An integrated device for petroleum pipeline wax removal and corrosion prevention treatment

Abstract

The utility model discloses a petroleum pipeline wax removal and anticorrosion treatment integrated device relates to petroleum pipeline maintenance equipment technical field, including bottom platform, and the bottom platform left side is provided with the push hand, the bottom platform right side fixed mounting has the first support board, and the first support board right side top fixedly connected with second support board, the bottom platform top is installed with anticorrosive coating tank, and anticorrosive coating tank inside is provided with a plurality of stirring rod, and anticorrosive coating tank right side connection installation has the discharge pipe, second support board bottom fixed mounting has the threaded rod, and the threaded rod outside is connected with the rotating box with screw thread, the rotating box inside fills with anticorrosive coating, and the rotating box outside fixed mounting has the wax scraper, and the rotating box outside is installed with a plurality of sprays through solenoid valve, this petroleum pipeline wax removal and anticorrosion treatment integrated device solves the problem that traditional wax removal and anticorrosion process is split, and the long cycle problem, and the operation cycle is shortened, and the anticorrosion qualified rate is promoted, is applicable to petroleum pipeline maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of oil pipeline maintenance equipment, specifically an integrated device for oil pipeline dewaxing and corrosion prevention. Background Technology

[0002] Oil pipeline cleaning and corrosion protection are core processes for ensuring the safety of oil transportation systems. Cleaning targets oil, wax scale, and impurities inside the pipes, using mechanical scraping, high-pressure water jetting, or chemical scale removers to prevent blockages that could reduce oil delivery. Corrosion protection focuses on protecting the external pipe from rust. After rust removal, a three-layer PE anti-corrosion coating or epoxy powder coating is applied to form a physical barrier. Some pipelines also employ cathodic protection technology to inhibit electrochemical corrosion. The combination of these two methods can extend pipeline life and reduce the risk of leakage, especially in highly corrosive environments such as saline-alkali land and the seabed, where it is a key measure to maintain the stability of oil transportation. However, existing oil pipeline cleaning equipment still has certain problems in use: For example, the technical solution of the new oil pipeline cleaning device with application number 201822025836.3 is as follows: It includes a base, on which a hydraulic cylinder is mounted. An arc-shaped support rod is connected to the top of the piston rod of the hydraulic cylinder. A support column is connected to the left side of the base. A support plate is horizontally mounted at the top of the support column. A winch is fixed on the support plate. A steel wire rope is wound around the winch. The other end of the steel wire rope is connected to a housing. Multiple universal rollers are also provided at the bottom of the housing. A rotating motor and a battery are respectively installed inside the housing. The output shaft of the rotating motor is horizontally positioned to the right and extends to the outside of the housing. Simultaneously, water is supplied to the right end of the output shaft of the rotating motor. The pipe has a hinged shaft, on which are connected multiple telescopic rods perpendicular to the shaft. A brush is mounted at the other end of each telescopic rod, and a helical spring is fitted around the outside of the rod. However, in existing oil pipeline maintenance, the wax removal and corrosion prevention operations have long been separated. Current technology requires phased implementation: first, the internal wax removal is completed by mechanical scraping or chemical melting, and after separate acceptance, the pipeline is disassembled for external rust removal and anti-corrosion coating. This step-by-step approach extends the work cycle, and after wax removal, the pipeline is exposed to air, making the external wall prone to secondary oxidation and rusting, requiring secondary rust removal and increasing costs.

[0003] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.

[0004] To address the aforementioned issues, an innovative design was developed based on the existing oil pipeline cleaning device. Utility Model Content

[0005] The purpose of this utility model is to provide an integrated device for dewaxing and corrosion protection of oil pipelines, so as to solve the problem mentioned in the background art that the dewaxing and corrosion protection processes cannot be integrated into one operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An integrated device for dewaxing and anti-corrosion treatment of oil pipelines includes a base platform with four casters at the bottom and a push handle on the left side. A first support plate is fixedly installed on the right side of the base platform, and a second support plate is fixedly connected to the upper right side of the first support plate. An anti-corrosion coating tank is installed on the top of the base platform, and several stirring rods are installed inside the anti-corrosion coating tank. A discharge pipe is connected to the right side of the anti-corrosion coating tank. A threaded rod is fixedly installed at the bottom of the second support plate, and a rotating box is threadedly connected to the outside of the threaded rod. The rotating box is filled with anti-corrosion coating, and a wax scraper is fixedly installed on the outside of the rotating box. Several nozzles are installed on the outside of the rotating box through a solenoid valve.

