Ore pulp transportation composite pipe cable

Abstract

The invention relates to the field of seabed mining equipment, and provides an ore pulp transportation composite pipe cable, which comprises a transportation pipe, a photoelectric cable, a socket fixing plate, a photoelectric socket, a sheath and a protection shell, and is characterized in that the end part of the transportation pipe is used for being connected with an ore pulp discharge pipe of a deep sea mining vehicle to convey ore pulp; the sheath is sleeved outside the conveying pipe, two ends of the protective shell are arranged in a penetrating manner, the protective shell is sleeved at the joint of the conveying pipe and the ore pulp discharge pipe, one end of the protective shell is hermetically connected with the sheath, the socket fixing plate is hermetically mounted at the other end of the protective shell, and the photoelectric socket is hermetically inserted into the socket fixing plate; the photoelectric cable penetrates through the gap between the conveying pipe and the sheath and is electrically connected with the photoelectric socket, and the photoelectric socket is used for being electrically connected with an underwater photoelectric fly wire. The whole ore pulp transportation composite pipe cable can realize ore pulp transportation and also can realize electric power and communication transmission functions with an underwater photoelectric fly wire, so that the arrangement number of underwater pipelines is reduced, the occupied space is small, the integration degree is high, and the cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of seabed mining equipment, and in particular to a composite pipe cable for transporting slurry. Background Art

[0002] As one of the many marine resources, seabed mineral deposits have gradually become one of the focuses of marine development research. During mining, deep-sea mining vehicles are usually used to drill for slurry, and then a flow section of equal diameter is constructed through a transport pipe to transport the slurry to the sea surface. At present, the transport pipe only has the function of transporting slurry. When transmitting power and communications to underwater operating equipment, a separate power system needs to be introduced to supply power and communicate with it. The problem with this method is that the pipelines introduced into the seabed are very complicated and cumbersome, occupy a large space, have low integration, and are costly. Summary of the invention

[0003] The present invention provides a composite pipe-cable for slurry transportation, which is used to solve the problems that the slurry transportation pipe-cable in the prior art only has the function of slurry transportation, has single function, low integration and high cost.

[0004] The present invention provides a composite pipe-cable for transporting slurry, comprising: a transport pipe, a photoelectric cable, a socket fixing plate, a photoelectric socket, a sheath and a protective shell, wherein the end of the transport pipe is used to be connected to a slurry discharge pipe of a deep-sea mining vehicle to transport slurry; The sheath is sleeved on the outside of the transport pipe, and the two ends of the protective shell are penetrated. The protective shell is used to be sleeved on the connection between the transport pipe and the slurry discharge pipe. One end of the protective shell is sealed and connected to the sheath, and the socket fixing plate is sealed and installed on the other end of the protective shell.

[0005] The photoelectric socket is sealed and inserted into the socket fixing plate, the photoelectric cable is passed through the gap between the transport tube and the sheath, and is electrically connected to the photoelectric socket, and the photoelectric socket is used to be electrically connected to the underwater photoelectric flying line.

[0006] A composite pipe cable for transporting slurry provided by the present invention also includes a pipe joint and a first seal. The end of the transport pipe is used to be nested in the slurry discharge pipe. The pipe joint is fixedly sleeved on the transport pipe and is used to be fixedly connected to the connecting lug on the slurry discharge pipe. The first seal is used to seal the gap between the pipe joint and the connecting lug.

[0007] According to a composite pipe cable for slurry transportation provided by the present invention, the outer wall of the transport pipe is provided with a first tensile armor layer and a second tensile armor layer in sequence from the inside to the outside along the radial direction of the transport pipe, and the photoelectric cable is passed through the gap between the second tensile armor layer and the sheath.

[0008] A composite pipe cable for transporting slurry provided by the present invention also includes a bonding component, wherein the ends of the first tensile armor layer and the second tensile armor layer are respectively anchored to the pipe joint, and the bonding component is poured into the connecting gap between the pipe joint and the first tensile armor layer and the second tensile armor layer.

[0009] A composite pipe cable for transporting slurry provided by the present invention also includes a conical sealing ring and a sealing bolt, the sheath has a sealing baffle, the protective shell has a connecting edge at one end close to the sheath, the connecting edge and the end face of the protective shell form an abutment surface, the conical sealing ring is arranged on the connecting edge, the sealing bolt is passed through the sealing baffle and the connecting edge, and the conical sealing ring is pressed against the abutment surface.

