Chemical tanker centralized optimized cleaning system

Abstract

The application discloses a kind of chemical ship centralized optimization washing system, comprising: support;Centralized conveying part, centralized conveying part includes first relay part, first relay docking part and docking male head, first relay part is set on the first support seat of support, first relay docking part is set on first relay part, docking male head is connected on first relay part;Centralized receiving part, centralized receiving part includes second relay part, second relay docking part and docking female head, second relay part is set on the first support seat, second relay docking part is set on second relay part, docking female head is connected on second relay part;Docking power part, docking power part is simultaneously connected with first relay docking part and second relay docking part, to drive first relay docking part and second relay docking part, with docking male head and docking female head through connection.The application has reasonable structure design, high degree of automation, high safety and high reliability.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and more specifically, to a centralized optimized tank cleaning system for chemical tankers. Background Technology

[0002] For chemical tankers, due to the special nature of general chemical cargo (toxic, volatile, corrosive), the cargo holds need to be cleaned after unloading, requiring a complex cleaning operation process. How to perform this operation efficiently and easily directly affects the crew's work efficiency. During cleaning, multiple system interfaces (including the freshwater supply interface of the tank cleaning water system, the seawater supply interface of the tank cleaning water system, the acid washing interface of the tank cleaning water system, the steam interface, the compressed air interface, the N2 purging interface, the cargo hold super-cleaning interface, the cargo pump cleaning interface, and the cargo pump conveying system (loading / unloading) control interface) need to be connected one by one according to the operating procedure. Currently, existing vessels disperse the multiple system interfaces for cargo hold cleaning throughout the ship, requiring workers to move back and forth on the vessel to connect the inlet and outlet pipes of each interface. This significantly reduces the efficiency of ship cleaning and significantly increases the labor intensity of the workers.

[0003] Therefore, designing a centralized and optimized tank cleaning system for chemical tankers is of significant practical value. Summary of the Invention

[0004] To overcome the above-mentioned shortcomings, the present invention provides a centralized and optimized tank cleaning system for chemical tankers, specifically employing the following technical solution: A centralized and optimized tank cleaning system for chemical tankers includes: Support components, which are installed on the ship to provide support; A centralized conveying component is disposed on the support component. The centralized conveying component includes a first relay component, a first relay docking component, and a docking male connector. The first relay component is disposed on a first support base of the support component. The first relay docking component is disposed on the first relay component. The docking male connector is connected through to the first relay component. A centralized receiving unit is disposed on the support member. The centralized receiving unit includes a second relay member, a second relay docking member, and a docking female head. The second relay member is disposed on the first support base, the second relay docking member is disposed on the second relay member, and the docking female head is connected through to the second relay member. A docking power component is disposed on the support component, and the docking power component is simultaneously connected to the first relay docking component and the second relay docking component, so as to drive the first relay docking component and the second relay docking component to connect the male docking head and the female docking head through.

[0005] Preferably, the first relay component includes a first conveying seat and a first conveying pipe. The first conveying seat is disposed on the first support seat, and one end of the first conveying pipe is axially and slidably embedded in the pipe of the first conveying seat. A first sealing plate is disposed in the other port of the first conveying seat. One end of the first conveying pipe axially and slidably passes through the inner ring of the first sealing plate and extends into the pipe of the first conveying seat. A second sealing plate is fixedly fitted on one end of the first conveying pipe, and the second sealing plate axially and slidably slides within the pipe of the first conveying seat.

[0006] Preferably, the first relay docking component includes a first sliding tube, a first relay tube, a first spring, and a first push plate. The first sliding tube is axially slidably fitted onto the other end of the first conveying tube. One end of the first relay tube is fixedly fitted onto the first sliding tube. The first push plate is fixedly fitted onto the other end of the first conveying tube. The first spring is fitted onto the first conveying tube, and both ends of the first spring are respectively connected to one end face of the first relay tube and the first push plate. The docking male base is fixedly fitted through the other end face of the first conveying tube.

[0007] Preferably, nine sets of centralized conveying components are provided, and the nine sets of centralized conveying components are distributed parallel to each other on the first support base. The first conveying base of each of the nine sets of centralized conveying components is connected to the inlet pipe of the fresh water supply interface of the tank washing water system, the inlet pipe of the seawater supply interface of the tank washing water system, the inlet pipe of the acid washing interface of the tank washing water system, the inlet pipe of the steam interface, the inlet pipe of the compressed air interface, the inlet pipe of the N2 purging interface, the inlet pipe of the cargo hold super sweep interface, the inlet pipe of the cargo pump sweep interface, and the inlet pipe of the cargo pump conveying system control interface in turn.

