Descaling device

Abstract

The utility model provides a descaling device, which relates to the technical field of descaling devices and comprises a columnar rod, a power supply structure, a pipeline inner wall vibration knocking structure, a pipeline inner wall scaling scraping structure and a sliding guide part. According to the device, the rope is adopted to pull the device to move in the oil extraction pipeline, the structure of the inner wall of the oil extraction pipeline is vibrated, knocked and loosened through the pipeline inner wall scaling scraping structure, and then the loosened inner wall scaling of the oil extraction pipeline is scraped through the rear pipeline inner wall scaling scraping structure; in the moving process of the device, the sliding guide pieces at the two ends are used for guiding, it is guaranteed that the device body is located at the axis position of an inner cavity of the oil extraction pipeline, pipeline inner wall scaling abrasion caused in the pipeline inner wall scaling scraping process is avoided, the cleaning efficiency of the oil extraction pipeline inner wall scaling is improved through the operation, and scaling residues are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of descaling devices, in particular to a descaling device. Background Art

[0002] In oil production, due to the high viscosity of oil during oil field exploitation, it is easy to form sedimentation inside the pipeline, causing scale and wax accumulation on the inner wall of the oil pipe, affecting normal oil transportation work and reducing oil transportation efficiency.

[0003] The existing descaling device has a poor cleaning efficiency for the scale on the inner wall of the oil production pipeline, and scale residues are likely to remain. Utility Model Content

[0004] The utility model aims to provide a descaling device, which has the advantage of high cleaning efficiency for the inner wall structure of the oil production pipeline, and solves the technical problem that the existing descaling device has poor cleaning efficiency for the scale on the inner wall of the oil production pipeline.

[0005] The utility model provides a descaling device, comprising:

[0006] A columnar rod, inside of which a power supply structure is assembled;

[0007] The outer wall of the columnar rod is detachably equipped with a pipeline inner wall vibration knocking structure and a pipeline inner wall scaling scraping structure in sequence from the moving front end to the middle part;

[0008] The power supply structure is electrically connected to the pipeline inner wall vibration knocking structure;

[0009] Both ends of the outer wall of the columnar rod are detachably equipped with sliding guides, and the outer wall of the sliding guide is slidably fitted with the inner wall of the oil production pipeline.

[0010] As a further optimization scheme, in order to loosen the scale on the inner wall of the oil production pipeline by electric knocking, so as to facilitate subsequent scraping, the pipeline inner wall vibration knocking structure includes:

[0011] The arc-shaped mounting plate has four arranged around the circumference;

[0012] The outer side surface of the arc-shaped mounting plate is vertically fixed with a vibration motor;

[0013] An arc-shaped knocking plate is fixedly mounted on the end of the vibration motor, and the arc-shaped knocking plate has the same curvature as the inner wall of the oil production pipeline.

[0014] As a further optimization scheme, in order to improve the knocking effect of the arc-shaped knocking plate on the inner wall of the oil production pipeline through the strip-shaped protrusions, the outer side surface of the arc-shaped knocking plate is uniformly and horizontally integrally formed with strip-shaped protrusions along the length direction.

[0015] As a further optimization scheme, in order to scrape off part of the scale on the inner wall of the oil production pipeline by the first scraping ring, and then scrape off the remaining scale on the inner wall of the oil production pipeline by the second scraping ring, the pipeline inner wall scale scraping structure includes:

[0016] A first scraper ring and a second scraper ring are sequentially sleeved on the outer wall of the columnar rod from the moving front end to the middle part;

[0017] The first scraping ring and the second scraping ring are coaxially fixedly assembled with a first connecting ring on the inner annular edge, and the first connecting ring is sleeved on the outer wall of the columnar rod;

[0018] The front and rear side walls of the first connecting ring are both screwed with first fixing bolts, and the ends of the first fixing bolts are screwed on the outer wall of the columnar rod;

[0019] A gap is left between the outer ring surface of the first scraper ring and the inner wall of the oil production pipeline;

[0020] The outer ring surface of the second scraper ring is slidably fitted with the inner wall of the oil production pipeline.

