Pipeline pickling, passivating and soaking device

Abstract

The utility model discloses a pipeline pickling passivation soaking device which comprises a soaking pool, the top of the soaking pool is fixedly connected with a pair of mounting plates, and the outer side wall of the mounting plate on one side is fixedly connected with a first motor. In the actual use process, the first motor on the mounting plate is started to drive the threaded rod to rotate, the connecting block moves on the threaded rod, the connecting block drives the connecting frame to move, the connecting frame is limited by the positioning rod through the connecting block on the other side so as to stably move, and the connecting frame moves to drive the rotating column to move. A rotating column is matched with a stirring rod on a connecting sleeve to stir and mix a pickling solution and a passivation solution in a soaking pool, the matching solves the problem that an existing device needs manual mixing by workers and the problem that stirring is not uniform in the stirring process, through the matching of the devices, the stirring uniformity is guaranteed, and the service life of the pickling solution and the passivation solution is prolonged. The pickling solution and the passivation solution can be fully mixed, the mixing efficiency is improved, and the operation reliability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline cleaning technology, specifically a pipeline acid pickling and passivation soaking device. Background Technology

[0002] A pipeline pickling and passivation immersion device is used for pickling and passivating pipelines. It typically includes an immersion container, a pickling and passivation solution circulation system, and a filtration device. By immersing the pipeline in a specific pickling and passivation solution, rust and impurities on the inner wall of the pipeline can be effectively removed, and a protective film can be formed on its surface, improving the corrosion resistance and service life of the pipeline.

[0003] A search revealed Chinese patent CN217757674U, which discloses an automatic pickling device for stainless steel pipelines in hydropower engineering. This patent describes a steel frame that supports the pipelines requiring pickling and passivation. During use, a lifting auxiliary device connected to the steel frame allows the frame platform to sway back and forth, ensuring the pickling and passivation solution thoroughly washes the pipelines. The frame can also be lowered and raised to allow the pipelines to enter and exit the pickling and passivation solution. A walking auxiliary device on the gantry automatically moves the steel frame back and forth. Therefore, this invention enables the automatic immersion of pipelines in the pickling and passivation solution for pickling and passivation, and automatic lifting after pickling and passivation. This avoids direct contact between personnel and the pickling and passivation solution during the pickling and passivation process, ensuring safety. Furthermore, the device automatically unloads the pipelines, eliminating the need for manual lifting, making it labor-saving and convenient. The system achieves high efficiency through a program input into the control cabinet.

[0004] In this solution, although the installation of the pipeline does not require manual operation by the staff, the pickling and passivation soaking liquid in the device is formed by mixing the pickling solution and the passivation solution. However, the device does not have a stirring device, and the mixing needs to be done manually by the staff. This can lead to uneven mixing. In order to solve this technical problem, this utility model proposes a pipeline pickling and passivation soaking device. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In this solution, although the installation of the pipeline does not require manual operation by the staff, the pickling and passivation soaking liquid in the device is formed by mixing the pickling solution and the passivation solution. However, the device does not have a stirring device, and the mixing needs to be done manually by the staff. This can lead to uneven mixing. In order to solve this technical problem, this utility model proposes a pipeline pickling and passivation soaking device.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pipeline pickling and passivation immersion device, comprising an immersion tank, a pair of mounting plates fixedly connected to the top of the immersion tank, a motor fixedly connected to the outer wall of one side of the mounting plate, a threaded rod fixedly connected to the output end of the motor, a connecting frame provided at the top of the immersion tank, connecting blocks fixedly connected to both sides of the connecting frame, one connecting block threadedly connected to the outer wall of the threaded rod, a positioning rod slidably connected inside the other connecting block, and the positioning rod fixedly connected between the two mounting plates, a rotating column rotatably connected inside the connecting frame, a plurality of connecting sleeves rotatably connected to the outer wall of the rotating column, a stirring rod fixedly connected to the outer wall of each connecting sleeve, and the stirring rod rotatably connected inside the immersion tank.

[0009] Preferably, a partition is fixedly connected inside the soaking tank, a liquid inlet is provided below the partition, and a baffle is slidably connected below the partition, the baffle passing through the soaking tank and extending to the outside of the soaking tank, and a carrying frame is provided inside the soaking tank.

