Small air separation FAQ

The content of oxygen in liquid and liquid in the air separation plant is high, which will cause the increase of oxygen concentration in local range after evaporating in the air. If there is fire, there is a danger of burning and explosion. A fertilizer plant once had an explosion accident that hurt people because a large amount of liquid oxygen was discharged into the trench, and it also encountered electric welding sparks. Therefore, it is strictly prohibited to discharge the liquid into the trench at will, and it should be discharged into the liquid steam tank or the special low temperature resistant metal discharge pit through the pipeline. The discharge pits should be kept clean regularly, and organic matters or oil deposits are strictly prohibited. When discharging liquid, fire is forbidden around. Low temperature liquid contacting with skin will cause severe frostbite. If it is light, the skin will form blisters, red and swollen, which will cause pain; if it is severe, it wil...

Reasons for the decrease in moisture content of air after passing through the cooling tower of an air separation plant

What factors are related to the magnitude of cooling loss in air separation equipment

Water cooling tower is a hybrid heat exchanger. The relatively high temperature cooling water (about 35℃) from the air cooling tower flows down from the top spray, and the relatively low temperature sewage nitrogen (about 27℃-27℃) from the switching heat exchanger) the bottom-up flow, the direct contact between the two, not only heat transfer but also mass transfer, is a relatively complex heat transfer process. On the one hand, because the temperature of water is higher than that of sewage nitrogen, there is heat which is directly transmitted from water to sewage nitrogen to cool it down; on the other hand, due to the relatively dry sewage nitrogen, the relative humidity is only about 30%, therefore, the molecules of water can continuously evaporate and spread into the dirt and nitrogen. However, the evaporation of water needs to absorb the latent heat of vaporization. Taking away the heat from the water makes the temperature of the water lower continuously. This phenomenon is like...

What inspections and records should air separation equipment gas companies conduct when receiving gas cylinders sent by users

Structural characteristics of oxygen compressor of air separation plant

Why does the temperature difference at the hot end of an air separation unit cause cold loss

Avoid cavitation of centrifugal pump of air separation equipment

What proportion of the total refrigerating capacity of the expander in the low-pressure air separation unit

Maintenance methods of air compressor of air separation plant: I. Regular maintenance and maintenance of main components: in order to make the air compressor operate normally and reliably. Maintenance method of air compressor: I. Regular maintenance and maintenance of the main components: in order to make the air compressor run normally and reliably and guarantee the service life of the unit, a detailed maintenance plan must be formulated, carry out personnel operation, regular maintenance and regular inspection and maintenance to keep the air compressor unit clean, oil-free and dirt-free. The maintenance of main components shall be conducted according to the following table: (note ): A. it must be confirmed when repairing and changing parts according to the above table: the pressure in the air compressor system has been released, separated from other pressure sources, and the switch on the main circuit has been cut off, and the safety sign of not closing has been made. B. The rep...

Shaft seal of expander of small air separation plant

What is the effect of insufficient processing air on distillation conditions