To provide a rotary regenerative heat exchanger with excellent corrosion resistance and clogging resistance.
The rotary regenerative heat exchanger, which preheats air for combustion by alternately contacting high temperature combustion exhaust gas and low temperature air for combustion and transferring heat of the combustion exhaust gas to the air for combustion with a heat transfer element loaded in a rotor as a heat regenerative body, is characterized by that the heat transfer element is formed of a steel plate containing C of 0.002-0.2%, Si of 0.6-2%, Mn of 0.1-2%, P of not more than 0.05%, S of not more than 0.05%, Cu of 0.1-1%, Cr of 4.5-6.5%, Ni of 0.1-0.5%, Al of 0.005-0.5%, Sb of 0.01-0.3% in percentage by mass, and a remnant containing Fe and inevitable impurities.
MIYAGAWA JUNICHI
SAITO MASAHIRO
YAMADA YOSHIKAZU
USAMI AKIRA
SAKAMOTO TOSHIHARU
NISHIMURA SATORU
KUSUNOKI TAKASHI
NIPPON STEEL CORP
| JPH10206050A | 1998-08-07 | |||
| JP2000017382A | 2000-01-18 | |||
| JPH0925536A | 1997-01-28 | |||
| JPH08120403A | 1996-05-14 |