Title:
METHOD OF OPERATING ROTATING REGENERATIVE HEAT EXCHANGER
Document Type and Number:
WIPO Patent Application WO/2002/003005
Kind Code:
A1
Abstract:
A method of operating a rotating regenerative heat exchanger capable of preventing the excessive contact of a rotatingly sliding part even when a furnace temperature varies largely, comprising the steps of providing a dilution damper (16) to return a part of the low temperature exhaust gas from the rotating regenerative heat exchanger (10) on the exhaust gas inlet side of the rotating regenerative heat exchanger (10) recovering an exhaust heat of the exhaust gas from a furnace such as a billet heating furnace, a billet heat treatment furnace, and an ingot soaking pit, and opening the dilution damper (16) when the furnace temperature varies, whereby an abrupt change in the exhaust gas temperature on an exhaust gas inlet side can be prevented, an outside air sucking damper (20) installed on the exhaust gas outlet side capable of being used together with the dilution damper, the exhaust gas temperature on the exhaust gas inlet side being desirable to be suppressed to 150 ° /Hr or below.
Inventors:
FUKUTANI KAZUHIKO (JP)
OHKOHCHI TOSHIHIRO (JP)
TSUBOI SHUICHI (JP)
MIYAMOTO TOMOHARU (JP)
OHKOHCHI TOSHIHIRO (JP)
TSUBOI SHUICHI (JP)
MIYAMOTO TOMOHARU (JP)
Application Number:
PCT/JP2001/005721
Publication Date:
January 10, 2002
Filing Date:
July 02, 2001
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
ALSTOM POWER NV (NL)
FUKUTANI KAZUHIKO (JP)
OHKOHCHI TOSHIHIRO (JP)
TSUBOI SHUICHI (JP)
MIYAMOTO TOMOHARU (JP)
ALSTOM POWER NV (NL)
FUKUTANI KAZUHIKO (JP)
OHKOHCHI TOSHIHIRO (JP)
TSUBOI SHUICHI (JP)
MIYAMOTO TOMOHARU (JP)
International Classes:
F23L15/02; F28D19/04; F27D17/00; (IPC1-7): F28D19/04; F23G5/46; F23J15/00; F23L15/02; F27D17/00
Foreign References:
| US6007761A | 1999-12-28 | |||
| JPH0239228Y2 | 1990-10-22 |
Attorney, Agent or Firm:
Yoshitake, Kenji (Fuji Bldg. 2-3 Marunouchi 3-chome Chiyoda-ku, Tokyo, JP)
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