Flame-retardant fireproof marine work intrinsic safety instrument cable

An instrument cable and intrinsically safe technology, which is applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of weak cable protection, large space occupied, and poor reliability in use, and achieve strong signal transmission capability, good performance, and low The effect of the possibility of danger

Active Publication Date: 2018-06-22
YANGZHOU SHUGUANG CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the instrument cables used in ships and marine engineering are generally arranged separately and wired independently, which takes up a large space, weak cable protection, and poor reliability.

Method used

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  • Flame-retardant fireproof marine work intrinsic safety instrument cable

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The material of the outer sheath layer 7 is an environmentally friendly flame-retardant material, which consists of 50 parts of high-density polyethylene, 20 parts of epoxy-modified polyurethane, 3 parts of ethylene-acrylic acid magnesium ionomer, and 15 parts of active flame retardant. 1 part, 1 part of tetraerythritol ester, 2 parts of stearic acid, 3 parts of polyethylene carbon black masterbatch;

[0029]The epoxy-modified polyurethane is obtained by the following method: put 30 parts of polyether polyol into a reaction kettle, heat to 120° C. for reflux dehydration for 1 hour while stirring, and then add 35 parts of toluene diisocyanate when the temperature is lowered to 50° C., slowly Raise the temperature to 80°C, stir and react for 4-6 hours to obtain a polyurethane prepolymer; vacuum dehydrate 15 parts of diglycidyl tetrahydrophthalate at 80°C for 1-3 hours, cool down to 60°C, and Add the polyurethane prepolymer, 8 parts of 1,4-butanediol, 15 parts of trimethyl...

Embodiment 2

[0033] The material of the outer sheath layer 7 is an environmentally friendly flame retardant material. The environmentally friendly flame retardant material consists of 70 parts of high density polyethylene, 35 parts of epoxy modified polyurethane, 9 parts of ethylene-acrylic acid magnesium ionomer, 15 parts of oleic acid, sulfur Composed of 5 parts of dilauryl dicarboxylate and 10 parts of polyethylene carbon black masterbatch;

[0034] The epoxy-modified polyurethane is obtained by the following method: put 45 parts of polyether polyol into the reaction kettle, heat to 120° C. for reflux dehydration for 1 hour while stirring, then add 55 parts of toluene diisocyanate when the temperature is lowered to 50° C., slowly Raise the temperature to 80°C, stir and react for 4-6 hours to obtain a polyurethane prepolymer; vacuum dehydrate 25 parts of diglycidyl tetrahydrophthalate at 80°C for 1-3 hours, cool down to 60°C, and then Add the polyurethane prepolymer, 12 parts of 1,4-buta...

Embodiment 3

[0038] The material of the outer sheath layer 7 is an environmentally friendly flame retardant material. The environmentally friendly flame retardant material consists of 65 parts of high density polyethylene, 22 parts of epoxy modified polyurethane, 5 parts of ethylene-acrylic acid magnesium ionomer, 10 parts of stearic acid, Composed of 2 parts of dilauryl thiodicarboxylate and 4 parts of polyethylene carbon black masterbatch;

[0039] The epoxy-modified polyurethane is obtained by the following method: put 35 parts of polyether polyol into the reaction kettle, heat to 120°C for reflux dehydration for 1 hour while stirring, then add 40 parts of toluene diisocyanate when the temperature is lowered to 50°C, slowly Raise the temperature to 80°C, stir and react for 4-6 hours to obtain a polyurethane prepolymer; vacuum dehydrate 15-25 parts of diglycidyl tetrahydrophthalate at 80°C for 1-3 hours, and cool down to 60°C , adding the polyurethane prepolymer, 9 parts of 1,4-butanedio...

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Abstract

The invention discloses a flame-retardant fireproof marine work intrinsic safety instrument cable. The flame-retardant fireproof marine work intrinsic safety instrument cable comprises three groups ofmutually stranded wire cores; a general wrapping layer, a general shielding layer, an inner protection layer, an armoured layer and an outer sheath layer are arranged outside the three groups of stranded wire cores in sequence; an outer drainage wire is arranged between the general wrapping layer and the general shielding layer; fillers are arranged between the three groups of wire cores and thegeneral wrapping layer; each wire core group comprises a tin-plated copper wire beam stranded conductor; an insulating layer, a unit shielding layer and a unit wrapping layer are arranged on the outerside of each tin-plated copper wire beam stranded conductor in sequence; an inner drainage wire is arranged between each insulating layer and the corresponding unit shielding layer; and the outer sheath layer adopts an environment-friendly flame-retardant material with excellent performance. The flame-retardant fireproof marine work intrinsic safety instrument cable is simple in structure, novelin design, stable in structure, high in fireproof performance, and has excellent heat resistance, aging resistance, insulation performance and electrical performance, and high social benefit, economicbenefit and high market prospect.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to a flame-retardant and fire-resistant marine intrinsically safe instrument cable. Background technique [0002] With the transfer of global energy exploitation to the ocean, offshore oil and gas engineering is in the ascendant. Because offshore oil and gas projects are full of flammable and explosive oil and gas, in order to ensure the safety of electrical signal transmission in the equipment, special intrinsically safe instrument cables are required to match it. In the prior art, the instrument cables used in ships and marine engineering are generally arranged separately and wired independently, which takes up a large space, weak protection of the cables, and poor reliability. [0003] Therefore, in view of the above problems, a flame-retardant and fire-resistant marine intrinsically safe instrument cable is proposed. Contents of the invention [0004] The object of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/18H01B7/22H01B7/295C08L23/06C08L75/08C08L23/08C08K13/06C08K9/04C08K3/22C08K3/38C08K3/36C08K3/04C08G18/10C08G18/48C08G18/32C08G18/66
CPCH01B7/0258H01B7/1875H01B7/225H01B7/295C08G18/10C08G18/48C08G18/6674C08G18/6677C08L23/06C08L2203/202C08L2205/035C08L2205/025C08L2201/02C08K2003/2227C08L75/08C08L23/0869C08K13/06C08K9/04C08K3/22C08K3/38C08K3/36C08K3/04C08G18/3206
Inventor 郑连元何正寅梁国华冯国五陈明华田忠
Owner YANGZHOU SHUGUANG CABLE
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