Marine organism inhibition system and wind generating set

Abstract

The invention provides a marine organism inhibition system and a wind generating set. The marine organism inhibition system comprises a seawater heat exchange system and a marine organism inhibition system, wherein seawater and hot cooling liquid are subjected to heat exchange in the seawater heat exchange system; the seawater containing box is used for containing seawater; the hot water bypass is communicated with a seawater outlet of the seawater heat exchange system and the seawater containing box; the seawater main channel is communicated with the seawater containing box and a seawater inlet of the seawater heat exchange system; the water pump is used for supplying seawater into the seawater containing box and supplying the seawater in the seawater containing box to the seawater inflow port of the seawater heat exchange system through the seawater main channel. According to the invention, the marine organisms in the seawater used for the seawater heat exchange system are killed by using the waste heat of the seawater heat exchange system, and the system is simple, stable and reliable, almost does not need to be maintained, and has good economical efficiency.

Description

Technical Field

[0001] The present invention relates to a marine life suppression system and a wind turbine generator set, and more particularly to a marine life suppression system that utilizes waste heat from a seawater heat exchange system to suppress marine life and a wind turbine generator set comprising the marine life suppression system. Background Art

[0002] As the capacity of offshore wind turbines increases, air cooling technology encounters technical bottlenecks, and seawater cooling technology becomes more and more common. In addition to the wind power field, the use of seawater cooling technology for cooling in the ship field or power plant field is also becoming more and more common.

[0003] When using seawater for cooling, the seawater needs to be filtered first to prevent the seawater heat exchange system from being blocked. However, marine organisms such as microorganisms and fish eggs still exist in the filtered seawater, which will cause serious pipe contamination if they enter the seawater heat exchange system. Therefore, it is necessary to disinfect the marine organisms. Summary of the invention

[0004] An object of the present invention is to provide a marine life suppression system capable of utilizing waste heat of a seawater heat exchange system to disinfect organisms in seawater used in the seawater heat exchange system and a wind turbine generator set including the marine life suppression system.

[0005] Another object of the present invention is to provide a marine life suppression system and a wind turbine generator set including the marine life suppression system, which can improve the disinfecting efficiency and prevent the marine life from developing tolerance and causing harm to the seawater heat exchange system.

[0006] According to one aspect of the present invention, there is provided a marine life suppression system, which includes: a seawater heat exchange system, in which seawater and a hot coolant are exchanged for heat; a seawater holding tank for holding seawater; a hot water bypass connecting the seawater discharge outlet of the seawater heat exchange system and the seawater holding tank; a seawater main channel connecting the seawater holding tank and the seawater inlet of the seawater heat exchange system; and a water pump for supplying seawater to the seawater holding tank and for supplying the seawater in the seawater holding tank to the seawater inlet of the seawater heat exchange system through the seawater main channel.

[0007] Optionally, a temperature sensor is provided on the hot water bypass, and the marine life suppression system further includes a main circuit channel, wherein the temperature sensor is used to sense the water temperature in the hot water bypass, and the main circuit channel is connected to the seawater discharge outlet, and when the temperature sensed by the temperature sensor is greater than a predetermined value, a portion of the seawater discharged from the seawater discharge outlet is discharged into the sea through the main circuit channel.

[0008] Optionally, the marine life suppression system further includes a filter, wherein the filter is disposed on the upstream side of the water pump, and the water pump supplies seawater filtered by the filter to the seawater holding tank.

[0009] Optionally, a hot water bypass control valve is provided on the hot water bypass for opening or closing the hot water bypass or adjusting the seawater flow in the hot water bypass. The marine life suppression system also includes a main circuit channel, and a main circuit control valve is provided on the main circuit channel for opening or closing the main circuit channel or adjusting the seawater flow in the main circuit channel.

