Ship pipeline inspection filter

Abstract

The invention relates to the technical field of ship pipeline cleaning and filtering equipment, in particular to a ship pipeline inspection filter suitable for working conditions of oil intermingling of a ship main engine, flushing of a lubricating oil system and oil stain cleaning before shipping, the ship pipeline inspection filter comprises two outer cylinders, the outer cylinders are respectively communicated with an inlet pipe and an outlet pipe, and the two outer cylinders are respectively communicated through a connecting pipe; a filter cylinder assembly, an extrusion assembly, an anti-blocking assembly, a transmission assembly and a supporting assembly are arranged in each outer cylinder. A filtering medium enters the outer cylinder and then is filtered and discharged by the filter cylinder assembly, the anti-blocking assembly sweeps the inner side of the filter cylinder under the action of the driving piece to remove blocking, and the transmission assembly drives the filter cylinder to rotate, so that the filtering stability is improved; the double outer cylinders can work independently or simultaneously, and on-line switching, dismounting, washing and maintenance can be achieved under the condition that a pump is not stopped.

Description

Technical Field

[0001] This invention relates to the technical field of marine pipeline cleaning and filtration equipment, and more particularly to a marine pipeline inspection filter suitable for main engine oil leakage, lubricating oil system flushing, and pre-delivery oil sludge cleaning. More specifically, it relates to a mechanical marine pipeline inspection filter with a double outer cylinder parallel filtration structure, a filter cylinder rotation anti-clogging structure, and the ability to switch cleaning without stopping the pump. Background Technology

[0002] In existing ship pipeline cleaning technologies, especially in situations such as main engine oil cross-contamination, lubricating oil system flushing, and pre-delivery oil sludge cleaning, a single inspection filter is typically used as the main filtration unit on-site. This type of structure generally involves placing the filter media inside a single filter tank. After the media containing impurities enters, basic filtration is completed, and then the filtered media is discharged. Although this type of device can achieve basic filtration, its structure is usually based on "single-tank operation and shutdown maintenance." That is, when the filter media becomes clogged, contaminated, or the filtration resistance increases significantly, it is necessary to restore operation by stopping the pump, isolating, opening the cover, disassembling, cleaning, or replacing the filter element or filter bag, thus interrupting the filtration process.

[0003] For applications involving a large amount of welding slag, rust, sludge, and metal particles inside the ship's piping system, requiring long cleaning cycles and high continuity of operations, the shortcomings of the single-barrel structure become more prominent. On the one hand, impurities continuously accumulate in the filter unit, easily adhering to the surface of the filter cartridge or filter bag and quickly forming blockages, leading to decreased filtration efficiency and increased pressure loss. On the other hand, each maintenance requires a series of mechanical operations such as depressurization, opening the cover, disassembly and cleaning, resetting, and restarting, which frequently interrupts the effective cleaning time, thereby extending the overall ship cleaning cycle.

[0004] Furthermore, existing devices typically lack a structural foundation capable of enabling parallel operation of dual filtration units, online isolation maintenance of individual filtration units, and synchronous mechanical anti-clogging within the filter cartridges under continuous pump operation. Therefore, under conditions of continuous operation of the filter media and high impurity load, existing solutions struggle to simultaneously meet the three requirements of continuous filtration, online maintenance, and anti-clogging / anti-blocking. Thus, there is an urgent need for a marine pipeline inspection filter capable of alternating filtration with dual outer cylinders, coordinated anti-clogging within the filter cartridges, and mechanical online maintenance under continuous pump operation, to address the problems of poor continuity, high risk of clogging, and low maintenance efficiency inherent in existing single-cylinder structures.