[0021] As a further optimization scheme, in order to collect the scale scraped off the inner wall of the oil production pipeline and facilitate the discharge of the scraped scale out of the oil production pipeline, the first scraper ring and the second scraper ring are shaped like conical buckets, and the opening ends of the first scraper ring and the second scraper ring are facing the moving end of the columnar rod.

[0022] As a further optimization scheme, in order to supply power to the parallel-connected pipeline inner wall vibration and percussion structures, the power supply structure includes:

[0023] A cavity is provided in the middle of the movable end of the columnar rod;

[0024] a rechargeable battery inserted into the cavity;

[0025] The outer wall of the columnar rod is provided with a mounting groove corresponding to the vibration knocking structure on the inner wall of the pipeline;

[0026] The inner end of the pipeline inner wall vibration knocking structure is glued and fixed in the corresponding installation groove;

[0027] The pipeline inner wall vibration and knocking structure is connected in parallel and electrically connected to the rechargeable battery.

[0028] As a further optimization solution, in order to slide and guide the movement of the columnar rod in the oil production pipeline, the sliding guide member includes:

[0029] A guide ring, the inner ring surface edge of which is coaxially fixedly assembled with a second connecting ring;

[0030] The guide ring and the second connecting ring are sleeved on the outer wall of the columnar rod;

[0031] The front and rear side walls of the second connecting ring are both screwed with second fixing bolts, and the ends of the second fixing bolts are screwed on the outer wall of the columnar rod;

[0032] The outer wall of the guide ring is evenly and movably clamped with balls, and the outer ends of the balls are rollingly fitted with the inner wall of the oil production pipeline.

[0033] As a further optimization solution, in order for the columnar rod to be pulled by the connecting rope to move in the oil production pipeline, the columnar rod comprises:

[0034] A round rod, wherein the cavity is provided in the middle of the moving end of the round rod;

[0035] The movable end of the round rod is fixedly equipped with a first connecting block;

[0036] A second connecting block is threadedly connected in the cavity.

[0037] As a further optimization solution, in order to facilitate the connection between the connecting rope and the first connecting block and the second connecting block, the outer ends of the first connecting block and the second connecting block are fixedly equipped with lifting rings.

[0038] As a further optimization scheme, in order to further clean the oil production pipeline after the scale is scraped off, the cleaning ring is detachably fixedly mounted on the outer wall of the columnar rod, and the cleaning ring is located between the scale scraping structure on the inner wall of the pipeline and the sliding guide on the movable end of the columnar rod;

[0039] The outer wall of the cleaning ring is evenly provided with hard bristles, and the outer wall of the hard bristles fits the inner wall of the oil production pipeline.

[0040] The utility model provides a descaling device through improvement, which has the following improvements and advantages compared with the prior art:

[0041] The device uses a rope pulling device to move inside the oil production pipeline, and loosens the structure of the inner wall of the oil production pipeline by vibrating and knocking through the scale scraping structure on the inner wall of the pipeline, and then scrapes off the loose scale on the inner wall of the oil production pipeline through the scale scraping structure on the inner wall of the pipeline at the rear. During the movement of the device, it is guided by sliding guides at both ends to ensure that the main body of the device is located at the axial center position of the inner cavity of the oil production pipeline, avoiding wear of scale on the inner wall of the pipeline during the process of scraping off scale on the inner wall of the pipeline. The above operation improves the cleaning efficiency of scale on the inner wall of the oil production pipeline and avoids scale residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0043] Figure 1 It is a schematic diagram of the structure of the utility model;

[0044] Figure 2 It is a structural schematic diagram of the pipeline inner wall vibration knocking structure of the utility model;

[0045] Figure 3 It is a structural schematic diagram of the pipe inner wall scale scraping structure of the utility model;

[0046] Figure 4 It is a structural schematic diagram of the power supply structure of the utility model;

[0047] Figure 5 This is a schematic diagram of the structure of the sliding guide member of the utility model.

