Efficient ship ballast water nitrogen charging and oxygen removing treatment equipment and method thereof

Abstract

The invention discloses efficient ship ballast water nitrogen filling and deoxidizing treatment equipment and a method thereof, and relates to the technical field of ship ballast water treatment.The efficient ship ballast water nitrogen filling and deoxidizing treatment equipment comprises a frame, a top ring is fixedly mounted at the top of the frame, an inner mounting frame is fixedly mounted at the bottom of the top ring, and a tank body is fixedly mounted on the inner side of the inner mounting frame. By adopting the structure, when the device runs, the driving motor is started, the motor drives the driving gear to rotate, the driving gear is meshed with the driven gear to enable the driven gear to rotate synchronously, the transmission sequentially drives the connecting pipe, the cross pipe, the annular pipe, the side pipe and the pipe frame to rotate, and the bent pipe is connected with a nitrogen pipeline; nitrogen is evenly filled into the tank body through the pipe frames which are arranged at equal intervals and provided with the aeration nozzles, a large number of tiny bubbles rapidly fill all positions of the tank body, oxygen in ballast water is evenly removed through the nitrogen, meanwhile, the exhaust pipe is used for exhausting floating gas, the ballast water is conveniently added through the external pipe, and convenience is provided for operation of the device.

Description

Technical Field

[0001] The invention belongs to the technical field of ship ballast water treatment, and in particular relates to a highly efficient ship ballast water nitrogen filling and deoxygenation treatment device and a method thereof. Background Art

[0002] The nitrogen filling and deoxygenation treatment of ship ballast water is an important technology for protecting the marine ecological environment. During the voyage of ships, a large amount of ballast water will be loaded to maintain balance and stability. However, these ballast waters often carry various marine organisms. When ships discharge ballast water in different sea areas, it is easy to cause biological invasion and destroy the local marine ecological balance. The nitrogen filling and deoxygenation treatment technology of ship ballast water is developed to address this problem. This technology fills nitrogen into the ballast water tank and replaces the oxygen originally dissolved in the water by using the characteristics of nitrogen's stable chemical properties and its difficulty in reacting with other substances. With the continuous filling of nitrogen, the oxygen content in the ballast water gradually decreases. When the oxygen content decreases to a certain level, most of the aerobic organisms carried in the ballast water cannot obtain enough oxygen to maintain life activities, their metabolism is inhibited, their growth and reproduction speed slows down, and even death occurs. Through this nitrogen filling and deoxygenation treatment method, the number and activity of organisms carried in the ballast water can be effectively reduced, thereby significantly reducing the potential harm caused by the discharge of ballast water by ships to the marine ecological environment and protecting marine biodiversity and ecological balance.

[0003] As global ocean transportation is booming, the treatment of ship ballast water has become increasingly prominent and has become 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 own stability and safety. However, these ballast waters often carry various marine organisms, from tiny bacteria, plankton to small aquatic animals. When ships discharge ballast water in other places, these foreign organisms may cause serious biological invasions and cause great damage to the balance of the local marine ecosystem. According to relevant studies, the deterioration of the marine ecological environment in many areas is closely related to the biological invasion caused by the discharge of ship ballast water, resulting in a series of problems such as a reduction in the number of local species and an imbalance in the ecological chain.

[0004] To solve this problem, many ship ballast water treatment technologies have emerged. The ship ballast water nitrogen filling and deoxygenation treatment device disclosed in the Chinese patent with the announcement number "CN221141324U" is one of the attempts. The device introduces ballast water through the water inlet on the top plate, and uses the central column, lifting filter plate and related sewage discharge mechanism installed inside the shell to filter and purify the ballast water. Its design concept is to use the coordinated operation of the lifting filter plate and the scraper to push the impurities out of the sewage outlet, so as to achieve the purpose of improving the purity of water quality;

[0005] However, in actual application scenarios, the device has exposed many limitations. The up and down floating filter screen design adopted inside it mainly relies on the buoyancy generated by the rising water flow for propulsion. This design has inherent defects. When impurities in the water are deposited on the outer surface of the filter screen, the friction between the filter screen and the water flow and impurities will be significantly increased. As the friction continues to increase, the filter screen will not only be difficult to rise stably, but may even get stuck, seriously affecting the normal operation and filtration efficiency of the device. Moreover, the device lacks a special nitrogen injection structure, which makes it impossible to evenly fill the water with nitrogen during nitrogen filling and deoxygenation treatment. Uniform nitrogen filling is crucial to effectively reduce the oxygen content in ballast water and inhibit the activity of aerobic organisms. If the nitrogen is unevenly distributed, the nitrogen filling effect will be poor in some areas, and the inactivation of organisms in ballast water cannot be fully achieved, which in turn affects the protection effect of the marine ecological environment. Summary of the invention

