Groove machining equipment for deep sea oil and gas pipeline

By designing a bevel processing equipment for deep-sea oil and gas pipelines, the synchronous movement of clamping chucks and rotating discs and driving the drive components, efficient processing of pipelines of different pipe diameters is achieved, solving the problems of cumbersome operation and large footprint of existing equipment.

CN222754446UActive Publication Date: 2025-04-15HIMILE MECHANICAL MFG
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Patent Information

Application Number
CN202421411383.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-20
Publication Date
2025-04-15
Estimated Expiration
2034-06-20

AI Technical Summary

Technical Problem

The existing deep-sea water-blocking pipe bevel processing equipment is complicated to operate, occupying a large site space, making it difficult to efficiently process pipelines of different pipe diameters.

Method used

A bevel processing equipment for deep-sea oil and gas pipelines is designed, and the clamping chuck and the rotary disc move simultaneously. The first driving component drives the jaws to retract, and the clamping chuck is automatically straightened and centered; the tool is arranged on the rotary disc, and the second driving component drives the rotary disc to rotate, and the tool moves in a specific direction to achieve efficient processing of the pipe bevel.

Benefits of technology

It realizes rapid and precise processing of pipes of different pipe diameters, improves processing efficiency, reduces floor space and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a groove processing device for a deep sea oil and gas pipeline, which belongs to the technical field of marine riser groove processing, and comprises a pipeline supporting assembly, a first horizontal direction, a second horizontal direction and a second horizontal direction, the clamping chuck is provided with a first through hole and a plurality of clamping jaws and can move in the first horizontal direction and the vertical direction. The rotating disc is rotationally arranged on the clamping chuck, and a second through hole is formed in the rotating disc; the cutter mounting seat is arranged on the rotating disc and can move in the first horizontal direction and the second linear direction; the cutter is mounted on the cutter mounting seat; the balancing assembly enables the clamping chuck to be in a balanced state; the clamping chuck moves in the first horizontal direction to enable the pipeline to penetrate through the first through hole; the clamping jaws are retracted inwards in the radial direction to make contact with the pipeline, the clamping chuck can be driven to move in the vertical direction, and automatic alignment and centering are achieved in the pipeline clamping process; when the rotating disc rotates, the cutter moves in the second linear direction and the first horizontal direction, and then groove machining of the pipeline can be achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of deep-sea riser groove processing devices, in particular to a groove processing device for deep-sea oil and gas pipelines. Background Art

[0002] A deep-sea riser is an underwater device, specifically a steel pipe that connects the seabed blowout preventer group and the floating offshore drilling rig. It is a type of deep-sea oil and gas pipeline. Deep-sea riser is mainly used to isolate seawater, introduce drilling tools and casing, and form a channel for mud circulation.

[0003] At present, in the production process of deep-sea risers, since the length of the main pipe and the auxiliary pipe is 12 meters, which is relatively long, the special machine structure used for deep-sea riser beveling processing is large, which is not only cumbersome to operate when processing the beveling of pipes with different diameters, but also greatly occupies site space.

[0004] Therefore, researching and designing a groove processing equipment which can conveniently and quickly realize the clamping and alignment of pipes of different diameters, has high processing efficiency and occupies a small space is a problem that needs to be solved urgently at this stage. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a groove processing equipment for deep-sea oil and gas pipelines, in which the clamping chuck and the rotating disk move synchronously along the first horizontal direction, so that the pipeline can pass through the first through hole on the clamping chuck; the clamping chuck is in a balanced state under the support of the balancing component; the first driving component drives the clamping claw to retract radially, and when the clamping claw contacts the pipeline, the clamping chuck can be driven to move in the vertical direction, and the clamping chuck automatically finds the center during the process of clamping and fixing the pipeline; the tool is arranged on the rotating disk, and when the second driving component drives the rotating disk to rotate, the tool moves along the second straight line direction and the first horizontal direction, so as to realize the groove processing of the pipeline, and can conveniently and quickly process pipelines of different diameters, with high processing efficiency and small space occupation.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] The utility model provides a groove processing device for deep-sea oil and gas pipelines, comprising:

