Importance

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Abstract

A regenerative heat exchange system performs heat exchange by alternately passing combustion exhaust gas as high-temperature fluid and combustion air as low-temperature fluid through a fixed regenerator. A regenerative burner carries out combustion using preheated air from the exchange system. The regenerative heat system comprises: a permeable regenerator partitioned into three or more chambers in the circumferential direction; a double-pipe outlet/inlet partitioned into a supply chamber and an exhaust chamber; and changeover member which isolates the regenerator from the outlet/inlet and by which the regenerator selectively communicates with the outlet/inlet by a supply communicating hole and an exhaust communicating hole which are provided with such a positional relation that the supply communicating hole and the exhaust communicating hole do not simultaneously lie in any of the partitioned chambers.

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First Claim