An armored submarine cable clamp type platform anchoring device and anchoring method

Abstract

The invention discloses an armored submarine cable clamp-type platform anchoring device and an anchoring method, comprising: a clamping assembly and a clamp-armor pressure assembly, the clamping assembly comprising a first clamping part and a second clamping part arranged oppositely, the clamp-armor pressure assembly comprising a steel wire layered anchoring assembly and a first hoop plate and a second hoop plate arranged oppositely, the first hoop plate and the second hoop plate having semicircular grooves concavely arranged on their inner sides respectively, the steel wire layered anchoring assembly comprising a first pressure ring and a second pressure ring, the first pressure ring being arranged above the second pressure ring, the first pressure ring having a first conical surface convexly arranged on the top surface, the second pressure ring having a second conical surface convexly arranged on the bottom surface, the top of the semicircular groove having a third conical surface concavely arranged corresponding to the first conical surface, the bottom of the semicircular groove having a fourth conical surface concavely arranged corresponding to the second conical surface, the first hoop plate and the second hoop plate driving the first pressure ring and the second pressure ring to anchor the armored steel wire during the closing process, thereby ensuring the quickness and reliability of the anchoring of the armored steel wire.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine cable fixing, and in particular to an armored submarine cable clamp-type platform anchoring device and an anchoring method. Background Art

[0002] In order to realize the transformation of offshore oil and gas platforms into smart platforms and ensure the communication and interconnection between platforms, the submarine cable landing platform has become one of the key ways. In order to ensure that the submarine cable can be safely and stably fixed on the platform and prevent the submarine cable from falling or being damaged due to external forces, it is usually necessary to use corresponding platform anchoring devices. The platform anchoring device usually uses armor compression or glue injection to firmly fix the armored steel wire of the submarine cable, providing reliable support and protection, thereby meeting the operation requirements of the submarine cable in complex marine environments after landing on the platform.

[0003] In the prior art, a utility model patent with announcement number CN204114360U discloses a platform anchoring device for steel wire armored submarine cable, which uses an upper pressure plate and a lower pad to clamp the armored steel wire, and connects the upper pressure plate and the lower pad with multiple bolts to achieve the anchoring of the submarine cable on the platform. Since the bolts will inevitably interfere with the armored steel wire between the upper pressure plate and the lower pad when they are pierced, making it impossible to install the bolts, it is necessary to pre-treat the armored steel wire and avoid the bolts before the bolts can connect and fix the upper pressure plate and the lower pad. The operation is cumbersome and the workload is large. In addition, the upper pressure plate and the lower pad have large areas, and the number of bolts installed is large, which easily leads to the problem that the upper pressure plate and the lower pad are not parallel, and the anchoring reliability is poor, and repeated adjustments are required, which is inefficient.

[0004] In addition, on offshore oil and gas platforms, the space is narrow and the construction conditions are difficult. The bolts need to be tightened several times to adjust the fixing of the upper pressure plate and the lower pad, which further increases the workload and is time-consuming and labor-intensive. Moreover, after the submarine cable lands on the platform, it is often impossible to adjust the required length of the submarine cable on the platform. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide an armored submarine cable clamp type platform anchoring device and anchoring method, so as to improve the construction efficiency and ensure the quickness, reliability and adjustment convenience of anchoring.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide an armored submarine cable clamp type platform anchoring device, comprising:

[0007] A clamping assembly, the clamping assembly comprising a first clamping component and a second clamping component arranged opposite to each other, wherein the first clamping component and the second clamping component are respectively provided with a clamping groove extending vertically and corresponding to the outer wall of the armored submarine cable, and the outer wall of the armored submarine cable is clamped by closing the first clamping component and the second clamping component;

[0008] A clamping and armoring assembly, wherein the clamping and armoring assembly is located above the clamping assembly, and is used to anchor the armored steel wire in the armored submarine cable after it is bent. The clamping and armoring assembly comprises a steel wire layered anchoring assembly and a first hoop plate and a second hoop plate arranged opposite to each other, wherein the inner sides of the first hoop plate and the second hoop plate are respectively concavely provided with semicircular grooves, and the semicircular grooves on both sides form a closed-loop circular groove after the first hoop plate and the second hoop plate are closed. The steel wire layered anchoring assembly is arranged in the closed-loop circular groove, and the steel wire layered anchoring assembly comprises a first pressing ring and a second pressing ring, wherein the first pressing ring is arranged above the second pressing ring, the first pressing ring has a first conical surface convexly provided on the top surface of the first pressing ring, and the second pressing ring has a second conical surface convexly provided on the bottom surface of the second pressing ring, the top of the semicircular groove has a third conical surface concavely provided with a first conical surface corresponding to the first conical surface, and the bottom of the semicircular groove has a fourth conical surface concavely provided with a second conical surface corresponding to the second conical surface, and the first hoop plate and the second hoop plate drive the first pressing ring and the second pressing ring to anchor the armored steel wire during the closing process.

