Equipment Upgrades for Aalborg boilers – electric FD fan actuator Enhanced forced-draught fan control for improved burner reliability The electric FD (forced-draught) fan actuator upgrade kit contains everything needed to replace the original pneumatically operated fan actuator of your Alfa Laval Aalborg burner with an electrically operated actuator. This results in a highly accurate and maintenance-free damper positioning system. The fan actuator controls the dampers that match the FD fan airflow to combustion needs. Using an electric actuator ensures a steady and reliable airflow to the burner, without fluctuations that can lead to smoke, low efficiency and unintended flame failures. Unlike a pneumatic actuator, an electric actuator is not affected by moisture contamination in the control air. Moreover, it has a feedback system based on internal positioning, rather than a mechanical feedback system. Accuracy is further improved by the actuator’s modulating speed, which minimizes airflow fluctuations during small adjustments. Benefits • Increased reliability – no faults resulting from moisturecontaminated control air • Natural draught (ventilation) due to fail-safe position in the event of blackout • Cost savings through uptime and spare parts reduction • Easy installation without calibration • Limited maintenance
Share
Print
Download PDF file