Deep sea pipeline connector

Abstract

The utility model discloses a deep sea pipeline connector which comprises a connector body, the connector body comprises a connecting pipe, a mounting assembly located at the end of the connecting pipe and a fastening assembly, and a subsea pipeline to be maintained is in butt joint with the end of the connecting pipe after being inserted into the mounting assembly and axially pressed through the fastening assembly; a mounting frame, wherein the mounting frame is detachably connected with the connector body; and the driving part drives the mounting frame to move in the direction close to or away from the connector body. When a deep-sea pipeline is broken or damaged, the pipeline can be quickly connected, and the connector can be separated and recycled, so that the cost of consumables is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater construction equipment, in particular to a deep-sea pipeline connector. Background Art

[0002] With the development of marine technology, deep-sea pipelines play an increasingly important role in marine engineering. Deep-sea pipelines are widely used in the fields of special transportation and fluid transportation. During use, there are many reasons that may cause pipeline damage. For example, due to long-term exposure to seawater and other corrosive environments, the pipeline may be corroded and worn, affecting its structural integrity and function; at the same time, submarine earthquakes, landslides, anchoring accidents or other underwater activities may cause external impacts on the pipeline, causing damage or rupture; and long-term exposure to pressure and temperature changes, as well as dynamic loads such as ocean currents, may cause pipeline material fatigue, thereby causing cracks or fractures.

[0003] However, the existing connectors used for pipeline maintenance are of an integral structure. After the maintenance is completed, the entire device can only be left on the seabed, and the connector cannot be separated or partially recovered, and the cost of consumables is high. Utility Model Content

[0004] The purpose of the utility model is to provide a deep-sea pipeline connector used in pipeline maintenance, so that when the deep-sea pipeline is broken or damaged, the pipelines at both ends can be quickly connected, and the connector can be separated and recycled to reduce the cost of consumables. This purpose is achieved through the following technical solutions:

[0005] The utility model provides a deep-sea pipeline connector, comprising:

[0006] A connector body, the connector body comprising a connecting pipe, a mounting assembly located at the end of the connecting pipe, and a fastening assembly, the sea pipe to be repaired is inserted into the mounting assembly and docked with the end of the connecting pipe, and is axially compressed by the fastening assembly;

[0007] A mounting frame, the mounting frame being detachably connected to the connector body;

[0008] A driving component drives the mounting frame to move toward or away from the connector body.

[0009] During operation, after the connector is sent underwater, the connector body is inserted into the port of the pipeline to be repaired, and the sea pipe to be repaired is fixed in the axial and radial directions by the fastening assembly and the installation assembly, so that the sea pipe to be repaired is docked with the connecting pipe of the connector, and the connecting pipe is used as a replacement pipeline for the sea pipe to complete the sea pipe repair; after this process is completed, since the installation frame and the connector body are detachably connected, the two can be separated, so that the connector body is separated as the main part and the frame part, so that the main part is retained on the bottom of the water alone as a part of the pipeline, and the frame part can be separated and recycled to reduce the consumables cost of the connector. In this way, when the deep-sea pipeline is broken or damaged, the deep-sea pipeline connector can quickly connect the pipelines at both ends, and can realize the separation and recycling of the connector to reduce the consumables cost.

[0010] In some embodiments, the mounting assembly includes:

[0011] A sleeve is arranged at the end of the connecting pipe, and a containing space is provided in the sleeve. After the sea pipe to be repaired is inserted into the containing space, it is butt-jointed with the end of the connecting pipe.

[0012] In some embodiments, the mounting assembly further comprises:

[0013] The slips are arranged in the accommodating space and radially hold the sea pipe to be repaired.

[0014] In some embodiments, the mounting assembly further comprises:

[0015] A pressing ring, the pressing ring is arranged in the sleeve, and the fastening assembly abuts against the outer end of the pressing ring;

[0016] A sealing ring is fixed between the pressure ring and the slip.

[0017] In some embodiments, the fastening assembly comprises:

[0018] A flange, the flange being mounted on the outer periphery of the sleeve;

[0019] The flange pressure plate is connected to the flange plate by bolts and abuts against the outer end of the pressure ring.

