Sealed, nozzle-mix burners for silica deposition
Abstract
Burners (40) for producing fused silica boules are provided. The burners employ a tube-in-tube (301-306) design with flats (56, 50) on some of the tubes (305, 301) being used to limit the cross-sectional area of certain passages (206, 202) within the burner and/or to atomize a silicon-containing, liquid source material, such as OMCTS. To avoid the possibility of flashback, the burner has separate passages for fuel (205) and oxygen (204, 206), i.e., the burner employs nozzle mixing, rather than premixing, of the fuel and oxygen. The burners are installed in burner holes (26) formed in the crown (20) of a furnace and form a seal with those holes so that ambient air cannot be entrained into the furnace through the holes. An external air cooled jacket (60) can be used to hold the temperature of the burner below a prescribed upper limit, e.g., 400.degree. C.
- Inventors:
- Issue Date:
- Research Org.:
- Corning Incorporated, Corning, NY (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174386
- Patent Number(s):
- 6588230
- Application Number:
- 09/364,149
- Assignee:
- Corning Incorporated (Corning, NY)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C03 - GLASS C03B - MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Adler, Meryle D. M., Brown, John T., and Misra, Mahendra K. Sealed, nozzle-mix burners for silica deposition. United States: N. p., 2003.
Web.
Adler, Meryle D. M., Brown, John T., & Misra, Mahendra K. Sealed, nozzle-mix burners for silica deposition. United States.
Adler, Meryle D. M., Brown, John T., and Misra, Mahendra K. Tue .
"Sealed, nozzle-mix burners for silica deposition". United States. https://www.osti.gov/servlets/purl/1174386.
@article{osti_1174386,
title = {Sealed, nozzle-mix burners for silica deposition},
author = {Adler, Meryle D. M. and Brown, John T. and Misra, Mahendra K.},
abstractNote = {Burners (40) for producing fused silica boules are provided. The burners employ a tube-in-tube (301-306) design with flats (56, 50) on some of the tubes (305, 301) being used to limit the cross-sectional area of certain passages (206, 202) within the burner and/or to atomize a silicon-containing, liquid source material, such as OMCTS. To avoid the possibility of flashback, the burner has separate passages for fuel (205) and oxygen (204, 206), i.e., the burner employs nozzle mixing, rather than premixing, of the fuel and oxygen. The burners are installed in burner holes (26) formed in the crown (20) of a furnace and form a seal with those holes so that ambient air cannot be entrained into the furnace through the holes. An external air cooled jacket (60) can be used to hold the temperature of the burner below a prescribed upper limit, e.g., 400.degree. C.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 08 00:00:00 EDT 2003},
month = {Tue Jul 08 00:00:00 EDT 2003}
}