[0008] a pipe support assembly on which the pipe can be placed along a first horizontal direction;

[0009] A clamping chuck, the clamping chuck is located at one end of the pipe support assembly along the first horizontal direction; the clamping chuck can move relative to the pipe support assembly along the first horizontal direction and the vertical direction; the clamping chuck is provided with a first through hole, the axis of the clamping chuck is parallel to the first horizontal direction and is located on the same vertical plane; the clamping chuck is provided with a plurality of claws, and the claws are connected to a first driving assembly that drives them to move radially along the clamping chuck;

[0010] A rotating disk, the rotating disk is rotatably disposed on the clamping chuck, and a second through hole is provided on the rotating disk; the axis of the rotating disk is colinear with the axis of the clamping chuck, and the rotating disk is connected to a second driving assembly for driving the rotating disk to rotate;

[0011] a tool mounting seat, the tool mounting seat being arranged on the rotating disk, the tool mounting seat being movable relative to the rotating disk along the first horizontal direction and a second linear direction, the second linear direction being perpendicular to the first horizontal direction;

[0012] A tool, the tool being mounted on the tool mounting seat;

[0013] A balancing component is arranged at the bottom of the clamping chuck, and the balancing component applies a supporting force to the clamping chuck to keep the clamping chuck in a balanced state at all times.

[0014] As a preferred technical solution, it includes a base, on which a first movable seat is provided. The first movable seat can move along the first horizontal direction. The clamping chuck is provided on the first movable seat and can move in the vertical direction relative to the first movable seat.

[0015] As a preferred technical solution, the base is provided with a first guide rail extending along the first horizontal direction, the first guide rail is provided with a first slider capable of moving along the first guide rail, and the first moving seat is fixed on the first slider;

[0016] And / or, a vertically arranged guide sleeve is disposed on the first movable seat, and a vertically arranged guide column is disposed on the clamping chuck, and the guide column extends into the guide sleeve and is in clearance fit with the guide sleeve.

[0017] As a preferred technical solution, the balancing component is configured as a balancing cylinder, which has a rod chamber and a rodless chamber, the rodless chamber is connected to an intake pipe and a pressure relief pipe, the intake pipe is provided with a pressure control valve, and the pressure relief pipe is provided with a pressure relief valve.

[0018] As a preferred technical solution, the balancing cylinder comprises a cylinder body, a piston and a cylinder rod; the cylinder body has a chamber, the piston is arranged in the chamber and forms a reciprocating dynamic seal with the inner wall of the chamber, and the piston divides the chamber into the rod chamber and the rodless chamber; the cylinder rod is vertically arranged, the lower end of the cylinder rod passes through the rod chamber and is fixedly connected to the piston, and the upper end of the cylinder rod is fixedly connected to the clamping chuck;

[0019] And / or, the rod cavity is provided with a communication port communicating with the external environment;

[0020] And / or, one of the claws is located directly above the first through hole and is movable in a vertical direction.

[0021] As a preferred technical solution, the pipeline support assembly includes a plurality of V-shaped support seats distributed along the first horizontal direction.

[0022] As a preferred technical solution, the projection of the pipeline along the first horizontal direction all passes through the first through hole and the second through hole;

[0023] And / or, the axes of the first through hole and the second through hole are both colinear with the axis of the clamping chuck;

[0024] And / or, the rotating disk is rotatably connected to the clamping chuck via a bearing;

[0025] And / or, the rotating disk is arranged on the end surface of the clamping chuck facing away from the pipe support assembly.

[0026] As a preferred technical solution, the rotating disk is provided with a second moving seat capable of moving along the second linear direction, and the second moving seat is connected to a third driving component for driving it to move; the second moving seat is provided with a third moving seat capable of moving along the first horizontal direction, and the third moving seat is connected to a fourth driving component for driving it to move; the tool mounting seat is fixed on the third moving seat.

