Let’s discuss the use of reciprocating compressors as cycle hydrogen compressors
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This post was last edited by Yituo on 2011-8-7 at 12:53. In the hydroprocessing unit, the rated flow rate of the recycled hydrogen is 55,000 Nm3/h; the absolute pressures of the inlet and outlet gases are 1.5 MPa and 2.5 MPa respectively, with an average molecular weight of 2.736. For such operating conditions, either a reciprocating compressor or a centrifugal compressor can be used, but from a practical standpoint, the centrifugal compressor is undoubtedly more reliable. Reciprocating compressors have a high failure rate; are they suitable for use as cycle hydrogen compressors? Can those who have experience using it share their insights?
The flow rate is too high; reciprocating compressors are unlikely to be suitable for this.
A reciprocating compressor can be used, and that is what we have adopted – a reciprocating compressor of the 4M40 model, with a total circulating hydrogen flow rate of 72,000 Nm3/h. Shenyu’s.
2.5Mpa. Can a centrifuge achieve this pressure? ?
How many years has it been in use? Could you tell me how it’s performing? How does its reliability compare to that of centrifuges!
Under the conditions you provided, the compressor’s suction flow rate is approximately 3667 m3/h or 61 m3/min. Compression ratio 1.56. Piston compressors can be used, as well as centrifugal compressors. Two reciprocating compressors are required, one in operation and one as a backup. A centrifugal compressor, using just one unit, offers high reliability.
The reliability of centrifuges is certainly very high, but as cyclic hydrogen compressors, especially ones of such large capacity, do reciprocating compressors not pose many problems during operation? As the unit operates for longer periods and its failure rate increases, could this lead to passivity in handling problems?
Reply to 5# Yitu: I’m not sure what the volume of oil-containing wastewater is generated during your oil refining process We manufacture integrated treatment equipment for oily wastewater, and we are suppliers to companies such as Lu’an, Yitai, and China Nuclear Power. If you choose a reciprocating compression molding machine, I can help you develop a plan for the treatment of condensate and oily wastewater.
It is recommended that the poster avoid using reciprocating compressors as cycle hydrogen compressors; the reason is simple: reciprocating compressors are prone to various faults such as low lubricating oil pressure, overheating of the cylinders, knocking noises inside the compressor, excessively high primary exhaust pressure, excessively low primary exhaust pressure, and excessively high primary exhaust temperature. Although using centrifugal compressors is more expensive, they offer very high stability and a lower failure rate.