F - Mech Eng,Light,Heat,Weapons – 28 – G
Patent
F - Mech Eng,Light,Heat,Weapons
28
G
257/1
F28G 13/00 (2006.01) F28B 11/00 (2006.01) F28G 1/12 (2006.01)
Patent
CA 1159818
ABSTRACT OF THE DISCLOSURE Provided is a method of cleaning cooling tubes of a heat transfer unit including a steam chamber through which the cooling tubes extend and into which steam generated in a steam power generating plant is introduced so as to exchange heat with a cooling water flowing through the cooling tubes. A cleaning bodies are introduced into the cooling water and then distributed to the cooling tubes so as to clean the latter. According to the present invention, the cooling tubes are divided into a plurality of groups each including a plurality of the cooling tubes having the same trends of cleanliness, and the cleaning bodies are respectively introduced to the groups with respective amounts suitable for cleaning the cooling tubes of each group on acount of the cleanli- ness of the cooling tubes of each group. Further, a system for cleaning cooling tubes of a heat transfer unit is provided for conducting the above method.
380350
Miyai Masahiko
Mukai Yasuteru
Okouchi Isao
Otake Katsumoto
Sasaki Takuya
Hitachi Ltd.
Kirby Eades Gale Baker
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