CN217789222U - Integrated deep-sea mineral and power mixed-transportation light composite flexible cable pipe - Google Patents

Abstract

The cable pipe wall structure comprises a wear-resistant layer, a supporting layer, an inner sheath protective layer, a tensile layer, an anti-abrasion layer, a middle sheath protective layer, a power communication layer and an outer sheath protective layer from inside to outside, and all the layers are in close contact but are not bonded. The wear-resistant layer is formed by a high-wear-resistant polymer material, and the supporting layer is made of a stainless steel material and is in a large-angle spiral interlocking structure; the tensile layer is formed by spirally winding a plurality of fiber prefabricated strips with rectangular sections, and the spiral winding angles of the two tensile layers are opposite; a plurality of small-diameter photoelectric transmission units are uniformly distributed in the power communication layer, the photoelectric transmission units are spirally wound at an angle higher than that of the tensile layer, and light materials are filled between the adjacent photoelectric transmission units; the utility model discloses carry power in defeated ore deposit in the cable pipe body, the cable pipe wall, the cable pipe wholly has less bend radius to make laying recovery efficiency and sea area adaptability of cable pipe promote by a wide margin among the deep sea mining process.

Description

Integrated deep-sea mineral and power mixed-transportation light composite flexible cable pipe

Technical Field

The utility model belongs to the technical field of deep sea mining flexible cable pipe technique and specifically relates to an integral type deep sea mineral mixes defeated compound flexible cable pipe of light with power.

Background

The development of deep sea mineral resources has important strategic significance and national public interest attribute. Among the discovered deep-sea mineral resources, the polymetallic nodule, the cobalt-rich crust, the polymetallic sulfide and the like which have great application value to human production and life are mainly present in irregular geometric shapes on the international seabed in the water depth of 300-6000 m. After the minerals are collected and crushed by the mining car, the minerals need to be lifted to a water surface production ship through a long-distance pipeline, and meanwhile, a power cable needs to be extended out of the production ship to provide energy support for the mining car, so that the deep sea mineral transmission pipeline and the deep sea power cable are important equipment for ensuring the safe development of deep sea mineral resources.

In the current conventional mining scheme, the pipe and power cable are separate but are ultimately connected to the same mining collection vehicle. Therefore, in the laying and recycling process, the pipeline and the power cable need to be launched in different modes such as a production ship moon pool and a side respectively, and then are connected back underwater, so that the efficiency is seriously low and the operation risk is improved. The power cable is less for defeated ore deposit pipeline diameter, if with the direct outside whole winding of power cable on defeated ore deposit body, again can influence its whole dynamic characteristic in the sea water because the appearance is not smooth, but also can cause consequence such as operation cost increase, body stability variation.

Meanwhile, in the current ultra-deep water mine pipe conveying scheme, most pipe bodies adopt large-caliber steel pipelines, so that a section of steel pipe needs to be connected and then put down on a production ship, and the serious low efficiency of the pipeline laying process is caused; when sudden conditions such as typhoon occur, the production ship can not timely recover the steel pipes, and the long-distance steel pipes are dragged to carry out transfer operation, so that safety risks exist. Therefore, the adoption of the fully flexible ore conveying pipeline is a better solution, the full flexible ore conveying pipeline can be quickly lowered and recovered through a reel on a production ship, and meanwhile, the full flexible ore conveying pipeline has better marine environment adaptability.

