial anode, and the electrochemical potential nature of this sacrificial anode is higher than the electrochemical potential of metallic walls.
In addition, device can comprise device, can apply the electrochemical potential higher than the electrochemical potential of metallic walls by this device antianode.
For the device in metallic walls can contact with the wall of compartment outside by anodic bonding, and sealably pass the porous wall of compartment.
For by anodic bonding, the device in metallic walls can contact with the metallic walls of compartment interior, and the porous wall of compartment is connected in metallic walls hermetically.
Device can comprise for making anode and metallic walls keep the device of a distance.
It can comprise can catch the cationic a plurality of layer being sent by anode during anode dissolution, and each layer be preferential to be caught and be different from by other layer of preferential those the positively charged ion catching.
As will be appreciated, the present invention includes anode is placed in to compartment, this compartment is defined by a series of porous diaphragms, and this porous diaphragm at least can be by electron-osmosis, or even can also be permeated by water, is arranged in layer.Skin comprises nonmetal porous diaphragm, and this nonmetal porous diaphragm is intended to reduce near the current of anode.Other porous layer or a plurality of layer play the effect of positively charged ion barrier or trap, and this prevents from leaking into environment from compartment due to the positively charged ion that anode dissolution produces.
If barrier film all can be permeated by water, separately the space of the wall of anode and compartment is filled with water naturally.If at least one in barrier film can not be permeated by water but only can be by electron-osmosis, be necessary that, between the installation period of device, with water (being preferably seawater), fill compartment, to obtain good electroconductibility, to make anode shower in electronic conduction medium, and compartment is given to internal pressure and the external pressure of balance with the operation form of compartment.
Accompanying drawing explanation
With reference to the following drawings, when reading description given below, will understand better the present invention:
Fig. 1 schematically shows and carries out the first example of the present invention with longitudinal cross-section;
Fig. 2 schematically shows and carries out the second example of the present invention with longitudinal cross-section.
Embodiment
Fig. 1 shows that metallic walls 1 belongs to the equipment being arranged in ocean environment 2, such as oil rig or wind turbine.But this wall 1 also can be the shell of ship, or the shell of some other seagoing vessels.In a known way, sacrificial anode 3 is arranged near wall 1, and electric connector 4,5 is connected in wall 1.Substantially, in prior art, sacrificial anode 3 builds around single steel junctor, and in this case, the junctor 4,5 of demonstration is actually the two ends of this single junctor.The material that forms sacrificial anode 3 be conventional (for example Al-In, Al-Ga or Zn alloy) for this purpose, and its to select be not property feature of the present invention.
According to the present invention, sacrificial anode 3 is encapsulated in compartment 6, and compartment 6 is defined by cambial one group of barrier film, and surrounds anode 3 with the distance of for example about 1cm.
Outermost layer 7 is porous layers, and this porous layer can be by electron-osmosis, and preferably also can be permeated by water, is intended to reduce the current between the internal space 8 of outside atmosphere and compartment.The material that forms porous layer is selected from polymer materials, stupalith, or hydrated inorganic material.
As the example of this type of material, we can mention the thermoplastic polymer of (non-exhaustive ground) polyethylene or high density polyethylene(HDPE) type, or the porcelain of industrial mullite or aluminum oxide type.
If this material is insulation, it must be porous.In fact, the polarization of anode is corresponding to the foundation of small-sized electrochemical circuit, and only when electronic circulation, this small-sized electrochemical circuit just can work.Ventilate allows to be transmitted electronically in liquid, even if layer 7 insulate.
Other barrier film that this outermost layer 7 has protection anode and a compartment 6 is not subject to the function of waterpower abrasion, and the thickness of outermost layer 7 is roughly about 1 millimeter.It must have applicable wear-resisting attribute and shock strength, and the opposing to the distortion in the situation that there is mobile fluid.
The perviousness of layer 7 is for example about 10 ml/ minutes every 1 cm 2anode surface.
Other layer of the wall of compartment 6 or a plurality of layer are (in the example showing, there are two 9,10 in them) comprise one or more of materials, they are as cationic collector, and the positively charged ion that this cationic collector trapping is sent by sacrificial anode 3, to prevent that them from entering ocean environment 2.Various types of materials can be suitable for this object: osmotic membrane, the gac that is powder or particle form, Zeo-karb (such as zeolite), have the cation capture polymkeric substance, the cation capture mineral compound (such as phyllosilicate and inosilicate) that attract cationic negative Nano filling.This type of material is included in and is usually used in processing water and makes water softening among those of cation capture or exchange.They can utilize the barrier film of activated alumina or the identical compound of function to supplement, and thus, this barrier film traps electronegative pollutent, and such as As and fluorochemical, this electronegative pollutent can reduce barrier film and trap cationic effect.
Also can use the semi-permeable membrane adopting in the electrolytic process of ion-exchange.
The organic microporosity nanofiltration of the semipermeability barrier film that retains cationic type also can be applicable.
The number of plies of cation capture material is arbitrarily, by user, is selected.These layers can be advantageously broad variety, and one or more of in the chemical species that layer for example preferential absorption sacrificial anode 3 probably discharges of various kinds.
For example, we can imagine:
Outer 9 can be less than 1.5 chemical element by radius permeates, and chemical element (such as Ca, K, Mg, the Na) infiltration that can not be greater than 1.5 by radius;
And internal layer 10 can be less than 1.1 chemical element (such as O, Cl, N) by radius, and (so it can be penetrated in the internal space 8 of compartment 6, or leave internal space 8, this does not have defect) infiltration, and chemical element (such as Al, Zn, Ga, the In) infiltration that can not be greater than 1.1 by radius, thereby the principal element that anode 3 can send is cationic form, and this principal element to be discharged in environment be undesirable; The thickness of layer (particularly layer 10) can be according to the size of anode 3, and therefore according to cationic quantity to be trapped, from about 1mm, changes to several mm.
In the situation that define, the whole wall energy of compartment 6 is enough is permeated by water, and water is penetrated in compartment 6, and reaches pressure equilibrium between compartment 6 inside and outside.Therefore compartment 6 for good and all presents its nominal shape, and its wall is without undergoing extruding, and this extruding can cause its fracture.
As already mentioned, the whole wall that limits compartment 6 needn't be permeated by water.It can be only can be by electron-osmosis, but then when installing according to device of the present invention, with the pre-filled compartment 6 of water (preferred seawater), be necessary.
Due to the present invention, therefore the decomposition gradually of sacrificial anode 3 occurs, and the positively charged ion producing due to described decomposition is free from environmental pollution when their tegillums or a plurality of layer 9,10 catch.Layer or a plurality of layer 9,10 must advantageously have the various cationic total volumies of absorption, and enough absorption volumes, so that saturated, before sacrificial anode 3 end-of-lifes, do not occur.
In the example showing in Fig. 1, electric conductor 4,5 contacts with the metallic walls 1 that is arranged in the district of compartment 6 outsides.Therefore be necessary that, guarantee the stopping property through the wall of the compartment 6 in district wherein at conductor 4,5.But as modification, as shown in Fig. 2, the contact between conductor 5,6 and metallic walls 1 can be positioned at compartment 6.Then, the wall of compartment 6 contacts with metallic walls 1 sealing to be protected.
As shown in figure, it is preferred that sacrificial anode 3 does not directly contact with wall 1 to be protected.This is avoided producing short circuit between anode 3 and the district of wall at least corresponding thereto 1.With which, the surperficial major part of wall 1 can be by one and 3 protections of identical anode and in optimum regime.Therefore be preferably provided for making anode 3 and wall 1 to keep the device (not shown in the diagram) of a distance.But in fact, they can comprise junctor 4,5 conventionally, junctor 4,5 is formed from steel substantially, and due to their material and their size, has enough rigidity, so that anode 3 keeps a distance with wall 1.
As modification; the present invention is also applicable to the situation that anode is not sacrificial anode; this is in following meaning: it has the electrochemical potential higher than the electrochemical potential of wall to be protected 1 naturally; but by direct current or through the generator of the electric current of rectification, be placed in this electromotive force place, it is connected in this generator by the conductor through the wall of compartment 6 hermetically.

