Rapid dredging system for petroleum pipeline

The rapid oil pipeline dredging system uses a drive motor and gear transmission to power a scraper on a threaded rod to clean the inner wall of the oil pipeline. This solves the problems of low efficiency, high cost, and safety risks associated with traditional cleaning methods, achieving efficient and safe pipeline dredging.

CN224128148UActive Publication Date: 2026-04-17TIANJIN DAFANHUA PETROLEUM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN DAFANHUA PETROLEUM TECH CO LTD
Filing Date
2025-04-30
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing methods for cleaning oil pipelines are labor-intensive, inefficient, and pose high safety risks. They are also ineffective at removing stubborn deposits, and traditional equipment is costly and complex to operate.

Method used

A rapid dredging system for oil pipelines was designed. It utilizes a drive motor, gear transmission, and threaded rod to drive a scraper, combined with an electric heating wire, to achieve efficient cleaning of the inner wall of the oil pipeline. Through the cooperation of the threaded rod and the scraper, the scraper adheres tightly to the inner wall under the elastic action of the spring plate, and the stable transmission of the threaded rod ensures the cleaning effect.

Benefits of technology

It improves the efficiency of oil pipeline dredging, reduces costs and difficulty, ensures operational safety and reliability, and enhances system stability and service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of petroleum pipeline dredging, and discloses a petroleum pipeline rapid dredging system which comprises a shell, a mounting cavity is formed in the lower portion of the middle of the shell, a mounting base is fixedly mounted on the inner wall of the bottom in the mounting cavity, and a driving motor is fixedly mounted on the surface of the top of the mounting base. A cavity is formed in the left side of the interior of the shell. According to the petroleum pipeline dredging device, a driving motor, a threaded rod, a mounting plate, a scraper and the like are arranged, the scraper can be tightly attached to the inner wall of a petroleum pipeline body under the elastic action of a V-shaped spring piece, impurities on the inner wall of the pipeline can be comprehensively cleaned through the scraper along with movement of the threaded rod, and the petroleum pipeline dredging efficiency is greatly improved; and the rotating stability of the second gear is guaranteed, so that the movement of the threaded rod is more stable and smooth, dredging faults caused by an unstable structure are reduced, the reliability of the system is improved, the service life of the system is prolonged, and the dredging cost and difficulty of the petroleum pipeline are reduced.
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Description

Technical Field

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

[0002] In the petroleum industry, oil pipelines, as key infrastructure for oil transportation, play a vital role in transporting oil from extraction sites to processing or storage sites. However, with long-term operation, various impurities inevitably accumulate inside oil pipelines, such as silt, waxy deposits, and corrosion products. These impurities gradually accumulate on the inner wall of the pipeline, causing the inner diameter to decrease or even completely blockage it, seriously affecting the normal transportation efficiency of oil, increasing transportation costs, and potentially causing safety accidents. Traditional oil pipeline dredging methods, such as manual cleaning and high-pressure water jet cleaning, have many drawbacks. Manual cleaning is not only labor-intensive and inefficient, but also poses significant safety risks in some special environments, such as high-temperature, high-pressure, or toxic and harmful pipelines. While high-pressure water jet cleaning can remove impurities to some extent, it is not effective for some stubborn deposits, and the equipment is expensive and the operation is complex. Therefore, we propose a rapid oil pipeline dredging system to solve the above-mentioned problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a rapid oil pipeline dredging system to solve the problems mentioned in the background.

[0004] This utility model provides the following technical solution: a rapid oil pipeline unblocking system, comprising a housing, an installation cavity in the lower middle part of the housing, and an installation seat fixedly installed on the bottom inner wall of the installation cavity. A drive motor is fixedly installed on the top surface of the installation seat. A cavity is opened on the left side inside the housing. The output end of the drive motor passes through and extends into the cavity opened on the left side inside the housing. A first gear is installed at one end of the output end of the drive motor located in the cavity opened on the left side inside the housing. A second gear is rotatably connected in the cavity opened on the left side inside the housing. A through hole is opened in the center of the second gear, and a threaded rod is provided in the through hole. Multiple installation plates are evenly fixedly installed on one end of the threaded rod. Multiple hinge blocks are evenly hinged on the outer ring of the installation plate. A scraper is fixedly installed on one side of the hinge block. An installation tube is welded to one side of the installation plate. A V-shaped spring plate is installed on the side of the installation tube that is close to the scraper.

