Ultraviolet-resistant high-flame-retardant oil-sludge-resistant special cable for extreme environment of deep and far sea equipment

Abstract

The invention discloses an ultraviolet-resistant high-flame-retardant oil-sludge-resistant special cable for a deep and far sea equipment extreme environment, and the cable sequentially comprises an outer sheath, an armor layer, an inner protection layer and a wrapping layer from the outside to the inside, and the wrapping layer is internally provided with a central cable body, a plurality of first supporting units, a plurality of first filling units, a plurality of second supporting units, and a plurality of second filling units. The special cable provided by the invention can be used in equipment in a marine environment, can be used in an extreme environment, and has the characteristics of good ultraviolet resistance, oil sludge resistance and high flame retardance. And the cable is provided with the radial reinforcing plate, the first supporting unit and the second supporting unit, so that the cable has better pressure-resistant performance. The cable is provided with a plurality of water absorption ropes, so that the cable has a better water blocking effect, and is provided with a plurality of tensile ropes, so that the cable has a better tensile effect. The first supporting plate and the second supporting plate are arranged, so that biting of marine organisms is avoided. And when the outer side of the cable is damaged, the damage can be detected, so that timely maintenance is reminded.

Description

Technical Field

[0001] The present invention relates to the field of cable technology, and more specifically to a special cable that is resistant to ultraviolet rays, highly flame-retardant and resistant to oil mud for use in extreme environments of deep-sea equipment. Background Art

[0002] As an important device for transmitting electric energy and signals, cables play a vital role in modern society. Cables are widely used in various fields such as electricity, communications, transportation, construction, petrochemicals, etc., and are one of the indispensable infrastructures in modern society.

[0003] Existing cables may face multiple challenges such as high temperature, low temperature, strong corrosion, strong radiation, and water penetration in extreme environments in the deep sea. These extreme conditions may cause the insulation materials of the cables to age faster, the signal transmission performance to deteriorate, and even serious problems such as breakage or short circuits may occur. These problems will significantly shorten the life of the cable and make the performance unstable, thus affecting the normal operation of deep-sea equipment. The water pressure in the deep-sea environment is extremely high, which places extremely high demands on the pressure resistance of the cable. If the pressure resistance of the cable is insufficient, the cable may be severely damaged such as deformation, rupture, or internal short circuit due to the inability to withstand the huge water pressure, thus affecting the normal operation of deep-sea equipment. In the marine environment, marine organisms such as fish and shellfish may bite the cable, causing damage to the outer side of the cable or damage to the insulation layer. These damages will not only affect the transmission performance of the cable, but may also cause safety hazards such as short circuits and leakage. After the cable is damaged, it is often difficult to be discovered in time, resulting in the continuous expansion of the fault and affecting the use of the cable. Summary of the invention

[0004] The present invention aims to overcome the defects of the prior art and provide a special cable which is UV-resistant, highly flame-retardant and oil-sludge-resistant for use in extreme environments of deep-sea equipment.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cable, comprising, from the outside to the inside, an outer sheath, an armor layer, an inner sheath and a wrapping layer, wherein the wrapping layer has a central cable body, a plurality of first support units, a plurality of first filling units, a plurality of second support units and a plurality of second filling units; the number of the first support units, the first filling units, the second support units and the second filling units is equal; the central cable body comprises a cable body sheath and a plurality of cable cores located in the cable body sheath, wherein the cable core comprises, from the outside to the inside, an insulating layer, a fire-resistant layer and a conductor.

[0006] Furthermore, the cable body sheath includes a sheath body, a plurality of first protrusions and a plurality of second protrusions, the plurality of first protrusions and the plurality of second protrusions are all connected to the sheath body, the plurality of first protrusions and the plurality of second protrusions are alternately distributed, the cable body sheath has a plurality of radial reinforcement units, the number of the radial reinforcement units is equal to the number of the first protrusions and the two correspond one to one, the radial reinforcement unit includes a skeleton cladding with a T-shaped cross-section, the skeleton cladding has a radial reinforcement plate and two first tensile ropes; each second protrusion is fixedly connected to two radial buffer plates, the second protrusion has a first installation groove located between the two radial buffer plates, and a first detection cable is installed in the first installation groove of at least one second protrusion.

