Boiler apparatus

F - Mech Eng,Light,Heat,Weapons – 22 – D

Patent

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Details

F22D 11/00 (2006.01) F22D 1/02 (2006.01)

Patent

CA 2603431

[PROBLEMS] To provide a boiler apparatus that suppresses corrosion of a heat exchanger in a boiler caused by the influence of water. [MEANS FOR SOLVING PROBLEMS] A boiler apparatus comprising boiler water collection means (3) for collecting boiler water present within a boiler (2) and boiler water addition means (4) for adding the collected boiler water to feed water before the feed to the boiler (2). According to this constitution, boiler water enriched with silica as an alkaline and corrosion inhibitory component is collected by the boiler water collection means (3) from the boiler (2) during burning operation. The collected boiler water is added to feed water stored within a feed water tank (15) by the boiler water addition means (4) to regulate this feed water to such a quality that can inhibit corrosion caused in a part of connection between a lower header (6) and each water pipe (7) in the boiler (2).

Le problème à résoudre dans le cadre de la présente invention est de proposer un dispositif pour chaudière qui supprime la corrosion, due à l'eau, d~un échangeur de chaleur dans une chaudière. La solution proposée consiste en un dispositif pour chaudière comprenant un moyen de recueil (3) de l'eau de chaudière destiné à recueillir l~eau de chaudière présente à l~intérieur de la chaudière (2), et un moyen d~ajout d'eau de chaudière (4) destiné à ajouter l~eau de chaudière recueillie à l~eau d~alimentation, avant l~introduction de celle-ci dans la chaudière (2). Ainsi, de l~eau de chaudière enrichie en silice, qui est un composant alcalin et inhibant la corrosion, est recueillie par le moyen de recueil (3) à partir de la chaudière (2) pendant les opérations de combustion. L~eau de chaudière recueillie est ajoutée à de l~eau d~alimentation stockée dans un réservoir d~eau d~alimentation (15) par le moyen d~ajout (4) afin d~ajuster cette eau d'alimentation sur une qualité pouvant inhiber la corrosion survenant sur une pièce de raccord entre un collecteur inférieur (6) et chaque tuyau d~eau (7) de la chaudière (2).

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