Optimization and Practical Analysis of Air Separation Unit
In order to further improve the energy-saving and consumption reducing effect of air separation equipment,a energy-saving and consumption reducing scheme for air separation equipment was designed taking a chemical plant's air separation equipment as an example.Firstly,the basic situation of an air separation unit in a chemical plant was briefly introduced.Based on this,the variable load mode of the air separation unit was designed in detail according to the peak valley time of use(TOU)principle.Finally,the application effect of the TOU variable load mode was tested from the perspective of±500 m3/h.Through actual testing,it is known that the application of this mode can increase the total flow rate of liquid oxygen by about 3.37％,reduce the total flow rate of liquid nitrogen by about 2.51％,and reduce the total flow rate of liquid argon by about 0.97％.In addition,the total energy consumption cost of the air compressor has been reduced by about 2.27％,basically achieving the goal of energy conservation and consumption reduction.Therefore,this scheme can be promoted to the control and regulation of air separation devices in chemical plants.
air separation deviceenergy conservation and consumption reductionpeak valley time of use electricity pricevariable load
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