CN102409353B - Distributed titanium alloy pipeline electrolytic antifouling apparatus - Google Patents
Distributed titanium alloy pipeline electrolytic antifouling apparatus Download PDFInfo
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- CN102409353B CN102409353B CN201110359816XA CN201110359816A CN102409353B CN 102409353 B CN102409353 B CN 102409353B CN 201110359816X A CN201110359816X A CN 201110359816XA CN 201110359816 A CN201110359816 A CN 201110359816A CN 102409353 B CN102409353 B CN 102409353B
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- titanium alloy
- electrolytic
- alloy pipeline
- pipeline
- electrolytic anode
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- Prevention Of Electric Corrosion (AREA)
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Abstract
The invention belongs to the electrochemistry technical field, and relates to a distributed titanium alloy pipeline electrolytic antifouling apparatus. The apparatus comprises direct current source, electrolytic anodes, flange type cathode, cables, switch elements and a titanium alloy pipeline. The positive output terminal of direct current source is provided with the switch element with electrically communication, ten electrolytic anodes are respectively arranged on the titanium alloy pipeline at intervals, the switch elements are respectively and individually connected with the electrolytic anode through cable; a flange type cathode is provided at one end of the titanium alloy pipeline, the flange type cathode enables electric connection with the cathode output terminal of the direct current source; the inner wall of the titanium alloy pipeline is treated, the electrolytic anode capable of electrolyzing seawater for generating chlorine and secondary chlorate anions effective antifouling agent can be prepared; the electrolytic anode is positioned at the connection part of the titanium alloy pipelines, the interval length of electrolyzing anode is determined by maximal flow of water and the current output capability of direct current source. The distributed titanium alloy pipeline electrolytic antifouling apparatus has the advantages of simple integral structure, flexible usage operation, low cost, good antifouling effect, long usage life and wide application scope.
Description
Technical field:
The invention belongs to technical field of electrochemistry, relate to a kind of distributed titanium alloy pipeline electrolytic antifouling apparatus.
Background technology:
Titanium alloy has advantages of lightweight and seawater corrosion resistance and washes away, and can be widely used in the manufacture of various salt water cooling systems and heat-exchange system or other key part, thereby dwindles caliber, increase flow velocity, reaches the effect that reduces weight and mitigate corrosion.When but titanium alloy is used in seawater, marine organisms adhere to very serious, the Direct Electrolysis seawater is manufactured the strong oxidizing property stain control agents such as clorox, chlorine and is prevented sea marine organism pollution, not only safer and economical than traditional interpolation chlorine, and device is also relatively simple.Now widely used electrolysis anti-soil apparatus is first to adopt electrolyzer large-current electric solution seawater, then by the water-in of dense stain control agent filling line, by controlling water outlet stain control agent concentration, guarantees anti-fouling effect.The stain control agent hypochlorite is unstable, in pipeline, can lose due to disproportionation reaction occurring, and loss amount prolongation in time strengthens.Therefore in the seawaterline of long distance, the electric current of system needs larger allowance guarantee anti-fouling effect, and simultaneously, due to the dosing pipe more complicated, the occasion of having relatively high expectations in space and weight is used very large restriction.Taylor's David naval vessels ARDE has been carried out the marine biofouling test of titanium condenser, showing must provide electrolysis antifouling when seawater velocity in the titanium Tube Sheet of Heat Exchanger is less than 1.2m/s, and the chloridized of the heat exchanger of working under high flow velocities is also rational selection.Japanese Unexamined Patent Publication communique (A) 61-120687 provides a kind of seawater pipeline to prevent the method that marine life adheres to, adopt hydrophobic cartridge type electrode Direct Electrolysis seawater antifouling, adopt hydrophobic cartridge type lining to be insulated, cathode material is selected metal pipe-wall or hydrophobic cartridge type negative electrode, but these technology and equipments are all based on adopt large electric current to prepare the legacy system of stain control agent filling line at water-in, and need to introduce in addition the electrode assemblie in the electrolysis anti-soil system, exist many technical problems that need to be improved.
Summary of the invention:
The object of the invention is to overcome the shortcoming that prior art exists, seek a kind of distributed titanium alloy road electrolysis anti-soil technology and device, by the design of distributed electrolysis anti-fouling system device, improve the current efficiency of pipeline electrolysis antifouling, extend system work-ing life; By utilizing the solid support material of titanium alloy pipeline as electrolytic anode itself, can not produce any impact to the function of pipeline, can effectively reduce the antifouling cost with electrolytic anode of titanium alloy pipeline.
