Petroleum pipeline cleaner

Abstract

The utility model discloses a petroleum pipeline cleaner which comprises a cylinder body, a scraper, a scraper blade, a steel brush, a leather cup, a fixing rod, a rotating shaft, a rotating blade, a blowing ring, a nut and a handle. A scraper is arranged to clean stubborn impurities, especially scales, tightly attached to the inner wall of the petroleum pipeline; a scraper, a scraper plate, a steel brush and a leather cup are arranged to sequentially scrape and brush the inner wall of the petroleum pipeline in the central axis direction and the circumferential direction of the cylinder; rotating blades are arranged to provide rotating power for the pipe cleaner; an air blowing ring is arranged to blow away impurities on the inner wall of the petroleum pipeline, and the cleaning process is prevented from being affected by impurity accumulation. The pipeline cleaning device solves the problem that stubborn impurities, especially scales, tightly attached to the inner wall of a pipeline cannot be completely and thoroughly cleaned, achieves multi-layer complete, sufficient and thorough cleaning, and is simple in structure, easy to operate and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning technology, specifically to an oil pipeline cleaning tool. Background Technology

[0002] During the transportation of oil and gas through pipelines, there are many impurities, including organic matter, carbon dioxide, hydrogen sulfide, and bacteria. Long-term use leads to the accumulation of impurities and even scale inside the pipeline, which are difficult to remove. If the inside of the pipeline is not cleaned regularly, the pipeline will not be able to operate normally, which may cause major safety accidents such as energy outages. At the same time, the long-term accumulation of impurities will also cause more severe corrosion of the inner wall of the pipeline, reduce the service life of the pipeline, and even cause pipeline damage, resulting in serious economic losses.

[0003] For example, Chinese invention patent CN114951168B, published on January 19, 2024, discloses an oil pipeline cleaning device. The invention aims to provide an oil pipeline cleaning device that is efficient, multi-layered, structurally clear, cost-effective, easy to disassemble and assemble for long-term use, and highly automated for convenient operation. It includes a front body and a rear body, both of which are cavity structures. One end of the front and rear bodies are movably connected. A bushing is fitted onto the rear body, and several steel brushes are connected to the bushing. A cup is connected to the other end of the rear body. Several scrapers are fitted onto the front body, with partitions between adjacent scrapers. The partitions are fitted onto the front body, and a handle is connected to the other end of the front body. The beneficial effects of this invention are: layered cleaning, thorough and efficient cleaning, simple structure, fast cleaning, reduced costs, high degree of automation, improved practicality, stable structure, smooth operation, easy disassembly, cleaning and maintenance, and convenient handling and carrying, thus saving costs and extending service life.

[0004] As can be seen from the above patents, although the oil pipeline cleaning tool uses scrapers and steel brushes to clean the inner wall of the pipeline, it cannot completely remove stubborn impurities, especially scale, that are tightly attached to the inner wall of the pipeline; therefore, the oil pipeline cleaning tool needs to be redesigned to improve it. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an oil pipeline cleaning tool.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An oil pipeline cleaning tool includes a hollow cylinder. Several scrapers, scraper blades, steel brushes, and rubber cups are sequentially fitted onto the outer wall of the cylinder from left to right. The scrapers are spirally arranged along the circumference of the outer wall of the cylinder, with their diameters increasing spirally from left to right. The diameters of the scrapers gradually increase from left to right. The diameters of the scrapers and scraper blades increase to the inner diameter of the oil pipeline. The diameters of the steel brushes and rubber cups are equal to the inner diameter of the oil pipeline. The flange faces of the bushings of the scrapers, scraper blades, steel brushes, and rubber cups are connected by nuts.

[0008] Preferably, a fixing rod is provided at the center of the bottom right end of the cylinder, the fixing rod is connected to the outer wall of the bottom of the cylinder, and a rotating shaft is provided at the center of the fixing rod. The rotating shaft extends from the center of the fixing rod to the center of the top left end of the cylinder, and the two ends of the rotating shaft are respectively rotatably connected to the fixing rod and the center of the top of the cylinder.

[0009] Preferably, a plurality of rotating blades are arranged on the rotating shaft to the left along the center of the fixed rod. The rotating blades have a multi-layer structure, with each layer of rotating blades centered on the center of the rotating shaft. Adjacent rotating blades are evenly and symmetrically distributed at equal angles. The radial inner end of each rotating blade is integrally formed into a circular sleeve that engages with the rotating shaft.