[0010] Optionally, the marine life inhibition system also includes an electrolytic seawater bypass and an electrolytic seawater system, the electrolytic seawater bypass connecting the seawater outlet and a first connection point of the electrolytic seawater system, the electrolytic seawater system being used to generate hypochlorous acid using seawater supplied from the seawater outlet and to use the generated hypochlorous acid to disinfect marine life in the seawater supplied to the seawater inlet.

[0011] Optionally, the electrolytic seawater bypass is provided with an electrolytic seawater bypass control valve for opening or closing the electrolytic seawater bypass or adjusting the seawater flow in the electrolytic seawater bypass.

[0012] Optionally, a hot water bypass control valve is provided on the hot water bypass, which is used to open or close the hot water bypass or adjust the seawater flow in the hot water bypass. When the electrolysis seawater bypass control valve is opened, the hot water bypass control valve is closed, and when the electrolysis seawater bypass control valve is closed, the hot water bypass control valve is opened.

[0013] Optionally, the seawater electrolysis system comprises a first chloric acid supply port, and the first chloric acid supply port is connected to the seawater holding tank.

[0014] Optionally, the seawater electrolysis system comprises a second chloric acid supply port, and the second chloric acid supply port is connected to the upstream side of the water pump.

[0015] Optionally, the seawater electrolysis system comprises a tertiary chloric acid supply port, and the tertiary chloric acid supply port is connected to the downstream side of the seawater main channel.

[0016] Optionally, the marine life inhibition system further includes at least one residual chlorine detector disposed in the seawater holding box and / or on the seawater main channel.

[0017] Optionally, the marine biological inhibition system also includes an electrolytic copper-aluminum system, which is used to produce Cu2O and Al(OH)3 that can form a protective layer. The electrolytic copper-aluminum system is connected to the seawater holding tank, the upstream side of the water pump and at least one of the seawater main channel to supply Cu2O and Al(OH)3.

[0018] Optionally, the marine life inhibition system also includes a direct dosing system, which stores a drug that can disinfect marine life. The direct dosing system is connected to at least one of the seawater holding tank, the upstream side of the water pump and the seawater main channel to supply the drug.

[0019] According to another aspect of the present invention, a wind turbine generator set is provided, wherein the wind turbine generator set comprises the marine life suppression system as described above.

[0020] According to the present invention, by using the waste heat of the seawater heat exchange system to increase the hot water bypass to disinfect the marine life in the seawater used in the seawater heat exchange system, the system is simple, stable, reliable, and almost maintenance-free, and has good economic efficiency. In addition, by using the waste heat of the seawater heat exchange system to disinfect the marine life in the seawater used in the seawater heat exchange system, the hot water discharged into the seawater is reduced, the water circulation utilization rate is improved, and the impact on the seawater environment is reduced.

[0021] In addition, according to the present invention, the technology of using the waste heat of the seawater heat exchange system to inhibit marine life can be used alternately with the traditional technology of inhibiting marine life, which can avoid the economic losses caused by the need to shut down the system for maintenance of a traditional marine life inhibition system, improve the heat exchange efficiency and the working efficiency of the entire system, and at the same time improve the disinfection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A marine life suppression system according to a first embodiment of the present invention.

[0023] Figure 2 A marine life suppression system according to a second embodiment of the present invention.

[0024] Figure 3 A marine life suppression system according to a third embodiment of the present invention.

[0025] Explanation of the symbols in the accompanying drawings: 10-seawater heat exchange system, 11-seawater inlet, 12-seawater outlet, 20-seawater storage tank, 30-hot water bypass, 31-temperature sensor, 32-hot water bypass control valve, 40-seawater main channel, 50-water pump, 60-main circuit channel, 61-main circuit control valve, 70-filter, 81-electrolytic seawater bypass, 81a-electrolytic seawater bypass control valve, 82-electrolytic seawater system, 82a-first connection point, 82b-first Chloric acid supply port, 82c-first chloric acid supply port, 82d-first chloric acid supply port, 90-electrolytic copper and aluminum system, 91-first supply port, 92-second supply port, 93-third supply port, L1-first chloric acid channel, L2-first chloric acid channel, L3-first chloric acid channel, M1-first supply channel, M2-second supply channel, M3-third supply channel, P1-first residual chlorine detector, P2-second residual chlorine detector, P3-third residual chlorine detector. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] In the fields of wind power, ships, power plants, etc., it is becoming more and more common to use seawater cooling technology to replace air cooling technology for cooling. That is, the hot coolant exchanges heat with seawater in the seawater heat exchange system, and then returns to the heat source to continue cooling the heat source after becoming cold coolant, while the hot seawater after heat exchange is directly discharged into the sea.