[0007] Further, multiple first supporting units and multiple first filling units surround the central cable body and are distributed alternately; each first supporting unit faces one first protrusion, and each second supporting unit faces one second protrusion, the first supporting unit includes two first abutment plates, two wrapping plates and two first support plates, the first abutment plate abuts the protective layer body, the first protrusion is located between the two wrapping plates and abutted by the two wrapping plates, the two first support plates are connected to each other, and each wrapping plate connects a first support plate and a first abutment plate; the first filling unit includes two first plate bodies, two second plate bodies, two third plate bodies, two fourth plate bodies and a fifth plate body connecting two fourth plate bodies, the second plate body connects the first plate body and the third plate body, the third plate body connects the second plate body and the fourth plate body, the first plate body abuts the first abutment plate and the wrapping plate, the second plate body abuts the first support plate, and the second protrusion is located between the two first plate bodies.

[0008] Furthermore, the angle between the two first support plates of the first support unit is less than 30 degrees.

[0009] Thus, a shape similar to a sharp blade can be formed in the first supporting unit.

[0010] Furthermore, there are two first detection cables.

[0011] Furthermore, each second supporting unit faces a first filling unit, the second supporting unit includes a plug plate and a second supporting plate with a triangular cross-section connected to the plug plate, the plug plate is located between the two fourth plate bodies of the corresponding first filling unit; the second filling unit includes two second abutment plates, two first connecting plates, two second connecting plates and a third connecting plate connecting the two second connecting plates, the first connecting plate connects the second abutment plate and the second connecting plate, the second connecting plate connects the first connecting plate and the third connecting plate, the second abutment plate abuts the first filling unit, the first connecting plate abuts the second supporting plate, and a second mounting groove is formed between the third connecting plate and the two second connecting plates; the first filling unit is filled with a plurality of first water absorbent ropes, and the second filling unit is filled with a plurality of second water absorbent ropes.

[0012] Thereby, a plurality of water-absorbing ropes can improve the moisture-proof effect of the cable.

[0013] Further, the first detection cable and the second detection cable each include an insulating sheath and a conductor unit located in the insulating sheath.

[0014] Furthermore, the radial reinforcing plate and the radial buffer plate both extend along the length direction of the central cable body.

[0015] Furthermore, the first installation groove and the second installation groove both extend along the length direction of the central cable body.

[0016] Furthermore, the first supporting unit and the first filling unit both extend along the length direction of the central cable body.

[0017] Furthermore, the second supporting unit and the second filling unit both extend along the length direction of the central cable body.

[0018] Furthermore, at least one of the plurality of second installation grooves is installed with a second tensile rope, and at least one is installed with a second detection cable.

[0019] Thereby improving the overall tensile strength of the cable.

[0020] Furthermore, there are six second tensile ropes and two second detection cables.

[0021] Furthermore, the skeleton cladding is made of nylon material; the first filling unit and the second filling unit are both made of polyvinyl chloride material; the radial reinforcing plate, the first supporting unit and the second supporting unit are all made of stainless steel material.

[0022] Furthermore, the insulating layer is a polyethylene insulating layer, the fire-resistant layer is made of a low-smoke halogen-free flame-retardant material, the wrapping layer is a water-blocking wrapping layer, the armor layer is a steel wire armor layer, and the outer sheath is made of a polyvinyl chloride material.

[0023] Furthermore, the first water-absorbing rope and the second water-absorbing rope are both made of polyester fiber material; the inner sheath is made of aluminum-plastic composite material; and the cable body sheath is made of chloroprene rubber.

[0024] Therefore, the cable has excellent water-blocking, UV-resistant, sludge-resistant and highly flame-retardant properties.

[0025] Beneficial effects: 1. The special cable of the present application can be used in equipment in marine environments and can be used in extreme environments. It has excellent UV resistance, oil sludge resistance, and high flame retardancy.

[0026] 2. The special cable of the present application has a radial reinforcement plate, a first support unit and a second support unit, so that the cable has better pressure resistance.

[0027] 3. The special cable of the present application has multiple water-absorbing ropes, thereby having a better water-blocking effect and extending the service life of the cable.

[0028] 4. The special cable of the present application has multiple tensile ropes, so that the cable has better tensile resistance and is more suitable for cable dragging.

[0029] 5. The special cable of the present application has a first support plate and a second support plate, thereby preventing the bite of marine organisms.

