The top two thermowells had been installed in the thermowell line for six months and three months respectively Thermowell failure is not uncommon Each was hard faced, and solid particle erosion completely opened their shanks.
Thermowells Design, Specification and Installation
Yet it is fundamental to the safety of the process
A faulty thermowell can jeopardize the whole operation
The main risk comes from vortices forming in the process medium around the thermowell,. The bottom line is to avoid safety issues that expose operators to the process with a failed thermowell Failed thermowell incidents discussed by delegates attending the refcomm 2016 refining conference. Thermowell installations at an angle other than vertical (refer to attachment 1) were unacceptable
These have been reinstalled in accordance with a detailed procedure requiring use of depth. Instrumentation engineers seeking to measure temperature by installing sensors and thermowells into flowing fluid streams must perform many critical evaluations.
