Combustion – Heated line section feeds flame holder – Distinct exhaust products line heats feed line
Patent
1986-12-18
1988-06-21
Dority, Jr., Carroll B.
Combustion
Heated line section feeds flame holder
Distinct exhaust products line heats feed line
F23D 1144
Patent
active
047522127
ABSTRACT:
A recuperative burner comprises an outer annular two part duct 13 and 14 for supplying combustion air to four axially aligned chambers 15 located radially inwardly of the ducts 13 within the annular space between the duct 14 and a central fuel pipe 23. The combustion air enters the burner by way of an inlet 9 before entering the outermost duct 14. The air then travels along the innermost duct 13 and enters each chamber 15 by way of an inlet 20. The air then flows forwardly along each chamber 15 before leaving the chamber 15 by way of an outlet 21 before mixing with the fuel leaving a nozzle 24 at the outlet end of the fuel pipe. Waste gas flows in the spaces 22 between the chambers 15 in a direction opposite to the direction of air flow in the chambers 15 before leaving the burner 1 by way of an outlet 11. Heat from the waste gas is transferred to the air flowing in each chamber 15 and to the air flowing in the annular duct 14.
REFERENCES:
patent: 4210411 (1980-07-01), Ward et al.
patent: 4408983 (1983-10-01), Masters et al.
patent: 4453913 (1984-06-01), Gitman
British Gas plc
Dority Jr. Carroll B.
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