CN114774947A - Electrolytic antifouling device for ocean steel structure - Google Patents
Electrolytic antifouling device for ocean steel structure Download PDFInfo
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- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
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Abstract
The invention provides an electrolytic antifouling device for an ocean steel structure, which comprises a power cabinet, a flexible rope-shaped electrode and an ocean steel structure, wherein the rope-shaped electrode is wound on the ocean steel structure; the rope-shaped electrode comprises an anode, a cathode and a hollow shell, the anode and the cathode are arranged in the shell at intervals, the anode and the cathode are oppositely arranged in the shell, the anode and the cathode are both electrically connected with the power cabinet, and the shell is provided with a through hole for seawater to enter the shell; the rope-shaped electrode is used for electrolyzing seawater to generate effective chlorine in the seawater near the marine steel structure, so that the marine steel structure is prevented from fouling.
Description
Technical Field
The invention relates to the technical field of marine equipment antifouling, in particular to an electrolytic antifouling device for a marine steel structure.
Background
The steel structure foundation of the offshore wind farm has the adhesion corrosion of various marine organisms including marine animals, shellfish, algae, and the like. The safe operation and the service life of the offshore wind turbine generator are greatly influenced, so that the construction of an offshore wind farm provides higher requirements for the antifouling technology of the basic steel structure. The growth of marine organisms on the steel structure of the wind power plant is serious, the damage of a coating is large, the field repair difficulty is large, and the quality is difficult to ensure; meanwhile, the damage of the coating causes the problems of large consumption of the sacrificial anode block and large positive shift of the cathodic protection potential, and the requirement on the basic service life of the offshore wind turbine cannot be met.
The ocean platform is also a typical steel material structure, and is very easy to corrode and destroy to cause sudden accidents. The biological fouling increases hydrodynamic load of external seawater on the platform, damages the surface appearance of the pile leg, greatly reduces the ultimate bearing capacity in local corrosion forms such as pitting corrosion and pits, seriously influences the working condition of the ocean platform, and is considered as an important reason for the failure of the ocean platform.
For a steel structure immersed in seawater, the commonly used anti-fouling technology is as follows:
physical clearing means: the method is characterized in that the fouling organisms on the surface of the pile leg are removed by means of external force and a mechanical device. People need to regularly sewage for antifouling treatment or operate the sewage through remote equipment, the effect is obvious, but the pollution can not be prevented, only the post-treatment of the pollution problem is realized, and the treatment cost is high each time.
Coating antifouling technology: the coating can be quickly damaged by biological induced corrosion caused by marine biofouling, and large-area local corrosion is caused on the surface of the pile leg of the marine platform. Since a large amount of toxic substance paints have been used in the past to cause marine pollution, nontoxic paints, such as low surface energy paints, paints containing bio-component antifouling agents, and the like, are being actively developed at home and abroad.
Electrolytic antifouling technology: mainly comprises an electrolytic seawater antifouling technology and an electrolytic copper-aluminum antifouling technology. Electrolyzing seawater to produce sodium hypochlorite (NaClO), hypochlorous acid (HClO), chlorine (Cl)2) And the effective chlorine kills marine life. Can kill various marine organisms, and has wide treatment amount range and no pollution. The existing electrolytic seawater antifouling device is relatively fixed and cannot be applied to steel pile antifouling of multi-structure or irregular structure. The electrolytic copper-aluminum antifouling technology is not suitable for large treatment capacity and large floor area and can be used for treating slime organisms and plant shadowsSmall noise and high requirement on water quality.
Disclosure of Invention
The invention aims to provide an electrolytic antifouling device for a marine steel structure, which aims to solve or at least partially solve the defects of the background technology.
The invention provides an electrolytic antifouling device for an ocean steel structure, which comprises a power cabinet, a flexible rope-shaped electrode and an ocean steel structure, wherein the rope-shaped electrode is wound on the ocean steel structure; the rope-shaped electrode comprises an anode, a cathode and a hollow shell, the anode and the cathode are arranged in the shell at intervals, the anode and the cathode are oppositely arranged in the shell, the anode and the cathode are both electrically connected with the power cabinet, and the shell is provided with a through hole for seawater to enter the shell; the rope-shaped electrode is used for electrolyzing the seawater near the marine steel structure to generate effective chlorine in the seawater near the marine steel structure, so that the marine steel structure is prevented from fouling.
