CN202940035U - High-temperature-resistant soft double-shielding instrument cable for offshore oil gas engineering - Google Patents
High-temperature-resistant soft double-shielding instrument cable for offshore oil gas engineering Download PDFInfo
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- CN202940035U CN202940035U CN 201220606701 CN201220606701U CN202940035U CN 202940035 U CN202940035 U CN 202940035U CN 201220606701 CN201220606701 CN 201220606701 CN 201220606701 U CN201220606701 U CN 201220606701U CN 202940035 U CN202940035 U CN 202940035U
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Abstract
The utility model relates to a high-temperature-resistant soft double-shielding instrument cable for offshore oil gas engineering. Chemical crosslinked polyolefin insulating layers are extruded in the peripheries of tinned annealed intertwisted copper conductors to constitute insulating wire cores, the insulating wire cores are intertwisted two by two and are wrapped by wire core copper foil polyester composite belt shielding layers and wire core polyester belts and are then intertwisted to a cable core, a cable core copper foil polyester composite belt shielding layer wraps the periphery of the cable core and a copper foil surface is toward the inside, the inner side of the cable core copper foil polyester composite belt shielding layer is provided with a cable core tinned intertwisted copper wire drainage wire, and the cable core tinned intertwisted copper wire drainage wire penetrates through the overall length of the cable core and abuts against the copper foil surface; and a cable core polyester belt wraps the periphery of the cable core copper foil polyester composite belt shielding layer, an inner sheath is extruded in the periphery of the cable core polyester belt, a copper alloy wire weaved armor layer wraps the periphery of the inner sheath, a waterproof belting wraps the periphery of the copper alloy wire weaved armor layer, and an outer sheath is extruded in the periphery of the waterproof belting. The insulating layers of the cable have excellent high-temperature-resistant and aging-resistant performance, and the cable has a long service life.
Description
Technical field
The utility model relates to a kind of instrument cable, particularly a kind of offshore oil and gas engineering heat-resisting soft double shield instrument cable.
Background technology
Exploitation along with the offshore oil and gas energy; the oil gas engineering is more and more with cable; performance requirement is more and more higher; especially insulation and the metal armouring as cable weight main composition part need to be reduced to greatest extent, needs simultaneously to satisfy mechanical protection, cable to cable and possesses that the many moisture of the oil gas of adaptation engineering-environment corrode infiltration and cable can the requirement in useful life of safe operation about 25 years.Almost all adopt without the inner sleeve cable or adopt the zinc-coated wire braiding to be insulation and sheath as armouring, cross-linking radiation polyolefin in order to alleviate cable weight in prior art, but nonetheless with regard to the supporting angle of integrated engineering, the weight that cable alleviates also is no more than 10%.Prior art adopts the cross-linking radiation polyolefin as insulation, and its thermal endurance class is up to 150 ℃, far can not satisfy the crosslinked demand of sheath, and the anti-water permeation performance of irradiation crosslinked polyolefin insulating and sheath is very poor, can't satisfy the Long Term Contact with moisture.
Publication number is that the Chinese patent of CN 201758046 U discloses a kind of crosslinked control cables, it adopts crosslinked polyetylene insulated, conductor sets gradually internal shield, insulating barrier and outer shielding layer outward, at external lapping layer and the oversheath of setting gradually of three phase isolated core, space between three phase isolated core and lapping layer is provided with filler, also be provided with the copper strip shielding layer on insulated wire cores, this copper strip shielding layer is wrapped on the outer shielding layer surface.This patent has adopted crosslinked polyetylene insulated, the requirement that although simple in structure, with low cost, it can not satisfy, and the offshore oil and gas engineering cable is high temperature resistant, large ampacity, many moisture corrode.
Publication number is that the Chinese utility model patent of CN101565527A discloses a kind of 125 DEG C irradiated crosslinking, although it has satisfied the high temperature heat-resistant ageing properties requirement of 125 ℃, but it only can be used for cable cover(ing), insulation property are relatively poor, are not suitable as insulating material.
Publication number is that the Chinese utility model patent of CN102617923A discloses a kind of irradiated crosslinking low-smoke and halogen-free high flame retardant polyolefin insulation material, its heat-proof aging is only 135 ℃, according to correlation standard, this material only can bear 90 ℃ of long-term maximum operating temperatures, can't satisfy offshore oil and gas engineering cable high-temperature operation environmental requirement.