[0029] When using seawater for cooling, it is necessary to filter the seawater first to prevent it from clogging the seawater heat exchange system. However, there are still marine organisms such as microorganisms and fish eggs in the filtered seawater. If they enter the seawater heat exchange system, they will cause serious contamination of the pipelines and affect the power generation efficiency of wind turbines. Therefore, it is necessary to disinfect the marine organisms.

[0030] The present invention provides a marine organism suppression system which can utilize the waste heat of a seawater heat exchange system to disinfect organisms in seawater used in the seawater heat exchange system.

[0031] Below, we will refer to Figures 1 to 3 A marine growth suppression system according to an embodiment of the present invention is described.

[0032] Figure 1 is a marine organism suppression system according to a first embodiment of the present invention. Figure 1 As shown, the marine life suppression system according to an embodiment of the present invention may include: a seawater heat exchange system 10, in which seawater and a hot coolant exchange heat in the seawater heat exchange system 10; a seawater holding tank 20, used to hold seawater; a hot water bypass 30, connecting the seawater discharge port 12 of the seawater heat exchange system 10 and the seawater holding tank 20; a seawater main channel 40, connecting the seawater holding tank 20 and the seawater inlet of the seawater heat exchange system 10; a water pump 50, used to supply seawater to the seawater holding tank 20, and used to supply the seawater in the seawater holding tank 20 to the seawater inlet 11 of the seawater heat exchange system 10 through the seawater main channel 40.

[0033] like Figure 1 As shown, the water pump 50 is used to supply the seawater in the seawater holding tank 20 to the seawater inlet 11 of the seawater heat exchange system 10 through the seawater main channel 40, and enter the seawater heat exchange system 10 to exchange heat with the hot coolant (for example, from the engine room of the wind turbine generator set) in the seawater heat exchange system 10, and the cold coolant after the heat exchange returns to the heat source to continue to refrigerate the heat source (for example, the engine room of the wind turbine generator set). According to an embodiment of the present invention, the heated seawater after the heat exchange is not directly discharged into the sea, but enters the seawater holding tank 20 through the seawater discharge port 12 of the seawater heat exchange system 10 and the hot water bypass 30 of the seawater holding tank 20.

[0034] According to an embodiment of the present invention, the seawater heat exchange system 10, the hot water bypass 30, the seawater holding tank 20 and the seawater main channel 40 form a closed loop, and the temperature of the seawater after one or several heat exchanges will reach 40-60°C. When the temperature of the seawater is higher than 30°C, it will cause the embryonic development of marine organisms to stagnate or cause deformities and death, and very few marine organisms can tolerate water temperatures exceeding 35-40°C. Therefore, when the seawater after heat exchange enters the seawater holding tank 20 through the hot water bypass 30, the marine organisms in the seawater in the seawater holding tank 20 will be disinfected. Specifically, after the seawater after heat exchange enters the seawater holding tank 20, the marine organisms in the seawater holding tank 20 will be instantly disinfected. In addition, the temperature of the seawater after heat exchange may still exceed 35°C after mixing with the seawater in the seawater holding tank 20, so the marine organisms in the seawater holding tank 20 will be continuously disinfected.