Further, rope electrode is the heliciform around locating on the ocean steel construction, the distance between two adjacent spirals of rope electrode is 30 ~ 80 cm.
Furthermore, the effective chlorine concentration of seawater in a space range of 10-15cm from the horizontal outside of the ocean steel structure is 0.2-0.5 ppm.
Further, the anode and the cathode are respectively electrically connected with the anode and the cathode of the power supply cabinet through leads.
Further, the power supply cabinet supplies power to the rope-shaped electrodes periodically and discontinuously.
Furthermore, the shell is a flexible plastic shell, and the anode and the cathode are both made of flexible titanium plates.
Further, the anode and the cathode are both embedded and fixed in the shell.
Further, the width of the anode and the cathode are equal, and the ratio of the width of the anode to the distance between the anode and the cathode is 1: 1-2: 1; the thickness of the anode and the thickness of the cathode are both 0.3-0.5 mm.
Furthermore, the aperture of the through hole is 0.5-2 mm.
Furthermore, the quantity of through-hole is a plurality of, and is a plurality of through-hole evenly distributed set up in on the shell.
Further, the ocean steel structure electrolysis anti-fouling device further comprises a steel ring, and the rope-shaped electrode is fixed on the ocean steel structure through the steel ring.
Further, the ocean steel construction includes that at least part sets up in the piling bar of sea water, rope form electrode winding is located on the piling bar.
Further, the ocean steel construction still includes the platform, the platform set up in the piling bar top and with the piling bar is connected, the power cabinet set up in on the platform.
According to the electrolytic antifouling device for the marine steel structure, the flexible rope-shaped electrode is wound on the marine steel structure, and the rope-shaped electrode is used for electrolyzing seawater to generate effective chlorine, so that effective antifouling is performed on the marine steel structure. The flexible rope-shaped electrode has strong plasticity of the flexible structure and can be bent randomly, so the flexible rope-shaped electrode can be suitable for ocean steel structures with any shapes, the application range is wide, and each steel structure can be effectively prevented from fouling. Meanwhile, because the anode and the cathode of the rope-shaped electrode are both arranged in the shell, the marine garbage or seaweed attached to the electrode pole plate can be prevented from polluting the electrode pole plate to influence the chlorine production efficiency, and meanwhile, the service lives of the anode and the cathode can be prolonged.
This antifouling device of ocean steel construction electrolysis simple structure, area is little, and degree of automation is high, and the treatment range is big, can be according to the circular telegram cycle of marine organism's pollution condition regulation power cabinet, has stronger inhibition growth, exterminates the effect to marine stained living beings, and the sodium hypochlorite of production can not lead to the bacterium drug resistance, and is pollution-free to the environment.
Drawings
FIG. 1 is a schematic structural diagram of an electrolytic antifouling device for a marine steel structure in an embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of the string electrode of fig. 1.
FIG. 3 is a schematic structural diagram of an electrolytic antifouling device for a marine steel structure in another embodiment of the invention.
Fig. 4 is a schematic cross-sectional view of a string electrode according to another embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
As shown in fig. 1 and fig. 2, the marine steel structure electrolytic antifouling device according to the embodiment of the present invention includes a power supply cabinet 15, a flexible rope electrode 14, and a marine steel structure 100, wherein the rope electrode 14 is wound around the marine steel structure 100, and the rope electrode 14 is at least partially immersed in seawater. The rope-shaped electrode 14 comprises an anode 143, a cathode 144 and a hollow shell 141, the anode 143 and the cathode 144 are arranged in the shell 141 at intervals, the anode 143 and the cathode 144 are oppositely arranged in the shell 141, the anode 143 and the cathode 144 are both electrically connected with the power cabinet 15, and the shell 141 is provided with a through hole 142 for seawater to enter the shell 141. The rope electrode 14 is used for electrolyzing seawater near the marine steel structure 100 to generate effective chlorine (including sodium hypochlorite (NaClO), hypochlorous acid (HClO), chlorine gas (Cl) of uniform concentration in the seawater near the marine steel structure 1002) Etc.) to kill marine microorganisms near the marine steel structure 100, thereby performing real-time antifouling on the marine steel structure 100.
