Surface layer cleaning device for submarine pipeline leakage repair

Abstract

The utility model belongs to the technical field of submarine pipeline cleaning, and provides a surface layer cleaning device for submarine pipeline leakage repair, which comprises a pair of hoops and a scraping frame, the pair of hoops are symmetrically hooped outside the two ends of a pipeline, each hoop is composed of a pair of arc plates, and the two ends of the two arc plates are butted together through fasteners; the scraping frame is arranged between the two hoops, the scraping frame can move in the axial direction of the pipeline, the scraping frame is composed of an arc-shaped driving scraping plate and an arc-shaped driven scraping plate, the driving scraping plate and the driven scraping plate correspondingly form two arc plates of the hoops respectively, and the driven scraping plate is pushed by the driving scraping plate. And a plurality of scrapers are annularly distributed on the inner arc surfaces of the driving scraper and the driven scraper and can move in the radial direction. The submarine pipeline surface layer cleaning device is suitable for quick cleaning operation of the surface layer of a submarine pipeline, can greatly reduce labor intensity of maintenance workers, effectively improves working efficiency, can guarantee comprehensive cleaning of the surface layer of the pipeline, and is high in working quality.

Description

Technical Field

[0001] This utility model belongs to the field of submarine pipeline cleaning technology, specifically relating to a surface cleaning device for submarine pipeline leak repair. Background Technology

[0002] Subsea pipelines are sealed pipelines that continuously transport large quantities of oil across the seabed. They are a major component of offshore oilfield development and production systems and are the fastest, safest, and most economical and reliable mode of offshore oil and gas transportation.

[0003] Because the surface of submarine pipelines is easily covered with cement, insulation materials, rust and other deposits, it is necessary to clean the surface of the submarine pipelines regularly to maintain its smoothness. This can reduce the workload of maintenance personnel when a leak occurs in a certain part of the pipeline wall, and make it easier for maintenance personnel to quickly grind and treat the surface of the leaking pipe wall, thus saving repair time.

[0004] Currently, the traditional method of cleaning the surface of submarine pipelines is entirely manual, which is labor-intensive, time-consuming, and prone to omissions, resulting in incomplete cleaning and low work quality.

[0005] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0006] The purpose of this invention is to overcome the problems of high labor intensity, long time consumption, and easy omissions leading to incomplete cleaning in the traditional manual cleaning method of submarine pipelines, and to provide a surface cleaning device for submarine pipeline leak repair.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A surface cleaning device for repairing leaks in subsea pipelines includes: a pair of clamps and a scraper frame. The pair of clamps are symmetrically fitted around both ends of the pipeline. Each clamp is composed of a pair of arc plates, and the ends of the two arc plates are joined together by fasteners. The scraper frame is positioned between the two clamps and is movable along the pipeline axial direction. The scraper frame consists of an active scraper and a driven scraper, both of which are arc-shaped. The active scraper and the driven scraper respectively correspond to the two arc plates of the clamp. The driven scraper is pushed by the active scraper. The inner arc surfaces of both the active and driven scrapers are circumferentially arranged with multiple scrapers. The scrapers are movable radially so that the blades of the scrapers abut against the pipeline surface, thereby making the scraping surface formed by the blades of the multiple scrapers conform to the pipeline shape. Impurities on the pipeline surface are scraped off by the synchronous displacement of the active and driven scrapers.

[0009] In the surface cleaning device for repairing leaks in subsea pipelines as described above, the fasteners are preferably bolts, so that the two arc plates constituting the clamp can be separated from each other.

[0010] Preferably, a lead screw and a limiting post are provided parallel between the two arc plates corresponding to the active scraper.

[0011] Preferably, one end of the lead screw is rotatably mounted on the corresponding arc plate via a bearing, and the other end of the lead screw protrudes outward after passing through the active scraper and the corresponding arc plate to provide a rotating handle;

[0012] The two ends of the limiting post are fixedly connected to the corresponding arc plate, and the active scraper passes through them.

[0013] Preferably, a guide post is provided between the two arc plates corresponding to the driven scraper;

[0014] The two ends of the guide post are fixedly connected to the corresponding arc plates, and the driven scraper passes through them.

[0015] Preferably, the scraper is crescent-shaped;

[0016] The adjacent scrapers are staggered so that the adjacent ends of the two adjacent scrapers can partially overlap.

[0017] Preferably, the scrapers at both ends of the active scraper are always located behind the scrapers at both ends of the driven scraper.

[0018] Preferably, both the active scraper and the driven scraper have a screw cylinder arranged radially on their outer arc surfaces.

[0019] Preferably, the screw barrel is threaded with a set screw, and the outer end of the set screw is provided with a lug;

[0020] The back of the scraper is provided with a rectangular top rod. One end of the rectangular top rod is fixedly connected to the scraper, and the other end passes through the active scraper or the driven scraper and extends into the screw barrel.

[0021] Preferably, the rectangular top rod extends into one end of the screw barrel for upsetting.

