Title:
APPARATUS AND METHOD FOR EQUIPMENT MONITORING AND PROGRAM
Document Type and Number:
Japanese Patent JP2019126834
Kind Code:
A
Abstract:
To provide an apparatus for equipment monitoring adapted to correctly monitor in real time the state of a refractory configuring an inner peripheral surface of equipment in which a molten metal is present.SOLUTION: An apparatus for equipment monitoring 200 derives an around-a-furnace-core furnace-bottom outer wall surface-sided heat flux q(t) and a furnace-bottom outer wall surface temperature T(t) by solving a one-dimensional nonstationary heat-transmission inverse problem on the basis of temperatures measured by an around-a-furnace-core furnace exterior-sided thermometer 192 and an around-a-furnace-core furnace interior-sided thermometer 193, and derives a furnace-bottom heat transfer coefficient h(t) using them and an air-cooling temperature T(t). Then, the apparatus for equipment monitoring 200 solves the one-dimensional nonstationary heat-transmission inverse problem on the basis of the temperature measured by a furnace-core thermometer 191 and the furnace-bottom heat transfer coefficient h(t), and thereby derives a furnace-core furnace-bottom inner wall surface-sided heat flux qand an x-axis coordinate of a furnace-bottom refractory at a time that an interpolation/extrapolation temperature function T^ (x, t) becomes equal to a temperature of a molten iron 142 by solving the one-dimensional nonstationary heat-transmission inverse problem.SELECTED DRAWING: Figure 1
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Inventors:
NAKAGAWA JUNICHI
MOTOMURA HIROSHI
MOTOMURA HIROSHI
Application Number:
JP2018011550A
Publication Date:
August 01, 2019
Filing Date:
January 26, 2018
Export Citation:
Assignee:
NIPPON STEEL STAINLESS STEEL CORP
International Classes:
B22D41/02; B22D46/00; C21C5/52; F27D21/00
Domestic Patent References:
| JP2005082862A | 2005-03-31 | |||
| JP2016221537A | 2016-12-28 | |||
| JP2005134383A | 2005-05-26 | |||
| JP2017227350A | 2017-12-28 | |||
| JP2007075789A | 2007-03-29 |
Attorney, Agent or Firm:
Takayoshi Kokubun