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Two-side sealing part

A technology of side seals and seal rings, which is applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve problems such as difficulty in achieving precision and sealing effects, and achieve the effect of enhanced viscosity, elasticity, and strong toughness

Inactive Publication Date: 2017-08-22
江苏海川卓越密封材料有限公司
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  • 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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  • Two-side sealing part

Examples

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Embodiment Construction

[0012] 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.

[0013] A double sided seal such as figure 1 As shown, it includes a housing 1, a rotating shaft 2, a first type ring 31, a second type 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 bet...

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Abstract

The invention discloses a two-side sealing part which comprises a first form ring (31) and a second form ring (41). The first form ring (31) comprises first H-shaped rings (32) which are arranged on a shell (1) in pairs. The second form ring (41) comprises second H-shaped rings (42). The first H-shaped rings (32) are installed on the shell (1). The second H-shaped rings (42) are installed on a rotating shaft. The first H-shaped rings (32) and the second H-shaped rings (42) are alternately arranged in the axial direction of the rotating shaft. The two-side 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 Applications(China)
IPC IPC(8): F16J15/40F16J15/3232
CPCF16J15/40F16J15/3232
Inventor 吴德斌
Owner 江苏海川卓越密封材料有限公司
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