Clamping device for mutual fixation between marine riser and submarine cable

Abstract

The utility model relates to a clamping device for mutual fixation between a marine riser and a submarine cable, the clamping device comprises a first clamping part and a second clamping part, when the first clamping part and the second clamping part are buckled, the marine riser and the submarine cable can be fixed together, so that the marine riser can be monitored in real time through the submarine cable. In addition, the first clamping part and the second clamping part are locked through a self-locking buckle and a first limiting table at a through hole. During dismounting, the first clamping part and the second clamping part are extruded to loosen the self-locking buckle, and the sliding block is pressed to enable the sliding block through hole in the sliding block to further extrude the self-locking buckle, so that the self-locking buckle is pulled out of the through hole during deformation, and the self-locking buckle has the advantage of being very convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the field of fixtures, and particularly to a clamping device for fixing an offshore riser and a submarine cable to each other. Background Art

[0002] The ocean contains rich mineral resources, including oil and gas resources, polymetallic nodules, cobalt-rich crusts, polymetallic sulfides, etc. In the process of ocean resource exploitation, the mineral resource transportation system is a very crucial link. After years of research and practice, the pipeline transportation system with an offshore riser as the core has gradually become the most mainstream transportation system in the ocean resource exploitation system.

[0003] As a key structure connecting the underwater production system and the floating platform on the water, when the offshore riser is in operation, it will be affected by various loads such as ocean environmental loads, floating platform movements, and fluid flow in the pipe, which may cause it to be damaged and fail easily. When damage to the riser occurs, if it is not discovered in time, it may cause huge economic losses to the ocean resource exploitation system and even threaten the lives of platform operators. Due to the complexity of the loads on the riser, it is often difficult to predict the damage to the riser. Therefore, it is necessary to monitor the riser in real time for a long time to ensure its stability during operation.

[0004] Optical fiber sensing submarine cables can be used in the field of structural safety monitoring of offshore risers. By using a clamping device to fix the riser and the cable to each other, information such as the vibration and strain of the riser can be collected in real time, so as to monitor the riser in real time. However, there is no clamping device in the prior art that is convenient for installing and disassembling and can fix the offshore riser and the submarine cable to each other. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a clamping device for fixing an offshore riser and a submarine cable to each other.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A clamping device for fixing an offshore riser and a submarine cable to each other in this application includes:

[0007] It includes a first clamping part and a second clamping part;

[0008] The first clamping part is provided with a first semi-circular pipe groove for clamping the offshore riser, a first semi-circular wire groove for clamping the submarine cable, and through holes are provided on both sides of the first semi-circular pipe groove and both sides of the first semi-circular wire groove; wherein, the submarine cable is used for monitoring the offshore riser in real time;

[0009] The second clamping part is provided with a second semi-circular pipe groove corresponding to the first semi-circular pipe groove, a second semi-circular wire groove corresponding to the first semi-circular wire groove, and self-locking buckles corresponding to the through holes;

[0010] One end of the through hole close to the self-locking buckle is provided with a first limiting platform, the other end of the through hole is provided with a second limiting platform, a slider is arranged in the through hole, and the first limiting platform and the second limiting platform limit the slider in the through hole;

[0011] A slider through hole for squeezing the self-locking buckle is arranged on the slider, and the axis of the slider through hole is collinear with the axis of the slider.

[0012] In an embodiment of the present application, the self-locking buckle includes a support column and an elastic sheet;

[0013] One end of the support column is fixedly connected to the second clamping portion, the other end of the support column is conical, and the elastic sheet is fixedly arranged on the conical surface at the other end of the support column.

[0014] In an embodiment of the present application, elastic material pads are arranged on the groove surfaces of the first semi-circular pipe groove, the first semi-circular wire groove, the second semi-circular pipe groove and the second semi-circular wire groove.

