APPARATUS FOR LATENT HEAT RECOVERY TYPE HOT WATER GENERATION AND METHOD OF MANUFACTURING THE SAME

APPARATUS FOR LATENT HEAT RECOVERY TYPE HOT WATER GENERATION AND METHOD OF MANUFACTURING THE SAME

PROBLEM TO BE SOLVED: To provide an apparatus for latent heat recovery type hot water generation having superior corrosion resistance for reducing manufacturing costs by reducing the raw material costs of stainless materials.SOLUTION: A latent heat recovery type hot water generation apparatus A incl...

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Bibliographische Detailangaben
Hauptverfasser: NAKATSUKA YUJI, HISHIDA TAKAHITO
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL
HEATING
LIGHTING
MECHANICAL ENGINEERING
RANGES
VENTILATING
WEAPONS
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an apparatus for latent heat recovery type hot water generation having superior corrosion resistance for reducing manufacturing costs by reducing the raw material costs of stainless materials.SOLUTION: A latent heat recovery type hot water generation apparatus A includes a member 2 made of ferrite stainless materials. A titanium oxide film which is ≥25% (cation atom%) in titanium concentration is formed at the surface section of the member 2. Preferably, the ferrite stainless material contains titanium, and a pitting corrosion resistance index is less than 30, and the titanium oxide film is formed by adding heat treatment to the member 2.