The leakage of the outer floating ring caused the sealing oil to break into the bearing box. In October 2004, the isomerized circulating hydrogen compressor was oiled by the bearing box of the driving end. The bearing box was filled with the oil sight glass and the oil return was large. The breathing valve of the non-drive end bearing housing does not appear to be oily, the interface of the bearing tank returning oil mirror is clear, and the oil returning is normal. Immediately carry out on-site inspection to confirm that the nitrogen seal pressure of the large fuel tank is 005 MPa. It can be concluded that the oil phenomenon of the breathing valve is not caused by the poor oil return due to the high pressure of the large fuel tank. From the analysis of the floating ring seal structure, if the outer ring of the floating ring seal becomes larger, the external oil return increases, causing the leak outside the seal to be filled back into the oil chamber, and the seal oil will break into the bearing case lubricating oil. According to the analysis, it can be concluded that the gap of the outer floating ring is large, which is the reason why the sealing oil is sucked into the bearing box, which causes the oil returning amount of the lubricating oil to increase the oil of the breathing valve. At the inspection site, it was found that the oil consumption was relatively small and the compressor bearing temperature was normal. Therefore, the author provided a storage space between the bearing housing and the breathing valve to provide a storage space to prevent leakage of lubricating oil. Through this measure, the problem of oiling is effectively solved, and the floating ring seal is replaced only when the compressor is running until the overhaul. Of course, if the outer floating ring gap is too large, the leakage is too large, and when the unit is threatened by normal operation, it must be shut down for maintenance. Sealing gas reference gas system failure and solution oil loss comparison began in February 2005, the compressor oil tank in the operation of the large oil tank oil level drop amount and the venting system condensate collection tank cut out the loss of oil does not match For details, see 3 comparisons. At the same time, it was found that the axial displacement parameters of the compressor also showed a gradual upward trend, and the specific trends were compared. In addition, it was found that the pressure drop of the system isomerization reactor also showed an upward trend, and the specific trend was compared. Conclusion According to the structural characteristics of the isolating cycle hydrogen centrifugal compressor floating ring seal, in order to make the sealing system safe and efficient operation, the relationship between the sealing oil, the sealing gas and the reference gas must be handled; from the sealing oil and the sealing air pressure difference, sealing The details of gas quality, installation and maintenance quality, etc., can ensure the safe, stable, long, full and excellent operation of the unit through long-term practice test. Capacitor Parts Forming Machine
SF-501C has High production efficiency, 15-20 tubes can be placed in one time,which is 2-3times that of manual work.
SF-501B Apply to mass production, excellent device for feet cutter moulding.
SF-501A Customized vibrating plate automatic feeding and cutting feet, suitable for bulk electrolytic capacitors, leds.
SF-501 The Resistor bulk Forming Machine apply to mass production,the best assistant equipment for short feet operation.Apply range:A<10mm and B<16mm electrolytic capacitor.
SF-511 The motor can be variable speed without noise.Manual belt type unilateral capacitor, resistor, crystal, electronic parts Cutting Machine.
SF-512 It is suitable for roll or box packed material.side-band radial lead cutting machine. taped automatic capacitor cutting machine is a small size.Cutting accurately.Suitable for long and short foot processing.
Capacitor Shearing Machine,LED Capacitor Resistor Component,Capacitor Bending Forming Machine,Bulk Capacitor Shearing Machine SINGSUN ELECTRONIC SCIENCE & TECH CO.,LTD , https://www.szsingsunautomatic.com