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Title: Apparatus for preventing particle deposition from process streams on optical access windows

Abstract

An electrostatic precipitator is disposed inside and around the periphery of the window of a viewing port communicating with a housing through which a particle-laden gas stream is being passed. The precipitator includes a pair of electrodes around the periphery of the window, spaced apart and connected to a unidirectional voltage source. Application of high voltage from the source to the electrodes causes air molecules in the gas stream to become ionized, attaching to solid particles and causing them to be deposited on a collector electrode. This prevents the particles from being deposited on the window and keeps the window clean for viewing and making optical measurements.

Inventors:
 [1];  [2]
  1. (Fredericksburg, VA)
  2. (Morgantown, WV)
Issue Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
OSTI Identifier:
868809
Patent Number(s):
5217510
Assignee:
United States of America as represented by United States (Washington, DC) NETL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; preventing; particle; deposition; process; streams; optical; access; windows; electrostatic; precipitator; disposed; inside; periphery; window; viewing; communicating; housing; particle-laden; gas; stream; passed; pair; electrodes; spaced; apart; connected; unidirectional; voltage; source; application; causes; air; molecules; ionized; attaching; solid; particles; causing; deposited; collector; electrode; prevents; clean; measurements; process streams; optical access; optical measurements; particle deposition; voltage source; solid particles; process stream; gas stream; spaced apart; disposed inside; collector electrode; solid particle; particle-laden gas; electrostatic precipitator; air molecules; optical measurement; /96/55/

Citation Formats

Logan, Ronald G., and Grimm, Ulrich. Apparatus for preventing particle deposition from process streams on optical access windows. United States: N. p., 1993. Web.
Logan, Ronald G., & Grimm, Ulrich. Apparatus for preventing particle deposition from process streams on optical access windows. United States.
Logan, Ronald G., and Grimm, Ulrich. Fri . "Apparatus for preventing particle deposition from process streams on optical access windows". United States. https://www.osti.gov/servlets/purl/868809.
@article{osti_868809,
title = {Apparatus for preventing particle deposition from process streams on optical access windows},
author = {Logan, Ronald G. and Grimm, Ulrich},
abstractNote = {An electrostatic precipitator is disposed inside and around the periphery of the window of a viewing port communicating with a housing through which a particle-laden gas stream is being passed. The precipitator includes a pair of electrodes around the periphery of the window, spaced apart and connected to a unidirectional voltage source. Application of high voltage from the source to the electrodes causes air molecules in the gas stream to become ionized, attaching to solid particles and causing them to be deposited on a collector electrode. This prevents the particles from being deposited on the window and keeps the window clean for viewing and making optical measurements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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