CN114774947B - Electrolytic antifouling device for ocean steel structure - Google Patents
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- CN114774947B CN114774947B CN202210480524.XA CN202210480524A CN114774947B CN 114774947 B CN114774947 B CN 114774947B CN 202210480524 A CN202210480524 A CN 202210480524A CN 114774947 B CN114774947 B CN 114774947B
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Abstract
The invention provides an electrolytic antifouling device for a marine steel structure, which comprises a power cabinet, a flexible rope-shaped electrode and a marine steel structure, wherein the rope-shaped electrode is wound on the marine steel structure; the rope-shaped electrode comprises an anode, a cathode and a hollow shell, wherein 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 electrically connected with the power cabinet, and a through hole for seawater to enter the shell is formed in 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 antifouling.
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
Various marine organisms are attached and corroded on the steel structure foundation of the offshore wind farm, including marine animals, shellfish, algae plants and the like. The safe operation and the service life of the offshore wind turbine generator are greatly influenced, so that the construction of the offshore wind farm puts higher demands on the antifouling technology of the foundation steel structure. The steel structure of the wind power plant has serious growth of Shanghai organisms, large damage of a coating, large field repair difficulty and difficult quality assurance; meanwhile, the damage of the coating causes the problems of large consumption of the sacrificial anode block and large positive shift of the cathode protection potential, and the requirement of the service life of the foundation of the offshore wind turbine is far not met.
Ocean platforms are also typical steel material structures, and sudden accidents are extremely easy to occur due to corrosion damage. The biofouling increases hydrodynamic load of external seawater on the platform, damages the surface morphology of the spud leg, greatly reduces ultimate bearing capacity in local corrosion forms such as pitting and pits, and seriously affects the working condition of the ocean platform, and is considered as an important cause of the ocean platform failure.
For steel structures immersed in seawater, the commonly used anti-fouling technique is as follows:
physical removal means: the method is to remove fouling organisms on the surface of the pile leg by means of an external force and a mechanical device. People need to regularly drain water for anti-fouling treatment or operate through remote equipment, the effect is obvious, but the anti-fouling treatment cannot prevent the occurrence of biofouling, only the post-treatment of fouling problems occurs, and the treatment cost per time is high.
Coating antifouling technology: the biologically induced corrosion caused by marine biofouling can quickly destroy the coating, and causes large-area local corrosion on the surface of the pile leg of the ocean platform. Since a large amount of toxic substance paint is used in the past to cause marine pollution, nontoxic paint such as low surface energy paint, biological component-containing antifouling paint and the like is actively developed at home and abroad.
Electrolytic antifouling technology: mainly comprises an electrolytic seawater antifouling technology and an electrolytic copper-aluminum antifouling technology. Electrolytic seawater to produce sodium hypochlorite (NaClO), hypochlorous acid (HClO), chlorine (Cl) 2 ) And the like, the effective chlorine kills marine organisms. Can kill various marine organisms, has wide treatment capacity range and no pollution. The prior electrolytic seawater antifouling devices are relatively fixed and cannot be applied to steel pile antifouling with multi-structure or irregular structure. The electrolytic copper-aluminum antifouling technology is not suitable for large treatment capacity, occupies large area, has small influence on mucous organisms and plants and has 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 in the prior art, a flexible rope-shaped electrode is wound on the marine steel structure, and effective chlorine is generated by electrolyzing seawater through the rope-shaped electrode, so that the marine steel structure is effectively antifouling.
The invention provides an electrolytic antifouling device for a marine steel structure, which comprises a power cabinet, a flexible rope-shaped electrode and a marine steel structure, wherein the rope-shaped electrode is wound on the marine steel structure; the rope-shaped electrode comprises an anode, a cathode and a hollow shell, wherein 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 electrically connected with the power cabinet, and a through hole for seawater to enter the shell is formed in 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 as to prevent the marine steel structure from being polluted.
Further, the rope-shaped electrode is spirally wound on the ocean steel structure, and the distance between two adjacent spirals of the rope-shaped electrode is 30-80 cm.
Further, the effective chlorine concentration of the seawater in the space range of 10 cm to 15cm outside the ocean steel structure is 0.2 ppm to 0.5ppm.
