CN202796109U

CN202796109U - Converter cable for offshore petroleum platform

Info

Publication number: CN202796109U
Application number: CN 201220370949
Authority: CN
Inventors: 魏宜; 刘忠浩
Original assignee: Cable Group Co Ltd Is Revived In Anhui
Current assignee: Cable Group Co Ltd Is Revived In Anhui
Priority date: 2012-07-30
Filing date: 2012-07-30
Publication date: 2013-03-13
Anticipated expiration: 2022-07-30

Abstract

The utility model discloses a converter cable for an offshore petroleum platform, comprising conductors and insulating layers. The outside of each conductor is wrapped with an insulating layer; then wire cores are arranged a large one after a small one; the insulating wire cores are intertwisted to form a cluster; the outside of the cluster is wrapped with a package belt layer; flame retardation type fiberglass cord is arranged between the package belt layer and the insulating layer to for a filling layer; a shielding layer is wrapped out of the package belt layer; the shielding layer employs a brass wire braiding structure, and the braiding density is not less than 90%; an inside liner is wrapped out of the shielding layer; an armor layer is wrapped outside the inside liner; the armor layer employs large size thick galvanized steel wire armor, the largest gap of the thick galvanized steel wire armor is not more than 2.5 mm, and asphalt processing is carried out; and a flame retardation halogen free oil and slurry resistant polyolefin sheath layer is wrapped outside the armor layer. According to the converter cable for an offshore petroleum platform, the performance index requirements of low smoke, halogen free, flame retardation, etc. of a marine engineering cable are satisfied, and simultaneously, the cable is oil and slurry resistant.

Description

A kind of offshore oil platform frequency-changing cable

Technical field

The utility model relates to cable industry, is specifically related to a kind of offshore oil platform frequency-changing cable.

Background technology

The development of China's oil platform series cable is started in the eighties in last century.At exploitation China offshore petroleum resources

Under the springing up of upsurge, Zhang Zhiqing at that time, Shengyang Electrical Cable Factory, red flag cable factory etc. possess the factory of shipboard cable manufacturing capacity, all once develop offshore oil platform cable.But the macrotype platform in China's marine site probing and oil recovery all was foreign platform basically at that time, and small-sized platform is domestic.Even Domestic Platform also proposes to use the platform cable of foreign country, and the Domestic Platform cable is almost completely kept outside of the door.

Because the every technical property requirements of petroleum platform cable is very high, domestic development is started late.For realizing the production domesticization of oil drilling facility-specific cable, domestic have cable factory to succeed in developing 2000V and following offshore oil and warship ship power cable with reference to military standard GJB1916-94 " naval vessel with low smoke cables and flexible cord general specification ", Norway electrical standard NEK606-2009 " offshore platform with Halogen/anti-mud cable ", the standard IEEE 45-1998 of AAEE " the boats and ships electrical installation rules that IEEE recommends " and the requirement of the U.S. DAA-1048B of SURPENANT company technical specification, realized that tentatively oil platform and ship cable domesticize.

Traditional offshore oil platform is a topic that is difficult to resolve with frequency-changing cable for oil resistant, anti-mud problem in the actual working environment always.

The utility model content

The utility model provides a kind of offshore oil platform frequency-changing cable, satisfies ocean engineering cable and has low cigarette, Halogen, the performance index such as fire-retardant, and this cable has also solved oil resistant, anti-mud problem simultaneously.

Scheme of the present utility model is as follows: a kind of offshore oil platform frequency-changing cable, comprise conductor, insulating barrier, the described conductor outside is enclosed with respectively insulating barrier, behind the wrap insulate layer core is pressed small one and large one spaced apart, then the stranded bunchy of insulated wire cores, the cable core outside is enclosed with belting layer behind the bunchy, be provided with the flame retardant type glass cord between described belting layer and the insulating barrier as packed layer, described belting layer outer wrapping screen, described screen adopts the proof copper-wire braided structure, count is not less than 90%, and the described screen outside is enclosed with inner covering, and the described inner covering outside is enclosed with armour, described armour adopts large specification lagging cover zinc wire armoring, thicker wire armouring maximal clearance is no more than 2.5mm, and smears bitumen treatment, and the armour outside is enclosed with fire-retardant Halogen oil resistant mud polyolefin jacket layer.

