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U.S. Department of Energy
Office of Scientific and Technical Information

Buzz suppression in burners of high capacity direct fired fluid heaters

Patent ·
OSTI ID:6369458
A direct fired burner suitable for use with either high volatility fuels including natural gas and gasoline or low volatility fuels including No.2 Diesel fuel and featuring burner buzz control is described, comprising: a combustion chamber defined by an inner barrel having a closed end and an opposite open end, an outer barrel containing said inner barrel and defining an annular space there between, blower means at one end of said outer barrel for driving a stream of air into said combustion chamber through inlet means in said closed end, fuel injection means, fuel ignition means and swirl inducing means at said closed end for sustaining a combustion flame in said combustion chamber, an exhaust stack for exhausting combustion gases from said inner barrel to the atmosphere, a heat exchanger interposed between said open end of the inner barrel and said exhaust stack downstream of said combustion flame, and means fitted to a discharge opening of said stack away from contact with said combustion flame for partially restricting the aperture of said discharge opening of said exhaust stack whereby buzzing is suppressed within said combustion chamber upstream of said heat exchanger.
Assignee:
Zwick Energy Research Organization, Inc., Huntington Beach, CA (United States)
Patent Number(s):
US 5215454; A
Application Number:
PPN: US 7-749748
OSTI ID:
6369458
Country of Publication:
United States
Language:
English