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A T-shaped liquid labyrinth seal

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

Active Publication Date: 2019-02-26
江苏海川卓越密封材料有限公司
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  • Abstract
  • Description
  • Claims
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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 T-shaped liquid labyrinth seal

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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 T-shaped liquid labyrinth seal, such as figure 1 As shown, it includes a housing 1, a rotating shaft 2, a first T-ring 31, a second T-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 inside to outside, And 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 between...

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Abstract

The invention discloses a T-shaped liquid labyrinth sealing element. The sealing element comprises a casing (1), a rotating shaft (2), a first T-shaped ring (31), a second T-shaped ring (41), an outer sealing component and an inner sealing component, wherein the inner sealing component and the outer sealing component are arranged in the casing (1) from inside to outside; a liquid labyrinth region is formed among the casing (1), the rotating shaft (2), the outer sealing component and the inner sealing component and is filled with a liquid sealant, so that sealant seals are formed by first sealing rings (32) and second sealing rings (42) which are adjacent. The T-shaped liquid labyrinth seal 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): F16J15/3208F16J15/447F16J15/40
CPCF16J15/3208F16J15/40F16J15/4474
Inventor 吴德斌
Owner 江苏海川卓越密封材料有限公司
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