Therefore, how to ensure the full flexibility characteristic of the cable pipe while avoiding the separation of the deep-sea mineral conveying pipeline and the power cable is an urgent problem to be solved. In the field of oil and gas development, research and application are carried out on typical non-bonded flexible pipelines, and although each reinforcing layer can resist the load borne by the pipeline and has good flexibility, the reinforcing layers cannot simultaneously bear the function of power transmission; the existing non-adhesive bundling tube and cable configuration concept is that a plurality of steel tubes are usually filled in the middle of a solid cable, and although the problem that the tubes and the cables exist at the same time is solved, the steel tubes are too small in size and cannot be used for conveying deep sea minerals or oil and gas resources; the inventor also proposes a double-layer pipeline form, a power or signal transmission cable can be filled in a pipe wall cavity, but the main body of the pipeline is a steel pipe, the diameter of the power/signal cable is relatively large, and the pipeline has no flexibility; there are also bonding type pipe configurations, the basic principle is to bond the materials of each layer together through high temperature curing, but the bonding type pipe is easy to delaminate and tear in dynamic complex environment application, and is not suitable for mining working conditions which are suspended in deep sea environment for a long time and swing continuously. It can be seen that all kinds of pipe cable concepts that have now been proposed can't directly be used for solving the utility model relates to a problem needs to provide one kind creatively can enough combine deep sea mineral transport and power transmission function together, and does not influence the whole solution of flexible characteristics of pipeline.

SUMMERY OF THE UTILITY MODEL

The applicant aims at the defects in the prior art and provides an integrated deep sea mineral and power mixed transportation light composite flexible cable pipe, so that an original relatively independent mineral conveying pipeline and a power cable are integrated into a whole, and the cable pipe has a smaller bending radius, and the laying recovery efficiency and sea area adaptability of the cable pipe are effectively improved.

The utility model discloses the technical scheme who adopts as follows:

the utility model provides a deep sea mineral and power integration thoughtlessly defeated compound flexible cable pipe of light, includes the wearing layer of hollow thin wall cylinder structure, the outside parcel in proper order of wearing layer has supporting layer, inner sheath protective layer, multilayer tensile layer, abrasionproof layer, well sheath protective layer, power communication layer and oversheath protective layer, and in close contact with becomes integrative between each layer, allows relative slip between each layer, and the inside of every layer tensile layer is provided with the abrasionproof layer, the tensile layer is spiral winding, and the outside parcel on outermost abrasionproof layer has well sheath protective layer, power communication layer is located the outside of cable pipe, and power communication layer inside has contained the same little cross-section photoelectric transmission unit of several diameters, and the power communication in situ, packing has light filling material between the adjacent photoelectric transmission unit, and the outside parcel on power communication layer has the oversheath protective layer.

As a further improvement of the technical scheme:

the photoelectric transmission units are uniformly dispersed in the power communication layer.

The photoelectric transmission units are uniformly distributed along the circumferential direction of the cable tube, and the spiral winding angle of the photoelectric transmission units is higher than that of the tensile layer.

The light filling material is a foaming material.

The wear-resistant layer is formed by rubber and a high-abrasion-resistant polymer material of ultra-high molecular polyethylene, and the inner wall surface of the wear-resistant layer is directly contacted with high-speed flowing mineral slurry.

The supporting layer is formed by interlocking and winding stainless steel materials and special-shaped section large-angle spiral.

The inner sheath protective layer is formed by extruding polyethylene materials.

The tensile layer is formed by spirally winding a plurality of fiber prefabricated strips with the same cross section by the same tension, and the cross sections of the fiber strips are rectangular; the tensile layer is provided with two layers, and the fiber strip forms are the same but the winding angles are opposite.

The anti-abrasion layer is formed by spirally winding an ultrathin belt made of non-woven fabric wear-resistant materials.

The middle sheath protective layer and the outer sheath protective layer are both formed by extruding polyethylene materials.

The beneficial effects of the utility model are as follows:

the utility model has the advantages of compact and reasonable structure, convenient operation through the pipeline and the carrying cable structure that adopt the integral type, has realized that the integration of deep sea mineral and power is thoughtlessly defeated, has solved the current defeated ore deposit pipeline and the power cable branch and has put the serious low problem of recovery efficiency and marine environment adaptability of laying aside that causes: the utility model discloses on defeated ore deposit hose reinforcing structure layer basis, under the condition that does not influence total transmission power, with power cable homodisperse for the same small size's copper strands and optical fiber unit, then the spiral winding is on the well sheath protective layer in the body outside, and last rethread oversheath protective layer carries out cladding and external insulation with whole cable pipe to the external form that forms defeated ore deposit in the cable pipe body, carries power in the cable pipe wall is a holistic effect. Meanwhile, after the power cables are uniformly dispersed, the thickness of the cable tube wall and the outer diameter of the cable tube are reduced; and light foaming materials are filled between the copper stranded wires and the optical fiber units in the power communication layer, so that the power communication layer keeps the original form in the integral movement of the cable pipe, and the integral stability of the cable pipe is improved.