[0035] According to the embodiment of the present invention, by using the waste heat of the seawater heat exchange system to increase the hot water bypass to disinfect the marine life in the seawater used in the seawater heat exchange system, the system is simple, stable, reliable, and almost maintenance-free, and has good economic efficiency. In addition, by using the waste heat of the seawater heat exchange system to disinfect the marine life in the seawater used in the seawater heat exchange system, the hot water discharged into the seawater is reduced, the water circulation utilization rate is improved, and the impact on the seawater environment is reduced.

[0036] According to an embodiment of the present invention, the seawater heat exchange system 10 may be, for example, a tubular heat exchanger, but the present invention is not limited thereto, as long as heat exchange between seawater and coolant can be achieved. According to an embodiment of the present invention, a water pump 50 may be disposed in the seawater holding tank 20 to supply seawater to the seawater holding tank 20, and to supply the seawater in the seawater holding tank 20 to the seawater inlet 11 of the seawater heat exchange system 10 through the seawater main channel 40. The specific structures of the seawater holding tank 20 and the water pump 50 are not limited. As an example, the water pump 50 may supply seawater after preliminary filtration to the seawater holding tank 20.

[0037] According to an embodiment of the present invention, Figure 1 As shown, the marine life suppression system may further include a filter 70, which is disposed on the upstream side of the water pump 50, and the water pump supplies the seawater filtered by the filter 70 to the seawater holding tank 20. The specific location and structure of the filter 70 are not limited, as long as the seawater entering the seawater holding tank 20 can be filtered.

[0038] According to an embodiment of the present invention, Figure 1 As shown, a temperature sensor 31 may be provided on the hot water bypass 30, and the temperature sensor 31 is used to sense the water temperature in the hot water bypass 30. According to an embodiment of the present invention, Figure 1 As shown, a hot water bypass control valve 32 may also be provided on the hot water bypass 30 for opening or closing the hot water bypass 30 or adjusting the seawater flow in the hot water bypass 30 .

[0039] According to an embodiment of the present invention, Figure 1 As shown, the marine life suppression system may further include a main circuit channel 60 connected to the seawater outlet 12. A main circuit control valve 61 is provided on the main circuit channel 60 for opening or closing the main circuit channel 60 or adjusting the seawater flow in the main circuit channel 60.

[0040] According to an embodiment of the present invention, in order to prevent the temperature of the seawater in the seawater holding tank 20 from being too high, resulting in poor cooling effect, the temperature of the seawater in the seawater holding tank 20 can be appropriately controlled. When the temperature sensed by the temperature sensor 31 is greater than a predetermined value (the predetermined value can be 60° C. or higher), the main circuit control valve 61 can be opened and its flow rate can be adjusted to discharge a portion of the seawater discharged from the seawater discharge port 12 to the sea through the main circuit channel 60, thereby reducing the amount of hot seawater flowing into the seawater holding tank 20.

[0041] According to an embodiment of the present invention, the technology of using the waste heat of the seawater heat exchange system 10 to inhibit marine life can also be used in conjunction with other traditional marine life inhibition technologies known in the art (for example, electrolytic seawater systems, electrolytic copper and aluminum systems, and direct dosing systems).

[0042] The electrolytic seawater system uses an electrolytic cell to electrolyze seawater to produce hypochlorous acid, which can effectively disinfect marine life when the residual chlorine content is 2 to 5 ppm. The electrolytic copper and aluminum system electrolyzes copper anodes and aluminum anodes to produce Cu2O and Al(OH)3. This highly viscous flocculent will be distributed in areas where marine larvae may inhabit, forming a very thin protective layer that inhibits marine life. The direct dosing system can store chemicals and directly add sodium hypochlorite or other non-oxidizing drugs (mainly quaternary ammonium salts, isothiazolinones, quaternary scale salts, organic guanidines, etc.) to the system.

[0043] Figure 2 This is a marine life suppression system according to a second embodiment of the present invention. In the marine life suppression system according to the second embodiment of the present invention, the technology of suppressing marine life by using the waste heat of the seawater heat exchange system 10 is used in combination with the existing electrolyzed seawater system. In order to avoid redundancy, only the structure that is different from the structure of the marine life suppression system of the first embodiment will be described.