The utility model content
The purpose of this utility model is, overcomes problems of the prior art, and a kind of offshore oil and gas engineering heat-resisting soft double shield instrument cable is provided, and its insulating barrier is high temperature resistant, ageing-resistant performance is excellent, long service life.
For realizing above purpose, a kind of offshore oil and gas engineering provided by the utility model heat-resisting soft double shield instrument cable, 0.35 being extruded with the chemical crosslinking polyolefin insulation layer, the zinc-plated annealing twisted copper conductors periphery of ~ 2.5mm2 consists of insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair in twos, and the right twisting pitch of each described twisted pair wire is not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Every group of right periphery of described twisted pair wire be surrounded with core Copper Foil polyester composite band screen and copper-clad surface inside, the inboard of described core Copper Foil polyester composite band screen is provided with the zinc-plated stranded copper wire drainage thread of core, and the zinc-plated stranded copper wire drainage thread of described core runs through twisted pair wire to overall length and together with copper-clad surface abuts against; Each described core Copper Foil polyester composite band screen periphery is surrounded with the core polyester belt and consists of the pair twist group; All pair twist groups are with the stranded formation cable core of stranded lay ratio dextrad of 16 ~ 24 times, the periphery of described cable core be surrounded with cable core Copper Foil polyester composite band screen and copper-clad surface inside, the inboard of described cable core Copper Foil polyester composite band screen is provided with the zinc-plated stranded copper wire drainage thread of cable core, and the zinc-plated stranded copper wire drainage thread of described cable core runs through the cable core overall length and together with copper-clad surface abuts against; The periphery of described cable core Copper Foil polyester composite band screen is surrounded with the cable core polyester belt, the periphery of described cable core polyester belt is extruded with inner sheath, the periphery of described inner sheath is coated with copper alloy silk braiding armour, the periphery of described copper alloy silk braiding armour is surrounded with the waterproof band, and the periphery of described waterproof band is extruded with oversheath.
With respect to prior art, the utility model has been obtained following beneficial effect: this cable is extruded with the chemical crosslinking polyolefin insulation layer outside zinc-plated annealing twisted copper conductors, and is high temperature resistant, ageing-resistant performance is excellent, long service life; Copper alloy silk braiding armour both can be every magnetic, and the loss of avoiding the eddy current magnetic hysteresis to cause increases ampacity, mechanical strength is larger than copper again, cost is cheap than copper, and has excellent anti-seawater corrosion performance, benefits for the long-term security operation of cable.
As preferred version of the present utility model, the copper thickness of described core or cable core Copper Foil polyester composite band screen is 0.018 ~ 0.025mm, the thickness of the polyester of described core or cable core Copper Foil polyester composite band screen is 0.023 ~ 0.030mm, and gross thickness is not more than 0.05mm, and the wrapped rate of putting up is 30 ~ 40%.
As preferred version of the present utility model, stranded the forming of copper wire that the zinc-plated stranded copper wire drainage thread of described core or cable core is 0.43mm by 7 diameters.
As preferred version of the present utility model, the thickness of described core or cable core polyester belt is 0.05 ~ 0.07mm, and the wrapped rate of putting up is 20 ~ 25%.
Description of drawings
Fig. 1 is the structural representation that the utility model offshore oil and gas engineering is used heat-resisting soft double shield instrument cable.
In figure: 1. zinc-plated annealing twisted copper conductors; 2. chemical crosslinking polyolefin insulation layer; 3. core Copper Foil polyester composite band screen; 3a. the zinc-plated stranded copper wire drainage thread of core; 4. core polyester belt; 5. cable core Copper Foil polyester composite band screen; 5a. the zinc-plated stranded copper wire drainage thread of cable core; 6. cable core polyester belt; 7. inner sheath; 8. the copper alloy silk weaves armour; 9. waterproof band; 10. oversheath.