[0010] Preferably, an air blowing ring is provided at the top edge of the left end of the cylinder, and the air outlet of the air blowing ring is set at a 45º angle with the horizontal direction.

[0011] Preferably, a handle is provided at the center of the top left end of the cylinder, and the handle has a U-shaped structure.

[0012] The beneficial effects of this utility model are:

[0013] The system is equipped with scrapers to remove stubborn impurities, especially scale, that adhere tightly to the inner wall of the oil pipeline; scrapers, scrapers, steel brushes, and rubber cups are used to scrape the inner wall of the oil pipeline in the direction of the central axis and the circumference, achieving a multi-layered, complete, and thorough cleaning; rotating blades provide rotational power for the pig; and air rings are used to blow away impurities on the inner wall of the oil pipeline, preventing the accumulation of impurities from affecting the cleaning process. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0016] Figure 1 This is a schematic diagram of the structure of an oil pipeline cleaning device proposed in this utility model;

[0017] Figure 1 The following components are shown: 1. Cylinder, 2. Scraper, 3. Scraper blade, 4. Steel brush, 5. Leather cup, 6. Fixing rod, 7. Rotating shaft, 8. Rotating blade, 9. Air blowing ring, 10. Nut, 11. Handle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] It should be noted that similar labels and letters are likely to represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Reference Figure 1 The present invention discloses an oil pipeline cleaning tool, comprising a cylinder 1, a scraper 2, a scraper blade 3, a steel brush 4, a leather cup 5, a fixed rod 6, a rotating shaft 7, a rotating blade 8, an air blowing ring 9, a nut 10, and a handle 11.

[0025] The cylinder 1 is a hollow cylinder and serves as the base of the pipeline cleaning device. Several scrapers 2, scraper blades 3, steel brushes 4, and rubber cups 5 are sequentially fitted onto the outer wall of the cylinder 1 from left to right. The scrapers 2 are used to clean stubborn impurities, especially scale, that adhere tightly to the inner wall of the oil pipeline. The scrapers 2 are spirally arranged along the circumference of the outer wall of the cylinder 1, with their diameter increasing spirally from left to right along the outer wall until reaching the inner diameter of the oil pipeline. This allows for layer-by-layer scraping of the surface of stubborn impurities or scale until they are completely removed. The scraper 3 and steel brush 4, as supplements to the scraper 2, continue to scrape and brush impurities on the inner wall of the oil pipeline. The diameter of the scraper 3 gradually increases from left to right until it reaches the inner diameter of the oil pipeline, and the diameter of the steel brush 4 is equal to the inner diameter of the oil pipeline, so that the increased scraper 3 and steel brush 4 can fit against the inner wall of the oil pipeline for a complete, thorough cleaning. The leather cup 5, with the same inner diameter as the oil pipeline, is used to perform the final cleaning of the impurities and remove them from the oil pipeline. The flange faces of the bushings of the scraper 2, scraper 3, steel brush 4, and leather cup 5 are connected by nuts 10, achieving a detachable design while being fixed.

[0026] The fixing rod 6 is located at and passes through the center of the bottom right end of the cylinder 1. The fixing rod 6 is connected to the outer wall of the bottom of the cylinder 1 and is used to fix the rotating shaft 7. The rotating shaft 7 is rotatably connected to the center of the fixing rod 6 and extends to the left to the center of the top left end of the cylinder 1 for rotational connection. Several rotating blades 8 are provided on the rotating shaft 7. The rotating blades 8 are used to provide rotational power for the pig. The multi-layer rotating blades 8 are arranged with the center of the rotating shaft 7 as the center. Each layer of rotating blades 8 is evenly and symmetrically distributed with adjacent blades at equal angles. The radial inner end of the rotating blade 8 is integrally formed into a circular sleeve and is engaged with the rotating shaft 7 to ensure the symmetry and balance of the structure.

[0027] In an optional embodiment, an air-blowing ring 9 is provided at the top edge of the left end of the cylinder 1. The air outlet of the air-blowing ring 9 is set at a 45º angle with the horizontal direction, which is used to blow the impurities on the inner wall of the oil pipeline to the left before the scraper 2 cleans the stubborn impurities, so as to avoid the accumulation of impurities affecting the cleaning process.

