CN202887853U

CN202887853U - Halogen-free fire-proof mud-proof power cable for offshore platform

Info

Publication number: CN202887853U
Application number: CN 201220644573
Authority: CN
Inventors: 韩惠福; 吕伟堂; 孙超南; 赵金磊; 李海荣; 冯保磊
Original assignee: SIAIT CABLE CO Ltd; ANHUI SIAIT CABLES GROUP Co Ltd
Current assignee: SIAIT CABLE CO Ltd; ANHUI SIAIT CABLES GROUP Co Ltd
Priority date: 2012-11-29
Filing date: 2012-11-29
Publication date: 2013-04-17
Anticipated expiration: 2022-11-29

Abstract

The utility model discloses a halogen-free fire-proof mud-proof power cable for an offshore platform. Twisted tinned copper conductors and irradiation crosslinked polyethylene insulation layers extruded on the conductor to form insulated cable cores, a plurality of the insulated cable cores are twisted into cable cores, halogen-free flame retardant glass fiber filling layers are arranged in gaps of the cable cores, halogen-free glass fiber tapered coverings are overlapped and lapped outside the cable cores and an inner sheath is extruded outside the cable cores, a tinned copper wire anchoring layer is knitted outside the inner sheath, and an outer sheath is lapped on the outermost layer of the cable. The halogen-free fire-proof mud-proof power cable has the characteristics of low smoke, inflaming retarding, no halogen, fluoride, asbestos and alkali, mineral oil, fuel oil, water based calcium bromide and oil based drilling fluid resistance and the like, also has excellent electrical, mechanical and environment-friendly functions, and can be widely applied to power transmission systems in occasions such as an oil platform, a ship and warship.

Description

The offshore platform Halogen power cable of anti-mud

Technical field:

The utility model relates to a kind of offshore platform with the Halogen power cable of anti-mud, belongs to technical field of electric wires and cables.

Background technology:

Fast development along with petroleum drilling technology on the China sea, what supporting offshore oil platform private cable was employed with it is more and more extensive, as being called as the power nervous system of offshore platform at the offshore platform of oil platform transmission power with the Halogen power cable of anti-mud, the development of Chinese offshore platform drilling technology is played an important role.Because the particularity of offshore platform cable, present many offshore platform manufactory requires all cable used by offshore platforms must adopt the anti-mud of halogen-free environment-friendly type, oil resisting material, be that offshore platform cable should meet the requirements such as Halogen, low cigarette, fire-retardant, floride-free, low toxicity, oil resistant, anti-mud, and property indices is had clear and definite regulation.

The development of domestic cable used by offshore platform is started late, the technical merit of each producer is uneven, add more and more higher to the requirement of offshore platform cable in recent years, cause many producers since technical force limited, can not design, produce the offshore platform cable product that satisfies specification requirement.Permitted great oil platform manufactory, adopt imported product for cable used by offshore platform is most of, yet the import cable is expensive, the production cycle is long, is unfavorable for the development of Chinese offshore oil platform drilling technology industry.

Summary of the invention:

For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of offshore platform Halogen power cable of anti-mud, have Halogen, low cigarette, fire-retardant, floride-free, without characteristics such as asbestos, alkali-free, anti-mineral oil, fuel oil resistance, water-fast basic calcium bromide, oil resistant base drilling fluids, also have simultaneously the functions such as excellent electric, mechanical, environmental protection, can be widely used in the place electrical power transmission systems such as oil platform, boats and ships, warship, product performance index is better than the international standard requirement.

The utility model technical solution problem adopts following technical scheme:

The offshore platform Halogen power cable of anti-mud, consist of insulated wire cores by stranded tinned copper conductor and the IXPE insulating barrier that extrudes on described conductor, many described insulated wire cores are twisted into cable core, the cable core gap is provided with halogen-free flameproof glass fiber-filled layer, described cable core is overlapping successively outward to be surrounded with Halogen glass fiber tape lapping layer, be extruded with inner sheath, and the outermost layer that described inner sheath is woven with tinned copper wire armour, cable outward is extruded with oversheath.