Embodiment
Embodiment one
As shown in Figure 1, offshore oil and gas engineering of the present utility model heat-resisting soft double shield instrument cable, make according to the following steps: zinc-plated annealing twisted copper conductors 1 periphery at 0.35mm2 extrudes chemical crosslinking polyolefin insulation layer 2 formation insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair in twos, and the right twisting pitch of each twisted pair wire is not more than 120mm and all twisted pair wires to all adopting different twisting pitch; The right wrapped core Copper Foil of periphery polyester composite band screen 3 and the copper-clad surface of every group of twisted pair wire is inside, the inboard of core Copper Foil polyester composite band screen 3 is provided with the zinc-plated stranded copper wire drainage thread 3a of core, and the zinc-plated stranded copper wire drainage thread 3a of core runs through twisted pair wire to overall length and together with copper-clad surface abuts against; Each core Copper Foil polyester composite band screen 3 wrapped core polyester belts 4 of periphery consist of the pair twist group; All pair twist groups are with the stranded formation cable core of stranded lay ratio dextrad of 16 times, inside at the wrapped cable core Copper Foil of the periphery of cable core polyester composite band screen 5 and copper-clad surface, the inboard of cable core Copper Foil polyester composite band screen 5 is provided with the zinc-plated stranded copper wire drainage thread 5a of cable core, and the zinc-plated stranded copper wire drainage thread 5a of cable core runs through the cable core overall length and together with copper-clad surface abuts against; The wrapped cable core polyester belt 6 of periphery at cable core Copper Foil polyester composite band screen 5, periphery at cable core polyester belt 6 extrudes inner sheath 7, periphery coated copper B alloy wire braiding armour 8 at inner sheath 7, at the wrapped waterproof band 9 of periphery of copper alloy silk braiding armour 8, extrude oversheath 10 in the periphery of waterproof band 9.
Wherein, the copper thickness of core or cable core Copper Foil polyester composite band screen is 0.018mm, and the thickness of the polyester of core or cable core Copper Foil polyester composite band screen is 0.023mm, and the wrapped rate of putting up is 30%.Stranded the forming of copper wire that the zinc-plated stranded copper wire drainage thread of core or cable core is 0.43mm by 7 diameters.The thickness of core or cable core polyester belt is 0.05mm, and the wrapped rate of putting up is 20%.
Wherein, the minimum thickness of chemical crosslinking polyolefin insulation layer 2 is not less than 90% of nominal value, and maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.The preparation process of chemical crosslinking polyolefin insulation layer 2 electro-insulating rubbers used is as follows: (1) prepares raw material, ethylene/vinyl acetate copolymer: 12 parts by following component and weight content; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.5 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.4 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.2 part; Lubricant stearic acid: 0.2 part; Fire retardant aluminium hydroxide: 25 parts; Fire retardant red phosphorus: 0.6 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.05 part; (2) first the banbury temperature is risen to 130 ℃, add successively above-mentioned ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer, and plastify mixing even, then add antioxidant β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, fire retardant aluminium hydroxide and fire retardant red phosphorus, and mixing evenly rear blanking; The mixing roll temperature is risen to 60 ℃, above-mentioned compound is dropped in this mixing roll, add lubricant stearic acid and crosslinking agent cumyl peroxide mixing evenly, then glue stuff compounding is moved to and beat triangle Bao Bingjing thin-pass on three-roller open mill 4 times, the roller temperature control is at 55 ℃, front roll temperature is higher 3 ℃ than rear roll temperature, cutting after thin-pass is completed, cooling standby; Chemical crosslinking polyolefin insulation layer 2 adopts cold feeding manner to extrude on the twin-screw rubber extruding machine, the draw ratio of screw rod is 15:1, fuselage one district's temperature of twin-screw rubber extruding machine is 105 ℃, fuselage two district's temperature are 115 ℃, head temperature is 125 ℃, mold temperature is 135 ℃, and rubber extruding machine cooled screw mode is water cooling.When chemical crosslinking polyolefin insulation layer 2 was extruded, the line length of holding of core rod was 1:1 with the external diameter ratio of extruding, and the gap between core rod and die sleeve is 1mm; Electro-insulating rubber is from entering the cross-linking tube road after the head of twin-screw rubber extruding machine is extruded, and the temperature of crosslinked pipeline is 160 ℃.
The 2nd stranded copper wire of the zinc-plated annealing of class that zinc-plated annealing twisted copper conductors 1 adopts in IEC 60228 standards, zinc-plated employing plating mode substitutes traditional hot tinning mode, has avoided conductor zinc-plated inhomogeneous and tin thickness is inhomogeneous; List edge easily occurs and adhere to the drawback of conductive surface, after avoiding the conductor oxidative phenomena to occur; Chemical reaction occurs with insulation in copper, reduces the risk of insulating barrier electric property and physical and mechanical properties.
Raw material components and the weight content of copper alloy silk braiding armour 8 are as follows, copper: iron: lead: zinc=89.0:0.03:0.01:10.The diameter of armouring braided wires is 0.31 mm, and tensile strength is 260MPa, and elongation at break is not less than 25%.