[0006] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide an efficient ship ballast water nitrogen filling and deoxygenation treatment equipment and method, 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 technical objectives of the present invention are achieved through the following technical solutions:

[0008] An efficient ship ballast water nitrogen filling and deoxygenation treatment equipment comprises a frame, a top ring is fixedly installed on the top of the frame, an inner frame is fixedly installed on the bottom of the top ring, a tank body is fixedly installed on the inner side of the inner frame, a driving mechanism is fixedly installed on the top of the tank body, a nitrogen filling mechanism is fixedly installed on the output end of the driving mechanism, the nitrogen filling mechanism is rotatably connected to the inside of the tank body, a filtering mechanism is fixedly installed on the bottom of the tank body, the top of the filtering mechanism is connected to the bottom of the nitrogen filling mechanism, and an external pipe and an exhaust pipe are fixedly installed on the upper end of the back of the tank body;

[0009] The driving mechanism comprises a top cover, which is mounted on the top of the tank body by bolts, a connecting pipe is rotatably connected to the middle of the top cover, a cross pipe is fixedly mounted on the bottom of the connecting pipe, an annular pipe is fixedly mounted on the outer side of the cross pipe, the nitrogen charging mechanism is mounted on the bottom of the annular pipe, the nitrogen charging mechanism is connected to the output end of the cross pipe, a driving assembly is fixedly mounted on one side of the top of the top cover, a mounting frame is fixedly mounted in the middle of the top of the top cover, a rotating joint is mounted in the middle of the mounting frame, the bottom of the rotating joint is connected to the top of the connecting pipe and are rotatably connected to each other, and a bending pipe is fixedly mounted on the top of the rotating joint.

[0010] Furthermore, the driving assembly includes a fixed frame and a driven gear, the fixed frame is fixedly installed on the top side of the top cover, a driving motor is fixedly installed on the top of the fixed frame, a driving gear is fixedly installed on the output end of the driving motor, and the driven gear is fixedly installed on the outer surface of the connecting pipe passing through one end of the top cover, and the driving gear and the driven gear are meshingly connected.

[0011] Furthermore, the bending tube is L-shaped, the outer end of the bending tube is fixedly connected to a connecting flange, both ends of the bottom of the frame are fixedly installed with mounting plates, the outer end of the mounting plate is provided with a mounting hole, and the mounting hole is set as a countersunk hole.

[0012] Furthermore, the nitrogen charging mechanism includes a nitrogen charging component and a stirring component. The nitrogen charging components are arranged in a ring shape with equal intervals and fixedly installed on the outside of the bottom of the annular 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 filtering mechanism.

[0013] Furthermore, the nitrogen filling assembly includes side pipes, which are arranged in a ring shape at equal intervals and fixedly installed on the bottom of the ring-shaped pipe. A pipe rack is fixedly installed on the inner side of the ring-shaped pipe at equal intervals. The top view of the pipe rack is T-shaped, and aeration nozzles are fixedly connected to the inner side of the pipe rack at equal intervals.

[0014] Furthermore, scrapers are fixedly installed at the bottom of the annular tube in an annular arrangement at equal intervals, the outer side of the scraper is fitted and connected to the inner wall of the tank body, the bottom of the tank body is conical, and the lower ends of the scraper and the side tube are inclined inward.

[0015] Furthermore, the stirring assembly includes a rotating shaft, which is fixedly installed at the bottom of the cross. Side rods are fixedly installed at even intervals on the outer surface of the rotating shaft. Dispersion screens are fixedly installed on the top and bottom of the outer surface of the side rods. The bottom of the rotating shaft is connected to the top of the filter assembly.

[0016] Furthermore, the filtering mechanism includes a filter box, which is fixedly installed at the bottom output end of the tank body, and a filter screen is slidably connected to the inside of the filter box. A sealing cover is fixedly installed on the outside of the filter screen, and the sealing cover is connected to the filter box by hand-tightened bolts. An anti-blocking component is provided on the top of the filter screen, and the top of the anti-blocking 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-blocking component includes a card shell and a connecting block, the connecting block is rotatably connected to the middle of the top of the filter screen, a cleaning brush plate is fixedly installed at equal intervals on the outside of the connecting block, the bottom of the cleaning brush plate is fit-connected to the top of the filter screen, a card block is fixedly installed on the top of the cleaning brush plate, the card shell is fixedly installed on the bottom of the rotating shaft, and the top of the card block is inserted into the inside of the card shell.