[0009] In a preferred embodiment of the present invention, the number of the steel wire layered anchoring assemblies is at least one group.

[0010] In a preferred embodiment of the present invention, a plurality of arc-shaped grooves are arranged at intervals up and down on the inner side of the slot.

[0011] In a preferred embodiment of the present invention, a first hinge is provided on one side of the first clamping member and the second clamping member for movable connection, and a first bolt is provided on the other side of the first clamping member and the second clamping member for locking after closing.

[0012] In a preferred embodiment of the present invention, it further comprises a bottom connecting flange, the first clamping part and the second clamping part are closed to form a cylindrical structure, and a positioning sleeve corresponding to the bottom of the cylindrical structure is arranged on the bottom connecting flange.

[0013] In a preferred embodiment of the present invention, the bottom connecting flange includes two opposite planar semicircular ring plates, the planar semicircular ring plates are provided with second bolts connected to the platform, and the positioning sleeve includes two semicircular arc plates respectively vertically arranged on the planar semicircular ring plates.

[0014] In a preferred embodiment of the present invention, a third bolt pointing to the clamping assembly is radially arranged on the positioning sleeve, and a fifth conical surface corresponding to the second conical surface is concavely arranged on the top of the first clamping component and the second clamping component.

[0015] In a preferred embodiment of the present invention, the first pressure ring includes several first plane circular arc plates, which are arranged in a circular array to form the first pressure ring, and the second pressure ring includes several second plane circular arc plates, which are arranged in a circular array to form the second pressure ring.

[0016] In a preferred embodiment of the present invention, a second hinge is provided on one side of the first hoop plate and the second hoop plate for movable connection, and a fourth bolt is provided on the other side of the first hoop plate and the second hoop plate for locking after closing.

[0017] In order to solve the above technical problems, another technical solution adopted by the present invention is: to provide an anchoring method for an armored submarine cable, comprising the following steps:

[0018] When the armored submarine cable lands on the platform, first fix the clamping assembly on the outer wall of the head of the armored submarine cable, and use the traction head to drag the armored submarine cable upward;

[0019] Fix the bottom connection flange on the platform, drop the clamping assembly onto the positioning sleeve, and keep the traction head pulling the armored submarine cable;

[0020] The armored steel wire on the head of the armored submarine cable is stripped and bent so that the head of the armored steel wire is clamped between the first pressure ring and the second pressure ring, and the first hoop plate and the second hoop plate are closed to achieve anchoring of the armored steel wire by the first pressure ring and the second pressure ring;

[0021] Loosen and adjust the position of the clamp assembly so that the top of the clamp assembly contacts the bottom of the clamp assembly, and re-tighten the clamp assembly.

[0022] The beneficial effects of the present invention are as follows: an armored submarine cable clamp-type platform anchoring device and anchoring method pointed out by the present invention, through the closure of the first hoop plate and the second hoop plate in the clamp-armor pressure assembly, drives the first pressure ring and the second pressure ring to anchor the armored steel wire at one time, thereby ensuring the quickness and reliability of the anchoring of the armored steel wire. The armored steel wire does not need to avoid bolts, and the operation is convenient. Moreover, the clamping assembly can be used to adjust the required length of the submarine cable on the platform after landing on the platform, thereby improving the convenience of adjustment during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0024] Figure 1 It is a structural schematic diagram of a preferred embodiment of an armored submarine cable clamp type platform anchoring device of the present invention;

[0025] Figure 2 yes Figure 1 Schematic diagram of the structure after the middle clamping assembly and the clamping armor assembly are opened;

[0026] Figure 3 yes Figure 2 A schematic diagram of the structure of the middle clamping assembly;

[0027] Figure 4 yes Figure 2 Structural schematic diagram of the middle clamp armor assembly;

[0028] Figure 5 yes Figure 4 A cross-sectional view of the middle clamp armor assembly;

[0029] Figure 6 yes Figure 5 Schematic diagram of the structure of the first pressure ring and the second pressure ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention are described clearly and completely below. 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.

