Submarine cable with strong protection performance

Abstract

The utility model discloses a submarine cable with strong protection performance, which relates to the technical field of submarine cables and comprises an optical fiber bundle, an alkane layer is arranged on the circumferential outer wall of the optical fiber bundle, an inner sheath layer is arranged on the circumferential outer wall of the alkane layer, and a polycarbonate layer is arranged on the circumferential outer wall of the inner sheath layer. An aluminum waterproof layer is arranged on the circumferential outer wall of the polycarbonate layer, a supporting layer is arranged on the circumferential outer wall of the aluminum waterproof layer, the circumferential outer wall of the supporting layer is coated with an asphalt layer, and an outer sheath layer is arranged on the outer wall of the asphalt layer. According to the utility model, the first steel strand and the second steel strand are respectively arranged in the cable, so that the supporting capability and the self strength of the whole submarine cable can be further improved, the situation that the cable is broken when the cable is gnawed by large fishes at the seabed is avoided, and meanwhile, the thickness of the first steel strand located outside is greater than that of the second steel strand; therefore, the protection grade of the cable is further improved, and the requirement of laying the cable on the seabed is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to submarine cable technical field especially relates to the submarine cable that protective performance is strong. BACKGROUND

[0002] The submarine cable is the cable that insulating material is wrapped, is laid in the submarine, is used for telecommunication transmission. The submarine cable divides submarine communication cable and submarine power cable. The modern submarine cable is all using optical fiber as material, and transmission telephone and internet signal.

[0003] Through the search, the China utility model patent with the announcement number CN208368210U discloses a kind of submarine cable, it is related to cable technical field, its structure includes multiple conductive wire, aluminium plastic film tape, water-blocking filler, water-blocking tape, PE inner protective sleeve, steel wire armour layer and outer protective sleeve, the aluminium plastic film tape covers the multiple conductive wire, the water-blocking filler is used to fill the gap between conductive wire and aluminium plastic film tape, the water-blocking tape covers the aluminium plastic film tape, the PE inner protective sleeve covers the water-blocking tape, the steel wire armour layer covers the PE inner protective sleeve, the outer protective sleeve covers the steel wire armour layer.

[0004] It is found that the above-mentioned patent still has the following shortcomings by synthesizing prior art: the cable only sets a group of steel wire armour layer, and the protection and reinforcement effect is poor, which cannot effectively resist the biting of large fish in the submarine, and the cable is easy to break, affecting the normal signal transmission of the submarine cable. Therefore, a submarine cable with strong protection performance is needed to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a submarine cable with strong protection performance. The utility model has the advantages of further improving the support capacity and strength of the submarine cable by arranging first and second steel strands in the cable, avoiding cable breakage when the cable is bitten by large fish in the submarine, and further improving the protection level of the cable by using a first steel strand with a larger diameter than the second steel strand, thereby meeting the demand for laying the cable in the submarine.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] The submarine cable with strong protection performance includes an optical fiber bundle, an alkane layer is arranged on the circumferential outer wall of the optical fiber bundle, an inner sheath layer is arranged on the circumferential outer wall of the alkane layer, a polycarbonate layer is arranged on the circumferential outer wall of the inner sheath layer, an aluminum waterproof layer is arranged on the circumferential outer wall of the polycarbonate layer, a support layer is arranged on the circumferential outer wall of the aluminum waterproof layer, an asphalt layer is coated on the circumferential outer wall of the support layer, and an outer sheath layer is arranged on the outer wall of the asphalt layer.

[0008] Through the above technical scheme, the insulation, waterproof and corrosion resistance of the cable can be effectively ensured, the service life of the cable in the seabed is further improved, and the cable can stably work in the seabed.

[0009] The alkane layer is made of paraffin material.

[0010] Through the above technical scheme, the entire submarine cable has good insulation effect.

[0011] The inner sheath layer is made of copper pipe material, and the inner sheath layer is arranged between the alkane layer and the polycarbonate layer.

[0012] Through the above technical scheme, the copper sleeve or part of the internal organization is relatively close, has high hardness, and in addition, the copper pipe sheath also has corrosion resistance.

[0013] The supporting layer comprises a first steel strand and a second steel strand, and the first steel strand is located outside the second steel strand.

[0014] Through the above technical scheme, the supporting capacity and the strength of the entire submarine cable can be further improved through the two groups of steel strands.

[0015] The inner diameter of the first steel strand is greater than the inner diameter of the second steel strand, and the first steel strand and the second steel strand are circularly distributed at equal distances outside the aluminum waterproof layer.

[0016] Through the above technical scheme, the first steel strand located outside has a greater thickness than the second steel strand, so that the protection level of the cable is further improved, and the demand of laying the cable in the seabed is met.

[0017] The circumferential outer wall of the first steel strand is provided with an arc-shaped groove, the arc-shaped groove is arranged on the circumferential outer wall of the first steel strand, and the asphalt layer is filled in the arc-shaped groove.

[0018] Through the above technical scheme, the arc-shaped groove arranged on the outer wall of the first steel strand can better combine the asphalt layer, not only improves the sealing and corrosion resistance of the entire cable, but also ensures the supporting strength of the first steel strand.

