Pressurised steel rotor storage containers provide effective protection during both shipping and storage. They can be stowed vertically, which helps prevent the rotor bowing that can occur during long-term horizontal storage and affect rotor balance. That makes them a practical solution for operators managing valuable rotating equipment spares.
Even within a sealed structure, spare rotors remain vulnerable to contamination from air, dust and humidity. Over time, moisture and oxygen can lead to corrosion, while traditional heavy preservatives can be difficult and time-consuming to remove before the component is returned to service.
For that reason, a nitrogen purge system is often the preferred preservation method. It replaces atmospheric air in the sealed container with commercially pure nitrogen, helping protect steel rotor parts without the need for extensive surface coating removal before operation.
Damage-risk list
Without environmental control, stored components can be vulnerable to damage affecting:
A recent George Green project involved manufacturing a rotor storage container designed for 1.0 bar pressure and a 2,200kg load. The unit included a nitrogen bottle attached to the frame for pressure maintenance and regulation, together with a safety relief valve.
Internally, the pressurised container featured rubber-faced mounts designed to secure the stored component in all directions.
To discuss pressurised rotor storage containers or a specialist storage requirement for critical spares, get in touch with George Green.
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