Patent ID: 7465086

Claim:
A thermowell tube mounting assembly ( 110 ) for adjusting the position of a thermowell ( 14 ) to a desired depth ( 104 ) within the interior ( 100 ) of a process unit ( 90 ), said mounting assembly ( 110 ) comprising: a mounting flange ( 50 ) arranged and designed for coupling about an opening ( 92 ) in said process unit ( 90 ), said mounting flange ( 50 ) having an aperture ( 54 ) therethrough, wherein said process unit ( 90 ) is adapted to operate under pressure, and wherein said mounting flange ( 50 ) is adapted to provide a seal about said opening ( 92 ) for containing said pressure; an internal tube ( 60 ) coupled to an internal side ( 62 ) of said aperture ( 54 ) which provides an inner passage ( 56 ) between said aperture ( 54 ) and said internal tube ( 60 ); female threads ( 68 ) within said internal tube ( 60 ); a thermowell tube ( 14 ) having an external surface with male threads ( 24 ) positioned thereon to engage said female threads ( 68 ) of said internal tube ( 60 ), said thermowell tube ( 14 ) having a bore creating an inlet, said bore arranged and designed to accept a thermocouple assembly ( 12 ) therein, wherein said male threads ( 24 ) and said female threads ( 68 ) are adapted such that rotation of said thermowell tube ( 14 ) within said internal tube ( 60 ) adjusts the position of said thermowell tube 14 to said desired depth ( 104 ) within the interior ( 100 ) of said process unit ( 90 ); and a fastening mechanism ( 30 , 40 ) which secures said thermowell tube ( 14 ) to said mounting flange ( 50 ), said fastening mechanism ( 30 , 40 ) arranged and designed to prevent rotational or longitudinal movement of said thermowell tube ( 14 ) after said thermowell tube ( 14 ) is threaded through said female threads ( 68 ) of said internal tube ( 60 ) to a desired position within the interior ( 100 ) of said process unit ( 90 ), wherein said fastening mechanism ( 30 , 40 ) is adapted to seal said thermowell tube ( 14 ) to said mounting flange ( 50 ) for containing said pressure in said process unit ( 90 ).