Embodiment two
Offshore oil and gas engineering of the present utility model heat-resisting soft double shield instrument cable, make according to the following steps: zinc-plated annealing twisted copper conductors 1 periphery at 1.25mm2 extrudes chemical crosslinking polyolefin insulation layer 2 formation insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair in twos, and the right twisting pitch of each twisted pair wire is not more than 120mm and all twisted pair wires to all adopting different twisting pitch; The right wrapped core Copper Foil of periphery polyester composite band screen 3 and the copper-clad surface of every group of twisted pair wire is inside, the inboard of core Copper Foil polyester composite band screen 3 is provided with the zinc-plated stranded copper wire drainage thread 3a of core, and the zinc-plated stranded copper wire drainage thread 3a of core runs through twisted pair wire to overall length and together with copper-clad surface abuts against; Each core Copper Foil polyester composite band screen 3 wrapped core polyester belts 4 of periphery consist of the pair twist group; All pair twist groups are with the stranded formation cable core of stranded lay ratio dextrad of 20 times, inside at the wrapped cable core Copper Foil of the periphery of cable core polyester composite band screen 5 and copper-clad surface, the inboard of cable core Copper Foil polyester composite band screen 5 is provided with the zinc-plated stranded copper wire drainage thread 5a of cable core, and the zinc-plated stranded copper wire drainage thread 5a of cable core runs through the cable core overall length and together with copper-clad surface abuts against; The wrapped cable core polyester belt 6 of periphery at cable core Copper Foil polyester composite band screen 5, periphery at cable core polyester belt 6 extrudes inner sheath 7, periphery coated copper B alloy wire braiding armour 8 at inner sheath 7, at the wrapped waterproof band 9 of periphery of copper alloy silk braiding armour 8, extrude oversheath 10 in the periphery of waterproof band 9.
Wherein, the copper thickness of core or cable core Copper Foil polyester composite band screen is 0.020mm, and the thickness of the polyester of core or cable core Copper Foil polyester composite band screen is 0.030mm, and the wrapped rate of putting up is 35%.Stranded the forming of copper wire that the zinc-plated stranded copper wire drainage thread of core or cable core is 0.43mm by 7 diameters.The thickness of core or cable core polyester belt is 0.06mm, and the wrapped rate of putting up is 22%.
Wherein, the minimum thickness of chemical crosslinking polyolefin insulation layer 2 is not less than 90% of nominal value, and maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.The preparation process of chemical crosslinking polyolefin insulation layer 2 electro-insulating rubbers used is as follows: (1) prepares raw material, ethylene/vinyl acetate copolymer: 12 parts by following component and weight content; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 0.8 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.7 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.3 part; Lubricant stearic acid: 0.6 part; Fire retardant aluminium hydroxide: 28 parts; Fire retardant red phosphorus: 0.8 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.08 part; (2) first the banbury temperature is risen to 140 ℃, add successively above-mentioned ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer, and plastify mixing even, then add antioxidant β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, fire retardant aluminium hydroxide and fire retardant red phosphorus, and mixing evenly rear blanking; The mixing roll temperature is risen to 65 ℃, above-mentioned compound is dropped in this mixing roll, add lubricant stearic acid and crosslinking agent cumyl peroxide mixing evenly, then glue stuff compounding is moved to and beat triangle Bao Bingjing thin-pass on three-roller open mill 5 times, the roller temperature control is at 60 ℃, front roll temperature is higher 4 ℃ than rear roll temperature, cutting after thin-pass is completed, cooling standby; Chemical crosslinking polyolefin insulation layer 2 adopts cold feeding manner to extrude on the twin-screw rubber extruding machine, the draw ratio of screw rod is 20:1, fuselage one district's temperature of twin-screw rubber extruding machine is 110 ℃, fuselage two district's temperature are 120 ℃, head temperature is 130 ℃, mold temperature is 140 ℃, and rubber extruding machine cooled screw mode is water cooling.When chemical crosslinking polyolefin insulation layer 2 was extruded, the line length of holding of core rod was 1:1.1 with the external diameter ratio of extruding, and the gap between core rod and die sleeve is 1.2mm; Electro-insulating rubber is from entering the cross-linking tube road after the head of twin-screw rubber extruding machine is extruded, and the temperature of crosslinked pipeline is 170 ℃.
The 2nd stranded copper wire of the zinc-plated annealing of class that zinc-plated annealing twisted copper conductors 1 adopts in IEC 60228 standards, zinc-plated employing plating mode substitutes traditional hot tinning mode.