[0005] Therefore, we propose a marine pipeline inspection filter to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to solve the problems existing in the prior art where a single inspection filter is usually used for filtration during the cleaning of ship pipelines. Welding slag, rust, sludge and particulate impurities in the filter medium tend to accumulate continuously on the surface of the filter cartridge, leading to clogging of the filter unit, reduced filtration efficiency, and the need to stop the pump and machine when disassembling, cleaning, repairing or replacing the filter cartridge, resulting in interruption of the cleaning process, low maintenance efficiency and long cleaning cycle of the whole ship. The invention proposes a ship pipeline inspection filter that can achieve parallel filtration of two outer cylinders, online switching maintenance without stopping the pump, anti-clogging of the filter cartridge rotation, and convenient disassembly and cleaning.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A marine pipeline inspection filter includes two outer cylinders, each with a cap at the top. Inlet pipes A and outlet pipes B are connected to the outer surfaces of both cylinders near their top and bottom, respectively. A connecting pipe A connects the inlet pipes A to the outer cylinders, and a connecting pipe B connects the outlet pipes B to the outer cylinders. It is important to note that connecting pipe A is the inlet pipe, and connecting pipe B is the outlet pipe. Liquid enters through connecting pipe A, flows into the two inlet pipes A, and then flows into the outer cylinders. It then flows out through the two outlet pipes B, flows into the connecting pipe B, and finally flows out. Both inlet pipes A and outlet pipes B have control valves, allowing for switching between the two outer cylinders for filtration as needed. Without stopping use, the working cylinder can be switched to, and the faulty cylinder can be inspected and cleaned. Each outer cylinder contains a filter cartridge assembly and a compression assembly, with the compression assembly located at the top of the filter cartridge assembly. Both the filter cartridge assembly and the compression assembly include anti-clogging components. The filter cartridge assembly includes an overlapping ring disposed on the inner wall of the outer cylinder. Specifically, a support block is provided on the inner wall of the outer cylinder, protruding from it. The overlapping ring is then placed inside the outer cylinder and rests on top of the support block, thus positioning the overlapping ring inside the outer cylinder. The filter cartridge assembly also includes a filter cartridge with a top ring at its top. The top ring and the filter cartridge are connected by screws. A positioning cylinder is rotatably connected to the top ring, overlapping the overlapping ring. The top of the overlapping ring has a limit groove. The positioning cylinder is T-shaped, including a horizontal portion and a vertical portion. The bottom of the horizontal part of the positioning cylinder has a limiting protrusion that matches the limiting groove. When placing the filter cylinder, the filter cylinder is inserted through the overlapping ring so that the vertical part of the positioning cylinder is inserted into the overlapping ring. Then the positioning cylinder is placed on top of the overlapping ring, and the limiting protrusion is further positioned in the limiting groove. In this way, the positioning cylinder is not easy to rotate on top of the overlapping ring, but the filter cylinder and the positioning cylinder can rotate. The bottom of the filter cylinder is connected to a base so that the bottom of the filter cylinder is sealed and the top is not sealed. The filter cylinder enters the outer cylinder through the connecting pipe A, then enters the filter cylinder for filtration, and then exits through the connecting pipe B. The extrusion assembly includes a receiving box A, and multiple circumferentially distributed connecting rods A are connected to the bottom of the receiving box A near its edge. The bottom of the multiple connecting rods A is connected to the same pressure ring, which presses against the top of the horizontal part of the positioning cylinder. This makes the entire positioning cylinder unable to move between the pressure ring and the overlapping ring, but does not affect the filter cartridge being suspended in the outer cylinder and able to rotate freely. The bottom of the cylinder cover has a sealing pressure plate, which matches the top of the receiving box A. When the cylinder cover is connected to the top of the outer cylinder, the sealing pressure plate presses against the top of the receiving box A, so that the inside of the receiving box A is a complete cavity for accommodating the driving component, and the receiving box A remains stationary in the outer cylinder.

[0008] As a further aspect of this invention, the outer surface of the receiving box A has two connecting holes, and two auxiliary pipes are connected to the outer surfaces of the two outer cylinders. One of the auxiliary pipes is used for inlet discharge, and the other is used for outlet discharge. The two auxiliary pipes are respectively connected to the two connecting holes. When the driving medium (gas / liquid) enters the cavity in the receiving box A through one auxiliary pipe and one connecting hole, the medium can impact the wheel body, causing different wheel bodies to change positions. At the same time, the medium entering the receiving box A is discharged from the other connecting hole and auxiliary pipe. In this way, the entire driving impeller rotates and drives the rotating rod to rotate. At the same time, the rotating rod drives the anti-clogging sweeping component to rotate.

[0009] As a further part of the present invention, the anti-clogging component includes a rotating rod that penetrates the receiving box A, the rotating rod being rotatably connected to the receiving box A, the bottom part of the rotating rod penetrating the receiving box A and extending into the interior of the filter cartridge, the top part of the rotating rod being located in the receiving box A, a driving component connected to the rotating rod and located in the receiving box A, and an anti-clogging sweeping component connected to the rotating rod and located in the filter cartridge.

[0010] As a further aspect of the present invention, the driving component is a driving impeller matched in the receiving box A, and the driving component includes an intermediate sleeve and multiple wheel bodies connected to the outside of the intermediate sleeve. The inside of the wheel body is hollow, which not only reduces the overall weight, but also provides buoyancy in the medium, so that it can save some effort and be easier to rotate. The multiple wheel bodies are arranged in a circle outside the intermediate sleeve. The intermediate sleeve is fitted on the rotating rod and locked with bolts. In this way, the rotation of the driving impeller can drive the rotation of the rotating rod, and the rotation of the rotating rod can drive the anti-clogging sweeping component to rotate.

[0011] As a further aspect of the present invention, the anti-clogging sweeping component includes at least three connecting frames connected to the rotating rod. Each connecting frame includes a connecting ring C sleeved on the rotating rod and locked with bolts. At least three horizontal bars are fixedly connected to the outside of the connecting ring C. Each horizontal bar has a vertical bar connected to its end. A vertical row of bristles is attached to the surface of the vertical bar. A reinforcing rod is connected between the vertical bar and the horizontal bar. When the rotating rod rotates, it can drive the anti-clogging sweeping component to rotate. When the anti-clogging sweeping component rotates in the filter cartridge, the horizontal bars, vertical bars, and reinforcing rods can agitate the liquid entering the filter cartridge, preventing the filtered impurities from accumulating or adhering to the inner wall of the filter cartridge and causing blockage. In addition, the bristles on the vertical bar can sweep the inner wall of the filter cartridge, thereby cleaning and removing the impurities adhering to the inner wall of the filter cartridge and preventing them from affecting the filtration effect.

