Mechanical sealing 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 between the dynamic ring and the static ring.
Pending Publication Date: 2018-09-25
TSINGHUA UNIV
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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 between the dynamic ring and the static ring in view of the problem that the traditional mechanical seal cannot effectively understand the contact situation between the dynamic ring and the static ring
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[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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The invention provides a mechanical sealing device. The mechanical sealing device includes a movable ring and a stationary ring which sleeve a rotating shaft. The stationary ring includes a first endface. The movable ring includes a second end surface. The first end face and the second end face are opposite to each other. The first end face or the second end face is provided with spiral grooves.The first end face and / or the second end face are / is provided with friction structures which enable the movable ring and the stationary ring to generate acoustic emission signals when the movable ringand the stationary ring are in contact with each other. The stationary ring further includes a monitoring device for sensing the acoustic emission signals generated between the first end face and thesecond end face. Through the monitoring device, the contact condition between the movable ring and the stationary ring can be effectively monitored, and the monitoring accuracy is 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, which consist of a pair or several pairs of moving rings and static rings (both called seal rings) to form a relatively rotating end face friction pair. Since the gap between the moving ring and the static ring of the friction pair is very small, the dynamic sealing can be realized. 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] Ba...
Claims
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IPC IPC(8): F16J15/16G01N29/14
CPCF16J15/16G01N29/14G01N2291/014
Inventor 黄伟峰尹源刘向锋索双富刘莹王玉明王子羲李永健
Owner TSINGHUA UNIV