A calandria apparatus

Abstract

The application relates to a pipe arrangement device applied in the oil field workover field, which comprises at least two mounting racks arranged on one side of a pipe rack frame, a pipe receiving mechanism for receiving oil pipes on the pipe rack frame is arranged on the mounting rack, the pipe receiving mechanism comprises a first lifting frame slidably connected to the mounting rack, a pipe pillow frame is rotationally connected to the first lifting frame, a first driving device for driving the first lifting frame to lift is arranged on the mounting rack, and a conveying mechanism for conveying and lifting the oil pipes on the pipe receiving mechanism is arranged on the mounting rack. The application has the technical effect that the oil pipes are received and conveyed by cooperation of the pipe receiving mechanism and the conveying mechanism, the limitation of the original equipment under low working space is overcome, manual labor is not needed for lifting, the pipe arrangement device is convenient to adapt to pipe rack frames with different heights, the flexibility is higher, and the pipe arrangement efficiency is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of oilfield well workover technology, and in particular to a pipe laying device. Background Technology

[0002] In oilfield well workover operations, regular inspection and maintenance of tubing / rod is a core and crucial step.

[0003] During well workover, workers sequentially remove the downhole tubing / rod and place it on a tubing rack. When running the tubing, the tubing rack mechanism includes a lifting device and a support frame. The lifting device activates, driving the support frame to move below the height of the tubing rack to receive the tubing / rod. The lifting device then activates again, driving the support frame to rise and lift the tubing / rod onto the workover machine. The workover machine's robotic arm grips and transports the lifted tubing / rod to subsequent maintenance procedures. When reinstalling the tubing, the inspected and repaired tubing / rod is placed on the support frame. The lifting device is activated, lowering the support frame to the corresponding height of the tubing rack. Workers then remove the inspected and repaired tubing / rod and place it onto the tubing rack.

[0004] During use, when the height of the pipe rack is low, the support frame does not have enough space to move under the oil pipe of the pipe rack. At this time, it is necessary to manually lift the oil pipe and assist in moving it to the support frame. The lifting and moving process is time-consuming and labor-intensive, which leads to low efficiency of oil pipe laying. Summary of the Invention

[0005] To address the issue that when the pipe rack is low, the support frame lacks sufficient space to move under the oil pipes, requiring manual lifting and assisted transport of the oil pipes to the support frame, which is time-consuming and labor-intensive and results in low pipe laying efficiency, this application provides a pipe laying device with the following technical solution: It includes at least two mounting frames disposed on one side of the pipe rack. Each mounting frame is equipped with a pipe-connecting mechanism for receiving the oil pipes on the pipe rack. The pipe-connecting mechanism includes a first lifting frame slidably connected to the mounting frame, a pipe support frame rotatably connected to the first lifting frame, a first driving device for driving the first lifting frame to rise and fall, and a conveying mechanism for transporting and lifting the oil pipes on the pipe-connecting mechanism.

[0006] In one specific implementation, the first driving device includes a first driving motor mounted on a mounting frame, the output end of the first driving motor is provided with a gear, the first lifting frame is provided with a rack that matches the gear, the gear and the rack mesh with each other, and the mounting frame is provided with a limiting unit for limiting the sliding direction of the first lifting frame.

[0007] In one specific implementation, the limiting unit includes a first slider fixedly mounted on a mounting frame, and a first guide rail matching the first slider is provided on the surface of the first lifting frame facing the first slider, the first guide rail being slidably connected to the first slider.

[0008] In one specific implementation scheme, the pipe support frame is provided with an arc-shaped guide surface, and a limiting frame is provided on the arc-shaped guide surface. The oil pipe is mounted on the arc-shaped guide surface and located between the limiting frame and the pipe rack.

[0009] In one specific implementation, the pipe support frame is provided with a guide block, and a connecting frame is rotatably connected to the first lifting frame. The connecting frame has a sliding groove on its surface facing the pipe support frame that matches the guide block. A limiting block is provided at the bottom of the sliding groove. The guide block is slidably connected in the sliding groove and is mounted on the limiting block.

[0010] In one specific implementation scheme, the end face of the pipe support that is away from the arc-shaped guide surface is provided with an inclined guide surface, and the oil pipe to be installed is placed on the inclined guide surface.

[0011] In one specific implementation, the conveying mechanism includes a second lifting frame slidably connected to the mounting frame, a support frame rotatably connected to the second lifting frame, a stop block provided on the second lifting frame, the support frame mounted on the stop block, a support frame rotatably connected to one end of the support frame away from the second lifting frame, a stop plate provided on the support frame, the support frame mounted on the stop plate, and a second driving device for driving the second lifting frame to lift.