[0020] In some embodiments, the fastening assembly further includes a tensioner, which is mounted on the bolt and axially presses the flange and the flange pressure plate.

[0021] In some embodiments, the mounting frame comprises:

[0022] A main frame, on which a motor, an electro-hydraulic servo system and an operation panel are installed;

[0023] A positioning assembly, the positioning assembly is installed on the main frame and cooperates with the positioning structure on the catheter frame;

[0024] A supporting leg is installed on the main frame and is drivingly connected to the driving component.

[0025] In some embodiments, the positioning assembly is divided into two groups, and the two positioning assemblies are respectively arranged on both sides of the main frame; the positioning assembly includes:

[0026] A positioning arm, the positioning arm is installed on the side of the main frame;

[0027] A positioning pin is inserted into a positioning hole of the catheter frame.

[0028] In some embodiments, a fixing column is also installed on the main frame.

[0029] In some embodiments, the driving component is a moving trolley installed on the catheter frame, and the supporting legs are detachably connected to the moving trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0031] Figure 1 One of the structural diagrams of a deep-sea pipeline connector according to an embodiment of the utility model is schematically shown;

[0032] Figure 2 The second structural diagram of the deep-sea pipeline connector according to the embodiment of the utility model is schematically shown;

[0033] Figure 3 The third structural diagram of the deep-sea pipeline connector according to the embodiment of the utility model is schematically shown;

[0034] Figure 4 The fourth structural diagram of the deep-sea pipeline connector according to the embodiment of the utility model is schematically shown;

[0035] Figure 5 The fifth structural diagram of the deep-sea pipeline connector according to the embodiment of the utility model is schematically shown;

[0036] Figure 6 for Figure 1 A cross-sectional view of a deep-sea pipeline connector is shown in FIG.

[0037] The reference numerals are as follows:

[0038] 1- Connector body;

[0039] 11-connecting pipe, 12-sleeve, 13-slip, 14-pressure ring, 15-sealing ring, 16-flange, 17-flange pressure plate;

[0040] 18-Stretcher;

[0041] 2- Install the frame;

[0042] 21-main frame, 22-electro-hydraulic servo system, 23-operation panel, 24-positioning arm, 25-positioning pin, 26-supporting leg; 27-fixing column. DETAILED DESCRIPTION

[0043] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0045] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0046] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0047] In order to solve the problems existing in the prior art, the utility model provides a deep-sea pipeline connector, which can quickly and effectively connect the severed pipeline after the damaged pipeline on the seabed is cut off, ensuring the continuity and sealing of the pipeline and having a sufficient life to ensure the continuous use of the pipeline; and after the sea pipeline is connected, its installation frame 2 can be recycled and reused, with good economic performance.

[0048] Please refer to Figure 1-Figure 6 The deep-sea pipeline connector provided by the utility model includes a connector body 1, a mounting frame 2 and a driving component; wherein the connector body 1 is the main part of the deep-sea pipeline connector, and the connector body 1 includes a connecting pipe 11 for inserting the submarine pipeline to be repaired, a mounting assembly located at the end of the connecting pipe 11, and a fastening assembly, wherein the mounting assembly is located at the end of the connecting pipe 11 and is used to dock with the submarine pipeline to be repaired, and the submarine pipeline to be repaired docks with the end of the connecting pipe 11 after being inserted into the mounting assembly, and is axially compressed by the fastening assembly, and the fastening assembly is used for axial compression to ensure the firmness of the connection. The mounting frame 2 is detachably connected to the connector body 1 and is used to fix or support the connector; the driving component drives the mounting frame 2 to move in a direction close to or away from the connector body 1.

[0049] The main materials of deep-sea pipeline connectors include high-strength alloy steel, corrosion-resistant alloys, and rubber. For example, high-strength alloy steel is selected as the main material of the connector, and its mechanical properties such as yield strength and tensile strength meet the specified standards. The connector needs to have a long service life to meet the overall life cycle requirements of the pipeline. Generally, the service life of the connector is required to be greater than or equal to 20 years. During operation, the connector must be able to maintain a seal under various environmental conditions to prevent leakage of internal fluids, which requires the seal to have good tensile strength and acid and alkali corrosion resistance. The connector needs to withstand the pressure of the internal fluid and possible external impacts.

