A type f liquid labyrinth seal

A labyrinth seal and liquid seal technology, applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve the problems that are difficult to achieve precision and sealing effects, and achieve the effect of enhanced viscosity and elasticity, and strong toughness

Active Publication Date: 2018-11-20
江苏海川卓越密封材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the above-mentioned characteristics of the labyrinth seal, it is difficult to achieve the required precision and sealing effect when it requires high-precision gas sealing.

Method used

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  • A type f liquid labyrinth seal

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Embodiment Construction

[0011] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention All modifications of the valence form fall within the scope defined by the appended claims of the present application.

[0012] A type F liquid labyrinth seal, such as figure 1 As shown, it includes a housing 1, a rotating shaft 2, an F-ring 31, a dry-shaped ring 41, an outer seal assembly and an inner seal assembly, the inner seal assembly and the outer seal assembly are arranged in the housing 1 from the inside to the outside, and the The inner seal assembly and the outer seal assembly are located between the rotating shaft 2 and the outer casing 1; a liquid labyrinth area is formed ...

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Abstract

The invention discloses an F type fluid labyrinth sealing part. The F type fluid labyrinth sealing part comprises a housing (1), a rotating shaft (2), an F-shaped ring (31), and a ring (4) which is in a shape of a Chinese character 'Gan (dry)', an outer sealing assembly and an inner sealing assembly, wherein the inner sealing assembly and the outer sealing assembly are arranged in the housing (1) from inside to outside; a fluid labyrinth area is formed among the housing (1), the rotating shaft (2), the outer sealing assembly and the inner sealing assembly; the fluid labyrinth area is filled with fluid sealing glue through which a first sealing ring (32) and a second sealing ring (42) which are adjacently arranged can be subjected to glue sealing. The F type fluid labyrinth sealing part is simple in structure, and good in sealing effect.

Description

technical field [0001] The invention relates to a labyrinth seal, in particular to a liquid labyrinth seal for shaft ends and stages of steam turbines, gas turbines, compressors, blowers, Background technique [0002] The labyrinth seal is to set a number of annular sealing teeth arranged in sequence around the rotating shaft. A series of interception gaps and expansion cavities are formed between the teeth. Purpose. Because there is a gap between the labyrinth-sealed rotor and the casing, there is no solid contact, no lubrication is required, and thermal expansion is allowed, so it is suitable for high temperature, high pressure, and high speed frequency occasions. However, due to the above-mentioned characteristics of the labyrinth seal, it is difficult to achieve the required precision and sealing effect when it requires high-precision gas sealing. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/447F16J15/40
CPCF16J15/40F16J15/4472F16J15/4476
Inventor 吴德斌
Owner 江苏海川卓越密封材料有限公司
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