Realized the cable pipe when having higher structure bearing capacity, wholly have less bend radius, solved and adopted the reel to carry out the high efficiency and transfer and retrieve the problem of required cable pipe full flexibility: the utility model has a multi-layer non-bonded composite structure, and under the action of bending load, all layers can slide mutually, so that the whole body has smaller bending rigidity; the supporting layer, the tensile layer, the power layer, the wear-resistant layer and other structural reinforcing layers in the cable tube are all in a spiral winding form, so that the flexibility of the cable tube is further enhanced; and various sheath layers are made of polyethylene materials capable of generating large deformation, so that the whole cable pipe can have a smaller bending radius. Meanwhile, the supporting layer is arranged in the cable tube, so that negative pressure applied to the cable tube in the mineral lifting process and external radial extrusion force possibly applied to the cable tube in the in-place process can be resisted; the tensile layer is made of fiber prefabricated materials, the material is light in weight but high in tensile strength, so that the cable pipe integrally has high axial tensile capacity, the spiral winding angle of the photoelectric transmission unit in the power communication layer is larger than that of the tensile layer, the tensile force of the cable pipe is basically borne by the tensile layer, and the cable pipe is guaranteed to have high structural bearing capacity and does not influence power and signal transmission safety.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of another view angle of the present invention.

Fig. 3 is a side view of the present invention.

Fig. 4 is a front view of the present invention.

Fig. 5 isbase:Sub>A full sectional view taken along sectionbase:Sub>A-base:Sub>A in fig. 4.

Fig. 6 is a longitudinal sectional view of the present invention.

Wherein: 1. a wear resistant layer; 2. a support layer; 3. an inner sheath protective layer; 4. a tensile layer; 5. an anti-wear layer; 6. a middle sheath protective layer; 7. a power communication layer; 8. a photoelectric transmission unit; 9. a lightweight filler material; 10. and an outer sheath protection layer.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1-6, the deep sea mineral and power integrated mixed transportation light composite flexible cable pipe of this embodiment includes a wear-resistant layer 1 of a hollow thin-wall cylinder structure, a supporting layer 2, an inner sheath protective layer 3, a multilayer tensile layer 4 are sequentially wrapped on the outside of the wear-resistant layer 1, an anti-abrasion layer 5, a middle sheath protective layer 6, a power communication layer 7 and an outer sheath protective layer 10, the layers are in close contact with each other to form a whole, relative sliding is allowed between the layers, the anti-abrasion layer 5 is arranged inside each tensile layer 4, the tensile layer 4 is spirally wound, the middle sheath protective layer 6 is wrapped on the outside of the anti-abrasion layer 5 on the outermost layer, the power communication layer 7 is located on the outside of the cable pipe, a plurality of small-section photoelectric transmission units 8 with the same diameter are included inside the power communication layer 7, a light filling material 9 is filled between adjacent photoelectric transmission units 8 in the power communication layer 7, and the outer sheath protective layer 10 is wrapped on the outside of the power communication layer 7.

The photoelectric transmission units 8 are uniformly dispersed in the power communication layer 7.

The photoelectric transmission units 8 are uniformly distributed along the circumferential direction of the cable tube, and the spiral winding angle of the photoelectric transmission units 8 is higher than that of the tensile layer 4.

The lightweight filling material 9 is a foamed material.

The wear-resistant layer 1 is formed by rubber and a high-abrasion-resistant polymer material of ultra-high molecular polyethylene, and the inner wall surface of the wear-resistant layer 1 is directly contacted with mineral slurry flowing at high speed.