Further, the anode and the cathode are electrically connected with the anode and the cathode of the power cabinet through wires respectively.
Further, the power cabinet periodically supplies power to the rope-shaped electrode in a discontinuous mode.
Further, the shell is a flexible plastic shell, and the anode and the cathode are made of flexible titanium plates.
Further, the anode and the cathode are embedded and fixed in the shell.
Further, the anode and the cathode have equal widths, and the ratio of the width of the anode to the spacing between the anode and the cathode is 1: 1-2: 1, a step of; the thickness of the anode and the cathode is 0.3-0.5 mm.
Further, the aperture of the through hole is 0.5-2 mm.
Further, the number of the through holes is multiple, and the through holes are uniformly distributed on the shell.
Further, the marine steel structure electrolytic antifouling device further comprises a steel ring, and the rope-shaped electrode is fixed on the marine steel structure through the steel ring.
Further, the marine steel structure comprises a steel pile at least partially arranged in seawater, and the rope-shaped electrode is wound on the steel pile.
Further, the ocean steel construction still includes the platform, the platform set up in steel pile top and with the steel pile is connected, the power cabinet set up in on the platform.
According to the marine steel structure electrolytic antifouling device provided by the invention, the flexible rope-shaped electrode is wound on the marine steel structure, and the effective chlorine is generated by electrolyzing seawater through the rope-shaped electrode, so that the marine steel structure is effectively antifouling. The flexible rope-shaped electrode has strong plasticity of the flexible structure and can be bent at will, so that the flexible rope-shaped electrode can be suitable for marine steel structures with any shapes, has a wide application range, and can effectively prevent pollution from being caused to each steel structure. Meanwhile, as the anode and the cathode of the rope-shaped electrode are arranged in the shell, marine garbage or seaweed can be prevented from adhering to the electrode plate to pollute the electrode plate so as to influence the chlorine production efficiency, and the service lives of the anode and the cathode can be prolonged.
The marine steel structure electrolytic antifouling device has the advantages of simple structure, small occupied area, high automation degree and large treatment range, can adjust the power-on period of the power cabinet according to the pollution condition of marine organisms, has stronger growth inhibition and killing effects on the marine fouling organisms, and can not cause bacterial drug resistance and cause no pollution to the environment.
Drawings
FIG. 1 is a schematic structural view of an electrolytic antifouling device for ocean steel structures in an embodiment of the invention.
Fig. 2 is a schematic cross-sectional view of the string-like electrode of fig. 1.
FIG. 3 is a schematic view of an electrolytic antifouling device for ocean steel structures according to another embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of a string-like electrode according to another embodiment of the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and 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 objects and not necessarily for describing a particular sequential or chronological order.
As shown in fig. 1 and 2, the electrolytic antifouling device for a marine steel structure provided by the embodiment of the invention comprises a power cabinet 15, a flexible rope-shaped electrode 14 and a marine steel structure 100, wherein the rope-shaped electrode 14 is wound on the marine steel structure 100, and at least part of the rope-shaped electrode 14 is immersed in seawater. The rope-shaped electrode 14 comprises an anode 143, a cathode 144 and a hollow shell 141, wherein the anode 143 and the cathode 144 are arranged in the shell 141 at intervals, the anode 143 and the cathode 144 are arranged relatively 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 string-shaped 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 (Cl) with uniform concentration in the seawater near the marine steel structure 100 2 ) Etc.), to kill marine microorganisms near the marine steel structure 100, thereby real-time antifouling the marine steel structure 100.
Specifically, when in 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 available chlorine through the electrolysis of the seawater, and the generated available chlorine flows out of the shell 141 through the through hole 142 on the shell 141 and is dispersed near the ocean steel structure 100 and on the surface of the ocean steel structure 100, thereby carrying out real-time antifouling on the ocean steel structure 100.
