Operation mode of the backup pump in the air separation backup system
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The backup pump for the air separation backup system is intended to operate in a cold standby mode (with the pump not running but connected to a low-temperature liquid) or in a low-speed idle mode. I would like to ask the forum members: what are the advantages and disadvantages of these two methods?
Our liquid oxygen pumps operate at low speed in an idle mode and are equipped with interlocking backup systems; this ensures that if the main pump fails, the backup pump will start automatically.
Is yours a process pump or a backup pump for the backup system?
The pump does not operate; it only allows liquid to flow through. The shaft can freeze up, so it probably won’t work. It’s better to use a low rotation speed, as this makes it easier to detect when the shaft freezes~~