Plant and Electrostatic Precipitator Operation
Maintain proper process conditions (i.e. boiler operation). Upset conditions in the process will affect
the performance of the Electrostatic Precipitator. Also, avoid thermal excursions or other similar conditions
that may cause damage to the ESP (such as operating above design temperatures). This may stress and thus bend
the collecting plate.
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Maintain operation of penthouse seal air system. The seal air system must be operating continuously.
The purpose of the seal air system is to maintain the insulators in the penthouse free from the dirty
flue gases. Keeping the penthouse pressurized will avoid any influx of the flue gas up into the insulators,
which will result in insulator failure. |
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Make sure that the heater is operating properly. Loss of heater operation will result in cold air in the
penthouse that will create moisture resulting in sticky build-ups. This will also cause insulator failure
and corrosion. |
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Maintain air intake filters. Clean or change out as necessary. A clogged filter will starve the blower and
result in reduced pressurization and possibly heater failure. |
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Maintain the integrity of the insulation and lagging. Loss of insulation on the ESP will result in cold spots
and eventually corrode your electrostatic precipitator.
Many old designed precipitators have poor penthouse insulation, which creates cold spots
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The recommended fix below suppresses any possible cold spots formation
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Make sure all safety key interlocks are in good working order and all interlocks work
correctly. Make sure no one has tampered and or defeated any interlocks. Safety key interlocks are installed for
personnel safety and must be treated accordingly. Make sure all dust caps are on the lock cylinders to keep out
any dirt that would otherwise damage the lock cylinder.
- Periodically, insert dry graphite powder into the lock cylinder to keep the lock mechanism lubricated.
Quick links to:
Electrostatic Precipitator Daily Observation
Regular Precipitator Inspection and Maintenance
Safety Rules to Respect While Performing Maintenance on a Precipitator
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