[0044] like Figure 2 As shown, the marine life suppression system according to an embodiment of the present invention may further include an electrolytic seawater bypass 81 and an electrolytic seawater system 82. The electrolytic seawater bypass 81 connects the seawater outlet 12 and a first connection point 82a of the electrolytic seawater system 82, and the electrolytic seawater system 82 is used to generate hypochlorous acid using the seawater supplied from the seawater outlet 12 and to use the generated hypochlorous acid to disinfect marine life in the seawater supplied to the seawater inlet 11. The specific structure of the electrolytic seawater system is not limited, as long as it can achieve the effect of generating hypochlorous acid using seawater.

[0045] According to an embodiment of the present invention, the electrolytic seawater system 82 is connected to the seawater outlet 12 via the electrolytic seawater bypass 81, and hypochlorous acid is generated by using the seawater discharged from the seawater outlet 12. Compared with the case where hypochlorous acid is generated by extracting seawater from the sea using a separate water pump, one water pump can be reduced. In addition, the electrolytic seawater system 82 uses the seawater discharged from the seawater outlet 12, and there is no need to filter it again, so the water quality is good, which is conducive to reducing maintenance costs.

[0046] According to the embodiment of the present invention, the technology of using the waste heat of the seawater heat exchange system 10 to suppress marine life can be used alternately with the technology of using the seawater electrolysis system to suppress marine life.

[0047] In addition, for the seawater electrolysis system, since the seawater contains calcium and magnesium ions, they will react with OH at the cathode. - Due to reaction fouling, the electrolytic seawater system needs regular acid cleaning and maintenance, and the maintenance cycle is short. In traditional marine biological inhibition technology, when the electrolytic seawater system is maintained, the entire system needs to be shut down (for example, when it comes to the wind power field, the wind turbine needs to be shut down for maintenance), which affects the working efficiency of the entire system.

[0048] According to the embodiment of the present invention, the technology of inhibiting marine life by using the waste heat of the seawater heat exchange system 10 can be used alternately with the technology of inhibiting marine life by using the electrolysis seawater system, which can avoid the economic loss caused by the need to shut down the system for maintenance of a traditional marine life inhibition system, and improve the heat exchange efficiency and the working efficiency of the entire system. In addition, the technology of inhibiting marine life by using waste heat can effectively disinfect most marine life, and the hypochlorous acid produced by the electrolysis seawater system is mainly effective for larvae and eggs. The two can be used alternately to improve the disinfecting efficiency and avoid the harm to the system caused by the tolerance of marine life.

[0049] Specifically, the electrolytic seawater bypass 81 may be provided with an electrolytic seawater bypass control valve 81a for opening or closing the electrolytic seawater bypass 81 or adjusting the seawater flow in the electrolytic seawater bypass 81. When the electrolytic seawater bypass control valve 81a is opened, the hot water bypass control valve 32 is closed, and when the electrolytic seawater bypass control valve 81a is closed, the hot water bypass control valve 32 is opened.

[0050] According to an embodiment of the present invention, when the electrolysis seawater bypass control valve 81a is opened and the hot water bypass control valve 32 is closed, the main circuit control valve 61 can be opened or closed according to the amount of seawater required by the electrolysis seawater system 82. That is, when the amount of seawater discharged from the seawater discharge port 12 is greater than the amount of seawater required by the electrolysis seawater system 82, the main circuit control valve 61 can be opened to discharge a portion of the seawater after heat exchange through the main circuit channel 60.

[0051] According to an embodiment of the present invention, the electrolysis seawater system 82 may include a first chloric acid supply port 82b, and the first chloric acid supply port 82b is connected to the seawater holding tank 20. Specifically, the hypochlorous acid generated by the electrolysis seawater system 82 may be supplied from the first chloric acid supply port 82b to the seawater holding tank 20 through the first chloric acid channel L1 to perform a first disinfection on marine organisms in the seawater in the seawater holding tank 20. A first residual chlorine detector P1 may be provided in the seawater holding tank 20 to detect residual chlorine. When the residual chlorine amount detected by the first residual chlorine detector P1 is 2 to 5 ppm, effective disinfection of marine organisms can be achieved.

