What is a significant risk of not conducting regular purging in a boiler?

Conducting regular purging in a boiler is crucial for maintaining safety and operational integrity. One significant risk of neglecting this practice is the potential for explosions. Purging removes unburnt fuel and flammable gases from the combustion chamber before the ignition process begins. If these combustible materials accumulate due to inadequate purging, they can create a highly volatile environment. When ignition occurs with these flammable substances present, it can lead to a sudden and uncontrolled explosion, posing serious safety hazards to personnel and physical structures.

Maintaining regular purging helps ensure that only the appropriate air-fuel mixture enters the combustion chamber, mitigating the risk of backfire or explosion. It is a necessary safety measure that protects the boiler system and the operators involved, reinforcing the importance of this practice in boiler management.