[0012] In one specific implementation, the second drive device includes a second drive motor mounted on a mounting frame, the output end of the second drive motor is provided with a first sprocket, a rotating shaft is rotatably connected to the mounting frame, a second sprocket is fixedly sleeved on the outer edge of the rotating shaft, a chain is tautly wound between the first sprocket and the second sprocket, and the second lifting frame is fixedly mounted on the chain.

[0013] In one specific implementation, a V-shaped roller is rotatably connected to the support frame, and the oil pipe is mounted on the V-groove of the V-shaped roller.

[0014] In summary, this application has the following beneficial technical effects: When the pipe rack height is low and the support frame is difficult to move to the bottom of the pipe rack to receive the oil pipe, the first drive device is activated to lift the pipe support frame on the first lifting frame, moving it to a height corresponding to the pipe rack. This facilitates the placement of the oil pipe on the pipe rack onto the pipe support frame. Subsequently, the pipe support frame lifts the oil pipe to a preset height, and the conveying mechanism is activated to receive and transport the oil pipe to the next process. Utilizing the cooperation of the pipe connection mechanism and the conveying mechanism to receive and transport the oil pipe overcomes the limitations of existing equipment in low working spaces, eliminates the need for manual lifting, facilitates adaptation to pipe racks of different heights, enhances flexibility, and significantly improves pipe laying efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0016] Figure 2 This is a schematic diagram illustrating the structure of the chain in Embodiment 1 of this application.

[0017] Figure 3 This is a structural schematic diagram of the takeover mechanism used in Embodiment 1 of this application.

[0018] Figure 4 yes Figure 2 Enlarged diagram of point A in the middle.

[0019] Reference numerals: 1. Mounting frame; 2. Connecting pipe mechanism; 3. First lifting frame; 4. Pipe pillow frame; 5. First drive motor; 6. Gear; 7. Rack; 8. First slider; 9. First guide rail; 10. Arc-shaped guide surface; 11. Limiting frame; 12. Connecting frame; 13. Guide block; 14. Slide groove; 15. Inclined guide surface; 16. Second lifting frame; 17. Support frame; 18. Abutment block; 19. Support frame; 20. Abutment plate; 21. Second drive motor; 22. First sprocket; 23. Rotating shaft; 24. Chain; 25. V-shaped roller; 26. Limiting block; 27. Conveying mechanism; 28. Buffer pad; 29. ​​Buffer block. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0021] Embodiment 1 of this application discloses a pipe laying device.

[0022] Reference Figure 1 and Figure 2The pipe laying equipment includes at least two mounting frames 1 disposed on one side of the pipe laying frame. In this embodiment, the accompanying drawings illustrate a single mounting frame. In actual application, three mounting frames 1 are installed side-by-side on the well workover machine, with the mounting frame 1 positioned between the well workover machine and the pipe laying frame. The mounting frame 1 is equipped with a pipe connection mechanism 2 for receiving the tubing on the pipe laying frame. The pipe connection mechanism 2 includes a first lifting frame 3 slidably connected to the mounting frame 1, a pipe support frame 4 rotatably connected to the first lifting frame 3, a first driving device for driving the first lifting frame 3 to rise and fall, and a conveying mechanism 27 for conveying and lifting the tubing on the pipe connection mechanism 2. It should be noted that the pipe laying equipment can be applied to the pipe laying and maintenance of tubing and rods; this embodiment uses tubing as an example.

[0023] Therefore, when the pipe rack is too low and the support frame 19 is difficult to move under the pipe rack to receive the oil pipe, the first drive device is activated to lift the pipe support frame 4 on the first lifting frame 3, moving the pipe support frame 4 to a height corresponding to the pipe rack, i.e., moving the pipe support frame 4 under the pipe rack. This facilitates the placement of the oil pipe on the pipe rack onto the pipe support frame 4. Subsequently, the pipe support frame 4 lifts the oil pipe to a preset height, and the conveying mechanism 27 is activated to receive and transport the oil pipe to the next process. By utilizing the cooperation of the pipe connection mechanism 2 and the conveying mechanism 27 to receive and transport the oil pipe, the limitations of the original equipment in low working space are overcome. No manual lifting is required, making it easier to adapt to pipe racks of different heights, increasing flexibility, and significantly improving pipe laying efficiency.

