In the operation process of the reciprocating new hydrogen compressor hydrocracking device, the new hydrogen is frequently replenished by a compressor. The compression of the new hydrogen compressor is relatively large, and most of them use a reciprocating compressor. In the design of hydrocracking unit, there are three schemes for reciprocating new hydrogen compressors: one is not ready for two, and the compressor flow is 60% of the new hydrogen required by the device. When the compressor fails, the device can still continue to produce at 60% of the processing capacity during the maintenance and repair; the second is to open the two devices, and the compressor flow rate is S0% of the new hydrogen required by the device. Two operations, one standby A total of three; three is one open and one standby, the compressor flow is equal to the new hydrogen required by the device, one operation, one standby and two standby. The third scheme is mostly used in small hydrotreating units. According to the test, it can be seen that all the electromagnetic reversing valves have different degrees of air leakage during operation. In order to distinguish between the leakage of the electromagnetic reversing valve itself or the leakage of the cylinder driven by the electromagnetic reversing valve, we put the reversing valve to the cylinder. The gas pipe bend between them does not allow it to ventilate.
The reciprocating new hydrogen compressor is characterized in that the fuselage is made up of two two-row fuselage, and the crosshead slide is integral with the crankcase, and has a compact structure and good rigidity. The connecting rod forging blank is plate-shaped, flame-cut and formed, and the cross section of the fuselage is rectangular and has high strength. The crosshead is an adjustable slide structure that is hydraulically fastened to the piston rod. Easy to install and reliable connection. The secondary piston ring and the piston support rings of each stage are filled with polytetrafluoroethylene (PTFE) material, which has a long service life and can meet the requirements of long-term safe operation of the compressor. The medium and indirect cylinder adopts a double-chamber nitrogen-filling structure, and the hydrogen leaked from the packing can be taken out of the machine at any time to ensure production safety.
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