The working state of the moving ring, static ring, sealing ring and elastic element of the mechanical seal

The working state of the moving ring, static ring, sealing ring and elastic element of the mechanical seal

21/11/30 09:23:11

Mechanical seals usually consist of many different components. Each component plays an important role in the use of the equipment. Presumably many users do not understand its specific working status, so the corresponding functions will be introduced next.

1. Dynamic sealing ring (also known as dynamic ring) It rotates with the pump shaft and fits closely with the static ring to form a sealing surface to prevent medium leakage. It slides relative to the static ring, and when the sealing surface wears out, the moving ring can move axially for automatic compensation to keep the sealing surface in good fit.

2. The static sealing ring (also known as the static ring) is placed on the pump casing and does not move. It is paired with the moving ring to form a sealing surface to prevent medium leakage.

3. The sealing ring of the static ring adopts O-rings made of synthetic rubber or PTFE, V-rings and other shapes of sealing rings to prevent leakage between the static ring and the gland (or between the static ring seat) , and make the static ring have a certain degree of floating.

4. The moving ring sealing ring adopts the same sealing ring as the static sealing ring to prevent the medium from leaking from the gap between the moving ring and the shaft, and make the moving ring have a certain degree of floating to ensure good adhesion between the moving ring and the static ring Together, when the sealing surface is worn, the moving ring can move axially.

5. Elastic elements Elastic elements mainly play the role of compensation and cushioning. The elastic force makes the end face of the seal produce a reasonable end face specific pressure, which is also a key factor affecting the service life and sealing performance of the seal. Elastic elements mainly include springs and bellows. Cylindrical coil springs are usually used, but conical springs and wave springs are also used; bellows elastic elements include rubber bellows, polytetrafluoroethylene bellows and metal bellows.

The above is the display of the working status of the dynamic ring, static ring, sealing ring, and elastic components of the mechanical seal. According to the introduction of its work content, the equipment can be used better, so as to reduce the failure of the equipment and ensure the performance of the equipment. .