[0008] Preferably, the second relay component includes a second conveying seat and a second conveying pipe. The second conveying seat is disposed on the first support seat, and the axis of the second conveying seat coincides with that of the first conveying seat. One end of the second conveying pipe is axially sealed and slidably embedded inside the pipe of the second conveying seat. The second relay docking component includes a second sliding tube, a second relay pipe, a second spring, and a second push plate. The second sliding tube is axially slidably fitted onto the other end of the second conveying pipe. The second relay pipe is fixedly fitted onto the second sliding tube, and the inner diameter of the second relay pipe is not less than the outer diameter of the first relay pipe. The second push plate is fixedly fitted onto the other end of the second conveying pipe, and the second spring is sleeved on the second... On the conveying pipe, the two ends of the second spring are respectively connected to the second relay pipe and the second push plate; the docking female head base is fitted through and mounted on the other end face of the second conveying pipe; the axes of the nine sets of centralized receiving components are correspondingly aligned with the axes of the nine sets of centralized conveying components, and one end face of the second conveying seat of the nine sets of centralized receiving components is respectively connected through and connected to the inlet pipe of the fresh water supply interface of the tank washing water system, the inlet pipe of the seawater supply interface of the tank washing water system, the inlet pipe of the acid washing interface of the tank washing water system, the inlet pipe of the steam interface, the inlet pipe of the compressed air interface, the inlet pipe of the N2 purging interface, the inlet pipe of the cargo hold super sweep interface, the inlet pipe of the cargo pump sweep interface, and the inlet pipe of the cargo pump conveying system control interface.

[0009] Preferably, the docking power component includes a first power component and a lubricating component, both of which are disposed on the support component; the first power component includes a transmission component and a second power component, the transmission component is disposed on the first support base and is connected to the centralized conveying component and the centralized receiving component in a transmission manner, and the second power component is on the first support base and transmits power to the transmission component.

[0010] Preferably, the transmission component includes a first slide groove, a first slider, a first internally threaded tube, a second slide groove, a second slider, a second internally threaded tube, and a screw. The first slide groove is disposed on the first support base, the first slider is slidably fitted into the first slide groove, the sidewall of the first internally threaded tube is fixedly disposed on the first slider, and the sidewall of the first internally threaded tube is connected to the sidewall of the first relay tube through a first relay block. The second slide groove is disposed on the first support base, the second slider is slidably fitted into the second slide groove, the sidewall of the second internally threaded tube is disposed on the second slider, and the sidewall of the second internally threaded tube is connected to the sidewall of the second relay tube through a second relay block. The two ends of the screw successively engage with the first internally threaded tube and the second internally threaded tube. The nine sets of the transmission components are sequentially connected to the nine sets of the centralized receiving components and the nine sets of the centralized conveying components.

[0011] Preferably, the second power component includes a third power component and a selective transmission component. The third power component is disposed on the first support base, and the selective transmission component is disposed on the third power component. The third power component includes a motor and a transmission shaft. The motor is disposed on the first support base, and one end of the transmission shaft is connected to the rotating shaft of the motor.

[0012] Preferably, the selection transmission component includes a sliding tube, a magnetic coil, a first end gear, a worm, a second end gear, and a worm wheel. The sliding tube is axially sliding and circumferentially locked onto the transmission shaft. The magnetic coil is embedded in a spiral groove on the inner wall of the sliding tube. The first end gear is mounted on one end of the sliding tube. The worm is circumferentially rotatable and mounted on the outside of the transmission shaft. The second end gear is mounted on one end of the worm and can mesh with the first end gear. The worm wheel is mounted on the screw and meshes with the other end of the worm. Nine sets of selection transmission components are connected one-to-one with nine sets of transmission components.

[0013] Preferably, the lubrication component includes a lubricating oil tank, a first main pipe, and a second main pipe. The lubricating oil tank is disposed on the first support base. One end of the first main pipe is disposed through the lubricating oil tank, and the other end of the first main pipe is connected to the first conveying base of the nine sets of the centralized conveying components through nine first branch pipes. One end of the second main pipe is disposed through the lubricating oil tank, and the other end of the second main pipe is connected to the second conveying base of the nine sets of the centralized receiving components through nine second branch pipes.

[0014] The present invention has at least the following beneficial effects: 1) The centralized optimized tank cleaning system for chemical tankers of this invention has a reasonable structural design, a high degree of automation, high safety, and high reliability. 2) The chemical tanker centralized optimized tank cleaning system of the present invention is equipped with nine sets of centralized conveying components, nine sets of centralized receiving components, and docking power components. The docking power components can automatically control one of the nine sets of centralized conveying components and one of the nine sets of centralized receiving components to automatically seal and dock (transporting the corresponding liquid or gas after docking) as needed. There is no need for staff to manually connect the corresponding inlet and outlet pipes, which significantly improves the degree of automation, safety and reliability.