[0018] An efficient method for treating ship ballast water by nitrogen filling and deoxygenation comprises the following steps:

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

[0020] Step 2: Fill the tank with nitrogen through the bent pipe, and discharge the nitrogen into the tank using a pipe rack that is evenly spaced and has aeration nozzles on the inside;

[0021] Step 3: Start the driving motor, the driving motor drives the driving gear to rotate, the driving gear drives the driven gear meshing with it to rotate, the driven gear drives the connecting pipe to rotate, the connecting pipe drives the bottom cross pipe to rotate, the cross pipe drives the outer annular pipe to rotate, the annular pipe drives the side pipe to rotate, the side pipe drives the pipe rack to rotate, and during the processing, the floating gas is discharged through the exhaust pipe;

[0022] Step 4: The driving motor drives the annular tube to rotate, and the annular tube drives the bottom scraper to rotate, and the outer side of the scraper is attached to the inner wall of the tank to scrape and clean;

[0023] Step 5: During the driving process, the shaft drives the dispersion screen to rotate, stirring the water, and then the disinfectant is added into the tank to evenly mix the disinfectant and ballast water;

[0024] Step 6: 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. The drive motor drives the gear transmission, so that the shaft drives the card shell, card block, and connecting block, and drives the cleaning brush plate 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, then insert and tighten the screw to fix it after cleaning. During installation, adjust the card shell entrance so that the card block is inserted into the card shell to complete the installation.

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

[0026] First, when the device is running, the drive motor is started, the motor drives the active gear to rotate, the active gear meshes with the driven gear to make it rotate synchronously, and this transmission drives the connecting pipe, cross pipe, annular pipe, side pipe and pipe rack to rotate in turn, and the bent pipe is connected to the nitrogen pipeline. Nitrogen is evenly filled into the tank through the pipe rack arranged at equal intervals and equipped with aeration nozzles. A large number of tiny bubbles quickly fill the tank, allowing nitrogen to evenly remove oxygen in 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] Second, when the driving motor drives the annular tube to rotate, the annular tube drives the bottom scraper to scrape and clean the inner wall of the tank to prevent dust and impurities from adhering. At the same time, the shaft drives the dispersion screen to rotate. When adding disinfectant, it can promote its uniform mixing with ballast water to achieve efficient disinfection. In addition, the dispersion screen will also break up the bubbles sprayed by the aeration nozzle, further promoting the reaction and replacement of nitrogen and water, comprehensively improving the water treatment effect, and highlighting the advantages of the coordinated cooperation between the drive and nitrogen charging 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 card shell, card 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 the sediment and the cleaning brush plate prevents blockage to ensure that the device has a good anti-blocking function. After the treatment is completed, loosen the hand-tightening screw to remove the filter screen for cleaning. After cleaning, insert it again and screw it to fix it. Adjust the position of the card shell during installation to facilitate the insertion of the card block, which is convenient for quick disassembly and assembly of the filter screen, and improves the convenience of cleaning and maintenance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0031] Figure 3 It is a schematic diagram of the structure of the present invention when viewed from above;

[0032] Figure 4 It is a schematic diagram of the overall structure of the driving mechanism, nitrogen filling mechanism and filtering mechanism of the present invention;

[0033] Figure 5 It is a rear view structural schematic diagram of the driving mechanism, nitrogen charging mechanism and filtering mechanism of the present invention;

[0034] Figure 6 It is a front view structural diagram of the driving mechanism, nitrogen charging mechanism and filtering mechanism of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the nitrogen charging mechanism of the present invention;

[0036] Figure 8 The present invention Figure 6 A is an enlarged structural diagram of FIG.

[0037] Figure numerals: 1, frame; 2, top ring; 3, internal frame; 4, tank body; 5, driving mechanism; 51, top cover; 52, connecting pipe; 53, cross pipe; 54, rotating joint; 55, mounting frame; 56, driving assembly; 561, fixing frame; 562, driven gear; 563, driving motor; 564, driving gear; 57, bending pipe; 58, annular pipe; 59, scraper; 6, nitrogen charging mechanism; 61, nitrogen charging assembly; 611, side pipe; 612, Pipe rack; 613, aeration nozzle; 62, stirring assembly; 621, rotating shaft; 622, side rod; 623, dispersion screen; 7, filtering mechanism; 71, filter box; 72, filter screen; 73, sealing cover; 74, anti-blocking assembly; 741, card shell; 742, connecting block; 743, cleaning brush plate; 744, card block; 75, drain valve; 76, drain pipe; 8, connecting flange; 9, mounting plate; 10, mounting hole; 11, external pipe; 12, exhaust pipe. DETAILED DESCRIPTION