[0012] As a further aspect of the invention, a transmission assembly is provided between the rotating rod and the top ring. The transmission assembly includes a transmission ring and a transmission component. The transmission ring includes a connecting ring A sleeved on the rotating rod and locked with bolts. Multiple connecting rods B arranged in a circular pattern are fixed to the outside of the connecting ring A. An external transmission gear ring is connected to the outside of the connecting ring A through the multiple connecting rods B. The external transmission gear ring is opposite to the internal gear portion located on the inner ring of the top ring. The transmission component includes a mounting block connected to the pressure ring, with one end of the mounting block extending above the position between the transmission ring and the top ring. A shaft is rotatably mounted near one end of the mounting block. The filter cartridge has a transmission gear and a positioning wheel. The transmission gear is located below the positioning wheel and meshes with the transmission outer gear ring and the inner gear part. The positioning wheel is in contact with the inner wall of the top ring below the inner gear part. When the rotating rod rotates, it drives the transmission assembly to rotate. The transmission outer gear ring drives the transmission gear meshing with it to rotate. The transmission gear meshes with the inner gear part and drives the top ring to rotate, thereby causing the filter cartridge connected to the top ring to rotate in the outer cylinder. During this process, the anti-clogging sweeping component rotates in the filter cartridge and the filter cartridge rotates in the outer cylinder. The anti-clogging sweeping component rotates in the opposite direction to the rotation of the filter cartridge, which improves the filtration effect and reduces the risk of debris adhesion and clogging.

[0013] As a further part of the present invention, the base includes an outer plate and an inner plate connected together by bolts. The inner plate is located at the bottom of the inside of the filter cartridge, and the outer plate is located at the bottom of the filter cartridge. The bottom of the filter cartridge is a through-hole, and the inner diameter of the through-hole of the filter cartridge is smaller than the diameter of the inner plate. During assembly, the inner plate is placed at the bottom of the inside of the filter cartridge, and then the outer plate is placed at the bottom of the filter cartridge. The inner plate and the outer plate are locked together by bolts, and the bottom of the filter cartridge is clamped out. In this way, the filter cartridge is only unsealed at the top, allowing the filtered material to be discharged. The filter cartridge can be a stainless steel filter cartridge or other structure that can achieve the filtration effect. The bottom of the outer plate is connected to a support component A, and the support component A is provided with a support component B.

[0014] As a further aspect of the present invention, the support assembly A includes a connecting ring B, and a plurality of inclined support rods are connected to the outer ring of the connecting ring B. The end of the inclined support rod away from the connecting ring B is bolted to the bottom of the outer plate. The inclined support rod has a wing plate. When the filter cartridge rotates, it drives the support assembly A to rotate. In this way, the inclined support rod can disturb the filtered material, and the wing plate can also assist the inclined support rod in turbulence and flow enhancement. The support assembly A is used to support the filter cartridge, and the support assembly B is connected to the connecting ring B and is used to support the support assembly A.

[0015] As a further aspect of the present invention, the support component B includes a movable rod that passes through the connecting ring B. An anti-detachment ring is screwed onto the top of the movable rod, and a receiving box B is connected to the bottom of the movable rod. A locking ring cover is screwed onto the bottom of the receiving box B. There is a movable cavity in the receiving box B and the locking ring cover, and a movable bead is in the movable cavity. The diameter of the movable bead is slightly smaller than the diameter of the movable cavity, so that the movable bead can move freely in the movable cavity. A small part of the outer surface of the movable bead is exposed outside the locking ring cover. A spring is fitted on the movable rod and is located between the connecting ring B and the receiving box B. The expansion and compression force of the spring can press the receiving box B downward, so that the receiving box B is away from the connecting ring B. When in use, the spring is compressed and concentrated. Under the action of the spring, the movable bead is pressed and contacted with the bottom of the inner cavity of the outer cylinder. Correspondingly, it also pushes the connecting ring B upward to provide a certain support, and does not hinder the rotation of the support component A. In addition, when the cylinder cover is opened, under the action of the spring, the filter cylinder can be pushed upward to lift it up, making it convenient to take out the filter cylinder and its structure from the top of the outer cylinder.

[0016] Compared with existing technologies, the advantages of this ship pipeline inspection filter are: 1. This invention, by setting up a structure with two outer cylinders, two sets of inlet and outlet pipes and interconnected connecting pipes, enables the filter medium to form a parallel filtration path between the two outer cylinders, thereby changing the existing single-cylinder operation mode of operation and shutdown maintenance; when one filter unit needs to be disassembled for cleaning or maintenance, the other filter unit can still maintain the continuous conduction of the filtration path, thus directly solving the problems of easy interruption of the cleaning process and insufficient continuous operation capability in the existing technology.

