Background:
Wheelspace It is the space (very small axial distance) between rotating wheel that is turbine buckets and the stationary diaphragms which the turbine nozzles are installed on). Wheel space T/Cs are used to measure temperature around wheel space region of gas turbine.
The Problem:
Current wheelspace thermocouples when installed could not fit the 7/32” hole in the diaphragm blocks. Upon removal of existing wheelspace thermocouple located at location T-TWS2AO-4 customer was able to identify OEM Temp-Pro and called for assistance. It is important the lengths are correct and that the transition from the thermocouple sheath and leads is no more than 5/32” in diameter so the thermocouples can be fished through a 7/32” hole in the diaphragm blocks.
Solution:
Temp-Pro review construction and manufacturing records to verify the lengths are correct and that the transition from the thermocouple sheath and leads was no more than 5/32” in diameter so the thermocouples can be fished through a 7/32” hole in the diaphragm blocks. Temp-pro confirmed dimensions and was able to manufacture and supply replacement wheelspace thermocouples for all locations within MS-7001B Gas Turbine.
Results:
The customer was extremely pleased with Temp-Pro wheelspace thermocouples and installation was a success during scheduled outage