[0015] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0016] Figure 1 This is a front view of the centralized optimized tank cleaning system for chemical tankers according to the present invention; Figure 2 This invention provides a centralized optimized tank cleaning system for chemical tankers. Figure 1 A magnified view of part A in the image; Figure 3 This is the right-side front view of the centralized optimized tank cleaning system for chemical tankers according to the present invention; Figure 4 This is a three-dimensional structural diagram of the left side of the centralized optimized tank cleaning system for chemical tankers of the present invention; Figure 5 This is a three-dimensional structural diagram of the right side of the centralized optimized tank cleaning system for chemical tankers of the present invention; Figure 6 This invention provides a centralized optimized tank cleaning system for chemical tankers. Figure 5 A magnified view of part C; Figure 7 This invention provides a centralized optimized tank cleaning system for chemical tankers. Figure 3 Front view of the cross section in the middle BB direction; Figure 8 This invention provides a centralized optimized tank cleaning system for chemical tankers. Figure 7 A magnified view of part D; Figure 9 This invention provides a centralized optimized tank cleaning system for chemical tankers. Figure 3 Schematic diagram of the three-dimensional structure in the BB direction; Figure 10 This invention provides a centralized optimized tank cleaning system for chemical tankers. Figure 9 A magnified view of part E in the image.

[0017] Wherein: 1-First support seat, 2-First conveying seat, 3-First conveying pipe, 4-Second support seat, 5-First sealing plate, 6-Second sealing plate, 7-First sliding pipe, 8-First relay pipe, 9-First spring, 10-First push plate, 11-Inlet pipe of fresh water supply interface for tank cleaning system, 12-Inlet pipe of seawater supply interface for tank cleaning system, 13-Inlet pipe of acid washing interface for tank cleaning system, 14-Inlet pipe of steam interface, 15-Inlet pipe of compressed air interface, 16-Inlet pipe of N2 purging interface, 17-Inlet pipe of cargo hold super cleaning interface, 18-Inlet pipe of cargo pump cleaning interface, 19-Inlet pipe of cargo pump conveying system (loading and unloading) control interface, 20-Male connector, 21-Female connector, 22-Second conveying seat, 23-Second conveying pipe, 24-Third support seat, 26-Second relay pipe, 29-Washing... 30 - Outlet pipe of freshwater supply interface of tank water system; 31 - Outlet pipe of seawater supply interface of tank washing water system; 32 - Outlet pipe of acid washing interface of tank washing water system; 33 - Outlet pipe of steam interface; 34 - Outlet pipe of compressed air interface; 35 - Outlet pipe of N2 purging interface; 36 - Outlet pipe of cargo hold super sweep interface; 37 - Outlet pipe of cargo pump sweep interface; 38 - Outlet pipe of cargo pump conveying system (loading and unloading) control interface; 49 - First chute; 40 - First internal threaded pipe; 41 - Second internal threaded pipe; 42 - Screw; 43 - First relay block; 44 - First mounting base; 45 - Motor; 46 - Drive shaft; 57 - Second mounting base; 58 - Sliding pipe; 59 - First end gear; 50 - Worm; 50 - Second end gear; 51 - Worm wheel; 52 - Lubricating oil tank; 53 - First main pipe; 54 - Second main pipe; 55 - First branch pipe. Detailed Implementation

[0018] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and by way of embodiments. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0019] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0020] according to Figures 1-10As shown, a centralized optimized tank cleaning system for chemical tankers includes a support component, a centralized conveying component, a centralized receiving component, and a docking power component. The centralized conveying component, the centralized receiving component, and the docking power component are all mounted on the support component. The support component includes a first support base 1, which is a rectangular thick plate. One end of the first support base 1 is fixedly mounted on the vessel to provide support for the centralized conveying component, the centralized receiving component, and the docking power component.

[0021] The centralized conveying component includes a first relay component, a first relay connector, and a male connector 20. The first relay component is mounted on the first support base 1, and both the first relay connector and the male connector 20 are mounted on the first relay component. The first relay component includes a first conveying seat 2 and a first conveying pipe 3. The first conveying seat 2 is fixedly mounted on a second support base 4 on the other end face of the first support base 1, and one end of the first conveying pipe 3 is axially and slidably embedded inside the pipe of the first conveying seat 2. Alternatively, the male connector 20 is a quick-connect male connector.

[0022] The first conveying seat 2 is generally cylindrical, with one end closed and a first sealing plate 5 on the other end. The first sealing plate 5 is annular, and its outer ring is fixedly and sealingly embedded in the other end of the first conveying seat 2. The outer diameter of the first conveying pipe 3 is not greater than the inner diameter of the first sealing plate 5. One end of the first conveying pipe 3 slides axially through the inner ring of the first sealing plate 5 and extends into the pipe of the first conveying seat 2. Furthermore, a first sliding sealing ring is embedded in the inner wall of the first sealing plate 5 to maintain the axial sealing sliding of the first conveying pipe 3 within the inner ring of the first sealing plate 5.