[0038] Example

[0039] refer to Figures 1 to 8 , an efficient ship ballast water nitrogen filling and deoxygenation treatment equipment of this embodiment includes a frame 1, a top ring 2 is fixedly installed on the top of the frame 1, an inner frame 3 is fixedly installed on the bottom of the top ring 2, a tank body 4 is fixedly installed on the inner side of the inner frame 3, a driving mechanism 5 is fixedly installed on the top of the tank body 4, a nitrogen filling mechanism 6 is fixedly installed on the output end of the driving mechanism 5, the nitrogen filling mechanism 6 is rotatably connected to the inside of the tank body 4, a filtering mechanism 7 is fixedly installed on the bottom of the tank body 4, the top of the filtering mechanism 7 is connected to the bottom of the nitrogen filling mechanism 6, and an external pipe 11 and an exhaust pipe 12 are fixedly installed on the upper end of the back of the tank body 4;

[0040] The driving mechanism 5 includes a top cover 51, which is mounted on the top of the tank body 4 by bolts. A connecting pipe 52 is rotatably connected to the middle of the top cover 51, a cross pipe 53 is fixedly mounted on the bottom of the connecting pipe 52, and an annular pipe 58 is fixedly mounted on the outer side of the cross pipe 53. A nitrogen charging mechanism 6 is mounted on the bottom of the annular pipe 58, and the output end of the nitrogen charging mechanism 6 and the cross pipe 53 are connected. A driving assembly 56 is fixedly mounted on one side of the top of the top cover 51, a mounting frame 55 is fixedly mounted in the middle of the top of the top cover 51, and a rotating joint 54 is mounted in the middle of the mounting frame 55. The bottom of the rotating joint 54 is connected to the top of the connecting pipe 52 and is rotatably connected to each other. A bending pipe 57 is fixedly mounted on the top of the rotating joint 54. The driving mechanism 5 is mounted on the top of the tank body 4, and is connected to the tank body 4 by the top cover 51 fixed by bolts. The connecting pipe 52 rotatably connected in the middle of the top cover 51 rotates under the action of the driving assembly 56, driving the bottom cross pipe 53 and the outer annular pipe 58 to rotate. The nitrogen charging mechanism 6 is installed at the bottom of the annular pipe 58 and is connected with the output end of the cross pipe 53. When the connecting pipe 52 rotates, it drives the nitrogen charging mechanism 6 to rotate in the tank body 4. The bottom of the rotary joint 54 installed on the middle mounting frame 55 at the top of the top cover 51 is connected to the top of the connecting pipe 52 and can rotate relatively. The bent pipe 57 fixed on the top is used to connect the nitrogen pipeline to charge nitrogen. The filtering mechanism 7 at the bottom of the tank body 4 is connected to the bottom of the nitrogen charging mechanism 6 for filtering the treated ballast water. The external pipe 11 at the upper end of the back of the tank body 4 is used to input ballast water, and the exhaust pipe 12 is used to discharge the gas floating during the treatment process, thereby realizing the nitrogen charging and deoxygenation treatment of the ship's ballast water.

[0041] refer to Figure 1-Figure 7The driving assembly 56 includes a fixing frame 561 and a driven gear 562. The fixing frame 561 is fixedly installed on one side of the top of the top cover 51. A driving motor 563 is fixedly installed on the top of the fixing frame 561. A driving gear 564 is fixedly installed on the output end of the driving motor 563. The driven gear 562 is fixedly installed on the outer surface of the connecting pipe 52 that passes through one end of the top cover 51. The driving gear 564 and the driven gear 562 are meshed and connected. The shape of the bending pipe 57 is set in an L shape. The outer end of the bending pipe 57 is fixedly connected with a connecting flange 8. Both ends of the bottom of the frame 1 are fixedly installed with mounting plates 9. The outer end of the mounting plate 9 is provided with a mounting hole 10, and the mounting hole 10 is set as a countersunk hole. The fixing frame 561 is firmly installed on one side of the top of the top cover 51 to provide support for the driving motor 563. The driving motor 563 is installed on the top of the fixing frame 561. After starting, its output end drives The driving gear 564 rotates, and the driven gear 562 is fixed on the outer surface of the connecting pipe 52 that passes through one end of the top cover 51. The driving gear 564 is tightly meshed with the driven gear 562. In this way, the power of the driving motor 563 is transmitted to the driven gear 562 through the driving gear 564, thereby driving 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 outside the cross tube 53 to rotate, thereby realizing the operation of the components connected to the annular tube 58. The bending tube 57 is L-shaped, and the connecting flange 8 at the outer end is convenient for connection with the external nitrogen pipeline to ensure that nitrogen can be smoothly filled into the equipment. Countersunk holes are provided on the mounting plates 9 at both ends of the bottom of the frame 1. This design is convenient for using bolts and other connecting parts to fix the equipment in the desired position, enhance the stability of the equipment during operation, and ensure the smooth progress of the entire ship's ballast water nitrogen filling and deoxygenation treatment process.

