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Peristaltic pumping circulation cooling type magnetic liquid sealing device

A magnetic liquid, circulating cooling technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of magnetic liquid heating, failure, shortening of the service life of the seal, etc., to achieve the effect of high cooling efficiency

Inactive Publication Date: 2015-06-10
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved in the present invention is that when the existing magnetic liquid rotary sealing device works in the environment of large diameter and high linear velocity, due to the large heat generation of the magnetic liquid in the sealing gap, it is easy to shorten the service life of the seal or even fail

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  • Peristaltic pumping circulation cooling type magnetic liquid sealing device
  • Peristaltic pumping circulation cooling type magnetic liquid sealing device

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Embodiment Construction

[0027] The present invention will be further described with accompanying drawing as specific embodiment:

[0028] Peristaltic pumping circulating cooling magnetic liquid sealing device, such as figure 1 , the sealing device includes: a rotating shaft 1, a casing 2, a left end face sealing ring 3, a first sealing ring 4 of the left pole shoe, a second sealing ring 5 of the left pole shoe, a third sealing ring 6 of the left pole shoe, a permanent magnet 7, a right The fourth sealing ring 8 of the pole shoe, the third sealing ring 9 of the right pole shoe, the second sealing ring 10 of the right pole shoe, the first sealing ring 11 of the right pole shoe, the end cover 12, the magnetic liquid 13, the eighth pipe 14 of the peristaltic pump, Peristaltic pump seventh pipeline 15, peristaltic pump sixth pipeline 16, peristaltic pump fifth pipeline 17, right pole shoe 18, left pole shoe 19, peristaltic pump fourth pipeline 20, peristaltic pump third pipeline 21, peristaltic pump secon...

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Abstract

The invention discloses a peristaltic pumping circulation cooling type magnetic liquid sealing device and belongs to the field of sealing of mechanical engineering. The peristaltic pumping circulation cooling type magnetic liquid sealing device successively solves the problem that because the heating amount of magnetic liquid in a sealing gap is large when linear speed of an existing magnetic liquid sealing device is higher than 20m / s, service life is shortened, and the magnetic liquid sealing device even loses efficacy. The device is composed of a magnetic liquid sealing assembly, a peristaltic pump, a cooling system and a peristaltic pump pipeline in a combined mode. Magnetic liquid below each pole tooth of the device circulates outside through the peristaltic pump, not only is the pressure resistance capacity of the magnetic liquid sealing device not influenced, but also the cooling efficiency becomes maximum because the magnetic liquid is directly pumped to the outside to be cooled, and the magnetic liquid below each pole tooth can be fully cooled.

Description

technical field [0001] The invention belongs to the field of mechanical engineering sealing. Background technique [0002] Magnetic liquid seals are used in large-diameter, high-line-velocity sealing environments. The magnetic liquid in the seal gap often fails due to high temperature. Internationally, the cooling of magnetic liquid seals under large-diameter, high-line-velocity conditions has always been is a puzzle. Therefore, it is very important to improve and develop the cooling circulation device of the magnetic liquid seal, which directly affects the service life of the magnetic liquid seal device. [0003] The most widespread cooling method now has the cooling method of processing a water-cooled groove in the pole piece, as described in reference 1 (the patent publication number is CN 103574041A); there is a cooling method of installing a water jacket on the outer circumference of the pole piece, as described in the reference 2 (publication number is the patent of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/43
Inventor 李德才姚杰
Owner BEIJING JIAOTONG UNIV
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