[0015] In an embodiment of the present application, the axis of the slider is collinear with the axis of the through hole, the outer diameter of the slider is equal to the inner diameter of the through hole, and the outer wall of the slider and the inner wall surface of the through hole are both smooth surfaces.

[0016] The beneficial effects of the present utility model: A clamping device for mutual fixation between a marine riser and a submarine cable in the present application includes a first clamping portion and a second clamping portion. When the first clamping portion is buckled with the second clamping portion, the marine riser and the submarine cable can be fixed together, so that the marine riser can be monitored in real time through the submarine cable. In addition, the present application locks the first clamping portion and the second clamping portion through the self-locking buckle and the first limiting platform at the through hole. When disassembling, by squeezing the first clamping portion and the second clamping portion, the self-locking buckle is loosened, and by pressing the slider, the slider through hole in the slider further squeezes the self-locking buckle, so that the self-locking buckle is pulled out of the through hole during deformation. The present application has the advantages of very convenient installation and disassembly. Description of the Drawings

[0017] Figure 1 It is a schematic structural cross-sectional view of a clamping device for mutual fixation between a marine riser and a submarine cable of the present utility model;

[0018] Figure 2 It is a schematic structural cross-sectional view of the first clamping portion and the slider in the present application;

[0019] Figure 3 It is a schematic structural cross-sectional view of the first clamping portion in the present application;

[0020] Figure 4Structural cross-sectional view of the second clamping part in this application

[0021] Figure 5 Structural cross-sectional view of the slider in this application;

[0022] In the figure,

[0023] 1 - Elastic material pad; 2 - Slider; 3 - Slider through-hole; 4 - First semi-circular pipe groove; 5 - Second semi-circular pipe groove; 6 - Second limiting platform; 7 - First clamping part; 8 - First semi-circular wire groove; 9 - Through-hole; 10 - First limiting platform; 11 - Second semi-circular wire groove; 12 - Elastic sheet; 13 - Support column; 14 - Second clamping part. Specific implementation mode

[0024] The following will illustrate the implementation mode of this application with reference to the drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be understood that the preferred embodiments are only for illustrating this application, rather than for limiting the protection scope of this application.

[0025] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of this application in a schematic manner. Therefore, only the components related to this application are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0026] Embodiment

[0027] As Figure 1 shown, a clamping device for fixing the marine riser and the submarine cable to each other in this application includes:

[0028] The first clamping part 7 and the second clamping part 14;

[0029] The first clamping part 7 is provided with a first semi-circular pipe groove 4 for clamping the marine riser and a first semi-circular wire groove 8 for clamping the submarine cable. Through-holes 9 are provided on both sides of the first semi-circular pipe groove 4 and both sides of the first semi-circular wire groove 8; among them, the submarine cable is used for real-time monitoring of the marine riser.

[0030] The second clamping part 14 is provided with a second semi-circular pipe groove 5 corresponding to the first semi-circular pipe groove 4, a second semi-circular wire groove 11 corresponding to the first semi-circular wire groove 8, and a self-locking buckle corresponding to the through hole 9; the self-locking buckle includes a support column 13 and a spring piece 12; one end of the support column 13 is fixedly connected to the second clamping part 14, the other end of the support column 13 is conical, and the spring piece 12 is fixedly arranged on the conical surface at the other end of the support column 13;

[0031] A first limiting platform 10 is provided at one end of the through hole 9 close to the self-locking buckle, a second limiting platform 6 is provided at the other end of the through hole, a sliding block 2 is arranged in the through hole 9, and the first limiting platform 10 and the second limiting platform 6 limit the sliding block 2 in the through hole 9;

[0032] The sliding block 2 is provided with a sliding block through hole 3 for extruding the self-locking buckle, and the axis of the sliding block through hole 3 is collinear with the axis of the sliding block 2.

[0033] When the spring piece 12 enters the through hole 9, it is squeezed by the first limiting platform 10 and contracts inward. After the spring piece 12 completely enters the through hole 9, it bounces outward and is stuck on the first limiting platform 10, so that the clamping device can clamp the pipeline and the submarine cable.