[0010] A composite pipe cable for transporting slurry provided by the present invention also includes a clamp and a fixing bolt, the sheath has a clamp fixing plate, the end of the protective shell close to the sheath has a limiting edge connected to the connecting edge, the clamp is clamped on the sheath and is located in the area surrounded by the limiting edge, the sealing baffle and the clamp fixing plate, the fixing bolt passes through the clamp fixing plate and the limiting edge, and presses the clamp against the sealing baffle.

[0011] A composite pipe cable for transporting slurry provided according to the present invention further includes a second seal, which is arranged between the socket fixing plate and the protective shell and is used to seal the gap between the socket fixing plate and the protective shell.

[0012] A composite pipe cable for transporting slurry provided by the present invention also includes a locking bolt and a third sealing member. The socket fixing plate has a through hole for the slurry discharge pipe to pass through. The locking bolt is passed through the socket fixing plate to lock the socket fixing plate to the connecting lug on the slurry discharge pipe. The third sealing member is used to seal the gap between the socket fixing plate and the connecting lug.

[0013] A composite pipe cable for transporting slurry provided by the present invention also includes a waterproof gasket and a locking nut. The socket fixing plate is provided with a mounting hole, the photoelectric socket is inserted into the mounting hole, the waterproof gasket and the locking nut are respectively sleeved on the photoelectric socket, and the socket fixing plate is clamped between the waterproof gasket and the locking nut. As the locking nut is screwed in, the photoelectric socket is locked to the socket fixing plate.

[0014] According to a composite pipe cable for slurry transportation provided by the present invention, a radial sealing ring is provided on the wall of the installation hole for sealing a gap between the photoelectric socket and the wall of the installation hole.

[0015] The present invention provides a composite pipe-cable for slurry transportation, which connects the end of a transportation pipe with a slurry discharge pipe on a deep-sea mining vehicle so as to transport the slurry to the sea surface through the transportation pipe; a protective shell is arranged at the connection between the transportation pipe and the slurry discharge pipe to provide waterproof protection for the photoelectric cable; a socket fixing plate is sealed and fixed to the protective shell to provide support for the photoelectric socket; the photoelectric cable passes through the gap between the sheath and the transportation pipe to be electrically connected to the photoelectric socket; the photoelectric socket is electrically connected to an underwater photoelectric flying line, so that power and photoelectric signals are transmitted to the underwater photoelectric flying line through the photoelectric cable; the entire composite pipe-cable for slurry transportation can realize the functions of transporting slurry as well as power and communication transmission with the underwater photoelectric flying line, has diversified functions, reduces the number of underwater pipelines, occupies a small space, has a high degree of integration, and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a partial cross-sectional view of the composite pipe-cable for slurry transportation provided by the present invention.

[0018] Figure 2 This is one of the partial structural schematic diagrams of the composite pipe cable for slurry transportation provided by the present invention.

[0019] Figure 3 This is the second partial structural schematic diagram of the composite pipe-cable for slurry transportation provided by the present invention.

[0020] Reference numerals: 1. Transport pipe; 11. First tensile armor layer; 12. Second tensile armor layer; 13. Connecting edge; 14. Limiting edge; 2. Optoelectronic cable; 21. Electrical connector; 3. Socket fixing plate; 31. Mounting hole; 4. Photoelectric socket; 5. Sheath; 51. Sealing baffle; 52. Fixture fixing plate; 6. Protective shell; 7. Pipe joint; 8. First sealing member; 9. Conical sealing ring; 10. Sealing bolt; 20. Clamp; 30. Fixing bolt; 40. Second sealing member; 50. Locking bolt; 60. Third sealing member; 70. Waterproof gasket; 80. Locking nut; 90. Radial sealing ring; 100. Slurry discharge pipe; 101. Connecting lug; 102. Flange joint. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are 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.

[0022] The features of the terms "first" and "second" in the specification and claims of the present invention may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0023] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Combine the following Figure 1-Figure 3 , through specific embodiments and application scenarios, a composite pipe cable for slurry transportation provided by an embodiment of the present invention is described in detail.

[0026] In view of the problems of single function and low integration of traditional transport pipes, the slurry transport composite pipe cable provided by the present invention can transmit power and communications to underwater operating equipment such as deep-sea mining vehicles while realizing slurry transportation, with high integration and cost savings.