[0019] The outer sheath layer is made of polyethylene material.

[0020] Through the above technical scheme: the polyethylene material has good electrical performance, environmental stress cracking resistance, chemical stability, good processing performance and light weight and the like.

[0021] The utility model further sets up, the circumference outer wall of outer sheath layer is provided with warning mark line, the warning mark line is in the circumference outer wall of outer sheath layer equidistance distribution, the color of warning mark line is orange.

[0022] Through the above technical scheme: the polyethylene material has good electrical performance, environmental stress cracking resistance, chemical stability, good processing performance and light weight and the like.

[0023] The utility model discloses the beneficial effect is:

[0024] The submarine cable with strong protection performance, by setting first steel strand and second steel strand in the cable respectively, can further improve the support capacity and strength of the whole submarine cable, avoid the cable from being broken when being eaten by large fish in the seabed, and the first steel strand outside has a larger diameter than the second steel strand, so that the protection level of the cable is further improved, meeting the demand of laying the cable in the seabed.

[0025] The submarine cable with strong protection performance, by setting alkane layer, polycarbonate layer, asphalt layer and aluminum waterproof layer, can effectively ensure the insulation, waterproof and corrosion resistance of the cable, further improve the service life of the cable in the seabed, and ensure the stable work of the cable in the seabed.

[0026] The submarine cable with strong protection performance, by setting first steel strand, asphalt layer and arc-shaped groove, the asphalt layer accounts for a low proportion in the total cost of the submarine cable, reducing the production cost of the submarine cable, and the asphalt layer is the first line of defense of the submarine cable in the deep sea environment, playing a preliminary protection role, which can improve the protection level of the cable, prevent water and harmful substances from entering the inside of the cable, thereby prolonging the service life of the cable, and the arc-shaped groove on the outer wall of the first steel strand can better combine the asphalt layer, not only improving the sealing and corrosion resistance of the whole cable, but also ensuring the support strength of the first steel strand. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The utility model discloses the whole structure schematic diagram of submarine cable with strong protection performance that the utility model proposes is shown in the figure;

[0028] Figure 2 The utility model discloses the internal component structure schematic diagram of submarine cable with strong protection performance that the utility model proposes is shown in the figure;

[0029] Figure 3The utility model provides a submarine cable with strong protection performance Figure 2 An enlarged structure schematic view at A in the figure;

[0030] Figure 4 An end surface structure schematic view of the submarine cable with strong protection performance;

[0031] Figure 5 A warning marking line distribution structure schematic view of the submarine cable with strong protection performance.

[0032] In the figure: 1, optical fiber bundle; 2, alkane layer; 3, inner sheath layer; 4, polycarbonate layer; 5, aluminum waterproof layer; 7, support layer; 7001, first steel strand; 7002, arc-shaped groove; 7003, second steel strand; 8, asphalt layer; 9, outer sheath layer; 10, warning marking line. DETAILED DESCRIPTION

[0033] The technical solutions of the patent will be further described in detail in combination with specific implementation manners.

[0034] The embodiments of the patent will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the patent, and cannot be understood as a limitation on the patent.

[0035] In the description of the patent, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the patent and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the patent.

[0036] In the description of the patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, can be fixedly connected, set, or can be detachably connected, set, or integrally connected, set. For those skilled in the art, the specific meanings of the above terms in the patent can be understood according to the specific circumstances. EMBODIMENT

[0037] REFERENCE Figures 1-4The application discloses a submarine cable with strong protection performance, which comprises a fiber bundle 1, an alkane layer 2 arranged on the outer wall of the circumference of the fiber bundle 1, an inner sheath layer 3 arranged on the outer wall of the circumference of the alkane layer 2, a polycarbonate layer 4 arranged on the outer wall of the circumference of the inner sheath layer 3, an aluminum waterproof layer 5 arranged on the outer wall of the circumference of the polycarbonate layer 4, a support layer 7 arranged on the outer wall of the circumference of the aluminum waterproof layer 5, and an asphalt layer 8 coated on the outer wall of the circumference of the support layer 7, and an outer sheath layer 9 arranged on the outer wall of the circumference of the asphalt layer 8. The submarine cable can effectively guarantee the insulation, waterproof and corrosion resistance of the cable, further improves the service life of the cable in the submarine and guarantees the stable work of the cable in the submarine.

[0038] Specifically, the alkane layer 2 is made of paraffin material, so that the submarine cable has good insulation effect.

[0039] Specifically, the inner sheath layer 3 is made of copper pipe material, the inner sheath layer 3 is arranged between the alkane layer 2 and the polycarbonate layer 4, the inner sheath layer 3 made of copper pipe material has good wear resistance, the copper sleeve or part of the internal organization is relatively compact, has high hardness, and the copper pipe sheath also has corrosion resistance.

[0040] Specifically, the support layer 7 comprises a first steel strand 7001 and a second steel strand 7003, the first steel strand 7001 is located outside the second steel strand 7003, and the two groups of steel strands can further improve the support capacity and the strength of the submarine cable.