[0052] According to an embodiment of the present invention, the electrolysis seawater system 82 may further include a second chloric acid supply port 82c, which may be connected to the upstream side of the water pump 50 through the second chloric acid channel L2, so as to perform a second disinfection on the marine organisms in the seawater before the seawater enters the seawater main channel 40. Similarly, a second residual chlorine detector P2 may be provided at the connection point between the second chloric acid channel L2 and the upstream side of the water pump 50, for detecting residual chlorine. When the residual chlorine amount detected by the second residual chlorine detector P2 is 2 to 5 ppm, effective disinfection on the marine organisms can be achieved.

[0053] According to an embodiment of the present invention, the electrolysis seawater system 82 may further include a third chloric acid supply port 82d, which is connected to the downstream side of the seawater main channel 40, specifically, to a position close to the seawater inlet 11 of the seawater heat exchange system 10. The hypochlorous acid generated by the electrolysis seawater system 82 may be supplied from the third chloric acid supply port 82d to the downstream of the seawater main channel 40 through the third chloric acid channel L3 to perform a third disinfection on marine organisms in the seawater downstream of the seawater main channel 40. A third residual chlorine detector P3 may be provided at the connection point between the third chloric acid channel L3 and the seawater main channel 40 to detect residual chlorine. When the residual chlorine amount detected by the third residual chlorine detector P3 is 2 to 5 ppm, effective disinfection of marine organisms may be achieved.

[0054] Figure 3 This is a marine life suppression system according to a third embodiment of the present invention. In the marine life suppression system according to the third embodiment of the present invention, the technology of suppressing marine life by using the waste heat of the seawater heat exchange system 10 is used in combination with the existing electrolytic copper and aluminum system. In order to avoid redundancy, only the structure that is different from the structure of the marine life suppression system of the first embodiment will be described.

[0055] like Figure 3As shown, the marine life inhibition system according to an embodiment of the present invention may also include an electrolytic copper-aluminum system 90, which is used to produce Cu2O and Al(OH)3 that can form a protective layer. The electrolytic copper-aluminum system 90 is connected to the seawater holding tank 20 and / or the seawater main channel 40 to supply Cu2O and Al(OH)3. As described above, the Cu2O and Al(OH)3 produced by the electrolytic copper-aluminum system 90 are highly viscous flocs, which will be distributed in areas where marine biological larvae may inhabit, forming a very thin protective layer, which plays a role in inhibiting marine life. The specific structure of the electrolytic copper-aluminum system 90 is not limited, as long as it can produce Cu2O and Al(OH)3 that can form a protective layer. The position where the electrolytic copper-aluminum system 90 supplies Cu2O and Al(OH)3 is basically the same as the position where the electrolytic seawater system 82 supplies hypochlorous acid. Specifically, the electrolytic copper-aluminum system 90 may include a first supply port 91, which is connected to the seawater holding tank 20 through a first supply channel M1 to supply Cu2O and Al(OH)3 to the seawater holding tank 20. The electrolytic copper-aluminum system 90 may also include a second supply port 92, which is connected to the upstream side of the water pump 50 through a second supply channel M2 to supply Cu2O and Al(OH)3 to the upstream of the filter 70 of the seawater main channel 40. The electrolytic copper-aluminum system 90 may also include a third supply port 93, which is connected to the downstream side of the seawater main channel 40 through a third supply channel M3, specifically, to a position close to the seawater inlet 11 of the seawater heat exchange system 10. According to an embodiment of the present invention, the seawater discharged from the seawater discharge port 12 can be supplied to the electrolytic copper-aluminum system 90 through a pipeline, and Cu2O and Al(OH)3 are dissolved in water and then supplied to the corresponding position. In addition, the unused seawater can be discharged to the sea through the main loop channel 60.