Specifically, during operation, seawater enters the inner cavity of the shell 141 through the through hole 142 on the shell 141 and reaches between the anode 143 and the cathode 144, the power cabinet 15 is used for supplying power to the rope-shaped electrode 14, so that the rope-shaped electrode 14 generates effective chlorine through electrolyzing seawater, and the generated effective chlorine flows out of the shell 141 through the through hole 142 on the shell 141 and is dispersed near and on the surface of the marine steel structure 100, thereby performing real-time antifouling on the marine steel structure 100.
Specifically, the electrolytic antifouling device for marine steel structure of the present embodiment winds the flexible rope-shaped electrode 14 around the marine steel structure 100, and electrolyzes seawater by the rope-shaped electrode 14 to generate effective chlorine, thereby effectively preventing fouling of the marine steel structure 100. The flexible rope-shaped electrode 14 has strong plasticity of the flexible structure and can be bent at will, so that the flexible rope-shaped electrode 14 can be suitable for the ocean steel structure 100 with any shape, the application range is wide, and the steel structure at each position can be effectively prevented from fouling. Meanwhile, because the anode 143 and the cathode 144 of the rope electrode 14 are both arranged in the casing 141, the marine garbage or the seaweed can be prevented from attaching on the electrode plates (the anode 143 and the cathode 144) to pollute the electrode plates and influence the chlorine generating efficiency, and meanwhile, the service lives of the anode 143 and the cathode 144 can be prolonged. This antifouling device of ocean steel construction electrolysis simple structure, area is little, and degree of automation is high, and the treatment range is big, can be according to the circular telegram cycle of marine organism's pollution condition regulation power cabinet, has stronger inhibition growth, exterminates the effect to marine stained living beings, and the sodium hypochlorite of production can not lead to the bacterium drug resistance, and is pollution-free to the environment.
Further, as shown in fig. 1, in the present embodiment, the rope-shaped electrode 14 is spirally wound on the marine steel structure 100, and the distance a between two adjacent spirals of the rope-shaped electrode 14 is 30 to 80cm, so that the effective chlorine concentration of the seawater in the space range of 10 to 15cm horizontally outward of the marine steel structure 100 is maintained at 0.2 to 0.5 ppm.
Further, as shown in fig. 1 and fig. 2, in the present embodiment, the power supply cabinet 15 is an adjustable power supply, and the power supply cabinet 15 is used for supplying and adjusting the dc power to the rope electrode 14. The anode 143 and the cathode 144 of the rope-shaped electrode 14 are respectively electrically connected with the positive pole and the negative pole of the power cabinet 15 through the conducting wires 16, and each rope-shaped electrode 14 is provided with an independent power supply and return power supply.
Specifically, the power supply cabinet 15 can be provided with the number of switches according to the number of the steel piles 12, and a rectifier is arranged in the power supply cabinet 15 to convert alternating current into direct current to be supplied to the rope-shaped electrodes 14 for electrolysis. The power-on period and the electrolysis time of the power cabinet 15 can be adjusted according to the pollution condition of marine organisms.
Further, in the embodiment, the power supply cabinet 15 supplies power to the rope-shaped electrode 14 periodically and discontinuously, and the time of each electrolysis of the rope-shaped electrode 14 is 5-10 s. The power supply is interrupted periodically according to the pollution condition of marine organisms, so that the effective chlorine concentration can be ensured to achieve the sufficient killing effect, and the power consumption can be saved.