[0010] Preferably, a filter box is provided outside the soaking tank, and a nylon filter screen and a metal wire filter screen are slidably connected inside the filter box.

[0011] Preferably, a control valve is provided on one side of the filter box, and a water outlet pipe is provided inside the control valve. The water outlet pipe passes through the control valve and extends into the filter box. A water pump is provided on the other side of the filter box. An inlet pipe is fixedly connected to the output end of the water pump. The inlet pipe passes through the water pump and extends into the filter box. A drain pipe is provided on the outer wall of the soaking tank.

[0012] Preferably, a fixed frame is fixedly connected to the top of the soaking pool, a second motor is fixedly connected to the top of the fixed frame, a winding drum is fixedly connected to the output end of the second motor, a rope is wound around the outer wall of the winding drum, and the other end of the rope is fixedly connected to the loading frame.

[0013] Preferably, a limiting frame is fixedly connected to the outer wall of the fixed frame, the rope is slidably connected to the limiting frame, and a pair of fixed pulleys are fixedly connected to both sides of the loading frame, with the fixed pulleys corresponding to the limiting frame.

[0014] (III) Beneficial Effects

[0015] This invention provides a pipeline pickling and passivation soaking device. It has the following beneficial effects:

[0016] (1) Once the motor on the mounting plate starts, it drives the threaded rod to rotate. The connecting block moves on the threaded rod, and the connecting block drives the connecting frame to move. The connecting frame is limited by the positioning rod through the connecting block on the other side, thus moving stably. The movement of the connecting frame drives the rotating column to move. The rotating column, together with the stirring rod on the connecting sleeve, stirs and mixes the pickling solution and passivation solution in the soaking tank. This combination solves the problem that the existing device requires manual mixing by the staff. Moreover, during the stirring process, uneven mixing may occur. Through their combination, the uniformity of mixing is ensured, so that the pickling solution and passivation solution can be fully mixed, improving the mixing efficiency and the reliability of the device operation.

[0017] (2) When the soaked liquid needs to be processed, the water pump is started and the liquid is pumped into the filter box through the inlet pipe. The liquid first passes through the metal wire filter screen, which can intercept larger impurities. The liquid after preliminary filtration then passes through the nylon filter screen, which can filter out fine particulate impurities. After two layers of filtration, the clean liquid flows back to the corresponding pool (such as the soaking pool) through the outlet pipe after the control valve is opened for recycling. This combination solves the problem of direct discharge after the trial of the existing device, which leads to waste. This device achieves graded filtration of impurities through the combination of metal wire filter screen and nylon filter screen, which greatly improves the filtration effect, makes the recycled liquid cleaner, and improves the utilization rate of resources. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the soaking tank of this utility model;

[0021] Figure 4 This is a top view of the structure of this utility model.

[0022] In the diagram: 1. Soaking tank; 2. Mounting plate; 3. Motor 1; 4. Threaded rod; 5. Connecting frame; 6. Connecting block; 7. Rotating column; 8. Connecting sleeve; 9. Stirring rod; 10. Partition plate; 11. Baffle plate; 12. Positioning rod; 13. Fixing frame; 14. Motor 2; 15. Winding drum; 16. Limiting frame; 17. Rope; 18. Loading frame; 19. Fixed pulley; 20. Filter box; 21. Nylon filter screen; 22. Metal wire filter screen; 23. Control valve; 24. Water outlet pipe; 25. Liquid inlet pipe; 26. Water pump; 27. Drain pipe. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] Example 1: A pipeline pickling and passivation immersion device includes an immersion tank 1. A pair of mounting plates 2 are fixedly connected to the top of the immersion tank 1. A motor 3 is fixedly connected to the outer wall of one side of the mounting plate 2. A threaded rod 4 is fixedly connected to the output end of the motor 3. A connecting frame 5 is provided on the top of the immersion tank 1. Connecting blocks 6 are fixedly connected to both sides of the connecting frame 5. One side of the connecting block 6 is threaded to the outer wall of the threaded rod 4. A positioning rod 12 is slidably connected inside the other side of the connecting block 6 and is fixedly connected between the two mounting plates 2. A rotating column 7 is rotatably connected inside the connecting frame 5. Multiple connecting sleeves 8 are rotatably connected to the outer wall of the rotating column 7. A stirring rod 9 is fixedly connected to the outer wall of each connecting sleeve 8 and is rotatably connected inside the immersion tank 1. A partition 10 is fixedly connected inside the immersion tank 1. A liquid inlet is provided below the partition 10. A baffle 11 is slidably connected below the partition 10 and extends through the immersion tank 1 to the outside of the immersion tank 1. A loading frame 18 is provided inside the immersion tank 1.

