F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
257/18, 122/47
F22B 15/00 (2006.01) F22D 1/32 (2006.01) F28B 1/02 (2006.01) F28B 9/10 (2006.01) F28D 7/06 (2006.01)
Patent
CA 1053097
FEEDWATER HEATER Abstract of the Disclosure The invention is a feedwater heater which comprises a plurality of heating tubes arranged in U form, with feedwater being passed therethrough. The feedwater is introduced through a feedwater inlet chamber and a tube plate to which the ends of the heating tubes are attached. The feedwater exits through a feedwater outlet chamber and a tube plate to which the other ends of the heating tubes are attached. A first cylindrical body or shell surrounds one arm of the U-formed heating tubes, the cylindrical body having one end communicating with said feedwater outlet chamber and also provided with a hot steam inlet for introducing hot steam that serves as the feedwater heating source. A second cylindrical body or shell surrounds the other arm of the U-formed heating tubes, the second cylindrical body having its one end communicating with the feedwater inlet chamber and provided with a condensate outlet for discharging the steam condensate out of the system, and a spherical container formed from two hemispherical shells surrounds the bent portion of the tubes and communicating with both cylindrical bodies. The feedwater heater of the invention is very compact compared with prior art heaters of the same capacity.
255560
Horibe Yoshun
Sasaki Takuya
Suzuki Mituo
Yamane Tamotsu
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