Further, as shown in fig. 2, in the present embodiment, the casing 141 is a flexible plastic casing, the casing 141 is a circular structure, the diameter is 5-15mm, and the cross section of the end of the casing 141 is an open form, so as to facilitate the falling off of the scaling substances and the later cleaning, and prevent the scaling substances from being accumulated on the rope-shaped electrode 14. The service life of the rope-shaped electrode 14 is more than or equal to 10 years. The current of the single rope electrode 14 is between 100-300A, the length is 6-20m, and the number of the rope electrodes 14 on the single steel pile 12 can be determined according to the length of the steel pile 12. As shown in fig. 4, as another embodiment, the housing 141 has a square structure (of course, the housing 141 may have other shapes).
Further, in the present embodiment, the material of the casing 141 may be transparent or opaque PVC, PP or PE soft plastic material.
Further, as shown in fig. 2, in this embodiment, the anode 143 and the cathode 144 are made of flexible titanium plates, and both the anode 143 and the cathode 144 are embedded and fixed in the housing 141, so as to ensure close contact between the plates and the housing 141. The lengths of the anode 143 and the cathode 144 are determined according to the length of the string-shaped electrode 14. The widths of the anode 143 and the cathode 144 are equal, and the ratio of the width of the anode 143 (or the width of the cathode 144) to the distance between the anode 143 and the cathode 144 is 1: 1-2: 1; the thickness of the anode 143 and the cathode 144 are both 0.3 to 0.5 mm. The current density at the anode 143 and cathode 144 was 1500A/m2-2000A/m2And the current efficiency is more than or equal to 96 percent.
Further, as shown in fig. 2, in the present embodiment, the number of the through holes 142 is plural, and the plural through holes 142 are uniformly distributed on the casing 141 along the axial direction and the circumferential direction of the casing 141, so that the available chlorine generated by electrolysis can be uniformly dispersed around the marine steel structure 100. The aperture of the through hole 142 is 0.5 to 2mm, so that seawater and available chlorine can smoothly enter and exit the housing 141, and marine waste or algae can be prevented from entering the housing 141.
Further, as shown in fig. 1, in this embodiment, the marine steel structure electrolysis antifouling device further includes a steel ring 13, the steel ring 13 is disposed around the marine steel structure 100, and the rope-shaped electrode 14 is fixed on the marine steel structure 100 through the steel ring 13, so as to prevent the rope-shaped electrode 14 from falling off from the marine steel structure 100, and meanwhile, the steel ring 13 enables the rope-shaped electrode 14 to be closely attached to the marine steel structure 100 to be fixed in a surrounding manner, so that the effective chlorine is sufficiently dispersed around the marine steel structure 100. The rise and fall of the sea water tide level do not affect the electrolysis of the rope-shaped electrode 14, and effective chlorine antifouling can be generated around the marine steel structure 100 at the part in contact with the sea water.
Further, as shown in fig. 1, in the present embodiment, the marine steel structure 100 is a marine platform structure. The marine steel structure 100 includes a steel pile 12 at least partially disposed in seawater, and a rope electrode 14 wound on the steel pile 12. The marine steel structure 100 further comprises a marine platform 111, the marine platform 111 is arranged above the steel pile 12 and connected with the steel pile 12, and the power supply cabinet 15 is arranged on the marine platform 111.
The application method of the electrolytic antifouling device with the marine steel structure of the embodiment of the invention can be as follows:
1. preparing a flexible rope-shaped electrode 14 capable of generating effective chlorine to kill marine organisms, and connecting the flexible rope-shaped electrode with a power supply cabinet 15 through a lead 16;
2. the rope-shaped electrode 14 is wound on the steel pile 12 after calculation and adjustment, and the rope-shaped electrode 14 is fixed by using the steel ring 13, so that the rope-shaped electrode 14 is wound and fixed close to the steel pile 12;
3. the electric control cabinet 15 is used for providing direct current to the rope-shaped electrodes 14, the rope-shaped electrodes 14 electrolyze seawater to generate effective chlorine with certain concentration, and the effective chlorine is dispersed around and on the surface of the steel piles 12 to kill microorganisms;
4. according to the pollution condition of marine life, the electrifying period and the electrolysis time of the power supply cabinet 15 are adjusted, so that the effective chlorine concentration is kept at 0.2-0.5ppm in the spatial range of 10-15cm from the horizontal outside of the steel pile 12.
