Boiler failure (External corrosion & tube blockage)

External corrosion on tube
Cause : Soot accumulation on tube nest.

Preventive measures :
1. Proper weekly cleaning on tube nest.
2. Operate soot blower at every 4 hours operation.

Tube blockage due to scaling

Cause : Poor water treatment
i.e
TOO MANY INCIDENCES OF TURBID WATER.

BYPASSING OF SOFTENER, DEAERATOR AND SAND FILTER.

PREVENTIVE MEASURES :
PROPER DAILY MONITORING OF BOILER WATER ANALYSIS AND CONTROL DOSAGE OF CHEMICALS.

CHECK DOSING PUMPS.

CHECK AND CONTROL SOFTENER, DEAERATOR AND SAND FILTER. SERVICE IT ACCORDINGLY.

OBSERVE BOILER BLOWDOWN PRACTICES