Jet flame and hydrocarbon flame resistant medium-voltage cable for offshore oil platform and manufacturing method thereof

An offshore oil and flame technology, which is applied in the direction of cable/conductor manufacturing, insulating cables, conductor/cable insulation, etc., can solve the problems of lack of resistance to hydrocarbon flames and jet flames, hidden safety hazards, etc., and achieve good deformation and structure Stable, contributes to fire prevention, and increases elongation at break

Active Publication Date: 2021-03-09
WUXI MINGZHU CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional oil and gas engineering equipment, when the cables need to be resistant to jet flames and hydrocarbon flames, fiber flame-resistant cables will be used as a substitute. However, due to the fire-resistant temperature rating of fiber flame-resistant cables, the highest IEC60331 standard is 830 ° C, and the BS6387 standard is 950. ℃, which are far lower than the temperature level of 1100 ℃ of hydrocarbon flame and 1300 ℃ of jet flame, there are great safety hazards in jet flame and hydrocarbon flame fire
[0003] The Chinese invention patent with the publication number CN 103594177B discloses a hydrocarbon aging-resistant instrument cable for petrochemical equipment; the Chinese invention patent with the publication number CN 103578641B discloses a hydrocarbon aging-resistant power cable for petrochemical equipment. However, none of them are resistant to hydrocarbon flames and jet flames.

Method used

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  • Jet flame and hydrocarbon flame resistant medium-voltage cable for offshore oil platform and manufacturing method thereof
  • Jet flame and hydrocarbon flame resistant medium-voltage cable for offshore oil platform and manufacturing method thereof
  • Jet flame and hydrocarbon flame resistant medium-voltage cable for offshore oil platform and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Wherein, the manufacture of jet flame and hydrocarbon flame-resistant inner sheath 11 includes the following steps in turn: (1) Prepare raw materials according to the following components and weight content, LEVAPREN 500HV (VA content is 50%wt): 20 parts; Flame agent nano-metal aluminum hydroxide: 30 parts; flame retardant nano-ammonium pentaborate: 2 parts; nano-montmorillonite: 4 parts; bis-tert-butylperoxycumene: 0.6 parts; Isocyanate: 0.2 parts; antioxidant XH-3: 0.4 parts; 2-mercaptobenzimidazole: 0.2 parts; methyl silicone oil: 0.5 parts; fumed silica: 6 parts; coupling agent A-172: 0.2 parts; Colorant masterbatch: 0.6 parts, glass powder with a softening temperature of 360°C: 4 parts and blend modifier Elvaloy 742: 2 parts;

[0039] (2) Mix and banbury other raw materials except Evapine rubber, bis-tert-butylperoxycymene and triallyl isocyanurate. The temperature of the banbury mixer is 25°C, and the mixing time is 6 minutes;

[0040] (3) Raise the temperature of...

Embodiment 2

[0046] Wherein, the manufacture of jet flame and hydrocarbon flame-resistant inner sheath 11 includes the following steps in turn: (1) Prepare raw materials according to the following components and weight content, LEVAPREN 500HV (VA content is 50%wt): 20 parts; Flame agent nano metal magnesium hydroxide: 32 parts; flame retardant nano barium metaborate: 3 parts; nano montmorillonite: 6 parts; bis-tert-butylperoxycumene: 0.8 parts; Isocyanate: 0.3 parts; antioxidant XH-3: 0.5 parts; 2-mercaptobenzimidazole: 0.3 parts; methyl silicone oil: 0.8 parts; fumed silica: 8 parts; coupling agent A-172: 0.3 parts; Colorant masterbatch: 0.8 parts, glass powder with a softening temperature of 400°C: 6 parts and blend modifier Elvaloy 742: 3 parts;

[0047] (2) Mix and banbury other raw materials except Evapine rubber, bis-tert-butylperoxycumene and triallyl isocyanurate. The temperature of the banbury mixer is 30°C, and the mixing time is 7 minutes;

[0048] (3) Raise the temperature of ...

