Zero-gravity dynamic submarine cable monitoring clamp

Abstract

The invention discloses a zero-gravity dynamic submarine cable monitoring clamp. Relates to the technical field of submarine cable monitoring, and comprises two supporting groups, each supporting group comprises two titanium alloy supporting frames, each titanium alloy supporting frame comprises a fixing part and a clamping part, a pin shaft is arranged between the clamping part and the fixing part, an ROV operation handle is arranged between the two oppositely arranged titanium alloy supporting frames through an ROV operation handle connecting hole, and the ROV operation handle connecting hole is connected with the supporting groups. A clamp shell is arranged between the two oppositely-arranged titanium alloy supporting frames through a clamp shell connecting hole, and a clamp spring is arranged between the two oppositely-arranged titanium alloy supporting frames through a clamp spring connecting hole. And the monitoring sensor is detachably arranged on the clamping part through a bolt. According to the invention, the fixing part and the clamping part are arranged, so that the load on the submarine cable is small, the applicable pipe diameter is wide, the installation is convenient, the installation monitoring can be completed by matching the ROV operation handle with the ROV, the construction cost is saved, and effective support is provided for the state monitoring of the submarine cable.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine cable monitoring, and more particularly to a zero-gravity dynamic submarine cable monitoring fixture. Background Art

[0002] During the installation and operation of the cable in the submarine environment, it will be subject to the combined effects of various environmental loads. The surrounding sea conditions, temperature, changes in produced fluid flow, etc. will cause fatigue loads on the submarine cable. If not monitored and effectively managed, it may cause damage to the submarine cable and reduce its fatigue life. In order to ensure the safety of the marine cable during its in-place operation, it is necessary to install a submarine cable monitoring fixture to effectively monitor the movement status of the submarine cable.

[0003] At present, traditional monitoring fixtures are heavy, and when clamped on submarine cables, they cause additional loads, which can easily damage the submarine cables. In addition, traditional monitoring fixtures are fastened with bolts and mostly use arc-shaped inner mating surfaces, which makes it difficult to assemble using ROVs, and the outer diameter range of submarine cables that can be adapted to a single model of fixture is also small.

[0004] Therefore, how to provide a zero-gravity dynamic submarine cable monitoring fixture that has little burden on the submarine cable, is applicable to a wide range of pipe diameters, and is easy to install is a problem that technical personnel in this field urgently need to solve. 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, has a small burden on the submarine cable, is applicable to a wide range of pipe diameters and is easy to install.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

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

[0008] A support group, wherein two groups of the support groups are arranged relatively at intervals, each group of the support groups includes two titanium alloy support frames, and the two titanium alloy support frames located on the same side are cross-arranged, and each of the titanium alloy support frames includes a fixing portion and a clamping portion, a pin is arranged between the clamping portion and the fixing portion, and the two titanium alloy support frames on the same side are hinged through the pin, an ROV operating handle connecting hole is arranged on the fixing portion, and an ROV operating handle is arranged between the two titanium alloy support frames arranged relatively to each other through the ROV operating handle connecting hole, a plurality of clamp housing connecting holes are arranged at intervals on the clamping portion, and a clamp housing is arranged between the two titanium alloy support frames arranged relatively to each other through the clamp housing connecting hole, a clamp spring connecting hole is arranged on the fixing portion, and a clamp spring is arranged between the two titanium alloy support frames arranged relatively to each other through the clamp spring connecting hole;

[0009] A monitoring sensor is detachably arranged on the clamping portion by means of bolts.

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

[0011] Furthermore, a fixture pad is provided on the fixture housing, and a plurality of the fixture pads are arranged at intervals, and both ends of each of the fixture pads are respectively in contact with two of the titanium alloy support frames that are arranged oppositely.

[0012] Furthermore, the clamp pad is configured to be cylindrical, and both sides of each of the clamp pads are located on both sides of the clamp shell, and the volume of the clamp pads arranged on the side of the clamp shell away from each other is larger than the volume of the clamp pads arranged on the side of the clamp shell close to each other.

[0013] Furthermore, a plurality of weight-reducing holes are arranged at intervals on the clamping portion of each titanium alloy support frame.

[0014] Furthermore, the spline curves of the two fixing portions located on the same side are in a clamp shape, and the two clamping portions located on the same side are also in a clamp shape.

[0015] Furthermore, the ROV operating handle is detachably connected to the two titanium alloy support frames arranged opposite to each other through bolts.

[0016] Furthermore, the fixture housing is detachably connected to the two titanium alloy support frames arranged opposite to each other through bolts.

[0017] Furthermore, the clamp spring is detachably connected to the two titanium alloy support frames arranged opposite to each other through bolts.

[0018] Through the above technical solutions, it can be known that compared with the prior art, the present invention discloses a zero-gravity dynamic submarine cable monitoring clamp. In view of the problems of heavy weight, inconvenient installation and small adaptability of the existing submarine cable monitoring clamp, a clamp spring is provided to clamp the submarine cable more firmly; a clamp shell is provided to avoid excessive deformation during the clamping process to prevent the clamp from causing damage to itself; a monitoring sensor is provided to simultaneously measure temperature, acceleration, inclination, etc.; an ROV operating handle is provided to facilitate assembly; the zero-gravity dynamic submarine cable monitoring clamp has a small burden on the submarine cable, is suitable for a wide range of pipe diameters and is easy to install. The installation and monitoring can be completed by using the ROV operating handle in conjunction with the ROV, saving construction costs and providing effective support for the status monitoring of the submarine cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

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

[0021] Figure 2 A schematic structural diagram of two supporting groups arranged opposite to each other provided by the present invention.

