Efficient ship ballast water nitrogen charging and deoxidation treatment device and method thereof

Abstract

The application discloses a kind of efficient ship ballast water nitrogen filling deoxidation processing equipment and method thereof, it is related to ship ballast water processing technical field, including frame, the top of the frame is fixedly installed with top ring, the bottom of the top ring is fixedly installed with inner package frame, the inner side of the inner package frame is fixedly installed with tank body.The application adopts the above structure, when the device is running, start drive motor, motor drives driving gear to rotate, driving gear engages driven gear to make it synchronous rotation, this transmission sequentially drives connecting pipe, cross pipe, annular pipe, side pipe and pipe frame to rotate, bend pipe is connected with nitrogen pipeline, nitrogen passes through pipe frame with equal-interval arrangement and with aeration nozzle, uniformly fills into tank body, a large number of small bubbles rapidly fill up everywhere in tank body, make nitrogen uniformly remove oxygen in ballast water, simultaneously, exhaust pipe is used to discharge floating gas, external pipe facilitates to add ballast water, and provides convenience for the operation of the device.

Description

Technical Field

[0001] This invention belongs to the field of ship ballast water treatment technology, and specifically relates to a high-efficiency ship ballast water nitrogen filling and deoxygenation treatment equipment and method. Background Technology

[0002] Nitrogen-filled deoxygenation treatment of ship ballast water is an important technology for protecting the marine ecological environment. During ship navigation, a large amount of ballast water is carried to maintain balance and stability. However, this ballast water often carries various marine organisms. When ships discharge ballast water in different sea areas, it can easily cause biological invasion and disrupt the local marine ecological balance. The nitrogen-filled deoxygenation treatment technology for ship ballast water was developed to address this problem. This technology involves filling the ballast water tank with nitrogen gas. Utilizing the chemical stability of nitrogen and its resistance to reaction with other substances, the dissolved oxygen in the water is replaced. As nitrogen gas is continuously added, the oxygen content in the ballast water gradually decreases. When the oxygen content drops to a certain level, most of the aerobic organisms carried in the ballast water cannot obtain enough oxygen to sustain their life activities. Their metabolism is inhibited, their growth and reproduction slow down, and they may even die. Through this nitrogen-filled deoxygenation treatment method, the number and activity of organisms carried in the ballast water can be effectively reduced, thereby significantly reducing the potential harm to the marine ecological environment caused by ship ballast water discharge and protecting marine biodiversity and ecological balance.

[0003] With the booming development of global maritime transport, the issue of ballast water treatment has become increasingly prominent and a key issue in the field of marine ecological environment protection. When ships sail between different sea areas, they need to carry a large amount of ballast water to maintain their stability and safety. However, this ballast water often carries various marine organisms, from tiny bacteria and plankton to small aquatic animals. When ships discharge ballast water in other places, these alien organisms may cause serious biological invasions, which can cause great damage to the balance of the local marine ecosystem. According to relevant studies, the deterioration of the marine ecological environment in many regions is closely related to biological invasions caused by ship ballast water discharge, leading to a series of problems such as the reduction of native species and the imbalance of the food chain.

[0004] To address this issue, numerous ship ballast water treatment technologies have emerged. One such attempt is the ship ballast water nitrogen filling and deoxygenation treatment device disclosed in Chinese Patent No. CN221141324U. This device introduces ballast water through an inlet on the top plate and uses components such as a central column, a lifting filter plate, and related sewage discharge mechanisms installed inside the hull to filter and purify the ballast water. Its design concept is to use the coordinated operation of the lifting filter plate and scraper to push impurities out of the sewage discharge port, thereby improving the purity of the water.

[0005] However, in practical applications, this device has revealed many limitations. Its internal floating filter design relies mainly on the buoyancy generated by the rising water flow. This design has inherent flaws. When impurities in the water settle on the outer surface of the filter, it significantly increases the friction between the filter and the water flow and impurities. As the friction increases, the filter not only becomes difficult to rise steadily but may even get stuck, seriously affecting the normal operation and filtration efficiency of the device. Moreover, the device lacks a dedicated nitrogen injection structure, which makes it impossible to evenly distribute nitrogen throughout the water body during nitrogen deoxygenation treatment. Even nitrogen distribution is crucial for effectively reducing the oxygen content in ballast water and inhibiting the activity of aerobic organisms. If the nitrogen is not distributed evenly, some areas will not be effectively nitrogened, failing to achieve comprehensive inactivation of organisms in the ballast water, thus affecting the protection of the marine ecological environment. Summary of the Invention

[0006] In view of the problems mentioned in the background art, the purpose of this invention is to provide an efficient nitrogen filling and deoxygenation treatment device and method for ship ballast water, so as to solve the problem of lack of efficient and uniform nitrogen filling treatment function during the application of the prior art.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0008] A high-efficiency nitrogen-filling and deoxygenation treatment device for ship ballast water includes a frame, a top ring fixedly installed on the top of the frame, an inner frame fixedly installed on the bottom of the top ring, a tank fixedly installed on the inner side of the inner frame, a drive mechanism fixedly installed on the top of the tank, a nitrogen filling mechanism fixedly installed at the output end of the drive mechanism, the nitrogen filling mechanism being rotatably connected to the inside of the tank, a filter mechanism fixedly installed at the bottom of the tank, the top of the filter mechanism being connected to the bottom of the nitrogen filling mechanism, and an external pipe and an exhaust pipe fixedly installed on the upper back of the tank.

