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Patent Searching and Data


Title:
SOOT BLOWER CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/039031
Kind Code:
A1
Abstract:
The present invention increases the operation efficiency of a soot blower while suppressing a change in the steam temperature of a heat transfer tube. This soot blower control system is provided with: a soot blower (30) that jets steam onto the surface of a heat transfer tube (6); an inlet temperature sensor (20d) that detects the steam inlet temperature (Tin) of the heat transfer tube; an outlet temperature sensor (20e) that detects the steam outlet temperature (Tout) of the heat transfer tube; and a controller (100). The soot blower control system is characterized in that the controller calculates a temperature change value (dT) which is the difference between a first temperature difference (ΔT1) and a second temperature difference (ΔT2), which are differences between the steam inlet temperature and the steam outlet temperature at a first time point and a second time point, respectively, during operation of the soot blower and determines an operation interval of the soot blower so as to keep the temperature change value within the range of a target value.

Inventors:
DOI TOMOHIRO (JP)
GONDO HIROSHI (JP)
Application Number:
JP2020/023412
Publication Date:
March 04, 2021
Filing Date:
June 15, 2020
Export Citation:
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Assignee:
MITSUBISHI POWER LTD (JP)
International Classes:
F22B37/48; F23J3/00
Foreign References:
JP2001248802A2001-09-14
JP2019132515A2019-08-08
JP2008111578A2008-05-15
US20060191896A12006-08-31
CN106247308A2016-12-21
Attorney, Agent or Firm:
THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (JP)
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