[0023] A second sealing plate 6 is fixedly fitted at one end of the first conveying pipe 3. The second sealing plate 6 is annular in shape, and its outer diameter is not greater than the inner diameter of the first conveying seat 2. A second sliding sealing ring is fitted around the outer ring of the second sealing plate 6, which slides and seals against the inner wall of the first conveying seat 2. When the first conveying pipe 3 slides axially within the first conveying seat 2, the first sealing plate 5 and the second sealing plate 6 form a lubricated and sealed chamber with a variable volume.

[0024] The first relay docking component includes a first sliding tube 7, a first relay tube 8, a first spring 9, and a first push plate 10. The first sliding tube 7 is axially slidably fitted onto the other end of the first conveying tube 3. The first relay tube 8 is fixedly fitted onto the first sliding tube 7 through a first through hole at one end. The first push plate 10 is annular and is fixedly fitted onto the other end of the first conveying tube 3. The first spring 9 is fitted onto the first conveying tube 3, with one end of the spring 9 connected to one end face of the first relay tube 8 and the other end connected to the first push plate 10. The docking male connector 20 is fixedly fitted onto the other end face of the first conveying tube 3. When the first relay tube 8 is pushed by the docking power component, it will push the first spring 9 and the first push plate 10 to move the first conveying tube 3 downward from inside the first conveying seat 2 tube, thereby causing the docking male connector 20 to move downward and form a through-sealed connection with the centralized receiving component.

[0025] Nine sets of centralized conveying components are provided, and the nine sets of centralized conveying components are distributed parallel to each other on the second support base 4. One end face of the first conveying base 2 of the nine sets of centralized conveying components is respectively connected to the inlet pipe 11 of the fresh water supply interface of the tank washing water system, the inlet pipe 12 of the seawater supply interface of the tank washing water system, the inlet pipe 13 of the acid washing interface of the tank washing water system, the inlet pipe 14 of the steam interface, the inlet pipe 15 of the compressed air interface, the inlet pipe 16 of the N2 purging interface, the inlet pipe 17 of the cargo hold super sweep interface, the inlet pipe 18 of the cargo pump sweep interface, and the inlet pipe 19 of the cargo pump conveying system (loading and unloading) control interface.

[0026] The centralized receiving unit includes a second relay component, a second relay docking component, and a docking female connector 21. The second relay component is mounted on the first support base 1, and both the second relay docking component and the docking female connector 21 are mounted on the second relay component. The second relay component includes a second conveying seat 22 and a second conveying pipe 23. The second conveying seat 22 is fixedly mounted on a third support base 24 on the other end face of the first support base 1, and the axis of the second conveying seat 22 coincides with that of the first conveying seat 23. One end of the second conveying pipe 23 is axially and slidably embedded in the pipe of the second conveying seat 22. Alternatively, the docking female connector 21 is a quick-connect female connector.

[0027] Furthermore, the second conveying seat 22 has the same structure as the first conveying seat 2, and the second conveying seat 22 is symmetrical to the first conveying seat 2. The second conveying pipe 23 has the same structure as the first conveying pipe 3, and the axial sealing sliding connection method of the second conveying pipe 23 within the second conveying seat 22 is the same as the axial sealing sliding connection method of the first conveying pipe 3 within the first conveying seat 2.

[0028] The second relay docking component includes a second sliding tube, a second relay tube 26, a second spring, and a second push plate. The second sliding tube is axially slidably fitted onto the other end of the second conveying tube 23. The second relay tube 26 is fixedly fitted onto the second sliding tube through a second through hole at one end, and the inner diameter of the second relay tube 26 is not less than the outer diameter of the first relay tube 8 (when the male connector 20 is inserted into the female connector 21 in a sealing manner, the other end of the second relay tube 26 is fitted onto the other end of the first relay tube 8. When the male connector 20 and the female connector 21 leak at the docking point, the leaking high-pressure liquid or gas will be blocked by the second relay tube 26 and the first relay tube 8 to prevent high-pressure jetting of leaked liquid or gas from injuring people). The second push plate is in the shape of a ring plate and is fixedly fitted onto the other end of the second conveying tube 23. The second spring is fitted onto the second conveying tube 23, and one end of the second spring is connected to one end face of the second relay tube 26, while the other end of the second spring is connected to the second push plate. The female connector 21 is fixedly mounted on the other end face of the second conveying pipe 23. When the second relay pipe 26 is pushed by the docking power component, it will push the second spring and the second push plate to move the second conveying pipe 23 upward from inside the first conveying seat 2, thereby causing the female connector 21 to move upward and fit into a sealing sleeve on the male connector 20.

