Seabed petroleum pipeline cleaning pig

By using a double-axis extension asynchronous motor to drive the rotating plate and ring plate to rotate on the submarine oil pipeline cleaning pig, combined with wire bristles to scrape dirt, the problem of poor cleaning effect is solved, and efficient dirt cleaning and simple maintenance operations are achieved.

CN223185130UActive Publication Date: 2025-08-05TIANJIN DAHAI HARBOR SHIPPING CO LTD
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Patent Information

Application Number
CN202422328399.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2025-08-05
Estimated Expiration
2034-09-24

AI Technical Summary

Technical Problem

When cleaning pigs with existing submarine oil pipelines, the cleaning effect is poor when cleaning dirt, resulting in dirt residue affecting oil transportation.

Method used

A submarine oil pipeline cleaning pig was designed, using a double-axis extension asynchronous motor to drive the rotating plate and ring plate to rotate, combined with wire bristles to scrape dirt, and facilitate installation and removal of ring plates through electromagnetic locks. It is equipped with real-time monitoring of cameras, and the ring plates and leather bowls can be used to achieve reciprocating and moving cleaning.

Benefits of technology

Improves cleaning effect, avoids dirt blocking the pipeline, ensures smooth oil delivery, and simplifies the installation and maintenance process of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a seabed petroleum pipeline cleaning pig, which belongs to the technical field of petroleum pipeline cleaning tools and comprises a cleaning column, annular plates and leather cups are sleeved on the front side and the rear side of the outer wall of the cleaning column, a plurality of steel wire bristles for scraping and brushing the inner wall of a seabed petroleum pipeline are fixedly arranged on the outer walls of the two annular plates, and rotating plates are arranged at the front end and the rear end of the cleaning column. And connecting assemblies connected with the annular plate are arranged in the two rotating plates correspondingly, each connecting assembly comprises a plurality of electromagnetic locks, a plurality of fixing grooves are formed in the surfaces of the outer side walls of the two rotating plates correspondingly, and the electromagnetic locks are fixed in the fixing grooves. The two annular plates are driven by the double-shaft-extension asynchronous motor and the two rotating plates to rotate at the same time, dirt on the inner wall of the submarine petroleum pipeline is scraped off through the steel wire bristles on the annular plates, the situation that the dirt blocks the submarine petroleum pipeline and influences petroleum conveying is avoided, the annular plates and the leather cups are arranged on the front side and the rear side of the cleaning column, and the cleaning effect is good. The device can move back and forth for cleaning, and the cleaning effect is good.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil pipeline cleaning tools, and belongs to a submarine oil pipeline cleaning pig. Background Art

[0002] Subsea pipelines are pipe systems used to transport oil and natural gas along the ocean floor. These pipelines are typically constructed of steel or other corrosion-resistant materials and are designed to withstand the pressures and harsh conditions of deep-sea environments. Subsea pipelines are primarily used to transport crude oil and natural gas from offshore oil and gas fields to onshore processing facilities or storage tanks; and to connect platforms and facilities, such as offshore drilling platforms, production platforms, and other offshore facilities, to facilitate resource extraction and transportation.

[0003] After prolonged use, the inner walls of submarine oil pipelines accumulate a large amount of dirt, which in turn affects the transport of oil. These cleaning pigs are regularly used for cleaning and maintenance of submarine oil pipelines. These aren't actual pigs, but mechanical devices called "pigs." These pigs operate inside pipelines, performing various tasks such as removing impurities, inspecting pipeline conditions, and applying internal coatings.

[0004] For example, the prior art publication number CN108361471B is a speed-adjustable submarine oil pipeline cleaning pig. This prior art improves cleaning efficiency and safety. Compared with the mechanically controlled speed-adjustable pipeline cleaning pig, it solves the response lag problem of the mechanical structure when controlling the speed, combines the advantages of the two cleaning pigs, and improves the speed controllability and cleaning efficiency of the pipeline pig.

