Air inflation axial sealing device used in vacuum environment
A technology of axial sealing and vacuum environment, which is applied in the direction of engine sealing, measuring devices, aerodynamic tests, etc., can solve the problems of time-consuming and labor-intensive, reducing the service life of bellows, and the small adjustment distance of bellows, so as to reduce investment and The effect of operating cost, reducing labor intensity and improving replacement efficiency
Inactive Publication Date: 2016-06-22
中国空气动力研究与发展中心超高速空气动力研究所
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Abstract
The invention belongs to the field of hypersonic wind tunnels, and relates to an inflatable axial sealing device used in a vacuum environment, which includes an inflatable sealing ring, a sealing cylinder, an adapter sleeve, an inflating pipeline and an air compressor, wherein the inflatable sealing ring, the sealing The sealing cylinder body and the adapter sleeve have an axisymmetric structure; the inflatable sealing ring is installed in the groove of the adapter sleeve, and the inflatable interface of the inflatable sealing ring cooperates with the inflatable interface of the adapter sleeve; the sealing cylinder enters the adapter sleeve Inside, the sealing ring can fully contact the outer surface of the sealing cylinder after being inflated; the inflation pipe connects the air compressor and the inflation port of the inflatable sealing ring. The inflatable axial sealing device of the present invention solves the shortcomings of the bellows connection mode, reduces investment and operating costs, reduces labor intensity and difficulty in replacing pipeline equipment, improves the efficiency of pipeline equipment replacement, and obtains a good vibration isolation effect, which can be applied to Axial vacuum seal between pipeline equipment of different calibers.
Application Domain
Engine sealsAerodynamic testing
Technology Topic
Speed of soundElectrical and Electronics engineering +3
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PUM
Property | Measurement | Unit |
Roughness | <= 1.6 | µm |
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