How can thermal shock damage a boiler?

Thermal shock damage in a boiler occurs primarily due to rapid temperature changes. When a boiler experiences a sudden shift in temperature, different parts of the system can expand or contract at different rates. This uneven thermal expansion can lead to stresses that exceed the material's tolerance, resulting in cracking. Such cracks can compromise the structural integrity of the boiler, leading to potential leaks and operational failures. This phenomenon emphasizes the importance of maintaining consistent and controlled temperature conditions within the boiler to prevent the risk of thermal shock.