Rotation Solutions Forum

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- May 21, 2019 at 7:49 am
- in reply to: Misalignment in Pump ongoing
Tech Support @ Rotation Solutions
Keymaster

The pump operates at 220°C in steady state. We have never accounted for thermal growth. What is the best process to do such a thing?
- May 21, 2019 at 7:48 am
- in reply to: Misalignment in Pump ongoing
Tech Support @ Rotation Solutions
Keymaster

You are aligning to Coupling OEM tolerances? That is your first problem. These give the maximum and are no where near precision alignment. Alignment should be conducted to industry best practice and comply fully with API 686 – Machinery Installation.

Thermal growth is common on machines that operate at high temperatures. In my history, a difference in temperature between the driver and driven operating temperatures of 30°C requires the thermal growth target to be input. What does you hot oil pump operate at? 150-180°C?
- May 21, 2019 at 7:45 am
- in reply to: Misalignment in Pump ongoing
Tech Support @ Rotation Solutions
Keymaster
Thermal growth? We are aligning to recommended tolerances from the OEM for the coupling.

This reply was modified 3 years, 2 months ago by Tech Support @ Rotation Solutions.

This reply was modified 3 years, 1 month ago by Tech Support @ Rotation Solutions.
- May 21, 2019 at 7:44 am
- in reply to: Misalignment in Pump ongoing
Tech Support @ Rotation Solutions
Keymaster

Hot oil! Have you accounted for thermal growth?
- May 21, 2019 at 7:36 am
- in reply to: Shutdown troubleshooting
Tech Support @ Rotation Solutions
Keymaster
Ah! the training and competency issue. Same issue at our plant. Only a few of our operators know the machinery, and its a basic knowledge at that! We have tried training courses, but given the roster, techs are never onsite long enough to see all scenarios we encounter, and by then we have already lost production by machine downtime. Global fix anyone??

This reply was modified 3 years, 1 month ago by Tech Support @ Rotation Solutions.

This reply was modified 3 years, 1 month ago by Tech Support @ Rotation Solutions.

Viewing 5 replies - 1 through 5 (of 5 total)

Tech Support @ Rotation Solutions

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