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

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-2 The embodiment of the present invention discloses a zero-gravity dynamic submarine cable monitoring fixture, comprising:

[0025] A support group, wherein two support groups are arranged in a relative interval, and each support group includes two titanium alloy support frames 1, and the two titanium alloy support frames 1 on the same side are arranged crosswise, and each titanium alloy support frame 1 includes a fixing portion 2 and a clamping portion 3, and a pin 4 is arranged between the clamping portion 3 and the fixing portion 2, and the two titanium alloy support frames 1 on the same side are hinged through the pin 4, and an ROV operating handle connecting hole 5 is arranged on the fixing portion 2, and an ROV operating handle 6 is arranged between the two relatively arranged titanium alloy support frames 1 through the ROV operating handle connecting hole 5, and a plurality of clamp housing connecting holes 7 are arranged at intervals on the clamping portion 3, and a clamp housing 8 is arranged between the two relatively arranged titanium alloy support frames 1 through the clamp housing connecting hole 7, and a clamp spring connecting hole 9 is arranged on the fixing portion 2, and a clamp spring 10 is arranged between the two relatively arranged titanium alloy support frames 1 through the clamp spring connecting hole 9; by arranging the ROV operating handle 6, assembly is convenient; by arranging the clamp spring 10, the clamping of the submarine cable is more firmly; by arranging the clamp housing 8, self-destruction caused by excessive deformation during the clamping process is avoided;

[0026] The monitoring sensor 11 is detachably arranged on the clamping portion 3 by means of a bolt 15 ; by arranging the monitoring sensor 11 , the temperature, acceleration, inclination angle, etc. can be measured synchronously.

[0027] In this embodiment, a buoyancy module 12 is also included. The buoyancy module 12 is detachably arranged on the clamp spring 10 by means of bolts 15, and the buoyancy module 12 is located between the clamp spring 10 and the monitoring sensor 11; and the buoyancy module 12 is installed 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, and a plurality of clamp pads 13 are arranged at intervals, and both ends of each clamp pad 13 are respectively 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 set to be cylindrical, and both sides of each clamp pad 13 are located on both sides of the clamp shell 8. The volume of the clamp pad 13 set on the side of the clamp shell 8 away from each other is larger than the volume of the clamp pad 13 set on the side of the clamp shell 8 close to each other; a cylindrical clamp pad 13 is set at the clamping position to improve the adaptability of a single model of clamp to submarine cables with different outer diameters.

[0030] In this embodiment, the clamping portion 3 of each titanium alloy support frame 1 is provided with a plurality of weight-reducing holes 14 at intervals, thereby reducing the weight of the clamp. The light weight can reduce the manufacturing cost of the clamp.

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

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

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

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

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

[0036] The clamp gasket 13 is configured as a flexible gasket, and the material of the clamp gasket 13 is preferably a polymer. The clamp gasket 13 has an interference fit 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, and no additional energy supplement equipment is required.

[0038] The clamp housing 8 is provided with two left and right pieces, which are installed separately to avoid the clamp being damaged due to excessive deformation during the clamping process.

[0039] Specific usage

[0040] When installing the clamp, the ROV is first positioned and matched with the ROV operating handle 6, and then the two ROV operating handles 6 are pressed together to increase the space below the clamp. At this time, the clamp is moved to the top of the submarine cable, clamping the submarine cable to complete the installation of the monitoring clamp.

[0041] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0042] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to 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: A support group, wherein two groups of the support groups are arranged relatively at intervals, each group of the support groups includes two titanium alloy support frames, and the two titanium alloy support frames located on the same side are cross-arranged, and each of the titanium alloy support frames includes a fixing portion and a clamping portion, a pin is arranged between the clamping portion and the fixing portion, and the two titanium alloy support frames on the same side are hinged through the pin, an ROV operating handle connecting hole is arranged on the fixing portion, and an ROV operating handle is arranged between the two titanium alloy support frames arranged relatively to each other through the ROV operating handle connecting hole, a plurality of clamp housing connecting holes are arranged at intervals on the clamping portion, and a clamp housing is arranged between the two titanium alloy support frames arranged relatively to each other through the clamp housing connecting hole, a clamp spring connecting hole is arranged on the fixing portion, and a clamp spring is arranged between the two titanium alloy support frames arranged relatively to each other through the clamp spring connecting hole; A monitoring sensor is detachably arranged on the clamping portion by means of bolts.

2. A zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that: It also includes a buoyancy module, which is detachably arranged on the clamp spring through bolts, and the buoyancy module is located between the clamp spring and the monitoring sensor.

3. A zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that: A clamp pad is arranged on the clamp housing, and a plurality of the clamp pads are arranged at intervals, and two ends of each of the clamp pads are respectively in contact with two titanium alloy support frames arranged oppositely.

4. A zero-gravity dynamic submarine cable monitoring fixture according to claim 3, characterized in that: The clamp pads are arranged in a cylindrical shape, and both sides of each of the clamp pads are located on both sides of the clamp shell, and the volume of the clamp pads arranged on the side of the clamp shell away from each other is larger than the volume of the clamp pads arranged on the side of the clamp shell close to each other.

5. A zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that: The clamping portion of each titanium alloy support frame is provided with a plurality of weight-reducing holes at intervals.

6. A 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 in a clamp shape, and the two clamping parts located on the same side are also in a clamp shape.

7. A zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that: The ROV operating handle is detachably connected to the two titanium alloy support frames arranged opposite to each other through bolts.

8. The zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that: The fixture housing is detachably connected to the two titanium alloy support frames arranged opposite to each other through bolts.

9. A zero-gravity dynamic submarine cable monitoring fixture according to claim 1, characterized in that: The clamp spring is detachably connected to the two titanium alloy support frames arranged opposite to each other through bolts.

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