What is the main purpose of automatic controllers in a boiler?

Automatic controllers play a crucial role in maintaining proper steam pressure within a boiler system. These controllers continuously monitor the pressure levels and make real-time adjustments to maintain the desired setpoint. By regulating the fuel supply and water flow based on pressure readings, they ensure that the boiler operates efficiently and safely.

Maintaining the correct steam pressure is vital for the optimal performance of the boiler and the processes it serves. If steam pressure deviates from the setpoint, it can lead to inefficient operation or even equipment failure. Therefore, the primary function of automatic controllers is to ensure that the pressure remains within safe and effective limits, allowing the boiler to perform its intended functions accurately.

While other aspects like fuel consumption, safety, and water treatment are important, they are generally considered secondary to the fundamental need to maintain proper steam pressure to ensure the boiler operates safely and effectively.