| 摘要 |
The present invention provides a thermocouple rake that may readily be removed and reinstalled into a separate turbine. Further, a cantilevered thermocouple rake is provided, wherein the installed rake requires fixation at only one end. A thermocouple rake consistent with the invention also comprises a plurality of rigid guide and support tubes for strength and stiffness, and comprises a plurality of thermocouple junctions in each guide tube at different lengths along the tube, for taking readings at various distances from the turbine wall. The present invention further provides a thermocouple rake having tubing of various diameters to protect against vortex shedding. A plurality of spacers serve as damping during vibration allowing the rake (or at least a portion thereof) to survive vibration at its natural frequency. A stop and tapered bushing configuration effects better damping and longevity in high vibration environments, e.g., in gas turbines. Further, the tapered surfaces used in the stop mechanism allow easy disengagement during transient thermal growth, thereby minimizing thermal stress due to thermal expansion.
|