[0048] Description of reference numerals:

[0049] 1-columnar rod, 11-round rod, 12-first connecting block, 13-second connecting block, 14-hanging ring, 2-pipe inner wall vibration knocking structure, 21-arc mounting plate, 22-vibration motor, 23-arc knocking plate, 24-strip protrusion, 3-pipe inner wall scale scraping structure, 31-first scraping ring, 32-second scraping ring, 33-first connecting ring, 34-first fixing bolt, 4-sliding guide, 41-guide ring, 42-second connecting ring, 43-second fixing bolt, 44-ball, 5-cleaning ring, 6-power supply structure, 61-cavity, 62-rechargeable battery, 63-installation groove. DETAILED DESCRIPTION

[0050] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0052] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] See also Figure 1-5 The utility model provides a technical solution: a descaling device, comprising:

[0054] A columnar rod 1, inside of which a power supply structure 6 is assembled;

[0055] The outer wall of the columnar rod 1 is detachably equipped with a pipeline inner wall vibration knocking structure 2 and a pipeline inner wall scale scraping structure 3 from the moving front end to the middle part. The pipeline inner wall vibration knocking structure 2 is used to first vibrate and knock the scale on the inner wall of the oil production pipeline to loosen it, and then the pipeline inner wall scale scraping structure 3 is used to directly scrape the loosened scale.

[0056] The power supply structure 6 is electrically connected to the pipeline inner wall vibration and knocking structure 2, and the pipeline inner wall vibration and knocking structure 2 is powered by the power supply structure 6;

[0057] Both ends of the outer wall of the columnar rod 1 are detachably equipped with sliding guides 4, and the outer wall of the sliding guide 4 slides and fits with the inner wall of the oil production pipeline; during the movement of the device, it is guided by the sliding guides 4 at both ends to ensure that the device body is located at the axial center position of the inner cavity of the oil production pipeline, avoiding wear of the inner wall of the pipeline during the process of scraping scale on the inner wall of the pipeline, and ensuring the normal percussion, vibration and scraping process of the scale on the inner wall of the oil production pipeline.

[0058] In some embodiments, in order to loosen the scale on the inner wall of the oil production pipeline by electric knocking and facilitate subsequent scraping, the pipeline inner wall vibration knocking structure 2 includes:

[0059] There are four arc-shaped mounting plates 21 distributed around the circumference;

[0060] A vibration motor 22 is vertically fixedly mounted on the outer side of the arc-shaped mounting plate 21;

[0061] An arc-shaped knocking plate 23 is fixedly mounted on the end of the vibration motor 22, and the arc-shaped knocking plate 23 has the same curvature as the inner wall of the oil production pipeline; the vibration motor 22 is connected to an external power supply to drive the arc-shaped knocking plate 23 to vibrate and vibrate and knock on the inner wall of the oil production pipeline.

[0062] In some embodiments, in order to improve the knocking effect of the arc-shaped knocking plate 23 on the inner wall of the oil production pipe through the strip-shaped protrusions 24, the outer side surface of the arc-shaped knocking plate 23 is uniformly and laterally integrally formed with strip-shaped protrusions 24 along the length direction. The evenly distributed strip-shaped protrusions 24 are in contact with the inner wall of the oil production pipe. Compared with the arc-shaped knocking plate 23 directly contacting the inner wall of the oil production pipe, the force area is reduced, thereby improving the local knocking strength.