[0009] The drive mechanism includes a top cover, which is bolted to the top of the tank. A connecting pipe is rotatably connected to the middle of the top cover. A cross tube is fixedly installed at the bottom of the connecting pipe. An annular tube is fixedly installed on the outside of the cross tube. A nitrogen filling mechanism is installed at the bottom of the annular tube and is connected to the output end of the cross tube. A drive assembly is fixedly installed on one side of the top of the top cover. A mounting bracket is fixedly installed in the middle of the top of the top cover. A rotary joint is installed in the middle of the mounting bracket. The bottom of the rotary joint is connected to the top of the connecting pipe and is rotatably connected to it. A bent pipe is fixedly installed on the top of the rotary joint.

[0010] Furthermore, the drive assembly includes a fixed frame and a driven gear. The fixed frame is fixedly installed on one side of the top of the top cover. A drive motor is fixedly installed on the top of the fixed frame. A drive gear is fixedly installed on the output end of the drive motor. The driven gear is fixedly installed on the outer surface of one end of the connecting pipe that passes through the top cover. The drive gear and the driven gear are meshed together.

[0011] Furthermore, the bent tube is L-shaped, and a connecting flange is fixedly connected to the outer end of the bent tube. Mounting plates are fixedly installed at both ends of the bottom of the frame, and mounting holes are provided at the outer ends of the mounting plates. The mounting holes are countersunk holes.

[0012] Furthermore, the nitrogen filling mechanism includes a nitrogen filling component and a stirring component. The nitrogen filling component is arranged in a ring at equal intervals and fixedly installed on the bottom outer side of the ring tube. The stirring component is fixedly installed in the middle of the bottom of the cross tube. The bottom of the stirring component is connected to the filter mechanism.

[0013] Furthermore, the nitrogen filling assembly includes side pipes, which are arranged in a ring at equal intervals and fixedly installed at the bottom of the ring pipe. Pipe racks are fixedly installed at equal intervals on the inner side of the ring pipe. The pipe racks are T-shaped when viewed from above, and aeration nozzles are fixedly connected at equal intervals on the inner side of the pipe racks.

[0014] Furthermore, scrapers are fixedly installed at equal intervals in a ring at the bottom of the annular tube. The outer side of the scraper is in close contact with the inner wall of the tank. The bottom of the tank is conical. The lower ends of the scraper and the side tube are both inclined inward.

[0015] Furthermore, the stirring assembly includes a rotating shaft, which is fixedly installed at the bottom of the cross, and side rods are fixedly installed at equal intervals on the outer surface of the rotating shaft. Dispersing mesh plates are fixedly installed on the top and bottom of the outer surface of the side rods, and the bottom of the rotating shaft is connected to the top of the filtering assembly.

[0016] Furthermore, the filtration mechanism includes a filter box, which is fixedly installed at the bottom output end of the tank. A filter screen is slidably connected inside the filter box, and a sealing cover is fixedly installed on the outside of the filter screen. The sealing cover is connected to the filter box by a hand-tightening bolt. An anti-clogging component is provided on the top of the filter screen, and the top of the anti-clogging component is connected to the bottom of the rotating shaft. A drain valve is fixedly installed at the bottom output end of the filter box, and a drain pipe is provided at the output end of the drain valve.

[0017] Furthermore, the anti-clogging component includes a retaining shell and a connecting block. The connecting block is rotatably connected to the top center of the filter screen. Cleaning brush plates are fixedly installed at equal intervals on the outer side of the connecting block. The bottom of the cleaning brush plates is fitted and connected to the top of the filter screen. A retaining block is fixedly installed on the top of the cleaning brush plates. The retaining shell is fixedly installed on the bottom of the rotating shaft. The top of the retaining block is inserted into the inside of the retaining shell.

[0018] An efficient method for nitrogen-filled deoxygenation treatment of ship ballast water includes the following steps:

[0019] Step 1: Connect the nitrogen pipeline through the bent pipe, connect the ballast water pipeline through the external pipe, add ballast water through the external pipe, and add the ballast water into the tank.

[0020] Step 2: Nitrogen gas is filled into the tank through a bent pipe, and nitrogen gas is discharged into the tank using a pipe rack with equally spaced pipes and aeration nozzles on the inside.

[0021] Step 3: Start the drive motor. The drive motor drives the drive gear to rotate, which in turn drives the driven gear meshing with it to rotate. The driven gear drives the connecting pipe to rotate, which in turn drives the bottom cross tube to rotate. The cross tube drives the outer annular tube to rotate, which in turn drives the side tube to rotate. The side tube drives the pipe frame to rotate. During the process, the rising gas is discharged through the exhaust pipe.

