F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
F22B 37/48 (2006.01) F22B 37/50 (2006.01) F22B 37/56 (2006.01) F28G 1/16 (2006.01) F28G 9/00 (2006.01)
Patent
CA 2345096
A method of controllable cooling of a boiler (10) and removing exfoliated magnetite from the boiler tubes (30, 31) employs flowing dry gas through the boiler tubes (30, 31) at a flow velocity above the terminal velocity of the magnetite flakes as the boiler (10) is cooled from a temperature above the temperature at which exfoliation occurs. A method of removing magnetite blockages (100) from boiler tubes (30, 31) is also disclosed.
Cette invention se rapporte à un procédé servant au refroidissement contrôlable d'une chaudière (10) et à l'élimination de la magnétite exfoliée se trouvant sur les tubes (30, 31) de la chaudière, ce procédé consistant à laisser s'écouler un gaz sec dans les tubes (30, 31) de la chaudière à une vitesse supérieure à la vitesse terminale des lamelles de magnétite, à mesure que la chaudière (10) est refroidie à partir d'une température supérieure à la température à laquelle se produit l'exfoliation. Cette invention présente également un procédé permettant d'éliminer les bouchons de magnétite (100) obstruant les tubes (30, 31) d'une chaudière.
C. S. Energy Ltd.
P.eng. Theriault Mario D.
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