[0027] like Figure 1As shown, the present invention provides a composite pipe cable for transporting slurry, comprising: a transport pipe 1, an optical cable 2, a socket fixing plate 3, an optical socket 4, a sheath 5 and a protective shell 6. The end of the transport pipe 1 is used to be connected to a slurry discharge pipe 100 on a deep-sea mining vehicle to transport slurry.

[0028] like Figure 2 As shown, the sheath 5 is sleeved on the outside of the transport pipe 1. Both ends of the protective shell 6 are penetrated. The protective shell 6 is used to be sleeved on the connection between the transport pipe 1 and the slurry discharge pipe 100. One end of the protective shell 6 is sealed and connected to the sheath 5, and the socket fixing plate 3 is sealed and installed on the other end of the protective shell 6.

[0029] like Figure 1 As shown, the photoelectric socket 4 is sealed and inserted into the socket fixing plate 3. The photoelectric cable 2 is inserted into the gap between the transport pipe 1 and the sheath 5 and is electrically connected to the photoelectric socket 4. The photoelectric socket 4 is used to be electrically connected to the underwater photoelectric flying line.

[0030] It is understandable that the transport pipe 1 is a flexible pipe to adapt to the impact of seawater and facilitate its lowering and recovery. Figure 1 As shown, the slurry discharge pipe 100 can be welded to the slurry discharge port of the deep-sea mining vehicle by means of a flange joint 102, so that the deep-sea mining vehicle can discharge the slurry from the slurry discharge pipe 100 after drilling the slurry. The end of the transport pipe 1 is butted with the slurry discharge pipe 100, so that the slurry is transported from the inside of the transport pipe 1 to the sea surface.

[0031] like Figure 2 As shown, the outer part of the transport tube 1 is sheathed with a sheath 5, which is used to provide physical protection for the photoelectric cable 2 and to enhance the bearing strength of the transport tube 1 to a certain extent. There are a plurality of photoelectric cables 2, which are twisted on the outer part of the transport tube 1 along the circumference of the transport tube 1. Figure 1 and Figure 3 As shown, the photoelectric cable 2 is inserted into the gap between the transport tube 1 and the sheath 5, and an electrical connector 21 is provided at the end of the photoelectric cable 2. The electrical connection is achieved through the electrical connector 21 and the photoelectric socket 4.

[0032] Specifically, Figure 1 As shown, both ends of the protective shell 6 have openings. The protective shell 6 is sleeved on the end of the sheath 5. The end of the photoelectric cable 2, the connection interface of the slurry discharge pipe 100 and the transport pipe 1 are all located in the protective shell 6, so as to achieve sealing protection for the above structure through the protective shell 6. Among them, the end of the protective shell 6 close to the sheath 5 is tapered to adapt to the outer diameter of the sheath 5. The end of the protective shell 6 close to the sheath 5 is sealed and connected to the outer wall of the sheath 5, and the socket fixing plate 3 is sealed and fixed to the other end of the protective shell 6. Optionally, the socket fixing plate 3 is perpendicular to the axis of the transport pipe 1 to facilitate the docking of the photoelectric socket 4 fixed on the socket fixing plate 3 and the underwater photoelectric flying line.

[0033] The socket fixing plate 3 is used to provide support for the photoelectric socket 4. Figure 1 As shown, there are several photoelectric sockets 4, and several photoelectric sockets 4 are evenly distributed on the socket fixing plate 3 to improve the power and communication transmission capacity of the composite pipe cable for slurry transportation. The electrical connectors 21 of several photoelectric cables 2 are electrically connected to several photoelectric sockets 4 in a one-to-one correspondence, and several underwater photoelectric flying lines are electrically plugged into several photoelectric sockets 4 in a one-to-one correspondence. Electric power and photoelectric communication signals are transmitted to the photoelectric socket 4 through the photoelectric cable 2, and electric power and photoelectric communication signals are transmitted to the underwater photoelectric flying line through the photoelectric socket 4, thereby realizing the power and communication transmission function of the composite pipe cable for slurry transportation. Optionally, the photoelectric socket 4 is a dry photoelectric socket 4. Compared with the traditional underwater wet plug-in socket, the dry photoelectric socket 4 is more convenient to operate and has lower cost.