[0022] Step 4: The drive motor rotates the annular tube, which in turn rotates the bottom scraper. The outer side of the scraper then scrapes against the inner wall of the tank to clean it.

[0023] Step 5: During the driving process, the rotating shaft drives the dispersing screen to rotate, agitating the water. Then, disinfectant is added into the tank to mix the disinfectant with the ballast water evenly.

[0024] Step Six: After the ballast water treatment is completed, open the drain valve to allow the ballast water to be discharged through the drain valve and drain pipe at the bottom of the filter box. Drive the motor to drive the gear transmission, so that the rotating shaft drives the retaining box, retaining block, and connecting block, and drives the cleaning brush to brush the outer surface of the filter screen to avoid clogging. When cleaning is required, loosen the hand-tightening screw to remove the filter screen for cleaning. After cleaning, insert and tighten the screw to fix it. When installing, adjust the retaining box inlet so that the retaining block is inserted into the retaining box to complete the installation.

[0025] In summary, the present invention has the following main beneficial effects:

[0026] First, when the device is running, the drive motor is started, and the motor drives the drive gear to rotate. The drive gear meshes with the driven gear to rotate synchronously. This transmission drives the connecting pipe, cross pipe, ring pipe, side pipe and pipe rack to rotate in sequence, connecting the bent pipe to the nitrogen pipeline. Nitrogen gas is evenly filled into the tank through the pipe rack with aeration nozzles arranged at equal intervals. A large number of tiny bubbles quickly fill all parts of the tank, allowing the nitrogen gas to evenly remove oxygen from the ballast water. At the same time, the exhaust pipe is used to discharge the floating gas, and the external pipe is convenient for adding ballast water, which provides convenience for the operation of the device.

[0027] Secondly, when the drive motor rotates the annular tube, the annular tube drives the bottom scraper to scrape and clean the inner wall of the tank, preventing dust and impurities from adhering. At the same time, the rotating shaft drives the dispersing screen to rotate, which can promote the uniform mixing of disinfectant with ballast water when adding disinfectant, achieving efficient disinfection. In addition, the dispersing screen will also break up the bubbles sprayed from the aeration nozzles, further promoting the reaction and replacement of nitrogen with water, comprehensively improving the water treatment effect, and highlighting the advantages of the synergistic cooperation between the drive and nitrogen filling mechanisms.

[0028] Third, after the ballast water treatment is completed, open the drain valve, drive the motor to drive the active and driven gear transmission, so that the rotating shaft drives the locking case, locking block, and connecting block, and finally drives the cleaning brush plate to continuously brush the surface of the filter screen. The filter screen plate filters out sediment, and the cleaning brush plate prevents clogging, ensuring that the device has a good anti-clogging function. After the treatment is completed, loosen the hand-tightening screw to remove the filter screen for cleaning. After cleaning, insert it again and tighten the screw to fix it. When installing, adjust the position of the locking case to facilitate the insertion of the locking block, which facilitates quick installation and removal of the filter screen and improves the convenience of cleaning and maintenance of the device. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0031] Figure 3 This is a bottom-view structural diagram of the present invention;

[0032] Figure 4 This is a schematic diagram of the overall structure of the drive mechanism, nitrogen filling mechanism and filtration mechanism of the present invention;

[0033] Figure 5 This is a rear view schematic diagram of the driving mechanism, nitrogen filling mechanism and filtration mechanism of the present invention;

[0034] Figure 6 This is a front view schematic diagram of the drive mechanism, nitrogen filling mechanism and filtration mechanism of the present invention;

[0035] Figure 7 This is a schematic diagram of the nitrogen filling mechanism of the present invention;

[0036] Figure 8 This is the invention Figure 6 A magnified structural diagram at point A.

[0037] Reference numerals: 1. Frame; 2. Top ring; 3. Internal frame; 4. Tank body; 5. Drive mechanism; 51. Top cover; 52. Connecting pipe; 53. Cross tube; 54. Rotary joint; 55. Mounting bracket; 56. Drive assembly; 561. Fixing bracket; 562. Driven gear; 563. Drive motor; 564. Drive gear; 57. Bending tube; 58. Ring tube; 59. Scraper; 6. Nitrogen filling mechanism; 61. Nitrogen filling assembly; 611. Side tube; 612. 613. Pipe rack; 62. Aeration nozzle; 62. Mixing assembly; 621. Rotating shaft; 622. Side rod; 623. Dispersing mesh plate; 7. Filtration mechanism; 71. Filter box; 72. Filter screen; 73. Sealing cover; 74. Anti-clogging assembly; 741. Clamping case; 742. Connecting block; 743. Cleaning brush plate; 744. Clamping block; 75. Drain valve; 76. Pipeline; 8. Connecting flange; 9. Mounting plate; 10. Mounting hole; 11. External connecting pipe; 12. Exhaust pipe. Detailed Implementation