[0024] Reference Figure 3 and Figure 4 The first driving device includes a first drive motor 5 mounted on a mounting frame 1. A gear 6 is mounted on the output end of the first drive motor 5. A rack 7, matching the size of the gear 6 and vertically arranged, is bolted to the first lifting frame 3. The gear 6 and the rack 7 mesh with each other. A limiting unit is provided on the mounting frame 1 to limit the sliding direction of the first lifting frame 3. The limiting unit includes a first slider 8 bolted to the mounting frame 1. A first guide rail 9, matching the size of the first slider 8, is bolted to the surface of the first lifting frame 3 facing the first slider 8. The first guide rail 9 is slidably connected to the first slider 8. The first slider 8 limits the movement direction of the first guide rail 9, improving the positional stability of the first guide rail 9 during lifting. Therefore, starting the first drive motor 5 drives the gear 6 at its output end to rotate. Since the gear 6 and the rack 7 mesh with each other, the rack 7 drives the first lifting frame 3 to move synchronously, realizing the lifting and lowering of the pipe support frame 4.

[0025] Reference Figure 3 and Figure 4The pipe support frame 4 is provided with an arc-shaped guide surface 10, which guides the position of the oil pipe on the pipe support frame 4. A limit frame 11 is bolted to the arc-shaped guide surface 10. The oil pipe is placed on the arc-shaped guide surface 10 and is located between the limit frame 11 and the pipe row frame. The limit frame 11 blocks and limits the position of the oil pipe. In this embodiment, a proximity switch is installed on the limit frame 11. When the oil pipe contacts the limit frame 11, the proximity switch is triggered and sends a signal to the control terminal. The control terminal controls the first drive motor 5 to start, so that the pipe support frame 4 drives the oil pipe to rise to a preset height and maintain it.

[0026] Reference Figure 3 and Figure 4 A guide block 13 is fixedly connected to the surface of the pipe pillow frame 4 facing the first lifting frame 3. A connecting frame 12 is rotatably connected to the first lifting frame 3. A buffer pad 28 is installed on the first lifting frame 3. A buffer block 29 is installed on the surface of the connecting frame 12 facing the first lifting frame 3. The end face of the buffer block 29 facing the first lifting frame 3 contacts the buffer pad 28. The buffer pad 28 reduces the possibility of hard collision between the connecting frame 12 and the first lifting frame 3. The buffer block 29 improves the stability of the position of the connecting frame 12 on the first lifting frame 3. The connecting frame 12 has a groove 14 on its surface facing the pipe rest frame 4, which matches the size of the guide block 13. A limit block 26 is fixedly connected to the bottom of the groove 14. The guide block 13 is slidably connected in the groove 14 and is mounted on the limit block 26. The groove 14 limits the position of the guide block 13. An inclined guide surface 15 is provided on the end face of the pipe rest frame 4 away from the arc-shaped guide surface 10. The oil pipe to be installed is mounted on the inclined guide surface 15. Therefore, the operator can use the cooperation of the guide block 13 and the groove 14 to remove the pipe rest frame 4 from the connecting frame 12, realizing quick removal of the pipe rest frame 4 and changing the placement posture of the pipe rest frame 4 so that the inclined guide surface 15 faces upward.

[0027] Reference Figure 2 and Figure 4 The conveying mechanism 27 includes a second lifting frame 16 slidably connected to the mounting frame 1. A support frame 17 is rotatably connected to the second lifting frame 16. A stop block 18 is bolted to the second lifting frame 16. The support frame 17 is mounted on the stop block 18. A support frame 19 is rotatably connected to the end of the support frame 17 opposite to the second lifting frame 16. A stop plate 20 is fixedly connected to the support frame 17. The support frame 19 is mounted on the stop plate 20. The mounting frame 1 is equipped with a second driving device for driving the second lifting frame 16 to rise and fall. The support frame 17 can rotate around the second lifting frame 16, and the support frame 19 can rotate around the support frame 17, which provides greater flexibility and facilitates use in situations where the space between the mounting frame 1 and the pipe rack is limited.

[0028] Reference Figure 2 and Figure 4The second drive device includes a second drive motor 21 mounted on a mounting frame 1. A first sprocket 22 is mounted on the output end of the second drive motor 21. A rotating shaft 23 is rotatably connected to the mounting frame 1. A second sprocket is fixedly sleeved on the outer edge of the rotating shaft 23. A chain 24 is tautly wound between the first sprocket 22 and the second sprocket. A second lifting frame 16 is fixedly mounted on the chain 24. A V-shaped roller 25 is rotatably connected to the support frame 19. The oil pipe is mounted on the V-groove of the V-shaped roller 25. The V-groove limits the position of the oil pipe, reducing the possibility of shaking during oil pipe transportation and improving the stability of the oil pipe position during transportation. Therefore, starting the second drive motor 21 drives the first sprocket 22 at the output end of the second drive motor 21 to rotate. Since the chain 24 is tautly wound between the first sprocket 22 and the second sprocket, it drives the support frame 19 on the chain 24 to rise and fall.