Raw material components and the weight content of copper alloy silk braiding armour 8 are as follows, copper: iron: lead: zinc=90:0.04:0.03:10.The diameter of armouring braided wires is 0.32mm, and tensile strength is 300MPa, and elongation at break is not less than 25%.
Embodiment three
Offshore oil and gas engineering of the present utility model heat-resisting soft double shield instrument cable, make according to the following steps: zinc-plated annealing twisted copper conductors 1 periphery at 2.5mm2 extrudes chemical crosslinking polyolefin insulation layer 2 formation insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair in twos, and the right twisting pitch of each twisted pair wire is not more than 120mm and all twisted pair wires to all adopting different twisting pitch; The right wrapped core Copper Foil of periphery polyester composite band screen 3 and the copper-clad surface of every group of twisted pair wire is inside, the inboard of core Copper Foil polyester composite band screen 3 is provided with the zinc-plated stranded copper wire drainage thread 3a of core, and the zinc-plated stranded copper wire drainage thread 3a of core runs through twisted pair wire to overall length and together with copper-clad surface abuts against; Each core Copper Foil polyester composite band screen 3 wrapped core polyester belts 4 of periphery consist of the pair twist group; All pair twist groups are with the stranded formation cable core of stranded lay ratio dextrad of 24 times, inside at the wrapped cable core Copper Foil of the periphery of cable core polyester composite band screen 5 and copper-clad surface, the inboard of cable core Copper Foil polyester composite band screen 5 is provided with the zinc-plated stranded copper wire drainage thread 5a of cable core, and the zinc-plated stranded copper wire drainage thread 5a of cable core runs through the cable core overall length and together with copper-clad surface abuts against; The wrapped cable core polyester belt 6 of periphery at cable core Copper Foil polyester composite band screen 5, periphery at cable core polyester belt 6 extrudes inner sheath 7, periphery coated copper B alloy wire braiding armour 8 at inner sheath 7, at the wrapped waterproof band 9 of periphery of copper alloy silk braiding armour 8, extrude oversheath 10 in the periphery of waterproof band 9.
Wherein, the copper thickness of core or cable core Copper Foil polyester composite band screen is 0.025mm, and the thickness of the polyester of core or cable core Copper Foil polyester composite band screen is 0.023mm, and the wrapped rate of putting up is 40%.Stranded the forming of copper wire that the zinc-plated stranded copper wire drainage thread of core or cable core is 0.43mm by 7 diameters.The thickness of core or cable core polyester belt is 0.07mm, and the wrapped rate of putting up is 25%.
Wherein, the minimum thickness of chemical crosslinking polyolefin insulation layer 2 is not less than 90% of nominal value, and maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.The preparation process of chemical crosslinking polyolefin insulation layer 2 electro-insulating rubbers used is as follows: (1) prepares raw material, ethylene/vinyl acetate copolymer: 12 parts by following component and weight content; High density polyethylene (HDPE): 6 parts; Ethylene-methacrylic acid copolymer: 2 parts; Crosslinking agent cumyl peroxide: 1 part; Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester: 0.9 part; Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD): 0.4 part; Lubricant stearic acid: 1 part; Fire retardant aluminium hydroxide: 30 parts; Fire retardant red phosphorus: 1 part; Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole: 0.1 part; (2) first the banbury temperature is risen to 150 ℃, add successively above-mentioned ethylene/vinyl acetate copolymer, high density polyethylene (HDPE) and ethylene-methacrylic acid copolymer, and plastify mixing even, then add antioxidant β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester, antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD), ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole, fire retardant aluminium hydroxide and fire retardant red phosphorus, and mixing evenly rear blanking; The mixing roll temperature is risen to 70 ℃, above-mentioned compound is dropped in this mixing roll, add lubricant stearic acid and crosslinking agent cumyl peroxide mixing evenly, then glue stuff compounding is moved to and beat triangle Bao Bingjing thin-pass on three-roller open mill 6 times, the roller temperature control is at 65 ℃, front roll temperature is higher 5 ℃ than rear roll temperature, cutting after thin-pass is completed, cooling standby; Chemical crosslinking polyolefin insulation layer 2 adopts cold feeding manner to extrude on the twin-screw rubber extruding machine, the draw ratio of screw rod is 25:1, fuselage one district's temperature of twin-screw rubber extruding machine is 115 ℃, fuselage two district's temperature are 125 ℃, head temperature is 135 ℃, mold temperature is 145 ℃, and rubber extruding machine cooled screw mode is water cooling.When chemical crosslinking polyolefin insulation layer 2 was extruded, the line length of holding of core rod was 1:1.2 with the external diameter ratio of extruding, and the gap between core rod and die sleeve is 1.5mm; Electro-insulating rubber is from entering the cross-linking tube road after the head of twin-screw rubber extruding machine is extruded, and the temperature of crosslinked pipeline is 180 ℃.