To achieve these goals, the distributed titanium alloy pipeline electrolytic antifouling apparatus the present invention relates to is processed titanium alloy pipeline inwall, is prepared into the electrolytic anode that can electrolytic seawater produces chlorine and the effective stain control agent of hypochlorite, electrolytic anode is positioned at titanium alloy pipeline junction, the gap length of electrolytic anode is determined by the peak flow of water and the electric current fan-out capability of direct supply, the agent structure of this distributed titanium alloy pipeline electrolytic antifouling apparatus comprises direct supply, electrolytic anode, the flange form negative electrode, cable, switching element and titanium alloy pipeline, cathode output end on the direct supply of selecting electric connection respectively is equipped with ten switching elements, form ten relatively independent road positive voltage output ends, on the titanium alloy pipeline, compartment divides and is furnished with ten electrolytic anodes respectively, switching element is distinguished the separate connection electrolytic anode by cable, an end place at the titanium alloy pipeline is equipped with the flange form negative electrode, and the flange form negative electrode is electrically connected to the cathode output end of direct supply.
The direct supply the present invention relates to has adjustable electric current fan-out capability, possess output voltage, short-circuit current defencive function, multichannel output, and each road output is independent controlled, the direct supply that includes galvanostat adopts modular design, adopt power semiconductor as switching element, each modular unit is used as a galvanostat; In order to prevent that electrolytic anode lost efficacy, cause groove voltage rise high-amplitude excessive, design the output voltage limit of each modular unit, if exceed the upper limit, automatically stop outward current, avoid burning containing the direct supply of galvanostat; In order to prevent electrolytic anode and the short circuit of flange form negative electrode in the titanium alloy pipeline, guarantee good insulation, add short circuit protection module in the galvanostat modular unit, automatically stop outward current once be short-circuited.
The electrolytic anode the present invention relates to makes by the painting of partial-titanium alloy pipeline segmentation is covered with to active electro catalytic activity material, and the electro catalytic activity material is metal platinum type coating or mixed metal oxide coating, and wherein mixed metal oxide comprises RuO
2, IrO
2, SnO
2, PtO
2, Ta
2o
5in one or more, by ruthenium trichloride (RuCl
33H
2o), chloro-iridic acid (H
2irCl
6xH
2o), dibutyl tin laurate (C
32h
64o
4sn), Platinic chloride (H
2ptCl
6) and tantalum chloride (TaCl
5) thermooxidizing makes; Or adopt after heating the compound that can form the requisite oxygen compound; Coat length on the titanium alloy pipeline is 50cm, is an end of longer titanium alloy pipeline, or an independent titanium alloy pipeline, and the coating that active electrocatalysis material is 10～20 μ m can not exert an influence to water passing capacity and other function of pipeline.
The flange form negative electrode the present invention relates to is used for conducting the required electric current of anti-fouler, there is good conductivity, the flange form negative electrode is made tubular structure, be contained in the flange of titanium alloy pipeline link position after insulating with electrolytic anode, with electrolytic anode, near to reduce volts lost, the material of flange form negative electrode is nickel-base alloy, and solidity to corrosion is better, overpotential of hydrogen evolution is low, with HastelloyC nickelalloy the best.
The present invention compared with prior art, when the fields such as electrolysis anti-soil, electrochemistry sewage disposal and seawater sterilization of titanium alloy pipeline are widely used, due to the solid support material that directly utilizes titanium alloy pipeline itself as electrolytic anode, reduce the cost of titanium alloy pipeline electrolysis anti-soil technology, simplify the installation of conventional electrolysis anti-fouling system, avoid the weightening finish, corrosion and the space problem that use the dosing arm to cause; By the design of distributed electrolysis anti-pollution structure, reduce the requirement of available chlorine action length, thereby reduce the electrolytic current density of electrolytic anode, improve electrolytic efficiency, increase the service life; By modular DC power control, be convenient to understand the working order of electrolysis anti-soil system each several part, maintenance workload reduces; The sea marine organism pollution preventing field that can be widely used in the titanium alloy seawaterline, be particularly useful for the longer occasion of seawaterline, also can promote distributed electrolysis anti-fouling system in the seawaterline of other materials, adopt independently titanium alloy pipeline formula anode, there is the good prospect of promoting the use of; Its one-piece construction is simple, uses flexible operation, and installation cost is low, good antifouling effect, and automatically controlled ability is strong, long service life, applied range.
The accompanying drawing explanation:
Fig. 1 is agent structure principle schematic of the present invention.
Embodiment:
Below by embodiment, also the invention will be further described by reference to the accompanying drawings.
