CN-224232385-U - Low-temperature-resistant temperature-limiting drilling power cable for oil platform

CN224232385UCN 224232385 UCN224232385 UCN 224232385UCN-224232385-U

Abstract

The low-temperature-resistant temperature-limiting drilling power cable for the oil platform comprises a conductor formed by twisting a main line core conductor and a ground wire core conductor, an insulating layer wrapped on the outer surfaces of the main line core conductor and the ground wire core conductor, and a functional layer wrapped outside the conductor, wherein the insulating layer is an automatic temperature-control semi-conductive layer, the functional layer is an inner sheath, a flexible tinned alloy wire weaving layer and an outer sheath from inside to outside in sequence, and the inner sheath and the outer sheath are made of irradiation crosslinking temperature-resistant 90 ℃ polyurethane materials compatible with insulating materials. The cable not only can adapt to normal work in a low-temperature environment, but also has an automatic temperature limiting protection function, can automatically cut off power supply when the system is overheated, and effectively protects on-line electrical equipment. Meanwhile, the cable also needs to have multiple performances such as flame retardance, scratch resistance, tensile strength, oil resistance, acid and alkali resistance, salt mist resistance and the like so as to cope with the severe environment of the drilling platform, and a temperature monitoring device is not required to be additionally installed, so that the installation, use and maintenance processes are simplified, and the operation efficiency and the safety are improved.

Inventors

WANG QISHENG
NIE YUYANG
ZENG ZHIMIN
LI SHENGTAO
HAN ZHIPENG

Assignees

天津金山电线电缆股份有限公司

Dates

Publication Date: 20260512
Application Date: 20241106

Claims (6)

1. A low-temperature-resistant temperature-limiting drilling power cable for an oil platform comprises a conductor formed by twisting a main line core conductor and a ground wire core conductor, an insulating layer wrapped on the outer surfaces of the main line core conductor and the ground wire core conductor, and a functional layer wrapped outside the conductor, and is characterized in that the insulating layer is an automatic temperature-control semi-conductive layer, the functional layer is an inner sheath, a flexible tinned alloy wire weaving layer and an outer sheath sequentially from inside to outside, the thickness of the inner sheath is smaller than that of the outer sheath, and the inner sheath and the outer sheath are made of the same irradiation crosslinking temperature-resistant polyurethane material compatible with an insulating material.
2. The low-temperature-resistant and temperature-limited drilling power cable for the oil platform according to claim 1, wherein the low-temperature-resistant and temperature-limited drilling power cable for the oil platform is characterized in that the surface of the metal copper wire stranded conductor is smooth, and the section of the metal copper wire stranded conductor is a whole circle.
3. The low temperature resistant and temperature limited drilling power cable for oil platforms according to claim 1, wherein the thickness of the insulating layer is 0.8-3.0mm.
4. The low temperature resistant and temperature limited drilling power cable for oil platforms according to claim 1, wherein the semiconductive layer is made of semiconductive polyolefin material.
5. The low temperature resistant and temperature limited drilling power cable for an oil platform according to claim 1, wherein the thickness of the inner sheath is 1/3-1/2 of the thickness of the outer sheath.
6. The low temperature resistant and temperature limited drilling power cable for oil platforms according to claim 1, wherein the thickness of the flexible tinned alloy wire braid is 0.15mm, 0.20mm, 0.25mm, 0.30 mm.

Description

Low-temperature-resistant temperature-limiting drilling power cable for oil platform Technical Field The utility model relates to the technical field of wires and cables, in particular to a low-temperature-resistant temperature-limiting drilling power cable specially designed for an oil drilling platform, which aims to meet the high-performance requirement on the cable under an extreme working environment, ensure the stable operation of electrical equipment under the low-temperature condition, and provide automatic power-off protection when a system is overheated, thereby improving the safety and efficiency of drilling operation. Background The oil drilling platform is used as a key facility for offshore oil exploration and development, the operation environment is complex and changeable, and particularly, the oil drilling platform has extremely high requirements on matched wires and cables, such as low temperature, high humidity, salt spray corrosion, potential fire risks and the like. The traditional cable is easy to harden and embrittle at low temperature, influences the conductivity and the mechanical strength, and meanwhile, under the condition of high temperature or short circuit, an effective self-protection mechanism is lacked, so that electrical equipment is possibly damaged, even fire is caused, and the operation safety is seriously threatened. The prior art is not enough: the low temperature resistance is limited, and most conventional cables have reduced performance in low temperature environments, which affects the stability of signal transmission and power supply. The traditional cable does not have an automatic temperature control function, and once the temperature is too high, the power supply cannot be cut off in time, so that equipment damage or safety accidents are easily caused. The weather resistance is poor, and the durability of the common cable is insufficient in the face of severe conditions such as oil stain, acid-base corrosion, salt spray corrosion and the like on a drilling platform. The mechanical strength is low, and in a complex operation environment, the cable is easily damaged by external force, and the service life and the safety are influenced. The installation and maintenance are complex, and the temperature monitoring and protecting device is additionally installed, so that the installation cost and the operation difficulty are increased. In view of the above background, the present utility model is directed to a low temperature resistant and temperature limited drilling power cable specifically designed for use with an oil drilling platform. Disclosure of utility model Aiming at the problems existing in the prior art, the utility model provides a low-temperature-resistant temperature-limiting drilling power cable for an oil platform. The cable not only can adapt to normal work in a low-temperature environment, but also has an automatic temperature limiting protection function, can automatically cut off power supply when the system is overheated, and effectively protects on-line electrical equipment. Meanwhile, the cable also needs to have multiple performances such as flame retardance, scratch resistance, tensile strength, oil resistance, acid and alkali resistance, salt mist resistance and the like so as to cope with the severe environment of the drilling platform, and a temperature monitoring device is not required to be additionally installed, so that the installation, use and maintenance processes are simplified, and the operation efficiency and the safety are improved. The utility model discloses a low-temperature-resistant temperature-limiting drilling power cable for an oil platform, which comprises a conductor formed by twisting a main line core conductor and a ground wire core conductor, an insulating layer wrapped on the outer surfaces of the main line core conductor and the ground wire core conductor, and a functional layer wrapped outside the conductor. The surface of the stranded conductor of the metal copper wire is smooth, no burrs exist, the surface of the stranded conductor is slightly concave at the joint of the metal wires, and the whole appearance is round. The thickness range of the insulating layer is defined to be 0.8-3.0mm according to the specification of the cable. The thickness of the inner sheath is 1/3-1/2mm of the thickness of the outer sheath. The flexible tinned alloy wire braiding layer is divided into specifications of 0.15mm, 0.20mm, 0.25mm, 0.30mm and the like according to the outer diameter of the semi-finished cable during braiding. The thickness range of the outer sheath is 1.5-5.0mm according to different specifications of the cable. The utility model has the advantages and technical effects that the low-temperature-resistant temperature-limiting drilling power cable specially designed for the oil platform has the innovative structure which covers a conductor core formed by precisely twisting a main line core conductor and a grou