[0007] Preferably, an inlet is provided on the left side of the top surface of the anti-corrosion coating tank, and a first motor is fixedly installed on the top surface of the anti-corrosion coating tank, and the output end of the first motor is connected to a stirring rod through a rotating rod.

[0008] Using the above technical solution, the first motor drives the stirring rod to stir the coating in the anti-corrosion coating tank, improving the mixing uniformity and reducing sedimentation and stratification compared to coating stored statically. This ensures that the coating concentration sprayed from the subsequent nozzles is consistent and avoids uneven thickness of the anti-corrosion coating.

[0009] Preferably, a second motor is fixedly installed on the upper surface of the second support plate, and a first tensioning wheel is connected to the lower output end of the second motor. A transmission belt is connected to the inner side of the first tensioning wheel, and a second tensioning wheel is connected to the right side of the transmission belt.

[0010] Using the above technical solution, the second motor drives the second tensioning wheel to rotate through the first tensioning wheel and the transmission belt, ensuring that the wax scraper and the nozzle work evenly along the pipeline.

[0011] Preferably, the bottom left and right sides of the second tensioning wheel are fixedly connected to the telescopic rod, and the bottom of the telescopic rod is fixedly connected to the upper surface of the rotating box.

[0012] Using the above technical solution, the telescopic rod at the bottom of the second tensioning wheel is connected to the rotating box, which can expand and contract with the pipe diameter, improving the adaptability compared to a fixed-length structure. At the same time, the telescopic rod provides support for the rotating box, improving rotational stability.

[0013] Preferably, the rotating box is threadedly connected to the outside of the threaded rod to form a rotating lifting structure.

[0014] Using the above technical solution, the rotating box and the threaded rod form a rotating lifting structure that can move along the pipeline axis. The rotation action achieves spiral wax removal and corrosion prevention, which improves the coverage compared to fixed-position operation and avoids local omissions in the pipeline.

[0015] Preferably, the top surface of the rotating box is provided with a material receiving port, and the material receiving port is filled with anti-corrosion coating through a connecting hose, and the hose is connected to the discharge pipe.

[0016] Using the above technical solution, the inlet is connected to the outlet pipe via a flexible hose, enabling the anti-corrosion coating to be transported from the anti-corrosion coating box to the transfer box.

[0017] Preferably, a plurality of brush rollers are mounted around the bottom outer side of the rotating box.

[0018] Using the above technical solution, the brush roller at the bottom of the rotating box rotates with the rotating box, which can clean the residual wax debris on the inner wall of the pipe after waxing, avoiding the wax debris from affecting the adhesion of the anti-corrosion coating. Compared with the anti-corrosion coating without a brush structure, the adhesion is improved and the anti-corrosion life is extended.

[0019] Compared with the prior art, the beneficial effects of this utility model are: the integrated device for dewaxing and corrosion prevention of oil pipelines, 1. Integrated wax removal and corrosion prevention, shortening the operation cycle: When the rotating box rotates, the wax scraper first removes the wax layer on the inner wall of the pipe, the brush roller sweeps away the residual wax debris, and then the spray head sprays the anti-corrosion coating simultaneously, solving the problem of the traditional "separate anti-corrosion after wax removal" process, shortening the operation cycle, and avoiding secondary oxidation and rusting of the pipe after wax removal. 2. Adaptive and stable operation, improving processing quality: The telescopic rod is adapted to different pipe diameters, and the threaded rod drives the rotating box to move up and down. Combined with the evenly mixed anti-corrosion coating, it ensures that the wax is scraped without any omissions and the anti-corrosion coating is uniform, which improves the anti-corrosion qualification rate compared with traditional equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall right-side bottom view of the present invention; Figure 3 This is a cross-sectional structural diagram of the anti-corrosion coating box of this utility model; Figure 4 This is a schematic diagram of the rotating box structure of this utility model; Figure 5 This is a schematic diagram of the rotating box structure in Embodiment 2 of this utility model.

