Dear all,
thank you all for the replies.
For sure the one of the first step we did was to send a samples to 2 different metallurgic labs and to inspect the whole boier with a boilmaker.
4)5) The boiler was designed and manufactured in 60's to burn coal (it was a typical coal power station)...
1) I do have soot-blowers. the path of the soot-blowers is clean (and I would say smooth [pics attached]). Everywhere (except taht along the soot-blowers path) the ash crust is very strong (it must be removed with the grinder). So it also gives a sort of protection to the tubes.
2) First we...
Dear all,
I'd like to ask an opinion about a power plant boiler.
The attached picture shows a superheater heat exchanger.
The material is partially ASTM A213 T12 and partially 14CD3 (Afnor standard, should be equivalent to a ASTM A213 T22).
The internal fluid is steam, internal pressure 85...
