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

Patent · Fri Jan 01 00:00:00 EST 1993

OSTI ID:868809

Logan, Ronald G ^[1]; Grimm, Ulrich ^[2]

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1. Fredericksburg, VA
2. Morgantown, WV

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.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5217510
• OSTI ID: 868809
• Country of Publication: United States
• Language: English

Related Subjects

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
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