Embodiment:
The distributed titanium alloy pipeline electrolytic antifouling apparatus that the present embodiment relates to is first processed the inwall of titanium alloy pipeline 5, is prepared into the electrolytic anode 4 that can electrolytic seawater produces effective stain control agent (as chlorine, hypochlorite); Electrolytic anode 4 is positioned at the junction of titanium alloy pipeline 5, and the gap length of electrolytic anode 4 is determined by the peak flow of water and the fan-out capability of supply current; Apparatus structure comprises direct supply 1, electrolytic anode 4, flange form negative electrode 6, cable 3, switching element 2 and titanium alloy pipeline 5, cathode output end on the direct supply 1 of selecting electric connection respectively is equipped with ten switching elements 2, form independently ten road positive voltage output ends, on titanium alloy pipeline 5, compartment divides and is furnished with ten electrolytic anodes 4 respectively, and switching element 2 is by cable 3 separate connection electrolytic anodes 4 respectively; An end place at titanium alloy pipeline 5 is equipped with flange form negative electrode 6, and flange form negative electrode 6 is electrically connected to the cathode output end of direct supply 1.
The direct supply 1 of the present embodiment has adjustable electric current fan-out capability and voltage, short-circuit current defencive function, adopt multichannel output and the output of each road independent controlled, the inner direct supply 1 that is equipped with galvanostat of installing adopts modular design and adopts power semiconductor as switching element 2, each module is used as the galvanostat of a simplification, for the inefficacy that prevents electrolytic anode 4 causes groove voltage rise high-amplitude excessive, design the output voltage limit of each module, automatically stop outward current if exceed, avoid the galvanostat module to burn; In order to prevent flange form negative electrode 6 and electrolytic anode 4 short circuits in titanium alloy pipeline 5, guarantee good insulation, add short circuit protection module in the galvanostat module, automatically stop outward current once be short-circuited.
The electrolytic anode 4 of the present embodiment makes by 5 paintings of partial-titanium alloy pipeline are covered with to active active electrocatalysis material, and active electrocatalysis material is metal platinum type coating or mixed metal oxide coating, and wherein mixed metal oxide comprises RuO
2, IrO
2, SnO
2, PtO
2, Ta
2o
5in one or more, by ruthenium trichloride (RuCl
33H
2o), chloro-iridic acid (H
2irCl
6xH
2o), dibutyl tin laurate (C
32h
64o
4sn), Platinic chloride (H
2ptCl
6) and tantalum chloride (TaCl
5) thermooxidizing makes; Or can form the compound of requisite oxygen compound after adopting other heating; The coat length of titanium alloy pipeline section is 50cm, is the end than the long tube section, or an independent pipeline section, because active electrocatalysis material is only the coating of 10～20 μ m, so can not exert an influence to water passing capacity and other function of pipeline.
The flange form negative electrode 6 of the present embodiment is used for conducting the required electric current of anti-fouling system, there is good conductivity, flange form negative electrode 6 is made tubular structure, be contained in the flange of the link position of titanium alloy pipeline 5 after insulating with electrolytic anode 4, close to reduce ohm voltage drop with electrolytic anode 4, the material of flange form negative electrode 6 is selected Hastelloy C nickelalloy.
The direct supply 1 of the present embodiment adopts power semiconductor as switching element 2, and core design is become to controlled constant flow module, makes outward current adjustable continuously from 0～5A, and ten tunnels are controlled respectively; Adopt pipeline section type metal oxide anode coating as electrolytic anode 4, caliber is Φ 50mm, coated length 50cm, and Hastelloy C-276 is as flange form negative electrode 6; In laboratory simulationt test, the galvanostat outward current is 4A, if seawater does not flow, recording effective chlorine density after 10 minutes is 835ppm, using effective antifouling concentration minimum requirements 1ppm as mean concns in pipe, if seawater velocity is 1m/s, consider the factor that clorox decomposes, can protect the about 300m of pipeline, a set of power-supply system guard space is more than 3000m; Because the current density of the electrolytic anode 4 in this system is only 52A/m
2, so be expected to greatly improve the work-ing life of electrolytic anode 4, or suitably increase the Faradaic current amount to adapt to the more requirement of high flow rate, longer guard space.
