The differential pressure between the two carbon dioxide compressors with four outlets is high
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The carbon dioxide stripping process uses a reciprocating compressor, with five stages of compression, three stages of desulfurization, and five stages of dehydrogenation. Under the same load, the four-way outlet pressure of Unit 1 is currently 0.3 MPa higher than that of Unit 2; however, after disconnecting Unit 1’s desulfurization system, the pressure difference drops to 0.02 MPa. I would appreciate some guidance from an expert.
Let’s see what the experts say; I’ll learn* it too
Now the cause of the problem has been identified: the stop gap at stages 4 and 5 of unit 2 was adjusted during maintenance work； This results in an enhanced suction capacity in stage 4 of unit 2; under desulfurization conditions, unit 2 draws in a large amount of gas, which leads to a higher pressure at the outlet of stage 4 ； If desulfurization is separated out, the clearance between the cylinders in one section will be the same, the air intake volume in the four sections will be equal, and the pressure difference will also disappear.