[0034] The present invention provides a composite pipe-cable for slurry transportation, which connects the end of a transportation pipe 1 with a slurry discharge pipe 100 on a deep-sea mining vehicle so as to transport the slurry to the sea surface through the transportation pipe 1; a protective shell 6 is sleeved at the connection between the transportation pipe 1 and the slurry discharge pipe 100 to provide waterproof protection for a photoelectric cable 2; a socket fixing plate 3 is sealed and fixed to the protective shell 6 to provide support for a photoelectric socket 4; the photoelectric cable 2 passes through a gap between a sheath 5 and the transportation pipe 1 to be electrically connected to the photoelectric socket 4; the photoelectric socket 4 is electrically connected to an underwater photoelectric flying line, so that power and photoelectric signals are transmitted to the underwater photoelectric flying line through the photoelectric cable 2; the entire composite pipe-cable for slurry transportation can realize the transportation of slurry while also realizing the power and communication transmission functions with the underwater photoelectric flying line, has diversified functions, reduces the number of underwater pipelines, occupies a small space, has a high degree of integration, and saves costs.

[0035] like Figure 1 As shown, the composite pipe cable for slurry transportation also includes a pipe joint 7 and a first sealing member 8. The end of the transport pipe 1 is used to be nested in the slurry discharge pipe 100. The pipe joint 7 is fixedly sleeved on the transport pipe 1 and is used to be fixedly connected to the connecting lug 101 on the slurry discharge pipe 100. The first sealing member 8 is used to seal the gap between the pipe joint 7 and the connecting lug 101.

[0036] Specifically, the end of the transport pipe 1 is nested in the end of the slurry discharge pipe 100 away from the deep-sea mining vehicle, so that the interior of the slurry discharge pipe 100 is connected to the interior of the transport pipe 1. The pipe joint 7 is sleeved on the outside of the transport pipe 1, and the end of the pipe joint 7 can be locked on the connection lug 101 of the slurry discharge pipe 100 by fasteners such as self-locking screws. The transport pipe 1 and the slurry discharge pipe 100 are fixedly connected by the pipe joint 7, so that during the process of slurry transportation, the two will not be thrown off due to the impact force of the slurry, ensuring the stability of the connection between the transport pipe 1 and the slurry discharge pipe 100.

[0037] The first sealing member 8 is sandwiched between the connecting lug 101 and the pipe joint 7. Under the locking action of fasteners such as self-locking screws, the first sealing member 8 blocks the gap between the connecting lug 101 and the pipe joint 7, thereby achieving sealed and waterproof protection for the optoelectronic cable 2 in the protective shell 6, and preventing seawater from penetrating into the protective shell 6. Optionally, the first sealing member 8 is a rubber O-ring, a polyurethane sealing ring, or a mechanical sealing ring.

[0038] In some embodiments, Figure 2 As shown, the outer wall of the transport tube 1 is provided with a first tensile armor layer 11 and a second tensile armor layer 12 in sequence from the inside to the outside along the radial direction of the transport tube 1. The optical cable 2 is passed through the gap between the second tensile armor layer 12 and the sheath 5.

[0039] The first tensile armor layer 11 and the second tensile armor layer 12 are sequentially arranged in the radial direction of the transport pipe 1 to improve the rigidity of the transport pipe 1, thereby increasing the carrying capacity of the transport pipe 1. The first tensile armor layer 11 and the second tensile armor layer 12 can reliably maintain the radial shape of the transport pipe 1 and avoid blockage of the transport pipe 1 at the curved section. At the same time, the photoelectric cable 2 is overlapped on the outer wall of the second tensile armor layer 12, so that the first tensile armor layer 11 and the second tensile armor layer 12 are used as the main load-bearing components to bear the gravity of the photoelectric cable 2 and the sheath 5, and the load-bearing of the transport pipe 1 is reduced as much as possible to ensure the overall stability of the entire slurry transport composite pipe cable. When the slurry transport composite pipe cable has sufficient overall strength, the slurry transport composite pipe cable can also be used as a hoisting cable for underwater operation equipment, realizing the functional diversification of the slurry transport composite pipe cable. Optionally, the first tensile armor layer 11 and the second tensile armor layer 12 can be a steel wire armor layer, a stainless steel armor layer or an aluminum alloy armor layer.

