Magnetic liquid sealing device used for sealing liquid medium

A magnetic liquid and sealing liquid technology, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of magnetic liquid performance degradation, sealing failure, etc.

Active Publication Date: 2021-06-08
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the related art, when the magnetic liquid seals the liquid medium, due to the instability at the contact interface between the two liquids, the magnetic liquid is easily miscible with the sealed liquid medium, resulting in seal failure
The environment of high pressure and high linear velocity will not only aggravate t...

Method used

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  • Magnetic liquid sealing device used for sealing liquid medium

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Embodiment Construction

[0027] 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.

[0028] A magnetic liquid sealing device for sealing a liquid medium according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0029] like figure 1 As shown, a magnetic liquid sealing device 100 for sealing liquid media according to an embodiment of the present invention includes a housing 1 , a shaft 2 , a magnetic liquid sealing assembly 3 , a heat conducting gasket 4 , a resistance wire 5 and a condensation pipe 8 .

[0030] The housing 1 has a chamber 11 . Specifically, such as figure 1 As shown, the left end of the housing 1 has a flange part, and the flange part is provided with a plurality ...

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Abstract

The invention discloses a magnetic liquid sealing device used for sealing a liquid medium. The magnetic liquid sealing device used for sealing the liquid medium comprises a shell, a shaft, a magnetic liquid sealing assembly, a heat conduction gasket and a resistance wire. The shell is provided with a cavity, the shaft is pivotally arranged in the cavity, at least one end of the shaft extends out of the cavity, the magnetic liquid sealing assembly is located in the cavity and is arranged on the rotating shaft in a sleeving manner, the heat conduction gasket is arranged in the cavity and is arranged on the shaft in a sleeving manner, the inner circumferential face of the heat conduction gasket and the shaft are arranged at intervals in the radial direction of the shaft, the magnetic liquid sealing assembly and the heat conduction gasket are arranged at intervals in the axial direction of the shaft, and the resistance wire is arranged in the heat conduction gasket, so that sealed liquid flowing into space between the heat conduction gasket and the shaft is gasified. According to the magnetic liquid sealing device used for sealing the liquid medium, the structure is simple, the sealed liquid and magnetic liquid can be isolated, and the service life of the magnetic liquid sealing device is prolonged.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering sealing, and in particular relates to a magnetic liquid sealing device for sealing a liquid medium. Background technique [0002] Magnetic liquid sealing technology has the advantages of zero leakage, no wear, long life and simple structure, so it is used by more and more industries. [0003] In the related art, when the magnetic liquid seals the liquid medium, due to the instability at the contact interface between the two liquids, the magnetic liquid is easily miscible with the sealed liquid medium, resulting in failure of the seal. The environment of high pressure and high linear velocity will not only aggravate the instability of the liquid-liquid interface between the magnetic liquid and the sealed liquid medium, but also the sealing liquid and the sealed liquid are prone to emulsification in the high pressure and high linear velocity environment, resulting in a decrease in the...

Claims

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Application Information

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IPC IPC(8): F16J15/40
CPCF16J15/40F16J15/3288F16J15/403F16J15/43
Inventor 李德才刘霄
Owner TSINGHUA UNIV
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