[0038] Example

[0039] refer to Figures 1 to 8 This embodiment of a high-efficiency ship ballast water nitrogen filling and deoxygenation treatment device includes a frame 1, a top ring 2 fixedly installed on the top of the frame 1, an inner frame 3 fixedly installed on the bottom of the top ring 2, a tank 4 fixedly installed on the inner side of the inner frame 3, a drive mechanism 5 fixedly installed on the top of the tank 4, a nitrogen filling mechanism 6 fixedly installed at the output end of the drive mechanism 5, the nitrogen filling mechanism 6 being rotatably connected to the inside of the tank 4, a filter mechanism 7 fixedly installed at the bottom of the tank 4, the top of the filter mechanism 7 being connected to the bottom of the nitrogen filling mechanism 6, and an external pipe 11 and an exhaust pipe 12 fixedly installed on the upper back of the tank 4.

[0040] The drive mechanism 5 includes a top cover 51, which is bolted to the top of the tank 4. A connecting pipe 52 is rotatably connected to the middle of the top cover 51. A cross tube 53 is fixedly installed at the bottom of the connecting pipe 52. An annular tube 58 is fixedly installed on the outside of the cross tube 53. A nitrogen filling mechanism 6 is installed at the bottom of the annular tube 58. The nitrogen filling mechanism 6 is connected to the output end of the cross tube 53. A drive assembly 56 is fixedly installed on one side of the top of the top cover 51. A mounting bracket 55 is fixedly installed in the middle of the top of the top cover 51. A rotary joint 54 is installed in the middle of the mounting bracket 55. The bottom of the rotary joint 54 is connected to the top of the connecting pipe 52 and they are rotatably connected. A bent pipe 57 is fixedly installed on the top of the rotary joint 54. The drive mechanism 5 is installed on the top of the tank 4, and the top cover 51, which is bolted to the tank 4, is connected to the tank 4. The connecting pipe 52, which is rotatably connected to the middle of the top cover 51, rotates under the action of the drive component 56, driving the bottom cross tube 53 and the outer annular tube 58 to rotate. The nitrogen filling mechanism 6 is installed at the bottom of the annular tube 58 and is connected to the output end of the cross tube 53. When the connecting pipe 52 rotates, it drives the nitrogen filling mechanism 6 to rotate inside the tank 4. The rotary joint 54, which is installed on the middle mounting bracket 55 at the top of the top cover 51, is connected to the top of the connecting pipe 52 at the bottom and can rotate relative to it. The bent pipe 57 fixed at the top is used to connect the nitrogen pipeline to fill nitrogen. The filter mechanism 7 at the bottom of the tank 4 is connected to the bottom of the nitrogen filling mechanism 6 and is used to filter the treated ballast water. The outer pipe 11 at the upper back of the tank 4 is used to input ballast water. The exhaust pipe 12 is used to discharge the gas that floats during the treatment process, thereby realizing the nitrogen filling and deoxygenation treatment of the ship's ballast water.

[0041] refer to Figures 1-7The drive assembly 56 includes a fixed frame 561 and a driven gear 562. The fixed frame 561 is fixedly installed on one side of the top of the top cover 51. A drive motor 563 is fixedly installed on the top of the fixed frame 561. A drive gear 564 is fixedly installed on the output end of the drive motor 563. The driven gear 562 is fixedly installed on the outer surface of one end of the connecting pipe 52 that passes through the top cover 51. The drive gear 564 and the driven gear 562 are meshed together. The bent pipe 57 is L-shaped. A connecting flange 8 is fixedly connected to the outer end of the bent pipe 57. Mounting plates 9 are fixedly installed at both ends of the bottom of the frame 1. Mounting holes 10 are provided on the outer ends of the mounting plates 9. The mounting holes 10 are countersunk holes. The fixed frame 561 is firmly installed on one side of the top of the top cover 51 to provide support for the drive motor 563. The drive motor 563 is installed on the top of the fixed frame 561. After starting, its output end drives the drive motor 563. The drive gear 564 rotates, and the driven gear 562 is fixed on the outer surface of the end of the connecting pipe 52 that passes through the top cover 51. The drive gear 564 and the driven gear 562 mesh tightly. In this way, the power of the drive motor 563 is transmitted to the driven gear 562 through the drive gear 564, which in turn drives the connecting pipe 52 to rotate. The rotation of the connecting pipe 52 will drive the cross tube 53 at its bottom and the annular tube 58 on the outside of the cross tube 53 to rotate, thereby realizing the operation of the components connected to the annular tube 58. The bent pipe 57 is L-shaped, and the connecting flange 8 at the outer end is convenient to connect to the external nitrogen pipeline to ensure that nitrogen can be smoothly filled into the equipment. The mounting plates 9 at both ends of the bottom of the frame 1 are provided with countersunk holes. This design makes it convenient to use bolts and other connecting parts to fix the equipment in the required position, enhance the stability of the equipment during operation, and ensure the smooth progress of the entire ship ballast water nitrogen filling and deoxygenation treatment process.

