is it high risk?
is it high risk?
(OP)
i work in a power plant (1600MW: 4*150MW)
in the past we did chemical cleaning only for water wall tubes beacuse the risk of turbine blade damage.
at this time in the water wall tubes, deposit is 350 gr/m2. but in the supper heater tubes, it is 450 gr/m2.
we have the base 400gr/m2 (in water wall tubes) for chemical cleaning. and in overhaul we don't have decision for chemical cleaning,
IS IT HIGH RISK? WHY?
in the past we did chemical cleaning only for water wall tubes beacuse the risk of turbine blade damage.
at this time in the water wall tubes, deposit is 350 gr/m2. but in the supper heater tubes, it is 450 gr/m2.
we have the base 400gr/m2 (in water wall tubes) for chemical cleaning. and in overhaul we don't have decision for chemical cleaning,
IS IT HIGH RISK? WHY?





RE: is it high risk?
EPRI, which is an electric ultility research and application organization, recommends chemical cleaning of power boilers at or above 160 grams per m2 for waterwall tubes.
RE: is it high risk?
Multiple added major expenses, probable catastrophic tube failures: sounds HIGH RISK to me.