[0031] See also Figure 1 to Figure 6 , the embodiment of the present invention includes:

[0032] like Figure 1 The armored submarine cable clamp type platform anchoring device shown is used for anchoring the armored submarine cable 1 on the platform, and includes: a clamping component 3, a clamping clamp armoring component 2 and a bottom connecting flange 5, as shown in FIG. Figure 3 As shown, the clamping assembly 3 includes a first clamping component 31 and a second clamping component 32 arranged opposite to each other. The first clamping component 31 and the second clamping component 32 are respectively provided with a clamping groove 35 extending vertically and corresponding to the outer wall of the armored submarine cable 1 on the inner side. The outer wall of the armored submarine cable 1 is clamped by closing the first clamping component 31 and the second clamping component 32.

[0033] A first hinge 33 is provided on one side of the first clamping member 31 and the second clamping member 32 for active connection, which facilitates the opening and closing operations of the first clamping member 31 and the second clamping member 32. A first bolt 8 is provided on the other side of the first clamping member 31 and the second clamping member 32 for locking after closing, and the structure is reliable. In this embodiment, a plurality of arc grooves 36 are provided at intervals up and down inside the slot 35, and the plurality of arc grooves 36 are used to increase the friction with the outer wall of the armored submarine cable 1 to avoid the problem of the armored submarine cable 1 slipping off.

[0034] like Figure 1 As shown, the first clamping component 31 and the second clamping component 32 are closed to form a cylindrical structure, and a positioning sleeve 4 corresponding to the bottom of the cylindrical structure is provided on the bottom connecting flange 5 to position the bottom of the clamping assembly 3.

[0035] In this embodiment, the bottom connection flange 5 includes two opposite planar semicircular ring plates 51, and the planar semicircular ring plates 51 are provided with second bolts 6 connected to the platform, so as to be conveniently fixed on the platform. The positioning sleeve 4 includes two semicircular arc plates 41 respectively arranged vertically on the planar semicircular ring plates 51, and the bottom of the semicircular arc plate 41 is welded and fixed to the inner edge of the planar semicircular ring plate 51, so that the structure is stable and the concentricity of the positioning sleeve 4 and the bottom connection flange 5 can be ensured.

[0036] like Figure 2 As shown, the clamping armour pressing assembly 2 is located above the clamping assembly 3, and the clamping armour pressing assembly 2 is used to anchor the bent armoured steel wire 11 in the armoured submarine cable 1. Figure 4 and Figure 5 As shown, the clamp pressure armor assembly 2 includes a steel wire layered anchor assembly and a first hoop plate 21 and a second hoop plate 22 arranged opposite to each other. The first hoop plate 21 and the second hoop plate 22 are respectively provided with semicircular grooves 26 on the inner sides thereof. When the first hoop plate 21 and the second hoop plate 22 are closed, the semicircular grooves 26 on both sides form a closed-loop circular groove. In this embodiment, a second hinge 23 is provided on one side of the first hoop plate 21 and the second hoop plate 22 for active connection, and a fourth bolt 9 is provided on the other side of the first hoop plate 21 and the second hoop plate 22 for locking after closing, which is easy to operate.

[0037] The steel wire layered anchoring assembly is arranged in a closed-loop circular groove, and the number of the steel wire layered anchoring assembly is at least one group, and one group of steel wire layered anchoring assembly is used to anchor one layer of armor steel wire 11. If the armor steel wire has multiple layers, multiple groups of steel wire layered anchoring assemblies can be stacked in the closed-loop circular groove to further anchor multiple layers of armor steel wire in layers.

[0038] In this embodiment, the steel wire layered anchoring assembly includes a first compression ring 24 and a second compression ring 25. The first compression ring 24 is arranged above the second compression ring 25. The armor steel wire 11 is bent outward and evenly distributed between the first compression ring 24 and the second compression ring 25, and is compressed and fixed by the first compression ring 24 and the second compression ring 25.