[0027] As a preferred technical solution, the rotating disk is provided with a second guide rail extending along the second straight line direction, the second guide rail is provided with a second slider capable of moving along the second guide rail, and the second moving seat is fixed on the second slider; the third driving component is set as a screw stepping motor;

[0028] And / or, the second movable seat is provided with a third guide rail extending along the first horizontal direction, the third guide rail is provided with a third slider capable of moving along the third guide rail, and the third movable seat is fixed on the third slider; the fourth driving component is set as a screw stepping motor.

[0029] As a preferred technical solution, the first driving component and the second driving component are both configured as motors;

[0030] And / or, a rotatable rotating slip ring is provided on the rotating disk, and the rotating axis of the rotating slip ring is colinear with the axis of the rotating disk.

[0031] The beneficial effects of the utility model are as follows:

[0032] 1. The pipeline support assembly of the utility model can place the pipeline along the first horizontal direction, and the clamping chuck and the rotating disk move synchronously along the first horizontal direction, so that one end of the pipeline can pass through the first through hole on the clamping chuck; the clamping chuck is in a balanced state under the support of the balancing assembly; when clamping the pipeline, the first driving assembly drives the clamping claw to retract radially, and when the clamping claw contacts the pipeline, the clamping chuck can be driven to move in the vertical direction, and the alignment and centering between the clamping chuck and the pipeline can be automatically achieved; the tool is arranged on the rotating disk, and when the second driving assembly drives the rotating disk to rotate, the tool moves along the second linear direction and the first horizontal direction, so as to achieve the groove processing of the pipeline, and can conveniently and quickly process deep-sea oil and gas pipelines of different diameters, and occupies a small space.

[0033] 2. The balancing component of the utility model is a balancing cylinder, and the rodless chamber of the balancing cylinder is connected with an intake pipe and a pressure relief pipe. The intake pipe is provided with a pressure control valve, and the pressure relief pipe is provided with a pressure relief valve. The pressure of the compressed air in the intake pipe, the threshold values ​​of the pressure control valve and the pressure relief valve are always matched with the gravity of all components on the clamping chuck, which can effectively support the clamping chuck and keep the clamping chuck in a balanced state.

[0034] 3. The processing efficiency of the utility model is high, and the original average groove processing time of 1 hour for a deep-sea oil and gas pipeline can be shortened to 0.3 hours, laying a good foundation for energy saving, consumption reduction, quality improvement and efficiency enhancement. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a groove processing device for deep-sea oil and gas pipelines of the utility model;

[0036] Figure 2 for Figure 1 A magnified image of area A;

[0037] Figure 3 for Figure 1 A schematic diagram of the structure from another perspective;

[0038] Figure 4 for Figure 1 Side view of

[0039] Figure 5 for Figure 1Schematic diagram of the structure of the balancing component.

[0040] In the figure: 1-V-shaped support seat, 2-clamping chuck, 21-claw, 22-first drive assembly, 23-guide column, 3-rotating disk, 31-second through hole, 32-second drive assembly, 33-second movable seat, 331-third guide rail, 34-third drive assembly, 35-third movable seat, 36-fourth drive assembly, 37-second guide rail, 38-rotating slip ring, 4-tool mounting seat, 5-tool, 6-balancing assembly, 61-cylinder body, 62-piston, 63-cylinder rod, 64-rod chamber, 641-connecting port, 65-rodless chamber, 66-intake pipe, 661-pressure control valve, 67-pressure relief pipe, 671-pressure relief valve, 7-base, 71-first movable seat, 711-guide sleeve, 72-first guide rail, 8-pipeline. DETAILED DESCRIPTION