[0040] In some embodiments, the composite umbilical cable for slurry transportation further comprises a bonding member. Figure 1 As shown, the ends of the first tensile armor layer 11 and the second tensile armor layer 12 are respectively anchored to the pipe joint 7. The adhesive is poured into the connection gap between the pipe joint 7 and the first tensile armor layer 11 and the second tensile armor layer 12.

[0041] It is understandable that the first tensile armor layer 11 and the second tensile armor layer 12 have sufficient anchoring length to ensure the stability of the anchoring of the first tensile armor layer 11 and the second tensile armor layer 12. The adhesive is poured into the connection gap between the pipe joint 7 and the first tensile armor layer 11 and the second tensile armor layer 12 to increase the stability of the connection between the pipe joint 7 and the first tensile armor layer 11 and the second tensile armor layer 12, so that the pipe joint 7 and the first tensile armor layer 11 and the second tensile armor layer 12 are formed into one body, thereby ensuring the stability of the connection between the transport pipe 1 and the slurry discharge pipe 100. Optionally, the adhesive is a structural adhesive.

[0042] In some embodiments, specifically, Figure 1 As shown, the composite pipe cable for slurry transportation further includes a conical sealing ring 9 and a sealing bolt 10. The sheath 5 has a sealing baffle 51. The end of the protective shell 6 close to the sheath 5 has a connecting edge 13. The connecting edge 13 and the end surface of the protective shell 6 form an abutting surface. The conical sealing ring 9 is arranged on the connecting edge 13. The sealing bolt 10 is passed through the sealing baffle 51 and the connecting edge 13 to press the conical sealing ring 9 against the abutting surface.

[0043] Specifically, Figure 1 As shown, the sealing baffle 51 is convexly arranged on the outer wall of the sheath 5 to facilitate the sealing connection between the sheath 5 and the protective shell 6. The connecting edge 13 is gradually expanded to adapt to the conical sealing ring 9. The conical sealing ring 9 is sleeved on the sheath 5 and located inside the connecting edge 13. The sealing baffle 51 and the connecting edge 13 are locked together by the sealing bolt 10. Under the locking action of the sealing bolt 10, the conical sealing ring 9 is tightly abutted against the abutting surface, and the conical sealing ring 9 blocks the gap between the sheath 5 and the protective shell 6, thereby achieving sealed and waterproof protection for the protective shell 6 and the optoelectronic cable 2 in the sheath 5, and preventing seawater from penetrating into the protective shell 6 from the gap between the sheath 5 and the protective shell 6.

[0044] In some embodiments, Figure 1 As shown, the composite pipe cable for transporting slurry further includes a clamp 20 and a fixing bolt 30. The sheath 5 has a fixing plate 52 for the clamp 20. The end of the protective shell 6 close to the sheath 5 has a limiting edge 14 connected to the connecting edge 13. The clamp 20 is clamped on the sheath 5 and is located in the area surrounded by the limiting edge 14, the sealing baffle 51 and the fixing plate 52 of the clamp 20. The fixing bolt 30 is passed through the fixing plate 52 of the clamp 20 and the limiting edge 14 to press the clamp 20 against the sealing baffle 51.

[0045] It is understandable that the clamp 20 is clamped on the outside of the sheath 5 to limit the radial movement of the transport pipe 1 through the clamp 20, thereby ensuring the axial stability of the entire slurry transport composite cable. Optionally, the clamp 20 can be a jacket. The jacket is sleeved on the outside of the sheath 5 and extends a certain length along the axial direction of the sheath 5. Figure 1 As shown, the limit edge 14 is connected to the connecting edge 13. The limit edge 14 is in contact with the outer wall of the jacket. The sealing baffle 51 and the clamp fixing plate 52 are arranged at intervals along the axial direction of the jacket 5. The jacket is clamped between the sealing baffle 51 and the clamp fixing plate 52. The clamp fixing plate 52 and the limit edge 14 are locked together by the fixing bolts 30. Under the locking action of the fixing bolts 30, the jacket is tightly against the sealing baffle 51, so as to limit the radial movement of the transport pipe 1 while further improving the sealing performance between the protective shell 6 and the jacket 5.

[0046] like Figure 1As shown, the composite pipe cable for transporting slurry further includes a second sealing member 40. The second sealing member 40 is disposed between the socket fixing plate 3 and the protective shell 6, and is used to seal the gap between the socket fixing plate 3 and the protective shell 6.