[0042] refer to Figure 4-Figure 7The nitrogen charging mechanism 6 includes a nitrogen charging component 61 and a stirring component 62. The nitrogen charging component 61 is arranged in a ring shape at equal intervals and fixedly installed on the outer side of the bottom of the annular tube 58. 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 filtering mechanism 7. The nitrogen charging component 61 includes a side tube 611. The side tube 611 is arranged in a ring shape at equal intervals and fixedly installed on the bottom of the annular tube 58. A pipe rack 612 is fixedly installed on the inner side of the annular tube 58 at equal intervals. The top view of the pipe rack 612 is T-shaped. The inner side of the pipe rack 612 is fixedly connected with aeration nozzles 613 at equal intervals. The bottom of the annular tube 58 Scrapers 59 are fixedly installed in an annular arrangement at equal intervals. The outer side of the scraper 59 is connected to the inner wall of the tank body 4. The bottom of the tank body 4 is conical. The lower ends of the scraper 59 and the side tube 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 on the outer surface of the rotating shaft 621 at equal intervals. Dispersing mesh plates 623 are fixedly installed on 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 an annular shape at equal intervals on the outer side of the bottom of the annular tube 58. The tubes 611 are also fixed around the bottom of the annular tube 58 at equal intervals. The tube rack 612 inside the side tube 611 is T-shaped, and aeration nozzles 613 are installed at equal intervals. When the driving mechanism 5 drives the annular tube 58 to rotate, the nitrogen filling component 61 rotates accordingly, and nitrogen is evenly filled into the water in the tank body 4 through the aeration nozzles 613, so that the nitrogen and water are fully in contact. At the same time, the scraper 59 at the bottom of the annular tube 58 rotates with the annular tube 58, and its outer side is in contact with the inner wall of the conical tank body 4, and the lower end is inclined inward, which can effectively scrape the inner wall, prevent impurities from adhering, and guide the impurities to gather at the bottom of the tank body 4. The stirring component 62 is located at the cross tube 53. In the middle of the bottom, the rotating shaft 621 is fixed to the bottom of the cross. The upper and lower side rods 622 on the outer surface of the rotating shaft 621 are equipped with dispersion mesh plates 623. When the equipment is running, the rotating shaft 621 rotates with the cross tube 53, driving the dispersion mesh plates 623 to stir the water body. On the one hand, when other treatment agents need to be added, the treatment agents and ballast water can be mixed more evenly; on the other hand, the nitrogen bubbles sprayed from the aeration nozzle 613 can be further dispersed to enhance the reaction and replacement effect of nitrogen and water. In addition, the bottom of the rotating shaft 621 is connected to the filtering mechanism 7 to provide power support for the operation of the filtering mechanism 7 to ensure the efficient operation of the entire treatment process.

[0043] refer to Figure 1-Figure 5 and Figure 8The filter mechanism 7 includes a filter box 71, which is fixedly installed at the bottom output end of the tank body 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 through a hand-tightened bolt. An anti-blocking component 74 is provided on the top of the filter screen 72. The top of the anti-blocking 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. A drain pipe 76 is provided at the output end of the drain valve 75. The anti-blocking component 74 includes The filter box 71 is fixed to the bottom of the tank 4 and is provided with a slidable filter screen 72. The treated ballast water is filtered, and the sealing cover 73 installed on the outside of the filter screen 72 is connected to the filter box 71 by hand-tightened bolts to ensure good sealing during the filtering process. An anti-blocking component 74 is provided above the filter screen 72, and the component is connected to the bottom of the rotating shaft 621. When the rotating shaft 621 rotates, it drives the card shell 741 fixed at the bottom thereof to rotate, and a card block 744 is inserted into the card shell 741. The card block 744 is fixed on 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 the outer side thereof is evenly spaced with cleaning The cleaning brush plate 743, the bottom of the cleaning brush plate 743 is fitted with the top of the filter screen 72. As the connecting block 742 rotates, the cleaning brush plate 743 continuously brushes the surface of the filter screen 72. In 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, thereby ensuring the filtering effect. After the processing is completed, loosen the hand-tightening bolts of the sealing cover 73, and the filter screen 72 can be taken out of the filter box 71 for cleaning and maintenance. After maintenance, it can be reinstalled to ensure the continuous and stable operation of the filter mechanism 7.

