What is the purpose of an auxiliary boiler?

The purpose of an auxiliary boiler is primarily to provide steam for start-up or emergency purposes. Auxiliary boilers play a critical role in ensuring that steam is readily available when needed, especially during the initial phases of starting up a larger main boiler or in the event of a main boiler failure. This capability is essential for maintaining operational efficiency and safety in industrial and power generation settings, as it allows for immediate backup steam supply.

While regulating steam pressure is an important function within boiler operations, the auxiliary boiler's main role is not to perform this task but rather to assist during specific circumstances like start-up or emergencies. Similarly, increasing the main boiler's output is not something that an auxiliary boiler is designed to do; it serves as a support system rather than a primary steam generator. Cooling the main boiler is also not a function associated with auxiliary boilers, as their purpose is to supplement steam generation, not to facilitate cooling processes.