[0041] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0042] Please refer to Figure 1-Figure 5, is an embodiment of a deep-sea oil and gas pipeline groove processing equipment provided by the utility model, comprising a pipeline support assembly, a pipeline 8 can be placed on the pipeline support assembly along a first horizontal direction; a clamping chuck 2 is located at one end of the pipeline support assembly along the first horizontal direction; the clamping chuck 2 can move relative to the pipeline support assembly along the first horizontal direction and the vertical direction; a balancing assembly 6 is arranged at the bottom of the clamping chuck 2, and the balancing assembly 6 always applies a supporting force to the clamping chuck 2, so that the clamping chuck 2 is always in a balanced state, That is, when the clamping chuck 2 is subjected to a force in a non-first horizontal direction, it will move in the vertical direction; a first through hole is provided on the clamping chuck 2, and the axis of the clamping chuck 2 is parallel to the first horizontal direction and located on the same vertical plane. The clamping chuck 2 moves in the first horizontal direction, so that one end of the pipe 8 can pass through the first through hole on the clamping chuck 2. The clamping chuck 2 can be lifted and lowered to make the axis of the clamping chuck 2 and the axis of the pipe 8 collinear; a plurality of claws 21 are provided on the clamping chuck 2, and the plurality of claws 21 are connected to a driving mechanism that drives them to move along the clamping chuck 2 The first drive assembly 22 moves radially synchronously. When the first drive assembly 22 drives the claw 21 to retract radially, the claw 21 contacts the pipe 8 and drives the clamping chuck 2 to move in the vertical direction. When the pipe 8 is clamped, the alignment and centering between the clamping chuck 2 and the pipe 8 are automatically realized; the rotating disk 3 is rotatably arranged on the clamping chuck 2, and the rotating disk 3 is provided with a second through hole 31; the axis of the rotating disk 3 is colinear with the axis of the clamping chuck 2, and the rotating disk 3 is connected with a second drive assembly 32 that drives it to rotate; the tool mounting seat 4 is arranged on the rotating disk 3, and the tool mounting seat 4 can move relative to the rotating disk 3 in a first horizontal direction and a second linear direction, and the second linear direction is perpendicular to the first horizontal direction; the tool 5 is installed on the tool mounting seat 4, and when the second drive assembly 32 drives the rotating disk 3 to rotate, the tool 5 moves in the second linear direction and the first horizontal direction (i.e., the radial and axial directions of the pipe 8), so that the groove processing of the pipe 8 can be realized, and deep-sea oil and gas pipelines 8 of different diameters can be processed conveniently and quickly, with high processing efficiency and small space occupation.

[0043] It should be noted that a claw 21 is preferably located directly above the first through hole and can move in the vertical direction, and when the clamping chuck 2 is not subjected to external force, the height of its axis is slightly higher than the height of the axis of the pipe 8. When the claw 21 is radially retracted, the claw 21 directly above the first through hole first abuts against the pipe 8, and the clamping chuck 2 can then automatically rise until the axis of the clamping chuck 2 is collinear with the axis of the pipe 8.

[0044] Furthermore, the projection of the pipe 8 along the first horizontal direction should all pass through the first through hole and the second through hole 31 to ensure that when the clamping chuck 2 and the rotating disk 3 move synchronously along the first horizontal direction, one end of the pipe 8 can pass through the first through hole on the clamping chuck 2 and the second through hole 31 on the rotating disk 3 in sequence, and be exposed by 3-5 cm, which is convenient for processing the groove; at the same time, the first through hole and the second through hole 31 are preferably set as circular holes, and the axes of the first through hole and the second through hole 31 are both collinear with the axis of the clamping chuck 2. After the clamping chuck 2 and the pipe 8 are clamped, the axes of the pipe 8, the clamping chuck 2 and the rotating disk 3 are all collinear, and the first through hole and the second through hole 31 are both easy to process; in other embodiments, the axes of the first through hole and the second through hole 31 may not be collinear with the axis of the clamping chuck 2, so as not to hinder the passage of one end of the pipe 8 through the first through hole and the second through hole 31 and the automatic alignment and centering between the pipe 8 and the clamping chuck 2.

