US 12,460,927 B2
Estimation device, estimation method, and non-transitory computer-readable recording medium for thickness of precipitate
Shumpei Ito, Tokyo (JP); Yoshiaki Tanaka, Tokyo (JP); Tatsuya Hazuku, Tokyo (JP); Motoaki Morita, Tokyo (JP); and Tomonori Ihara, Tokyo (JP)
Assigned to YOKOGAWA ELECTRIC CORPORATION, Tokyo (JP)
Filed by YOKOGAWA ELECTRIC CORPORATION, Tokyo (JP)
Filed on Oct. 5, 2022, as Appl. No. 17/960,274.
Claims priority of application No. 2021-164834 (JP), filed on Oct. 6, 2021.
Prior Publication US 2023/0104465 A1, Apr. 6, 2023
Int. Cl. G01B 21/08 (2006.01); G01B 13/06 (2006.01)
CPC G01B 21/085 (2013.01) [G01B 13/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An estimation device comprising a controller that:
acquires a first pipe surface temperature and a second pipe surface temperature, wherein the first pipe surface temperature is an outer surface temperature of a pipe at a precipitate generation position at which a precipitate is adhered to an inner surface of the pipe through which a fluid flows, and the second pipe surface temperature is the outer surface temperature of the pipe at a reference position different from the precipitate generation position,
calculates an in-pipe fluid temperature that is a temperature of the fluid at the precipitate generation position based on the second pipe surface temperature,
estimates a thickness of the precipitate based on the in-pipe fluid temperature and the first pipe surface temperature, and
in a case where the precipitate is adhered to the inner surface at the reference position, further estimates a difference between the thickness of the precipitate at the reference position and the thickness of the precipitate at the precipitate generation position.