[0063] In some embodiments, in order to scrape off part of the scale on the inner wall of the oil production pipeline by the first scraping ring 31 and then scrape off the remaining scale on the inner wall of the oil production pipeline by the second scraping ring 32, the pipeline inner wall scale scraping structure 3 includes:

[0064] The first scraper ring 31 and the second scraper ring 32 are sequentially sleeved on the outer wall of the columnar rod 1 from the moving front end to the middle part;

[0065] The first scraper ring 31 and the second scraper ring 32 are coaxially fixedly assembled with a first connecting ring 33, and the first connecting ring 33 is sleeved on the outer wall of the columnar rod 1;

[0066] The front and rear side walls of the first connecting ring 33 are both screwed with first fixing bolts 34, and the ends of the first fixing bolts 34 are screwed on the outer wall of the columnar rod 1;

[0067] A gap is left between the outer ring surface of the first scraper ring 31 and the inner wall of the oil production pipeline;

[0068] The outer ring surface of the second scraper ring 32 is slidably fitted with the inner wall of the oil production pipeline;

[0069] The first scraper ring 31 scrapes off the scale on the inner wall of the oil production pipeline in contact with the part, and the second scraper ring 32 scrapes off the remaining scale on the inner wall of the oil production pipeline. The scale on the inner wall of the oil production pipeline is scraped off twice to avoid the large resistance caused by unified scraping at one time, which affects the smoothness of the device movement and can ensure the cleanliness of the scale scraped off on the inner wall of the oil production pipeline.

[0070] In some embodiments, in order to collect the scale scraped off the inner wall of the oil production pipeline and facilitate the discharge of the scraped scale from the oil production pipeline, the first scraper ring 31 and the second scraper ring 32 are shaped like a conical bucket, and the opening ends of the first scraper ring 31 and the second scraper ring 32 are facing the moving end of the columnar rod 1; the conical bucket shape can form a chamber for receiving the scraped scale, so that the scraped scale can be discharged from the oil production pipeline after being uniformly collected.

[0071] In some embodiments, in order to supply power to the parallel-connected pipeline inner wall vibration and percussion structures 2, the power supply structure 6 includes:

[0072] The cavity 61 is opened in the middle of the moving end of the columnar rod 1;

[0073] A rechargeable battery 62 is inserted into the cavity 61. The rechargeable battery 62 can be charged and has a switch for controlling power supply;

[0074] The outer wall of the columnar rod 1 is provided with a mounting groove 63 corresponding to the vibration knocking structure 2 on the inner wall of the pipeline;

[0075] The inner side end of the pipeline inner wall vibration knocking structure 2 is pasted and fixed in the corresponding installation groove 63. This pasting and fixing can be disassembled by force, and can be re-pasted and fixed by glue, which is convenient for replacement and maintenance of the pipeline inner wall vibration knocking structure 2;

[0076] The pipeline inner wall vibration and knocking structure 2 is connected in parallel and electrically connected to the rechargeable battery 62 .

[0077] In some embodiments, in order to slide and guide the movement of the columnar rod 1 in the oil production pipeline, the sliding guide member 4 includes:

[0078] The guide ring 41 has a second connecting ring 42 fixedly mounted coaxially on the inner ring edge thereof;

[0079] The guide ring 41 and the second connecting ring 42 are sleeved on the outer wall of the columnar rod 1;

[0080] The front and rear side walls of the second connecting ring 42 are both screwed with second fixing bolts 43, and the ends of the second fixing bolts 43 are screwed on the outer wall of the columnar rod 1;

[0081] The outer wall of the guide ring 41 is evenly and movably clamped with balls 44, and the outer ends of the balls 44 roll and fit against the inner wall of the oil production pipeline; when the columnar rod 1 moves in the oil production pipeline, the balls 44 on the outer wall of the guide ring 41 roll and fit against the inner wall of the oil production pipeline, ensuring the smooth movement of the columnar rod 1 and limiting the movement of the main body of the columnar rod 1 along the inner axis of the oil production pipeline.

