Air separation equipment maintenance

The upsizing of air separation plant has became an inevitable trend of the development of national economy. A few years ago, the domestic air separation industry had achieved the air separation performance of 100000 m³/h level, and there were more than 150000 m³/h air separation plant abroad. With the gradual increase of the scale of air separation plant, its energy consumption is also increasing. In order to save energy, reduce consumption and reduce pollution, it is of great significance to study the driving mode of compressor for large-scale air separation plants. 1. Turbine drive: Steam turbine is widely used in electric power, chemical industry, metallurgy and other industries and fields because of its axisymmetric high-speed rotation characteristics, smooth operation, small wear and long continuous operation time. However, the one-time investment of steam turbine drive is relatively large, and the requirements for heat supply pipeline and production system are high. The pla

Thermodynamic energy is the sum of kinetic energy of irregular motion of molecules in matter and potential energy generated by mutual attraction between molecules. In the process of oxygen production, there are many flow processes, such as compression, expansion, heating and cooling. These processes not only involve the change of thermodynamic energy, but also involve the transformation between the flow energy and the thermodynamic energy. Enthalpy is the sum of material thermodynamic energy and material flow, so it is more convenient to study these flow processes with enthalpy.