Claims (3)
1. a distributed titanium alloy pipeline electrolytic antifouling apparatus, it is characterized in that agent structure comprises direct supply, electrolytic anode, flange form negative electrode, cable, switching element and titanium alloy pipeline, cathode output end on direct supply electric connection respectively is equipped with ten switching elements, form ten relatively independent road positive voltage output ends, on the titanium alloy pipeline, compartment divides and is furnished with ten electrolytic anodes respectively, and switching element is distinguished the separate connection electrolytic anode by cable; An end place at the titanium alloy pipeline is equipped with the flange form negative electrode, and the flange form negative electrode is electrically connected to the cathode output end of direct supply; Titanium alloy pipeline inwall is processed, be prepared into the electrolytic anode that can electrolytic seawater produces chlorine and the effective stain control agent of hypochlorite; Electrolytic anode is positioned at titanium alloy pipeline junction, and the gap length of electrolytic anode is determined by the peak flow of water and the electric current fan-out capability of direct supply; Electrolytic anode makes by the painting of partial-titanium alloy pipeline segmentation is covered with to active electro catalytic activity material, and the electro catalytic activity material is metal platinum type coating or mixed metal oxide coating, and wherein mixed metal oxide comprises RuO
2, IrO
2, SnO
2, PtO
2, Ta
2o
5in one or more, by ruthenium trichloride, chloro-iridic acid, dibutyl tin laurate, Platinic chloride and tantalum chloride thermooxidizing, made; Or adopt after heating the compound that can form oxide compound; Coat length on the titanium alloy pipeline is 50cm, is an end of longer titanium alloy pipeline, or an independent titanium alloy pipeline, and the coating that active electrocatalysis material is 10～20 μ m can not exert an influence to water passing capacity and other function of pipeline.
2. distributed titanium alloy pipeline electrolytic antifouling apparatus according to claim 1, it is characterized in that direct supply has adjustable electric current fan-out capability and output voltage, short-circuit current defencive function, multichannel output, and each road output is independent controlled, the direct supply that includes galvanostat adopts modular design, adopt power semiconductor as switching element, each modular unit is used as a galvanostat; In order to prevent that electrolytic anode lost efficacy, cause groove voltage rise high-amplitude excessive, design the output voltage limit of each modular unit, if exceed the upper limit, automatically stop outward current, avoid burning containing the direct supply of galvanostat; In order to prevent electrolytic anode and the short circuit of flange form negative electrode in the titanium alloy pipeline, guarantee good insulation, add short circuit protection module in the galvanostat modular unit, be short-circuited and automatically stop outward current.
3. distributed titanium alloy pipeline electrolytic antifouling apparatus according to claim 1, it is characterized in that the flange form negative electrode is used for conducting the required electric current of anti-fouler, there is conductivity, the flange form negative electrode is made tubular structure, be contained in the flange of titanium alloy pipeline link position after insulating with electrolytic anode, close to reduce volts lost with electrolytic anode, the material of flange form negative electrode is nickel-base alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110359816XA CN102409353B (en) | 2011-11-15 | 2011-11-15 | Distributed titanium alloy pipeline electrolytic antifouling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110359816XA CN102409353B (en) | 2011-11-15 | 2011-11-15 | Distributed titanium alloy pipeline electrolytic antifouling apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102409353A CN102409353A (en) | 2012-04-11 |
| CN102409353B true CN102409353B (en) | 2013-12-11 |
Family
ID=45911686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110359816XA Expired - Fee Related CN102409353B (en) | 2011-11-15 | 2011-11-15 | Distributed titanium alloy pipeline electrolytic antifouling apparatus |
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| CN (1) | CN102409353B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862067B (en) * | 2016-04-27 | 2018-01-16 | 中国船舶重工集团公司第七二五研究所 | The anti-biological of underwater optics window based on electrochemical in-situ analysis chlorine is stained apparatus and method |
| CN106082396A (en) * | 2016-08-09 | 2016-11-09 | 南京福碧源环境技术有限公司 | A kind of softening control valve with chlorine residue function |
| CN106222692B (en) * | 2016-08-22 | 2018-11-13 | 中国科学院海洋研究所 | Anti-fouler and its implementation based on platform piling bar ring type electrolysis anti-soil electrode |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61120687A (en) * | 1984-11-16 | 1986-06-07 | Chiyoda Chem Eng & Constr Co Ltd | Method for preventing fouling of marine organisms to seawater piping |
| CN1888141A (en) * | 2006-05-24 | 2007-01-03 | 中国船舶重工集团公司第七二五研究所 | Sea water pollution resisting oxide anode and its prepn |
| CN101423267B (en) * | 2008-11-02 | 2010-12-08 | 中国船舶重工集团公司第七二五研究所 | Maintenance free long life electrolysis anti-soil apparatus |
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2011
- 2011-11-15 CN CN201110359816XA patent/CN102409353B/en not_active Expired - Fee Related
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| CN102409353A (en) | 2012-04-11 |
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