[0082] In some embodiments, in order for the columnar rod 1 to be pulled by the connecting rope to move in the oil production pipeline, the columnar rod 1 includes:

[0083] The round rod 11, the cavity 61 is opened in the middle of the moving end of the round rod 11;

[0084] The movable end of the round rod 11 is fixedly equipped with a first connecting block 12;

[0085] The second connection block 13 is screwed into the cavity 61 , and the second connection block 13 can be screwed off. After the second connection block 13 is screwed off, it is convenient to perform the switching operation on the rechargeable battery 62 .

[0086] In some embodiments, in order to facilitate the connection of the connecting rope with the first connecting block 12 and the second connecting block 13 , the outer ends of the first connecting block 12 and the second connecting block 13 are fixedly equipped with a lifting ring 14 , and the connecting rope is tied and fixed to the lifting ring 14 .

[0087] In some embodiments, in order to further clean the inner wall of the oil production pipeline after the scale is scraped off, the hard bristles of the cleaning ring 5 are used to remove the structural powder and residues on the inner wall of the oil production pipeline, and further improve the cleanliness of the cleaning, the outer wall of the columnar rod 1 is detachably fixedly equipped with a cleaning ring 5, and the cleaning ring 5 is located between the scale scraping structure 3 on the inner wall of the pipeline and the sliding guide 4 on the moving end of the columnar rod 1;

[0088] The outer wall of the cleaning ring 5 is evenly provided with hard bristles, and the outer wall of the hard bristles fits the inner wall of the oil production pipeline; the cleaning ring 5 includes a mounting ring, the inner ring surface of which is fixed with a connecting flange, and the connecting flange is fixed to the outer wall of the columnar rod 1 by bolts to achieve a detachable fixed connection, and the hard bristles are disassembled and replaced when they are severely worn.

[0089] In the present embodiment, the pipeline inner wall vibration and percussion structure 2, the pipeline inner wall scale scraping structure 3, the sliding guide 4 and the cleaning ring 5 are all detachable, and their sizes match the inner diameter size of the applicable oil production pipeline. When it is necessary to clean oil production pipelines of other sizes, the pipeline inner wall vibration and percussion structure 2, the pipeline inner wall scale scraping structure 3, the sliding guide 4 and the cleaning ring 5 are disassembled and replaced so that their sizes match the inner diameter of the oil production pipeline to be cleaned. It is suitable for cleaning oil production pipelines whose inner diameter is larger than the outer diameter of the columnar rod 1.

[0090] Working principle:

[0091] The two ends of the columnar rod 1 are tied with fixed ropes to pull and move inside the oil production pipeline, ensuring that the direction of the pipeline inner wall vibration and knocking structure 2 is the forward direction of the device. Before use, the power supply structure 6 is turned on to power the pipeline inner wall vibration and knocking structure 2, and the pulling device is slowly and uniformly moved in the oil production pipeline. During the movement of the device, the scale on the inner wall of the oil production pipeline is first vibrated and knocked to loosen it through the pipeline inner wall vibration and knocking structure 2, and then the loosened scale is directly scraped off through the pipeline inner wall scale scraping structure 3;

[0092] During the movement of the device, it is guided by the sliding guide members 4 at both ends to ensure that the main body of the device is located at the axial center of the inner cavity of the oil production pipeline, thereby avoiding wear of the inner wall of the pipeline during the process of scraping scale on the inner wall of the pipeline, and ensuring the normal knocking, vibration and scraping process of the scale on the inner wall of the oil production pipeline. The above operation improves the cleaning efficiency of the scale on the inner wall of the oil production pipeline and avoids scale residue.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A descaling device, characterized in that: include: A columnar rod (1) having a power supply structure (6) installed inside; The outer wall of the columnar rod (1) is detachably equipped with a pipeline inner wall vibration knocking structure (2) and a pipeline inner wall scale scraping structure (3) in sequence from the moving front end to the middle part; The power supply structure (6) is electrically connected to the pipeline inner wall vibration knocking structure (2); Both ends of the outer wall of the columnar rod (1) are detachably equipped with sliding guides (4), and the outer wall of the sliding guide (4) is slidably fitted with the inner wall of the oil production pipeline.

