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Mechanical seal device

A technology of mechanical sealing device and monitoring device, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problem of inability to effectively understand the contact situation of friction pairs

Pending Publication Date: 2018-09-25
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a mechanical seal device that can effectively understand the contact situation of the friction pair in view of the problem that the traditional mechanical seal cannot effectively understand the contact situation of the friction pair

Method used

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Embodiment Construction

[0030] In order to make the purpose, technical solution and technical effect of the present invention clearer, specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] See Figure 1-3 , a mechanical seal device 10 provided by an embodiment of the present invention. The stationary ring 200 includes a first end surface 210 , and the moving ring 400 includes a second end surface 410 . The first end surface 210 is arranged in contact with the second end surface 410 . The first end surface 210 or the second end surface 410 is provided with a spiral groove 411 . The mechanical seal device 10 further includes a monitoring device 100 for sensing the acoustic emission signal generated between the first end surface 210 and the second end surface 410 .

[0032] When...

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PUM

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Abstract

The invention provides a mechanical seal device. The mechanical seal device comprises a movable ring and a stationary ring which sleeve a rotary shaft. The stationary ring comprises a first end face.The movable ring comprises a second end face. The first end face is in contact with the second end face. The first end face or the second end face is provided with a spiral groove. The mechanical sealdevice further comprises a monitoring device for sensing a sound transmission signal produced between the first end face and the second end face. The contact situation of the movable ring and the stationary ring can be effectively monitored through the monitoring device, and the monitoring accuracy can be improved.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a mechanical sealing device. Background technique [0002] Mechanical seals are generally used as shaft end seals for rotating mechanical equipment. It consists of a pair or several pairs of moving rings and static rings (both called sealing rings) that form a relatively rotating end face friction pair. The gap between the friction pairs is small, so that the dynamic seal be achieved. In addition, static or fretting leakage paths are blocked by secondary seals. [0003] As a key shaft end sealing element, the failure of the mechanical seal may cause serious economic losses and even casualties. Traditional mechanical seals cannot effectively understand the contact conditions of the friction pair during work, and cannot promptly remedy the initial failure of the friction pair, resulting in greater losses. Contents of the invention [0004] Based on this, it is necessary to provide a mec...

Claims

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Application Information

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IPC IPC(8): F16J15/16G01N29/14
CPCF16J15/16G01N29/14G01N2291/014
Inventor 黄伟峰尹源刘向锋王玉明刘莹樊稳婧丛国辉张翊勋罗志远
Owner TSINGHUA UNIV