[0034] The bottom of the spring piece 12 is set as a horizontal structure, which can better contact and clamp with the first limiting platform 10. After the spring piece 12 is completely unfolded in the through hole 9, the side part can just be stuck on the inner wall of the through hole 9, so that the spring piece 12 will not bend upward due to the supporting force of the first limiting platform 10 during use.

[0035] The upper end of the support column 13 is conical and the lower end is cylindrical, which is convenient for the support column 13 to enter the through hole 9 and the sliding block through hole 13.

[0036] The thickness of the first limiting platform 10 is set so that the clamping force of the clamping device acting on the pipeline and the submarine cable is a fixed value.

[0037] The through hole 9 of the first clamping part 7 is set to be through front and back to prevent water from accumulating in the through hole 9 during underwater installation, resulting in installation failure. The shape of the through hole 9 is cylindrical.

[0038] Elastic material pads 1 are provided on the groove surfaces of the first semi-circular pipe groove 4, the first semi-circular wire groove 8, the second semi-circular pipe groove 5 and the second semi-circular wire groove 11. During the installation and removal of the clamping device, the elastic material pads 1 can play a buffering role to prevent damage to the riser pipe and the submarine cable during the installation and removal of the clamping device.

[0039] The axis of the sliding block 2 is collinear with the axis of the through hole 9, the outer diameter of the sliding block 2 is equal to the inner diameter of the through hole 9, and the outer wall of the sliding block 2 and the inner wall surface of the through hole 9 are both smooth surfaces. Thus, the friction force is reduced.

[0040] The diameter of the slider through-hole 13 is smaller than that of the through-hole 9, facilitating the withdrawal of the elastic piece 12 from the through-hole 9 after contraction.

[0041] The present application also provides a method for using a clamping device for fixing an offshore riser and a submarine cable to each other, including:

[0042] When clamping the offshore riser and the submarine cable, the first clamping portion 7 and the second clamping portion 14 are buckled, and the self-locking buckle enters the through-hole 9 and locks with the first limiting platform 10, so that the offshore riser is clamped between the first semi-circular pipe groove 4 and the second semi-circular pipe groove 5, and the submarine cable is clamped between the first semi-circular wire groove 8 and the second semi-circular wire groove 11, wherein the submarine cable is used for real-time monitoring of the offshore riser;

[0043] When disassembling, the first clamping portion 7 and the second clamping portion 14 are squeezed to loosen the self-locking buckle, and the slider 2 is pushed so that the end of the self-locking buckle of the second clamping portion 14 enters the slider through-hole 3, and the slider 2 is continuously pushed to deform the self-locking buckle, and then the first clamping portion 7 and the second clamping portion 14 are pulled outwards, so that the self-locking buckle is disengaged from the first clamping portion 7.

[0044] Specifically, when the device is in use, the pipeline and the submarine cable are respectively placed in the large circular groove (formed by the first semi-circular pipe groove 4 and the second semi-circular pipe groove 5) and the small circular groove (formed by the first semi-circular wire groove 8 and the second semi-circular wire groove 11), and each support column 13 of the second clamping portion 14 is inserted into the corresponding through-hole 9 of the first clamping portion 7. During the process of the support column 13 entering the through-hole 9, it first passes through the first limiting platform 10. At this time, the elastic piece 12 installed on the support column 13 is elastically contracted inward under the extrusion of the inner wall of the first limiting platform 10. After the elastic piece 12 passes through the first limiting platform 10 and enters the through-hole 9, the elastic piece 12 springs open to both sides, the bottom is clamped tightly on the first limiting platform 11, and the side is clamped on the inner wall of the through-hole 9. At this time, the clamping device clamps both the pipeline and the submarine cable tightly.

