CN202384024U - Demagnetized cable for vessel - Google Patents

Abstract

The utility model discloses a demagnetized cable for a vessel. The cable adopts the structure that a water-resisting filling yarn and a conductor are twisted in a mixture manner; a water-resisting wrapping belt and an extruded silicone rubber insulation layer are sequentially wrapped outside the conductor so as to form an insulated core which is sequentially wrapped by a flame-retardant water-resisting belt and an extruded silicone rubber sheath; a glass fiber yarn is weaved on the silicone rubber sheath; and the outermost layer of the cable is a flame-retardant silicate paint. The cable has the advantages of environmental protection, oil resistance, water resistance, resistance to chemical and acid and alkali corrosion, wear resistance, pull resistance, and high-low temperature resistance.

Description

Degaussing cable is used on the naval vessel

Technical field:

The utility model relates to a kind of naval vessel and uses degaussing cable, belongs to technical field of electric wires and cables.

Background technology:

As everyone knows, the earth is a huge magnet, and under situation such as the magnetization in earth magnetic field, external impacts, surrounding space and inside will produce magnetic field for a long time for naval vessel that iron and steel is built or submarine.And the magnetic field of the earth can't change, and the character that iron and steel is prone to be magnetized also can't change.As long as ship navigating is on the ocean, it just must produce magnetic field, if do not eliminate this magnetic field, the naval vessels that are magnetized are easy to receive weapon attackings such as magnetic mine, torpedo, or become the target of magnetic detecting equipment.Naval vessels itself have two magnetic fields, and one is induced field, and selfdemagnetization system counteracting on the naval vessels is leaned in this magnetic field; Another is a fixed magnetic field, and this magnetic field then will lean on degaussing stations or degaussing ship regularly to its elimination of switching on, and a lot of hot-wire coil that is strapped on the naval vessels is exactly a degaussing cable.Ship degassing is offset and is eliminated magnetic field exactly.Its principle is utilized demagnetization principle and anhysteretic principle exactly, and logical alternation decay current becomes electric field to magnetic field in single-core cable, thereby realizes the purpose to the elimination of existing magnetic field.

What general degaussing cable adopted is the General Purpose Rubber material, and second third insulation is adopted in insulation, and sheath adopts chlorosulfonated polyethylene; This kind material working temperature is low, and it allows working temperature for a long time is 90 ℃, and ampacity is little; If be difficult to satisfy demagnetization and use in that the prerequisite of not damaging cable life is next because naval vessels are when demagnetization, its repeatedly in short-term ampacity need reach more than several kilo-amperes; Common single-core cable then can't satisfy instructions for use; If adopt more the heavy in section or adopt two common single-core cable parallel connections to use, then labour intensity is too big, is difficult for realizing.Therefore, in real work, often only use single cross section to be 185mm ²Cable carries out demagnetization.So, though labour intensity has reduced, because General Purpose Rubber cable overload operation, will certainly shorten greatly its useful life.If the degaussing cable of temporary laid is because of changing than being easier to, therefore the cost of available reduction of service life exchanges the labour intensity reduction for, and so this way allows fixed ship degassing station anything but.Because in a single day this ship degassing station is built up, if think to change in large quantities cable, its quantities is big, the height of expense, and the length of duration all will be difficult to bear.Therefore, the demagnetization working cable that fixedly lays can not excess load use.And the General Purpose Rubber degaussing cable waterproof that do not block water, its long period of soaking is in water or seawater, and long period of soaking is in tens meters deep water sometimes; Cause intaking in insulation and the conductor, it is in big ampacity demagnetization work, and conductor can generate heat seriously; Issue thermal change with the water of insulating surface at the state of heat in the conductor and become steam expansion; Can break insulation and sheath by drum, cause cable bad, even scrap.So the General Purpose Rubber degaussing cable then is difficult to be competent at.

Summary of the invention:

For overcoming the defective of prior art; The purpose of the utility model is to provide a kind of to be had fire-retardant, ampacity and reaches the degaussing cable that softness is convenient to move greatly; Be particularly useful for the occasion that water craft, submarine etc. have magnetic, this cable has the characteristic of environmental protection, oil resistant, waterproof, chemically-resistant and acid and alkali corrosion, wear-resisting, tension, high-low temperature resistant.