The 2nd stranded copper wire of the zinc-plated annealing of class that zinc-plated annealing twisted copper conductors 1 adopts in IEC 60228 standards, zinc-plated employing plating mode substitutes traditional hot tinning mode.
Raw material components and the weight content of copper alloy silk braiding armour 8 are as follows, copper: iron: lead: zinc=91.0:0.05:0.05:10.The diameter of armouring braided wires is 0.33 mm, and tensile strength is 345MPa, and elongation at break is not less than 25%.
In embodiment one to embodiment three, the physical and mechanical properties of armouring braided wires is as follows: 1) toughness: be that an end of the sample of 50 ~ 70mm clips in the level of brave bench vice and between parallel rounding opposite side, vertically stretches on brave bench vice with length.Spring scale is connected on another free end of sample, grasping spring scale, to make the tension force that puts on sample be 1.0 ± 0.1 Ns.Keeping making under the condition of this tension force sample alternately to the brave bench vice limit 90-degree bent of both direction perpendicular to rounding, crooked speed is 45 ~ 50 beats/mins, and sample carries out 90 ° of bendings and the number of times that do not fracture is not less than 10 times.2) elasticity: be on the steel cylinder coupon of 6.4mm at diameter, an end that is the braided wires sample of 254mm with length is fixed on coupon, make it contact with the curved surface of coupon and become plumbness with the coupon axis, the other end of sample is hung on spring scale, with hand spring scale make sample on coupon around 4 circles, keeping sample tension force is 1.1 ± 0.1 Ns.At last sample Panasonic from the spring scale is come, and allow it be in circle around state, measurement is not more than 9.5mm to the coil outer diameter that forms on coupon at the middle part.
The insulating barrier of embodiment one to embodiment three is carried out insulation resistance (15.6 ℃ time) test result as shown in table 1.
Table 1
| ? | Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| Insulation resistance (15.6 ℃) | MΩ·km | ≥3050 | 3870 | 4620 | 4080 |
Insulating barrier in embodiment one to embodiment three is accelerated water absorption test, test dielectric constant and ac capacitor increment rate, result such as table 2 under water 75 ℃ of immersions.The numerical value that records in table be respectively the 14th day with the difference of the 1st day, the 7th day.
Table 2
| ? | Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| Dielectric constant | ? | 6.0 | 3.4 | 2.8 | 3.1 |
| Electric capacity increment rate 14-1(d) | % | ≤3.0 | 0.4 | 0.5 | 0.6 |
| Electric capacity increment rate 14-7(d) | % | ≤1.5 | 0.1 | 0.1 | 0.2 |
| The electric capacity coefficient of stability after 14 days | % | ≤0.5 | 0.1 | 0.1 | 0.2 |
Insulating barrier to embodiment one to embodiment three carries out aging front measuring mechanical property result such as table 3:
Table 3
| ? | Unit | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| Tensile strength | N/mm2 | ≥12.5 | 14.5 | 15.6 | 17.1 |
| Elongation at break | % | ≥250 | 310 | 380 | 295 |
The insulating barrier of embodiment one to embodiment three is carried out the measuring mechanical property of watertight aircase after aging, test result such as table 4, aging condition: 160 ± 1 ℃ of temperature, time: 168h.
Table 4
To test result such as the table 5 that the insulating barrier in embodiment one to embodiment three carries out heat distortion test, experimental condition: 150 ℃ for the treatment of temperatures.
Table 5
Finished cable to embodiment one to embodiment three carries out ozone resistance test, result of the test such as table 6, experimental condition: 90 ± 2 ℃ of temperature, time 24h, ozone concentration 0.030%.
Table 6
| ? | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| Ozone resistance test | The surface is without cracking | Without cracking | Without cracking | Without cracking |
Insulating barrier in embodiment one to embodiment three is carried out VW-1 burning test result such as table 7.
Table 7
Insulating barrier heat in embodiment one to embodiment three is carried out hot elongation test, result such as table 8, experimental condition: 175 ± 1 ℃ for the treatment of temperatures, duration 15 min, mechanical stress 20 N/cm2.