[0044] An efficient method for treating ship ballast water by nitrogen filling and deoxygenation comprises the following steps:

[0045] Step 1: Connect the nitrogen pipeline through the bent pipe 57, connect the ballast water pipe through the external pipe 11, add ballast water using the external pipe 11, and add the ballast water into the tank body 4;

[0046] Step 2: nitrogen is filled into the tank body 4 through the bent pipe 57, and the nitrogen is discharged into the tank body 4 by using the pipe rack 612 which is arranged at equal intervals and has aeration nozzles 613 on the inner side;

[0047] Step 3: Start the driving motor 563, the driving motor 563 drives the driving gear 564 to rotate, the driving gear 564 drives the driven gear 562 meshing therewith 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 rack 612 to rotate, and during the treatment process, the floating gas is discharged through the exhaust pipe 12;

[0048] Step 4: The driving motor 563 drives the annular tube 58 to rotate, and the annular tube 58 drives the bottom scraper 59 to rotate, and the outer side of the scraper 59 is attached to the inner wall of the tank body 4 to scrape and clean;

[0049] Step 5: During the driving process, the rotating shaft 621 drives the dispersion screen 623 to rotate, stir the water, and then add disinfectant into the tank body 4 to evenly mix the disinfectant with the ballast water;

[0050] Step 6: 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 the drain pipe 76 at the bottom of the filter box 71. The driving motor 563 drives the gear transmission, so that the rotating shaft 621 drives the card shell 741, the block 744, and the connecting block 742, and 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, and then insert and screw the screw to fix it after cleaning. When installing, adjust the entrance of the card shell 741 so that the block 744 is inserted into the card shell 741 to complete the installation.

[0051] Principle and advantages of use: During the use of the device, the driving motor 563 is started, and the driving motor 563 drives the driving gear 564 to rotate. The driving gear 564 and the driven gear 562 are meshingly connected, so the rotation of the driving gear 564 will drive the driven gear 562 to rotate. After the driven gear 562 rotates, it will synchronously drive the connecting tube 52 to rotate. The rotation of the connecting tube 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 rack 612 to rotate. , connect the bent pipe 57 on the outside of the rotary joint 54 to the nitrogen pipeline, and fill the nitrogen into the tank body 4 through the bent pipe 57. Each pipe rack 612 is arranged at equal intervals, and an aeration nozzle 613 is provided on the inner side of the pipe rack 612, so that the nitrogen can be evenly discharged into the tank body 4 through the aeration nozzle 613 on each pipe rack 612 on the inner side of the side pipe 611, forming bubbles and quickly filling various positions inside the tank body 4, so that the nitrogen can more evenly remove oxygen from the ballast water. During the treatment process, the floating gas is discharged through the exhaust pipe 12, and the external pipe 11 can be used to add ballast water, which is convenient for the operation and use of the device;

[0052] The driving mechanism 5 and the nitrogen charging mechanism 6 of the device cooperate with each other. When the driving motor 563 drives the annular tube 58 to rotate, the annular tube 58 will drive the scrapers 59 at the bottom thereof to rotate. The outer side of the scraper 59 is in contact with the inner wall of the tank body 4. When the scraper 59 rotates, it will scrape the inner wall of the tank body 4 to prevent dust and impurities from adhering to the inner wall of the tank body 4. In this driving process, the rotating shaft 621 will drive the dispersion mesh plate 623 to rotate. The rotation of the dispersion mesh plate 623 will stir the water body. When disinfectant needs to be added, the rotation of the dispersion mesh plate 623 can make the disinfectant and the ballast water evenly mixed, thereby efficiently disinfecting the ballast water. Moreover, the rotation of the dispersion mesh plate 623 will also stir the bubbles sprayed by the aeration nozzle 613 to break up the bubbles. This agitation can promote the reaction and replacement of nitrogen and water, thereby improving the effect of water treatment.

