Any plant manager knows that corrosion on an electrostatic precipitator isn’t a good sign – but before you can fix the problem, you’ve got to know how what’s behind it. Corrosion is a symptom of a deeper issue, and you can’t make the symptom go away until you find the root of it.
Possible Cause #1: Air Leakage
It’s possible that the problem behind your corrosion is air leakage, which can be solved in a multitude of ways. Here are a few things you can try:
- Replace leaking door gaskets
- Fix holes in casing
- Repair leaking test ports on duct work
- Inspect equipment for reduced gas temperature
- Repair or replace leaking expansion joints
- Replace damaged or worn-out hammer drive seals
- Replace damaged or worn-out rapper penetration seals
- Fix leaking weld seams
If one of these actions fixes your problem, great! But if not, it may not be an issue of air leakage at all. You may need to consider other causes to get your electrostatic precipitator functioning properly again.
Possible Cause #2: Bad Insulation Design
If you come to the conclusion that your corrosion is due to poor insulation, you’ll want to do one of two things:
- Re-insulate the part of your equipment (hot roof, penthouse, etc.) that you suspect or confirm is poorly insulated
- Check, replace, and/or install new hopper heaters
Once you have done these things, you are likely on your way to a corrosion-free ESP.
Contact Southern Field for Help with Your Electrostatic Precipitator
Do you need a replacement part for your ESP? We have a fully-stocked warehouse in Arden, NC, that is ready to deliver parts to your plant 24/7. Contact us today for more information!