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

Abstract

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.

Inventors:
Publication Date:
OSTI Identifier:
6538123
Application Number:
ON: DE83006889
Assignee:
Dept. of Energy EDB-83-043588
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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)

Citation Formats

Ballard, E.O. Purged window apparatus. [On-line spectroscopic analysis of gas flow systems]. United States: N. p., 1982. Web.
Ballard, E.O. Purged window apparatus. [On-line spectroscopic analysis of gas flow systems]. United States.
Ballard, E.O. Mon . "Purged window apparatus. [On-line spectroscopic analysis of gas flow systems]". United States.
@article{osti_6538123,
title = {Purged window apparatus. [On-line spectroscopic analysis of gas flow systems]},
author = {Ballard, E.O.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {4}
}