Table 8
Insulated wire cores to embodiment one to embodiment three is carried out ultraviolet-resistant aging result of the test such as table 9, experimental condition: employing 6kW hernia lamp shines and is equipped with the hydraulic pressure water spray of 0.12～0.15MPa, carried out cycle ultraviolet ray irradiation according to 120 minutes for one-period, wherein water spray, illumination simultaneously in 18 minutes, independent illumination in another 102 minutes, exposure irradiation is 1000 hours altogether, then sample was placed in room temperature environment lower 20 hours, observe the sample outward appearance, outward appearance should be without be full of cracks, and carrying out tensile strength and elongation at break test, retention rate both all should be not less than 75%.
Table 9
Finished cable to embodiment one to embodiment three is prevented the erosion test of seawater moisture, result of the test such as table 10, experimental condition: with three long be that saliferous (NaCl) mass concentration of 60 ± 1 ℃ is that 20% solution soaked 10 days for the finished cable sample of 1.1m is placed in temperature.Adopt U-shaped bending when cable soaks, sample two ends respectively have 30cm to surface; After soaking end, cable can be by the withstand voltage test of AC3.5kV/5min; Be on the circular shaft of 9 times of sample of cable external diameters at diameter with cable winding, insulating surface range estimation visible crack.
Table 10
Finished cable to embodiment one to embodiment three carries out low temperature bend test, result of the test such as table 11, experimental condition: after 4h is placed in 40 ℃ of test chambers of finished cable Zai –, keeping this temperature is to be wound around 3 circles on the circular shaft of the outside diameter of cable of 12 times at diameter with sample, then be withdrawn into original position, then be wound around round about again 3 circles, more stretching.This program is proceeded 9 times, and total degree is reached 10 times.Range estimation visible crack after finishing, and carry out the withstand voltage test of AC3.5kV/5min.
Table 11
finished cable to embodiment one to embodiment three carries out low-temperature impact test, result of the test such as table 12, experimental condition: the tested sample of cable that is 0.13m with length is placed in-35 ℃ of test chambers placement 4h, then sample is placed in the wooden plate that is of a size of 50mm*100mm successively, the height that the impulse member that heavy 1.36kg is had steel toe is 915mm from the test coupon height freely falls, the diameter of steel toe is 28.5mm, having diameter is the shock surface that is fillet of 25mm, when falling, the steel toe shock surface is the top of impact specimen vertically downward, the insulating barrier of observing sample has or not cracking.
Table 12
The finished cable of embodiment one to embodiment three is carried out the test of oil resistant ageing properties, result of the test such as table 13, experimental condition: with three long be the IRM902 deep fat immersion 4 days of 100 ± 1 ℃ for the finished cable sample of 1.1m is placed in temperature.Adopt U-shaped bending when cable soaks, sample two ends respectively have 30cm to expose pasta.After soaking end, cable is carried out the withstand voltage test of AC3.5kV/5min; Be on the circular shaft of 9 times of sample of cable external diameters at diameter with cable winding, whether range estimation visible crack and insulation peel off from conductor.
Table 13
Ethylene/vinyl acetate copolymer can be selected the product of the excessive source in Nanjing zero degree plastic material Co., Ltd or Shanghai chemical industry Co., Ltd referred to as EVA.
High density polyethylene (HDPE) adopts referred to as HDPE the product that meets " GB1116-1989 high-density polyethylene resin " standard.
Ethylene-methacrylic acid copolymer can select Shanghai to be in harmony the product of general chemical industry Co., Ltd or Hangzhou Guan Jia plasticizing Co., Ltd.
The crosslinking agent cumyl peroxide claims again crosslink agent DCP, can select the permanent promise Chemical Industry Science Co., Ltd in Yantai or Shanghai Fang Rui to reach chemicals Co., Ltd product.
Antioxidant β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid octadecyl ester claims again antioxidant 1076, and English name antioxidant 1076 can select the product of Yixing City angel synthetic chemistry company or Qingdao seaization fire proofing Co., Ltd.
Antioxidant N, N '-two-betanaphthyl p-phenylenediamine (PPD) claims again antioxidant DNP, can select the product of West Beijing Er Pu Science and Technology Ltd. or Guangzhou Geng Da trade Co., Ltd.
Lubricant stearic acid claims again lubricant SA, formal name used at school: octadecanoid acid, molecular formula CH3(CH2) 16COOH, carry out the standard in " GB/T 9103-1988 industry stearic acid ".
Fire retardant aluminium hydroxide is called again hydrated alumina, can select the product of Jinan Taixing Fine Chemicals Co., ltd.
