The thermometer on the outlet pipeline of the Roots blower is likely to be damaged
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The unit is equipped with a Roots blower, and the thermometer on the outlet pipeline keeps breaking. Even after replacing it with a capillary-type thermometer, it still breaks. Is there any way to simulate this situation and find a solution? I’m seeking advice from experts.
You need to first determine the cause of the damage. Generally, stress analysis is not performed on instrument pipelines, as the pipes are too small.
What brand is it? The quality is terrible. Here, aside from those that are prone to damage due to high temperatures above 700 degrees, we haven’t encountered any major problems with the rest.
It is the main pipeline that experiences significant vibration; the thermometer is of the sleeve type and is installed on the main pipeline
The sleeve-type thermometer has too large a concentrated mass and an excessively long cantilever, which can lead to fatigue under vibration. The strength of the sleeve can be calculated in accordance with ASME PTC 19.3, or a thermometer with a smaller concentrated mass can be used, similar to those used in reciprocating compressors