[0050] During operation, after the connector is sent underwater, the connector body 1 is inserted into the port of the pipeline to be repaired, and the sea pipe to be repaired is fixed in the axial and radial directions by the fastening assembly and the installation assembly, so that the sea pipe to be repaired is docked with the connecting pipe 11 of the connector, and the connecting pipe 11 is used as a replacement pipeline for the sea pipe to complete the sea pipe repair; after this process is completed, since the installation frame 2 and the connector body 1 are detachably connected, the two can be separated, so that the connector body 1 is separated as the main part and the frame part, so that the main part is retained on the bottom of the water alone as a part of the pipeline, and the frame part can be separated and recycled to reduce the consumables cost of the connector. In this way, when the deep-sea pipeline is broken or damaged, the deep-sea pipeline connector can quickly connect the pipelines at both ends, and can realize the separation and recycling of the connector to reduce the consumables cost.

[0051] Specifically, the installation assembly includes a sleeve 12, which is arranged at the end of the connecting pipe 11. The sleeve 12 has a containing space inside. The sea pipe to be repaired is inserted into the containing space and docked with the end of the connecting pipe 11. The sleeve 12 is arranged at the end of the connecting pipe 11 as an interface between the connector and the sea pipe to be repaired; the sleeve 12 has a containing space inside, which is designed to accommodate the submarine pipeline to be repaired. The size and shape of the containing space need to match the outer diameter of the pipeline to be repaired to ensure that the pipeline can be smoothly inserted; the aperture of the sleeve 12 is larger than the outer diameter of the connecting pipe 11 to ensure that the sea pipe to be repaired can be against the end of the connecting pipe 11 after insertion, and the end docking is achieved. The design of this sleeve 12 allows the connector to achieve fast and reliable docking with the submarine pipeline to be repaired. Through the precise matching of the inner diameter of the sleeve 12 and the outer diameter of the pipeline, as well as appropriate sealing and locking mechanisms, it can be ensured that no leakage or other safety problems will occur during the repair process.

[0052] Furthermore, the installation assembly also includes a slip 13, which is arranged in the accommodation space and radially clamps the sea pipe to be repaired. The slip 13 is used as a clamping member. In theory, a clamp or a clamp can also be used to replace the slip 13. Taking the slip 13 as an example, the slip 13 is arranged in the accommodation space inside the sleeve 12 and directly contacts the seabed pipeline to be repaired. Its main function is to clamp the sea pipe to be repaired in the radial direction. When the sea pipe is inserted into the accommodation space of the sleeve 12, the slip 13 can fix the pipeline by mechanical expansion, hydraulic drive or spring loading to prevent it from sliding or rotating. The design and material of the slip 13 must be able to withstand the pressure and corrosion in the seabed environment, while providing sufficient clamping force to ensure the stability of the pipeline, which is crucial to the safety and efficiency of the maintenance operation. It should be understood that the role of the slip 13 is to provide additional safety between the pipeline and the connector. Through radial clamping, the slip 13 can help disperse the pressure on the pipeline and reduce the displacement of the pipeline caused by external pressure or vibration. In addition, the use of the slip 13 also simplifies the connection process. Since the slip 13 can automatically adapt to pipelines of different diameters, the versatility and flexibility of the connector are improved.

[0053] Furthermore, the installation assembly further includes a pressing ring 14 and a sealing ring 15; wherein the pressing ring 14 is arranged in the sleeve 12, and the fastening assembly abuts against the outer end of the pressing ring 14, and the sealing ring 15 is fixed between the pressing ring 14 and the slip 13. Specifically, the pressing ring 14 is arranged inside the sleeve 12, located above the slip 13, and the main function of the pressing ring 14 is to serve as the action point of the fastening assembly. When the fastening assembly (such as a bolt, nut or other fastening device) is activated, it abuts against the outer end of the pressing ring 14, exerting pressure on the pressing ring 14, and the pressure is transmitted to the sealing ring 15 and slip 13 below through the pressing ring 14, thereby achieving axial compression of the sea pipe to be repaired. The sealing ring 15 is fixed between the pressing ring 14 and the slip 13, and is located on the periphery of the sea pipe to be repaired to ensure the sealing of the connection part and prevent seawater or other substances from penetrating into the connection. In the submarine environment, the material and design of the sealing ring 15 must be able to withstand high pressure, corrosion and temperature changes, while maintaining a long-term sealing effect. This is critical to ensuring the integrity and safety of the pipeline system.