Described cross-sectional area of conductor is long-pending to be 25～300mm ², the core number is the 3+3 core.

Described insulating layer material is the flame-proof cross-linking polyolefin.

Described belting layer adopts the wrapped formation of one deck aluminium strip.

Cable core of the present utility model adopts small one and large one alternative arrangement of 3+3, reduced the electromagnetic stack of frequency-changing cable, kept simultaneously the good rounding property of cable, screen adopts proof copper-wire braided to consist of, count is high, has the anti-tampering characteristic of outstanding shielding, armour adopts lagging cover zinc wire armoring, wire gauge is large, hardness is high, has extraordinary prevention mechanical damage characteristic, smears pitch and prevents that effectively seawater is to corrosion and the embrittlement of steel wire, be insulation with the flame-proof cross-linking polyolefine material, have good fire resistance; Halogen gas, gas pH value of water solution and the conductivity of overflowing during the cable material burning are low, have the low-corrosiveness energy; It is few to generate smog during cable fire, and possesses the performances such as wear-resisting, anti-tear, oil resistant, anti-ozone, oil resistant mud, high flame retardant.

Description of drawings

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

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.

A kind of offshore oil platform frequency-changing cable, comprise conductor 1, insulating barrier 2, conductor 1 outside is enclosed with respectively insulating barrier 2, wrap insulate layer 2 rear conductor 1 mutual stranded bunchy, insulating barrier 2 outsides are enclosed with belting layer 3 behind the bunchy, be provided with the flame retardant type glass cord as packed layer 4 between belting layer 3 and the insulating barrier 2, belting layer 3 outsides are enclosed with screen 5, inner covering 6, armour 7, armour 7 adopts lagging cover zinc steel wire, pitch 8 is smeared in the zinc-coated wire gap, armour 7 outsides are enclosed with high flame resistance, low smoke Halogen oil resistant mud polyolefin jacket layer 9

Described conductor 1 sectional area is 25～300 mm ², the core number is the 3+3 core; Insulating barrier 2 materials are the flame-proof cross-linking polyolefin, and belting layer 3 adopts the overlapping wrapped formation of one deck band, and inner covering 5 adopts high flame resistance, low smoke Halogen oil resistant mud polyolefine material to extrude formation.

Although above embodiment of the present utility model has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present utility model and change and modification; when its function that produces does not exceed spiritual that specification and accompanying drawing contain yet, all should be within protection range of the present utility model.

Claims

1. offshore oil platform frequency-changing cable, comprise conductor, insulating barrier, it is characterized in that: the described conductor outside is enclosed with respectively insulating barrier, behind the wrap insulate layer core is pressed small one and large one spaced apart, then the stranded bunchy of insulated wire cores, the cable core outside is enclosed with belting layer behind the bunchy, be provided with the flame retardant type glass cord between described belting layer and the insulating barrier as packed layer, described belting layer outer wrapping screen, described screen adopts the proof copper-wire braided structure, count is not less than 90%, and the described screen outside is enclosed with inner covering, and the described inner covering outside is enclosed with armour, described armour adopts large specification lagging cover zinc wire armoring, thicker wire armouring maximal clearance is no more than 2.5mm, and smears bitumen treatment, and the armour outside is enclosed with fire-retardant Halogen oil resistant mud polyolefin jacket layer.

2. a kind of offshore oil platform frequency-changing cable according to claim 1 is characterized in that it is 25～300mm that described cross-sectional area of conductor amasss ², the core number is the 3+3 core.

3. a kind of offshore oil platform frequency-changing cable according to claim 1, it is characterized in that: described insulating layer material is the flame-proof cross-linking polyolefin.

4. a kind of offshore oil platform frequency-changing cable according to claim 1 is characterized in that: the wrapped formation of described belting layer employing one deck aluminium strip.