HEAT RECOVERY DEVICE FOR EXHAUST GAS, AND EXHAUST GAS TREATMENT SYSTEM USING THE SAME

Japanese Patent JP2017161150

A

PROBLEM TO BE SOLVED: To efficiently recover heat from exhaust gas and to perform an exhaust gas treatment corresponding to a dew point of the exhaust gas.SOLUTION: A heat recovery device for exhaust gas uses a single end double tube-type ceramics tube mainly composed of SiC and closed at one end, including a heat exchange portion 1 having a flow channel in which a liquid heat medium M can be circulated, inside of the ceramics tube, is disposed in a circulation passage for exhaust gas G of a heat resisting temperature of the ceramics tube or less, recovers hot heat of the exhaust gas G through the heat medium M heated by heat exchange with the exhaust gas G, and determines the temperature and a flow rate of the heat medium M so that a low temperature region in which a temperature of a part of a ceramics tube surface becomes a dew point of the exhaust gas G or less, and a high temperature region which is close to the low temperature region and in which the temperature becomes the dew point or more are formed, on the basis of a moisture content of the exhaust gas introduced into the circulation passage or the dew point of the exhaust gas, and the temperature of the fed-out exhaust gas is the dew point of the exhaust gas or more.SELECTED DRAWING: Figure 1

JPS61114711	METHOD AND APPARATUS FOR RECOVERING HEAT FROM CONTAMINATED HIGH TEMPERATURE EXHAUST GAS
JP2012201897	VACUUM DEGASSING SYSTEM

YAMAMOTO HASHIRA
TORII TOYOHIKO
IWAHASHI MASASHI
ANDO MASAHIRO
SUZUKI TOSHIHIRO

JP2016045755A

September 14, 2017

March 09, 2016

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NIHON YAMAMURA GLASS CO LTD
COORSTEK KK

F27D17/00; F23J15/00; F23J15/06; F28D7/12; F28F21/04

JP2015093252A	2015-05-18
JP2005016749A	2005-01-20
JPH09126665A	1997-05-16

Patent Business Corporation Unias International Patent Office

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