CN110294083A - Underbody anti-fouling method - Google Patents
Underbody anti-fouling method Download PDFInfo
- Publication number
- CN110294083A CN110294083A CN201910376844.9A CN201910376844A CN110294083A CN 110294083 A CN110294083 A CN 110294083A CN 201910376844 A CN201910376844 A CN 201910376844A CN 110294083 A CN110294083 A CN 110294083A
- Authority
- CN
- China
- Prior art keywords
- conductive
- insulating layer
- hull
- underbody
- seawater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
- B63B59/04—Preventing hull fouling
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
Abstract
The invention discloses a kind of underbody anti-fouling methods, comprising the following steps: S1: brushing insulating layer in the contact portion of hull and seawater；S2: in the insulating layer outer side covering conductive coat, the conductive coat includes the first conductive layer being arranged on the left of the insulating layer, the second conductive layer on the right side of insulating layer is set, S3: by first conductive layer, any one in second conductive layer is as anode, micro-current is passed through to it, the seawater on the conductive coat surface will be electrolysed, the present invention can be improved the resistance to electrochemical corrosion energy of underbody, avoid hull not by the attachment of marine organisms, and present invention environmental protection, energy conservation, marine environment is not influenced substantially, the present invention has a good application prospect.
Description
Technical field:
The present invention relates to antifouling of ship's hull technical fields, and in particular to underbody anti-fouling method.
Background technique:
It has survived in ocean water body environment a large amount of biology, many shoaling layer biologies often have attachment raw habit admittedly,
In addition to the rock in bank or water, the position of ship underwater is also the good place to go of these biological collective's attachments.This biology
There are many type, and in addition to bacterium, diatom, there are also the types such as barnacle, oyster, mussel, coil pipe worm.These marine organisms largely assemble,
So that hull bottom look the same mobile culturing marine products field, as a whole, these aufwuches impact ship
Three aspects are mainly reflected in damage:
First is that increasing hull weight, the roughness of hull bottom is increased, ship resistance is increased, ultimately increases ship boat
Row oil consumption；
Second is that the secretion of aufwuch has certain corrosivity, metal shell and hull bottom surface can be damaged,
To increase the maintenance of the vessel frequency, increase ship maintenance cost, or shorten Ship Life；
Third is that many facilities and equipments of hull bottom, for example, propeller, into structure members such as discharge outlet, stabilizers, be easy by
These biotic influences, or cause blocking to influence Inlet and outlet water efficiency, or block movable part and cause operation sluggish, it is final to influence navigation
Safety.These aufwuches not only bring very big harm to ship, all adversely affect to all kinds of facilities and equipments in water, because
This people is referred to as " marine fouling organism ".
Underbody is often adhered to by all kinds of marine organisms, therefore, to a certain extent reduces the speed of a ship or plane of ship, combustion
The consumption of material increases, and just will increase ship resistance according to length of hull marine growth is calculated, declines the speed of a ship or plane, fuel consumption will increase
40% to 50%, this is that shipbuilding circles and shipping world quite feel intractable big problem and generally use antifouling paint to solve this problem,
And these antifouling paints generally all contain certain toxicity, and can marine organisms be caused with certain harm and cause marine pollution.
This technology mainly using conductive coating prevents marine organisms from adhering to by the electrolysis principle of seawater, is formed a kind of new antifouling
Coating system.
Summary of the invention:
Technical problem to be solved by the present invention lies in providing, a kind of environmentally friendly and good antifouling effect underbody is anti-
Dirty method.
The following technical solution is employed for the technical problems to be solved by the invention to realize: the antifouling side of underbody
Method, comprising the following steps:
S1: insulating layer is brushed in the contact portion of hull and seawater；
S2: in the insulating layer outer side covering conductive coat, which includes be arranged on the left of the insulating layer
One conductive layer, the second conductive layer being arranged on the right side of insulating layer；
S3: using any one in first conductive layer, the second conductive layer as anode, it is passed through micro-current to it, institute
The seawater for stating conductive coat surface will be electrolysed.