Embodiment 3

[0054] Wherein, the manufacture of jet flame and hydrocarbon flame-resistant inner sheath 11 includes the following steps in turn: (1) Prepare raw materials according to the following components and weight content, LEVAPREN 500HV (VA content is 50%wt): 20 parts; Flame agent nano-metal aluminum hydroxide: 35 parts; flame retardant nano-zinc fluoroborate: 5 parts; nano-montmorillonite: 8 parts; bis-tert-butylperoxycumene: 1 part; Isocyanate: 0.4 parts; antioxidant XH-3: 0.6 parts; 2-mercaptobenzimidazole: 0.4 parts; methyl silicone oil: 1 part; fumed silica: 10 parts; coupling agent A-172: 0.5 parts; Colorant masterbatch: 1 part, glass powder with a softening temperature of 500°C: 8 parts and blend modifier Elvaloy 742: 4 parts;

[0055] (2) Mix and banbury other raw materials except Evapine rubber, bis-tert-butylperoxycumene and triallyl isocyanurate. The temperature of the banbury mixer is 35°C, and the mixing time is 8 minutes;

[0056] (3) Raise the temperature of the inter...

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Abstract

The invention relates to a jet flame and hydrocarbon flame resistant medium-voltage cable for an offshore oil platform and a manufacturing method thereof. A semi-conductive conductor shielding layer,an insulating layer and a semi-conductive insulating shielding layer wrap the periphery of a stranded tin-plated annealed copper conductor from inside to outside in a three-layer co-extrusion mode; atinned copper wire shielding layer is woven on the periphery of a semi-conductive insulation shielding layer to form a shielding wire core, a plurality of shielding wire cores are twisted to form a cable core, an inner silicone oil layer is extruded on the periphery of the cable core, an inner lining layer is extruded on the periphery of the inner silicone oil layer, a fireproof wrapping tape is wrapped on the periphery of the inner lining layer, and an armor layer is wrapped on the periphery of the fireproof wrapping tape; the periphery of the armor layer is extruded with an outer silicone oil layer, the periphery of the outer silicone oil layer is extruded with a jet flame and hydrocarbon flame resistant inner sheath, and the periphery of the jet flame and hydrocarbon flame resistant inner sheath is extruded with a slurry resistant cross-linked polyolefin outer sheath. The cable adopts a double-layer composite sheath, can bear high-temperature flame of 1300 DEG C for 120 minutes under rated voltage, and does not have a grounding fault or a short circuit.

Description

technical field [0001] The invention relates to a cable for offshore oil platforms, in particular to a jet flame and hydrocarbon flame resistant medium voltage cable for offshore oil platforms, and also relates to a jet flame and hydrocarbon flame resistant medium voltage cable for offshore oil platforms The manufacturing method belongs to the technical field of special cables for offshore oil platforms. Background technique [0002] Oil and gas engineering equipment is very vulnerable to fire damage. When a fire occurs, the high temperature caused by oil and gas combustion can easily cause equipment failure and cause great harm to the safety of the entire platform and personnel. Therefore, oil and gas engineering equipment needs to pay special attention to fire protection. Its fire protection is divided into 3 categories, namely anti-fiber flame, anti-hydrocarbon flame and anti-jet flame. At present, supporting cables for oil and gas engineering equipment can only achieve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/29H01B7/17H01B7/02H01B7/295H01B7/28H01B7/18H01B13/00H01B13/22H01B13/06H01B13/14H01B13/24C08L23/08C08L83/04C08K13/04C08K7/26C08K3/34C08K3/22C08K3/40
CPCH01B7/29H01B7/17H01B7/02H01B7/295H01B7/2813H01B7/28H01B7/18H01B13/00H01B13/22H01B13/06H01B13/14H01B13/24C08L23/0853C08K2201/011C08K2003/2227C08K2003/2224C08L2201/02C08L2203/202C08L83/04C08K13/04C08K7/26C08K3/346C08K3/22C08K3/40Y02A30/14
Inventor 张彦利胡金岭潘学勇
Owner WUXI MINGZHU CABLE
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