[0017] 2. The present invention sets up a filter cartridge assembly inside the outer cylinder, and achieves stable installation and relative rotation of the filter cartridge through positioning cylinder, overlapping ring, pressure ring and related holding structure, so that the filter cartridge is not in a static and contaminated state during the filtration process, but can rotate under the drive of the transmission structure; thereby reducing the continuous accumulation of impurities on the local filter surface, improving the uniformity of the filter surface utilization, and reducing the probability of local blockage.

[0018] 3. By setting up an anti-clogging component and utilizing the linkage between the rotating rod, the driving component, and the anti-clogging sweeping component, the present invention enables the anti-clogging sweeping component to rotate inside the filter cartridge, thereby disturbing the filter medium and continuously sweeping the inner wall of the filter cartridge, thus cleaning or loosening the impurities attached to the inner side of the filter cartridge in a timely manner. Compared with the existing static filtration structure, the present invention can significantly enhance the anti-clogging ability of the filter unit and delay the increase of filtration resistance.

[0019] 4. By setting up a transmission component, the present invention enables the rotation of the drive component to not only drive the anti-clogging sweeping component to rotate, but also to drive the filter cartridge to rotate synchronously, and the two form a relative motion relationship. This structure of "filter cartridge rotation + internal sweeping component reverse relative cleaning" makes the filter surface and the sweeping component form a more sufficient mechanical cleaning effect, which is conducive to improving the impurity removal effect during the filtration process and maintaining a relatively stable filtration efficiency.

[0020] 5. The present invention provides support components A and B at the bottom of the filter cartridge, which can prevent deformation due to gravity and prevent rotation, swaying and deviation on the vertical axis. Support component B supports the filter cartridge assembly and can lift the filter cartridge assembly upward when the cover is open, making it easy to lift out as a whole. Therefore, the present invention not only improves the filtration and anti-clogging effect during operation, but also takes into account the convenience of disassembly and assembly during shutdown maintenance, reduces the resistance of filter cartridge disassembly and the difficulty of manual operation, and improves the efficiency of mechanical maintenance.

[0021] 6. By introducing a power-assisted passage pipe and a drive component into the receiving box, the present invention enables the drive medium to drive the drive component to rotate and drive the anti-blocking component to work. The overall structure still belongs to the pure mechanical transmission logic and does not rely on complex electronic control actuators. Therefore, the present invention is easier to implement in the working conditions of high oil pollution, high humidity and heat and limited maintenance conditions on the ship, and has good structural reliability and engineering applicability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a ship pipeline inspection filter according to the present invention; Figure 2 This is a split view of the outer cylinder and cylinder cover in a marine pipeline inspection filter according to the present invention; Figure 3 for Figure 2 Detailed diagram of the internal structure of the inner and outer cylinders; Figure 4 for Figure 3 Exploded view of the extrusion assembly and filter cartridge assembly; Figure 5 for Figure 4 Layout diagram of the extrusion assembly and the anti-clogging assembly; Figure 6 for Figure 5 Schematic diagram of the transmission component; Figure 7 for Figure 5 Analytical diagram of the middle filter cartridge and the overlapping ring; Figure 8 for Figure 7 A structural diagram viewed from below; Figure 9 for Figure 8 Cross-sectional view of the middle filter cartridge; Figure 10 for Figure 5 Detailed structural diagram of the anti-blocking component and transmission coil; Figure 11 for Figure 5 Structural breakdown of support component A and support component B Figure 1 ; Figure 12 for Figure 5 Structural breakdown of support component A and support component B Figure 2 .

