CN202332380U

CN202332380U - Hydrocarbon-flame resistant cable for bulk shielding instrument for ocean engineering

Info

Publication number: CN202332380U
Application number: CN2011204882987U
Authority: CN
Inventors: 李永江; 陆云春
Original assignee: Jiangsu Yuanyang Dongze Cable Co Ltd
Current assignee: Jiangsu Yuanyang Dongze Cable Co Ltd
Priority date: 2011-11-30
Filing date: 2011-11-30
Publication date: 2012-07-11
Anticipated expiration: 2021-11-30

Abstract

The utility model relates to a hydrocarbon-flame resistant cable for a bulk shielding instrument for ocean engineering. The cable is characterized in that core wires of the cable are lapped with a core wire mica tape and are extruded with an insulation layer to form insulation core wires; the insulation core wires are stranded pairwise to form a stranded wire pair; each stranded wire pair is lapped with a copper foil and polyester composite tape shielding layer; a drainage wire is arranged on the inner side of the shielding layer; the drainage wire penetrates through the total length of the stranded wire pair and props against the copper foil surface; a plurality of stranded wire pairs form the cable core; a core filler is arranged at the periphery of the cable core; a liner layer is extruded at the periphery of the core filler, and the periphery of the liner lay is wrapped with a tinned copper wire-braided armor layer; a flame-retardant cross-linked polyolefin inner sheath is extruded at the periphery of the armor layer; a hydrocarbon-flame resistant polyolefin sheath is extruded at the periphery of the inner sheath; a cable mica tape is lapped at the periphery of the hydrocarbon-flame resistant polyolefin sheath; and a flame-retardant uncross-linked polyolefin outer sheath is extruded at the periphery of the cable mica tape. The cable provided by the utility model can be used for preventing external high temperature from rapidly diffusing to the inside of the cable when hydrocarbon flame occurs, thereby realizing the goal of hydrocarbon flame resistance.

Description

Ocean engineering is with the hydrocarbon of anti-carbon fire bulk shielding instrument cable

Technical field

The utility model relates to a kind of instrument cable, and particularly a kind of ocean engineering is with the hydrocarbon of anti-carbon fire bulk shielding instrument cable.

Background technology

Ocean engineering oil recovery deathtrap is contained hydro carbons more and is prone to fuel vapor, dust; Be easy to generate sudden high temperature fire, instantaneous the reaching more than 1000 ℃ of temperature meeting calculated according to Exxon Mobil company; For tackling this kind situation, cable need possess anti-1100 ℃ of carbon hydrocarbon bad temper abilities.At present no matter be that common shipboard cable or the general ocean engineering cable of anti-mud all can not satisfy this requirement.

The utility model content

The purpose of the utility model is; Overcome the problem that exists in the prior art; Provide a kind of ocean engineering with the hydrocarbon of anti-carbon fire bulk shielding instrument cable, outside high temperature extends to cable inside rapidly in the time of can stoping generation carbon hydrocarbon fire, has realized the fiery target of the cable hydrocarbon of anti-carbon.

For solving above technical problem; A kind of ocean engineering that the utility model provided is with the hydrocarbon of anti-carbon fire bulk shielding instrument cable; By many sectional areas is that the conductor of 0.5 ~ 2.5mm2 is twisted into cored wire conductor, and the periphery of said cored wire conductor is surrounded with the heart yearn mica tape, and the periphery extruded insulation layer of said heart yearn mica tape constitutes the insulation heart yearn; The stranded in twos formation twisted pair wire of said insulation heart yearn is right; The said twisted pair wire of many groups constitutes cable core to multiple strand, and the periphery of said cable core is filled with non-hygroscopic and fills out core, the periphery that said non-hygroscopic is filled out core be surrounded with Copper Foil polyester composite band screen and copper-clad surface inside; The inboard of said Copper Foil polyester composite band screen is provided with drainage thread, and said drainage thread runs through the cable core overall length and abuts against with copper-clad surface; The periphery of said Copper Foil polyester composite band screen is extruded with the Halogen laying; The periphery of said Halogen laying is coated with tinned copper wire braiding armour; The periphery of said tinned copper wire braiding armour is extruded with flame-proof cross-linking polyolefin inner sheath; The periphery of said flame-proof cross-linking polyolefin inner sheath is extruded with the hydrocarbon of anti-carbon fire polyolefin jacket, and the periphery of the said hydrocarbon of anti-carbon fire polyolefin jacket is surrounded with the cable mica tape, and the periphery of said cable mica tape is extruded with fire-retardant non-crosslinked polyolefin oversheath.

With respect to prior art, the utility model has been obtained following beneficial effect: the periphery of each cored wire conductor and whole cable is surrounded with mica tape respectively, and mica tape has good fire resistance; The armour periphery is provided with three layers of sheath and one deck mica tape; Flame-proof cross-linking polyolefin inner sheath not only has good flame retardancy but also have mechanical performance preferably; Inner sheath is outer to adopt the hydrocarbon of the anti-carbon fire polyolefin jacket can anti-1100 ℃ of carbon hydrocarbon fire; When carbon hydrocarbon fire takes place, stop outside high temperature rapidly to the inner extension of cable, fire-retardant non-crosslinked polyolefin oversheath has fire resistance and decay resistance preferably.

