Multi-mode combustion device and method for using the device
AssigneeAir Products and Chemicals, Inc.
InventorsMatthew James Watson, Douglas Jay Strange, Joseph Keith Juretus, Kevin Alan Lievre
Life of this patent
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Abstract
An apparatus for continuation of combustion with a combustion apparatus when the supply of the normal operating oxidant or normal operating fuel is disrupted, or temporally reduced. Air or oxygen enriched air or oxygen and a gaseous fuel or a liquid fuel or both a gaseous and liquid fuel are introduced into the combustion apparatus in place of the normal oxidant-fuel mixture to effect combustion and maintain the heating level in the furnace. A burner capable of firing in any one of the following nine firing modes: Air-Gas; Air-Oxy-Gas; Oxy-Gas; Air-Oil; Air-Oxy-Oil; Oxy-Oil; Air-Oil-Gas; Air-Oxy-Oil-Gas; Oxy-Oil-Gas.
Claims27
A combustion device comprising a refractory block having two passages including a top passage and a bottom passage, a burner mounting plate affixed to the refractory block, and a burner housing affixed to the burner mounting plate, the burner housing having a combustion air inlet, an oxygen inlet, a liquid fuel inlet, and gaseous fuel inlet;
- wherein the burner housing is configured to mix air provided to the air inlet and oxygen provided to the oxygen inlet to form an oxidant and to direct the oxidant to both of the two passages in the refractory block;
- and
- wherein the burner housing is configured to direct liquid fuel to one of the at least-two passages and gaseous fuel to the other of the two passages.
Dependencies are inferred from the claim text.