Patent ID: 6352361
Filing Date: 2002-03-05
Classification: G01K

Abstract:
For use with a gas pipeline having gas flowing through the pipeline, a thermowell assembly for mounting within an opening in the pipeline to sense the temperature of the flowing gas and transmitting a temperature sensing signal to a flow measuring instrument for calculating the volume of gas flow along the pipeline, said thermowell assembly comprising:an upper metallic housing for mounting within said opening in said pipeline and forming a metallic structural connection with the pipeline; a closed end metallic tube for extending within said pipeline and forming a thermowell for receiving a temperature sensing element; a plurality of annular metallic fins about said metallic tube for thermal transfer from the gas in the pipeline to said temperature sensing element; and an intermediate metallic tubular member extending between and connecting said upper metallic housing to said metallic tube, said upper metallic housing having an external diameter at least about twice an external diameter of said intermediate metallic tubular member.