[0005] As a preferred embodiment of this utility model, a threaded groove is provided at the center of the second gear, and the threaded groove on the second gear matches the outer thread of the threaded rod.

[0006] As a preferred embodiment of this utility model, the scraper is provided with an electric heating wire inside, and a power line is provided at the center of the threaded rod, which can supply power to the electric heating wire. The threaded rod passes through the mounting tube and is fixedly connected to the mounting tube.

[0007] As a preferred embodiment of this utility model, the first gear and the second gear mesh with each other, and heavy-duty industrial casters with brakes are installed at the bottom of the housing and near the four corners.

[0008] As a preferred technical solution of this utility model, the upper two inner walls of the cavity on the left side of the housing are provided with annular sliding grooves, and a matching rotating sliding ring is placed in the annular sliding groove. The two rotating sliding rings are fixedly connected to the two side walls of the second gear on their respective sides.

[0009] As a preferred technical solution of this utility model, the mounting plate installed at one end of the threaded rod is placed inside the oil pipeline body, and the scraper can be tightly attached to the inner wall of the oil pipeline body under the elasticity of the V-shaped spring sheet.

[0010] As a preferred technical solution of this utility model, limit grooves are provided on both sides of the threaded rod, and a limit block matching the limit grooves on both sides of the threaded rod is fixedly installed inside the housing. A conical tip is provided at one end of the threaded rod near the mounting plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This rapid oil pipeline unblocking system comprises a drive motor, a threaded rod, mounting plates, and scrapers. The drive motor is housed within the casing, with a first gear mounted at its output end, meshing with a second gear via a rotatable connection. This gear transmission enables efficient power transfer. The outer ring of the threaded rod features a spiral pattern that matches a spiral groove in the central through-hole of the second gear. When the second gear rotates, it drives the threaded rod to move smoothly. Multiple mounting plates are evenly fixed to one end of the threaded rod, and scrapers are mounted on the mounting plates via hinge blocks. Under the elastic action of a V-shaped spring, the scrapers adhere tightly to the inner wall of the oil pipeline. As the threaded rod moves, the scrapers thoroughly clean impurities from the pipeline's inner wall. Furthermore, the scrapers are equipped with electric heating wires, significantly improving the unblocking efficiency of the oil pipeline.

[0013] 2. This rapid oil pipeline unblocking system, through the setting of rotating slip rings and second gears, has annular sliding grooves opened on the inner walls of both sides of the upper part of the cavity on the left side of the housing, and a matching rotating slip ring is placed therein. The rotating slip rings are fixedly connected to the side walls of the second gear, ensuring the stability of the rotation of the second gear, thereby making the movement of the threaded rod more stable and smooth, reducing unblocking failures caused by structural instability, improving the reliability and service life of the system, and reducing the cost and difficulty of oil pipeline unblocking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the working structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the shell structure of this utility model;

[0017] Figure 4 This is a partial structural diagram of the present invention.

[0018] In the diagram: 1. Shell; 2. Threaded rod; 3. Oil pipeline body; 4. Heavy-duty industrial directional caster with brake; 5. Mounting plate; 6. Scraper; 7. Drive motor; 8. Mounting base; 9. First gear; 10. Second gear; 11. Rotary slip ring; 12. Mounting pipe; 13. Power cord; 14. V-shaped spring sheet; 15. Hinge block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A rapid oil pipeline unblocking system comprises a housing 1, a drive motor 7, a mounting base 8, a first gear 9, a second gear 10, a threaded rod 2, a mounting plate 5, a scraper 6, a V-shaped spring plate 14, and heavy-duty industrial directional casters 4 with brakes. The housing 1 has a mounting cavity in its lower middle section. The mounting base 8 is fixedly mounted on the inner wall of the bottom of the mounting cavity, and the drive motor 7 is fixedly mounted on the top surface of the mounting base 8. A cavity is formed on the left side inside the housing 1. The output end of the drive motor 7 passes through and extends into this cavity, and the first gear 9 is mounted at one end of the cavity. The second gear 10 is rotatably connected to the left side cavity inside the housing 1 and meshes with the first gear 9. A through hole is formed in the center of the second gear 10, and a threaded rod 2 is installed inside the through hole. The outer ring of the threaded rod 2 has a spiral pattern. A matching spiral groove is opened on the inner ring of the central through hole. Through the cooperation of the spiral groove and the spiral thread, the second gear 10 can drive the threaded rod 2 to move when it rotates. Multiple mounting plates 5 are evenly fixed on one end of the threaded rod 2. A scraper 6 is installed on the mounting plate 5 through the hinge block 15. Under the elastic action of the V-shaped spring plate 14, the scraper 6 can be tightly attached to the inner wall of the oil pipeline body 3. In the initial state, the scraper 6 is larger than the inner diameter of the oil pipeline body 3. At the same time, the scraper 6 is also equipped with an electric heating wire that is powered by the power cord 13. This allows the scraper 6 to heat the dirt and other substances inside the oil pipeline body 3 while cleaning the inner wall of the oil pipeline body 3, which facilitates cleaning and greatly improves the efficiency of cleaning the inner wall of the oil pipeline body 3.