[0030] 6. The special cable of the present application can be detected when the outer side of the cable is damaged, thereby reminding timely maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the cable cross section; Figure 2 This is an enlarged view of area A; Figure 3 It is a three-dimensional schematic diagram of the cable; Figure 4 This is an enlarged view of area B; Figure 5 This is an enlarged view of area C; Figure 6 A schematic diagram showing the separation of the central cable body and a part of the first supporting unit, the first filling unit, the second supporting unit and the second filling unit from a first viewing angle; Figure 7 This is an enlarged view of area D; Figure 8 This is an enlarged view of area E; Fig. 9 A schematic diagram showing the separation of the central cable body and a part of the first supporting unit, the first filling unit, the second supporting unit and the second filling unit from a second viewing angle; Fig.10This is an enlarged view of area F.

[0032] Explanation of the reference numerals: outer sheath 1.1; armor layer 1.2; inner sheath 1.3; wrapping layer 1.4; sheath body 2.1; first protrusion 2.2; second protrusion 2.3; first mounting groove 2.3.1; skeleton sheath 2.4; radial reinforcement plate 2.5; first tensile rope 2.6; radial buffer plate 2.7; conductor 3.1; fire-resistant layer 3.2; insulating layer 3.3; first detection cable 4; first abutment plate 5.1; wrapping plate 5.2; first support plate 5.3; first plate body 6.1; second plate body 6.2; third plate body 6.3; fourth plate body 6.4; fifth plate body 6.5; first water-absorbing rope 6.6; plug plate 7.1; second support plate 7.2; second abutment plate 8.1; first connecting plate 8.2; second connecting plate 8.3; third connecting plate 8.4; second water-absorbing rope 8.5; second tensile rope 8.6; second detection cable 9. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The present invention provides a special cable with high UV resistance, flame retardancy and oil mud resistance for extreme environment of deep-sea equipment as shown in the figure, which comprises, from outside to inside, an outer sheath 1.1, an armor layer 1.2, an inner sheath 1.3 and a winding layer 1.4, wherein the winding layer 1.4 has a central cable body, a plurality of first support units, a plurality of first filling units, a plurality of second support units and a plurality of second filling units; the number of the first support units, the first filling units, the second support units and the second filling units is equal; the central cable body comprises a cable body sheath and a plurality of cable cores located in the cable body sheath, wherein the cable core comprises, from outside to inside, an insulating layer 3.3, a fire-resistant layer 3.2 and a conductor 3.1. The cable body sheath includes a sheath body 2.1, a plurality of first protrusions 2.2 and a plurality of second protrusions 2.3, the plurality of first protrusions 2.2 and the plurality of second protrusions 2.3 are all connected to the sheath body 2.1, the plurality of first protrusions 2.2 and the plurality of second protrusions 2.3 are alternately distributed, the cable body sheath has a plurality of radial reinforcement units, the number of the radial reinforcement units is equal to the number of the first protrusions 2.2 and the two correspond one to one, the radial reinforcement units include a skeleton cladding 2.4 with a T-shaped cross-section, the skeleton cladding 2.4 has a radial reinforcement plate 2.5 and two first tensile ropes 2.6; each second protrusion 2.3 is fixedly connected to two radial buffer plates 2.7, the second protrusion 2.3 has a first installation groove 2.3.1 located between the two radial buffer plates 2.7, and a first detection cable 4 is installed in the first installation groove 2.3.1 of at least one second protrusion 2.3.

[0035] A plurality of first support units and a plurality of first filling units surround the central cable body and are alternately distributed; each first support unit faces one of the first protrusions 2.2, and each second support unit faces one of the second protrusions 2.3; the first support unit comprises two first abutment plates 5.1, two wrapping plates 5.2, and two first support plates 5.3; the first abutment plates 5.1 abut against the sheath body 2.1; the first protrusion 2.2 is located between the two wrapping plates 5.2 and abutted by the two wrapping plates 5.2; the two first support plates 5.3 are connected to each other; and each wrapping plate 5.2 is connected to one first support plate 5.3 and a first abutment plate 5.1; the first filling unit includes two first plate bodies 6.1, two second plate bodies 6.2, two third plate bodies 6.3, two fourth plate bodies 6.4 and a fifth plate body 6.5 connecting the two fourth plate bodies 6.4, the second plate body 6.2 connects the first plate body 6.1 and the third plate body 6.3, the third plate body 6.3 connects the second plate body 6.2 and the fourth plate body 6.4, the first plate body 6.1 abuts the first abutment plate 5.1 and the wrapping plate 5.2, the second plate body 6.2 abuts the first supporting plate 5.3, and the second protrusion 2.3 is located between the two first plate bodies 6.1. Each second supporting unit faces a first filling unit, the second supporting unit comprises a plug plate 7.1 and a second supporting plate 7.2 with a triangular cross section connected to the plug plate 7.1, the plug plate 7.1 being located between two fourth plate bodies 6.4 of the corresponding first filling unit; the second filling unit comprises two second abutting plates 8.1, two first connecting plates 8.2, two second connecting plates 8.3 and a third connecting plate 8.4 connecting the two second connecting plates 8.3, the first connecting plate 8.2 connects the second abutting plates 8.1 and the second connecting plates 8.3, the second connecting plate 8.3 connects the first connecting plate 8.2 and the third connecting plate 8.4, the second abutting plate 8.1 abuts the first filling unit, the first connecting plate 8.2 abuts the second supporting plate 7.2, and a second mounting groove is formed between the third connecting plate 8.4 and the two second connecting plates 8.3; the first filling unit is filled with a plurality of first water absorbing ropes 6.6, and the second filling unit is filled with a plurality of second water absorbing ropes 8.5.

