即经过电机的驱动效果驱使轴上装有叶片的作业轮告知旋转，气体随叶轮旋转而取得离心力，气体被甩出叶轮进入机壳，机壳内压强升高使气体经过导向出口被挤出。气体被叶轮甩出后，叶轮中心压强下降，外界气体又被风机从吸入口吸入，经过叶轮循环往复的旋转，气体被连绵不断的吸入和甩出，然后不断的运送气体。
The driving effect of the motor drives the working wheel with blades on the shaft to rotate, and the gas gains centrifugal force as the impeller rotates. The gas is thrown out of the impeller and enters the casing, and the pressure inside the casing increases, causing the gas to be squeezed out through the guide outlet. After the gas is thrown out by the impeller, the pressure at the center of the impeller decreases, and the external gas is sucked in by the fan from the suction port. After the impeller rotates back and forth, the gas is continuously sucked in and thrown out, and then continuously transported.
在此进程中叶轮对气体做功，使气体取得能量，战胜烟风道的各项阻力进入锅炉或将锅炉烟气排入烟囱。离心风机的结构首要包含叶轮、主轴、轴承、机壳、进气箱、排气箱、传动装置等部分。风机结构来看，各构件安装杂乱程度高，构件间存在密切联系，如果安装进程中任何一部分出现问题，势必会影响风机的安全和运行效率，因而需要从细节着手，采纳措施进行有用的操控。
In this process, the impeller works on the gas, allowing it to obtain energy and overcome various resistances in the flue gas duct to enter the boiler or discharge the boiler flue gas into the chimney. The structure of centrifugal fan mainly includes impeller, main shaft, bearing, casing, inlet box, exhaust box, transmission device and other parts. From the perspective of the fan structure, the installation of each component is highly disordered, and there are close connections between the components. If any part of the installation process encounters problems, it will inevitably affect the safety and operational efficiency of the fan. Therefore, it is necessary to start from details and adopt measures for effective control.