[0023] In the diagram: 1. Outer cylinder; 11. Cylinder cover; 111. Sealing pressure plate; 12. Inlet pipe A; 121. Connecting pipe A; 13. Outlet pipe B; 131. Connecting pipe B; 14. Assisted passage pipe; 2. Extrusion assembly; 21. Filter cartridge; 22. Top ring; 221. Internal toothed part; 23. Base; 231. Outer plate; 232. Inner plate; 24. Positioning cylinder; 25. Overlapping ring; 3. Extrusion assembly; 31. Receiving box A; 311. Connecting hole; 32. Connecting rod A; 33. Pressure ring; 4. Anti-clogging assembly; 41. Rotating rod; 42. Driving component; 43. Anti-clogging sweeper Components; 431. Connecting frame; 432. Upright pole; 4321. Brush bristles; 433. Reinforcing rod; 5. Transmission assembly; 51. Transmission ring; 511. Connecting ring A; 512. Connecting rod B; 513. Transmission external gear ring; 52. Transmission component; 521. Mounting block; 522. Shaft; 523. Transmission gear; 524. Positioning wheel; 6. Support assembly A; 61. Diagonal support rod; 62. Connecting ring B; 63. Wing plate; 7. Support assembly B; 71. Movable rod; 72. Spring; 73. Receiving box B; 74. Locking ring cover; 75. Movable ball. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0025] Reference Figures 1 to 12A marine pipeline inspection filter includes two outer cylinders 1, each with a cap 11 at the top. An inlet pipe A12 and an outlet pipe B13 are connected to the outer surfaces of the two outer cylinders near their top and bottom, respectively. A connecting pipe A121 connects the inlet pipes A12 to the two outer cylinders 1, and a connecting pipe B131 connects the outlet pipes B13 to the two outer cylinders 1. Control valves are installed on both the inlet pipes A12 and B13. The filterable medium can be introduced into the two outer cylinders 1 through the connecting pipe A121, and the filtered medium discharged from the two outer cylinders 1 can be collected and discharged through the connecting pipe B131, thus forming a parallel dual-outer-cylinder filtration structure. This allows the two outer cylinders 1 to be used individually or simultaneously, and the filtration path can be maintained by the other outer cylinder 1 when one outer cylinder 1 is shut down for cleaning. Compared with the existing single-cylinder shutdown maintenance method, this parallel dual-outer-cylinder and valve-controlled switching structure is more suitable for scenarios requiring continuous operation during oil spill cleanup before shipboard departure.

[0026] Each outer cylinder 1 is equipped with a filter cartridge assembly 2 and a compression assembly 3. The compression assembly 3 is located at the top of the filter cartridge assembly 2. An anti-clogging assembly 4 is provided in both the filter cartridge assembly 2 and the compression assembly 3. A transmission assembly 5 is provided on the outside of the filter cartridge assembly 2. A support assembly A6 is provided at the bottom of the filter cartridge assembly 2. A support assembly B7 is provided in the support assembly A6. Thus, a composite mechanical structure of "filtration-anti-clogging-transmission-support-easy disassembly" is formed inside each outer cylinder 1.

[0027] Reference Figure 3 , Figure 4 , Figures 7 to 9 The filter cartridge assembly 2 includes an overlapping ring 25, a filter cartridge 21, a top ring 22, a positioning cylinder 24, and a base 23 disposed on the inner wall of the outer cylinder 1. The overlapping ring 25 is fixedly disposed on the bearing position of the inner wall of the outer cylinder 1, preferably supported by a bearing block on the inner wall of the outer cylinder 1. The filter cartridge 21, as the main filtration component, is disposed inside the outer cylinder 1. The top ring 22 is disposed on the top of the filter cartridge 21, and the top ring 22 and the filter cartridge 21 can be locked together by screws. The positioning cylinder 24 is rotatably connected to the top ring 22 and overlaps the top of the overlapping ring 25. The top of the overlapping ring 25 is provided with a limiting groove. The positioning cylinder 24 has a T-shaped structure, including a horizontal part and a vertical part. The bottom of the horizontal part is provided with a limiting protrusion, which is matched and embedded in the limiting groove. Through this structure, the positioning cylinder 24 is not prone to circumferential displacement relative to the overlapping ring 25, while the filter cartridge 21 can rotate relative to the positioning cylinder 24. The bottom of the filter cartridge 21 is connected to the base 23, thereby forming a basic filtration structure of top liquid inlet and circumferential filtration.

[0028] The base 23 includes an outer plate 231 and an inner plate 232 connected together by bolts. The inner plate 232 is located at the bottom of the filter cartridge 21, and the outer plate 231 is located at the bottom of the filter cartridge 21. The bottom of the filter cartridge 21 is provided with an opening, and the inner diameter of the opening is smaller than the diameter of the inner plate 232. The bottom of the filter cartridge 21 is clamped and fixed by the inner plate 232 and the outer plate 231, which not only ensures the connection strength, but also makes the bottom of the filter cartridge 21 form a stable closed support structure.

[0029] Reference Figure 4 , Figure 5 The extrusion assembly 3 includes a receiving box A31, multiple connecting rods A32, and a pressure ring 33. The receiving box A31 is located on the top of the filter cartridge assembly 2. The multiple connecting rods A32 are connected to the bottom of the receiving box A31 near the edge and are distributed in a circumferential manner. The bottom of the multiple connecting rods A32 is connected to the same pressure ring 33. The pressure ring 33 is pressed against the top of the horizontal part of the positioning cylinder 24 so that the positioning cylinder 24 is restricted between the pressure ring 33 and the overlapping ring 25, thereby keeping the positioning cylinder 24 stable and not affecting the relative rotation of the filter cartridge 21 in the outer cylinder 1. The bottom of the cylinder cover 11 is provided with a sealing pressure plate 111. The sealing pressure plate 111 cooperates with the top of the receiving box A31. When the cylinder cover 11 is installed on the top of the outer cylinder 1, the sealing pressure plate 111 is pressed against the top of the receiving box A31, so that the inside of the receiving box A31 forms a sealed cavity for accommodating the driving component 42.