The utility model technical solution problem adopts following technical scheme:

Degaussing cable is used on the naval vessel; Employing blocks water and fills yarn and mix stranded with conductor; Outside said conductor the wrapped successively twining package tape that blocks water, extrude silicone rubber insulation layer and constitute insulated wire cores; Outside said insulated wire cores, be surrounded with the flame retardant type waterstop successively, be extruded with silicone rubber jacket, be woven with glass fiber yarn on the said silicone rubber jacket, the outermost layer of cable is the flame retardant silica gel lacquer.

Compared with present technology, the beneficial effect of the utility model is embodied in:

1, the utility model cable adopts the anti-oxidant zinc-plated oxygen-free copper flexible conductor of high conductivity; Because very little of the oxygen content of copper, impurity is few, and conductivity is high; Improved the useful life of cable greatly; The ampacity of temperature resistant grade and cable, and mixed the filling yarn that blocks water in the stranded conductor slit stranded, strengthened the block-water performance of conductor greatly.

2, conductive surface adopts the twining package tape that blocks water; Between conductor and insulation, adopt the twining package tape that blocks water, can strengthen the water preventing ability between conductor and the insulation greatly, to prevent between conductor and the insulation because frequent crooked moving produces the slit water inlet; This layer blocking water between twining package tape and the conductor that blocks water filled the water preventing ability that yarn can improve cable greatly; Can prolong the useful life of cable, can prevent that the water between conductor from being burst insulation by the conductor heating, cause cable bad and scrap.

3, insulating barrier adopts the high anti-tear silicon rubber insulation material of environment-friendly type, and this Insulation Material allows working temperature can reach more than 180 ℃ for a long time, and is higher more than 90 ℃ than the common second third insulation long-term work temperature, can improve the ampacity of cable greatly.And common degaussing cable adopts is ethylene propylene rubber insulated, because ethylene propylene rubber insulated long-term permission working temperature is 90 ℃, down long-pending in the conductor same cross-sectional; Its ampacity is low, can't reach the purpose of demagnetization, must adopt two parallel connections to carry out demagnetization; Two parallelly connected labour intensity are very big; Can't realize that if single General Purpose Rubber cable overload operation, will certainly shorten greatly its useful life.And the thermal conductivity of silicon rubber is good, is the twice of General Purpose Rubber, and this also can improve the current capacity of cable greatly, and this has improved the demagnetization ability of cable greatly.

4, the wrapped flame retardant type waterstop in insulated wire cores surface, degaussing cable all is a single-core cable, for the rippability that guarantees to insulate with sheath; Insulation and sheath often adopt extrusion way twice, have the slit unavoidably between insulation and the sheath like this, if the long-term immersion of cable is laid; Its cable socket can be intake unavoidably, and water can become steam under the conductor febrile state, and steam can burst sheath; Cause cable destruction and can't use, waterstop has been arranged, can stop moisture content to get into and destroy cable; Can prolong cable useful life, and waterstop is flame retardant type, adopts flame retardant type waterstop flame-proof silicon rubber sheath in addition again; Can improve the fire-retardant rank of cable greatly, can satisfy the fire-retardant requirement of shipboard cable category-A, improve the fail safe that cable uses.

5, sheath adopts environmental protection, oil resistant, corrosion-resistant, high-low temperature resistant, fire-retardant, high anti-tear silastic material; It is 180 ℃ that this material allows working temperature for a long time; Can reach in a short time and carry out work more than 260 ℃, such working temperature is high more a lot of than General Purpose Rubber cable, and corresponding its ampacity is also big a lot; Its cable demagnetization ability also improves greatly; And the resistance to low temperature of silicon rubber is also very good, under-60 ℃, also keeps flexibility, and this cryogenic property can satisfy the use of each season and district cable; Because demagnetization work all is under outdoor open-air condition, to carry out, its work under bad environment, common cable its sheath with this understanding is very easily aging; Crack, and the anti-ozone aging of this sheath, oxygen aging, light aging and atmospheric aging excellent performance, even it tanned by the sun several years outdoor; Performance does not almost change, and this silicone rubber jacket material water absorption spy is low, and its water absorption of soaking for a long time is no more than 0.015%; Even make moist, its electrical insulation capability is still more stable, and the silicone rubber jacket material does not have the effect of growing to various algae and mould in the water and in the seawater; Mildew resistance is fabulous, can resist erosion and the destruction of marine growth to it greatly, and sheath adopts fire proofing; Can improve the fire resistance of cable, satisfying boats and ships must other requirement of category-A flame retardant grade to cable.