[0029] The implementation principle of Embodiment 1 of this application is as follows: When it is necessary to unload the oil pipe on the pipe rack onto the existing well workover machine for maintenance, in the initial state, the support frame 19 is located above the pipe pillow frame 4. The first drive motor 5 is started, which drives the gear 6 at the output end of the first drive motor 5 to rotate. Since the gear 6 and the rack 7 mesh with each other, the rack 7 drives the first lifting frame 3 to move synchronously, thereby lifting the pipe pillow frame 4. The pipe pillow frame 4 on the first lifting frame 3 moves to the height corresponding to the pipe rack, that is, the pipe pillow frame 4 is moved below the pipe rack. Then, the operator pushes the oil pipe so that the oil pipe rolls onto the pipe pillow frame 4 through the arc guide surface 10. Then, the pipe pillow frame 4 drives the oil pipe to rise to the preset height and maintain it, without the need for manual lifting. The second drive motor 21 is started, which drives the first sprocket 22 at the output end of the second drive motor 21 to rotate. Since the first sprocket 22 and the second sprocket are tautly wound with a chain 24, the support bracket 19 on the chain 24 is driven to rise and fall to the top of the tubing, and the bottom of the support bracket 19 contacts the outer edge of the tubing. The second lifting frame 16 continues to descend, and the support bracket 19 is first rotated around the connecting frame 12 under the obstruction of the tubing. Then, after passing the tubing, the support bracket 19 returns to the state of being in contact with the backing plate 20 under the action of gravity, that is, the support bracket 19 returns to the horizontal position. At this time, the second lifting frame 16 drives the support bracket 19 to move below the tubing support frame 4. Finally, the second lifting frame 16 rises, so that the V-shaped roller 25 on the support bracket 19 receives the outer edge of the tubing and lifts the tubing to be transported to the well workover operation integrated machine.

[0030] When the repaired tubing needs to be transferred from the well workover machine to the tubing rack, in the initial state, the support frame 19 is located above the tubing support frame 4. The operator can use the guide block 13 and the slide groove 14 to remove the tubing support frame 4 from the connecting frame 12, so as to quickly remove the tubing support frame 4 and change the placement of the tubing support frame 4 so that the inclined guide surface 15 is facing upward. Start the first drive motor 5, which drives the gear 6 at the output end of the first drive motor 5 to rotate. Since the gear 6 and the rack 7 mesh with each other, the rack 7 drives the first lifting frame 3 to move synchronously, which drives the tubing support frame 4 to move to the height corresponding to the tubing rack. At this time, the inclined guide surface 15 is slightly higher than the top end face of the tubing rack. The robotic arm of the well workover machine places the tubing on the V-shaped roller 25, starts the second drive motor 21, and drives the first sprocket 22 at the output end of the second drive motor 21 to rotate. Since the first sprocket 22 and the second sprocket are tautly wound with a chain 24, the support frame 19 on the chain 24 is driven to rise and fall. When the V-shaped roller 25 on the support frame 19 descends to a certain height, the bottom edge of the tubing contacts the inclined guide surface 15 of the pipe rest frame 4. The second lifting frame 16 drives the V-shaped roller 25 to continue to descend, and the tubing gradually detaches from the V-shaped roller 25 and rolls down the inclined guide surface 15 of the pipe rest frame 4 onto the pipe rack, thus completing the overall pipe laying process.

[0031] By utilizing the cooperation of the connecting mechanism 2 and the conveying mechanism 27 to receive and transport the oil pipe, the limitations of the original equipment in low working space are overcome. There is no need for manual labor to lift it, which is easy to adapt to pipe racks of different heights, making it more flexible and significantly improving the efficiency of pipe laying.

