Boiler Operation Engineer Interview Question - 11
1.What is the purpose of steam blowing?
Ans.
The purpose of the steam blowing is to remove any foreign materials from steam piping & super heater coils after completion of erection work.
2.What will happen if steam blowing is not done after erection or repair of Boiler?
Ans.
If steam blowing is not done, considerable damage will happen to the steam lines & other end user applications like steam Turbine, process heat exchangers due to scale, debris & other foreign materials present in the newly erected pipe lines/coils.
3.What is the basis behind steam blowing?
Ans.
The basis behind the steam blowing is to create momentum equal to or preferably greater than that during normal operation. This will blow out all the debris from the steam lines.
4.What are the two different methods of steam blowing?
Ans.
Puff method & continuous method. In puff method thermal shock is created & in continuous steam blowing, constant steam purge is maintained.
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