[0056] According to an embodiment of the present invention, the technology of using the waste heat of the seawater heat exchange system 10 to inhibit marine life can be used alternately with the technology of using the electrolytic copper-aluminum system to inhibit marine life, thereby avoiding the economic losses caused by the need to shut down the system for maintenance of a traditional marine life inhibition system, and improving the heat exchange efficiency and the working efficiency of the entire system.

[0057] In addition, although not shown, in the marine life suppression system according to the embodiment of the present invention, the technology of using the waste heat of the seawater heat exchange system 10 to suppress marine life can also be used in combination with the existing direct dosing system.

[0058] That is, according to an embodiment of the present invention, the marine biological inhibition system may further include a direct dosing system, in which agents capable of disinfecting marine organisms are stored, and the direct dosing system is connected to the seawater holding tank 20 and / or the seawater main channel 40 to supply the agents.

[0059] As described above, the direct dosing system can store drugs and directly add sodium hypochlorite or other non-oxidizing drugs (mainly quaternary ammonium salts, isothiazolinones, quaternary phosphine salts, organic guanidines, etc.) to the system. For the direct dosing system, regular maintenance is required. According to an embodiment of the present invention, the technology of using the waste heat of the seawater heat exchange system 10 to inhibit marine life can be used alternately with the technology of using the direct dosing system to inhibit marine life, thereby avoiding the economic losses caused by the need to shut down the system for maintenance of a traditional marine life inhibition system, and improving the heat exchange efficiency and the working efficiency of the entire system.

[0060] As an example, the first dosing point of the direct dosing system can be connected to the seawater holding tank 20, the second dosing point of the direct dosing system can be connected to the upstream of the water pump 50, and the third dosing point of the direct dosing system can be connected to the downstream side of the seawater main channel 40 (specifically, connected to a position close to the seawater inlet 11 of the seawater heat exchange system 10).

[0061] According to another embodiment of the present invention, a wind turbine generator set including the above-mentioned marine life suppression system may be provided.

[0062] According to the present invention, by using the waste heat of the seawater heat exchange system to increase the hot water bypass to disinfect the marine life in the seawater used in the seawater heat exchange system, the system is simple, stable, reliable, and almost maintenance-free, and has good economic efficiency. In addition, by using the waste heat of the seawater heat exchange system to disinfect the marine life in the seawater used in the seawater heat exchange system, the hot water discharged into the seawater is reduced, the water circulation utilization rate is improved, and the impact on the seawater environment is reduced.

[0063] In addition, according to the present invention, the technology of using the waste heat of the seawater heat exchange system to inhibit marine life can be used alternately with the traditional technology of inhibiting marine life, which can avoid the economic losses caused by the need to shut down the system for maintenance of a traditional marine life inhibition system, improve the heat exchange efficiency and the working efficiency of the entire system, and at the same time improve the disinfection efficiency.

[0064] While exemplary embodiments of the present invention have been described in detail with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the claims.

Claims

1. A marine biocontrol system, characterized in that: The marine biocontrol system comprises: A seawater heat exchange system (10), in which seawater and hot coolant exchange heat; A seawater containing tank (20) for containing seawater; A hot water bypass (30) connected to the seawater discharge port (12) of the seawater heat exchange system (10) and the seawater holding tank (20); A seawater main channel (40) communicating the seawater containing tank (20) with a seawater inlet of the seawater heat exchange system (10); A water pump (50) is used to supply seawater to the seawater holding tank (20), and to supply the seawater in the seawater holding tank (20) to the seawater inlet (11) of the seawater heat exchange system (10) through the seawater main channel (40).

