Title:
Heat exchanger monitoring device and heat exchanger monitoring method
Document Type and Number:
Japanese Patent JP6362992
Kind Code:
B2
Abstract:
An anomaly monitoring device is installed in an integrated gasification combined cycle plant that experiences varying loads, and the device monitors a heat exchanger that performs heat exchange between a carbon-containing fuel and a heat exchange medium flowing through a heat transfer tube. For each load on the integrated gasification combined cycle plant, the anomaly monitoring device calculates the average value and the standard deviation of a state quantity of the heat exchanger, calculates the Mahalanobis distance on the basis of the average value and the standard deviation, and from the calculated Mahalanobis distance determines the presence or absence of an anomaly of the heat transfer surface of the heat transfer tube.
Inventors:
Hiroyoshi Kubo
Hiromi Aota
Tomonori Koyama
Kenichiro Kosaka
Yasunari Shibata
Urakata Yuichiro
Hiromi Aota
Tomonori Koyama
Kenichiro Kosaka
Yasunari Shibata
Urakata Yuichiro
Application Number:
JP2014213512A
Publication Date:
July 25, 2018
Filing Date:
October 20, 2014
Export Citation:
Assignee:
Mitsubishi Hitachi Power Systems Co., Ltd.
International Classes:
F28F27/00; G05B23/02
Domestic Patent References:
| JP5126304A | ||||
| JP5031088B2 | ||||
| JP2011106467A | ||||
| JP201581695A |
Foreign References:
| US8825278 |
Attorney, Agent or Firm:
Noriharu Fujita
Kunio Ueda
Kunio Ueda
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