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Sealing assembly for rotary machine

A technology for sealing components and rotating machinery, which is applied to the sealing of engines, components of pumping devices for elastic fluids, and mechanical equipment. Sealing effect, small sealing space, effect of improving applicability

Pending Publication Date: 2019-11-15
CHINA UNITED GAS TURBINE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing seals require many stages, require a large sealing space, and have low applicability, and because of the small sealing gap, friction and wear are likely to occur, which affects the service life of the seal and reduces the sealing effect

Method used

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  • Sealing assembly for rotary machine
  • Sealing assembly for rotary machine

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Embodiment Construction

[0022] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. In describing the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "inner", "outer", "axial", "radial", "circumferential ” and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific configuration and operation, and therefore should not be construed as limiting the invention.

[0023] Such as Figure...

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Abstract

The invention discloses a sealing assembly for a rotary machine. The rotary machine comprises a stator and a rotor. The sealing assembly comprises a brush type sealing part, a honeycomb sealing part and a fingertip sealing part, the brush type sealing part, the honeycomb sealing part and the fingertip sealing part are suitable for being arranged on the stator, the brush type sealing part and the fingertip sealing part are arranged alternately in the axial direction of the rotor, the honeycomb sealing part is arranged between the brush type sealing part and the fingertip sealing part and is opposite to sealing teeth arranged on the surface of the rotor, and the honeycomb sealing part and the sealing teeth form labyrinth seal. The sealing assembly for the rotary machine has the advantages that the sealing effect is good, in addition, the service life is long, the required sealing space is small, and the applicability is improved.

Description

technical field [0001] The invention relates to the technical field of sealing, in particular to a sealing assembly for a rotary machine. Background technique [0002] In rotary machinery such as gas turbine compressors or turbines, it is usually necessary to seal the fluid to reduce leakage and ensure the normal operation of the rotary machinery. In the related art, the interstages and shaft ends of the gas turbine compressor or components in the turbine usually need to be provided with multi-stage seals to achieve the sealing effect through the processes of expansion, throttling and decompression. [0003] However, the existing seals require many stages, require a large sealing space, and have low applicability, and because the sealing gap is small, friction and wear are likely to occur, which affects the service life of the seal and reduces the sealing effect. Contents of the invention [0004] For this reason, the present invention proposes a sealing assembly for a ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/447F01D11/00F01D11/02F04D29/08F04D29/10
CPCF16J15/444F16J15/4476F01D11/003F01D11/02F04D29/083F04D29/102
Inventor 谢意
Owner CHINA UNITED GAS TURBINE TECH CO LTD
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