2. The marine life suppression system according to claim 1, characterized in that: The hot water bypass (30) is provided with a temperature sensor (31). The marine life suppression system further comprises a main circuit channel (60). The temperature sensor (31) is used to sense the water temperature in the hot water bypass (30). The main circuit channel (60) is connected to the seawater outlet (12). When the temperature sensed by the temperature sensor (31) is greater than a predetermined value, a portion of the seawater discharged from the seawater outlet (12) is discharged to the sea through the main circuit channel (60).

3. The marine life suppression system according to claim 1, characterized in that: The marine life suppression system further includes a filter (70) disposed on the upstream side of the water pump (50), and the water pump (50) supplies seawater filtered by the filter (70) to the seawater holding tank (20).

4. The marine life suppression system according to claim 1, characterized in that: The hot water bypass (30) is provided with a hot water bypass control valve (32) for opening or closing the hot water bypass (30) or adjusting the flow rate of seawater in the hot water bypass (30). The marine life suppression system further comprises a main circuit channel (60), and a main circuit control valve (61) is arranged on the main circuit channel (60) for opening or closing the main circuit channel (60) or adjusting the seawater flow in the main circuit channel (60).

5. The marine life suppression system according to claim 1, characterized in that: The marine life inhibition system further comprises an electrolytic seawater bypass (81) and an electrolytic seawater system (82), wherein the electrolytic seawater bypass (81) is connected to the seawater outlet (12) and a first connection point (82a) of the electrolytic seawater system (82), and the electrolytic seawater system (82) is used to generate hypochlorous acid using seawater supplied from the seawater outlet (12) and to use the generated hypochlorous acid to disinfect marine life in the seawater supplied to the seawater inlet (11).

6. The marine life suppression system according to claim 5, characterized in that: The electrolytic seawater bypass (81) is provided with an electrolytic seawater bypass control valve (81a) for opening or closing the electrolytic seawater bypass (81) or adjusting the seawater flow in the electrolytic seawater bypass (81).

7. The marine life suppression system according to claim 6, characterized in that: The hot water bypass (30) is provided with a hot water bypass control valve (32) for opening or closing the hot water bypass (30) or adjusting the flow rate of seawater in the hot water bypass (30). When the electrolysis seawater bypass control valve (81a) is opened, the hot water bypass control valve (32) is closed, and when the electrolysis seawater bypass control valve (81a) is closed, the hot water bypass control valve (32) is opened.

8. The marine organism suppression system according to any one of claims 5 to 7, characterized in that: The seawater electrolysis system (82) includes a first chloric acid supply port (82b), and the first chloric acid supply port (82b) is connected to the seawater holding tank (20).

9. The marine life suppression system according to claim 8, characterized in that: The seawater electrolysis system (82) includes a secondary chloric acid supply port (82c), and the secondary chloric acid supply port (82c) is connected to the upstream side of the water pump (50).

10. The marine life suppression system according to claim 9, characterized in that: The seawater electrolysis system (82) includes a tertiary chloric acid supply port (82d), and the tertiary chloric acid supply port (82d) is connected to the downstream side of the seawater main channel (40).

11. The marine life suppression system according to claim 10, characterized in that: The marine life inhibition system further comprises at least one residual chlorine detector (P1, P2, P3) arranged in the seawater holding box (20) and / or on the seawater main channel (40).

12. The marine life suppression system according to claim 1, characterized in that: The marine life inhibition system also includes an electrolytic copper-aluminum system (90), which is used to produce Cu2O and Al(OH)3 that can form a protective layer. The electrolytic copper-aluminum system (90) is connected to at least one of the seawater holding tank (20), the upstream side of the water pump (50) and the seawater main channel (40) to supply Cu2O and Al(OH)3.

13. The marine life suppression system according to claim 1, characterized in that: The marine life inhibition system also includes a direct dosing system, in which a drug capable of disinfecting marine life is stored. The direct dosing system is connected to at least one of the seawater holding tank (20), the upstream side of the water pump (50) and the seawater main channel (40) to supply the drug.

14. A wind turbine generator set, characterized in that: The wind turbine comprises a marine growth suppression system according to any one of claims 1 to 13.

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