In industrial boiler operation, the air supply system is critical to combustion efficiency and operational safety. Insufficient air or pressure imbalances can lead to incomplete combustion, increased energy consumption, or even boiler failure. Common causes include blocked air inlets, negative pressure in the boiler room, and improper maintenance.

1. Calculating Required Air Volume

Normal boiler combustion requires sufficient fresh air. You must calculate the air volume needed for the boiler system. Generally, each horsepower of boiler capacity requires approximately 5 square inches of air flow. For example, an 80-horsepower boiler requires about 400 square inches of air inlet to ensure stable combustion.

2. Properly Position Air Intakes

Ensure the boiler room has two or more permanent air intakes, ideally located on opposite sides of the room at a height no higher than 2.2 meters (7 feet 3 inches). This facilitates smooth airflow, aids boiler cooling, and maintains stable combustion. Regularly inspect to prevent dust, debris, or pests from blocking inlets; consider installing protective screens at entry points.

3. Regularly Check Air Supply Conditions

Simple test: Open the boiler room door. If noticeable air rushes in, the room is under negative pressure, which can compromise combustion efficiency and safety. Contact professionals for inspection and optimization if this occurs.