[0036] At least one of the plurality of second installation grooves is installed with a second tensile rope 8.6, and at least one is installed with a second detection cable 9. The skeleton sheath 2.4 is made of nylon material; the first filling unit and the second filling unit are both made of polyvinyl chloride material; the radial reinforcement plate 2.5, the first support unit and the second support unit are all made of stainless steel material. The insulating layer 3.3 is a polyethylene insulating layer, the fire-resistant layer 3.2 is made of low-smoke halogen-free flame-retardant material, the wrapping layer 1.4 is a water-blocking wrapping layer, the armor layer 1.2 is a steel wire armor layer, and the outer sheath 1.1 is made of polyvinyl chloride material. The first water-absorbing rope 6.6 and the second water-absorbing rope 8.5 are both made of polyester fiber material; the inner sheath 1.3 is made of aluminum-plastic composite material; the cable body sheath is made of chloroprene rubber.

[0037] Working principle: The cable of the present application can be used in equipment in marine environments and can be used in extreme environments. It has good resistance to oil mud and high flame retardancy. In addition, the central cable body of the present application has multiple first protrusions and multiple second protrusions, and the first protrusion has a radial reinforcement plate, and the first support unit forms a shape similar to a sharp blade, and the second support unit has a shape similar to a sharp blade, so that the cable as a whole has a better pressure resistance effect, and the first and second support units form a shape similar to a sharp blade, which can effectively prevent marine organisms from biting the cable. In addition, due to the multiple first tensile ropes and multiple second tensile ropes, the cable has a better tensile resistance effect, so it is more suitable for cable dragging. In addition, the cable has multiple first filling units and multiple second filling units, and the multiple first filling units can be matched and installed with the multiple first support units, and the multiple second filling units can be matched and installed with the multiple second support units, and the first filling unit and the second filling unit both have space, so that the space is filled with water-absorbing ropes, so it has a better moisture-proof effect. In addition, the first detection cable and the second detection cable are installed in the cable. When the outer side of the cable is damaged or pressed by a strong external force, the second detection cable is damaged (the second detection cable can be used to transmit the detection signal. When the detection signal fails, it means that the second detection cable is damaged). Similarly, the first detection cable can be used to determine whether the deeper position of the cable in the radial direction is damaged (the first detection cable can be used to transmit the detection signal. When the detection signal transmitted by the first detection cable fails, it means that the first detection cable is damaged). Therefore, the damage of the cable can be determined by the first and second detection cables. When the first and second detection cables are not damaged, it means that the cable is running well. When the second detection cable is damaged and the first detection cable is not damaged, it means that the cable has been slightly damaged; when the first and second detection cables are damaged, it means that the cable has been deeply damaged. In addition, radial buffer plates are provided on both sides of the first installation groove of the first detection cable, so that the small radial pressure of the cable caused by normal seawater pressure is buffered by the radial buffer plates and will not cause damage to the first detection cable. However, when bitten by marine organisms or dragged forcefully, the first detection cable will be damaged, thereby timely detecting that the cable has been damaged to a greater extent, thereby reminding the maintenance of the cable.

[0038] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. Ultraviolet-resistant, highly flame-retardant and oil-sludge-resistant special cables for extreme environments of deep-sea equipment, characterized by: From the outside to the inside, it includes an outer sheath, an armor layer, an inner sheath and a wrapping layer, wherein the wrapping layer has a central cable body, a plurality of first support units, a plurality of first filling units, a plurality of second support units and a plurality of second filling units; the number of the first support units, the first filling units, the second support units and the second filling units is equal; the central cable body includes a cable body sheath and a plurality of cable cores located in the cable body sheath, wherein the cable core includes an insulating layer, a fire-resistant layer and a conductor from the outside to the inside.