The supporting layer 2 is made of stainless steel materials and is formed by interlocking and winding a large-angle spiral with a special-shaped section.

The inner sheath protective layer 3 is formed by extruding polyethylene materials.

The tensile layer 4 is formed by spirally winding a plurality of fiber prefabricated strips with the same cross section by the same tension, and the cross sections of the fiber strips are rectangular; the tensile layer 4 is provided with two layers, and the fiber strip forms are the same but the winding angles are opposite.

The wear-resistant layer 5 is formed by spirally winding an ultrathin belt made of non-woven fabric wear-resistant materials.

The middle sheath protective layer 6 and the outer sheath protective layer 10 are both formed by extruding polyethylene materials.

The utility model discloses a concrete structure and function as follows:

as shown in fig. 1, the deep sea mineral and power integrated mixed transportation light composite flexible cable pipe comprises a wear-resistant layer 1 positioned at the innermost side, wherein the wear-resistant layer 1 is formed by high wear-resistant polymer materials such as rubber, ultra-high molecular polyethylene and the like and is in direct contact with high-speed flowing mineral slurry, so that the high-speed flowing mineral slurry is effectively prevented from directly generating an abrasion effect on other structural layers at the outer side; the wear-resistant layer 1 is relatively thin and attached to the inner side of the supporting layer 2, can deform along with the supporting layer, and has good flexibility.

The supporting layer 2 is located on the outer side of the wear-resistant layer 1 and is formed by spirally interlocking and winding a stainless steel material and a special-shaped section at a large angle, the stainless steel material has a small bending radius and strong radial extrusion resistance, the interlocking form can enable the shape to be stable in the dynamic operation process, and the stainless steel material has a good wear-resistant effect on high-speed erosion of ore pulp. Provides a passage for mineral transport and provides radial stiffness support without affecting cable bend. An inner sheath protective layer 3 is coated outside the supporting layer 2 and is formed by extruding polyethylene materials, the inner slurry is sealed and isolated, and meanwhile, extrusion force from the outside can be uniformly transmitted to the inner supporting layer 2.

And a tensile layer 4 is spirally wound outside the inner sheath protective layer 3, and is formed by spirally winding a plurality of fiber prefabricated strips with the same rectangular cross section at the same tension. The prefabricated strip of fibre can be formed by the prefabricated cellosilk that the light intensity of quality is high such as aramid fiber, glass fiber, carbon fiber, because fibrous material has the characteristics that specific strength is high, consequently makes the cable pipe dead weight obtain descending by a wide margin, and whole tensile ability is showing the reinforcing again simultaneously to make the cable pipe can be used for the vertical lift of thousands of meters mineral. When the fiber prefabricated strip is pulled, radial extrusion force is generated on the inner sheath protective layer 3 and is further transmitted to the supporting layer 2, so that the axial tensile effect of the fiber prefabricated strip is realized. The fiber prefabricated strip has a certain spiral winding angle, so that the fiber prefabricated strip can be allowed to generate a smaller bending radius without strength damage, and meanwhile, the integral stability is improved. The tensile layer 4 typically comprises two layers, each layer having the same dimensions of the preformed fiber strands but substantially opposite helical winding angles, in order to ensure that the overall torsional imbalance does not occur when the cable is axially pulled.

The anti-abrasion layer 5 is arranged at the position directly contacting with the tensile layer 4 and is formed by spirally winding an ultrathin belt made of wear-resistant materials such as non-woven fabrics and the like, and the anti-abrasion layer has a very small friction coefficient. When the cable pipe actually runs, tensile layer 4 still can receive bending load's effect when bearing great pulling force, and the repeated friction and wear under the high extrusion force can be produced on inside supporting element surface, through setting up abrasionproof layer 5, can effectively alleviate the loss of tensile layer 4 and restrictive coating and avoid the fatigue failure that probably arouses.

