FAQ

The relative values of low temperature effective energy and pressure effective energy are variable and the application of liquid air separation plant cold energy is based on the specific use of liquid air separation plant, combined with specific processes to effectively recover liquid air separation plant. In fact the essence of liquid air separation plant cold energy utilisation is the transfer of liquid air separation plant cold to the mass to be cooled to achieve the ...

Air separation unit is a kind of unit that takes air as raw material, transforms air into liquid by low temperature cryogenic method which compresses and circulates air, and then gradually separates oxygen, nitrogen, argon and other inert gases from liquid air by distillation. At present, the air separation unit produced in China has many forms and types. There are unit for the production of gaseous oxygen and nitrogen, as well as unit for the production of liquid oxygen and nitrogen. However, there are four types of basic processes: high pressure, medium pressure and low pressure, and full low pressure process. The production scale of air separation unit in China has developed from the original oxygen generator which can only produce 20m³/ h (oxygen) to the current large-scale air production capacity of 20000 m³/ h, 30000 m³/ h and 50000 m³/ h (oxygen). The air separation unit can be divided into 5 basic systems in terms of process 1. Impurity purification system: the mechani

What are the causes for abnormal pressure at the boosting end of air separation expander?

Boiling point of oxygen nitrogen mixture in air separation equipment

What is the working principle of air cooling tower and water cooling tower of air separation equipment?

The air separation column mainly includes main heat exchanger, liquefier, distillation column, condensing evaporator, etc. The main heat exchanger, condensing evaporator and liquefier are plate type of heat exchangers. It is a new type of all aluminum metal composite partition heat exchanger. The average temperature difference is small, and the heat exchange efficiency is as high as 98-99%. Distillation column is the unit of air separation. The types of column unit are classified according to the internal parts. The sieve plate column with sieve plate, the bubble cap column with bubble cap plate, and the packed column with packing material. The sieve plate is widely used in air separation distillation column because of its simple structure, easy manufacture and high efficiency. Packed column is mainly used for distillation column with diameter less than 0.8m and height less than 7m. Bubble column is seldom used because of its complicated structure and difficult manufacture. Turbine

What precautions shall be taken for the regulation of excess oxygen in the air separation unit?

Before installing pipe , check the orientation of the container orifice, the orientation of the valve inlet and outlet is correct. The pipe fittings should be thoroughly cleaned ten net and strictly degreased, while opening the welding bevels etc. The welded pipe must be brushed with clean stainless steel wire for a very short time before welding. In order to reduce the cold box pipe welding mouth, can be prefabricated in a clean plant, and later for the final distribution. Piping principles, f...