The sealing structure of a DC centrifugal fan is crucial for its proper operation and performance. Optimization of the sealing structure can improve the efficiency, reliability, and durability of the fan.

One way to optimize the sealing structure is to choose the right sealing material. The sealing material should be able to withstand the high temperatures, pressures, and speeds encountered in the fan. It should also be resistant to wear, corrosion, and leakage. Materials such as rubber, silicone, and fluoroplastics can be used depending on the specific application requirements.

Another approach is to design an effective sealing mechanism. This can involve using gaskets, seals, or labyrinth seals to prevent air leakage. The sealing mechanism should be designed to fit snugly and securely, ensuring a tight seal.

In addition, proper installation and maintenance of the sealing structure are essential. The seals should be installed correctly and tightened to the appropriate torque. Regular inspection and replacement of worn or damaged seals can help to maintain the integrity of the sealing structure.

Optimization of the sealing structure can also involve reducing the clearance between the moving and stationary parts of the fan. This can be achieved by using precision machining and assembly techniques. Reducing the clearance can minimize air leakage and improve the efficiency of the fan.

 optimization of the sealing structure of a DC centrifugal fan is an important aspect of its design and operation. By choosing the right materials, designing an effective sealing mechanism, and ensuring proper installation and maintenance, the sealing performance of the fan can be significantly improved.