The application of bearing in the field of petroleum and chemical

Petrochemical field, high speed, low consumption, long life of the compressor, fan, such as clear the requirement of dynamic bearing of typical petrochemical equipment, in press, in order to improve the rate of unit, between the rotor and the cell body is very small, so the requirement to ensure that the rotor bearing meet the requirements of the high speed, high precision operation, in the face of the fan, due to long time running, on bearing is proposed for the requirement of long life, easy maintenance, the scope of the diameter of the mouth before the equipment of the sliding bearing is 8 3 oomm, speed of 0 - 1. 50000 r/min, have foreign Waukesha, Kingsbury company basic domestic high speed bearing market, west to east gas pipeline project as an example: a line engineering, compressor all adopt imported motor, Siemens bearing all the German RENK supply second line project has 80 booster station, each station has four electric compressor, check each motor equipped with a high-speed bearing, a total of 320 sets of import price of 3. 5 million yuan per set, bearing the total price in 11. 200 million yuan so the research for the localization of the sliding bearing both strategically and economically in urgent. Production of bearing and sliding bearing industry in China industry is located in the world, water and electricity, metallurgy, and other fields of the sliding bearing has reached the world advanced level. However, late start, weak foundation, scattered forces and the shortage of basic research and product development in please reason seriously restricted the our country to the pace of sliding bearing power. Sliding bearing industry in China in general is still relatively backward industrial structure, enterprise more and not strong, mid-range products, the situation of lack of core competence. Especially in the high-end product market, and always at a disadvantage, have a great gap with the international advanced level, some relations in the field of national economy and people's livelihood and national security key bearing still rely on imports. Customs data showed: 1-2010 In November the sliding bearing out of the mouth up to 3. 0. 9 billion dollars, but imports up to 3. 2. 5 billion dollars. Compared with foreign advanced technology, our country under the condition of many more medium and high-end sliding bearing dynamic service behavior, lubrication mechanism, precision and system dynamics, the material of modified into a type, environmental effect analysis and test technology has a big gap between basic research aspects. To sum up, the extreme conditions and special conditions of large size, high pressure, low energy consumption, no pollution, low noise, high reliability and long life, super lubrication, high precision, high rigidity, intelligent high-end sliding bearing design and manufacture of innovation theory, methods and techniques, is China's high-end sliding bearing is an urgent need to solve the common and key problems of science and technology. Energy and motion is passed through the mechanical parts of the interface between the. Mechanical equipment and parts of macro performance ( Carrying capacity, efficiency, power consumption and the working life, in all sorts of special and extreme conditions adaptability and reliability, etc. ) And interface of the mechanical, physical and chemical form directly, while the latter is typically microns or complex phenomena at the nanoscale. Traditional contact mechanics does not consider possible kinds of embellish smooth, traditional lubrication mechanics does not consider possible contact interface, they are not complete and accurate to describe the actual condition of jiehua through in the engineering. Around China's high-end research and development of sliding bearing, therefore, need to use the thought of system engineering, a comprehensive integrated use of boundary surface mechanics, tribology and surface engineering, system dynamics, materials science, advanced manufacturing, reliability engineering, testing technology and so on many disciplines/fusion and collaborative innovation design theory, method and technology, the key breakthrough in high-end sliding bearing under common and key section ( 1) Special environment and the extreme working condition of sliding bearing dynamic key scientific problems of service behavior; Technical problems: ( 2) Under the condition of multi field coupling high-end sliding bearing comprehensive performance test technology and the database construction ( 3) High-end sliding bearing multidisciplinary cross and fusion and collaborative innovation theory and method of design and manufacturing ( 4) The national standards for high-end sliding bearing series products, evaluation system and industrialization of key technologies