Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sealing device combined with magnetic powder and magnetic liquid

A magnetic liquid and sealing device technology, applied in the magnetic liquid combined sealing device and magnetic powder field, can solve the problems of changing the high pressure resistance of the sealing medium and the sealing device cannot be realized, and achieve the effect of strong sealing adaptability and simple operation.

Active Publication Date: 2020-08-21
TSINGHUA UNIV
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the sealing device in the related art cannot change the state of the sealing medium according to the sealing needs to meet the requirements of high pressure resistance or zero leakage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sealing device combined with magnetic powder and magnetic liquid
  • Sealing device combined with magnetic powder and magnetic liquid
  • Sealing device combined with magnetic powder and magnetic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0026] The sealing device using magnetic powder in the related art cannot achieve zero leakage of the sealed substance, and the sealing device using magnetic liquid in the related art cannot withstand a large pressure difference. In short, there is currently no sealing device that can switch the sealing medium between two states to meet the requirements of zero leakage and high pressure resistance.

[0027] In order to solve the above-mentioned technical problems in related technologies, the present application proposes a combined magnet...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a sealing device combined with magnetic powder and magnetic liquid. The sealing device combined with magnetic powder and magnetic liquid comprises: a casing forming a containing chamber; a rotating shaft rotatably arranged in the containing chamber, on which a first The blind hole and the second blind hole, the first through hole and the second through hole; the first pole piece is arranged on the outside of the rotating shaft, and a plurality of first pole teeth are arranged on the inner peripheral wall of the first pole piece, and each first Magnetic powder is provided between the tooth top surface of the pole tooth and the outer peripheral surface of the rotating shaft; the second pole shoe is sleeved on the outside of the rotating shaft, and a plurality of second pole teeth are arranged on the inner peripheral wall of the second pole shoe, each second Magnetic powder is provided between the tooth top surface of the pole teeth and the outer peripheral surface of the rotating shaft; the permanent magnet is sleeved on the rotating shaft and is located between the first pole piece and the second pole piece; One side of a pole piece; the temperature sensor is arranged on the rotating shaft. According to the magnetic powder and magnetic liquid combined sealing device of the present invention, the requirements of zero leakage and high pressure resistance can be met.

Description

technical field [0001] The invention relates to the technical field of mechanical engineering sealing, in particular to a sealing device combining magnetic powder and magnetic liquid. Background technique [0002] In the related art, the magnetic powder is a powder composed of nanoparticles wrapped by a surfactant, which exhibits superparamagnetism under a magnetic field. The sealing device using magnetic powder can withstand a large pressure difference and has a high pressure resistance, but it cannot achieve zero leakage of the sealed substance (zero leakage here means that the leakage rate is lower than 10 -11 cm 3 / s). The magnetic liquid is a stable colloid formed by uniformly dispersing nanoparticles wrapped by surfactants into the base carrier liquid. The sealing device using magnetic fluid can realize zero leakage of the sealing device, but the pressure difference it can withstand is small. [0003] However, the sealing device in the related art cannot change the...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/43F16J15/53
CPCF16J15/43F16J15/54F16C33/765
Inventor 李德才李钲皓刘霄杨纪显陈思宇李倩孙睿
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com