Petrochemical Industry

Drilling equipment used in petroleum industry are mud pump, winch, top drive, crane and so on.

Working conditions: large load, silt, strong corrosion, large impact vibration. Deep groove ball bearings, self-aligning roller bearings, cylindrical roller bearings, tapered roller bearings and thrust cylindrical roller bearings can be used to increase the bearing capacity and improve the corrosion resistance and impact resistance of bearings.

In the field of petrochemical industry, high speed, low consumption and long life are the requirements of cleaning bearings of compressors, fans and other typical petrochemical equipment. In the press, in order to improve the unit number rate, the rotor and the cell body are small, so the bearing is required to ensure that the rotor meets the requirements of high speed and high precision operation. Facing the fan, due to the need for long time continuous operation, The diameter of the bearing is 83oomm and the speed is 0-15,000 r/min. Waukesha, Kingsbury, a foreign company, has recently closed the domestic high-speed bearing market. The west-east gas transmission project is an example. There are 80 booster stations in the second-line project, each station has 4 electric compressors, and each motor is equipped with 1 high-speed bearing. A total of 320 sets are needed. The import unit price of each set is 3.5 million yuan. The total price of bearings is 1.12 billion yuan. Therefore, the research on domestic high-speed sliding bearings is urgent both in strategy and economy.

Bearing output and industrial scale of Chinese sliding bearing industry are already in the front ranks of the world, hydropower, gold and other fields of sliding bearing has reached the advanced level in the world. However, the late start, weak foundation, scattered strength, insufficient investment in basic research and product development seriously restricts our progress towards a great power of sliding bearing. Chinese sliding bearing industry is still in a situation of relatively backward industrial structure on the whole, with many enterprises but not strong, mainly low-end products and insufficient core competitiveness. Especially in the G-end product market, it is always at a disadvantage, and there is a big gap with the advanced level of foreign countries. Many key bearings in important fields related to the national economy and people's livelihood and national security still rely on imports. Customs data show that: from January to November 2010, China's export of sliding bearings was up to 309 million dollars, but the import amount was up to 325 million dollars. Compared with advanced foreign technology, there is a great gap in the basic research on dynamic service behavior of G end bearing under many fields and many media conditions, lubrication mechanism, system dynamics, materials modification and precision forming, analysis of environmental effect, test technique and so on.

To sum up, the innovative design and manufacturing theories, methods and technologies of large size, high specific pressure, low energy consumption, no pollution, low noise, high reliability and long life, super lubrication, high accuracy, high stiffness and intelligence of G end sliding bearing under J-end conditions and special environment are the commonness and key scientific and technological problems urgently needed to be solved in our G end sliding bearing. Energy and motion are transferred through the interface between the parts of the machine. The macroscopic working performance of mechanical equipment and components (bearing capacity, efficiency, energy consumption and working life, adaptability and safety reliability under various special and J-terminal conditions, etc.) is directly related to the mechanical, physical and chemical morphology of the interface, which is generally a complex phenomenon at the micron or nano scale. Traditional contact mechanics does not consider the possible types of lubrication, the traditional lubrication mechanics does not consider the possible interface contact, they are not a complete and accurate description of the actual situation of the boundary painting in engineering. Therefore, to develop G end bearing, it is necessary to use the idea of systems engineering to comprehensively apply interface mechanics, tribology, surface engineering, system dynamics, materials science, advanced manufacturing, reliability engineering, testing technology and other multidisciplinary integration and collaborative innovation design theory, methods and technology, to break through the following commonalities and key scientific and technological problems of G end bearing.