초록 ▼

A hot fluid generating apparatus includes a combustion chamber, a regenerative combustion burner, a fluid passage formed along a wall structure of the combustion chamber, and a device for causing fluid to flow in the fluid passage. The combustion chamber has a flame radiation heat transfer only as a

A hot fluid generating apparatus includes a combustion chamber, a regenerative combustion burner, a fluid passage formed along a wall structure of the combustion chamber, and a device for causing fluid to flow in the fluid passage. The combustion chamber has a flame radiation heat transfer only as a heat transfer portion. A portion of the wall structure opposite to the burner is utilized as a radiation heat transfer portion. A portion of exhaust gas from the burner is recirculated to the supply air to suppress generation of NOx. A portion of the wall structure close to the burner is formed to be a cone.

대표청구항 ▼

[ What is claimed is:] [1.] A hot fluid generating apparatus comprising:a wall structure defining a combustion chamber, said combustion chamber including a flame radiation heat transfer portion;a burner system including at least one regenerative combustion burner each including a heat storage member

[ What is claimed is:] [1.] A hot fluid generating apparatus comprising:a wall structure defining a combustion chamber, said combustion chamber including a flame radiation heat transfer portion;a burner system including at least one regenerative combustion burner each including a heat storage member, said burner system being constructed and arranged to conduct a regenerative combustion wherein combustion air supplied through said heat storage member into said combustion chamber forms a flame and exhaust gas within said combustion chamber and the exhaust gas in said combustion chamber is exhausted through said heat storage member whereby a portion of heat of the exhaust gas is stored in said heat storage member so that the heat stored in said storage member is then released to and preheats combustion air flowing through said heat storage member;a fluid passage formed along said wall structure of said combustion chamber; anda device for causing fluid to flow through said fluid passage;said wall structure of said combustion chamber having a portion adjacent to said at least one regenerative combustion burner, said portion of said wall structure having the shape of a cone gradually decreasing in diameter toward said at least one regenerative combustion burner.