[0005] However, the above-mentioned prior art still has the following problems when used: due to the different adhesion of dirt adhered to the inner wall of the submarine oil pipeline, when it is cleaned by a mobile cleaning pig, residues are easily left on the inner wall of the submarine oil pipeline, and the cleaning effect is poor. Based on this, the utility model provides a submarine oil pipeline cleaning pig with good cleaning effect. Utility Model Content

[0006] To this end, the utility model provides a submarine oil pipeline cleaning pig to solve the problem in the prior art that the cleaning pig has a single cleaning function, resulting in poor cleaning effect.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] A submarine oil pipeline cleaning pig includes a cleaning column, wherein the front and rear sides of the outer wall of the cleaning column are provided with ring plates and leather cups, and the outer walls of the two ring plates are fixed with multiple steel wire bristles for scraping the inner wall of the submarine oil pipeline, which are used to scrape off the dirt adhering to the inner wall of the submarine oil pipeline. The front and rear ends of the cleaning column are provided with rotating plates, and the two rotating plates are provided with connecting components for connecting the ring plates. The connecting components include multiple electromagnetic locks, and the outer wall surfaces of the two rotating plates are provided with multiple fixing grooves. The electromagnetic locks are fixed in the fixing grooves, and the inner wall surfaces of the two ring plates are provided with multiple locking grooves. The electromagnetic locks are locked with the locking grooves, and the ring plates and the rotating plates are connected by the locking method of the electromagnetic locks, so as to facilitate the installation and disassembly of the ring plates. A rotating component that drives the two rotating plates to rotate is provided inside the cleaning column.

[0009] Furthermore, the two leather cups are distributed between the two ring plates, and the sides of the two ring plates and the two leather cups that are close to each other are fixed with rings. The rings are put on the cleaning column and are detachably fixed to the cleaning column. The rings are used to facilitate the installation of the ring plates and leather cups on the cleaning column.

[0010] Furthermore, a mounting hole is provided at the front end of the cleaning column, and the rotating assembly includes a double-axis asynchronous motor, which is fixed in the mounting hole. The front and rear output shafts of the double-axis asynchronous motor are respectively fixed to the two rotating plates. The double-axis asynchronous motor can be used to drive the two rotating plates to rotate at the same time, thereby saving costs.

[0011] Furthermore, the two rotating plates are both arranged in the mounting holes, and the outer walls of the two rotating plates are connected to the mounting holes through bearings, which can not only improve the stability of the rotating plates during rotation, but also prevent the oil in the submarine oil pipeline from entering the mounting holes.

[0012] Furthermore, a plurality of limit grooves are provided on the front and rear sides of the outer wall of the cleaning column, and a plurality of limit blocks are fixedly provided on the inner wall of each collar. The plurality of limit blocks are respectively arranged in the plurality of limit grooves. The limit blocks cooperate with the limit grooves to improve the stability of the collar during movement.

[0013] Furthermore, a groove is provided on the side away from each other of the two ring plates, a camera is fixed inside the groove, and tempered glass is provided on the outside of the camera, and the tempered glass is fixed inside the groove. With the help of the camera, the scene in the submarine oil pipeline can be captured in real time, which is convenient for the staff to observe the inside of the submarine oil pipeline.

[0014] Furthermore, a battery compartment is fixedly embedded on the cleaning column and the two ring plates, and a rechargeable battery is arranged inside the battery compartment. The rechargeable battery can provide power for the dual-axis asynchronous motor and the camera.

[0015] Furthermore, an annular groove is provided on one side of the two rotating plates away from each other, and a shift block is fixed inside the two annular grooves, so that the staff can hold the shift block to carry the device conveniently.

[0016] The utility model has the following advantages:

[0017] 1. The utility model drives two ring plates to rotate simultaneously through a double-axis asynchronous motor and two rotating plates, and uses multiple wire brushes on the ring plates to scrape off dirt on the inner wall of the submarine oil pipeline, so as to prevent dirt from clogging the submarine oil pipeline and affecting the transportation of oil. In addition, the ring plates and leather cups arranged on the front and rear sides of the cleaning column enable the device to move back and forth for cleaning, and the cleaning effect is good.

[0018] 2. The ring plate and the rotating plate are fixed by the electromagnetic lock and the lock groove, which makes it convenient for the staff to install and disassemble the ring plate and the leather cup. The structure is simple and it is very time-saving and labor-saving to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0021] Figure 1 A schematic diagram of the overall structure provided by the utility model;

[0022] Figure 2 A side view of the overall structure provided by the utility model;

[0023] Figure 3 A sectional view of the overall structure provided by the utility model;

[0024] Figure 4 This is a structural diagram of the ring plate and cleaning column provided by the utility model;

[0025] Figure 5 Schematic diagram of the ring plate and wire brush bristles provided by the utility model;

[0026] Figure 6 This is a cross-sectional view of the rotating plate and the ring plate provided by the utility model.