The electrolytic antifouling device for the marine steel structure provided by the embodiment of the invention has the advantages that:
1. the flexible rope-shaped electrode 14 is wound on the ocean steel structure 100, and the rope-shaped electrode 14 is used for electrolyzing seawater to generate effective chlorine, so that the ocean steel structure 100 is effectively prevented from being polluted. The flexible rope-shaped electrode 14 has strong plasticity of the flexible structure and can be bent at will, so that the flexible rope-shaped electrode 14 can be suitable for the ocean steel structure 100 with any shape, the application range is wide, and each steel structure can be effectively prevented from fouling.
2. Because the anode 143 and the cathode 144 of the rope electrode 14 are both arranged in the casing 141, the marine garbage or the seaweed can be prevented from attaching on the electrode plates (the anode 143 and the cathode 144) to pollute the electrode plates and influence the chlorine generating efficiency, and meanwhile, the service lives of the anode 143 and the cathode 144 can be prolonged.
3. The shell 141 is provided with a plurality of through holes 142 with small apertures, so that the effective chlorine generated by electrolysis can be uniformly dispersed around the marine steel structure 100, and simultaneously, marine garbage or seaweed can be prevented from entering the shell 141.
4. This antifouling device of ocean steel construction electrolysis simple structure, area is little, and degree of automation is high, and the treatment range is big, can adjust the circular telegram cycle of power cabinet according to marine organism's pollution condition, has stronger inhibition growth, killing effect to marine fouling organism, and the sodium hypochlorite of production can not lead to the bacterium drug resistance, and is pollution-free to the environment.
Example one:
as shown in fig. 1, the marine steel structure 100 is a marine platform structure, and the marine steel structure 100 includes a marine platform 111 and a steel pile 12. The diameter of each steel pile 12 is 0.4 meter, the length of each steel pile 12 is 9m, the height of a seawater immersion area is 7m, the position of each steel ring 13 is adjusted to enable the distance a between the rope-shaped electrode 14 and the ring to be 50cm, a square rope-shaped electrode 14 is used, the length of a single rope-shaped electrode 14 is 10m, and two rope-shaped electrodes 14 are wound on each steel pile 12.
The rope-shaped electrode 14 is composed of an anode 143, a cathode 144 and a flexible plastic shell 141. The plate current density of the anode 143 and the cathode 144 in the rope-shaped electrode 14 is 1500A/m2Side length of 10mm, the width of the polar plate is 6mm, the distance between the polar plates is 5mm, the thickness of the polar plates of the anode 143 and the cathode 144 is 0.3mm, the anode 143 is a flexible titanium sheet with ruthenium iridium oxide coated on the surface, the cathode 144 is a flexible titanium sheet, the current efficiency is more than or equal to 96%, and the polar plates are embedded in the flexible plastic shell 141. The length of a single rope electrode 14 is 10 m. The flexible plastic shell 141 is made of transparent PP (polypropylene) flexible plastic, and through holes 142 with the diameter of 1mm are distributed around the flexible plastic shell 141.
The power supply cabinet 15 is used for supplying and adjusting direct current to the rope-shaped electrodes 14 for electrolysis, the adjustable current of a single rope-shaped electrode 14 is 180A, the electrifying cycle is set to be 10s (namely, the interval time between two times of electrolysis is 10s), and the time length of each electrolysis is 5 s.