[0029] Nine sets of centralized receiving units are provided, and these nine sets are distributed parallel to each other on the third support base 24. One end face of the second conveying base 22 of each of the nine sets of centralized receiving units is respectively connected to the outlet pipe 29 of the freshwater supply interface of the tank cleaning water system, the outlet pipe 30 of the seawater supply interface of the tank cleaning water system, the outlet pipe 31 of the acid washing interface of the tank cleaning water system, the outlet pipe 32 of the steam interface, the outlet pipe 33 of the compressed air interface, the outlet pipe 34 of the N2 purging interface, the outlet pipe 35 of the cargo hold super-sweeping interface, the outlet pipe 36 of the cargo pump sweeping interface, and the outlet pipe 37 of the cargo pump conveying system (loading and unloading) control interface. Simultaneously, the axes of the nine sets of centralized receiving units coincide with the axes of the nine sets of centralized conveying units.

[0030] The docking power component includes a first power component and a lubricating component, both of which are mounted on the support component. The first power component includes a transmission component and a second power component. The transmission component is mounted on the first support base 1 and is connected to both the centralized conveying component and the centralized receiving component. The second power component is mounted on the first support base 1 and transmits power to the transmission component.

[0031] The transmission component includes a first slide groove 38, a first slider, a first internally threaded tube 40, a second slide groove, a second slider, a second internally threaded tube 43, and a screw 44. The first slide groove 38 is dovetail-shaped and is fixedly mounted on the first support base 1, located directly below the centralized conveying component. The axis of the first slide groove 38 is parallel to the axis of the centralized conveying component. The first slider is dovetail-shaped and is slidably fitted into the first slide groove 38. The sidewall of the first internally threaded tube 40 is fixedly mounted on the first slider, and the sidewall of the first internally threaded tube 40 is connected to the first support base 1 via a first relay block 45. The first relay tube 8 is fixedly connected to the side wall; the second slide groove is dovetail-shaped and fixedly mounted on the first support base 1, and the second slide groove is located directly below the centralized receiving component. Simultaneously, the axis of the second slide groove is parallel to the axis of the centralized receiving component. The second slider is dovetail-shaped and is slidably embedded in the second slide groove. The side wall of the second internally threaded tube 43 is fixedly mounted on the second slider, and the side wall of the second internally threaded tube 43 is fixedly connected to the side wall of the second relay tube 26 via the second relay block. The two ends of the screw 44 correspond to and pass through the first internally threaded tube 40 and the second internally threaded tube 43. Furthermore, the two ends of the screw 44 are rotatably mounted on the first slide groove 38 and the second slide groove via the first mounting base 47.

[0032] When the screw 44 is driven to rotate in the forward direction by the second power component, it will drive the first internal threaded tube 40 and the second internal threaded tube 43 to move towards each other simultaneously. Then, the first internal threaded tube 40 drives the first relay tube 8 to move downward through the first relay block 45, and the second internal threaded tube 43 drives the second relay tube 26 to move upward through the second relay block. The first spring 9 and the second spring drive the male connector 20 to cooperate and insert into the female connector 21, thereby making the first delivery tube 3 and the second delivery tube 23 seal and connect.

[0033] Nine sets of transmission components are provided, and each of the nine sets of transmission components is positioned directly below the nine sets of centralized receiving components and the nine sets of centralized conveying components. Furthermore, each of the nine sets of transmission components is connected to the nine sets of centralized receiving components and the nine sets of centralized conveying components in a corresponding transmission manner.

[0034] The second power component includes a third power component and a selective transmission component. The third power component is mounted on the first support base 1, and the selective transmission component is mounted on the third power component. The third power component includes a motor 48 and a transmission shaft 49. The motor 48 is fixedly mounted on the first support base 1, one end of the transmission shaft 49 is connected to the rotating shaft of the motor 48, and the other end of the transmission shaft 49 is rotatably mounted on the first support base 1 via a second mounting base 50.

[0035] The selected transmission component includes a sliding tube 51, a magnetic coil, a first end gear 52, a worm 53, a second end gear 54, and a worm wheel 55. The sliding tube 51 is axially sliding and circumferentially locked onto the transmission shaft 49. The magnetic coil is fixedly embedded in a spiral groove on the inner wall of the sliding tube 51. The first end gear 52 is fixedly mounted on one end of the sliding tube 51. The worm 53 is circumferentially rotatably mounted on the outside of the transmission shaft 49. The second end gear 54 is fixedly mounted on one end of the worm 53 and can mesh with the first end gear 52. The worm wheel 55 is fixedly mounted on the screw 44 and meshes with the other end of the worm 53. Furthermore, a gearbox is fitted around the meshing point between the worm wheel 55 and the worm 53. Furthermore, a sliding block on the inner wall of the sliding tube 51 is slidably embedded in a sliding groove on the side wall of the transmission shaft 49. When a positive direct current is applied to the magnetic coil to generate a magnetic field, it will push the sliding tube 51 to slide to the right. The sliding tube 51, which slides to the right, will drive the first end gear 52 to mesh with the second end gear 54 and then transmit power.