[0039] like Figure 4 As shown, the first pressure ring 24 includes several first plane arc plates, which are arranged in a ring array to form the first pressure ring, and the second pressure ring 25 includes several second plane arc plates, which are arranged in a ring array to form the second pressure ring. In order to improve the ease of operation, in this embodiment, the first pressure ring 24 only uses two first plane arc plates, and the second pressure ring 25 only uses two second plane arc plates, which are convenient for clamping on the armored submarine cable 1 from both sides.

[0040] In addition, in order to improve stability, the seams of adjacent first plane arc plates are offset from the seams of adjacent second plane arc plates, and the seams of adjacent first plane arc plates and the seams of adjacent second plane arc plates are respectively offset from the seams after the first hoop plate 21 and the second hoop plate 22 are closed, so that when the first hoop plate 21 and the second hoop plate 22 are closed, the force on the first pressure ring 24 and the second pressure ring 25 is more stable.

[0041] like Figure 6 As shown, a first conical surface 241 is convexly provided on the top surface of the first pressing ring 24, a second conical surface 251 is convexly provided on the bottom surface of the second pressing ring 25, a third conical surface 261 corresponding to the first conical surface 241 is concavely provided on the top of the semicircular groove 26, and a fourth conical surface 262 corresponding to the second conical surface 251 is concavely provided on the bottom of the semicircular groove 26, and the fit is tight, as shown in FIG. Figure 5 As shown, during the closing process of the first hoop plate 21 and the second hoop plate 22, the first pressure ring 24 and the second pressure ring 25 are driven to anchor the armored steel wire 11. The operation is simple, and the first hoop plate 21 and the second hoop plate 22 apply force to the first pressure ring 24 and the second pressure ring 25 evenly. There is no need to perform multiple bolt adjustment steps, and the operation is quick.

[0042] In this embodiment, the positioning sleeve 4 is radially provided with a third bolt 7 pointing to the clamping assembly 3, and the bottom of the clamping assembly 3 is fixed in the positioning sleeve 4 by the third bolt 7 to prevent it from loosening. The tops of the first clamping component 31 and the second clamping component 32 are concavely provided with a fifth conical surface 34 corresponding to the second conical surface 251, so that the second pressure ring 25 is seated on the clamping assembly 3, and the fit is tight, further improving the structural stability.

[0043] A method for anchoring an armored submarine cable comprises the following steps:

[0044] When the armored submarine cable lands on the platform, first fix the clamping assembly 3 on the outer wall of the head of the armored submarine cable 1, 20 to 50 cm below the armored steel wire to be anchored, without affecting the stripping and bending of the armored steel wire, and use the traction head to drag the armored submarine cable upward;

[0045] Fix the bottom connection flange 5 on the platform, drop the clamping assembly 3 onto the positioning sleeve 4, ensure the stability and safety during operation, and keep the traction head in the state of pulling the armored submarine cable;

[0046] The armored steel wire 11 on the head of the armored submarine cable 1 is stripped and bent, such as Figure 2As shown, the head of the armored steel wire 11 is bent 90 degrees radially outward along the armored submarine cable 1, and there is no need to consider the bolt problem, which ensures the uniformity of the dispersion of the armored steel wire 11 and the convenience of construction; the first pressure ring 24 and the second pressure ring 25 are installed, so that the head of the armored steel wire 11 is clamped between the first pressure ring 24 and the second pressure ring 25, the first hoop plate 21 and the second hoop plate 22 are closed, and the fourth bolt 9 is tightened. By using the cooperation of the conical surface, the first pressure ring 24 and the second pressure ring 25 are used to realize the extrusion type anchoring of the head of the armored steel wire 11;

[0047] Loosen and adjust the position of the clamping assembly 3, use the traction head to lower the armored submarine cable 1, and the clamping and armoring assembly 2 will be lowered accordingly, so that the top of the clamping assembly 3 contacts the bottom of the clamping and armoring assembly 2, and re-tighten the first bolt 8 on the clamping assembly 3 to complete the anchoring. In addition, the clamping assembly 3 of different heights can be replaced to adjust the required length of the armored submarine cable 1 on the platform after landing on the platform, which is flexible to use.

[0048] In summary, the armored submarine cable clamp-type platform anchoring device and anchoring method pointed out in the present invention can quickly anchor the armored steel wire on the armored submarine cable and clamp the armored submarine cable, ensure the speed and reliability of the armored submarine cable 1 landing on the platform, improve the installation efficiency, and reduce the workload on the offshore oil and gas platform.