[0030] In a preferred embodiment, the outer casing A31 has two connecting holes 311, and the outer cylinder 1 is connected to two auxiliary tubes 14. The two auxiliary tubes 14 are respectively connected to the two connecting holes 311. One auxiliary tube 14 is used to drive the medium to enter, and the other auxiliary tube 14 is used to drive the medium to exit. When the driving medium enters the casing A31 through one auxiliary tube 14, it can impact the driving member 42 and drive it to rotate. The medium is then discharged through the other auxiliary tube 14. Thus, without introducing an additional complex electronic control mechanism, mechanical driving force is provided for the anti-blocking component 4.

[0031] Reference Figure 5 and Figure 10 The anti-clogging component 4 includes a rotating rod 41 that penetrates the receiving box A31, a driving component 42 disposed on the rotating rod 41, and an anti-clogging sweeping component 43 disposed on the rotating rod 41. The rotating rod 41 is rotatably connected to the receiving box A31, with its bottom end penetrating the receiving box A31 and extending into the filter cartridge 21, and its top end located inside the receiving box A31. The driving component 42 is preferably a driving impeller structure, disposed in the receiving box A31, and fixed on the rotating rod 41. The driving component 42 includes an intermediate sleeve and multiple wheel bodies, which are distributed circumferentially along the outer periphery of the intermediate sleeve. The intermediate sleeve is sleeved on the rotating rod 41 and locked with bolts. After the driving medium impacts the wheel bodies, the driving component 42 rotates and drives the rotating rod 41 to rotate synchronously.

[0032] The anti-clogging sweeping component 43 is disposed inside the filter cartridge 21. It includes a connecting frame 431, a vertical rod 432, bristles 4321, and a reinforcing rod 433. The connecting frame 431 includes a connecting ring C sleeved on the rotating rod 41. The connecting ring C is locked to the rotating rod 41 by bolts. At least three horizontal bars are fixedly connected to the outside of the connecting ring C. The ends of the horizontal bars are connected to the vertical rod 432. The surface of the vertical rod 432 is provided with a vertical row of bristles 4321. A reinforcing rod 433 is connected between the vertical rod 432 and the horizontal bars. When the rotating rod 41 rotates, it drives the anti-clogging sweeping component 43 to rotate inside the filter cartridge 21. The horizontal bars, vertical rod 432, and reinforcing rod 433 can disturb the fluid inside the filter cartridge 21. The bristles 4321 can sweep the inner wall of the filter cartridge 21, thereby preventing impurities from adhering and accumulating on the inner wall of the filter cartridge 21 and causing blockage.

[0033] Reference Figure 5 , Figure 6 and Figure 10 A transmission assembly 5 is provided between the rotating rod 41 and the top ring 22. The transmission assembly 5 includes a transmission ring 51 and a transmission component 52. The transmission ring 51 includes a connecting ring A511 sleeved on the rotating rod 41, multiple connecting rods B512, and a transmission external gear ring 513. The connecting ring A511 is locked to the rotating rod 41 by bolts, and its exterior is connected to the transmission external gear ring 513 through multiple connecting rods B512. The top ring 22 has an internal gear portion 221 at the inner ring position, and the transmission external gear ring 513 is arranged opposite to the internal gear portion 221. The transmission component 52 includes a mounting block 521 connected to the pressure ring 33. One end of the mounting block 521 extends above the position between the transmission ring 51 and the top ring 22. A shaft 522 is rotatably mounted on the mounting block 521. A transmission gear 523 and a positioning wheel 524 are mounted on the shaft 522. The transmission gear 523 is located below the positioning wheel 524 and meshes between the transmission outer gear ring 513 and the inner gear part 221. The positioning wheel 524 contacts the inner wall of the top ring 22 at a position below the inner gear part 221. Thus, when the rotating rod 41 drives the transmission ring 51 to rotate, the transmission outer gear ring 513 drives the transmission gear 523 to rotate. The transmission gear 523 then drives the top ring 22 and the filter cartridge 21 to rotate through the inner gear part 221, thereby causing the anti-clogging sweeping component 43 and the filter cartridge 21 to form relative motion, thereby enhancing the anti-clogging effect and improving the filtration stability.

[0034] Reference Figure 11 and Figure 12The bottom of the outer plate 231 is connected to a support assembly A6, which contains a support assembly B7. The support assembly A6 includes a connecting ring B62, multiple inclined support rods 61, and a wing plate 63. The connecting ring B62 is located at the center of the bottom, and its outer ring is connected to multiple inclined support rods 61. The end of the inclined support rod 61 away from the connecting ring B62 is bolted to the bottom of the outer plate 231. The inclined support rod 61 is provided with a wing plate 63. When the filter cartridge 21 rotates, the support assembly A6 can rotate accordingly. The inclined support rods 61 and the wing plate 63 can disturb the liquid flow at the bottom, playing an auxiliary turbulence role, while providing support for the filter cartridge assembly 2.

