Air separation unit lower column expander

The principle of the expander in the lower column of the air separation unit is that when the high-pressure gas passes through the expander, it pushes the expander impeller to do external work, thus reducing the internal energy of the gas itself and reducing the temperature. Its function is to provide cooling capacity for the unit to supplement the problems such as insufficient reheating loss, unit cooling loss and liquefied product cooling capacity.

Video of Air separation unit lower column expander

DEAR's intelligent production line in the domestic industry

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Faq of Air separation unit lower column expander

No pressure in the cylinder before the air compressor of air separation unit starts

From the starting characteristics of the motor driving the air compressor, it can be seen that the current of the motor starting is several times larger than that of normal operation. The strong starting current has a great influence on the motor itself, transformer and transmission line. In order to reduce the starting time and starting current, no-load is a more effective measure. Based on this requirement of motor starting, before starting the air compressor, the pressure of all levels of pressure gauges should be checked. If there is air, the air should be released.

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空气分离装置中筛托盘柱溢出桶的原理是什么？效果是什么？

What is the principle of overflow bucket of sieve tray column in air separation plant? What's the effect?

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