[0042] refer to Figures 4-7The nitrogen filling mechanism 6 includes a nitrogen filling component 61 and a stirring component 62. The nitrogen filling component 61 is fixedly installed on the outer side of the bottom of the annular tube 58 in a ring-shaped arrangement with equal spacing. The stirring component 62 is fixedly installed in the middle of the bottom of the cross tube 53. The bottom of the stirring component 62 is connected to the filter mechanism 7. The nitrogen filling component 61 includes a side tube 611, which is fixedly installed on the bottom of the annular tube 58 in a ring-shaped arrangement with equal spacing. A pipe rack 612 is fixedly installed on the inner side of the annular tube 58 with equal spacing. The pipe rack 612 has a T-shaped shape when viewed from above. Aeration nozzles 613 are fixedly connected on the inner side of the pipe rack 612 with equal spacing. The bottom of the annular tube 58... Scrapers 59 are fixedly installed in a ring at equal intervals. The outer side of the scrapers 59 is fitted to the inner wall of the tank 4. The bottom of the tank 4 is conical. The lower ends of the scrapers 59 and the side tubes 611 are inclined inward. The stirring assembly 62 includes a rotating shaft 621, which is fixedly installed at the bottom of the cross. Side rods 622 are fixedly installed at equal intervals on the outer surface of the rotating shaft 621. Dispersing mesh plates 623 are fixedly installed at the top and bottom of the outer surface of the side rods 622. The bottom of the rotating shaft 621 is connected to the top of the filter assembly. The nitrogen filling assembly 61 is arranged in a ring at equal intervals on the outer side of the bottom of the ring tube 58. The pipe 611 is also fixed to the bottom of the annular pipe 58 at equal intervals. The pipe rack 612 inside the side pipe 611 is T-shaped and is equipped with aeration nozzles 613 at equal intervals. When the drive mechanism 5 drives the annular pipe 58 to rotate, the nitrogen filling component 61 rotates accordingly, and nitrogen is evenly filled into the water in the tank 4 through the aeration nozzles 613, so that the nitrogen and water can fully contact each other. At the same time, the scraper 59 at the bottom of the annular pipe 58 rotates with the annular pipe 58. Its outer side is in contact with the inner wall of the conical tank 4, and its lower end is inclined inward, which can effectively scrape the inner wall, prevent impurities from adhering, and guide impurities to collect at the bottom of the tank 4. The stirring component 62 is located at the cross tube 53. At the bottom center, the rotating shaft 621 is fixed to the bottom of the cross. The side rods 622 on the outer surface of the rotating shaft 621 are equipped with dispersing mesh plates 623 on both the top and bottom. When the equipment is running, the rotating shaft 621 rotates with the cross tube 53, driving the dispersing mesh plates 623 to agitate the water. On the one hand, when other treatment agents need to be added, the treatment agents can be mixed more evenly with the ballast water. On the other hand, it can further disperse the nitrogen bubbles sprayed from the aeration nozzles 613, enhancing the reaction and replacement effect of nitrogen and water. In addition, the bottom of the rotating shaft 621 is connected to the filtration mechanism 7, providing power support for the operation of the filtration mechanism 7 and ensuring the high efficiency of the entire treatment process.

[0043] refer to Figures 1-5 and Figure 8The filtration mechanism 7 includes a filter box 71, which is fixedly installed at the bottom output end of the tank 4. A filter screen 72 is slidably connected inside the filter box 71, and a sealing cover 73 is fixedly installed on the outside of the filter screen 72. The sealing cover 73 is connected to the filter box 71 by a hand-tightening bolt. An anti-clogging component 74 is provided on the top of the filter screen 72, and the top of the anti-clogging component 74 is connected to the bottom of the rotating shaft 621. A drain valve 75 is fixedly installed at the bottom output end of the filter box 71, and a drain pipe 76 is provided at the output end of the drain valve 75. The anti-clogging component 74 includes... The system includes a retaining housing 741 and a connecting block 742. The connecting block 742 is rotatably connected to the top center of the filter screen 72. Cleaning brush plates 743 are fixedly installed at equal intervals on the outer side of the connecting block 742. The bottom of the cleaning brush plates 743 is fitted and connected to the top of the filter screen 72. A retaining block 744 is fixedly installed on the top of the cleaning brush plates 743. The retaining housing 741 is fixedly installed on the bottom of the rotating shaft 621. The top of the retaining block 744 is inserted into the inside of the retaining housing 741. The filter box 71 is fixed to the bottom output end of the tank 4 and contains a sliding filter screen 72 for use in... The treated ballast water is filtered. A sealing cover 73 is installed on the outside of the filter screen 72 and connected to the filter box 71 by hand-tightening bolts to ensure good sealing during the filtration process. An anti-clogging component 74 is installed above the filter screen 72. This component is connected to the bottom of the rotating shaft 621. When the rotating shaft 621 rotates, it drives the retaining housing 741 fixed at its bottom to rotate. A retaining block 744 is inserted into the retaining housing 741 and fixed to the top of the connecting block 742. The connecting block 742 is rotatably connected to the middle of the top of the filter screen 72, and cleaning filters are installed at equal intervals on its outer side. The cleaning brush plate 743 is attached to the top of the filter screen 72 at its bottom. As the connecting block 742 rotates, the cleaning brush plate 743 continuously brushes the surface of the filter screen 72. During the process of ballast water being discharged from the filter box 71 through the drain valve 75 and the drain pipe 76, this brushing action can prevent impurities from clogging the filter screen 72 and ensure the filtration effect. After the treatment is completed, the hand-tightened bolts of the sealing cover 73 can be loosened to remove the filter screen 72 from the filter box 71 for cleaning and maintenance. After maintenance, it can be reinstalled to ensure the continuous and stable operation of the filtration mechanism 7.

