​Adjustment Techniques for Airflow in High-Pressure Cabinet Centrifugal Fans

Adjustment Techniques for Airflow in High-Pressure Cabinet Centrifugal FansHigh-pressure cabinet centrifugal fans are widely used in wastewater treatment, blast furnace smelting, coal preparation plants, mineral flotation, chemical gasification, vacuum systems, and other fields. They can also transport special gases. However, some users may be unsure how to adjust the airflow when operating these fans. Let's examine the details. Generally, there are two methods to adjust the airflow of high-pressure cabinet centrifugal fans. Adjustment Method 1: Preserving the fan's performance characteristics, alter the fan's speed to modify its pressure, airflow, and output. Increasing the fan's speed raises both airflow and pressure, while decreasing speed lowers them. The primary advantage of this method is minimal additional energy loss, making it economically efficient. The second adjustment method involves modifying the characteristics of the ductwork system by adjusting the throttle valve or altering the opening of the plug-in plate. In this case, airflow is inversely proportional to pressure and also relates to the opening of the throttle or damper.