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What are the advantages and uses of common floating seal rings?

Source: Time:2019-12-18 09:54:46 views:

What is a floating seal ring? Floating seal ring is called floating ring for short. It is also a kind of floating seal or piston seal ring. It is mainly used in centrifugal pump, centrifugal compressor, engine and other shaft seals to play a sealing role.
What is a floating seal ring? Floating seal ring is called floating ring for short. It is also a kind of floating seal or piston seal ring. It is mainly used in centrifugal pump, centrifugal compressor, engine and other shaft seals to play a sealing role.

So, what are the sealing methods of general centrifugal compressor? Jinhai industrial and mining machinery tells you that there are mechanical seals, labyrinth seals and packing seals in medium and high pressure centrifugal compressors. However, the heat dissipation and lubrication conditions of gas are not as good as that of liquid, so the packing seal can only be used at small and low speed. However, the mechanical seal is difficult to adapt when the circumferential speed is higher than 35m / s and the temperature is higher than 200 ℃, so there are only labyrinth seal and floating seal ring (seal) in common use.

What are the advantages of common floating seal rings?

1. It is not sensitive to the running state of the machine and has stable sealing performance;

2. The floating seal ring has no wear, reliable seal, simple maintenance and convenient maintenance;

3. The floating seal ring has simple specification and structure, only a few simple rings, pins, springs and other parts;

4. The floating seal ring is made of metal, which is solid and high temperature resistant;

5. Because of the liquid film in the sealing gap, the friction power is very small, so that the machine has high efficiency;

6. The utility model can form a multi-layer floating ring, which can effectively seal the high pressure of more than 10MPa;

7. The high-speed hydromechanical process can be in the range of 10000-20000 R / min, with a speed of over 100 m / s;

8. Using corrosion-resistant metal material or graphite material as sealing ring, it can be used for sealing of strong corrosive medium.

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