Statistics on dynamic sealing points in petrochemical plants.
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Dear experts, may I ask how to count the dynamic sealing points in petrochemical plants? For centrifugal pumps, does a mechanical seal count as one such point? Should the bearing cover be counted as one? How to calculate a shielded pump? How is a reciprocating compressor calculated then? Centrifugal compressors and axial flow fans? Are there any relevant standards? Thank you
Generally, mechanical seals are evaluated based on 5 leakage points
Five? Is the sealing surface considered a moving part? The static ring gland, the back of the dynamic ring, the back of the static ring, and the space between the shaft sleeve and the shaft – are these four the static parts?
For the static sealing points of the equipment, pumps are special types of devices; here we treat the pump as a single unit, counting it as just 1, with the sealing points considered at the inlet and outlet flanges. Import and export flanges are counted as 2 static sealing points; this is specified in the VOC testing guidelines
Calculation principle for dynamic sealing points: The sealing between a pair of mating components that move continuously (rotating or reciprocating) is counted as one sealing point
It’s complete nonsense as a job – the so-called leak-free factory
Friend, could you share the VOC instructions?
Equipment operation is a practical task, but there’s also a lot of nonsense involved
Yes, these are all ideas stemming from silly office thinking – have him count the dynamic and static sealing points of a device on-site; there will be no errors