[0021] In the diagram: 1. Base platform; 2. Casters; 3. Push handle; 4. First support plate; 5. Second support plate; 6. Anti-corrosion coating tank; 7. Inlet; 8. First motor; 9. Stirring rod; 10. Outlet pipe; 11. Hose; 12. Second motor; 13. First tensioning wheel; 14. Drive belt; 15. Second tensioning wheel; 16. Telescopic rod; 17. Rotary box; 18. Threaded rod; 19. Inlet; 20. Wax scraper; 21. Nozzle; 22. Brush roller. Detailed Implementation

[0022] 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.

[0023] Example 1 Please see Figure 1-4 This utility model provides a technical solution: An integrated device for dewaxing and anti-corrosion treatment of oil pipelines includes a base platform 1, four casters 2 at the bottom of the base platform 1, a pusher 3 on the left side of the base platform 1, a first support plate 4 fixedly installed on the right side of the base platform 1, a second support plate 5 fixedly connected to the upper right side of the first support plate 4, an anti-corrosion coating tank 6 installed on the top of the base platform 1, several stirring rods 9 inside the anti-corrosion coating tank 6, and a discharge pipe 10 connected to the right side of the anti-corrosion coating tank 6, a threaded rod 18 fixedly installed at the bottom of the second support plate 5, a rotating box 17 threadedly connected to the outside of the threaded rod 18, the rotating box 17 being filled with anti-corrosion coating, a wax scraper 20 fixedly installed on the outside of the rotating box 17, and several nozzles 21 installed on the outside of the rotating box 17 via a solenoid valve.

[0024] The anti-corrosion coating tank 6 has an inlet 7 on the left side of its top surface, and a first motor 8 is fixedly installed on the top surface of the anti-corrosion coating tank 6. The output end of the first motor 8 is connected to the stirring rod 9 through a rotating rod. The first motor 8 drives the stirring rod 9 to stir the coating in the anti-corrosion coating tank 6, thereby improving the uniformity of mixing. Compared with the coating stored in still water, this reduces sedimentation and stratification, ensuring that the coating concentration sprayed by the subsequent spray nozzle 21 is consistent and avoiding uneven thickness of the anti-corrosion coating.

[0025] A second motor 12 is fixedly mounted on the upper surface of the second support plate 5, and a first tensioning wheel 13 is connected to the lower output end of the second motor 12. A transmission belt 14 is connected to the inner side of the first tensioning wheel 13, and a second tensioning wheel 15 is connected to the right side of the transmission belt 14. The bottom left and right sides of the second tensioning wheel 15 are fixedly connected to the telescopic rod 16, and the bottom of the telescopic rod 16 is fixedly connected to the upper surface of the rotating box 17. The middle of the rotating box 17 is threadedly connected to the outer side of the threaded rod 18 to form a rotating lifting structure. The second motor 12 is connected to the first tensioning wheel 13 and the transmission belt 14. The drive belt 14 drives the second tensioning disc 15 to rotate, ensuring that the wax scraper 20 and the nozzle 21 work evenly along the pipeline. The telescopic rod 16 at the bottom of the second tensioning disc 15 is connected to the rotating box 17, which can extend and retract with the diameter of the pipeline, improving the adaptability compared to the fixed length structure. At the same time, the telescopic rod 16 supports the rotating box 17, improving the rotational stability. The rotating box 17 and the threaded rod 18 form a rotating lifting structure, which can move along the pipeline axis. In conjunction with the rotation action, it achieves spiral wax removal and corrosion prevention, improving the coverage compared to fixed position operation and avoiding local omissions in the pipeline.

[0026] The top surface of the rotating box 17 is provided with a material receiving port 19, and the material receiving port 19 is filled with anti-corrosion coating through the connecting hose 11. The hose 11 is connected to the discharge pipe 10. The material receiving port 19 is connected to the discharge pipe 10 through the hose 11, so as to realize the transportation of anti-corrosion coating from the anti-corrosion coating box 6 to the rotating box 17.