[0044] An efficient method for nitrogen-filled deoxygenation treatment of ship ballast water includes the following steps:

[0045] Step 1: Connect the nitrogen pipeline through the bent pipe 57 and the ballast water pipeline through the external pipe 11. Add ballast water through the external pipe 11 and add the ballast water into the inside of the tank 4.

[0046] Step 2: Nitrogen gas is filled into the tank 4 through the bent pipe 57, and nitrogen gas is discharged into the tank 4 by using the pipe rack 612 with equally spaced pipes and aeration nozzles 613 on the inside.

[0047] Step 3: Start the drive motor 563. The drive motor 563 drives the drive gear 564 to rotate. The drive gear 564 drives the driven gear 562 that meshes with it to rotate. The driven gear 562 drives the connecting pipe 52 to rotate. The connecting pipe 52 drives the bottom cross pipe 53 to rotate. The cross pipe 53 drives the outer annular pipe 58 to rotate. The annular pipe 58 drives the side pipe 611 to rotate. The side pipe 611 drives the pipe frame 612 to rotate. During the process, the floating gas is discharged through the exhaust pipe 12.

[0048] Step 4: Drive motor 563 drives annular tube 58 to rotate, annular tube 58 drives bottom scraper 59 to rotate, scraper 59 on the outside to scrape and clean the inner wall of tank 4.

[0049] Step 5: During the driving process, the rotating shaft 621 drives the dispersing mesh plate 623 to rotate, agitating the water. Then, disinfectant is added into the tank 4 to make the disinfectant and ballast water mix evenly.

[0050] Step Six: After the ballast water treatment is completed, open the drain valve 75 to allow the ballast water to be discharged through the drain valve 75 and drain pipe 76 at the bottom of the filter box 71. Drive the drive motor 563 to drive the gear transmission, so that the rotating shaft 621 drives the retaining shell 741, retaining block 744, and connecting block 742, which drives the cleaning brush plate 743 to brush the outer surface of the filter screen 72 to avoid clogging. When cleaning is required, loosen the hand-tightening screw to remove the filter screen 72 for cleaning. After cleaning, insert and tighten the screw to fix it. When installing, adjust the inlet of the retaining shell 741 so that the retaining block 744 can be inserted into the retaining shell 741 to complete the installation.

[0051] Operating principle and advantages: During the use of this device, the drive motor 563 is started, which drives the drive gear 564 to rotate. The drive gear 564 and the driven gear 562 are meshed, so the rotation of the drive gear 564 will drive the driven gear 562 to rotate. After the driven gear 562 rotates, it will synchronously drive the connecting pipe 52 to rotate. The rotation of the connecting pipe 52 will drive the cross tube 53 at its bottom to rotate. The rotation of the cross tube 53 will drive the annular tube 58 on its outer side to rotate. The rotation of the annular tube 58 will drive the side tube 611 to rotate. The rotation of the side tube 611 will then drive the tube frame 612 to rotate. Connect the bent pipe 57 on the outside of the rotary joint 54 to the nitrogen pipeline. Nitrogen can be filled into the tank 4 through the bent pipe 57. The pipe racks 612 are arranged at equal intervals, and the inner side of the pipe racks 612 is equipped with aeration nozzles 613. In this way, nitrogen can be evenly discharged into the tank 4 through the aeration nozzles 613 on each pipe rack 612 inside the side pipe 611, forming bubbles and quickly filling all positions inside the tank 4, so that nitrogen can remove oxygen from the ballast water more evenly. During the treatment process, the floating gas is discharged through the exhaust pipe 12. The outer pipe 11 can be used to add ballast water, which facilitates the operation and use of this device.

