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Intrinsically safe oil-resistant and mud-resistant fire-resistant cable for offshore platforms and its preparation process

An intrinsically safe, fire-resistant cable technology, applied in the direction of cable/conductor manufacturing, insulated cables, cables, etc., can solve the problems of increasing oil and gas explosions, cable overload, etc., to achieve the ideal ability to prevent sparks, resist electric field coupling, and resist electromagnetic field interference ideal effect

Active Publication Date: 2016-08-17
ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the cables used by various offshore platforms will not have any problems during normal use. Once the cables are overloaded due to abnormal lines or the cables receive electromagnetic interference, causing sparks, it will increase the risk of oil and gas being ignited and causing an explosion.

Method used

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  • Intrinsically safe oil-resistant and mud-resistant fire-resistant cable for offshore platforms and its preparation process

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Embodiment Construction

[0026] Such as figure 1 The shown is an intrinsically safe oil-resistant and mud-resistant fire-resistant cable for offshore platforms. The cable is sequentially provided with a cable core wrapped by a low-smoke, halogen-free oxygen barrier tape 4, annealed and tinned Cable shielding layer 5 braided by annealed copper wire, inner lining layer 6 extruded by low-smoke halogen-free polyolefin, armor layer 7 braided by annealed tinned annealed copper wire, low-smoke halogen-free polyolefin The outer sheath 8 is made of flame-retardant, oil-resistant and mud-resistant cross-linked polyolefin extruded, and the cable core wrapping layer 4 is also equipped with a refractory conductor 1 using Type 6 annealed tinned copper. At the same time, the refractory conductor is wrapped with two layers of High-temperature calcined mica tape, insulating layer 2 and filler 3 on the outer layer of refractory conductor 1, insulating layer 2 is extruded from low-smoke halogen-free ethylene-propylene r...

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Abstract

The invention discloses an intrinsically safe oil-resistant and mud-resistant fireproof cable for marine engineering platforms and a preparation process. The cable is sequentially provided with a cable core wrapping layer, a cable shielding layer, an inner lining layer, an armor layer, The outer sheath, the cable core wrapping layer is also provided with a refractory conductor, an insulating layer and a filler arranged on the outer layer of the refractory conductor. In addition to the characteristics of low capacitance and low inductance, the cable structure also has excellent shielding performance and mechanical protection performance due to the addition of copper wire braided shielding structure. The cable's anti-electromagnetic field interference and anti-electric field coupling capabilities are relatively ideal. , which effectively prevents the hidden danger of sparks caused by partial discharge caused by changes in the electromagnetic field; the structure of mica tape wrapping reduces the risk of sparks caused by overloading of the cable carrying current, and the mica tape is coated on the surface of the conductor to isolate oxygen, effectively Prevent the generation of sparks in the cable core.

Description

technical field [0001] The invention belongs to the technical field of cable production, and in particular relates to an intrinsically safe oil-resistant and mud-resistant fireproof cable for offshore platforms and a preparation process thereof. Background technique [0002] The trial production of offshore engineering platforms is mainly used for offshore floating structures in the fields of subsea oil and natural gas exploration and exploitation platforms, floating oil storage depots and oil refining. In the actual working process, there will inevitably be a large amount of flammable and explosive oil and gas substances. At present, the cables used by various offshore platforms will not have any problems during normal use. Once the cables are overloaded due to abnormal lines or the cables receive electromagnetic interference, causing sparks, it will increase the risk of oil and gas being ignited and causing an explosion. Contents of the invention [0003] Purpose of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/17H01B7/29H01B7/295H01B13/22H01B13/24H01B13/26H01B13/02
CPCH01B7/17H01B7/29H01B7/295H01B13/02H01B13/22H01B13/24H01B13/26
Inventor 卢军军解向前倪伟康冬冬沈阳阳
Owner ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD
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