Composition and Operating Environment of Industrial Boiler Fans

In industrial boiler fans, gas enters the impeller axially. As the gas flows through the impeller, it changes direction and then enters the diffuser. Within the diffuser, the gas alters its flow path to induce deceleration, thereby converting two forms of energy.

A slight increase in air pressure occurs during the impeller's rotational speed, followed by an expansion process. In multi-stage fans, a diffuser is used to guide airflow into the next impeller to generate pressure.

Industrial boiler fans primarily consist of an impeller and a casing. The impeller of an industrial boiler fan is directly mounted on the motor and connected to it via a coupling.

Centrifugal fans typically feature a single inlet and employ a single-stage impeller. High-flow pumps can draw air from both sides and utilize two back-to-back impellers, also known as double-suction.

The impeller is the primary component of a fan, with its shape, dimensions, number of blades, and manufacturing significantly impacting performance. The impeller must be statically or dynamically balanced to ensure stable fan rotation. Based on the direction of blade exit, impellers are classified into three types: forward-curved, radial, and backward-curved.

Industrial boiler fans are a general term for machinery used to discharge gases. Based on exhaust pressure, they can be categorized into blowers, fans, and turbo compressors. The so-called small and medium-sized enterprises in the fan industry primarily refer to companies producing various types of fan products.

Fan products are characterized by their large size and wide coverage range. Their structure is not overly complex, and manufacturing precision requirements are not particularly high. However, they account for approximately 96% of all fans in the industry.

Correcting the development of micro-enterprises in the fan industry not only holds practical significance for the growth of small businesses within the sector but also pertains to the long-term interests of the fan industry. Skilled workers, engineers, and technicians all require continuous knowledge acquisition.

Industrial boiler fans are used across various industrial sectors. Generally, industrial boiler fans are suitable for applications requiring low flow rates and high pressure, while axial fans are typically employed for high flow rates and low pressure scenarios.

With the continuous advancement of science and technology, people are placing increasingly higher demands on the use of fans. Boiler fans can be either centrifugal fans or axial fans, depending on the boiler specifications.

Based on their function, industrial boiler fans can be categorized into those that supply air to the boiler and those that exhaust flue gases from the boiler.