As the preferred version of the utility model, said heart yearn mica tape and cable mica tape all adopt eclipsed form wrapped, and the wrapped rate of putting up is 20% ~ 40%.

As the preferred version of the utility model, said Copper Foil polyester composite band screen adopts eclipsed form wrapped, and the rate of putting up is 15% ~ 30%.

Description of drawings

Fig. 1 is the structural representation of the utility model ocean engineering with the hydrocarbon of anti-carbon fire bulk shielding instrument cable.

Among the figure: 1 cored wire conductor, 2 heart yearn mica tapes, 3 insulating barriers, 4 non-hygroscopics are filled out core, 5 Copper Foil polyester composite band screens, the zinc-plated stranded copper wire drainage thread of 5a, 6 Halogen layings, 7 tinned copper wires braiding armour, 8 flame-proof cross-linking polyolefin inner sheaths, 9 hydrocarbon of anti-carbon fire polyolefin jacket, 10 cable mica tapes, 11 fire-retardant non-crosslinked polyolefin oversheaths.

Embodiment

As shown in Figure 1; The ocean engineering of the utility model is with the hydrocarbon of anti-carbon fire bulk shielding instrument cable; By many sectional areas is that the conductor of 0.5 ~ 2.5mm2 is twisted into cored wire conductor 1, and the periphery of cored wire conductor 1 is surrounded with heart yearn mica tape 2, and the periphery of heart yearn mica tape 2 extrudes Halogen ethylene-propylene rubber or crosslinked polyetylene insulated layer 3 constitutes the insulation heart yearns; The stranded in twos formation twisted pair wire of insulation heart yearn is right; Many group twisted pair wires constitute cable core to multiple strand, and the periphery of cable core is filled with non-hygroscopic and fills out core 4, the periphery that non-hygroscopic is filled out core 4 be surrounded with Copper Foil polyester composite band screen 5 and copper-clad surface inside; The inboard of Copper Foil polyester composite band screen 5 is provided with zinc-plated stranded copper wire drainage thread 5a, and zinc-plated stranded copper wire drainage thread 5a runs through the cable core overall length and abuts against with copper-clad surface; The periphery of Copper Foil polyester composite band screen 5 is extruded with Halogen laying 6; The periphery of Halogen laying 6 is coated with tinned copper wire braiding armour 7; The periphery of tinned copper wire braiding armour 7 is extruded with flame-proof cross-linking polyolefin inner sheath 8; The periphery of flame-proof cross-linking polyolefin inner sheath 8 is extruded with the hydrocarbon of anti-carbon fire polyolefin jacket 9, and the periphery of the hydrocarbon of anti-carbon fire polyolefin jacket 9 is surrounded with cable mica tape 10, and the periphery of cable mica tape 10 is extruded with fire-retardant non-crosslinked polyolefin oversheath 11.

Heart yearn mica tape 2 and cable mica tape 10 all adopt eclipsed form wrapped, and the wrapped rate of putting up is 20% ~ 40%; Copper Foil polyester composite band screen 5 adopts eclipsed form wrapped, and the rate of putting up is 15% ~ 30%.

Except that the foregoing description, 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

1. an ocean engineering is with the hydrocarbon of anti-carbon fire bulk shielding instrument cable; It is characterized in that: by many sectional areas is that the conductor of 0.5 ~ 2.5mm2 is twisted into cored wire conductor; The periphery of said cored wire conductor is surrounded with the heart yearn mica tape; The periphery extruded insulation layer of said heart yearn mica tape constitutes the insulation heart yearn, and the stranded in twos formation twisted pair wire of said insulation heart yearn is right, organizes said twisted pair wire more multiple strand is constituted cable core; The periphery of said cable core is filled with non-hygroscopic and fills out core; The periphery that said non-hygroscopic is filled out core be surrounded with Copper Foil polyester composite band screen and copper-clad surface inside, the inboard of said Copper Foil polyester composite band screen is provided with drainage thread, said drainage thread runs through the cable core overall length and abuts against with copper-clad surface; The periphery of said Copper Foil polyester composite band screen is extruded with the Halogen laying; The periphery of said Halogen laying is coated with tinned copper wire braiding armour; The periphery of said tinned copper wire braiding armour is extruded with flame-proof cross-linking polyolefin inner sheath; The periphery of said flame-proof cross-linking polyolefin inner sheath is extruded with the hydrocarbon of anti-carbon fire polyolefin jacket, and the periphery of the said hydrocarbon of anti-carbon fire polyolefin jacket is surrounded with the cable mica tape, and the periphery of said cable mica tape is extruded with fire-retardant non-crosslinked polyolefin oversheath.

2. ocean engineering according to claim 1 is with the hydrocarbon of anti-carbon fire bulk shielding instrument cable, and it is characterized in that: said heart yearn mica tape and cable mica tape all adopt eclipsed form wrapped, and the wrapped rate of putting up is 20% ~ 40%.

3. ocean engineering according to claim 1 is with the hydrocarbon of anti-carbon fire bulk shielding instrument cable, and it is characterized in that: said Copper Foil polyester composite band screen adopts eclipsed form wrapped, and the rate of putting up is 15% ~ 30%.