[0035] The support assembly B7 is connected to the connecting ring B62. It includes a movable rod 71 that passes through the connecting ring B62, a spring 72 sleeved on the movable rod 71, a receiving box B73 located at the bottom of the movable rod 71, a locking ring cover 74 screwed to the bottom of the receiving box B73, and a movable ball 75 located in the movable cavity. An anti-detachment ring is screwed to the top of the movable rod 71. The spring 72 is located between the connecting ring B62 and the receiving box B73. Under normal use, the spring 72 applies a downward pressing force to the receiving box B73, so that the movable ball 75 contacts the bottom of the outer cylinder 1 and forms an auxiliary support. After the cylinder cover 11 is opened, the spring 72 releases its pushing force, which can lift the filter cartridge 21 and its related structures upward, making it easy to lift the filter cartridge assembly 2 as a whole for cleaning, maintenance or replacement.

[0036] The working process of this invention is as follows: The medium to be filtered enters the two inlet pipes A12 through the connecting pipe A121, and then enters the two outer cylinders 1 respectively. After entering the outer cylinder 1, the medium enters the area around the filter cylinder 21 and is filtered through the filter cylinder 21. Then it is discharged through the outlet pipe B13 to the connecting pipe B131. In use, the two outer cylinders 1 can be operated simultaneously according to the valve opening and closing status, or one outer cylinder 1 can be operated while the other outer cylinder 1 is stopped for maintenance, thereby realizing online switching and continuous filtration without stopping the pump.

[0037] During the filtration process, the driving medium enters the receiving box A31 through the assisted passage pipe 14 and drives the driving component 42 to rotate. The rotating rod 41 rotates synchronously and drives the anti-clogging sweeping component 43 to rotate continuously inside the filter cartridge 21, sweeping the inner wall of the filter cartridge 21 and creating disturbance to the internal liquid flow. At the same time, the rotating rod 41 drives the filter cartridge 21 to rotate synchronously through the transmission component 5, and the anti-clogging sweeping component 43 and the filter cartridge 21 form relative motion, thereby reducing the risk of impurity adhesion and local clogging.

[0038] When one of the outer cylinders 1 contains a large amount of impurities and requires disassembly and cleaning for maintenance, the control valves on the corresponding inlet pipe A12 and outlet pipe B13 of that outer cylinder 1 can be closed, allowing the other outer cylinder 1 to continue to maintain the filtration passage. Then, the corresponding cylinder cover 11 is opened, and the filter cylinder assembly 2 is lifted upward and removed as a whole under the pushing action of the support component B7, so that the internal components such as the filter cylinder 21 and the anti-clogging sweeping component 43 can be cleaned and maintained. Thus, the present invention can realize mechanical switching of the two outer cylinders, online disassembly and cleaning, and continuous filtration without stopping the pump. It is suitable for working conditions with high continuity requirements, such as oil transfer in the ship's main engine, flushing of the lubricating oil system, and oil sludge cleaning before delivery of the ship.

[0039] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A marine pipeline inspection filter, comprising two outer cylinders (1), each outer cylinder (1) having a cylinder cover (11) at its top, and an inlet pipe A (12) and an outlet pipe B (13) connected to the outer sides of the two outer cylinders (1) near their top and bottom, respectively; a connecting pipe A (121) connecting the inlet pipes A (12) of the two outer cylinders (1), and a connecting pipe B (131) connecting the outlet pipes B (13) of the two outer cylinders (1); and control valves on both the inlet pipes A (12) and the outlet pipes B (13), characterized in that, The outer cylinder (1) is provided with a filter cartridge assembly (2) and a pressing assembly (3). The pressing assembly (3) is located at the top of the filter cartridge assembly (2). The filter cartridge assembly (2) and the pressing assembly (3) are provided with an anti-clogging assembly (4). The filter cartridge assembly (2) includes an overlapping ring (25) disposed on the inner wall of the outer cylinder (1). The filter cartridge assembly (2) also includes a filter cartridge (21), and a top ring (22) is provided on the top of the filter cartridge (21). A positioning cylinder (24) is rotatably connected to the top ring (22). The positioning cylinder (24) overlaps on the overlapping ring (25). The overlapping ring (25) has a limiting groove at the top. The positioning cylinder (24) is T-shaped and includes a horizontal part and a vertical part. The bottom of the horizontal part of the positioning cylinder (24) has a limiting protrusion, which matches the limiting groove. The bottom of the filter cartridge (21) is connected to a base (23). The extrusion assembly (3) includes a receiving box A (31), and a plurality of circumferentially distributed connecting rods A (32) are connected to the bottom of the receiving box A (31) near the edge, and the bottom of the plurality of connecting rods A (32) is connected to the same pressure ring (33). The bottom of the cylinder cover (11) has a sealing pressure plate (111), and the sealing pressure plate (111) matches the top of the receiving box A (31).

