Views: 0 Author: Site Editor Publish Time: 2022-01-17 Origin: Site
Relatively speaking, the application field of special power cables is very extensive in electrical equipment. Fields that require electrification such as automobiles, coal mining equipment, ships, aircraft, etc. require the use of special power cables. Large-scale medical equipment requires special control cables, and new hybrid vehicles such as automobiles require thin-walled low-voltage control cables. Shearers need special power cables that are oil-resistant, high-temperature resistant, and impact-resistant. Many fields have begun to use special power cables to equip equipment.
Six application areas of special cables
Application field one: military market
Large-scale military enterprises, these units and enterprises are shouldering the task of scientific research and modernization of national high-tech equipment. Most of the wires and cables they need are fluorine-containing plastic products with high temperature resistance and light weight, and the number of special wires and cables required is also rapidly increasing. To expand, some special products still need to be imported. The survey results show that to equip a certain type of missile, only special wires and cables need 200km; to equip some electronic countermeasure vehicles, special shielded cables need to be up to 300km. According to the feedback of a wire and cable company and the collection of external sales information, the demand for military products that have business dealings with this company is as high as 45,000km. 11%.
Application field 2: civilian market
Mainly involved in petrochemical, metallurgical machinery, real estate construction, information communications, automobiles and ships and other industries. In terms of construction wires: in the 1990s, high-rise buildings abroad promoted the use of fluorine-containing plastic wires and cables. Its purpose is to use the characteristics of fluoroplastics such as high temperature resistance and non-flammability to prevent fire hazards. In recent years, many of the smart buildings emerging in China also use double-layer flame-retardant and high-temperature resistant (150°C and above) wire and cable and low-smoke halogen-free environmental protection wire and cable, the purpose is to prevent unsafe accidents. Due to the wide variety of construction lines and wide range of uses, the market capacity is huge.
Application field three: oil platform
According to the Shanghai Cable Engineering Design Institute, the demand for oil platform cables is directly related to the number of oil platform construction. The amount of cables used for each type of offshore oil platform is: 150 kilometers for jack-up platforms, 180 kilometers for semi-submersible platforms, 200 kilometers for oil production platforms, 200 kilometers for production platforms, and 100 kilometers for living platforms. According to this estimate, my country needs about 8,000 to 10,000 kilometers of cables of various types to build and maintain offshore oil platforms every year. It is expected to exceed 25,000 kilometers by 2020. As far as oil exploration projects are concerned, the annual demand for multi-functional cables such as deep well survey cables, deep well submersible pump cables, and heating automatic temperature control is about 15,000km, according to incomplete statistics. If you add oil exploration and drilling platforms in coastal areas, the demand is also immeasurable. The supply and demand gap of oil platform cables is large. At present, my country's oil platform cables have basically achieved localization, and the annual production capacity of domestic enterprises is about 8,000 to 10,000 kilometers. According to the current proportion of domestic production capacity and demand growth, it is expected that the gap between supply and demand will reach about 10,000 kilometers by 2020.
Application field four: submarine cable
With the increasing shortage of global oil and natural gas energy, the large-scale shift from land mining to the marine field, the scale of offshore oil and natural gas engineering projects continues to expand, and it is necessary to carry out electricity and communication from land to offshore oil platforms, and between platforms and platforms. The feedback and control of transmission and technical data make the demand for integrated submarine cables continue to grow. According to my country's oil development plan, my country's offshore oil development will usher in a period of rapid development. In the next five years, 120 billion yuan will be invested in offshore oil development. It is expected that between 2010 and 2020, the growth rate of oil platforms will remain at 8% to 10%. The number of oil platforms in my country was about 250 in 2008, and each existing oil platform needs about 10km of submarine integrated cables for maintenance every year. The amount of submarine integrated cables required for each new oil platform is about 40km. In addition to the need for a large number of submarine integrated cables to be used in oil platforms, the demand for submarine integrated cables in the development and utilization of islands in my country is also increasing. In addition, the demand for submarine integrated cables in Shanghai wind power generation projects is to comprehensively measure island development and offshore wind power generation. The annual demand for submarine integrated cables is about 300 kilometers. According to estimates, in 2019, the supply and demand gap of my country's submarine integrated cables will be about 3,000 kilometers.
Application field five: civil aviation
At present, the domestic civil aviation industry is booming. According to relevant information, the cable consumption of a Boeing aircraft is not less than 80km, of which the special wires and cables used for cabin wiring are not less than 30km, and most of the cables are small in size and heavy in weight. Light, high temperature radiation cross-linked or silane cross-linked wire and cable. With the development of national defense weapons and the vigorous development of civil aviation, the demand for special wires and cables has risen sharply. It is understood that an aircraft manufacturing company's export mission in 2003 required 6,000km of wires, and imported cables were also required due to quality and delivery time. So far, the air force, weapons, aviation repair and other industries have shown a strong demand momentum, and the demand for cables in the future cannot be ignored. As far as the cable industry is concerned, there are not many companies with a complete range of special cables and a certain scale that can produce special cables. The market prospect of special wires and cables is very broad. This is an excellent opportunity to develop special wires and cables.
Application field six: high temperature superconducting power transmission
As an important part of special cables, high-temperature cables have strong vitality and are in short supply. my country imports about 2 billion yuan from abroad every year for domestic construction. Due to the use of high-temperature superconducting materials with high transmission current density as conductors and liquid nitrogen as cooling medium, high-temperature superconducting cables have the advantages of small size, light weight, low loss, and no fire hazard. The transmission loss of conventional power cables is about It accounts for 7% of the transmission power, while the transmission loss of the high-temperature superconducting power cable only accounts for 0.5%. If the energy consumed by cooling is considered, the final energy saving is more than 60%; in the case of the same weight and size, it is comparable to conventional power cables. Compared with the high-temperature superconducting cable, the capacity of high-temperature superconducting cable can be increased by 3 to 5 times, the loss can be reduced by 60%, and the weight can be reduced by more than 80%. , power plants and substations. The cable industry has been in a state of vicious competition for a long time. The application of superconducting technology gives cable companies an opportunity to surpass their competitors. How its development will depend on the absorption capacity of the cable market.
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