[0028] In an optional embodiment, a handle 11 is provided at the top center of the left end of the cylinder 1. The handle 11 has a U-shaped structure, which facilitates pulling the pig out of the inner wall of the oil pipeline after cleaning is completed.

[0029] The usage process of this application is as follows:

[0030] The pipeline cleaning tool of this application is placed into the pipeline to be cleaned, with the left end of the cylinder 1 facing the outlet end of the pipeline and the right end of the cylinder 1 facing the inlet end of the pipeline, so that the outer surfaces of the steel brush 4 and the cup 5 are tightly fitted to the inner wall of the pipeline. High-pressure gas is injected into the inlet end of the pipeline using a high-pressure gas filling device. The high-pressure gas pushes the cleaning tool to the left, and at the same time, the high-pressure gas blows onto the rotating blade 8, which drives the rotating blade 8 to rotate, which in turn drives the rotating shaft 7 to rotate. The rotating shaft 7 drives the cylinder 1 to rotate, which in turn drives the scraper 2, scraper 3, steel brush 4 and cup 5 to rotate. As the scraper 2, scraper 3, steel brush 4 and cup 5 move to the left, they also rotate. The scraper 2, scraper 3, steel brush 4 and cup 5 scrape the inner wall of the pipeline not only in the direction of the central axis of the cylinder 1, but also in the circumferential direction of the cylinder 1, so as to completely and thoroughly clean the inner wall of the pipeline. High-pressure gas is blown out from the outlet of the air ring 9. The high-pressure gas, blowing at a 45º angle to the horizontal, blows the impurities on the inner wall of the oil pipeline to the left before the scraper 2 removes stubborn impurities, preventing their accumulation from affecting the cleaning process. The rubber cup 5 performs the final cleaning of the remaining impurities and removes them from the oil pipeline. When the pig reaches the outlet end of the oil pipeline, it can be pulled out using the handle 11, completing the oil pipeline cleaning work.

[0031] Of course, the embodiments described in this specific implementation are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An oil pipeline pigging device, comprising a cylindrical body (1), wherein the cylindrical body (1) is a hollow cylindrical body, characterized in that: Several scrapers (2), scraper blades (3), steel brushes (4), and leather cups (5) are sequentially fitted on the outer wall of the cylinder (1) from left to right. The scrapers (2) are spirally arranged along the circumference of the outer wall of the cylinder (1) and their diameter increases spirally along the outer wall from left to right. The diameter of the scraper blades (3) gradually increases from left to right. The diameters of the scrapers (2) and scraper blades (3) increase to the inner diameter of the oil pipeline. The diameters of the steel brushes (4) and leather cups (5) are equal to the inner diameter of the oil pipeline. The flange faces of the bushings of the scrapers (2), scraper blades (3), steel brushes (4), and leather cups (5) are connected by nuts (10).

2. The oil pipeline pigging tool according to claim 1, characterized in that: A fixing rod (6) is provided at the bottom center of the right end of the cylinder (1). The fixing rod (6) is connected to the bottom outer wall of the cylinder (1). A rotating shaft (7) is provided at the center of the fixing rod (6). The rotating shaft (7) extends from the center of the fixing rod (6) to the top center of the left end of the cylinder (1). The two ends of the rotating shaft (7) are respectively rotatably connected to the fixing rod (6) and the top center of the cylinder (1).

3. The oil pipeline pigging tool according to claim 2, characterized in that: Several rotating blades (8) are arranged on the rotating shaft (7) to the left along the center of the fixed rod (6). The rotating blades (8) have a multi-layer structure. Each layer of rotating blades (8) is centered on the center of the rotating shaft (7). Adjacent rotating blades (8) are evenly and symmetrically distributed at equal angles. The radial inner end of the rotating blades (8) is integrally formed into a circular sleeve and is engaged with the rotating shaft (7).

4. The oil pipeline pigging tool according to claim 1, characterized in that: An air blowing ring (9) is provided on the top edge of the left end of the cylinder (1), and the air outlet of the air blowing ring (9) is set at a 45º angle with the horizontal direction.

5. The oil pipeline pigging tool according to claim 1, characterized in that: A handle (11) is provided at the center of the top left end of the cylinder (1), and the handle (11) has a U-shaped structure.

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