Firstly, the rope-shaped electrode 14 is closely attached to and fixed around the steel pile 12 through the steel ring 13, the flexible rope-shaped electrode 14 is connected with the power supply cabinet 15 through the lead 16, then the current of the power supply cabinet 15 is set to be 180A, the electrifying period is set to be 10s, the time length of each electrolysis is set to be 5s, the power supply cabinet 15 is started to electrolyze seawater to generate effective chlorine with a certain concentration, and the effective chlorine is dispersed on the surface of the steel pile 12 to kill marine organisms. During electrolysis, seawater enters the rope electrode 14 through the through holes 142 to be electrolyzed to generate sodium chlorate (NaClO), hypochlorous acid (HClO) and chlorine (Cl)2) Etc. effective chlorine is dispersed around the steel pile 12 through the through-holes 142. Sampling in a space 10-15cm away from the steel pile 22 horizontally to test the effective chlorine concentration: samples were taken three times every 10 seconds at the upper, middle and lower positions of the submerged area of the steel pile 12, and the available chlorine content was measured by iodometry, and the results are shown in the following table. Experiments show that the electrolytic antifouling device for the marine steel structure can keep the effective chlorine concentration between 0.2 ppm and 0.5ppm for a long time and has good antifouling effect.
| Location of submerged area | First test | Second test | Third test |
| Upper part of | 0.31ppm | 0.40ppm | 0.51ppm |
| In (1) | 0.23ppm | 0.33ppm | 0.43ppm |
| Lower part | 0.25ppm | 0.43ppm | 0.41ppm |
Example two:
as shown in fig. 3, the marine steel structure 100 is a shallow marine wind power generation structure, and the marine steel structure 100 includes a wind power device 112 and a steel pile 12. The diameter of a three-leg steel pile 12 (only two legs are shown in the figure) is 0.3m on average, the height of a seawater immersion area is 3m, the position of a steel ring 13 is adjusted to enable the distance a between the ring and the ring of a rope-shaped electrode 14 to be 50cm, a circular rope-shaped electrode 14 is used, the length of a single rope-shaped electrode 14 is 10m, and one rope-shaped electrode 14 is wound on each leg (including half of the steel structure between the steel pile legs) of the steel pile 12.
The rope-shaped electrode 14 is composed of an anode 143, a cathode 144 and a flexible plastic shell 141. The plate current density of the anode 143 and the cathode 144 in the rope-shaped electrode 14 is 1500A/m2The side length is 12mm, the plate width is 7mm, the plate distance is 5mm, the plate thickness of the anode 143 and the cathode 144 is 0.3mm, the anode 143 is a flexible titanium sheet with ruthenium iridium oxide coated on the surface, the cathode 144 is a flexible titanium sheet, the current efficiency is not less than 96%, the plates are embedded in flexible plasticWithin the housing 141. The length of a single rope electrode 14 is 10 m. The flexible plastic shell 141 is made of transparent PP (polypropylene) flexible plastic, and through holes 142 with the diameter of 1mm are distributed around the flexible plastic shell 141.
The power supply cabinet 15 is used for supplying and adjusting direct current to the rope-shaped electrodes 14 for electrolysis, the adjustable current of a single rope-shaped electrode 14 is 210A, the electrifying cycle is set to be 10s (namely, the interval time between two times of electrolysis is 10s), and the time length of each electrolysis is 5 s.
Firstly, the rope-shaped electrode 14 is closely attached to and fixed around the steel pile 12 through the steel ring 13, the flexible rope-shaped electrode 14 is connected with the power supply cabinet 15 through the lead 16, then the power supply cabinet 15 is set to have the current of 210A, the electrifying period is set to be 10s, the time of each electrolysis is set to be 5s, and the power supply cabinet 15 is started to electrolyze seawater to generate effective chlorine with a certain concentration to be dispersed on the surface of the steel pile 12 to kill marine organisms. During electrolysis, seawater enters the rope-shaped electrode 14 through the through hole 142 to be electrolyzed, and generated sodium chlorate (NaClO), hypochlorous acid (HClO) and chlorine gas (Cl) are generated2) Etc. the available chlorine is dispersed around the steel piles 12 through the through-holes 142. Sampling in a space 10-15cm away from the horizontal direction of the steel pile 12 to test the effective chlorine concentration: samples were taken three times every 10 seconds at the upper, middle and lower positions of the submerged area of the steel pile 12, and the available chlorine content was measured by iodometry, and the results are shown in the following table. Experiments show that the electrolytic antifouling device for the marine steel structure can keep the effective chlorine concentration between 0.2 ppm and 0.5ppm for a long time and has good antifouling effect.