Claims (8)

1. the galvanic protection for metallic walls (1) is in case the device corroding at salt environment; comprise anode and for by described anodic bonding in the device (4 of described wall (1); 5); described anode, in the electrochemical potential place higher than described wall (1), is characterized in that, described anode is placed in compartment (6); described compartment (6) is defined by wall; described wall energy is enough in electron-osmosis, and can be permeated by water alternatively, comprising:
Be selected from the porous outer layer (7) of following material: polymer materials, stupalith, or hydrated inorganic material;
And at least one porous layer (9,10), it can catch the positively charged ion being sent by described anode during described anode dissolution, and the described material that forms described at least one layer is selected from following: osmotic membrane, activated charcoal, such as the Zeo-karb of zeolite, there is the cation capture polymkeric substance of Nano filling, such as the cation capture mineral compound of phyllosilicate and inosilicate, retain the organic microporosity nanofiltration of the semipermeability barrier film of cationic type.
2. device according to claim 1, is characterized in that, described wall (1) also comprises the barrier film of the pollutent that trapping is electronegative.
3. device according to claim 1 and 2, is characterized in that, described anode is sacrificial anode (3), and the electrochemical potential nature of described sacrificial anode (3) is higher than the electrochemical potential of described metallic walls (1).
4. device according to claim 1 and 2, is characterized in that, it comprises for described anode being applied to the device of the electrochemical potential of the electrochemical potential that is greater than described metallic walls (1).
5. according to the device described in claim 1 to 4, it is characterized in that, be used for described anodic bonding in the described device (4 of described metallic walls (1), 5) the described wall outside with described compartment (6) contacts, and they pass the porous wall of described compartment (6) hermetically.
6. according to the device described in claim 1 to 4, it is characterized in that, be used for described anodic bonding in the described device (4 of described metallic walls (1), 5) the described metallic walls (1) inner with described compartment (6) contacts, and the porous wall of described compartment (6) is connected in described metallic walls (1) hermetically.
7. according to the device described in claim 1 to 6, it is characterized in that, it comprises for making described anode and described metallic walls (1) keep the device of a distance.
8. according to the device described in claim 1 to 7, it is characterized in that, it comprises can catch the described cationic a plurality of layers (9 that sent by described anode during described anode dissolution, 10), each layer (9,10) is preferential to be caught and is different from by other layer of preferential those the positively charged ion catching.
CN201380007762.8A 2012-02-01 2013-01-31 Device for cathodic protection of metal wall against corrosion in saline environment Pending CN104080953A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1250946A FR2986241B1 (en) 2012-02-01 2012-02-01 DEVICE FOR THE CATHODIC PROTECTION OF A METALLIC WALL AGAINST CORROSION IN A SALINE MEDIUM
FR1250946 2012-02-01
PCT/EP2013/051837 WO2013113777A1 (en) 2012-02-01 2013-01-31 Device for the cathodic protection of a metal wall against corrosion in a saline environment