[0021] In practical use, the unblocking system is moved to the location of the oil pipeline that needs unblocking, and fixed using the braking structure on the heavy-duty industrial casters 4 with brakes. The mounting plate 5 and scraper 6, installed at one end of the threaded rod 2, are placed into the oil pipeline body 3. The end of the threaded rod 2 that enters the oil pipeline body 3 has a conical tip, which facilitates its entry into the interior of the oil pipeline body 3. The drive motor 7 is started, driving the first gear 9 to rotate. The first gear 9 meshes with the second gear 10, causing the second gear 10 to rotate. A limiting block, located inside the housing 1, matches the limiting groove on the threaded rod 2. The threaded rod 2 moves through the interaction of the spiral threads and the spiral groove, moving the mounting plate 5 and scraper 6 within the oil pipeline body 3 until it reaches the target position. After placement, the reverse drive motor 7 can be reversed, and the scraper 6 can be pulled out through the threaded rod 2. At this time, the scraper 6 can be closely attached to the inner wall of the oil pipeline body 3 under the action of the V-shaped spring plate 14 to clean the impurities on the inner wall of the pipeline, thereby achieving the purpose of quickly unblocking the oil pipeline. At the same time, an electric heating wire is provided in the scraper 6, which provides power through the power cord 13. This allows the scraper 6 to clean the inner wall of the oil pipeline body 3 while also heating the dirt and other substances inside the oil pipeline body 3, making it easier to clean and greatly improving the efficiency of cleaning the inner wall of the oil pipeline body 3. In addition, a rotating slip ring 11 is placed in the annular sliding groove on both sides of the upper part of the cavity on the left side of the housing 1. The rotating slip ring 11 is fixedly connected to the side walls on both sides of the second gear 10, which can ensure the stability of the rotation of the second gear 10 and improve the unblocking effect.

[0022] Example 2: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 Based on Embodiment 1, this embodiment optimizes the system's mobility. The heavy-duty industrial casters 4 with brakes installed at the bottom of the housing 1 near the four corners are made of high-strength, wear-resistant rubber. The heavy-duty industrial casters 4 with brakes are flexible in their steering and can easily move the dredging system on different terrains. After the system is moved to the side of the oil pipeline, the braking structure on the heavy-duty industrial casters 4 with brakes can quickly and stably fix the system, preventing the system from moving during the dredging process and affecting the accuracy and safety of the dredging operation.

[0023] During the unblocking process, the drive motor 7 runs continuously, driving the mounting plate 5 and scraper 6 on the threaded rod 2 to move within the oil pipeline body 3 through the transmission of the first gear 9 and the second gear 10. Because the spiral pattern of the outer ring of the threaded rod 2 is tightly engaged with the spiral groove of the inner ring of the through hole in the center of the second gear 10, the threaded rod 2 can move smoothly and steadily. When the scraper 6 is pulled outward by the cylinder, the scraper 6 can adhere tightly to the inner wall of the oil pipeline body 3 under the action of the V-shaped spring plate 14, which can more thoroughly clean the impurities on the inner wall of the oil pipeline. If necessary, several mounting plates 5 can be installed, and the scraper 6 installed on the mounting plate 5 through the hinge block 15 can be installed in a staggered manner with the scraper 6 installed in the front and rear positions, which can achieve the purpose of thoroughly cleaning the dirt on the inner wall of the oil pipeline body 3. Moreover, the rotation of the rotating slip ring 11 in the annular groove further ensures the stability of the rotation of the second gear 10, reduces the problem of unstable movement of the threaded rod 2 caused by gear shaking, and improves the unblocking efficiency and quality.