[0047] Specifically, a lug is protruded from the outer wall of the protective shell 6 at one end close to the socket fixing plate 3. The socket fixing plate 3 and the lug can be fixedly connected by a plurality of bolts. The second seal 40 is sandwiched between the lug and the socket fixing plate 3. Under the locking action of the plurality of bolts, the second seal 40 blocks the gap between the socket fixing plate 3 and the protective shell 6, thereby achieving sealed and waterproof protection for the photoelectric cable 2 in the protective shell 6, and preventing seawater from penetrating into the protective shell 6 from the gap between the socket fixing plate 3 and the protective shell 6. Optionally, the second seal 40 is a rubber O-ring, a polyurethane seal ring or a mechanical seal ring.

[0048] In some embodiments, Figure 1 As shown, the composite pipe cable for slurry transportation further includes a locking bolt 50 and a third sealing member 60. The socket fixing plate 3 has a through hole for the slurry discharge pipe 100 to pass through. The locking bolt 50 is passed through the socket fixing plate 3 and is used to lock the socket fixing plate 3 to the connecting lug 101 on the slurry discharge pipe 100. The third sealing member 60 is used to seal the gap between the socket fixing plate 3 and the connecting lug 101.

[0049] like Figure 1 As shown, the slurry discharge pipe 100 is provided with a connecting lug 101. In this embodiment, the socket fixing plate 3 is sleeved on the slurry discharge pipe 100. The socket fixing plate 3 is locked on the connecting lug 101 by the locking bolt 50 to further increase the stability of the connection between the slurry transport composite pipe cable and the slurry discharge pipe 100, and at the same time, the photoelectric socket 4 fixed on the socket fixing plate 3 is conveniently connected to the underwater photoelectric flying line on the deep-sea mining vehicle or other underwater equipment, ensuring that the photoelectric socket 4 has stable space.

[0050] like Figure 1 As shown, the third sealing member 60 is sandwiched between the connecting lug 101 and the socket fixing plate 3. Under the locking action of the locking bolt 50, the third sealing member 60 blocks the gap between the socket fixing plate 3 and the slurry discharge pipe 100, thereby achieving sealed and waterproof protection for the photoelectric cable 2 in the protective shell 6, and preventing seawater from penetrating into the protective shell 6 from the gap between the socket fixing plate 3 and the slurry discharge pipe 100. Optionally, the third sealing member 60 is a rubber O-ring or a polyurethane sealing ring.

[0051] Specifically, Figure 3As shown, the composite pipe cable for slurry transportation further includes a waterproof gasket 70 and a locking nut 80. The socket fixing plate 3 is provided with a mounting hole 31. The photoelectric socket 4 is inserted into the mounting hole 31. The waterproof gasket 70 and the locking nut 80 are respectively sleeved on the photoelectric socket 4. The socket fixing plate 3 is sandwiched between the waterproof gasket 70 and the locking nut 80. As the locking nut 80 is screwed in, the photoelectric socket 4 is locked to the socket fixing plate 3.

[0052] It is understandable that there are multiple mounting holes 31. Multiple photoelectric sockets 4 are arranged in a one-to-one correspondence in the multiple mounting holes 31. The waterproof gasket 70 is fixedly sleeved on the photoelectric socket 4 and is located on the outside of the socket fixing plate 3. The locking nut 80 is slidably sleeved on the photoelectric socket 4 and is located on the inside of the socket fixing plate 3. The waterproof gasket 70 is locked to the outer side of the socket fixing plate 3 by the locking nut 80 to firmly fix the photoelectric socket 4 on the socket fixing plate 3, effectively ensuring the stability of the connection between the photoelectric socket 4 and the socket fixing plate 3; at the same time, the waterproof gasket 70 is used to achieve axial sealing and waterproof protection of the photoelectric socket 4.

[0053] Furthermore, in some embodiments, Figure 3 As shown, a radial sealing ring 90 is provided on the wall of the mounting hole 31 for sealing the gap between the photoelectric socket 4 and the wall of the mounting hole 31 .

[0054] Specifically, the outer wall of the radial sealing ring 90 is circumferentially fixed to the hole wall of the mounting hole 31, and the photoelectric socket 4 is inserted through the radial sealing ring 90, thereby achieving radial sealing and waterproof protection for the photoelectric socket 4, preventing seawater from penetrating into the protective shell 6 from the gap between the photoelectric socket 4 and the hole wall of the mounting hole 31.