[0027] In the figure: 1. Cleaning column; 2. Ring plate; 3. Leather cup; 4. Steel brush bristles; 5. Rotating plate; 6. Connecting assembly; 7. Rotating assembly; 8. Ring; 9. Mounting hole; 10. Limiting groove; 11. Limiting block; 12. Embossed groove; 13. Camera; 14. Tempered glass; 15. Battery compartment; 16. Annular groove; 17. Shifting block;

[0028] 601, electromagnetic lock; 602, fixing slot; 603, lock slot;

[0029] 701. Double-shaft asynchronous motor. DETAILED DESCRIPTION

[0030] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0031] Refer to the instruction manual Figure 1-6 The utility model provides a submarine oil pipeline cleaning pig, including a cleaning column 1, the front and rear sides of the outer wall of the cleaning column 1 are both sleeved with ring plates 2 and leather cups 3, the outer walls of the two ring plates 2 are fixed with a plurality of steel wire bristles 4 for scraping the inner wall of the submarine oil pipeline, the two leather cups 3 are distributed between the two ring plates 2, the sides of the two ring plates 2 close to each other and the sides of the two leather cups 3 close to each other are both fixed with collars 8, the collars 8 are sleeved on the cleaning column 1 and are detachably fixed to the cleaning column 1, and the collars 8 are used to facilitate the installation of the ring plates 2 and the leather cups 3 on the cleaning column 1;

[0032] The cleaning column 1 is provided with a rotating plate 5 at both ends, and a connecting assembly 6 for connecting the ring plate 2 is provided inside the two rotating plates 5;

[0033] A rotating assembly 7 for driving the two rotating plates 5 to rotate is provided inside the cleaning column 1. Specifically, a mounting hole 9 is provided at the front end of the cleaning column 1. The rotating assembly 7 includes a double-axis asynchronous motor 701. The double-axis asynchronous motor 701 is fixed in the mounting hole 9. The front and rear output shafts of the double-axis asynchronous motor 701 are respectively fixed to the two rotating plates 5. The double-axis asynchronous motor 701 can simultaneously drive the two rotating plates 5 to rotate together, thereby saving costs.

[0034] Moreover, the two rotating plates 5 are both arranged in the mounting holes 9, and the outer walls of the two rotating plates 5 are connected to the mounting holes 9 through bearings, which can not only improve the stability of the rotating plates 5 during rotation, but also prevent the oil in the submarine oil pipeline from entering the mounting holes 9. An annular groove 16 is provided on the side away from each other of the two rotating plates 5, and a shift block 17 is fixed inside the two annular grooves 16. The staff can hold the shift block 17 to carry the device conveniently.

[0035] When in use, the device is first placed in the submarine oil pipeline to be cleaned. When the entire device moves in the submarine oil pipeline, the dual-axis asynchronous motor 701 is used to drive the two rotating plates 5 to rotate, and the two rotating plates 5 drive the two ring plates 2 to rotate simultaneously. The multiple steel wire bristles 4 on the ring plates 2 are used to scrape off the dirt on the inner wall of the submarine oil pipeline to prevent the dirt from clogging the submarine oil pipeline and affecting the transportation of oil. By arranging the ring plates 2 and the leather cups 3 on the front and rear sides of the cleaning column 1, the device can move back and forth for cleaning, and the cleaning effect is good.

[0036] Refer to the instruction manual Figure 1-6 The connecting assembly 6 includes a plurality of electromagnetic locks 601. The outer wall surfaces of the two rotating plates 5 are each provided with a plurality of fixing grooves 602. The electromagnetic locks 601 are fixed in the fixing grooves 602. The inner wall surfaces of the two ring plates 2 are each provided with a plurality of locking grooves 603. The electromagnetic locks 601 are locked with the locking grooves 603 to facilitate the installation and removal of the rotating plate 5.

[0037] A plurality of limiting grooves 10 are provided on both the front and rear sides of the outer wall of the cleaning column 1, and a plurality of limiting blocks 11 are fixedly provided on the inner wall of each collar 8. The plurality of limiting blocks 11 are respectively arranged in the plurality of limiting grooves 10. The limiting blocks 11 cooperate with the limiting grooves 10 to improve the stability of the collar 8 when it moves;

[0038] The ring plate 2 and the leather cup 3 are installed with the help of the collar 8, and the ring plate 2 and the rotating plate 5 are fixed using the electromagnetic lock 601 and the lock groove 603. When not in use, the electromagnetic lock 601 is removed from the lock groove 603, and then the multiple bolts on the collar 8 are loosened, and the ring plate 2 and the leather cup 3 can be removed from the cleaning column 1 for replacement. The structure is simple and it is very time-saving and labor-saving to use.