[0024] Implementation Results: This rapid oil pipeline dredging system has the beneficial effect of efficient dredging. By installing a drive motor 7 inside the housing 1, a first gear 9 is installed at its output end and meshes with a second gear 10, which is rotatably connected to it. The gear transmission realizes the effective transmission of power. The outer ring of the threaded rod 2 is provided with a spiral pattern, which matches the spiral groove opened in the through hole in the center of the second gear 10. When the second gear 10 rotates, it can drive the threaded rod 2 to move smoothly. Multiple mounting plates 5 are evenly fixed at one end of the threaded rod 2. The mounting plates 5 are equipped with scrapers 6 through hinge blocks 15. Under the elastic action of the V-shaped spring plate 14, the scraper 6 can be tightly attached to the inner wall of the oil pipeline body 3. As the threaded rod 2 pulls the scraper 6, the scraper 6 can thoroughly clean the impurities on the inner wall of the pipeline, which greatly improves the dredging efficiency of the oil pipeline.

[0025] The system also features convenient operation and stable structure. Heavy-duty industrial casters 4 with brakes are installed at the bottom of the housing 1 near the four corners, which facilitates the flexible movement of the system between oil pipelines in different locations. After reaching the designated position, the system can be fixed by the brake structure, making the unblocking operation stable. At the same time, annular grooves are opened on the inner walls of the upper two sides of the cavity on the left side of the housing 1 to place matching rotating slip rings 11. The rotating slip rings 11 are fixedly connected to the side walls of the second gear 10, ensuring the stability of the rotation of the second gear 10. This makes the movement of the threaded rod 2 more stable and smooth, reducing unblocking failures caused by structural instability, improving the reliability and service life of the system, and reducing the cost and difficulty of oil pipeline unblocking.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid clearing system for oil pipelines comprising a housing (1), characterised in that: A mounting cavity is provided in the lower middle part of the housing (1), and a mounting base (8) is fixedly installed on the bottom inner wall of the mounting cavity. A drive motor (7) is fixedly installed on the top surface of the mounting base (8). A cavity is provided on the left side of the interior of the housing (1). The output end of the drive motor (7) extends through and into the cavity on the left side of the interior of the housing (1). A first gear (9) is installed at the end of the drive motor (7) located in the cavity on the left side of the interior of the housing (1). A second gear (10) is rotatably connected inside the cavity. A through hole is opened in the center of the second gear (10), and a threaded rod (2) is provided in the through hole. Multiple mounting plates (5) are evenly fixedly installed on one end of the threaded rod (2). Multiple hinge blocks (15) are evenly hinged on the outer ring of the mounting plate (5). A scraper (6) is fixedly installed on one side of the hinge block (15). An installation tube (12) is welded to one side of the mounting plate (5). A V-shaped spring plate (14) is installed on the side of the installation tube (12) that is close to the scraper (6).

2. A petroleum pipeline rapid unblocking system according to claim 1, characterized in that: The second gear (10) has a threaded groove at its center, and the threaded groove on the second gear (10) matches the outer thread of the threaded rod (2).

3. A petroleum pipeline rapid unblocking system according to claim 1, characterized in that: The scraper (6) is equipped with an electric heating wire inside, and the threaded rod (2) is equipped with a power line (13) at the center, which can supply power to the electric heating wire. The threaded rod (2) passes through the mounting tube (12) and is fixedly connected to the mounting tube (12).

4. A petroleum pipeline rapid unblocking system according to claim 1, characterized in that: The first gear (9) and the second gear (10) mesh with each other, and heavy-duty industrial casters (4) with brakes are installed at the bottom of the housing (1) and near the four corners.

5. A petroleum pipeline rapid unblocking system according to claim 1, characterized in that: The upper two inner walls of the cavity on the left side of the housing (1) are provided with annular grooves, and a matching rotating slip ring (11) is placed in the annular groove. The two rotating slip rings (11) are fixedly connected to the two side walls of the second gear (10) on the side that are close to each other.

6. A petroleum pipeline rapid unblocking system according to claim 1, characterized in that: The mounting plate (5) installed at one end of the threaded rod (2) is placed inside the oil pipeline body (3), and the scraper (6) can be tightly attached to the inner wall of the oil pipeline body (3) under the elasticity of the V-shaped spring plate (14).

7. A petroleum pipeline rapid unblocking system according to claim 1, characterized in that: Limiting grooves are provided on both sides of the threaded rod (2). A limiting block matching the limiting grooves on both sides of the threaded rod (2) is fixedly installed inside the housing (1). A conical tip is provided at one end of the threaded rod (2) near the mounting plate (5).