[0054] In principle, the sealing principle of deep-sea marine pipeline connection equipment mainly relies on mechanical pressure to promote elastic deformation of the material and generate contact stress with the contact material exceeding the target sealing pressure to achieve the purpose of sealing. Whenever the connector applies pressure through the tensioner 18, this pressure will be quickly and forcefully transmitted to the slip 13 and the sealing ring 15. After being affected by external pressure, the sealing ring 15 will produce a certain degree of deformation, and then form a certain contact stress on the outer wall of the pipeline, thereby preventing the internal fluid from leaking out of the pipeline connection system through the contact surface between the sealing ring 15 and the pipe wall. To meet the requirements of this kind of sealing principle, the material of the sealing ring 15 should have good elasticity, pressure resistance and corrosion resistance to ensure that a sufficient seal can be formed in the extremely severe deep-sea high-pressure environment.

[0055] In the selection of materials for sealing components, rubber with excellent elasticity and corrosion resistance is usually given priority. The superior properties of this type of superelastic material can ensure that the sealing function of the connector can be fully utilized. For sealing components that need to withstand relatively high pressure or face large temperature changes, it is recommended to use rubber materials such as fluororubber or silicone rubber with better high temperature resistance and acid and alkali resistance.

[0056] Fluororubber has excellent oil resistance, chemical corrosion resistance and high temperature resistance, and is one of the ideal choices for deep-sea connector sealing. It can maintain stable performance in the temperature range of -20℃ to +200℃, and has a tensile strength of more than 10Mpa and an elongation at break of more than 140%, which can meet the requirements of large deformation in the sealing cavity without breaking. Fluororubber also has good aging resistance and can maintain the sealing effect in long-term use in the marine environment.

[0057] The sealing structure design of the deep-sea pipeline connector needs to fully consider the stress conditions and deformation characteristics of the sealing ring 15. Generally speaking, the structure of the sealing ring 15 should be as simple and compact as possible to facilitate installation and replacement. At the same time, the inner and outer sides of the sealing ring 15 should be designed with different slopes or curved surfaces or corresponding chamfers so that they can better fit the outer wall of the pipeline and the inner wall of the connector when under pressure. In order to better test the seal, a sealing test channel is designed, and the sealing effect of the connector can be tested during the installation process and the test acceptance process. Pressurize the hydraulic oil channel through the test oil filling port to allow the hydrostatic pressure to fill the space between the two sealing rings 15. If the sealing system functions normally, there is no pressure drop.

[0058] In some embodiments, please refer to Figure 1-Figure 6The fastening assembly includes a flange 16 and a flange pressure plate 17. The flange 16 is installed on the outer periphery of the sleeve 12; the flange pressure plate 17 is connected to the flange 16 by bolts and abuts against the outer end of the pressure ring 14. The flange 16 is installed on the outer periphery of the sleeve 12 and is closely connected to the sleeve 12. The flange 16 includes a series of bolt holes for connecting with the flange pressure plate 17. The flange pressure plate 17 is located above the flange 16 and is connected to the flange 16 by bolts. The flange pressure plate 17 is a moving part of the fastening assembly. When the bolts are tightened, the flange pressure plate 17 moves downward and abuts against the outer end of the pressure ring 14. The pressure generated by this movement is transmitted to the sealing ring 15 and the slip 13 through the pressure ring 14, thereby realizing axial compression of the sea pipe to be repaired. The flange 16 and the flange pressure plate 17 together constitute the core part of the fastening assembly. They realize axial compression of the sea pipe to be repaired by tightening the bolts, thereby ensuring the firmness and sealing of the connection.