[0053] During the use of the device, when 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 the drain pipe 76 at the bottom of the filter box 71. During the ballast water discharge process, the driving motor 563 drives the active gear 564 and the driven gear 562 to engage in transmission, and then synchronously 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 card shell 741 at its bottom to rotate. The rotation of the card shell 741 will drive the card 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 filtering process, the filter screen 72 will clean the sediment on the outer surface of the filter screen 72. Filtering, at the same time, the stirring and brushing of the cleaning brush plate 743 can prevent the sediment from clogging the filter screen 72, so that the device has a better anti-blocking function when in use. When the ballast water treatment is completed, loosen the hand-tightening screw to remove the filter screen 72 inside the filter box 71 to clean the filter screen 72. After the filter screen 72 is cleaned, insert the filter screen 72 into the filter box 71, and then twist the hand-tightening screw to make it threadedly connected with the filter box 71. During the installation process, adjust the entrance of the card shell 741 to the front end. After the filter screen 72 is installed, the card block 744 will be inserted into the card shell 741, which is convenient for quickly disassembling and assembling the filter screen 72 according to needs, convenient for cleaning and maintenance of the device, and improves the convenience of using the device.

Claims

1. An efficient ship ballast water nitrogen filling and deoxygenation treatment equipment, comprising a frame (1), characterized in that: A top ring (2) is fixedly mounted on the top of the frame (1), an inner frame (3) is fixedly mounted on the bottom of the top ring (2), a tank body (4) is fixedly mounted on the inner side of the inner frame (3), a driving mechanism (5) is fixedly mounted on the top of the tank body (4), a nitrogen charging mechanism (6) is fixedly mounted on the output end of the driving mechanism (5), the nitrogen charging mechanism (6) is rotatably connected to the inside of the tank body (4), a filtering mechanism (7) is fixedly mounted on the bottom of the tank body (4), the top of the filtering mechanism (7) is connected to the bottom of the nitrogen charging mechanism (6), and an external pipe (11) and an exhaust pipe (12) are fixedly mounted on the upper end of the back side of the tank body (4); The driving mechanism (5) comprises a top cover (51), the top cover (51) being mounted on the top of the tank body (4) by means of bolts, a connecting pipe (52) being rotatably connected to the middle of the top cover (51), a cross pipe (53) being fixedly mounted on the bottom of the connecting pipe (52), an annular pipe (58) being fixedly mounted on the outer side of the cross pipe (53), the nitrogen charging mechanism (6) being mounted on the bottom of the annular pipe (58), the nitrogen charging mechanism (6) being connected to the output end of the cross pipe (53), a driving assembly (56) being fixedly mounted on one side of the top of the top cover (51), a mounting frame (55) being fixedly mounted in the middle of the top of the top cover (51), a rotating joint (54) being mounted in the middle of the mounting frame (55), the bottom of the rotating joint (54) being connected to the top of the connecting pipe (52) and being rotatably connected to each other, and a bending pipe (57) being fixedly mounted on the top of the rotating joint (54).

2. According to claim 1, a highly efficient ship ballast water nitrogen filling and deoxygenation treatment equipment is characterized by: The driving assembly (56) comprises a fixing frame (561) and a driven gear (562); the fixing frame (561) is fixedly mounted on one side of the top of the top cover (51); a driving motor (563) is fixedly mounted on the top of the fixing frame (561); a driving gear (564) is fixedly mounted on the output end of the driving motor (563); the driven gear (562) is fixedly mounted on the outer surface of one end of the connecting pipe (52) penetrating the top cover (51); the driving gear (564) and the driven gear (562) are meshingly connected.

3. The highly efficient ship ballast water nitrogen filling and deoxygenation treatment equipment according to claim 1 is characterized by: The bending tube (57) is L-shaped, the outer end of the bending tube (57) is fixedly connected to a connecting flange (8), both ends of the bottom of the frame (1) are fixedly mounted with mounting plates (9), the outer end of the mounting plate (9) is provided with a mounting hole (10), and the mounting hole (10) is configured as a countersunk hole.

4. The highly efficient ship ballast water nitrogen filling and deoxygenation treatment equipment according to claim 1 is characterized by: The nitrogen charging mechanism (6) comprises a nitrogen charging component (61) and a stirring component (62). The nitrogen charging components (61) are arranged in a ring shape at equal intervals and fixedly installed on the outer side of the bottom of the annular tube (58). 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 filtering mechanism (7).