| Location of submerged area | First test | Second test | Third test |
| On the steel pile leg | 0.40ppm | 0.19ppm | 0.31ppm |
| In the steel pile leg | 0.23ppm | 0.21ppm | 0.49ppm |
| Steel joint between legs | 0.33ppm | 0.21ppm | 0.36ppm |
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (13)
1. The electrolytic antifouling device with the marine steel structure is characterized by comprising a power cabinet (15), a flexible rope-shaped electrode (14) and the marine steel structure (100), wherein the rope-shaped electrode (14) is wound on the marine steel structure (100); the rope-shaped electrode (14) comprises an anode (143), a cathode (144) and a hollow shell (141), the anode (143) and the cathode (144) are arranged in the shell (141) at intervals, the anode (143) and the cathode (144) are oppositely arranged in the shell (141), the anode (143) and the cathode (144) are electrically connected with the power cabinet (15), and a through hole (142) for seawater to enter the shell (141) is formed in the shell (141); the rope-shaped electrode (14) is used for electrolyzing seawater to generate effective chlorine in the seawater near the marine steel structure (100) so as to prevent the marine steel structure (100) from fouling.
2. The electrolytic antifouling device for marine steel structures according to claim 1, wherein the rope-shaped electrodes (14) are spirally wound on the marine steel structure (100), and the distance (a) between two adjacent spirals of the rope-shaped electrodes (14) is 30-80 cm.
3. The electrolytic antifouling device for marine steel structures according to claim 1, wherein the seawater has an effective chlorine concentration of 0.2-0.5ppm in a space range of 10-15cm horizontally outward from the marine steel structures (100).
4. The marine steel structure electrolytic antifouling device as claimed in claim 1, wherein the anode (143) and the cathode (144) are electrically connected with the positive electrode and the negative electrode of the power supply cabinet (15) through wires (16), respectively.
5. The electrolytic antifouling device for the marine steel structure as claimed in claim 1, wherein the power supply cabinet (15) periodically and intermittently supplies power to the rope-shaped electrode (14).
6. The marine steel structure electrolytic antifouling device as claimed in claim 1, wherein the housing (141) is a flexible plastic housing, and the anode (143) and the cathode (144) are both made of flexible titanium plate.
7. The marine steel structure electrolytic antifouling device as claimed in claim 1, wherein the anode (143) and the cathode (144) are both embedded and fixed in the housing (141).
8. The electrolytic antifouling device for steel marine structures according to claim 1, wherein the width of the anode (143) and the width of the cathode (144) are equal, and the ratio of the width of the anode (143) to the distance between the anode (143) and the cathode (144) is 1: 1-2: 1; the thickness of the anode (143) and the thickness of the cathode (144) are both 0.3-0.5 mm.
9. The electrolytic antifouling device for marine steel structures as claimed in claim 1, wherein the diameter of the through hole (142) is 0.5-2 mm.
10. The marine steel structure electrolytic antifouling device as claimed in claim 1, wherein the number of the through holes (142) is plural, and the plural through holes (142) are uniformly distributed on the housing (141).
11. The marine steel structure electrolytic antifouling device as claimed in claim 1, further comprising a steel ring (13), wherein the rope-shaped electrode (14) is fixed on the marine steel structure (100) through the steel ring (13).
12. The electrolytic antifouling device for marine steel structure as claimed in claim 1, wherein the marine steel structure (100) comprises a steel pile (12) at least partially disposed in the sea, and the rope-shaped electrode (14) is wound on the steel pile (12).
13. The electrolytic antifouling device for marine steel structure according to claim 12, wherein the marine steel structure (100) further comprises a marine platform (111), the marine platform (111) is disposed above the steel pile (12) and connected with the steel pile (12), and the power supply cabinet (15) is disposed on the marine platform (111).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210480524.XA CN114774947B (en) | 2022-05-05 | 2022-05-05 | Electrolytic antifouling device for ocean steel structure |
Applications Claiming Priority (1)
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