Zero-gravity dynamic submarine cable monitoring clamp

Abstract

The application discloses a zero-gravity dynamic submarine cable monitoring clamp and relates to the technical field of submarine cable monitoring.The zero-gravity dynamic submarine cable monitoring clamp comprises support groups, and each support group comprises two titanium alloy support frames, each titanium alloy support frame comprises a fixed part and a clamping part, a pin shaft is arranged between the clamping part and the fixed part, an ROV operating handle is arranged between the two oppositely arranged titanium alloy support frames through an ROV operating handle connecting hole, a clamp shell is arranged between the two oppositely arranged titanium alloy support frames through a clamp shell connecting hole, and a clamp spring is arranged between the two oppositely arranged titanium alloy support frames through a clamp spring connecting hole; and a monitoring sensor is detachably arranged on the clamping part through bolts.The fixed part and the clamping part are arranged, the submarine cable bears little, is suitable for a wide pipe diameter, and is convenient to install, installation monitoring can be completed through cooperation of the ROV operating handle and the ROV, construction cost is saved, and effective support is provided for state monitoring of the submarine cable.

Description

Technical Field

[0001] This invention relates to the field of submarine cable monitoring technology, and more specifically to a zero-gravity dynamic submarine cable monitoring fixture. Background Technology

[0002] During installation and operation in the subsea environment, cables are subjected to a variety of environmental loads. Changes in surrounding sea conditions, temperature, and produced fluid flow rate can all lead to fatigue loads on the cables. Without monitoring and effective management, this can result in cable damage and reduced fatigue life. To ensure the safety of marine cables in place, cable monitoring clamps must be installed to effectively monitor their movement.

[0003] Currently, traditional monitoring clamps are heavy, creating additional loads on submarine cables and easily leading to cable damage. Furthermore, traditional monitoring clamps use bolted connections and often employ rounded inner mating surfaces, making assembly with ROVs difficult, and the range of compatible submarine cable outer diameters for a single clamp model is also relatively small.

[0004] Therefore, how to provide a zero-gravity dynamic submarine cable monitoring fixture that puts little burden on the submarine cable, is applicable to a wide range of pipe diameters, and is easy to install is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a zero-gravity dynamic submarine cable monitoring fixture, which aims to solve one of the problems in the above-mentioned background technology, with low load on submarine cables, wide applicability to pipe diameters and easy installation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A zero-gravity dynamic submarine cable monitoring fixture includes:

[0008] The support assembly comprises two sets of support assemblies arranged at intervals relative to each other. Each support assembly includes two titanium alloy support frames, with the two titanium alloy support frames on the same side arranged crosswise. Each titanium alloy support frame includes a fixing part and a clamping part, with a pin connecting the clamping part and the fixing part. The two titanium alloy support frames on the same side are hinged together by the pin. The fixing part is provided with an ROV operating handle connection hole, and an ROV operating handle is connected between the two titanium alloy support frames arranged opposite each other through the ROV operating handle connection hole. The clamping part is provided with multiple clamp housing connection holes at intervals, and a clamp housing is connected between the two titanium alloy support frames arranged opposite each other through the clamp housing connection holes. The fixing part is provided with a clamp spring connection hole, and a clamp spring is connected between the two titanium alloy support frames arranged opposite each other through the clamp spring connection hole.

[0009] A monitoring sensor is detachably mounted on the clamping part by bolts.

[0010] Furthermore, it also includes a buoyancy module, which is detachably mounted on the clamp spring by bolts, and the buoyancy module is located between the clamp spring and the monitoring sensor.

[0011] Furthermore, a clamping pad is provided on the clamp housing, and multiple clamping pads are provided at intervals, with each clamping pad having two ends in contact with two oppositely arranged titanium alloy support frames.

[0012] Furthermore, the clamp pads are cylindrical, and each clamp pad has two sides located on both sides of the clamp housing. The volume of the clamp pads on the side of the clamp housing that is far apart from each other is greater than the volume of the clamp pads on the side of the clamp housing that is close to each other.

[0013] Furthermore, each of the titanium alloy support frames has multiple weight-reducing holes spaced apart in its clamping portion.

[0014] Furthermore, the spline curves of the two fixing parts located on the same side are clamp-shaped, and the two clamping parts located on the same side are also clamp-shaped.