[0055] Optionally, multiple radial sealing rings 90 may be provided, and the multiple radial sealing rings 90 are sequentially provided along the extension direction of the mounting hole 31 to improve the radial sealing performance of the photoelectric socket 4. Optionally, the radial sealing ring 90 may be an O-type sealing ring.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A composite pipe cable for slurry transportation, characterized in that: include: A transport pipe, a photoelectric cable, a socket fixing plate, a photoelectric socket, a sheath and a protective shell, wherein the end of the transport pipe is used to be connected to a slurry discharge pipe of a deep-sea mining vehicle to transport the slurry; The sheath is sleeved on the outside of the transport pipe, and the two ends of the protective shell are penetrated. The protective shell is used to be sleeved on the connection between the transport pipe and the slurry discharge pipe. One end of the protective shell is sealed and connected to the sheath, and the socket fixing plate is sealed and installed on the other end of the protective shell. The photoelectric socket is sealed and inserted into the socket fixing plate, the photoelectric cable is passed through the gap between the transport tube and the sheath, and is electrically connected to the photoelectric socket, and the photoelectric socket is used to be electrically connected to the underwater photoelectric flying line.

2. The composite pipe cable for slurry transportation according to claim 1, characterized in that: It also includes a pipe joint and a first seal. The end of the transport pipe is used to be nested in the slurry discharge pipe. The pipe joint is fixedly sleeved on the transport pipe and is used to be fixedly connected to the connecting lug on the slurry discharge pipe. The first seal is used to seal the gap between the pipe joint and the connecting lug.

3. The composite pipe cable for slurry transportation according to claim 2, characterized in that: The outer wall of the transport tube is provided with a first tensile armor layer and a second tensile armor layer in sequence from the inside to the outside along the radial direction of the transport tube, and the photoelectric cable is passed through the gap between the second tensile armor layer and the sheath.

4. The composite pipe cable for slurry transportation according to claim 3, characterized in that: It also includes a bonding member, the ends of the first tensile armor layer and the second tensile armor layer are respectively anchored to the pipe joint, and the bonding member is poured into the connection gap between the pipe joint and the first tensile armor layer and the second tensile armor layer.

5. The composite pipe cable for slurry transportation according to claim 1, characterized in that: It also includes a conical sealing ring and a sealing bolt. The sleeve has a sealing baffle. The protective shell has a connecting edge at one end close to the sleeve. The connecting edge and the end face of the protective shell form an abutting surface. The conical sealing ring is arranged on the connecting edge. The sealing bolt passes through the sealing baffle and the connecting edge to press the conical sealing ring against the abutting surface.

6. The composite pipe cable for slurry transportation according to claim 5, characterized in that: It also includes a clamp and a fixing bolt. The sleeve has a clamp fixing plate. The end of the protective shell close to the sleeve has a limiting edge connected to the connecting edge. The clamp is clamped on the sleeve and is located in the area surrounded by the limiting edge, the sealing baffle and the clamp fixing plate. The fixing bolt passes through the clamp fixing plate and the limiting edge to press the clamp against the sealing baffle.

7. The composite cable for transporting slurry according to claim 1, characterized in that: It also includes a second sealing member, which is arranged between the socket fixing plate and the protective shell and is used to seal the gap between the socket fixing plate and the protective shell.

8. The composite pipe cable for slurry transportation according to claim 1, characterized in that: It also includes a locking bolt and a third sealing member, the socket fixing plate has a through hole for the slurry discharge pipe to pass through, the locking bolt is passed through the socket fixing plate, and is used to lock the socket fixing plate to the connecting lug on the slurry discharge pipe, and the third sealing member is used to seal the gap between the socket fixing plate and the connecting lug.

9. The composite pipe cable for slurry transportation according to claim 1, characterized in that: It also includes a waterproof gasket and a locking nut. The socket fixing plate is provided with a mounting hole, the photoelectric socket is inserted into the mounting hole, the waterproof gasket and the locking nut are respectively sleeved on the photoelectric socket, and the socket fixing plate is clamped between the waterproof gasket and the locking nut. As the locking nut is screwed in, the photoelectric socket is locked to the socket fixing plate.

10. The composite umbilical cable for slurry transportation according to claim 9, characterized in that: The hole wall of the mounting hole is provided with a radial sealing ring for sealing the gap between the photoelectric socket and the hole wall of the mounting hole.

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