[0045] When the device is disassembled, the first clamping part 7 and the second clamping part 14 are respectively squeezed from the outside. At this time, the elastic material pad 1 undergoes elastic deformation, and a gap appears between the elastic piece 12 and the first limiting platform 10. The slider 2 is pushed towards the support column 13, so that the support column 13 gradually enters the slider through-hole 3, and the elastic piece 12 is squeezed inward and contracted by the inner wall of the slider 2. The slider 2 is continuously pushed so that the bottom of the slider contacts the first limiting platform 10. At this time, the elastic piece 12 has completely contracted inside the slider through-hole 3. A continuous thrust is applied to the slider 2 to keep the slider 2 in contact with the first limiting platform 10, and at the same time, the external squeezing force is removed. Then, the first clamping part 7 and the second clamping part 14 are pulled outwards simultaneously. At this time, the first clamping part 7 and the second clamping part 14 can be completely separated, and the pipeline and the submarine cable can also be removed from the fixture.

[0046] A clamping device for mutual fixation between a marine riser and a submarine cable in the present application includes a first clamping part and a second clamping part. When the first clamping part is buckled with the second clamping part, the marine riser and the submarine cable can be fixed together, so that the marine riser can be monitored in real time through the submarine cable. In addition, the present application locks the first clamping part and the second clamping part through a self-locking buckle and a first limiting platform at the through hole. When disassembling, by squeezing the first clamping part and the second clamping part, the self-locking buckle is loosened, and by pressing the slider, the slider through hole in the slider further squeezes the self-locking buckle, so as to pull out the self-locking buckle from the through hole when it deforms. The present application has the advantages of being very convenient for both installation and disassembly.

[0047] The above embodiments are only preferred embodiments cited to fully illustrate the present application, and the protection scope of the present application is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present application are within the protection scope of the present application.

Claims

1. A clamping device for fixing a marine riser and a submarine cable to each other, characterized in that: It comprises a first clamping portion (7) and a second clamping portion (14); The first clamping portion (7) is provided with a first semicircular tube groove (4) for clamping the marine riser and a first semicircular wire groove (8) for clamping the submarine cable, and through holes (9) are provided on both sides of the first semicircular tube groove (4) and both sides of the first semicircular wire groove (8); wherein the submarine cable is used for real-time monitoring of the marine riser; The second clamping portion (14) is provided with a second semicircular tube groove (5) corresponding to the first semicircular tube groove (4), a second semicircular wire groove (11) corresponding to the first semicircular wire groove (8), and a self-locking buckle corresponding to the through hole (9); A first limiting platform (10) is provided at one end of the through hole (9) close to the self-locking buckle, and a second limiting platform (6) is provided at the other end of the through hole. A slider (2) is provided in the through hole (9), and the first limiting platform (10) and the second limiting platform (6) limit the slider (2) in the through hole (9); The slider (2) is provided with a slider through hole (3) for squeezing the self-locking buckle, and the axis of the slider through hole (3) is colinear with the axis of the slider (2).

2. A clamping device for fixing a marine riser and a submarine cable to each other according to claim 1, characterized in that: The self-locking buckle comprises a support column (13) and a spring sheet (12); One end of the support column (13) is fixedly connected to the second clamping portion (14); the other end of the support column (13) is conical; and the spring sheet (12) is fixedly arranged on the conical surface of the other end of the support column (13).

3. A clamping device for fixing a marine riser and a submarine cable to each other according to claim 1, characterized in that: The groove surface of the first semicircular tube groove (4), the groove surface of the first semicircular wire groove (8), the groove surface of the second semicircular tube groove (5) and the groove surface of the second semicircular wire groove (11) are all provided with elastic material pads (1).

4. A clamping device for fixing a marine riser and a submarine cable to each other according to claim 1, characterized in that: The axis of the slider (2) is colinear with the axis of the through hole (9), the outer diameter of the slider (2) is equal to the inner diameter of the through hole (9), and the outer wall of the slider (2) and the inner wall of the through hole (9) are both smooth surfaces.

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