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Magnetic liquid sealing starting system and starting method

A technology of magnetic fluid and starting system, which is applied in the direction of engine sealing, engine components, torque pulsation control, etc., can solve the problems of loss of magnetic fluid, decrease of sealing ability of magnetic fluid sealing device, unstable vibration of magnetic fluid sealing device, etc.

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

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Problems solved by technology

[0003] In the related art, when the seal is connected to the motor for start-up, unstable vibration occurs inside the magnetic liquid sealing device, resulting in the loss of magnetic liquid in the sealing gap of the magnetic liquid sealing device, resulting in a decrease in the sealing ability of the magnetic liquid sealing device or even failure

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  • Magnetic liquid sealing starting system and starting method
  • Magnetic liquid sealing starting system and starting method
  • Magnetic liquid sealing starting system and starting method

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Embodiment Construction

[0024] 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.

[0025] Refer to the attached figure 1 A magnetic liquid seal starting system according to an embodiment of the present invention will be described.

[0026] Such as figure 1 As shown, the magnetic liquid seal starting system according to the embodiment of the present invention includes a magnetic liquid seal assembly 4 , a motor 2 , a rotational speed sensor 3 and a frequency converter 1 .

[0027] The motor 2 is connected with the magnetic liquid seal assembly 4 for starting the magnetic liquid seal assembly 4 . Specifically, the motor 2 is connected to the rotating shaft of the magnetic liquid seal assembly 4 , and the motor 2 drives the rotating shaft of th...

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Abstract

The invention discloses magnetic liquid sealing starting system and starting method. The magnetic liquid sealing starting system comprises a magnetic liquid sealing assembly, a motor, a rotating speed sensor and a frequency converter, wherein, the motor is connected with the magnetic liquid sealing assembly and used for starting the magnetic liquid sealing assembly, the rotating speed sensor detects the rotating speed of the motor, and the frequency converter is connected with the motor, so that when the motor reaches a preset rotating speed, the frequency converter is switched from the torque control mode to the rotating speed control mode. The magnetic liquid sealing starting system has the advantages of being simple in structure, convenient in use, stable in starting and the like.

Description

technical field [0001] The present invention mainly relates to the field of sealing starting system and its control, in particular to a magnetic liquid sealing starting system and starting method. Background technique [0002] Magnetic liquid seals have the advantages of low friction, zero leakage, and long life, and are widely used in important occasions such as military industry, aerospace, and deep diving. [0003] In related technologies, when the seal is connected to the motor for start-up, unstable vibration occurs inside the magnetic liquid sealing device, resulting in the loss of magnetic liquid in the sealing gap of the magnetic liquid sealing device, resulting in a decrease in the sealing ability of the magnetic liquid sealing device or even failure. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. [0005] For this reason, the embodiment of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/43H02P6/10
CPCF16J15/43H02P6/10
Inventor 李德才李振坤
Owner TSINGHUA UNIV
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