Air separation unit is an important section in an Integrated Gasification Combined Cycle(IGCC) generation system.

The paper describes the application of coal gasification,coal liquefaction and coal in the combination cycling power generation,as well as the process flow of this type air separation plant.

Transformation of 6000 Nm~3/h air separation plant for capacity enlargement is described in detail on scheme establishment,transformation content,the problems encountered in installation and commissioning,etc.

In the light of the plant management target of the enterprise and features of air separation plant, and through practice, the guiding thought and measures of the air separation plant management are put forward, so as to reduce maintenance costs, increasemaintenance quality and assure safety and efficient operation of the plant.

The service of rubber lining for anticorrosion in production of WPA is introduced, including some key points in design of rubber lining for vacuum equipment, the characteristics of homemade/joint venture/foreign enterprises liner plates and their selection, as well as notices in use.

The design calculation of the large O ring rubber self energized seal (without bolt and nut )used for the vacuum equipment and its application results are introduced.

This paper introduces application of PP vacuum equipment ,the design and calculation of the vacuum equipment are emphasized .

The reliability and quality of power supply equipment and efficiency of air-condition equipment have great effect on whether the Telecommunication system is blocked or not, as well as the quality of Telecommunication.