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Problems with low-temperature methanol wash cooling pumps

2018-01-28View Original

Thread Content

During pre-cooling, the pump shaft of the low-temperature methanol wash cooling pump freezes over, which prevents the pump from rotating properly and affects its readiness for use. Do any of you have any good solutions to this problem?
Reply #22018-01-28
Which place is frozen? Is the mechanical seal flushing scheme PLAN11+52+62? If so, is the nitrogen used for heating kept flowing continuously? The medium is inside the pump, so it won’t freeze. Outside the seal is the bearing housing, and inside it is lubricating oil.
Reply #32018-02-03
Freezing occurs at the pump head and the pump bearings; in severe cases, the machine cannot be rotated.
Reply #42018-02-03
What sealing and flushing scheme is used for the pump?
Reply #52018-02-04
“Ice forms at the pump head and at the bearings of the pump; in severe cases, this can prevent the pump from rotating... The freezing point of the lubricating oil in the bearing housing is very low, and if ice forms inside the bearing housing, then water has entered the bearing housing of your pump~~~~~~~~~

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