Specifically, in the marine steel structure electrolytic antifouling device of the present embodiment, the flexible rope electrode 14 is wound around the marine steel structure 100, and effective chlorine is generated by electrolysis of seawater through the rope electrode 14, thereby effectively antifouling the marine steel structure 100. The flexible rope-shaped electrode 14 can be bent at will due to the strong plasticity of the flexible structure, so that the flexible rope-shaped electrode 14 can be suitable for the marine steel structure 100 with any shape, has a wide application range, and can effectively prevent the pollution of each steel structure. Meanwhile, since the anode 143 and the cathode 144 of the rope-shaped electrode 14 are both arranged in the casing 141, marine garbage or seaweed can be prevented from adhering to the electrode plates (the anode 143 and the cathode 144) to pollute the electrode plates, so that the chlorine production efficiency is influenced, and the service lives of the anode 143 and the cathode 144 can be prolonged. The marine steel structure electrolytic antifouling device has the advantages of simple structure, small occupied area, high automation degree and large treatment range, can adjust the power-on period of the power cabinet according to the pollution condition of marine organisms, has stronger growth inhibition and killing effects on the marine fouling organisms, and can not cause bacterial drug resistance and cause no pollution to the environment.
Further, as shown in fig. 1, in this embodiment, the rope electrode 14 is spirally wound on the marine steel structure 100, and the distance a between two adjacent spirals of the rope electrode 14 is 30-80 cm, so that the effective chlorine concentration of the seawater in the space range of 10-15cm from the horizontal outside of the marine steel structure 100 is kept at 0.2-0.5ppm.
Further, as shown in fig. 1 and 2, in the present embodiment, the power cabinet 15 is an adjustable power source, and the power cabinet 15 is used for providing and adjusting direct current to supply power to the rope-shaped electrode 14. The anode 143 and the cathode 144 of the string-like electrodes 14 are electrically connected to the positive and negative poles of the power supply cabinet 15 via the leads 16, respectively, and each string-like electrode 14 is provided with a separate power supply.
Specifically, the number of the switches of the power cabinet 15 can be set according to the number of the steel piles 12, and a rectifier is arranged in the power cabinet 15 to convert alternating current into direct current and supply the direct current to the rope-shaped electrode 14 for electrolysis. The power-on period and the electrolysis duration of the power cabinet 15 can be adjusted according to the pollution condition of marine organisms.
Further, in the present embodiment, the power supply cabinet 15 periodically supplies power to the string-like electrode 14 intermittently, and the length of time of electrolysis of the string-like electrode 14 is 5-10s each time. By periodically and intermittently supplying power according to the pollution condition of marine organisms, the concentration of available chlorine can be ensured to achieve a sufficient killing effect, and the power consumption can be saved.
Further, as shown in fig. 2, in this embodiment, the casing 141 is a flexible plastic casing, the casing 141 is a circular structure with a diameter of 5-15mm, and the section of the end of the casing 141 is in an opening shape, which is convenient for the scaling substances to fall off and later cleaning, and prevents the scaling substances of the rope-shaped electrode 14 from accumulating. The service life of the rope-shaped electrode 14 is more than or equal to 10 years. The current of the single rope-shaped electrode 14 is between 100 and 300A, the length is 6 to 20m, and the number of the rope-shaped 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 shape structures).
Further, in the present embodiment, the material of the casing 141 may be transparent or opaque PVC, PP or PE soft plastic.
Further, as shown in fig. 2, in this embodiment, the anode 143 and the cathode 144 are made of flexible titanium plates, and the anode 143 and the cathode 144 are embedded and fixed in the casing 141, so as to ensure tight contact between the electrode plates and the casing 141. The length of the anode 143 and the cathode 144 is determined according to the length of the string-shaped electrode 14. The width 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 interval between the anode 143 and the cathode 144 is 1: 1-2: 1, a step of; the thickness of each of the anode 143 and the cathode 144 is 0.3 to 0.5mm. The current density at anode 143 and cathode 144 was 1500A/m 2 -2000A/m 2 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 plurality of through holes 142 are uniformly distributed on the housing 141 in the axial direction and the circumferential direction of the housing 141, so that the effective chlorine generated by electrolysis can be uniformly dispersed around the marine steel structure 100. The hole diameter of the through-hole 142 is 0.5-2 mm, so that seawater and available chlorine can smoothly enter and exit the housing 141, and ocean garbage or seaweed can be prevented from entering the housing 141.