[0036] Nine sets of selective transmission components are provided, and each of the nine sets of selective transmission components is connected to the other of the nine sets of transmission components in a corresponding manner. When one of the nine sets of centralized receiving components and the nine sets of centralized conveying components needs to be connected, the corresponding selective transmission component is activated to drive the corresponding transmission component to rotate in the forward direction.

[0037] The lubrication system includes a lubricating oil tank 56, a first main pipe 57, and a second main pipe 58. The lubricating oil tank 56 is fixedly mounted on the first support base 1. One end of the first main pipe 57 passes through the lubricating oil tank 56, and the other end of the first main pipe 57 is connected to nine sets of centralized conveying components through nine first branch pipes 59. One end of the second main pipe 58 passes through the lubricating oil tank 56, and the other end of the second main pipe 58 is connected to nine sets of centralized receiving components through nine second branch pipes. Alternatively, both the first main pipe 57 and the second main pipe 58 are equipped with solenoid valves.

[0038] Furthermore, at the point where the first branch pipe 59 penetrates the first conveying seat 2, near the other end of the first conveying seat 2, when the first conveying pipe 3 slides upward within the first conveying seat 2, a negative pressure will be generated in the lubrication sealing chamber formed by the second sealing plate 6, the first sealing plate 5, the first conveying seat 2, and the first conveying pipe 3. This negative pressure will draw the lubricating oil in the lubricating oil tank 56 into the lubrication sealing chamber for lubrication and corrosion protection of the first conveying pipe 3 and the first conveying seat 2. When the first conveying pipe 3 slides downward within the first conveying seat 2, a positive pressure will be generated in the lubrication sealing chamber, forcing the lubricating oil in the lubrication sealing chamber into the lubricating oil tank 56. The connection relationship (function) between the centralized receiving component and the lubricating component is the same as that between the centralized conveying component and the lubricating component.

[0039] First, the cargo is unloaded using the cargo pumps. In the final stage of unloading, the pumps begin to draw in air, causing a pressure drop and leaving a certain amount of liquid cargo in the pump wells and pipes. To remove as much remaining cargo as possible and clean the unloading pipes, a tank sweeping procedure is performed to reduce the residual volume in the cargo tank's suction wells to below 75L. Compressed air or N2 is blown out through the main unloading pipe, and under the action of the operating deep-well pumps, the remaining cargo is discharged from the tanks through the sweeping pipes. The pumps remain running until the cargo pipes are emptied.

[0040] Because liquid chemicals may solidify at ambient temperatures, heated loading and unloading are required. For cargo pumps that cannot be operated from deck, portable submersible pumps can be used to lower the cargo into the tanks for unloading. Removable short pipes of the same diameter are interchangeable. For substances that are most toxic and difficult to unload, prewash water is discharged into the receiving unit for treatment; for substances of less toxicity, special tank cleaning requirements can be met by employing approved tank cleaning and pipeline purging procedures.

[0041] The tank cleaning method of the centralized optimized tank cleaning system for chemical tankers includes: 1. Pre-cleaning and residual liquid recovery (1) Automatically connect and connect a set of centralized conveying components connected to the inlet pipe 15 of the compressed air interface with a set of centralized receiving components connected to the outlet pipe 33 of the compressed air interface (the staff controls the opening and closing of the tank washing operation in the control room, and the controller will run automatically according to the preset tank washing program). (2) Purging: Use compressed air to purge the pipeline to remove residual liquid materials (after purging, the centralized conveying component and the centralized receiving component will automatically disconnect and reset). (3) Sweep the tank: Use an explosion-proof pump to collect the residual liquid in the tank to ensure that there is no residue; (4) Automatically connect and connect a set of centralized conveying components connected to the inlet pipe 16 of the N2 purge interface with a set of centralized receiving components connected to the outlet pipe 34 of the N2 purge interface; (5) Inertization: Inject inert gas (N2) into the liquid cargo tank to make the oxygen content less than 8 percent and maintain positive pressure (after the purging is completed, the centralized conveying component and the centralized receiving component will automatically disconnect and reset).