[0059] Furthermore, the fastening assembly further includes a tensioner 18, which is mounted on the bolt and axially compresses the flange 16 and the flange pressure plate 17. The tensioner 18 is mounted on the bolt and is located between the flange 16 and the flange pressure plate 17. The tensioner 18 axially compresses the flange 16 and the flange pressure plate 17 by stretching the bolt, thereby generating sufficient pressure between the flange 16 and the flange pressure plate 17 to ensure the firmness of the connection. In a high-pressure environment such as submarine pipeline maintenance, the tensioner 18 applies force mechanically or hydraulically, which can more accurately control the tension of the bolt, thereby ensuring the stability and safety of the connection.

[0060] During use, the connector body 1 of the deep-sea pipeline connector is inserted into the cut pipeline port, and the tensioner 18 is used to tighten the fixed flange 16 and the flange pressure plate 17 of the connector, so that the slip 13 clamps the pipeline to prevent the pipeline from falling out; at the same time, the built-in rubber sealing ring 15 is squeezed to cause it to deform radially toward the pipeline, thereby forming a reliable seal between the pipeline and the connector; finally, by tightening the nut, the tension of the bolt is maintained to ensure the stability of the connection.

[0061] In some embodiments, please refer to Figure 1-Figure 6 The mounting frame 2 includes a main frame body 21, a positioning assembly and a support leg 26; wherein, a motor, an electro-hydraulic servo system 22 and an operation panel 23 are installed on the main frame body 21, the positioning assembly is installed on the main frame body 21, and cooperates with the positioning structure on the catheter frame; the support leg 26 is installed on the main frame body 21, and is transmission-connected to the driving component.

[0062] Specifically, the main frame 21 is the basic structure of the installation frame 2 and provides support for other components. A motor, an electro-hydraulic servo system 22 and an operation panel 23 are installed on the main frame 21. These components work together to provide power and control for the installation frame 2. The operator controls the operation of the entire installation frame 2 through the operation panel 23.

[0063] The positioning assembly cooperates with the positioning structure on the conductor frame to ensure that the mounting frame 2 can be accurately aligned and fixed on the conductor frame. In operations such as submarine pipeline maintenance, accurate positioning is crucial to ensuring the safety and efficiency of the operation. The support legs 26 are installed on the main frame body 21 and are connected to the driving components to provide additional support and stability. At the same time, they may participate in the movement of the driving components to adjust the position and posture of the mounting frame 2.

[0064] Furthermore, the positioning assembly is divided into two groups, and the two positioning assemblies are respectively arranged on both sides of the main frame body 21. Such a symmetrical design helps to ensure the balance and stability of the installation frame 2 on the conductor frame. The positioning assembly includes a positioning arm 25 and a positioning pin 25; wherein the positioning arm 25 is installed on the side of the main frame, and the positioning pin 25 is inserted into the positioning hole of the conductor frame. Specifically, the positioning arm 25 is installed on the side of the main frame to provide an interface that can be matched with the positioning structure on the conductor frame; the positioning pin 25 is inserted into the positioning hole of the conductor frame to accurately position the installation frame 2, and the design and size of the positioning pin 25 must match the positioning hole on the conductor frame to ensure accurate docking and fixation. The positioning arm 25 and the positioning pin 25 work together to ensure that the installation frame 2 can be accurately positioned and fixed on the conductor frame, so as to realize fast and reliable pipeline maintenance operations in a submarine environment, while reducing the safety risks caused by inaccurate positioning.

[0065] Furthermore, a fixing column 27 is installed on the main frame body 21, and the fixing column 27 can serve as a fixing point of the main frame body 21 to increase the stability and rigidity of the entire structure, which is crucial for resisting external forces in the seabed environment (such as water currents, waves, etc.); and the fixing column 27 can also be used to provide positioning and guiding functions during the installation process to help ensure that the installation frame 2 is correctly placed on the conductor frame.

[0066] In some embodiments, the driving component is a mobile trolley installed on the jacket (not shown in the figure), and the support leg 26 is detachably connected to the mobile trolley. In the prior art, the mobile trolley can move on the jacket, which is very beneficial for adjusting the position and posture of the mounting frame 2. In the submarine pipeline maintenance operation, the mobile trolley is used as a driving component to quickly move the connector to the target position, ensuring the positioning and withdrawal of the connector. In addition, the detachable connection between the support leg 26 and the mobile trolley allows the two to be quickly separated, ensuring the safety and efficiency of the maintenance operation.