[0026] Add the pickling solution and passivation solution to the soaking tank 1 respectively. Next, start the motor 3 mounted on the outside of the mounting plate 2. Once motor 3 starts running, it drives the threaded rod 4 to rotate. As the threaded rod 4 rotates, the connecting block 6 connected to it moves back and forth. The movement of the connecting block 6 causes the connecting frame 5 to move back and forth as well. Simultaneously, the connecting frame 5 is limited to the positioning rod 12 by the connecting block 6 on the other side. This design makes the connecting frame 5 more stable during movement. As the connecting frame 5 moves, the rotating column 7 also moves back and forth. The movement of the rotating column 7, in conjunction with the stirring rod 9 on the connecting sleeve 8, stirs and mixes the mixture. In this way, the pickling solution and passivation solution can be thoroughly mixed together, which not only improves work efficiency but also reduces the tediousness of manual operation.

[0027] Example 2: The difference between this example and Example 1 is that a filter box 20 is provided outside the soaking tank 1. A nylon filter screen 21 and a metal wire filter screen 22 are slidably connected inside the filter box 20. A control valve 23 is provided on one side of the filter box 20, and a water outlet pipe 24 is provided inside the control valve 23, extending through the control valve 23 and into the filter box 20. A water pump 26 is provided on the other side of the filter box 20, and an inlet pipe 25 is fixedly connected to the output end of the water pump 26, extending through the water pump 26 and into the filter box 20. Inside the filter box 20, a drain pipe 27 is provided on the outer wall of the soaking tank 1. A fixed frame 13 is fixedly connected to the top of the soaking tank 1. A motor 14 is fixedly connected to the top of the fixed frame 13. A winding drum 15 is fixedly connected to the output end of the motor 14. A rope 17 is wound around the outer wall of the winding drum 15. The other end of the rope 17 is fixedly connected to the loading frame 18. A limit frame 16 is fixedly connected to the outer wall of the fixed frame 13. The rope 17 is slidably connected to the limit frame 16. A pair of fixed pulleys 19 are fixedly connected to both sides of the loading frame 18, and the fixed pulleys 19 correspond to the limit frame 16.

[0028] Pull the positioning rod 12 outward, and the mixed liquid will flow through the liquid inlet to the left side of the soaking tank 1. Next, place the pipe in the carrying frame 18, and then start the motor 14. After the motor 14 starts running, it drives the winding drum 15 to rotate. During the rotation of the winding drum 15, the rope 17 will be unloaded, so the carrying frame 18 will be released and enter the soaking tank 1 to begin soaking. As the carrying frame 18 moves downward, it is limited by the fixed pulleys 19 on both sides and is fixed on the limiting frame 16. This design makes the carrying frame 18 more stable during movement. After soaking, start the water pump 26 and pump the used liquid into the filter box 20 through the liquid inlet pipe 25 for filtration. During the filtration process, larger impurities are first intercepted by the metal wire filter screen 22, and then fine particulate impurities are filtered out by the nylon filter screen 21. Then, open the control valve 23, and the filtered liquid flows back to the right side of the soaking tank 1 through the water outlet pipe 24. This achieves the effect of liquid recycling and saves resources. After the liquid has been used multiple times, it is discharged out through drain pipe 27.