Further, as shown in fig. 1, in the present embodiment, the electrolytic antifouling device for a marine steel structure further comprises a steel ring 13, wherein the steel ring 13 is disposed around the marine steel structure 100, and the rope electrode 14 is fixed on the marine steel structure 100 through the steel ring 13, so as to prevent the rope electrode 14 from falling off from the marine steel structure 100, and meanwhile, the steel ring 13 can enable the rope electrode 14 to be tightly fixed around the marine steel structure 100, so that available chlorine is fully dispersed around the marine steel structure 100. The rising and falling of the sea water level does not affect the electrolysis of the rope electrode 14, and the effective chlorine antifouling can be produced around the marine steel structure 100 in the portion 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 comprises a steel pile 12 at least partially disposed in seawater, and a string-like electrode 14 is wound around the steel pile 12. The marine steel structure 100 further comprises an ocean platform 111, wherein the ocean platform 111 is arranged above the steel piles 12 and connected with the steel piles 12, and the power cabinet 15 is arranged on the ocean platform 111.
The application method of the marine steel structure electrolytic antifouling device provided by the embodiment of the invention can be as follows:
1. the method comprises the steps of 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 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 the steel ring 13, so that the rope-shaped electrode 14 is tightly clung to the steel pile 12 to be fixed in a surrounding manner;
3. the electric control cabinet 15 is utilized to provide direct current for the rope-shaped electrode 14, the rope-shaped electrode 14 electrolyzes seawater to generate effective chlorine with a certain concentration, and the effective chlorine is dispersed around and on the surface of the steel pile 12 so as to kill microorganisms;
4. according to the pollution condition of marine organisms, the power-on period and the electrolysis duration of the power cabinet 15 are regulated, so that the effective chlorine concentration of the steel pile 12 is kept at 0.2-0.5ppm in the space range of 10-15cm from the horizontal outwards.
The marine steel structure electrolytic antifouling device provided by the embodiment of the invention has the advantages that:
1. the flexible rope electrode 14 is wound around the marine steel structure 100, and the rope electrode 14 is used for electrolyzing seawater to generate effective chlorine, so that the marine steel structure 100 is effectively antifouling. The flexible rope-shaped electrode 14 can be bent at will due to the strong plasticity of the flexible structure, so that the flexible rope-shaped electrode 14 can be suitable for the marine steel structure 100 with any shape, has a wide application range, and can effectively prevent the pollution of each steel structure.
2. Because the anode 143 and the cathode 144 of the rope-shaped electrode 14 are arranged in the shell 141, marine garbage or seaweed can be prevented from adhering to the electrode plates (the anode 143 and the cathode 144) to pollute the electrode plates, so that the chlorine production efficiency is influenced, and the service lives of the anode 143 and the cathode 144 can be prolonged.
3. The outer shell 141 is uniformly provided with a plurality of through holes 142 with smaller apertures, so that the effective chlorine generated by electrolysis can be uniformly dispersed around the ocean steel structure 100, and meanwhile, ocean garbage or seaweed can be prevented from entering the outer shell 141.
4. The marine steel structure electrolytic antifouling device has the advantages of simple structure, small occupied area, high automation degree and large treatment range, can adjust the power-on period of the power cabinet according to the pollution condition of marine organisms, has stronger growth inhibition and killing effects on the marine fouling organisms, and can not cause bacterial drug resistance and cause no pollution to the environment.
Example one:
as shown in fig. 1, the marine steel structure 100 is a certain ocean platform structure, and the marine steel structure 100 includes an ocean platform 111 and a steel pile 12. The steel piles 12 were 0.4 m in diameter, 9m in length and 7m in height in the seawater immersion zone, the positions of the steel rings 13 were adjusted so that the distance a=50 cm between the rings of the string-like electrodes 14, square string-like electrodes 14 were used, the length of a single string-like electrode 14 was 10m, and two string-like electrodes 14 were wound around each steel pile 12.