[0042] 2. Tank cleaning process (1) Water washing tank Cold water tank washing: Rinse with seawater or fresh water for 1-2 hours to remove surface residue, paying special attention to hard-to-clean areas such as cargo pipes and pump bodies. (Depending on the type of seawater or fresh water used, a set of centralized conveying components connected to the inlet pipe 12 of the seawater supply interface of the tank washing water system or the inlet pipe 11 of the freshwater supply interface of the tank washing water system will be automatically connected to a set of centralized receiving components connected to the outlet pipe 30 of the seawater supply interface of the tank washing water system or the outlet pipe 29 of the freshwater supply interface of the tank washing water system.) Hot water cleaning (less than 60 degrees Celsius) enhances cleaning power, but the concentration of combustible gas must be monitored (stop when it exceeds 35% LFL).

[0043] (2) Cleaning the tank with chemical cleaning agents: Choose a cleaning agent compatible with the cargo hold coating, avoid those containing Class X contaminants (unless they are easily degradable and the concentration is ≤10%), control the water temperature to ≤60℃, and prevent chemical reactions.

[0044] 3. Special treatment (1) Spray washing and desalination: If seawater is used to wash the tank, it is necessary to rinse with fresh water to remove chloride ions and avoid corrosion of the tank walls (especially for chlorine-sensitive cargo). (2) Dechlorination in steam chamber: Use steam condensate to remove chloride ions from concealed parts, and ensure that the concentration of combustible gas in the chamber is ≤10%LFL.

[0045] The post-tank cleaning treatment method of the centralized optimized tank cleaning system for chemical tankers includes: 1. Degassing and ventilation Use fixed or mobile ventilation equipment (explosion-proof type) to remove toxic / flammable gases, and ensure that the emission outlet is far away from residential areas.

[0046] Entry is permitted only after the gas concentration is tested and meets the standards of GB16993-2021 (oxygen content ≥19.5%, combustible gas <10% LFL).

[0047] 2. Manual cabin cleaning and inspection Personnel wearing protective gear should descend into the cabin to remove residual stains; tools must be intrinsically safe.

[0048] Inspection standards: No residue is visually inspected; if necessary, bulkhead tests (such as potassium permanganate oxidation tests) should be conducted.

[0049] 3. Tank washing water discharge Inland waterway vessels must have zero emissions, and maritime vessels must meet emission standards (e.g., tank cleaning water containing Class X substances must be pre-washed to a concentration of ≤0.1% and discharged into receiving equipment).

[0050] Based on the above tank cleaning procedure, we have centralized all interfaces related to the tank cleaning system on one control panel so that they can be automatically connected to each other.

[0051] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A centralized and optimized tank cleaning system for chemical tankers, characterized in that, include: Support components, which are installed on the ship to provide support; A centralized conveying component is disposed on the support component. The centralized conveying component includes a first relay component, a first relay docking component, and a docking male connector. The first relay component is disposed on a first support base of the support component. The first relay docking component is disposed on the first relay component. The docking male connector is connected through to the first relay component. A centralized receiving unit is disposed on the support member. The centralized receiving unit includes a second relay member, a second relay docking member, and a docking female head. The second relay member is disposed on the first support base, the second relay docking member is disposed on the second relay member, and the docking female head is connected through to the second relay member. A docking power component is disposed on the support component, and the docking power component is simultaneously connected to the first relay docking component and the second relay docking component, so as to drive the first relay docking component and the second relay docking component to connect the male docking head and the female docking head through.

2. The centralized optimized tank cleaning system for chemical tankers according to claim 1, characterized in that, The first relay component includes a first conveying seat and a first conveying pipe. The first conveying seat is disposed on the first support seat. One end of the first conveying pipe is axially and slidably embedded in the pipe of the first conveying seat. A first sealing plate is disposed in the other end of the first conveying seat. One end of the first conveying pipe axially and slidably passes through the inner ring of the first sealing plate and extends into the pipe of the first conveying seat. A second sealing plate is fixedly fitted on one end of the first conveying pipe. The second sealing plate axially and slidably slides within the pipe of the first conveying seat.

3. The centralized optimized tank cleaning system for chemical tankers according to claim 2, characterized in that, The first relay docking component includes a first sliding tube, a first relay tube, a first spring, and a first push plate. The first sliding tube is axially slidably mounted on the other end of the first conveying tube. One end of the first relay tube is fixedly mounted on the first sliding tube. The first push plate is fixedly mounted on the other end of the first conveying tube. The first spring is mounted on the first conveying tube, and both ends of the first spring are respectively connected to one end face of the first relay tube and the first push plate. The docking male base is fixedly mounted through the other end face of the first conveying tube.

4. The centralized optimized tank cleaning system for chemical tankers according to claim 2 or 3, characterized in that, Nine sets of centralized conveying components are provided, and the nine sets of centralized conveying components are distributed parallel to each other on the first support base. The first conveying base of each of the nine sets of centralized conveying components is connected to the inlet pipe of the fresh water supply interface of the tank washing water system, the inlet pipe of the seawater supply interface of the tank washing water system, the inlet pipe of the acid washing interface of the tank washing water system, the inlet pipe of the steam interface, the inlet pipe of the compressed air interface, the inlet pipe of the N2 purging interface, the inlet pipe of the cargo hold super sweep interface, the inlet pipe of the cargo pump sweep interface, and the inlet pipe of the cargo pump conveying system control interface in turn.

