Refinery high temperature hot oil pump mechanical seal-

Mechanical seal of high temperature hot oil pump in oil refinery
　2017-01-13　　
The successful experience of mechanical seals for high temperature hot oil pumps in oil refineries with a service life of more than one cycle (take the reduced bottom pump as an example) include: improved mechanical seals, both dynamic and static rings are G6, no flushing; double end mechanical seals ; High temperature and low elasticity mechanical seal of container bellows; expanded graphite packing; non-washed filled PTFE bowl seal, etc. It can be seen that different sealing structures can be used to complete the seal in the same X condition, but it is worth pointing out that some experience may not be completely applicable to other units. The reason is the lack of basic theoretical data and reliable design cannot be guaranteed.　　235.html,

The main reason for the unstable operation of mechanical seals 　　 labyrinth-spiral mechanical seal