The string-like electrode 14 is composed of an anode 143, a cathode 144, and a flexible plastic housing 141. The plate current density of the anode 143 and the cathode 144 in the string electrode 14 was 1500A/m 2 The side length is 10mm, the plate width is 6mm, 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 more than or equal to 96%, and the plates are embedded in the flexible plastic shell 141. The length of the individual string-like electrodes 14 is 10m. The flexible plastic housing 141 is made of transparent PP soft plastic, and through holes 142 with the diameter of 1mm are distributed around the flexible plastic housing 141.
The power cabinet 15 is used for providing and adjusting direct current to the rope-shaped electrodes 14 for electrolysis, the adjustable current of the single rope-shaped electrode 14 is 180A, the electrifying period is set to be 10s (namely, the interval time between two electrolysis is 10 s), and the duration of each electrolysis is 5s.
Firstly, the rope-shaped electrode 14 is tightly attached to the steel pile 12 through the steel ring 13 for surrounding and fixing, the flexible rope-shaped electrode 14 is connected with the power cabinet 15 through the lead 16, then the current of the power cabinet 15 is set to be 180A, the power-on period is set to be 10s, the duration of each electrolysis is 5s, and the power 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 for killing marine organisms. During electrolysis, seawater enters the rope-shaped electrode 14 through the through holes 142 for electrolysis, and sodium chlorate (NaClO), hypochlorous acid (HClO) and chlorine (Cl) are generated 2 ) The available chlorine is dispersed around the steel pile 12 through the through holes 142. Sampling and testing the effective chlorine concentration in a space 10 cm to 15cm horizontally outwards of the steel pile 22: samples were taken three times at 10s intervals at the upper, middle and lower positions of the immersed zone of the steel pile 12, and the effective chlorine content was measured using the iodometry method, and the results are shown in the following table. Experiments show that the marine steel structure electrolytic antifouling device can keep the effective chlorine concentration between 0.2 and 0.5ppm for a long time, and has good antifouling effect.
| Submerged zone position | First test | Second test | Third test |
| Upper part | 0.31ppm | 0.40ppm | 0.51ppm |
| In (a) | 0.23ppm | 0.33ppm | 0.43ppm |
| Lower part(s) | 0.25ppm | 0.43ppm | 0.41ppm |
Example two:
as shown in fig. 3, the marine steel structure 100 is a shoal marine wind power generation structure, and the marine steel structure 100 includes a wind power plant 112 and a steel pile 12. The three-leg steel piles 12 (only two legs are shown in the figure) have an average diameter of 0.3m, the height of the seawater immersion area is 3m, the positions of the steel rings 13 are adjusted so that the distance a=50 cm between the rings of the rope-shaped electrodes 14, the circular rope-shaped electrodes 14 are used, the length of each 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 string-like electrode 14 is composed of an anode 143, a cathode 144, and a flexible plastic housing 141. The plate current density of the anode 143 and the cathode 144 in the string electrode 14 was 1500A/m 2 The 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 more than or equal to 96%, and the plates are embedded in the flexible plastic shell 141. The length of the individual string-like electrodes 14 is 10m. The flexible plastic housing 141 is made of transparent PP soft plastic, and through holes 142 with the diameter of 1mm are distributed around the flexible plastic housing 141.
The power cabinet 15 is used for providing and adjusting direct current to the rope-shaped electrodes 14 for electrolysis, the adjustable current of the single rope-shaped electrode 14 is 210A, the electrifying period is set to be 10s (namely, the interval time between two electrolysis is 10 s), and the duration of each electrolysis is 5s.
Firstly, the rope-shaped electrode 14 is tightly attached and fixed with the steel pile 12 through the steel ring 13, the flexible rope-shaped electrode 14 is connected with the power cabinet 15 through the lead 16, and then the steel pile is arrangedThe power cabinet 15 is set to have the current of 210A, the power-on period is set to be 10s, the electrolysis duration is 5s each time, and the power 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 so as to kill marine organisms. During electrolysis, seawater enters the rope-shaped electrode 14 through the through holes 142 for electrolysis, and sodium chlorate (NaClO), hypochlorous acid (HClO) and chlorine (Cl) are generated 2 ) The available chlorine is dispersed around the steel pile 12 through the through holes 142. Sampling and testing the effective chlorine concentration in a space 10 cm to 15cm outside the steel pile 12 horizontally: samples were taken three times at 10s intervals at the upper, middle and lower positions of the immersed zone of the steel pile 12, and the effective chlorine content was measured using the iodometry method, and the results are shown in the following table. Experiments show that the marine steel structure electrolytic antifouling device can keep the effective chlorine concentration between 0.2 and 0.5ppm for a long time, and has good antifouling effect.
