Cleaning Ideas Needed for Water Tube Boiler

1. dry tubes out thoroughly

2. fill with Castrol decarboniser ( i think it is Triclorethelyene) leave for about 12 hours.

3. drain and refill with water

4. inject high pressure air or preferably nitrogen, in low end with top end open.

5. wash through with water

That should clean it off. collect the effluent as the decarboniser is toxic via the skin.

I presume the hard carbon layer is on the outer surface of water-tubes. This side is exposed to furnace oil flame and formation of soot is quite common due to incomplete combustion.

I feel chemical cleaning would be a effective solution.

Why not try out on-line techniques like dozing with "Polarchem L2"? See website www.polarchem.com

Hi Amjadli,

You do not say where you are BUT PLEASE DO NOT use triclo...as it has been restricted for use because of what it does to the enviro..YES it works..but the dammage it does is not worth.and the staff you have will have to dress like space man..The stuff from polarchem looks better.Now if you were in africa I would recomend carbon cleaner made in South Afica.

many thanks

robert Ferreiro

Mr. Robert Ferreiro,

Hope u r fine and thanks for such offer in africa..

I belongs to Pakistan and work here as A Maintenance Engineer at Power Generation Company....

will u please tell me more about Carbon Cleaner and its application. will it be useful for hard carbon soot or sulphure which is caused due to poor quality of furnace oil or incomplete combusion.

Any Idea for Sand Blasting of outer surface of water tube boiler?????

Thanks again..

send me your email address and I will send details

best

Robert Ferreiro

In the case of a railway steam locomotive, it was common practice when the engine was working hard for the fireman to take a shovelful of dry sand out of the sand-box and to throw it into the firebox. The draft pulled the sand through the tubes and the exhaust blast blew both it and the entrained soot out the chimney.

Not recommended for a Monday morning when all that washing was out drying on the line in the gardens by the lineside.

How times have changed...

I think you will need to install a soot blower system if you haven´t.

This website can help you http://www.diamondpower.com/DP/Framesets/ProductSet.html

Regards

Ernesto

I feel Ernesto has good insticts.

I agree with him about a soot blower which is foremost requirement if its not there. If its there and yet not being used, it should be immediately put back in service before trying out wilder ideas like sand blasting inside water-tube boilers.

Thanks Mr. Ernesto.

Actually I m just talking about the cleaning during shutdown not operation, as 8 Nos. Soot blowers are installed per boiler and are operated daily for soot blowing.

during shut down soot (carbon) is some what easy to clean but if it keeps unclean it react with outside are moisture and sticky carbon is built which is very harmful for material and also difficult to clean.

hope u understand now better..

thanks

Engr. Amjad Ali Shah

Since you are from Pakistan, I'll suggest you contact Mr.Suhail Hussain of Gresham's who manufacturers high pressure water tube boilers and will help you out.