2. The descaling device according to claim 1, characterized in that: The pipeline inner wall vibration and knocking structure (2) comprises: There are four arc-shaped mounting plates (21) distributed around the circumference; A vibration motor (22) is vertically fixedly mounted on the outer side surface of the arc-shaped mounting plate (21); An arc-shaped knocking plate (23) is fixedly mounted on the end of the vibration motor (22), and the arc-shaped knocking plate (23) has the same curvature as the inner wall of the oil production pipeline.

3. The descaling device according to claim 2, characterized in that: The outer side surface of the arc-shaped knocking plate (23) is uniformly and integrally formed with a strip-shaped protrusion (24) in the transverse direction along the length direction.

4. The descaling device according to claim 1, characterized in that: The pipe inner wall scale scraping structure (3) comprises: A first scraper ring (31) and a second scraper ring (32) are sequentially sleeved on the outer wall of the columnar rod (1) from the front end to the middle part; A first connecting ring (33) is coaxially fixedly mounted on the inner annular edges of the first scraping ring (31) and the second scraping ring (32), and the first connecting ring (33) is sleeved on the outer wall of the columnar rod (1); The front and rear side walls of the first connecting ring (33) are both screwed with first fixing bolts (34), and the ends of the first fixing bolts (34) are screwed on the outer wall of the columnar rod (1); A gap is left between the outer ring surface of the first scraper ring (31) and the inner wall of the oil production pipeline; The outer ring surface of the second scraper ring (32) is slidably fitted to the inner wall of the oil production pipeline.

5. The descaling device according to claim 4, characterized in that: The first scraper ring (31) and the second scraper ring (32) are in the shape of a conical bucket, and the opening ends of the first scraper ring (31) and the second scraper ring (32) face the moving end of the columnar rod (1).

6. The descaling device according to claim 1, characterized in that: The power supply structure (6) comprises: A cavity (61) is provided in the middle of the moving end of the columnar rod (1); A rechargeable battery (62) is inserted into the cavity (61); The outer wall of the columnar rod (1) is provided with a mounting groove (63) corresponding to the vibration knocking structure (2) on the inner wall of the pipeline; The inner end of the pipeline inner wall vibration knocking structure (2) is glued and fixed in the corresponding installation groove (63); The pipeline inner wall vibration and knocking structure (2) is connected in parallel and electrically connected to the rechargeable battery (62).

7. The descaling device according to claim 1, characterized in that: The sliding guide member (4) comprises: A guide ring (41) having an inner ring surface edge coaxially fixedly assembled with a second connecting ring (42); The guide ring (41) and the second connecting ring (42) are sleeved on the outer wall of the columnar rod (1); The front and rear side walls of the second connecting ring (42) are both screwed with second fixing bolts (43), and the ends of the second fixing bolts (43) are screwed on the outer wall of the columnar rod (1); The outer wall of the guide ring (41) is evenly and movably engaged with a ball (44), and the outer end of the ball (44) is rollingly fitted with the inner wall of the oil production pipeline.

8. The descaling device according to claim 6, characterized in that: The columnar rod (1) comprises: A round rod (11), wherein the cavity (61) is opened in the middle of the moving end of the round rod (11); The movable end of the round rod (11) is fixedly equipped with a first connecting block (12); A second connecting block (13) is threadedly connected in the cavity (61).

9. The descaling device according to claim 8, characterized in that: The outer ends of the first connecting block (12) and the second connecting block (13) are fixedly equipped with lifting rings (14).

10. The descaling device according to claim 1, characterized in that: The outer wall of the columnar rod (1) is detachably fixedly equipped with a cleaning ring (5), and the cleaning ring (5) is located between the scale scraping structure (3) on the inner wall of the pipeline and the sliding guide (4) on the moving end of the columnar rod (1); The outer wall of the cleaning ring (5) is evenly provided with hard bristles, and the outer wall of the hard bristles fits the inner wall of the oil production pipeline.

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