[0029] During operation, when workers need to pickle and passivate the pipeline, the pickling solution and passivation solution are first added to the soaking tank 1 respectively. Then, the motor 3 on the outside of the mounting plate 2 is started. Motor 3 drives the threaded rod 4 to rotate. The rotation of the threaded rod 4 causes the connecting block 6 to move back and forth. The movement of the connecting block 6 causes the connecting frame 5 to move back and forth. Simultaneously, the connecting frame 5 is limited by the connecting block 6 on the other side, which is positioned on the positioning rod 12, making the movement more stable. The movement of the connecting frame 5 also causes the rotating column 7 to move back and forth, and, in conjunction with the stirring rod 9 on the connecting sleeve 8, stirs and mixes the mixture, ensuring thorough mixing of the pickling solution and passivation solution. This improves work efficiency and reduces manual operation. After mixing, pull out the positioning rod 12, and the mixed liquid flows through the liquid inlet to the left side of the soaking tank 1. At this time, place the pipe inside the carrying frame 18, start the motor 14, and drive the winding drum 15 to rotate. The winding drum 15 releases the rope 17, thereby loosening the carrying frame 18 into the soaking tank 1 for soaking. As the carrying frame 18 moves down, it is limited by the fixed pulleys 19 on both sides on the limiting frame 16, making the carrying frame 18 more stable. After soaking, start the water pump 26, and pump the used liquid into the filter box 20 through the liquid inlet pipe 25 for filtration. Larger impurities are intercepted by the metal wire filter screen 22, and fine particulate impurities are filtered out by the nylon filter screen 21. Open the control valve 23, and the liquid flows back to the right side of the soaking tank 1 through the water outlet pipe 24, thereby achieving the effect of recycling and saving resources. After multiple uses, it is discharged externally through the drain pipe 27.

[0030] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A pipeline pickling and passivation soaking device, characterized in that: The device includes a soaking tank (1), a pair of mounting plates (2) are fixedly connected to the top of the soaking tank (1), a motor (3) is fixedly connected to the outer wall of one side of the mounting plate (2), a threaded rod (4) is fixedly connected to the output end of the motor (3), a connecting frame (5) is provided on the top of the soaking tank (1), a connecting block (6) is fixedly connected to both sides of the connecting frame (5), a connecting block (6) on one side is threaded to the outer wall of the threaded rod (4), a positioning rod (12) is slidably connected inside the connecting block (6) on the other side, and the positioning rod (12) is fixedly connected between the two mounting plates (2), a rotating column (7) is rotatably connected inside the connecting frame (5), a plurality of connecting sleeves (8) are rotatably connected to the outer wall of the rotating column (7), a stirring rod (9) is fixedly connected to the outer wall of each connecting sleeve (8), and the stirring rod (9) is rotatably connected inside the soaking tank (1).

2. The pipeline pickling and passivation soaking device according to claim 1, characterized in that: The soaking tank (1) is fixedly connected to a partition (10), a liquid inlet is provided below the partition (10), and a baffle (11) is slidably connected below the partition (10). The baffle (11) penetrates the soaking tank (1) and extends to the outside of the soaking tank (1). A loading frame (18) is provided inside the soaking tank (1).

3. The pipeline pickling and passivation soaking device according to claim 1, characterized in that: The soaking tank (1) is provided with a filter box (20) on the outside, and a nylon filter screen (21) is slidably connected inside the filter box (20), and a metal wire filter screen (22) is slidably connected inside the filter box (20).

4. The pipeline pickling and passivation soaking device according to claim 3, characterized in that: A control valve (23) is provided on one side of the filter box (20). A water outlet pipe (24) is provided inside the control valve (23). The water outlet pipe (24) passes through the control valve (23) and extends into the filter box (20). A water pump (26) is provided on the other side of the filter box (20). An inlet pipe (25) is fixedly connected to the output end of the water pump (26). The inlet pipe (25) passes through the water pump (26) and extends into the filter box (20). A drain pipe (27) is provided on the outer wall of the soaking pool (1).

5. The pipeline pickling and passivation soaking device according to claim 2, characterized in that: The soaking pool (1) is fixedly connected to a fixed frame (13) at the top. The fixed frame (13) is fixedly connected to a motor (14) at the top. The output end of the motor (14) is fixedly connected to a winding drum (15). A rope (17) is wound around the outer wall of the winding drum (15). The other end of the rope (17) is fixedly connected to the loading frame (18).

6. The pipeline pickling and passivation soaking apparatus according to claim 5, characterized in that: The outer wall of the fixed frame (13) is fixedly connected to the limiting frame (16), the rope (17) is slidably connected to the limiting frame (16), and a pair of fixed pulleys (19) are fixedly connected to both sides of the loading frame (18), and the fixed pulleys (19) correspond to the limiting frame (16).

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