2. The dual-filter mechanical switching marine pipeline cleaning device according to claim 1, characterized in that, The container A (31) has two connecting holes (311) on its outside. Both outer cylinders (1) are connected to two auxiliary pipes (14). One of the auxiliary pipes (14) is used for inlet and the other is used for outlet. The two auxiliary pipes (14) are respectively connected to the two connecting holes (311).

3. The dual-filter mechanical switching marine pipeline cleaning device according to claim 1, characterized in that, The anti-clogging component (4) includes a rotating rod (41) that passes through the receiving box A (31). The rotating rod (41) is rotatably connected to the receiving box A (31). The bottom part of the rotating rod (41) passes through the receiving box A (31) and extends into the filter cartridge (21). The top part of the rotating rod (41) is located in the receiving box A (31). A driving component (42) is connected to the rotating rod (41) and is located in the receiving box A (31). An anti-clogging sweeping component (43) is connected to the rotating rod (41) and is located in the filter cartridge (21).

4. A dual-filter mechanical switching marine pipeline cleaning device according to claim 3, characterized in that, The driving component (42) is a driving impeller and is matched in the receiving box A (31). The driving component (42) includes an intermediate sleeve and multiple wheel bodies connected to the outside of the intermediate sleeve. The inside of the wheel body is hollow. The multiple wheel bodies are arranged in a circle outside the intermediate sleeve. The intermediate sleeve is fitted on the rotating rod (41) and locked with bolts.

5. A dual-filter mechanical switching marine pipeline cleaning device according to claim 3, characterized in that, The anti-clogging sweeping component (43) includes at least three connecting frames (431) connected to the rotating rod (41). The connecting frame (431) includes a connecting ring C sleeved on the rotating rod (41) and locked with bolts. At least three horizontal bars are fixedly connected to the outside of the connecting ring C. The ends of the horizontal bars are connected to vertical bars (432). A vertical row of bristles (4321) is connected to the surface of the vertical bars (432). A reinforcing bar (433) is connected between the vertical bars (432) and the horizontal bars.

6. A dual-filter mechanical switching marine pipeline cleaning device according to claim 3, characterized in that, A transmission assembly (5) is provided between the rotating rod (41) and the top ring (22). The transmission assembly (5) includes a transmission ring (51) and a transmission component (52). The transmission ring (51) includes a connecting ring A (511) sleeved on the rotating rod (41) and locked with bolts. Multiple connecting rods B (512) are fixed to the outside of the connecting ring A (511) in a circular arrangement. A transmission external gear ring (513) is connected to the outside of the connecting ring A (511) through the multiple connecting rods B (512). The transmission external gear ring (513) is opposite to the internal gear part (221) opened in the inner ring position of the top ring (22). The transmission component (52) 2) Includes a mounting block (521) connected to the pressure ring (33), and one end of the mounting block (521) extends above the position between the transmission ring (51) and the top ring (22), and a shaft (522) is rotatably mounted near one end of the mounting block (521). The shaft (522) has a transmission gear (523) and a positioning wheel (524). The transmission gear (523) is below the positioning wheel (524). The transmission gear (523) meshes between the transmission outer gear ring (513) and the inner gear part (221). The positioning wheel (524) contacts the inner wall of the top ring (22) at the position below the inner gear part (221).

7. A dual-filter mechanical switching marine pipeline cleaning device according to claim 1, characterized in that, The base (23) includes an outer plate (231) and an inner plate (232) connected together by bolts. The inner plate (232) is located at the bottom of the filter cartridge (21), and the outer plate (231) is located at the bottom of the filter cartridge (21). The bottom of the filter cartridge (21) is a through-hole. The inner diameter of the through-hole of the filter cartridge (21) is smaller than the diameter of the inner plate (232). The bottom of the outer plate (231) is connected to a support component A (6), and a support component B (7) is provided in the support component A (6).

8. A dual-filter mechanical switching type marine pipeline cleaning device according to claim 7, characterized in that, The support component A (6) includes a connecting ring B (62), and a plurality of inclined support rods (61) are connected to the outer ring of the connecting ring B (62). The end of the inclined support rod (61) away from the connecting ring B (62) is connected to the bottom of the outer plate (231) by bolts. The inclined support rod (61) has a wing plate (63). When the filter cartridge (21) rotates, it drives the support component A (6) to rotate. The support component B (7) is connected to the connecting ring B (62).

9. A dual-filter mechanical switching type marine pipeline cleaning device according to claim 7, characterized in that, The support assembly B (7) includes a movable rod (71) that passes through the connecting ring B (62). The top of the movable rod (71) is screwed with an anti-detachment ring, and the bottom of the movable rod (71) is connected to a receiving box B (73). The bottom of the receiving box B (73) is screwed with a locking ring cover (74). There is a movable cavity in the receiving box B (73) and the locking ring cover (74), and there is a movable bead (75) in the movable cavity. The diameter of the movable bead (75) is slightly smaller than the diameter of the movable cavity. A spring (72) is fitted on the movable rod (71) and is located between the connecting ring B (62) and the receiving box B (73).

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