[0022] Beneficial effects: This utility model is applicable to the rapid surface cleaning operation of submarine pipelines, which can greatly reduce the labor intensity of maintenance workers and effectively improve work efficiency. At the same time, it can ensure a comprehensive cleaning of the pipeline surface and high work quality. Attached Figure Description

[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0024] Figure 1 This is a front view schematic diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention in actual application;

[0026] Figure 3 This is a schematic diagram of part of the structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the overall structure of the scraper frame of this utility model;

[0028] Figure 5 This is a cross-sectional schematic diagram of the scraper structure of this utility model.

[0029] In the diagram: 1. Clamp; 2. Active scraper; 3. Driven scraper; 4. Scraper; 5. Lead screw; 6. Limiting post; 7. Guide post; 8. Screw; 9. Ejector screw; 10. Rectangular ejector rod. Detailed Implementation

[0030] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the protection scope of this utility model.

[0031] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected" and "linked" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0033] This embodiment aims to provide a surface cleaning device for repairing leaks in subsea pipelines. Its main function is to quickly and thoroughly clean the surface of subsea pipelines, reducing labor and time consumption and improving work efficiency.

[0034] Reference Figure 1-3 It includes: a pair of clamps 1 and a scraper frame. The pair of clamps 1 are symmetrically clamped on the outside of both ends of the pipeline. The clamp 1 is composed of a pair of arc plates, and the two ends of the two arc plates are connected together by fasteners, which are bolts, so that the two arc plates constituting the clamp 1 can be separated from each other. The inner arc surface of the arc plate can be adhered with a rubber pad to increase its friction with the surface of the subsea pipeline.

[0035] The scraper frame is positioned between two clamps 1, near the left end of the subsea pipeline clamp 1. The scraper frame can move to the right along the pipeline axis. The scraper frame consists of an active scraper 2 and a driven scraper 3, both of which are arc-shaped. The active scraper 2 and the driven scraper 3 respectively form two arc plates corresponding to the clamp 1. A lead screw 5 and a limiting post 6 are provided parallel between the two arc plates corresponding to the active scraper 2. The right end of the lead screw 5 is rotatably mounted on the corresponding arc plate via a bearing, which is fixedly nested on the arc plate. The left end of the lead screw 5 passes through the active scraper 2 and the corresponding arc plate and protrudes outward to provide a rotating handle, so that maintenance personnel can rotate the lead screw 5. The two ends of the limiting post 6 are fixedly connected to the corresponding arc plates. During this process, the left end of the limiting post 6 passes through the active scraper 2. Based on this, the rotation of the lead screw 5 drives the active scraper 2 to slide to the right. A guide post 7 is provided between the two arc plates corresponding to the driven scraper 3. The two ends of the guide post 7 are fixedly connected to the corresponding arc plates. During this process, the left end of the guide post 7 passes through the driven scraper 3.

[0036] Reference Figure 3-5 Both the active scraper 2 and the driven scraper 3 have multiple scrapers 4 arranged in a ring on their inner arc surfaces. The scrapers 4 are crescent-shaped and can be moved radially so that the blades of the scrapers 4 contact the surface of the pipe. In this state, two adjacent scrapers 4 are staggered so that the adjacent ends of two adjacent scrapers 4 can partially overlap, thereby making the scraping surface formed by the blades of multiple scrapers 4 match the shape of the pipe to completely cover it in the circumferential direction. The scrapers 4 at both ends of the active scraper 2 are always located behind the scrapers 4 at both ends of the driven scraper 3 so that the driven scraper 3 is pushed by the active scraper 2. The impurities on the surface of the pipe are scraped off by the synchronous displacement of the active scraper 2 and the driven scraper 3.

[0037] Both the active scraper 2 and the driven scraper 3 have multiple screw cylinders 8 arranged radially on their outer arc surfaces corresponding to the inner arc surfaces of their scraper blades 4. The screw cylinders 8 are threaded with set screws 9, and the outer ends of the set screws 9 are welded with lugs for rapid rotation. The back of the scraper blade 4 is provided with a rectangular push rod 10. One end of the rectangular push rod 10 is fixedly connected to the scraper blade 4, and the other end passes through the active scraper 2 or the driven scraper 3 and extends into the screw cylinder 8. The end of the rectangular push rod 10 extending into the screw cylinder 8 is upset to prevent it from falling off the active scraper 2 or the driven scraper 3. By rotating the set screw 9, the upset end of the rectangular push rod 10 can be squeezed, causing the other end of the set screw 9 to squeeze the scraper blade 4, thereby causing the blade of the scraper blade 4 to contact the surface of the pipeline. When the active scraper 2 pushes the driven scraper 3 to move synchronously, the surface of the subsea pipeline can be scraped and cleaned.