Further, the continuous-current plant that control is powered to conductive coat, the direct current are provided on the hull
Source device is powered using gap.
Further, the short-circuit loop of suitable control is set, and ship hull plate is made to be used as cathode always, when film injured vessel
Cathodic protection is constituted when plate is exposed in vitro.
Further, the conductive coat is graphene coated aluminum foil.
The working principle of the invention: covering conductive coat in hull outer insulation, which as anode and is had
Micro-current passes through, and micro- life can be prevented by generating cell reaction so that conductive coat appearance is covered by a level chloranion
Attachment of the marine organisms such as object, algae, shellfish outside hull, however, conductive coat surface hypochlorite ion generated is
Extremely micro, the ion to dissociate from hull surface is reacted and is disappeared with the generation of the other compositions of seawater, thus will not to ocean
It pollutes.
Beneficial effects of the present invention: the present invention can be improved the resistance to electrochemical corrosion energy of underbody, avoid ship
Body is not by the attachment of marine organisms, and present invention environmental protection, energy conservation do not influence marine environment substantially, and the present invention has fine
Application prospect.
Detailed description of the invention:
Fig. 1 is overall structure diagram of the invention；
Figure label: 10, hull；20, insulating layer；30, conductive coat；31, the first conductive layer；32, the second conductive layer；
40, continuous-current plant.
Specific embodiment:
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
It should be noted that when element is by referred to as " being fixed on " another element, it can be on another element or
Person is also possible to that there are elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertically ", " horizontal ", " left side "
" right side " and similar expression for illustrative purposes only, are not meant to be the only embodiment.
Embodiment
As shown in Figure 1, the present invention provides underbody anti-fouling method, comprising the following steps:
S1: insulating layer 20 is brushed in the contact portion of hull 10 and seawater；
S2: in the 20 outer side covering conductive coat 30 of insulating layer, which includes being arranged in the insulating layer 20
First conductive layer 31 in left side, the second conductive layer 32 that 20 right side of insulating layer is set；
S3: using any one in first conductive layer 31, the second conductive layer 32 as anode, micro- electricity is passed through to it
Stream, the seawater on 30 surface of conductive coat will be electrolysed.
The continuous-current plant 40 that control is powered to conductive coat 30, the DC power supply dress are provided on the hull 10
40 are set to be powered using gap.
The conductive coat 30 is graphene coated aluminum foil.
Reaction process when energization:
Ionization reaction:
NaCl===Na++Cl-
H20===H++OH-
Electro-chemical reaction:
2Cl -2e==Cl2↑
2H++ 2e===H2↑
It is chemically reacted in seawater:
Na++ OH===NaOH
2NaOH+Cl2===NaClO+NaCl+H2O
Overall reaction:
NaCl+H2O===NaClO+H2↑
The sodium hypochlorite of generation is able to suppress the microorganism adsorption in seawater in hull surface.
It in the present embodiment, is powered, but without being continuously powered, and adopted to conductive coat by control power supply device
It is powered with gap, and the anode/cathode of conductive coat is changed at regular intervals, has reached comprehensively antifouling purpose,
In addition, conductive coat (anode) and hull (cathode) can pass through seawater (electricity when conductive coat injured vessel external surface is exposed
Solve matter) one circuit of hull is constituted, to realize cathodic protection, electricity used is minimum at this time, to people, hull interior machine
Electric equipment, cargo etc. are without influence, and power consumption is minimum, and then realize dual anti-corrosion.