The middle sheath protection layer 6 is coated outside the outermost anti-abrasion layer 5 and is formed by extruding polyethylene materials, the thickness is relatively small, and the anti-abrasion layer 4 is effectively isolated, and meanwhile, the middle sheath protection layer provides uniform support for winding of the outer power communication layer 7. From the abrasion resistant layer 1 to the intermediate sheath protective layer 6, a relatively stable reinforcing structure within the cable tube wall is formed.

The power communication layer 7 is wound on the outer layer of the middle protective sheath layer 6, and the layer is used for power and signal transmission required by mining equipment. The power communication layer 7 contains a plurality of small-section photoelectric transmission units 8 with basically the same diameter, which are uniformly dispersed in the power communication layer 7 and spirally wound on the middle sheath protective layer 6 at the same angle. By the uniform dispersion of the power cables, the total outer diameter of the cable tube is further reduced on the premise of not influencing the total transmission power, and the overall stability is improved; meanwhile, the spiral winding angle of the photoelectric transmission unit 8 is higher than that of the tensile layer 4, so that the axial tension is basically borne by the tensile layer 4, and the photoelectric transmission unit 8 can safely transmit power and signals. Light materials such as foam are filled in the power communication layer 7 and between the adjacent photoelectric transmission units 8, so that on one hand, the photoelectric transmission units 8 are ensured to keep stable relative positions under the condition of complex power of the cable pipe; on the other hand, the cable tube body is increased by a small weight as much as possible, and the effective tensile capacity of the cable tube is indirectly improved.

The outer layer of the power communication layer 7 is finally coated with an outer sheath protective layer 10 which is formed by extruding polyethylene materials and used for isolating and insulating external seawater, and meanwhile, the cable pipe is formed into a whole through the outer sheath protective layer 10, so that the effects that ore is conveyed in the cable pipe body, and the external form of power conveying in the cable pipe wall is integrated are achieved. In the cable structure, although the layers are not bonded and can slide relative to each other, the layers cannot exist independently and function, and need to be in contact with each other and can effectively transmit pressure, thereby forming a complete cable assembly.

The utility model discloses need develop based on traditional flexible pipeline manufacturing process and reform transform, the totality is made the flow and is followed inlayer to skin, and the shaping one deck then twines to the roller, then comes out from the roller and carries out the shaping of outer one deck again, repeats this flow and finishes up to the shaping of whole layers. Specifically, the wear-resistant layer 1 is made of a high polymer material, granular raw materials are heated to a molten state, then the raw materials are extruded and molded through a horizontal straight tubular mold with the wall thickness of 3-5 mm at high pressure, the molded wear-resistant layer 1 continuously penetrates through the center of a molding device of the supporting layer 2, the supporting layer 2 is a stainless steel strip plate with the wall thickness of 1-3 mm, the stainless steel strip plate is subjected to cold bending through 6-9 rollers, and finally four groups of pressing wheels are driven to lock the stainless steel strip plate through rotation of the device, a thin-wall cylinder supporting stator with the wall thickness not more than 3mm and the length not more than 1 meter is arranged at the center of the device, the supporting layer 2 is wound on the stator to be molded horizontally finally, and the wear-resistant layer 1 in the semi-molten state is arranged inside the supporting layer 2. The front end of the stator is provided with the air box which can exhaust air under the pressure of 0.2Mpa, and the air pressure in the wear-resistant layer 1 is higher than that in the outside, so that the wear-resistant layer slightly expands outwards in a semi-molten state to be attached to the inner wall of the supporting layer 2, which is an important manufacturing process for tightly contacting the metal supporting layer 2 and the inner wear-resistant layer 1. After the supporting layer 2 is formed, the extrusion forming of the high polymer inner sheath protective layer 3 is carried out by adopting the forming process the same as that of the wear-resistant layer 1, and the formed high polymer inner sheath protective layer is automatically attached to the outer wall of the supporting layer 2 due to the effects of thermal expansion and cold contraction. When the tensile layer 4 is formed, 80 steel wire horizontal type winches are adopted to integrally rotate along a certain direction, the fixed intercept of the spiral is realized through the matching of the advancing speed and the rotating speed of the pipe body, and then the uniform laying of the tensile layer 4 is realized. When the anti-abrasion layer 5 is formed, a double-roller wrapping machine is adopted, two non-woven fabric material belts with the width of 5 cm-10 cm and the thickness of not more than 0.5mm are wound on the outer side of the tensile layer 4 at a fixed tension and a large angle, and the non-woven fabric belts are ensured to completely cover the inner metal armor layer so as to ensure the anti-abrasion effect. The forming process of the protective layer 6 of the high polymer middle sheath is consistent with the forming process of the protective layer 3 of the inner sheath.