[0015] Furthermore, the ROV operating handle is detachably connected to two opposing titanium alloy support frames via bolts.

[0016] Furthermore, the fixture housing is detachably connected to the two opposing titanium alloy support frames by bolts.

[0017] Furthermore, the clamp spring is detachably connected to the two oppositely arranged titanium alloy support frames by bolts.

[0018] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a zero-gravity dynamic submarine cable monitoring clamp. Addressing the problems of existing submarine cable monitoring clamps being heavy, inconvenient to install, and having a limited range of applicability, this invention provides a more secure clamping mechanism by incorporating clamp springs; prevents excessive deformation and damage during clamping by incorporating a clamp shell; allows for simultaneous measurement of temperature, acceleration, tilt angle, etc., by incorporating monitoring sensors; and facilitates assembly by incorporating an ROV operating handle. This zero-gravity dynamic submarine cable monitoring clamp places less burden on the submarine cable, is applicable to a wide range of pipe diameters, and is easy to install. Installation and monitoring can be completed by using the ROV operating handle in conjunction with an ROV, saving construction costs and providing effective support for the condition monitoring of submarine cables. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the zero-gravity dynamic submarine cable monitoring fixture provided by the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of two support groups arranged opposite to each other, as provided by the present invention.

[0022] Wherein: 1 is titanium alloy support frame; 2 is fixing part; 3 is support part; 4 is pin shaft; 5 is ROV operation connection hole; 6 is ROV operation handle; 7 is clamp housing connection hole; 8 is clamp housing; 9 is clamp spring connection hole; 10 is clamp spring; 11 is monitoring sensor; 12 is buoyancy module; 13 is clamp pad; 14 is weight reduction hole; 15 is bolt. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] See Figure 1-2 This invention discloses a zero-gravity dynamic submarine cable monitoring fixture, comprising:

[0025] The support assembly consists of two sets, spaced apart from each other. Each set includes two titanium alloy support frames 1, arranged crosswise on the same side. Each support frame 1 includes a fixing part 2 and a clamping part 3, with a pin 4 connecting the clamping part 3 and the fixing part 2. The two support frames 1 on the same side are hinged together by the pin 4. The fixing part 2 has an ROV operating handle connection hole 5, and an ROV operating handle 6 is connected between the two opposing support frames 1 via the ROV operating handle connection hole 5. The clamping part 3 has multiple clamp housing connection holes 7 spaced apart, and a clamp housing 8 is connected between the two opposing support frames 1 via the clamp housing connection holes 7. The fixing part 2 has clamp spring connection holes 9, and a clamp spring 10 is connected between the two opposing support frames 1 via the clamp spring connection holes 9. The ROV operating handle 6 facilitates assembly; the clamp spring 10 provides a more secure clamping of the submarine cable; and the clamp housing 8 prevents excessive deformation during clamping, which could cause damage to the clamp itself.

[0026] The monitoring sensor 11 is detachably mounted on the clamping part 3 by means of bolts 15; by setting the monitoring sensor 11, temperature, acceleration, tilt angle, etc. can be measured simultaneously.

[0027] In this embodiment, a buoyancy module 12 is also included. The buoyancy module 12 is detachably mounted on the clamp spring 10 by bolts 15, and the buoyancy module 12 is located between the clamp spring 10 and the monitoring sensor 11. The buoyancy module 12 is added to ensure that the weight of the clamp in seawater is 0, thereby eliminating the additional weight load of the clamp on the submarine cable.

[0028] In this embodiment, a clamp pad 13 is provided on the clamp housing 8. Multiple clamp pads 13 are spaced apart, and the two ends of each clamp pad 13 are in contact with two oppositely arranged titanium alloy support frames 1, so that the connection between the clamp and the submarine cable is tighter.

[0029] In this embodiment, the clamp pad 13 is cylindrical, and both sides of each clamp pad 13 are located on both sides of the clamp housing 8. The volume of the clamp pad 13 on the side of the clamp housing 8 that is far apart from each other is greater than the volume of the clamp pad 13 on the side of the clamp housing 8 that is close to each other. The cylindrical clamp pad 13 is provided at the clamping point to improve the adaptability of a single model clamp to submarine cables of different outer diameters.