[0032] Example 2 Embodiment 2 of this application also discloses a method for laying pipes in a pipe-laying device, the method comprising: Step 1: Start the first drive motor 5, drive the gear 6 at the output end of the first drive motor 5 to rotate, and the rack 7 drives the first lifting frame 3 to move synchronously, so that the pipe support frame 4 on the first lifting frame 3 moves to the height corresponding to the pipe rack. The operator pushes the oil pipe so that the oil pipe rolls onto the pipe support frame 4 through the arc guide surface 10. Step 2: Start the first drive motor 5, which drives the gear 6 at the output end of the first drive motor 5 to rotate. The rack 7 drives the first lifting frame 3 to move synchronously, which in turn drives the oil pipe on the pipe support frame 4 to rise to the preset height. Step 3: Start the second drive motor 21, drive the first sprocket 22 at the output end of the second drive motor 21 to rotate, thereby driving the support bracket 19 on the chain 24 to rise and fall to the top of the oil pipe, and the bottom of the support bracket 19 contacts the outer edge of the oil pipe. Step 4: Start the second drive motor 21. The chain 24 drives the second lifting frame 16 to continue to descend. The support frame 19 first rotates around the connecting frame 12 under the obstruction of the oil pipe. Then, after passing the oil pipe, the support frame 19 returns to the state of being in contact with the backing plate 20 under the action of gravity. At this time, the second lifting frame 16 has driven the support frame 19 to move to the bottom of the pipe support frame 4. Step 5: Start the second drive motor 21. The chain 24 drives the second lifting frame 16 to continue to rise, so that the V-shaped rollers 25 on the support frame 19 can receive the outer edge of the oil pipe and lift the oil pipe to the well workover machine.

[0033] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pipe laying device, characterized in that: It includes at least two mounting brackets (1) arranged on one side of the pipe rack. The mounting bracket (1) is provided with a pipe connection mechanism (2) for receiving the oil pipes on the pipe rack. The pipe connection mechanism (2) includes a first lifting frame (3) slidably connected to the mounting bracket (1). A pipe support frame (4) is rotatably connected to the first lifting frame (3). The mounting bracket (1) is provided with a first driving device for driving the first lifting frame (3) to lift and lower. The mounting bracket (1) is provided with a conveying mechanism (27) for conveying and lifting the oil pipes on the pipe connection mechanism (2).

2. The pipe laying device according to claim 1, characterized in that: The first driving device includes a first driving motor (5) mounted on the mounting frame (1), the output end of the first driving motor (5) is provided with a gear (6), the first lifting frame (3) is provided with a rack (7) that matches the gear (6), the gear (6) and the rack (7) mesh with each other, and the mounting frame (1) is provided with a limiting unit for limiting the sliding direction of the first lifting frame (3).

3. The pipe laying device according to claim 2, characterized in that: The limiting unit includes a first slider (8) fixedly mounted on the mounting frame (1). The first lifting frame (3) has a first guide rail (9) matching the first slider (8) on its surface facing the first slider (8). The first guide rail (9) is slidably connected to the first slider (8).

4. The pipe laying device according to claim 1, characterized in that: The pipe support frame (4) is provided with an arc-shaped guide surface (10), and a limiting frame (11) is provided on the arc-shaped guide surface (10). The oil pipe is mounted on the arc-shaped guide surface (10) and located between the limiting frame (11) and the pipe rack.

5. The pipe laying device according to claim 4, characterized in that: The tube pillow frame (4) is provided with a guide block (13), and the first lifting frame (3) is rotatably connected with a connecting frame (12). The connecting frame (12) has a sliding groove (14) on its surface facing the tube pillow frame (4) that matches the guide block (13). The bottom of the sliding groove (14) is provided with a limiting block (26). The guide block (13) is slidably connected in the sliding groove (14) and is mounted on the limiting block (26).

6. The pipe laying device according to claim 5, characterized in that: The pipe support frame (4) has an inclined guide surface (15) on the end face away from the arc-shaped guide surface (10), and the oil pipe to be installed is placed on the inclined guide surface (15).

7. The pipe laying device according to claim 6, characterized in that: The conveying mechanism (27) includes a second lifting frame (16) slidably connected to the mounting frame (1), a support frame (17) rotatably connected to the second lifting frame (16), a stop block (18) provided on the second lifting frame (16), the support frame (17) mounted on the stop block (18), a support frame (19) rotatably connected to one end of the support frame (17) away from the second lifting frame (16), a stop plate (20) provided on the support frame (17), the support frame (19) mounted on the stop plate (20), and a second driving device for driving the second lifting frame (16) to lift.

8. The pipe laying device according to claim 7, characterized in that: The second drive device includes a second drive motor (21) mounted on the mounting frame (1). The output end of the second drive motor (21) is provided with a first sprocket (22). A rotating shaft (23) is rotatably connected to the mounting frame (1). A second sprocket is fixedly sleeved on the outer edge of the rotating shaft (23). A chain (24) is tensioned and wound between the first sprocket (22) and the second sprocket. The second lifting frame (16) is fixedly mounted on the chain (24).

9. The pipe laying device according to claim 8, characterized in that: The support frame (19) is rotatably connected to a V-shaped roller (25), and the oil pipe is mounted on the V-shaped groove of the V-shaped roller (25).

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