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Publication Number Publication Date
CN104080953A true CN104080953A (en) 2014-10-01

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US (1) US20140332373A1 (en)
EP (1) EP2809830A1 (en)
JP (1) JP2015505583A (en)
KR (1) KR20140122739A (en)
CN (1) CN104080953A (en)
AU (1) AU2013214235B2 (en)
CA (1) CA2862349A1 (en)
CL (1) CL2014002004A1 (en)
FR (1) FR2986241B1 (en)
WO (1) WO2013113777A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106992280A (en) * 2017-04-12 2017-07-28 北京新能源汽车股份有限公司 The battery system and electric automobile of a kind of electric automobile
CN111534822A (en) * 2020-05-11 2020-08-14 中国船舶科学研究中心 Deep sea equipment cathode protection device based on biological anode

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103643238B (en) * 2013-11-27 2016-01-06 中交天津港湾工程研究院有限公司 A kind ofly ensure the device that sacrificial anode normally runs
CN103668221A (en) * 2013-12-16 2014-03-26 国家电网公司 Transformer substation grounding grid corrosion prevention protection construction method
JP7210539B2 (en) * 2017-08-04 2023-01-23 オルステッド・ウィンド・パワー・エー／エス Cathodic protection for offshore wind turbine steel support structures

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505826A (en) * 1994-11-30 1996-04-09 Haglin; Patrick G. Hydrophilic anode corrosion control system
DE102008037597A1 (en) * 2008-11-27 2010-06-02 Webasto Ag Mobile absorption refrigeration system for air-conditioning interior area of land vehicles, comprises a sacrificial anode, a desorber for evaporating coolant of a coolant-absorption agent-mixture, and a cation exchanger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839341B1 (en) * 1968-04-19 1973-11-22
JPS4839701B1 (en) * 1969-08-27 1973-11-26
JPS52117247A (en) * 1976-03-29 1977-10-01 Tokyo Keiki Kk Anode box for external electric power anticorrosion system
JPS62247088A (en) * 1986-04-18 1987-10-28 Matsushita Electric Ind Co Ltd Water feeding device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505826A (en) * 1994-11-30 1996-04-09 Haglin; Patrick G. Hydrophilic anode corrosion control system
DE102008037597A1 (en) * 2008-11-27 2010-06-02 Webasto Ag Mobile absorption refrigeration system for air-conditioning interior area of land vehicles, comprises a sacrificial anode, a desorber for evaporating coolant of a coolant-absorption agent-mixture, and a cation exchanger

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106992280A (en) * 2017-04-12 2017-07-28 北京新能源汽车股份有限公司 The battery system and electric automobile of a kind of electric automobile
CN111534822A (en) * 2020-05-11 2020-08-14 中国船舶科学研究中心 Deep sea equipment cathode protection device based on biological anode
CN111534822B (en) * 2020-05-11 2022-04-26 中国船舶科学研究中心 Deep sea equipment cathode protection device based on biological anode

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Publication number Publication date
KR20140122739A (en) 2014-10-20
EP2809830A1 (en) 2014-12-10
CL2014002004A1 (en) 2014-11-21
AU2013214235A1 (en) 2014-08-28
FR2986241B1 (en) 2014-02-21
JP2015505583A (en) 2015-02-23
CA2862349A1 (en) 2013-08-08
AU2013214235B2 (en) 2015-08-20
US20140332373A1 (en) 2014-11-13
WO2013113777A1 (en) 2013-08-08
FR2986241A1 (en) 2013-08-02

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Application publication date: 20141001