[0030] In this embodiment, each titanium alloy support frame 1 has a plurality of weight-reducing holes 14 spaced apart on its clamping part 3; reducing the weight of the clamp and making it lighter can reduce the manufacturing cost of the clamp.

[0031] In this embodiment, the spline curves of the two fixing parts 2 located on the same side are clamp-shaped, and the two clamping parts 3 located on the same side are also clamp-shaped; thus improving the adaptability of a single type of clamp to submarine cables of different outer diameters.

[0032] In this embodiment, the ROV operating handle 6 is detachably connected to two oppositely arranged titanium alloy support frames 1 by bolts 15; the assembly process is simple and easy to operate by connecting with bolts 15.

[0033] In this embodiment, the fixture housing 8 is detachably connected to two oppositely arranged titanium alloy support frames 1 by bolts 15; the assembly process is simple and easy to operate by connecting with bolts 15.

[0034] In this embodiment, the clamp spring 10 is detachably connected to two oppositely arranged titanium alloy support frames 1 by bolts 15; the assembly process is simple and easy to operate by connecting with bolts 15.

[0035] In addition, in this embodiment, a low-density titanium alloy support frame 1 is used, thereby eliminating the additional weight load of the clamp on the submarine cable.

[0036] The clamp pad 13 is configured as a flexible pad, and the material of the clamp pad 13 is preferably a polymer. The clamp pad 13 is interference-fitted with the submarine cable, which can effectively limit the axial movement of the monitoring clamp on the submarine cable.

[0037] The monitoring sensor 11 is equipped with a battery sufficient to complete the entire monitoring process, eliminating the need for additional power replenishment equipment.

[0038] The clamp housing 8 is designed as two pieces, left and right, which are installed separately to avoid excessive deformation during clamping and damage to itself.

[0039] Detailed usage instructions

[0040] During clamp installation, the ROV first engages with the ROV operating handle 6, then the two ROV operating handles 6 are brought close together to increase the space below the clamp. At this point, the ROV is moved directly above the submarine cable and clamps the submarine cable to complete the installation of the monitoring clamp.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A zero-gravity dynamic submarine cable monitoring fixture, characterized in that, include: The support assembly comprises two sets of support assemblies arranged at intervals relative to each other. Each support assembly includes two titanium alloy support frames, with the two titanium alloy support frames on the same side arranged crosswise. Each titanium alloy support frame includes a fixing part and a clamping part, with a pin connecting the clamping part and the fixing part. The two titanium alloy support frames on the same side are hinged together by the pin. The fixing part is provided with an ROV operating handle connection hole, and an ROV operating handle is connected between the two titanium alloy support frames arranged opposite each other through the ROV operating handle connection hole. The clamping part is provided with multiple clamp housing connection holes at intervals, and a clamp housing is connected between the two titanium alloy support frames arranged opposite each other through the clamp housing connection holes. The fixing part is provided with a clamp spring connection hole, and a clamp spring is connected between the two titanium alloy support frames arranged opposite each other through the clamp spring connection hole. A monitoring sensor is detachably mounted on the clamping part by bolts; It also includes a buoyancy module, which is detachably mounted on the clamp spring by bolts, and the buoyancy module is located between the clamp spring and the monitoring sensor; The clamp housing is provided with clamp pads, and multiple clamp pads are spaced apart. The two ends of each clamp pad are in contact with two oppositely arranged titanium alloy support frames. The clamp pads are cylindrical, and each clamp pad has two sides located on both sides of the clamp housing. The volume of the clamp pads on the side of the clamp housing that is far apart from each other is greater than the volume of the clamp pads on the side of the clamp housing that is close to each other.

2. The zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that, Each of the titanium alloy support frames has multiple weight-reducing holes spaced apart in its clamping portion.

3. The zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that, The spline curves of the two fixing parts located on the same side are clamp-shaped, and the two clamping parts located on the same side are also clamp-shaped.

4. A zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that, The ROV operating handle is detachably connected to two oppositely arranged titanium alloy support frames via bolts.

5. A zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that, The fixture housing is detachably connected to two oppositely arranged titanium alloy support frames by bolts.

6. A zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that, The clamp spring is detachably connected to two oppositely arranged titanium alloy support frames by bolts.

Images