[0052] The drive mechanism 5 and the nitrogen filling mechanism 6 of this device work together. When the drive motor 563 drives the annular tube 58 to rotate, the annular tube 58 will drive the scrapers 59 at its bottom to rotate. The outer side of the scraper 59 is in contact with the inner wall of the tank 4. When the scraper 59 rotates, it will scrape the inner wall of the tank 4 to prevent dust and impurities from adhering to the inner wall of the tank 4. During this driving process, the rotating shaft 621 will drive the dispersing screen 623 to rotate. The rotation of the dispersing screen 623 will agitate the water. When disinfectant needs to be added, the rotation of the dispersing screen 623 can make the disinfectant and ballast water evenly mixed, thereby disinfecting the ballast water efficiently. Moreover, the rotation of the dispersing screen 623 will also agitate the bubbles sprayed from the aeration nozzle 613 and break them up. This agitation can promote the reaction and replacement of nitrogen and water, and improve the water treatment effect.

[0053] During the use of this device, after the ballast water treatment is completed, the drain valve 75 is opened, and the ballast water will be discharged through the drain valve 75 and drain pipe 76 at the bottom of the filter box 71. During the discharge of the ballast water, the drive motor 563 drives the active gear 564 and the driven gear 562 to mesh and transmit power, which in turn drives the rotating shaft 621 at the bottom of the cross tube 53 to rotate. The rotation of the rotating shaft 621 will drive the retainer 741 at its bottom to rotate. The rotation of the retainer 741 will drive the retaining block 744 to drive the connecting block 742 to rotate. The rotation of the connecting block 742 will drive the cleaning brush plate 743 to rotate. The cleaning brush plate 743 will continuously brush the outer surface of the filter screen 72. During the filtration process, the filter screen 72 will clean the sediment on the outer surface of the filter screen 72. The filtration process, along with the agitation and brushing of the cleaning brush plate 743, prevents sediment from clogging the filter screen 72, providing the device with good anti-clogging capabilities. After the ballast water treatment is complete, loosening the hand-tightening screw allows the filter screen 72 inside the filter box 71 to be removed for cleaning. After cleaning, the filter screen 72 is inserted back into the filter box 71, and the hand-tightening screw is then turned to connect it to the filter box 71. During installation, the inlet of the retaining box 741 is adjusted to the front. After the filter screen 72 is installed, the retaining block 744 will insert into the retaining box 741, facilitating quick and easy installation and removal of the filter screen 72 as needed. This facilitates cleaning and maintenance of the device and improves its usability.

Claims

1. A high efficiency ship ballast water nitrogenation deoxygenation treatment plant comprising a frame (1), characterized in that: The top of the frame (1) is fixedly installed with a top ring (2), the bottom of the top ring (2) is fixedly installed with an inner shelf (3), the inner side of the inner shelf (3) is fixedly installed with a tank body (4), the top of the tank body (4) is fixedly installed with a driving mechanism (5), the output end of the driving mechanism (5) is fixedly installed with a nitrogen charging mechanism (6), the nitrogen charging mechanism (6) is rotationally connected to the inside of the tank body (4), the bottom of the tank body (4) is fixedly installed with a filtering mechanism (7), the top of the filtering mechanism (7) is connected with the bottom of the nitrogen charging mechanism (6), the back upper end of the tank body (4) is fixedly installed with an external pipe (11) and an exhaust pipe (12); The driving mechanism (5) comprises a top cover (51), the top cover (51) is installed on the top of the tank body (4) through bolts, the middle part of the top cover (51) is rotationally connected with a connecting pipe (52), the bottom of the connecting pipe (52) is fixedly installed with a cross pipe (53), the outer side of the cross pipe (53) is fixedly installed with a ring-shaped pipe (58), the nitrogen charging mechanism (6) is installed at the bottom of the ring-shaped pipe (58), the output end of the nitrogen charging mechanism (6) and the cross pipe (53) are communicated, one side of the top of the top cover (51) is fixedly installed with a driving assembly (56), the top of the top cover (51) is fixedly installed with a mounting bracket (55), the middle part of the mounting bracket (55) is installed with a rotary joint (54), the bottom of the rotary joint (54) and the top of the connecting pipe (52) are communicated and rotationally connected with each other, the top of the rotary joint (54) is fixedly installed with a bent pipe (57); The nitrogen charging mechanism (6) comprises a nitrogen charging assembly (61) and a stirring assembly (62), the nitrogen charging assembly (61) is fixedly installed on the bottom outer side of the ring-shaped pipe (58) in an equidistant annular arrangement, the stirring assembly (62) is fixedly installed at the bottom middle part of the cross pipe (53), the bottom of the stirring assembly (62) is connected with the filtering mechanism (7); The nitrogen charging assembly (61) comprises a side pipe (611), the side pipe (611) is fixedly installed on the bottom of the ring-shaped pipe (58) in an equidistant annular arrangement, the inner side of the ring-shaped pipe (58) is fixedly installed with a pipe bracket (612) at equal intervals, the pipe bracket (612) is arranged in a T-shaped shape in plan view, the inner side of the pipe bracket (612) is fixedly connected with an aeration nozzle (613) at equal intervals; The bottom of the ring-shaped pipe (58) is fixedly installed with a scraper (59) in an equidistant annular arrangement, the outer side of the scraper (59) is connected with the inner wall of the tank body (4), the bottom of the tank body (4) is arranged in a conical shape, the lower end of the scraper (59) and the side pipe (611) are both arranged in an inclined manner towards the inner side; The stirring assembly (62) comprises a rotating shaft (621) fixedly installed at the bottom of the cross, and side rods (622) fixedly installed at equal intervals on the outer surface of the rotating shaft (621); the outer surface top and bottom of each side rod (622) is fixedly installed with a dispersion mesh plate (623); the bottom of the rotating shaft (621) is connected with the top of the filtering assembly; The filtering mechanism (7) comprises a filtering box (71) fixedly installed at the bottom output end of the tank body (4), a filtering screen (72) slidably connected in the filtering box (71), a sealing cover (73) fixedly installed at the outer side of the filtering screen (72), the sealing cover (73) connected with the filtering box (71) through hand-screwing bolts, and a anti-blocking assembly (74) arranged at the top of the filtering screen (72) and connected with the bottom of the rotating shaft (621); and a drain valve (75) fixedly installed at the bottom output end of the filtering box (71), and a drain pipe (76) arranged at the output end of the drain valve (75).