Described inner sheath is thermosetting halogen-free and low-smoke flame-retardant polyolefin inner sheath.

Described oversheath is the thermosetting LSOH anti-flaming polyolefin of anti-mud oversheath.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1, the utility model conductor adopts stranded tinned copper conductor structure, has greatly improved soft bending property and the corrosion resistance of cable, guarantees that simultaneously cable keeps excellent electric property in running.

2, IXPE is behind electron beam to irradiate crosslinked in the utility model, and mechanical performance improves greatly, guarantees that cable has excellent electric property, mechanical performance.The long-time running temperature of cable is compared with common cable at 105 ℃, and the ampacity of cable improves, and rise appreciably useful life.

3, the utility model adopts the braiding tinned copper wire as armour, not only plays the effect of shielding, and has greatly improved bending property and the tensile strength of cable, has effectively protected the damage of inner sheath simultaneously, improves the useful life of cable.

4, extruding the thermosetting LSOH anti-flaming polyolefin of anti-mud oversheath in the utility model is a kind of novel environment friendly material, not only have excellent flame-retarding characteristic, anti-mud property, have more Halogen, unleaded, floride-free, alkali-free, without the asbestos characteristic, satisfy the instructions for use of cable for petroleum flat fully.

Description of drawings:

Fig. 1 is structural representation of the present utility model.

Number in the figure: 1 conductor, 2 insulating barriers, 3 packed layers, 4 lapping layers, 5 inner sheaths, 6 armours, 7 oversheaths.

Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.

Embodiment:

Embodiment: referring to Fig. 1, the offshore platform Halogen power cable of anti-mud, consist of insulated wire cores by stranded tinned copper conductor and the IXPE insulating barrier 2 that extrudes on conductor, the edge cores that thoroughly do away with are twisted into cable core more, the cable core gap is provided with halogen-free flameproof glass fiber-filled layer 3, the outer overlapping Halogen glass fiber tape lapping layer 4 that is surrounded with of cable core is extruded with inner sheath 5 afterwards, and the inner sheath 5 outer outermost layers that are woven with tinned copper wire armour 6, cable are extruded with oversheath 7.

In the implementation, corresponding structure setting and material are selected to be respectively:

Conductor 1 is to adopt anaerobic tin-coated copper skein silk system to form, conductor layer any surface finish, without burr, Wuxi layer scratch;

Insulating barrier 2 is to be extruded in the conductor that forms on the conductor by IXPE to extrude layer, and adopts electron beam to irradiate crosslinked technique;

Packed layer 3 adopts halogen-free flameproof glass cordage, fills rounding;

Lapping layer 4 adopts the Halogen glass fiber tape overlapping wrapped in the cable core outside;

Inner sheath 5 adopts and extrudes the thermosetting halogen-free and low-smoke flame-retardant polyolefin, adopts electron beam to irradiate crosslinked technique;

Armour 6 adopts the tinned copper wire braiding structure;

Oversheath 7 adopts and extrudes the thermosetting LSOH anti-flaming polyolefin of anti-mud, adopts electron beam to irradiate crosslinked technique.

Claims

1. offshore platform is with the Halogen power cable of anti-mud, it is characterized in that consisting of insulated wire cores by stranded tinned copper conductor (1) and the IXPE insulating barrier (2) that extrudes on described conductor (1), many described insulated wire cores are twisted into cable core, the cable core gap is provided with halogen-free flameproof glass fiber-filled layer (3), described cable core is overlapping successively outward to be surrounded with Halogen glass fiber tape lapping layer (4), be extruded with inner sheath (5), and the outer outermost layer that is woven with tinned copper wire armour (6), cable of described inner sheath (5) is extruded with oversheath (7).

2. offshore platform according to claim 1 is characterized in that with the Halogen power cable of anti-mud described inner sheath (5) is thermosetting halogen-free and low-smoke flame-retardant polyolefin inner sheath (5).

3. offshore platform according to claim 1 is characterized in that with the Halogen power cable of anti-mud described oversheath (7) is the thermosetting LSOH anti-flaming polyolefin of anti-mud oversheath.