[0041] Specifically, the inner diameter of the first steel strand 7001 is greater than the inner diameter of the second steel strand 7003, the first steel strand 7001 and the second steel strand 7003 are circularly distributed at equal distances outside the aluminum waterproof layer 5, and the first steel strand 7001 located outside has a greater thickness than the second steel strand 7003, so that the protection level of the cable is further improved, and the demand of laying the cable in the submarine is met.

[0042] Specifically, an arc-shaped groove 7002 is arranged on the outer wall of the circumference of the first steel strand 7001, the asphalt layer 8 is filled in the arc-shaped groove 7002, the arc-shaped groove 7002 arranged on the outer wall of the circumference of the first steel strand 7001 can make the asphalt layer 8 better combined with the first steel strand 7001, so that the sealing and corrosion resistance of the whole cable are improved, and the support strength of the first steel strand 7001 is guaranteed.

[0043] Specifically, the outer sheath layer 9 is made of polyethylene material, the polyethylene material has good electrical properties, environmental stress cracking resistance, chemical stability, good processing performance and light weight. Embodiment

[0044] Reference Figure 5Compared with the embodiment 1, the embodiment further comprises warning lines 10 arranged on the circumferential outer wall of the outer sheath layer 9, the warning lines 10 are equidistantly distributed on the circumferential outer wall of the outer sheath layer 9, the warning lines 10 are orange in color, and can warn passing ships, remind the passing ships to pay attention to the submarine cable, prevent the submarine cable from being damaged due to improper operation, ensure that the submarine cable can normally operate and reduce economic losses.

[0045] Working principle: by arranging the first steel strand 7001 and the second steel strand 7003 in the cable, the support capacity and the strength of the whole submarine cable can be further improved, the cable is prevented from being broken when large fish gnaws the cable in the submarine, the first steel strand 7001 located outside is thicker than the second steel strand 7003, so that the protection level of the cable is further improved, the demand of laying the cable in the submarine is met, the insulation, waterproof and corrosion resistance of the cable can be effectively ensured by arranging the alkane layer 2, the polycarbonate layer 4, the asphalt layer 8 and the aluminum waterproof layer 5 in the cable, the service life of the cable in the submarine is further improved, the cable can stably work in the submarine, the production cost of the submarine cable is reduced due to the low proportion of the asphalt layer 8 in the total cost of the submarine cable, the asphalt layer 8 is the first line of defense of the submarine cable in the deep sea environment, plays a preliminary protection role, can improve the protection level of the cable, prevents water and harmful substances from entering the inside of the cable, prolongs the service life of the cable, and the arc-shaped groove 7002 formed in the outer wall of the first steel strand 7001 can make the asphalt layer 8 better combined with the first steel strand 7001, not only improves the sealing and corrosion resistance of the whole cable, but also ensures the support strength of the first steel strand 7001.

[0046] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A submarine cable with strong protective performance, comprising an optical fiber bundle (1), characterized in that: The circumferential outer wall of the optical fiber bundle (1) is provided with an alkane layer (2), the circumferential outer wall of the alkane layer (2) is provided with an inner sheath layer (3), the circumferential outer wall of the inner sheath layer (3) is provided with a polycarbonate layer (4), the circumferential outer wall of the polycarbonate layer (4) is provided with an aluminum waterproof layer (5), the circumferential outer wall of the aluminum waterproof layer (5) is provided with a support layer (7), the circumferential outer wall of the support layer (7) is coated with an asphalt layer (8), and the outer wall of the asphalt layer (8) is provided with an outer sheath layer (9).

2. The submarine cable with strong protective performance according to claim 1, characterized in that: The alkane layer (2) is made of paraffin material.

3. The submarine cable with strong protective performance according to claim 2, characterized in that: The inner sheath layer (3) is made of a copper tube material, and the inner sheath layer (3) is arranged between the alkane layer (2) and the polycarbonate layer (4).

4. The submarine cable with strong protective performance according to claim 3, characterized in that: The supporting layer (7) comprises a first steel strand (7001) and a second steel strand (7003), wherein the first steel strand (7001) is located outside the second steel strand (7003).

5. The submarine cable with strong protective performance according to claim 4, characterized in that: The inner diameter of the first steel strand (7001) is greater than the inner diameter of the second steel strand (7003), and the first steel strand (7001) and the second steel strand (7003) are evenly spaced and distributed in a circular shape outside the aluminum waterproof layer (5).

6. The submarine cable with strong protection performance according to claim 5, characterized in that: An arc-shaped groove (7002) is provided on the circumferential outer wall of the first steel strand (7001), and the arc-shaped groove (7002) is provided on the circumferential outer wall of the first steel strand (7001), and the asphalt layer (8) is filled inside the arc-shaped groove (7002).

7. The submarine cable with strong protection performance according to claim 6, characterized in that: The outer sheath layer (9) is made of polyethylene material.

8. The submarine cable with strong protection performance according to claim 7, characterized in that: The circumferential outer wall of the outer sheath layer (9) is provided with warning marking lines (10), the warning marking lines (10) are distributed at equal distances on the circumferential outer wall of the outer sheath layer (9), and the color of the warning marking lines (10) is orange.

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