DEVICE FOR RECOVERING RESIDUAL HEAT FROM EXHAUST GAS
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United States of America Patent
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Issued Date -
May 23, 2013
app pub date -
Jun 13, 2011
filing date -
Jun 25, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device for recovering residual heat from exhaust gas includes: a dry economizer which heats to-be-heated water by utilizing sensible heat of the exhaust gas, the dry economizer being provided in a duct extending to a funnel through which the exhaust gas is emitted to atmosphere; and a condensation economizer which heats to-be-heated water by utilizing latent heat of condensation of the exhaust gas, the condensation economizer being provided on a downstream side of the dry economizer. The duct includes an upstream duct in which the dry economizer is provided and a downstream duct connected to the upstream duct and directing the exhaust gas to flow upwardly. The condensation economizer is arranged in the downstream duct so that temperature of the exhaust gas amounts to condensation temperature at a vicinity of an upper part of the condensation economizer.
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