5. The centralized optimized tank cleaning system for chemical tankers according to claim 2, characterized in that, The second relay component includes a second conveying seat and a second conveying pipe. The second conveying seat is mounted on the first support seat, and the axis of the second conveying seat coincides with that of the first conveying seat. One end of the second conveying pipe is axially and slidably embedded inside the pipe of the second conveying seat. The second relay docking component includes a second sliding tube, a second relay pipe, a second spring, and a second push plate. The second sliding tube is axially slidably fitted onto the other end of the second conveying pipe. The second relay pipe is fixedly fitted onto the second sliding tube, and the inner diameter of the second relay pipe is not less than the outer diameter of the first relay pipe. The second push plate is fixedly fitted onto the other end of the second conveying pipe. The second spring is sleeved on the second conveying... The second spring is connected to the second relay pipe and the second push plate at both ends; the docking female head base is fitted through and onto the other end face of the second conveying pipe; the axes of the nine sets of centralized receiving components and the axes of the nine sets of centralized conveying components are aligned one by one; one end face of the second conveying seat of the nine sets of centralized receiving components is connected through and through to the inlet pipe of the fresh water supply interface of the tank washing water system, the inlet pipe of the seawater supply interface of the tank washing water system, the inlet pipe of the acid washing interface of the tank washing water system, the inlet pipe of the steam interface, the inlet pipe of the compressed air interface, the inlet pipe of the N2 purging interface, the inlet pipe of the cargo hold super sweep interface, the inlet pipe of the cargo pump sweep interface, and the inlet pipe of the cargo pump conveying system control interface.

6. The centralized optimized tank cleaning system for chemical tankers according to claim 1 or 2, characterized in that, The docking power component includes a first power component and a lubricating component, both of which are mounted on the support component. The first power component includes a transmission component and a second power component. The transmission component is mounted on the first support base and is connected to the centralized conveying component and the centralized receiving component. The second power component is mounted on the first support base and transmits power to the transmission component.

7. The centralized optimized tank cleaning system for chemical tankers according to claim 6, characterized in that, The transmission components include a first slide groove, a first slider, a first internally threaded tube, a second slide groove, a second slider, a second internally threaded tube, and a screw. The first slide groove is disposed on the first support base, and the first slider is slidably fitted into the first slide groove. The sidewall of the first internally threaded tube is fixedly disposed on the first slider, and the sidewall of the first internally threaded tube is connected to the sidewall of the first relay tube through a first relay block. The second slide groove is disposed on the first support base, and the second slider is slidably fitted into the second slide groove. The sidewall of the second internally threaded tube is disposed on the second slider, and the sidewall of the second internally threaded tube is connected to the sidewall of the second relay tube through a second relay block. The two ends of the screw successively engage with the first internally threaded tube and the second internally threaded tube. The nine sets of the transmission components are sequentially connected to the nine sets of the centralized receiving components and the nine sets of the centralized conveying components.

8. The centralized optimized tank cleaning system for chemical tankers according to claim 6, characterized in that, The second power component includes a third power component and a selective transmission component. The third power component is mounted on the first support base, and the selective transmission component is mounted on the third power component. The third power component includes a motor and a transmission shaft. The motor is mounted on the first support base, and one end of the transmission shaft is connected to the rotating shaft of the motor.

9. The centralized optimized tank cleaning system for chemical tankers according to claim 8, characterized in that, The selection transmission component includes a sliding tube, a magnetic coil, a first end gear, a worm, a second end gear, and a worm wheel. The sliding tube is axially sliding and circumferentially locked onto the transmission shaft. The magnetic coil is embedded in a spiral groove on the inner wall of the sliding tube. The first end gear is mounted on one end of the sliding tube. The worm rotates circumferentially around the transmission shaft. The second end gear is mounted on one end of the worm and can mesh with the first end gear. The worm wheel is mounted on the screw and meshes with the other end of the worm. Nine sets of selection transmission components are connected one-to-one with nine sets of transmission components.

10. The centralized optimized tank cleaning system for chemical tankers according to claim 5, characterized in that, The lubrication system includes a lubricating oil tank, a first main pipe, and a second main pipe. The lubricating oil tank is mounted on the first support base. One end of the first main pipe passes through the lubricating oil tank, and the other end of the first main pipe is connected to the first conveying base of the nine sets of centralized conveying components through nine first branch pipes. One end of the second main pipe passes through the lubricating oil tank, and the other end of the second main pipe is connected to the second conveying base of the nine sets of centralized receiving components through nine second branch pipes.

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