6, jacket surface adopts acid and alkali-resistance, the braiding of corrosion-resistant fiberglass yarn; And weaving surfaces coated with high-low temperature resistant, corrosion-resistant flame retardant silica gel lacquer; Cable surface is woven with glass fiber yarn, can improve anti-flammability, the tensile property of cable and pull performance, and also can strengthen the resistance to wear of cable; The braided wires surfaces coated is with high-low temperature resistant, corrosion-resistant flame retardant silica gel lacquer, to strengthen heat-resisting, cold-resistant, fire-retardant, the water-fast and corrosion resistance of cable.

Description of drawings:

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

Label among the figure: 1 conductor, 2 twining package tapes that block water, 3 silicone rubber insulation layers, 4 flame retardant type waterstops, 5 silicone rubber jackets, 6 flame retardant silica gels lacquer.

Below pass through embodiment, and combine accompanying drawing that the utility model is described further.

Embodiment:

Embodiment: combine Fig. 1; Degaussing cable is used on the naval vessel of present embodiment; Its adopt block water fill yarn mix with conductor 1 stranded, outside said conductor 1 the wrapped successively twining package tape 2 that blocks water, extrude silicone rubber insulation layer 3 formation insulated wire cores, outside said insulated wire cores, be surrounded with flame retardant type waterstop 4 successively, be extruded with silicone rubber jacket 5; Be woven with glass fiber yarn on the said silicone rubber jacket 5, the outermost layer of cable is a flame retardant silica gel lacquer 6.

This cable by the anti-oxidant zinc-plated oxygen-free copper conductor of annealing high conductivity earlier the bundle strand carry out multiple strand then and process flexible conductor, and in the conductor space, mix the stranded filling yarn that blocks water, block water and fill yarn and when running into water, expands and block the immersion of water, with raising conductor water preventing ability.And, immerse or infiltration from conductor and insulated combination to prevent water part, thereby reach the effect that conductor blocks water at the wrapped twining package tape that blocks water of surface of conductors; Surface at the twining package tape that blocks water extrudes high-low temperature resistant; Corrosion-resistant, environmental protection silicon rubber insulation material, this Insulation Material allows working temperature can reach more than 180 ℃ for a long time; Higher more than 90 ℃ than the common second third insulation long-term work temperature, can improve the ampacity of cable greatly; The wrapped flame retardant type waterstop in silicon rubber insulation surface, this flame retardant type waterstop can improve the anti-flammability of cable, and can prevent the immersion and the infiltration of moisture content, to reach the purpose of protection cable; Flame retardant type waterstop outside is extruded with high-low temperature resistant, and corrosion-resistant, environmental protection flame retardant silicone rubber jacket material, this protective cover material allow working temperature can reach more than 180 ℃ for a long time, and is high more a lot of than General Purpose Rubber protective cover material, at the ampacity that helps to improve cable; The silicone rubber jacket outside is woven with high temperature resistant; The acid-alkali-corrosive-resisting glass fiber yarn; This braid can improve the tension of cable, wear-resisting effect, and scribbles anticorrosion high-low temperature resistant flame retardant silicate paint in glass fiber yarn outside, with the protection that improves cable and water-fast, seawater corrosion and fire-retardant effect.

Claims (1)

1. degaussing cable is used on the naval vessel; It is characterized in that adopting blocking water and fill yarn and mix stranded with conductor (1); Outside said conductor (1) the wrapped successively twining package tape that blocks water (2), extrude silicone rubber insulation layer (3) and constitute insulated wire cores; Outside said insulated wire cores, be surrounded with flame retardant type waterstop (4) successively, be extruded with silicone rubber jacket (5), said silicone rubber jacket is woven with glass fiber yarn on (5), and the outermost layer of cable is a flame retardant silica gel lacquer (6).

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