Laser Tracker Turbine Shell Distortion

Laser Tracker Turbine

Shell Distortion Study

The Project Scope

PCS Nitrogen was in the process of completing an outage on a Siemens steam turbine. When the top was placed back on the turbine the two horizontal joints would not mate up properly. PCS Nitrogen needed to determine which turbine half was distorted and what was the exact amount of distortion. The distortion amounts needed to be fed into a CAD program so that the joint could be machined exactly to fit together correctly.

how was acquip involved

ACQUIP was able to quickly mobilize to the job site with a FARO Laser Tracker. We were able to quickly take over 3,000 measurement points on both the upper and lower half of the horizontal joint. The maximum measured shell deflection matched exactly what the plant recorded from the feeler gauge readings. The CAD files were created and fed into a filed machining system to correct the horizontal joint surface.

Laser Tracker Turbine Shell Distortion

results of the project

ACQUIP Alignment Engineers determined the deflection accurately and quickly using the FARO Laser Tracker. PCS nitrogen was then able to use the data to quickly fix the issue with the steam turbine and return it to service.

For more information about our steam turbine alignment services contact us +1 305 538 7101 or email us at

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