[0027] Example 2 Please see Figure 5 This utility model provides a technical solution: Several brush rollers 22 are installed around the bottom outer side of the rotating box 17. The brush rollers 22 at the bottom of the rotating box 17 rotate with the rotating box 17. They can clean the residual wax on the inner wall of the pipe after waxing, and avoid the wax residue from affecting the adhesion of the anti-corrosion coating. Compared with the anti-corrosion coating without a brush structure, the adhesion is improved and the anti-corrosion life is extended.

[0028] Working principle: In use, the first motor 8 drives the stirring rod 9 to stir the coating in the anti-corrosion coating box 6, and then transports it to the rotating box 17 through the discharge pipe 10 and the hose 11, and then seals the receiving port 19 of the rotating box 17; the second motor 12 drives the second tensioning wheel 15 to rotate through the transmission belt 14, and the telescopic rod 16 drives the rotating box 17 to rotate synchronously. At the same time, the rotating box 17 rises and falls along the threaded rod 18. When the rotating box 17 rotates, the outer wax scraper 20 scrapes off the wax layer on the inner wall of the pipe, and the optional brush roller 22 cleans up the residual wax debris; the anti-corrosion coating in the rotating box 17 is sprayed out by the nozzle 21 controlled by the solenoid valve, forming a uniform anti-corrosion coating on the inner wall of the pipe after wax removal; the entire process can be moved by the pusher 3 and the universal wheel 2, which is suitable for long-distance pipeline treatment.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] 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. An integrated device for dewaxing and corrosion protection of oil pipelines, comprising a base platform (1), wherein four casters (2) are provided at the bottom of the base platform (1), and a pusher (3) is provided on the left side of the base platform (1), a first support plate (4) is fixedly installed on the right side of the base platform (1), and a second support plate (5) is fixedly connected to the upper right side of the first support plate (4), characterized in that: A corrosion-resistant coating tank (6) is installed above the base (1), and several stirring rods (9) are provided inside the corrosion-resistant coating tank (6). A discharge pipe (10) is connected and installed on the right side of the corrosion-resistant coating tank (6). A threaded rod (18) is fixedly installed at the bottom of the second support plate (5), and a rotating box (17) is threadedly connected to the outside of the threaded rod (18). The rotating box (17) is filled with corrosion-resistant coating, and a wax scraper (20) is fixedly installed on the outside of the rotating box (17). Several nozzles (21) are installed on the outside of the rotating box (17) through a solenoid valve.

2. The integrated device for dewaxing and corrosion protection of oil pipelines according to claim 1, characterized in that: The anti-corrosion coating tank (6) has an inlet (7) on the left side of its top surface, and a first motor (8) is fixedly installed on the top surface of the anti-corrosion coating tank (6). The output end of the first motor (8) is connected to the stirring rod (9) through a rotating rod.

3. The integrated device for dewaxing and corrosion protection of oil pipelines according to claim 1, characterized in that: The second support plate (5) is fixedly mounted with a second motor (12), and the output end of the second motor (12) is connected to a first tensioning wheel (13). The inner side of the first tensioning wheel (13) is connected to a transmission belt (14), and the right side of the transmission belt (14) is connected to a second tensioning wheel (15).

4. The integrated device for dewaxing and corrosion protection of oil pipelines according to claim 3, characterized in that: The bottom left and right sides of the second tensioning wheel (15) are fixedly connected to the telescopic rod (16), and the bottom of the telescopic rod (16) is fixedly connected to the upper surface of the rotating box (17).

5. The integrated device for dewaxing and corrosion protection of oil pipelines according to claim 4, characterized in that: The rotating box (17) is threaded in the middle and connected to the outside of the threaded rod (18) to form a rotating lifting structure.

6. The integrated device for dewaxing and corrosion protection of oil pipelines according to claim 1, characterized in that: The top surface of the rotating box (17) is provided with a material inlet (19), and the material inlet (19) is filled with anti-corrosion coating through a connecting hose (11), and the hose (11) is connected to the discharge pipe (10).

7. The integrated device for dewaxing and corrosion protection of oil pipelines according to claim 1, characterized in that: Several brush rollers (22) are mounted around the bottom outer side of the rotating box (17).

Images