2. The efficient ship ballast water nitrogen charging and deoxidizing treatment device according to claim 1, characterized in that: The driving assembly (56) comprises a fixed frame (561) and a driven gear (562); the fixed frame (561) is fixedly installed at one side of the top of the top cover (51); a driving motor (563) is fixedly installed at the top of the fixed frame (561); a driving gear (564) is fixedly installed at the output end of the driving motor (563); and the driven gear (562) is fixedly installed at the outer surface of one end of the connecting pipe (52) penetrating through the top cover (51); and the driving gear (564) is in meshing connection with the driven gear (562).

3. The efficient ship ballast water nitrogen charging and deoxidizing treatment device according to claim 1, characterized in that: The bent pipe (57) is in L-shaped arrangement; the outer end of the bent pipe (57) is fixedly connected with a connecting flange (8); the bottom of the frame (1) is fixedly installed with mounting plates (9) at both ends; and mounting holes (10) are arranged at the outer end of the mounting plates (9) and are in counter-sunk hole arrangement.

4. The efficient ship ballast water nitrogen charging and deoxidizing treatment device according to claim 3, characterized in that: The anti-blocking assembly (74) comprises a clamping shell (741) and a connecting block (742); the connecting block (742) is rotatably connected at the top middle of the filtering screen (72); cleaning brush plates (743) are fixedly installed at equal intervals at the outer side of the connecting block (742); the bottom of each cleaning brush plate (743) is in abutting connection with the top of the filtering screen (72); clamping blocks (744) are fixedly installed at the top of each cleaning brush plate (743); the clamping shell (741) is fixedly installed at the bottom of the rotating shaft (621); and the top of each clamping block (744) is inserted into the clamping shell (741).

5. A high-efficiency ship ballast water nitrogen-charged deoxidation treatment method using the high-efficiency ship ballast water nitrogen-charged deoxidation treatment equipment of claim 4, characterized in that, The method comprises the following steps: Step one: connecting the nitrogen pipeline through the bent pipe (57) and connecting the ballast water pipeline through the external connecting pipe (11); adding the ballast water through the external connecting pipe (11) and adding the ballast water into the tank body (4); Step two: filling the nitrogen into the tank body (4) through the bent pipe (57) and arranging the pipe racks (612) at equal intervals and with air spargers (613) arranged at the inner side to discharge the nitrogen into the tank body (4); Step three: start the drive motor (563), drive motor (563) driven gear (564) rotation, driving gear (564) drive gear (562) rotation, driven gear (562) drive connecting pipe (52) rotation, connecting pipe (52) drive bottom cross pipe (53) rotation, cross pipe (53) drive outside ring pipe (58) rotation, ring pipe (58) drive side pipe (611) rotation, side pipe (611) drive pipe rack (612) rotation, processing, through the exhaust pipe (12) discharge of floating gas; Step four: drive motor (563) drive ring pipe (58) rotation, ring pipe (58) drive bottom scraper (59) rotation, scraper (59) outside fit tank (4) wall to scratch clean; Step five: drive process, rotating shaft (621) drive dispersion mesh plate (623) rotation, stirring water, add disinfectant into the tank (4) inside, make disinfectant and ballast water evenly mixed; Step six: ballast water treatment is completed, open the drain valve (75) make ballast water through the filter box (71) bottom drain valve (75) and discharge pipe (76) discharge, drive motor (563) drive gear transmission, rotating shaft (621) drive clamping shell (741), clamping block (744), connecting block (742), drive cleaning brush plate (743) on the outer surface of the filter screen (72) brush to avoid blockage, need to clean loose hand screw type screw removal filter screen (72) clean, after cleaning, insert and twist screw fixed, installation when adjusting the clamping shell (741) inlet, make clamping block (744) inserted into the clamping shell (741) can be completed installation.

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