2. The ultraviolet-resistant, highly flame-retardant and oil-sludge-resistant special cable for extreme environments of deep-sea equipment according to claim 1 is characterized in that: The cable body sheath includes a sheath body, a plurality of first protrusions and a plurality of second protrusions, the plurality of first protrusions and the plurality of second protrusions are all connected to the sheath body, the plurality of first protrusions and the plurality of second protrusions are alternately distributed, the cable body sheath has a plurality of radial reinforcement units, the number of the radial reinforcement units is equal to the number of the first protrusions and the two correspond one to one, the radial reinforcement unit includes a skeleton cladding with a T-shaped cross-section, the skeleton cladding has a radial reinforcement plate and two first tensile ropes; each second protrusion is fixedly connected to two radial buffer plates, the second protrusion has a first installation groove located between the two radial buffer plates, and a first detection cable is installed in the first installation groove of at least one second protrusion.

3. The ultraviolet-resistant, highly flame-retardant and oil-sludge-resistant special cable for extreme environments of deep-sea equipment according to claim 2 is characterized in that: A plurality of first supporting units and a plurality of first filling units surround the central cable body and are distributed alternately; each first supporting unit faces one first protrusion, and each second supporting unit faces one second protrusion, the first supporting unit includes two first abutment plates, two wrapping plates and two first supporting plates, the first abutment plate abuts the protective layer body, the first protrusion is located between the two wrapping plates and abutted by the two wrapping plates, the two first supporting plates are connected to each other, and each wrapping plate connects a first support plate and a first abutment plate; the first filling unit includes two first plate bodies, two second plate bodies, two third plate bodies, two fourth plate bodies and a fifth plate body connecting two fourth plate bodies, the second plate body connects the first plate body and the third plate body, the third plate body connects the second plate body and the fourth plate body, the first plate body abuts the first abutment plate and the wrapping plate, the second plate body abuts the first support plate, and the second protrusion is located between the two first plate bodies.

4. The ultraviolet-resistant, highly flame-retardant and oil-sludge-resistant special cable for extreme environments of deep-sea equipment according to claim 3 is characterized in that: Each second supporting unit faces a first filling unit, the second supporting unit includes a plug plate and a second supporting plate with a triangular cross-section connected to the plug plate, the plug plate is located between the two fourth plate bodies of the corresponding first filling unit; the second filling unit includes two second abutment plates, two first connecting plates, two second connecting plates and a third connecting plate connecting the two second connecting plates, the first connecting plate connects the second abutment plate and the second connecting plate, the second connecting plate connects the first connecting plate and the third connecting plate, the second abutment plate abuts the first filling unit, the first connecting plate abuts the second supporting plate, and a second mounting groove is formed between the third connecting plate and the two second connecting plates; the first filling unit is filled with a plurality of first water-absorbing ropes, and the second filling unit is filled with a plurality of second water-absorbing ropes.

5. The ultraviolet-resistant, highly flame-retardant and oil-sludge-resistant special cable for extreme environments of deep-sea equipment according to claim 4 is characterized in that: At least one of the plurality of second installation grooves is installed with a second tensile rope, and at least one is installed with a second detection cable.

6. The ultraviolet-resistant, highly flame-retardant, and oil-sludge-resistant special cable for extreme environments of deep-sea equipment according to claim 4 is characterized in that: The skeleton cladding is made of nylon material; the first filling unit and the second filling unit are both made of polyvinyl chloride material; the radial reinforcing plate, the first supporting unit and the second supporting unit are all made of stainless steel material.

7. The ultraviolet-resistant, highly flame-retardant, and oil-sludge-resistant special cable for extreme environments of deep-sea equipment according to claim 4 is characterized in that: The insulating layer is a polyethylene insulating layer, the fire-resistant layer is made of a low-smoke halogen-free flame-retardant material, the wrapping layer is a water-blocking wrapping layer, the armor layer is a steel wire armor layer, and the outer sheath is made of a polyvinyl chloride material.

8. The ultraviolet-resistant, highly flame-retardant, and oil-sludge-resistant special cable for extreme environments of deep-sea equipment according to claim 4 is characterized in that: The first water-absorbing rope and the second water-absorbing rope are both made of polyester fiber material; the inner sheath is made of aluminum-plastic composite material; and the cable body sheath is made of chloroprene rubber.

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