In this technique, conductive coat is graphene coated aluminum foil, mainly using graphene film as conductive coating
The resistance to electrochemical corrosion energy that aluminium foil is improved with interface separation layer, since the conjugated structure of graphene makes it have very high electronics
Mobility shows good electric conductivity, meanwhile, lamellar structure can also guarantee that applying interlayer has preferable electrochemical contact,
Conductive network is formed, more preferably electrochemical protection is provided.And between carbon atom chemical bond characteristic, graphene is extremely tough and tensile, can
Plasticity is good, can bend to very wide-angle and give up doing exercise, and Young's modulus is about 1100Gpa, breaking strength 130Gpa, than
Taller 100 times of best steel, graphene can also enhance the mechanical properties such as the adhesive force of coating, impact resistance and the screen to medium
Barrier property is covered, graphene is transparent but airtight under visible light, and chemical property is stablized.Tropic sea can especially be significantly improved
The penetrating power of the medium corrosion-resistant (water, chloride ion, oxygen) of military service coating, is being greatly reduced coating thickness in foreign atmospheric environment
While, the anti-rotten service life of coating can be improved.Pass through plasma chemical vapor deposition (atomic layer deposition (ALD)) effect
More preferably, the graphene film that multilayer is directly grown on aluminium foil, using the multi-layer graphene film fitted closely with aluminium foil have from
Son, molecule impervioursness, anion, the solvent molecule etc. in AL3+ and electrolyte that can effectively prevent anode polarization from generating are matched
Position complexing, therefore, graphene coated aluminium foil can significantly improve its resistance to electrochemical corrosion, have better long-term cyclicity.
To sum up, this method has following technical characterstic:
It is antifouling using seawater electrolysis effect progress, due to not containing the anti-fouling agents such as organic substance and heavy metal in film,
Harmful substance will not be dissolved out in seawater, therefore will not be polluted to ocean
Dissolution does not occur in the seawater for the conductive coat of the technical application, can maintain anti-pollution steady in a long-term,
Due to not having stripping material, therefore film is always maintained at smooth state, so as to reduce the resistance of hull traveling, reduces steamer
Fuel consumption
The technology has the cathodic protection performance of external power supply concurrently, and even film damages, hull outer surface exposed part, together
Sample is protected by cathodic protection, prevents from corroding.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of underbody anti-fouling method, which comprises the following steps:
S1: insulating layer (20) are brushed in the contact portion of hull (10) and seawater；
S2: in insulating layer (20) the outer side covering conductive coat (30), which includes being arranged in the insulating layer
(20) the second conductive layer (32) of the first conductive layer (31), setting on the right side of insulating layer (20) on the left of；
S3: using any one in first conductive layer (31), the second conductive layer (32) as anode, micro- electricity is passed through to it
Stream, the seawater on conductive coat (30) surface will be electrolysed.
2. a kind of underbody anti-fouling method according to claim 1, which is characterized in that set on the hull (10)
It is equipped with the continuous-current plant (40) that control is powered to conductive coat (30), the continuous-current plant (40) is logical using gap
Electricity.
3. a kind of underbody anti-fouling method according to claim 1, which is characterized in that the conductive coat (30)
For graphene coated aluminum foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376844.9A CN110294083A (en) | 2019-05-07 | 2019-05-07 | Underbody anti-fouling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376844.9A CN110294083A (en) | 2019-05-07 | 2019-05-07 | Underbody anti-fouling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110294083A true CN110294083A (en) | 2019-10-01 |
Family
ID=68026651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910376844.9A Pending CN110294083A (en) | 2019-05-07 | 2019-05-07 | Underbody anti-fouling method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901847A (en) * | 2019-12-20 | 2020-03-24 | 山东交通学院 | Marine marine organism attachment prevention and control system and monitoring method |
| CN113481511A (en) * | 2021-05-18 | 2021-10-08 | 中国船舶重工集团公司第七二五研究所 | Power-free long-life self-driven antifouling device for ship seawater box body environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901847A (en) * | 2019-12-20 | 2020-03-24 | 山东交通学院 | Marine marine organism attachment prevention and control system and monitoring method |
| CN113481511A (en) * | 2021-05-18 | 2021-10-08 | 中国船舶重工集团公司第七二五研究所 | Power-free long-life self-driven antifouling device for ship seawater box body environment |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191001 |
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