[0049] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An armored submarine cable clamp type platform anchoring device, used for anchoring an armored submarine cable on a platform, characterized in that: include: A clamping assembly, the clamping assembly comprising a first clamping component and a second clamping component arranged opposite to each other, wherein the first clamping component and the second clamping component are respectively provided with a clamping groove extending vertically and corresponding to the outer wall of the armored submarine cable, and the outer wall of the armored submarine cable is clamped by closing the first clamping component and the second clamping component; A clamping and armoring assembly, wherein the clamping and armoring assembly is located above the clamping assembly, and is used to anchor the armored steel wire in the armored submarine cable after it is bent. The clamping and armoring assembly comprises a steel wire layered anchoring assembly and a first hoop plate and a second hoop plate which are arranged opposite to each other. The first hoop plate and the second hoop plate are respectively provided with semicircular grooves on their inner sides which are concave. After the first hoop plate and the second hoop plate are closed, the semicircular grooves on both sides form a closed-loop circular groove. The steel wire layered anchoring assembly is arranged in the closed-loop circular groove. The steel wire layered anchoring assembly comprises a first pressing ring and a second pressing ring. The first pressing ring is arranged above the second pressing ring. The first pressing ring is convexly provided with a first conical surface on the top surface of the first pressing ring, and the second pressing ring is convexly provided with a second conical surface on the bottom surface of the second pressing ring. The top of the semicircular groove is concavely provided with a third conical surface corresponding to the first conical surface, and the bottom of the semicircular groove is concavely provided with a fourth conical surface corresponding to the second conical surface. During the closing process of the first hoop plate and the second hoop plate, the first pressing ring and the second pressing ring are driven to anchor the armored steel wire. The bottom connecting flange, the first clamping part and the second clamping part form a cylindrical structure after being closed, the bottom connecting flange is provided with a positioning sleeve corresponding to the bottom of the cylindrical structure, the bottom connecting flange includes two opposite planar semicircular ring plates, the planar semicircular ring plates are provided with a second bolt connected to the platform, the positioning sleeve includes two semicircular arc plates respectively vertically arranged on the planar semicircular ring plates, the positioning sleeve is radially provided with a third bolt pointing to the clamping assembly, the first clamping part and the second clamping part are concavely provided with a fifth conical surface corresponding to the second conical surface at the top, the first pressure ring includes several first planar arc plates, and several first planar arc plates are arranged in a ring array to form the first pressure ring, the second pressure ring includes several second planar arc plates, and several second planar arc plates are arranged in a ring array to form the second pressure ring.

2. The armored submarine cable clamp type platform anchoring device according to claim 1 is characterized in that: The number of the steel wire layered anchoring assemblies is at least one group.

3. The armored submarine cable clamp type platform anchoring device according to claim 1 is characterized in that: A plurality of arc-shaped grooves are arranged at intervals up and down on the inner side of the clamping groove.

4. The armored submarine cable clamp type platform anchoring device according to claim 1 is characterized in that: A first hinge is disposed on one side of the first clamping component and the second clamping component for active connection, and a first bolt is disposed on the other side of the first clamping component and the second clamping component for locking after closing.

5. The armored submarine cable clamp type platform anchoring device according to claim 1 is characterized in that: A second hinge is disposed on one side of the first hoop plate and the second hoop plate for movable connection, and a fourth bolt is disposed on the other side of the first hoop plate and the second hoop plate for locking after closing.

6. A method for anchoring an armored submarine cable, characterized in that: The armored submarine cable clamp type platform anchoring device according to any one of claims 1 to 5 comprises the following steps: When the armored submarine cable lands on the platform, first fix the clamping assembly on the outer wall of the head of the armored submarine cable, and use the traction head to drag the armored submarine cable upward; Fix the bottom connection flange on the platform, drop the clamping assembly onto the positioning sleeve, and keep the traction head pulling the armored submarine cable; The armored steel wire on the head of the armored submarine cable is stripped and bent so that the head of the armored steel wire is clamped between the first pressure ring and the second pressure ring, and the first hoop plate and the second hoop plate are closed to achieve anchoring of the armored steel wire by the first pressure ring and the second pressure ring; Loosen and adjust the position of the clamp assembly so that the top of the clamp assembly contacts the bottom of the clamp assembly, and re-tighten the clamp assembly.

Images