[0067] Specifically, the mounting frame 2 can provide the function of fixing the connector during the connector diving process, and the connector and its frame can perform full ROV operations; during the connector installation process, it must be ensured that it can be accurately centered and the pipe can be inserted to a predetermined depth. At the same time, the connector mounting frame 2 needs to drive the motor frame to help tighten the nut of the tensioner 18; a guide groove needs to be designed on the top of the connector to ensure that there is a certain amount of offset space for the pipe alignment, and the overall frame can move in four directions in the plane except vertical movement for centering; the electro-hydraulic control system on the frame can accurately observe and control the motor of the motor frame to perform the locking operation of the tensioner 18.

[0068] The installation frame 2 has a motor frame, which can be pre-installed on land and fixed together with the connector. During the installation process, the motor provides sufficient torque to lock the nut of the tensioner 18; the electro-hydraulic servo system 22 in the installation frame 2 is composed of a compensator, an electric control box, an underwater wet plug-in hydraulic connector, an underwater wet plug-in electrical connector, an ROV wrench ball valve, etc. The ROV controls the hydraulic oil circuit switch and cooperates with the land communication signal to control the solenoid valve to drive the hydraulic motor to lock the nut of the tensioner 18. The installation frame 2 has a positioning arm 25 and a movable support leg 26. The trolley of the guide frame can be connected to the movable support plate to push the frame to move to complete the centering and insert the pipe. The installation frame 2 has a connector fixing column 27, which can fix the deep-sea pipeline connector and provide support. After the installation is completed, the ROV removes the pipeline connector fixing pin and exits the frame to ensure that the frame is detached from the pipeline connector.

[0069] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A deep-sea pipeline connector, characterized in that: include: A connector body, the connector body comprising a connecting pipe, a mounting assembly located at the end of the connecting pipe, and a fastening assembly, the sea pipe to be repaired is inserted into the mounting assembly and docked with the end of the connecting pipe, and is axially compressed by the fastening assembly; A mounting frame, the mounting frame being detachably connected to the connector body; A driving component drives the mounting frame to move toward or away from the connector body.

2. The deep sea pipeline connector according to claim 1, characterized in that: The installation assembly includes: A sleeve is arranged at the end of the connecting pipe, and a containing space is provided in the sleeve. After the sea pipe to be repaired is inserted into the containing space, it is butt-jointed with the end of the connecting pipe.

3. The deep sea pipeline connector according to claim 2, characterized in that: The installation assembly also includes: The slips are arranged in the accommodating space and radially hold the sea pipe to be repaired.

4. The deep sea pipeline connector according to claim 3, characterized in that: The installation assembly also includes: A pressing ring, the pressing ring is arranged in the sleeve, and the fastening assembly abuts against the outer end of the pressing ring; A sealing ring is fixed between the pressure ring and the slip.

5. The deep sea pipeline connector according to claim 4, characterized in that: The fastening assembly comprises: A flange, the flange being mounted on the outer periphery of the sleeve; The flange pressure plate is connected to the flange plate by bolts and abuts against the outer end of the pressure ring.

6. The deep sea pipeline connector according to claim 5, characterized in that: The fastening assembly also includes a tensioner, which is installed on the bolt and axially presses the flange and the flange pressure plate.

7. The deep-sea pipeline connector according to any one of claims 1 to 6, characterized in that: The mounting frame comprises: A main frame, on which a motor, an electro-hydraulic servo system and an operation panel are installed; A positioning assembly, the positioning assembly is installed on the main frame and cooperates with the positioning structure on the catheter frame; A supporting leg is installed on the main frame and is drivingly connected to the driving component.

8. The deep sea pipeline connector according to claim 7, characterized in that: The positioning components are divided into two groups, and the two positioning components are respectively arranged on both sides of the main frame; the positioning components include: A positioning arm, the positioning arm is installed on the side of the main frame; A positioning pin is inserted into a positioning hole of the catheter frame.

9. The deep sea pipeline connector according to claim 7, characterized in that: A fixing column is also installed on the main frame.

10. The deep sea pipeline connector according to claim 7, characterized in that: The driving component is a moving trolley installed on the catheter frame, and the supporting legs are detachably connected to the moving trolley.

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