5. The highly efficient ship ballast water nitrogen filling and deoxygenation treatment equipment according to claim 4 is characterized by: The nitrogen charging assembly (61) comprises side pipes (611), the side pipes (611) are arranged in a ring shape at equal intervals and fixedly installed on the bottom of the ring pipe (58), a pipe rack (612) is fixedly installed at equal intervals on the inner side of the ring pipe (58), the top view of the pipe rack (612) is T-shaped, and aeration nozzles (613) are fixedly connected to the inner side of the pipe rack (612) at equal intervals.

6. The highly efficient ship ballast water nitrogen filling and deoxygenation treatment equipment according to claim 5 is characterized by: Scrapers (59) are fixedly mounted at the bottom of the annular tube (58) at equal intervals and arranged in a ring shape. The outer side of the scrapers (59) is in close contact with the inner wall of the tank body (4). The bottom of the tank body (4) is arranged in a conical shape. The lower ends of the scrapers (59) and the side tubes (611) are arranged to be inclined inward.

7. The highly efficient ship ballast water nitrogen filling and deoxygenation treatment equipment according to claim 6 is characterized by: The stirring assembly (62) comprises a rotating shaft (621), wherein the rotating shaft (621) is fixedly mounted at the bottom of the cross, and side rods (622) are fixedly mounted at even intervals on the outer surface of the rotating shaft (621), and dispersion screens (623) are fixedly mounted on the top and bottom of the outer surface of the side rods (622), and the bottom of the rotating shaft (621) is connected to the top of the filtering assembly.

8. The highly efficient ship ballast water nitrogen filling and deoxygenation treatment equipment according to claim 7 is characterized by: The filtering mechanism (7) comprises a filtering box (71), the filtering box (71) being fixedly mounted on the bottom output end of the tank body (4), a filtering screen (72) being slidably connected inside the filtering box (71), a sealing cover (73) being fixedly mounted on the outside of the filtering screen (72), the sealing cover (73) being connected to the filtering box (71) via hand-tightened bolts, an anti-blocking assembly (74) being arranged on the top of the filtering screen (72), the top of the anti-blocking assembly (74) being connected to the bottom of the rotating shaft (621), a drain valve (75) being fixedly mounted on the bottom output end of the filtering box (71), and a drain pipe (76) being arranged on the output end of the drain valve (75).

9. The highly efficient ship ballast water nitrogen filling and deoxygenation treatment equipment according to claim 8, characterized in that: The anti-blocking component (74) comprises a card shell (741) and a connecting block (742); the connecting block (742) is rotatably connected to the middle of the top 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 plate (743) is fitted and connected to the top of the filter screen (72); a card block (744) is fixedly installed on the top of the cleaning brush plate (743); the card shell (741) is fixedly installed on the bottom of the rotating shaft (621); and the top of the card block (744) is inserted into the interior of the card shell (741).

10. An efficient nitrogen filling and deoxygenation treatment method for ship ballast water, using an efficient nitrogen filling and deoxygenation treatment device for ship ballast water according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Connect the nitrogen pipeline through the bent pipe (57), connect the ballast water pipe through the external pipe (11), add ballast water using the external pipe (11), and add the ballast water into the tank body (4); Step 2: nitrogen is filled into the tank body (4) through the bent pipe (57), and the nitrogen is discharged into the tank body (4) by using a pipe rack (612) arranged at equal intervals and provided with aeration nozzles (613) on the inner side; Step 3: Start the driving motor (563), the driving motor (563) drives the driving gear (564) to rotate, the driving gear (564) drives the driven gear (562) meshing therewith 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 rack (612) to rotate, and during the treatment process, the floating gas is discharged through the exhaust pipe (12); Step 4: The driving motor (563) drives the annular tube (58) to rotate, and the annular tube (58) drives the bottom scraper (59) to rotate, and the outer side of the scraper (59) is attached to the inner wall of the tank body (4) to scrape and clean; Step 5: During the driving process, the rotating shaft (621) drives the dispersion screen (623) to rotate, stirring the water body, and then adding disinfectant into the tank body (4) to evenly mix the disinfectant and the ballast water; Step 6: After the ballast water treatment is completed, the drain valve (75) is opened to allow the ballast water to be discharged through the drain valve (75) at the bottom of the filter box (71) and the drain pipe (76). The drive motor (563) drives the gear transmission, so that the rotating shaft (621) drives the card shell (741), the card block (744), and the connecting block (742), and 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-tightened screw to remove the filter screen (72) for cleaning, and then insert and screw the screw to fix it after cleaning. When installing, adjust the entrance of the card shell (741) so that the card block (744) is inserted into the card shell (741) to complete the installation.

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