Heat exchanger and method for controlling heat exchanger

The purpose is to provide a heat exchanger and a method for controlling a heat exchanger with which it is possible to reduce heat transfer pipe corrosion and adhesion of soot and dust present in an exhaust gas in the interior of a reheater even when there is variation in driving conditions. The heat...

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Bibliographic Details
Main Authors USHIKU TETSU, MIYACHI TSUYOSHI, KAMIYAMA NAOYUKI, KAGAWA SEIJI
Format Patent
LanguageChinese
English
Published 26.09.2017
Subjects
AIR SUPPLY
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
DRAUGHT-INDUCING
FLUES
HEATING
LIGHTING
MECHANICAL ENGINEERING
REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES
SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS
WEAPONS
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Summary:The purpose is to provide a heat exchanger and a method for controlling a heat exchanger with which it is possible to reduce heat transfer pipe corrosion and adhesion of soot and dust present in an exhaust gas in the interior of a reheater even when there is variation in driving conditions. The heat exchanger 20 is provided with: a heat recovery unit 21 for causing a heat medium M to recover the heat of an exhaust gas G2 by a first heat exchange in which the exhaust gas and a fin tube 21a channeling the heat medium M are brought into contact; a reheater 22 provided with a preheating unit 221 for preheating the exhaust gas G6 by a second heat exchange in which the exhaust gas G6 after the first heat exchange and a tube 221a channeling the heat medium M after the first heat exchange are brought into contact, and heaters 222, 223 for heating the exhaust gas G6 by a third heat exchange in which the exhaust gas G6 after the second heat exchange and the heat medium M after the second heat exchange are brought into
Bibliography:Application Number: CN201580075318