Primary Air Fan

primary air fan

The primary fan functions to draw air from the atmosphere or the cold air duct at the blower outlet, providing energy to preheat air before conveying pulverized coal into the combustion chamber through burners. It is widely used in coal-fired power units, oil-fired units, and circulating fluidized bed units. Centrifugal fans are typically employed for units below 300MW, while two-stage adjustable vane axial flow fans are preferred for units above 300MW. The system operates within a flow rate range of 30-200m³/s and a pressure range of approximately 10,000-22,000Pa.

technological superiority ：

1. The centrifugal fan and adjustable blade axial flow fan are imported from Germany with advanced technology, featuring a wide range of technical parameters and high adaptability.

2. Advanced design, adopting a "tailor-made" approach to ensure optimal fit.

3. The fan features a flat curve and a wide high-efficiency range, with high operational efficiency, all meeting the national first-class energy efficiency standards.

4. The system features multiple adjustment modes, including stepless adjustment, on-the-go adjustment, and frequent adjustment, to meet diverse user requirements.