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Ladder Cooling Reactor Magnetic Liquid Sealing Device

A magnetic liquid and sealing device technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of easy failure and short service life of magnetic liquid seals, and achieve the effect of improving cooling efficiency, reducing space temperature, and reducing liquefaction

Inactive Publication Date: 2018-02-16
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is that when the existing magnetic liquid sealing device is used on the reaction kettle, the organic solvent vapor in the reaction kettle has a corrosive effect on the magnetic liquid, resulting in a short service life and easy failure of the magnetic liquid seal

Method used

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  • Ladder Cooling Reactor Magnetic Liquid Sealing Device
  • Ladder Cooling Reactor Magnetic Liquid Sealing Device
  • Ladder Cooling Reactor Magnetic Liquid Sealing Device

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Embodiment Construction

[0014] The present invention will be further described with accompanying drawing as specific embodiment:

[0015] A magnetic liquid sealing device suitable for reactors such as figure 1 : Housing 1, moving ring 2, static ring first sealing ring 3, static ring 4, moving ring sealing ring 5, static ring second sealing ring 6, first pole shoe first sealing ring 7, first pole shoe 8, First pole shoe, second seal ring 9, permanent magnet 10, second pole shoe first seal ring 11, second pole shoe 12, second pole shoe second seal ring 13, upper end cover 14, magnetic fluid 15, rotary shaft 16.

[0016] The connection between the various parts constituting the device: the moving ring sealing ring 5 is installed in the inner circular groove of the moving ring 2 to form a moving ring with a sealing ring; the first sealing ring 3 of the static ring, the second sealing ring of the static ring The second sealing ring 6 is installed in the outer circular groove of the static ring 4 to form...

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Abstract

The invention provides a step-cooling magnetic liquid sealing device for a reactor and belongs to the field of mechanical engineering sealing. The problem that when an existing magnetic liquid sealing device is used on a reactor, the sealing device is short in service life and prone to failure due to the corrosion effect of organic solvent vapor in the reactor on magnetic liquid is solved. The step-cooling magnetic liquid sealing device is composed of a magnetic liquid sealing assembly, a movable ring (2) and a fixed ring (4). When the step-cooling magnetic liquid sealing device is applied to reactor sealing, the movable ring (2) is placed in a pyramid mode with the large end face facing downward, the fixed ring (4) is placed in an inverted-funnel mode with the large end face facing upward, the movable ring (2) and the fixed ring (4) form a stepping labyrinth, and liquidation of organic solvent vapor and decrease of space temperature between the fixed ring (4) and pole shoes are facilitated; and the upper end face of the fixed ring (4) inclines towards a rotary shaft (16), the lower end face of the first pole shoe (8) is in an inverted-T shape, and fixed ring cooling liquid is 5-10 DEG C lower than the pole shoes in temperature. According to the step-cooling magnetic liquid sealing device, the problem that the sealing device is short in service life due to the corrosion effect of the organic solvent vapor on the magnetic liquid is solved.

Description

technical field [0001] The invention belongs to the field of mechanical engineering sealing and is suitable for magnetic liquid sealing of reaction kettles. Background technique [0002] Magnetic liquid seals are widely used due to their advantages of zero leakage, long life, and low friction. When used in a reactor, due to the corrosive effect of the organic solvent vapor in the reactor on the magnetic liquid, the sealing device has a short life and is prone to failure; at the same time, because the reactor is a high-temperature space, the pole shoe has a cooling device, the temperature is low, and the organic Solvent vapor is easy to liquefy on the pole piece, which accelerates the failure of the magnetic liquid and leads to the failure of the seal. Existing magnetic liquid sealing device such as a magnetic liquid rotary sealing device announced by application publication number CN102182830A, said device is provided with a labyrinth spiral sealing groove on the inner hole...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/43
CPCF16J15/43
Inventor 李德才喻峻
Owner BEIJING JIAOTONG UNIV
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