[0038] In actual use, the two clamps 1 are respectively fitted onto both ends of the subsea pipeline. At this time, the active scraper 2 and the driven scraper 3 are automatically aligned. The positions of the active scraper 2 and the driven scraper 3 are adjusted to the leftmost end of the pipeline, and the scraper blades 4 of the active scraper 2 and the driven scraper 3 are aligned front to back. Among the scraper blades 4 that are aligned, the scraper blade 4 on the active scraper 2 must be set further back. Then, the set screws 9 in each screw cylinder 8 are rotated in sequence so that the blades of all scraper blades 4 only touch the surface of the pipeline and completely cover it in the circumferential direction. Then rotate... Rotating screw 5 causes the active scraper 2 to push the driven scraper 3 to slide synchronously towards the right end of the pipe, thus scraping and cleaning the impurities on the pipe surface. During this process, the scraper 4 on the active scraper 2 will push the scraper 4 on the driven scraper 3, and the scraped impurities will automatically disperse into the water. After the active scraper 2 drives the driven scraper 3 to the rightmost end of the pipe, remove clamp 1. When using it again, first adjust the position of the scraper 4 on the driven scraper 3 radially, and then move the driven scraper 3 to move its scraper 4 back to in front of the scraper 4 on the active scraper 2.

[0039] The cleaning device provided in this embodiment is suitable for rapid surface cleaning of submarine pipelines. It can greatly reduce the labor intensity of maintenance workers and effectively improve work efficiency. At the same time, it can ensure a comprehensive cleaning of the pipeline surface and high work quality.

[0040] It is understood that the above description is merely exemplary and the embodiments of this application do not limit the scope of the application.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be within the scope of protection of the pending claims of the present utility model.

Claims

1. A surface cleaning device for subsea pipeline leak repair, characterized in that, The utility model relates to a pipe cleaning device, which comprises: a pair of hoops symmetrically sleeved outside the two ends of a pipe, the hoops being composed of a pair of arc plates, and the two ends of the two arc plates being butted together by fasteners; a scraping frame arranged between the two hoops and capable of moving axially along the pipe, the scraping frame being composed of a driving scraping plate and a driven scraping plate, both of which are arc-shaped, the driving scraping plate and the driven scraping plate corresponding to the two arc plates of the hoops respectively, the driven scraping plate being pushed by the driving scraping plate, the inner arc surfaces of the driving scraping plate and the driven scraping plate being provided with a plurality of scrapers arranged in a ring shape, the scrapers being capable of moving radially so that the cutting edges of the scrapers are in contact with the surface layer of the pipe, and then the scraping surface formed by the cutting edges of the plurality of scrapers is in conformity with the shape of the pipe, and the impurities on the surface layer of the pipe are scraped off by the synchronous movement of the driving scraping plate and the driven scraping plate.

2. The subsea pipeline leak repair jacket cleaning apparatus of claim 1, wherein, The fasteners are bolts, so that the two arc plates of the hoops can be separated from each other.

3. The subsea pipeline leak repair jacket cleaning apparatus of claim 1, wherein, A lead screw and a limiting column are arranged in parallel between the two arc plates corresponding to the driving scraping plate.

4. The subsea pipeline leak repair jacket cleaning apparatus of claim 3, wherein, One end of the lead screw is rotatably mounted on the corresponding arc plate through a bearing, and the other end of the lead screw is externally protruded after penetrating through the driving scraping plate and the corresponding arc plate to provide a rotating handle. The two ends of the limiting column are fixedly butted to the corresponding arc plates, and the limiting column penetrates through the driving scraping plate.

5. The subsea pipeline leak repair jacket cleaning apparatus of claim 1, wherein, A guide column is arranged between the two arc plates corresponding to the driven scraping plate. The two ends of the guide column are fixedly butted to the corresponding arc plates, and the guide column penetrates through the driven scraping plate.

6. The subsea pipeline leak repair jacket cleaning apparatus of claim 1, wherein, The scrapers are crescent-shaped. The adjacent two scrapers are arranged in a staggered manner, so that the adjacent ends of the adjacent two scrapers can be partially overlapped.

7. The subsea pipeline leak repair jacket cleaning apparatus of claim 1, wherein, The scrapers at the two ends of the driving scraping plate are always located behind the scrapers at the two ends of the driven scraping plate.

8. The subsea pipeline leak repair jacket cleaning apparatus of claim 1, wherein, The outer arc surfaces of the driving scraping plate and the driven scraping plate are provided with screw cylinders along the radial direction.

9. The subsea pipeline leak repair jacket cleaning apparatus of claim 8, wherein, A jack screw is sleeved in the screw cylinder, and the outer end of the jack screw is provided with a knob. The back of the scraper is provided with a rectangular jack rod, one end of the rectangular jack rod being fixedly butted to the scraper, and the other end of the rectangular jack rod being inserted into the screw cylinder after penetrating through the driving scraping plate or the driven scraping plate.

10. The subsea pipeline leak repair jacket cleaning apparatus of claim 9, wherein, The end of the rectangular jack rod inserted into the screw cylinder is upset.

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