[0045] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 The utility model also includes a base 7, on which a first movable seat 71 is provided, and the first movable seat 71 can move along the first horizontal direction. The clamping chuck 2 is arranged on the first movable seat 71 and can move in the vertical direction relative to the first movable seat 71; specifically, the base 7 is provided with two first guide rails 72 extending along the first horizontal direction, and the first guide rails 72 are provided with a first slider that can move along the first guide rails, and the first movable seat 71 is fixed on the first slider to realize the movement of the clamping chuck 2 in the first horizontal direction; the first movable seat 71 is provided with a vertically arranged guide sleeve 711, and the clamping chuck 2 is provided with a vertically arranged guide column 23, which extends into the guide sleeve 711 and cooperates with the guide sleeve 711 clearance, so that the clamping chuck 2 can move relative to the first movable seat 71 in the vertical direction.

[0046] For details, please refer to Figure 1 , Figure 3 and Figure 4 The pipe support assembly is preferably fixed on the base 7, and the pipe support assembly includes a plurality of V-shaped support seats 1 distributed along the first horizontal direction, and pipes 8 of different diameters can be stably placed on the V-shaped support seat 1 along the first horizontal direction; further, the axis of the V-shaped support seat 1 and the axis of the clamping chuck 2 are located on the same vertical plane, and the height of the V-shaped support seat 1 should be higher than the height of the first guide rail 72, so that the axis of the pipe 8 and the axis of the clamping chuck 2 are located on the same vertical plane and are close in height.

[0047] In this embodiment, please refer to Figure 1 and Figure 5The balancing component 6 is configured as a balancing cylinder, which has a rod chamber 64 and a rodless chamber 65. The rodless chamber 65 is connected to an air inlet pipe 66 and a pressure relief pipe 67. The air inlet pipe 66 is provided with a pressure control valve 661, and the pressure relief pipe 67 is provided with a pressure relief valve 671. The pressure of the compressed air in the air inlet pipe 66, the threshold values ​​of the pressure control valve 661 and the pressure relief valve 671 are always matched with the gravity of all components on the clamping chuck 2. When the clamping chuck 2 rises, the compressed air will quickly enter the rodless chamber 65 from the air inlet pipe 66 to replenish the air volume. When the clamping chuck 2 descends, the pressure relief valve 671 on the pressure relief pipe 67 will open and quickly discharge the excess compressed air in the rodless chamber 65, so that the balancing cylinder effectively supports the clamping chuck 2 and keeps the clamping chuck 2 in a balanced state at all times.

[0048] Based on the above examples, please refer to Figure 5 The balancing cylinder includes a cylinder body 61, a piston 62 and a cylinder rod 63; the cylinder body 61 has a chamber, the piston 62 is arranged in the chamber and forms a reciprocating dynamic seal with the inner wall of the chamber, and the piston 62 divides the chamber into a rod chamber 64 and a rodless chamber 65; the cylinder rod 63 is vertically arranged, the lower end of the cylinder rod 63 passes through the rod chamber 64 and is fixedly connected to the piston 62, the upper end of the cylinder rod 63 is fixedly connected to the clamping chuck 2, and the compressed air pressure in the rodless chamber 65 is converted into a supporting force for the clamping chuck 2 through the cylinder rod 63; at the same time, the rod chamber 64 is provided with a connecting port 641 connected to the external environment, to ensure that the air pressure in the rod chamber 64 is always consistent with the external environment and will not hinder the movement of the piston 62.

[0049] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 The rotating disk 3 is arranged on the end surface of the clamping chuck 2 facing away from the pipe support assembly, so as to facilitate the installation of the tool mounting seat 4; specifically, the rotating disk 3 and the clamping chuck 2 are preferably rotatably connected through a bearing.