| Submerged zone position | First test | Second test | Third test |
| On the steel pile leg | 0.40ppm | 0.19ppm | 0.31ppm |
| In steel pile legs | 0.23ppm | 0.21ppm | 0.49ppm |
| Steel joint between legs | 0.33ppm | 0.21ppm | 0.36ppm |
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (13)
1. The electrolytic antifouling device for the marine steel structure is characterized by comprising a power cabinet (15), a flexible rope-shaped electrode (14) and a 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), wherein the anode (143) and the cathode (144) are arranged in the shell (141) at intervals, the anode (143) and the cathode (144) are relatively 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-like electrode (14) is used for electrolyzing seawater to generate available chlorine in the seawater near the marine steel structure (100) so as to prevent the marine steel structure (100) from being polluted.
2. The marine steel structure electrolytic antifouling device according to claim 1, wherein the rope-shaped electrode (14) is spirally wound on the marine steel structure (100), and a distance (a) between two adjacent spirals of the rope-shaped electrode (14) is 30-80 cm.
3. The marine steel structure electrolytic antifouling device according to claim 1, wherein the marine steel structure (100) has an effective chlorine concentration of 0.2 to 0.5ppm in the space range of 10-15cm horizontally outward of the seawater.
4. The marine steel structure electrolytic antifouling device according to claim 1, wherein said anode (143) and said cathode (144) are electrically connected to the positive and negative poles of said power supply cabinet (15) through wires (16), respectively.
5. Marine steel structure electrolysis antifouling device according to claim 1, wherein said power supply cabinet (15) periodically intermittently supplies power to said rope-like electrode (14).
6. The marine steel structure electrolytic antifouling device according to claim 1, wherein said housing (141) is a flexible plastic housing, and said anode (143) and said cathode (144) are each made of flexible titanium plate material.
7. The marine steel structure electrolytic antifouling device according to claim 1, wherein said anode (143) and said cathode (144) are each inlaid and fixed within said housing (141).
8. The marine steel structure electrolytic antifouling device according to claim 1, wherein the anode (143) and the cathode (144) have equal widths, and wherein the ratio of the width of the anode (143) to the spacing between the anode (143) and the cathode (144) is 1: 1-2: 1, a step of; the thickness of the anode (143) and the cathode (144) is 0.3-0.5 mm.
9. The marine steel structure electrolytic antifouling device according to claim 1, wherein the aperture of the through hole (142) is 0.5-2 mm.
10. The marine steel structure electrolytic antifouling device according to claim 1, wherein the number of said through holes (142) is plural, and the plural through holes (142) are uniformly distributed on said housing (141).
11. The marine steel structure electrolytic antifouling device according to claim 1, further comprising a steel ring (13), said rope electrode (14) being fixed to said marine steel structure (100) by means of said steel ring (13).
12. The marine steel structure electrolytic antifouling device according to claim 1, wherein said marine steel structure (100) comprises a steel pile (12) at least partially disposed in sea water, said rope electrode (14) being wound on said steel pile (12).
13. The marine steel structure electrolytic antifouling device according to claim 12, wherein said marine steel structure (100) further comprises an ocean platform (111), said ocean platform (111) being disposed above said steel pile (12) and connected to said steel pile (12), said power cabinet (15) being disposed on said ocean platform (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210480524.XA CN114774947B (en) | 2022-05-05 | 2022-05-05 | Electrolytic antifouling device for ocean steel structure |
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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 |
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| Publication Number | Publication Date |
|---|---|
| CN114774947A CN114774947A (en) | 2022-07-22 |
| CN114774947B true CN114774947B (en) | 2023-05-26 |
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