What is the primary function of a draft gauge in a boiler?

The primary function of a draft gauge in a boiler is to measure the pressure difference and ensure proper airflow for combustion. This measurement is critical because the draft gauge provides insight into the pressure conditions within the combustion chamber and the surrounding areas, which is essential for achieving optimal combustion efficiency.

Proper airflow is vital for the complete burning of fuel, which in turn affects the overall efficiency and safety of the boiler operation. An adequate draft ensures that combustion gases are effectively expelled and that fresh air is drawn into the system, facilitating the combustion process. Monitoring draft levels helps operators adjust the combustion process as necessary, ensuring that the boiler operates within safe and efficient parameters.

This function directly influences factors such as fuel efficiency, emissions levels, and the risk of hazardous situations such as backdrafts or incomplete combustion, which could lead to increased carbon monoxide levels. Therefore, understanding and monitoring the draft is fundamental to effective boiler management.