We are getting elevated iron levels in IP boiler...What could be the cause. We don't see them anywhere else in the system.

 

Dkguerry.... can you provide a unit-of-measure, i.e., grains per gallon, or mg per liter?

Regards, Phil Corso

 

the non-volatile components will be concentrated,

blowing down the boiler is about the only way to keep them at acceptable levels, that must be done on a regular basis in most boilers.

 

> We are getting elevated iron levels in IP boiler...What could be the cause.
> We don't see them anywhere else in the system.

Our limit is 10 ppb, we are seeing less than <20 ppb.

 

What type of water treatment chemicals are you using? Overly aggressive application of scale remover can start dissolving boiler tubes causing iron levels to increase.

 

check your dearator, if you are not removing the D.O., it will attack iron and cause severe pitting.

 

Hi,

High iron levels in drum could be the reason of FAC in your riser tubes. LP tubes are more susceptible, however, it can be seen on IP as well.

You can expect soon a tube failure and heavy steam leak. That's what happened to us on our LP section. It started with high iron levels in drum and followed by damage on riser elbows, tees etc. Solution was easy. We just upgraded the riser tube material from CS to low alloy steel (P12.

Regards