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How to classify the structure type of labyrinth seal

Release time:

2019-04-26 12:30

Source:

How to classify the structure type of labyrinth seal?
Labyrinth seals (Labyrinth seals) are a common type of seal in industry. The main working environment includes high temperature, high pressure, and high rotation frequency. They are widely used in the shaft ends and stages of steam turbines, gas turbines, compressors, blowers, etc. Seal.
Compared with other dynamic seals, labyrinth seals have the advantages of simple structure, strong adaptability to media, and long service life, so they have been widely used.
Labyrinth seals according to different standards we can have different classification, labyrinth seals commonly used in engineering have three simple structure types, namely straight-through seals, the wrong tooth type seals and ladder type seals.
Among them, the straight-through labyrinth seal is famous for its simple structure, reliable operation and good performance advantages. It has been widely used in several different industries such as mechanical engineering, power transmission and chemical industry), and can also be divided into Single-stage labyrinth seals, two-stage labyrinth seals and multi-stage labyrinth seals.
If the tooth structure of the seal is different, the labyrinth seal can also be divided into two categories: sealing plate (gasket) and sealing ring!
The structure type of the labyrinth seal has a certain basic sealing type, for different seal structure type and fluid flow direction and tooth type and other factors have a certain influence on the sealing effect.
We can improve the sealing effect by changing the shape of the labyrinth, the direction angle of the teeth and other geometric factors! So as to achieve an effective "sealing effect".

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