Fire retardant red phosphorus quality standard is carried out with reference to " GB 4947-2003 ", can select the product of Rugao City rich and powerful fire retardant Co., Ltd.
Ultra-violet absorber 2-(the 2'-hydroxyl-3'-tert-butyl group-5'-aminomethyl phenyl)-5-chlorinated benzotriazole claims again ultraviolet absorbent uv-326, can select the product of Shanghai Yanrun Ray Machine Technology Co., Ltd. or Qingdao China grace chemical industry Co., Ltd.
The utility model is raw materials used, except above producer, all can select other satisfactory like product on market.
The above is only the better possible embodiments of the utility model, and is non-so limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.
Claims (4)
1. an offshore oil and gas engineering is with heat-resisting soft double shield instrument cable, it is characterized in that: the zinc-plated annealing twisted copper conductors periphery of 0.35 ~ 2.5mm2 is extruded with the chemical crosslinking polyolefin insulation layer and consists of insulated wire cores, insulated wire cores is stranded formation twisted pair wire pair in twos, and the right twisting pitch of each described twisted pair wire is not more than 120mm and all twisted pair wires to all adopting different twisting pitch; Every group of right periphery of described twisted pair wire be surrounded with core Copper Foil polyester composite band screen and copper-clad surface inside, the inboard of described core Copper Foil polyester composite band screen is provided with the zinc-plated stranded copper wire drainage thread of core, and the zinc-plated stranded copper wire drainage thread of described core runs through twisted pair wire to overall length and together with copper-clad surface abuts against; Each described core Copper Foil polyester composite band screen periphery is surrounded with the core polyester belt and consists of the pair twist group; All pair twist groups are with the stranded formation cable core of stranded lay ratio dextrad of 16 ~ 24 times, the periphery of described cable core be surrounded with cable core Copper Foil polyester composite band screen and copper-clad surface inside, the inboard of described cable core Copper Foil polyester composite band screen is provided with the zinc-plated stranded copper wire drainage thread of cable core, and the zinc-plated stranded copper wire drainage thread of described cable core runs through the cable core overall length and together with copper-clad surface abuts against; The periphery of described cable core Copper Foil polyester composite band screen is surrounded with the cable core polyester belt, the periphery of described cable core polyester belt is extruded with inner sheath, the periphery of described inner sheath is coated with copper alloy silk braiding armour, the periphery of described copper alloy silk braiding armour is surrounded with the waterproof band, and the periphery of described waterproof band is extruded with oversheath.
2. offshore oil and gas engineering according to claim 1 is with heat-resisting soft double shield instrument cable, it is characterized in that, the copper thickness of described core or cable core Copper Foil polyester composite band screen is 0.018 ~ 0.025mm, the thickness of the polyester of described core or cable core Copper Foil polyester composite band screen is 0.023 ~ 0.030mm, and gross thickness is not more than 0.05mm, and the wrapped rate of putting up is 30 ~ 40%.
3. offshore oil and gas engineering according to claim 1 with heat-resisting soft double shield instrument cable, is characterized in that stranded the forming of copper wire that the zinc-plated stranded copper wire drainage thread of described core or cable core is 0.43mm by 7 diameters.
4. offshore oil and gas engineering according to claim 1 with heat-resisting soft double shield instrument cable, is characterized in that, the thickness of described core or cable core polyester belt is 0.05 ~ 0.07mm, and the wrapped rate of putting up is 20 ~ 25%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606701 CN202940035U (en) | 2012-11-16 | 2012-11-16 | High-temperature-resistant soft double-shielding instrument cable for offshore oil gas engineering |
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| CN 201220606701 CN202940035U (en) | 2012-11-16 | 2012-11-16 | High-temperature-resistant soft double-shielding instrument cable for offshore oil gas engineering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969043A (en) * | 2012-11-16 | 2013-03-13 | 江苏远洋东泽电缆股份有限公司 | High-temperature-resistant soft double-shield instrument cable for maritime oil and gas engineering and manufacturing method thereof |
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2012
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969043A (en) * | 2012-11-16 | 2013-03-13 | 江苏远洋东泽电缆股份有限公司 | High-temperature-resistant soft double-shield instrument cable for maritime oil and gas engineering and manufacturing method thereof |
| CN102969043B (en) * | 2012-11-16 | 2015-06-17 | 江苏远洋东泽电缆股份有限公司 | High-temperature-resistant soft double-shield instrument cable for maritime oil and gas engineering and manufacturing method thereof |
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