[0050] Based on the above examples, please refer to Figure 1 , Figure 3 and Figure 4 A second movable seat 33 capable of moving along a second straight line direction is provided on the rotating disk 3, and the second movable seat 33 is connected to a third driving assembly 34 for driving it to move; a third movable seat 35 capable of moving along a first horizontal direction is provided on the second movable seat 33, and the third movable seat 35 is connected to a fourth driving assembly 36 for driving it to move; the tool mounting seat 4 is fixed on the third movable seat 35, and the movement of the second movable seat 33 can drive the tool 5 to move along the second straight line direction, and the movement of the third movable seat 35 can drive the tool 5 to move along the first horizontal direction, so that the relative position of the tool 5 in the radial and axial directions of the pipe 8 can be conveniently adjusted, so as to facilitate the processing of the groove of the pipe 8.

[0051] For details, please refer to Figure 1 , Figure 3 and Figure 4 The rotating disk 3 is provided with two second guide rails 37 extending along the second straight line direction, the second guide rails 37 are provided with a second slider capable of moving along the second guide rails, the second moving seat 33 is fixed on the second slider, and the third driving assembly 34 is preferably configured as a screw stepping motor, which can stably drive the second moving seat 33 to move along the second straight line direction; similarly, the second moving seat 33 is provided with a third guide rail 331 extending along the first horizontal direction, the third guide rail 331 is provided with a third slider capable of moving along the third guide rail, the third moving seat 35 is fixed on the third slider, and the fourth driving assembly 36 is preferably configured as a screw stepping motor, which can stably drive the third moving seat 35 to move along the first horizontal direction.

[0052] In this embodiment, please refer to Figure 1 , Figure 3 and Figure 4 The first drive assembly 22 and the second drive assembly 32 are preferably configured as motors; at the same time, a rotatable rotating slip ring 38 is provided on the rotating disk 3, and a rotating seat is provided on the rotating disk 3. The rotating slip ring 38 is rotatably connected to the rotating seat through a bearing, and the rotating axis of the rotating slip ring 38 is colinear with the axis of the rotating disk 3. The wire used to supply power to the motor can be fixed on the rotating slip ring 38. When the rotating disk 3 rotates at high speed, the wire can be prevented from being entangled.

[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A groove processing equipment for deep-sea oil and gas pipelines, characterized in that: include: A pipe support assembly, on which the pipe (8) can be placed along a first horizontal direction; A clamping chuck (2), the clamping chuck (2) being located at one end of the pipe support assembly along the first horizontal direction; the clamping chuck (2) being movable relative to the pipe support assembly along the first horizontal direction and the vertical direction; the clamping chuck (2) being provided with a first through hole, the axis of the clamping chuck (2) being parallel to the first horizontal direction and being located on the same vertical plane; the clamping chuck (2) being provided with a plurality of claws (21), the claws (21) being connected to a first driving assembly (22) for driving them to move radially along the clamping chuck (2); A rotating disk (3), the rotating disk (3) being rotatably disposed on the clamping chuck (2), the rotating disk (3) being provided with a second through hole (31); the axis of the rotating disk (3) being colinear with the axis of the clamping chuck (2), the rotating disk (3) being connected to a second driving assembly (32) for driving the rotating disk (3) to rotate; a tool mounting seat (4), the tool mounting seat (4) being arranged on the rotating disk (3), the tool mounting seat (4) being capable of moving relative to the rotating disk (3) along the first horizontal direction and a second linear direction, the second linear direction being perpendicular to the first horizontal direction; A tool (5), wherein the tool (5) is mounted on the tool mounting seat (4); A balancing component (6) is arranged at the bottom of the clamping chuck (2), and the balancing component (6) applies a supporting force to the clamping chuck (2) so that the clamping chuck (2) is always in a balanced state.

2. The deep sea oil and gas pipeline groove processing equipment according to claim 1, characterized in that: The invention comprises a base (7), wherein a first movable seat (71) is provided on the base (7), wherein the first movable seat (71) can move along the first horizontal direction, and the clamping chuck (2) is provided on the first movable seat (71) and can move in a vertical direction relative to the first movable seat (71).