[0039] Refer to the instruction manual Figure 1-6 , the two ring plates 2 are each provided with an embedding groove 12 on one side away from each other, a camera 13 is fixed inside the embedding groove 12, and a tempered glass 14 is provided outside the camera 13. The tempered glass 14 is fixed inside the embedding groove 12. With the help of the camera 13, the image in the submarine oil pipeline can be captured in real time, which is convenient for the staff to observe the inside of the submarine oil pipeline;

[0040] A battery compartment 15 is fixedly embedded on the cleaning column 1 and the two ring plates 2. A rechargeable battery is arranged inside the battery compartment 15. The rechargeable battery can provide power for the dual-axis asynchronous motor 701 and the camera 13.

[0041] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A submarine oil pipeline cleaning pig, comprising a cleaning column (1), characterized in that: The front and rear sides of the outer wall of the cleaning column (1) are both sleeved with ring plates (2) and leather cups (3), and the outer walls of the two ring plates (2) are both fixed with a plurality of steel wire brushes (4) for scraping the inner wall of the submarine oil pipeline; The cleaning column (1) is provided with a rotating plate (5) at both the front and rear ends, and a connecting assembly (6) for connecting the ring plate (2) is provided inside the two rotating plates (5), and the connecting assembly (6) includes a plurality of electromagnetic locks (601), and the outer wall surfaces of the two rotating plates (5) are provided with a plurality of fixing grooves (602), and the electromagnetic locks (601) are fixed in the fixing grooves (602), and the inner wall surfaces of the two ring plates (2) are provided with a plurality of locking grooves (603), and the electromagnetic locks (601) are locked with the locking grooves (603); A rotating assembly (7) for driving two rotating plates (5) to rotate is provided inside the cleaning column (1).

2. A submarine oil pipeline cleaning pig according to claim 1, characterized in that: The two leather cups (3) are distributed between the two ring plates (2). The sides of the two ring plates (2) and the sides of the two leather cups (3) are both fixed with collars (8). The collars (8) are sleeved on the cleaning column (1) and are detachably fixed to the cleaning column (1).

3. The submarine oil pipeline cleaning pig according to claim 1, characterized in that: A mounting hole (9) is provided at the front end of the cleaning column (1); the rotating assembly (7) comprises a double-axle asynchronous motor (701); the double-axle asynchronous motor (701) is fixed in the mounting hole (9); and the front and rear output shafts of the double-axle asynchronous motor (701) are respectively fixed to two rotating plates (5).

4. The submarine oil pipeline cleaning pig according to claim 3, characterized in that: The two rotating plates (5) are both arranged in the mounting hole (9), and the outer walls of the two rotating plates (5) are connected to the mounting hole (9) via a bearing.

5. The submarine oil pipeline cleaning pig according to claim 2, characterized in that: The outer wall of the cleaning column (1) is provided with a plurality of limiting grooves (10) on both the front and rear sides, and the inner wall of each collar (8) is fixed with a plurality of limiting blocks (11), and the plurality of limiting blocks (11) are respectively arranged in the plurality of limiting grooves (10).

6. The submarine oil pipeline cleaning pig according to claim 1, characterized in that: A recessed groove (12) is provided on one side of the two ring plates (2) away from each other. A camera (13) is fixedly provided inside the recessed groove (12). A tempered glass (14) is provided outside the camera (13). The tempered glass (14) is fixed inside the recessed groove (12).

7. The submarine oil pipeline cleaning pig according to claim 1, characterized in that: A battery compartment (15) is fixedly embedded on the cleaning column (1) and the two ring plates (2), and a rechargeable battery is arranged inside the battery compartment (15).

8. The submarine oil pipeline cleaning pig according to claim 1, characterized in that: An annular groove (16) is provided on one side of the two rotating plates (5) away from each other, and a shifting block (17) is fixedly provided inside the two annular grooves (16).

Citation Information

Patent Citations

  • A speed-adjustable subsea oil pipeline cleaning pig

    CN108361471B