Purged window apparatus. [On-line spectroscopic analysis of gas flow systems]

Patent · Mon Apr 05 00:00:00 EST 1982

OSTI ID:6538123

Ballard, E O

A purged window apparatus is described which utilizes tangentially injected heated purge gases in the vicinity of electromagnetic radiation transmitting windows and a tapered external mounting tube to accelerate these gases to provide a vortex flow on the window surface and a turbulent flow throughout the mounting tube thereby preventing backstreaming of flowing gases under investigation in a chamber to which a plurality of similar purged apparatus is attached with the consequent result that spectroscopic analyses can be undertaken for lengthy periods without the necessity of interrupting the flow for cleaning or replacing the windows due to contamination.

• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy
• Application Number: ON: DE83006889
• OSTI ID: 6538123
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
GAS ANALYSIS
LASER SPECTROSCOPY
RAMAN SPECTRA
WINDOWS
DESIGN
COAL GASIFICATION
GAS FLOW
TURBULENT FLOW
VORTEX FLOW
FLUID FLOW
GASIFICATION
OPENINGS
SPECTRA
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
420200* - Engineering- Facilities
Equipment
& Techniques
400104 - Spectral Procedures- (-1987)