3. The deep sea oil and gas pipeline groove processing equipment according to claim 2, characterized in that: The base (7) is provided with a first guide rail (72) extending along the first horizontal direction, the first guide rail (72) is provided with a first sliding block capable of moving along the first guide rail, and the first movable seat (71) is fixed on the first sliding block; And / or, a vertically arranged guide sleeve (711) is provided on the first movable seat (71), and a vertically arranged guide column (23) is provided on the clamping chuck (2), and the guide column (23) extends into the guide sleeve (711) and is loosely matched with the guide sleeve (711).

4. The deep sea oil and gas pipeline groove processing equipment according to claim 2, characterized in that: The balancing component (6) is configured as a balancing cylinder, the balancing cylinder having a rod chamber (64) and a rodless chamber (65), the rodless chamber (65) being connected to an air intake pipe (66) and a pressure relief pipe (67), the air intake pipe (66) being provided with a pressure control valve (661), and the pressure relief pipe (67) being provided with a pressure relief valve (671).

5. The deep sea oil and gas pipeline groove processing equipment according to claim 4, characterized in that: The balancing cylinder comprises a cylinder body (61), a piston (62) and a cylinder rod (63); the cylinder body (61) has a chamber, the piston (62) is arranged in the chamber and forms a reciprocating dynamic seal with the inner wall of the chamber, and the piston (62) divides the chamber into the rod chamber (64) and the rodless chamber (65); the cylinder rod (63) is vertically arranged, the lower end of the cylinder rod (63) passes through the rod chamber (64) and is fixedly connected to the piston (62), and the upper end of the cylinder rod (63) is fixedly connected to the clamping chuck (2); And / or, the rod cavity (64) is provided with a communication port (641) communicating with the external environment; And / or, one of the claws (21) is located directly above the first through hole and is movable in a vertical direction.

6. The deep sea oil and gas pipeline groove processing equipment according to claim 1, characterized in that: The pipeline support assembly comprises a plurality of V-shaped support seats (1) distributed along the first horizontal direction.

7. The deep sea oil and gas pipeline groove processing equipment according to claim 1, characterized in that: The projection of the pipeline (8) along the first horizontal direction completely passes through the first through hole and the second through hole (31); And / or, the axes of the first through hole and the second through hole (31) are both colinear with the axis of the clamping chuck (2); And / or, the rotating disk (3) and the clamping chuck (2) are rotatably connected via a bearing; And / or, the rotating disk (3) is arranged on the end surface of the clamping chuck (2) facing away from the pipe support assembly.

8. The deep sea oil and gas pipeline groove processing equipment according to claim 1, characterized in that: The rotating disk (3) is provided with a second movable seat (33) capable of moving along the second linear direction, and the second movable seat (33) is connected to a third driving component (34) for driving the second movable seat to move; the second movable seat (33) is provided with a third movable seat (35) capable of moving along the first horizontal direction, and the third movable seat (35) is connected to a fourth driving component (36) for driving the third movable seat to move; the tool mounting seat (4) is fixed on the third movable seat (35).

9. The deep sea oil and gas pipeline groove processing equipment according to claim 8, characterized in that: The rotating disk (3) is provided with a second guide rail (37) extending along the second straight line direction, the second guide rail (37) is provided with a second slider capable of moving along the second guide rail, and the second moving seat (33) is fixed on the second slider; the third driving component (34) is set as a screw stepping motor; And / or, the second movable seat (33) is provided with a third guide rail (331) extending along the first horizontal direction, the third guide rail (331) is provided with a third slider capable of moving along the third guide rail, and the third movable seat (35) is fixed on the third slider; and the fourth driving component (36) is configured as a screw stepping motor.

10. The deep sea oil and gas pipeline groove processing equipment according to claim 1, characterized in that: The first drive component (22) and the second drive component (32) are both configured as motors; And / or, a rotatable rotating slip ring (38) is provided on the rotating disk (3), and the rotating axis of the rotating slip ring (38) is colinear with the axis of the rotating disk (3).