Considering that the photoelectric transmission units 8 and the light filling materials 9 are uniformly distributed and arranged in the power communication layer 7, the units are numerous and have different sizes, and the vertical forming needs to be carried out by adopting the transformed large vertical multi-roller cabling machine. From the lower supreme vertical through vertical cabling equipment of passing through of inside body, each photoelectric transmission unit 8, light filler material 9 twines respectively on roller separately, and all rollers are all placed on the bottom carousel of vertical cabling equipment, the rotation through bottom carousel and the perpendicular of inside body advance, make a plurality of different units with decide tension, decide that intercept evenly twines to the body on, there is tightening means vertical cabling machine top, with these units stable integration in the one deck, the cable body after the shaping passes and then twines to the roller from the cabling machine top. And finally, extruding the outer sheath protective layer 10 with the thickness of 8 mm-10 mm according to a forming process similar to that of the middle sheath protective layer 6, thereby finally forming the complete deep sea mineral and power integrated mixed transportation light composite flexible cable pipe.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims (10)

1. The light composite flexible cable pipe for mixed transportation of integrated deep sea minerals and power is characterized in that: wearing layer (1) including hollow thin wall cylinder structure, the outside parcel in proper order of wearing layer (1) has supporting layer (2), inner sheath protective layer (3), multilayer tensile layer (4), abrasionproof layer (5), well sheath protective layer (6), power communication layer (7) and oversheath protective layer (10), and in close contact with becomes integrative between each layer, allows relative slip between each layer, and the inside of every layer tensile layer (4) is provided with abrasionproof layer (5), tensile layer (4) are spiral winding, and outside parcel at outermost abrasionproof layer (5) has well sheath protective layer (6), power communication layer (7) are located the outside of cable pipe, and power communication layer (7) inside has contained several small cross section photoelectric transmission unit (8) that the diameter is the same, and power communication layer (7) are inside, it has light filling material (9) to fill between adjacent photoelectric transmission unit (8), and the outside parcel of power communication layer (7) has protective layer (10).

2. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the photoelectric transmission units (8) are uniformly dispersed in the power communication layer (7).

3. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the photoelectric transmission units (8) are uniformly distributed along the circumferential direction of the cable tube, and the spiral winding angle of the photoelectric transmission units (8) is higher than that of the tensile layer (4).

4. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the light filling material (9) is a foaming material.

5. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the wear-resistant layer (1) is formed by rubber and a high-abrasion-resistant polymer material of ultra-high molecular polyethylene, and the inner wall surface of the wear-resistant layer (1) is directly contacted with mineral slurry flowing at a high speed.

6. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the supporting layer (2) is formed by interlocking and winding stainless steel materials and special-shaped cross section large-angle spiral.

7. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the inner sheath protective layer (3) is formed by extruding polyethylene materials.

8. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the tensile layer (4) is formed by spirally winding a plurality of fiber prefabricated strips with the same cross section by the same tension, and the cross sections of the fiber strips are rectangular; the tensile layer (4) is provided with two layers, and the fiber strips are in the same form but are opposite in winding angle.

9. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the anti-abrasion layer (5) is formed by spirally winding an ultrathin belt made of non-woven fabric wear-resistant materials.

10. The integrated deep sea mineral and power mixed transportation light composite flexible cable pipe according to claim 1, characterized in that: the middle sheath protective layer (6) and the outer sheath protective layer (10) are both formed by extruding polyethylene materials.

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