Anti-loosening sealing cover for pressure vessel for aerospace dynamic test

Abstract

The invention discloses an anti-loosening sealing cover for a pressure vessel for an aerospace dynamic test, and relates to the technical field of sealing covers. The anti-loosening sealing cover comprises a vessel body, an inner sealing cover and an outer sealing cover; and the bottom of the inner sealing cover is in pressing connection with the top of the vessel body, the top of the periphery ofthe vessel body is fixedly connected with threaded seats, the periphery of the inner sealing cover is fixedly connected with bolt sleeves, and the bolt sleeves and the inner surfaces of the threadedseats are in threaded connection with bolts. According to the anti-loosening sealing cover for the pressure vessel for the aerospace dynamic test, the match among the bolts, the threaded seats and thebolt sleeves is arranged, so that the inner sealing cover can be pressed on the top of the vessel body for primary sealing, then the outer sealing cover is matched with external threaded sleeves foruse, so that a secondary sealing effect can be achieved, and the sealing performance is improved; and through the match between gear rings and gear caps, the outer sealing cover can synchronously drive the four bolts to rotate when being screwed, and the four bolts do not need to be manually tightened one by one, so that a large amount of time is saved, and the use is convenient.

Description

technical field [0001] The invention relates to the technical field of sealing caps, in particular to an anti-loosening sealing cap based on a pressure vessel for aerospace power tests. Background technique [0002] A pressure vessel is a closed device that holds gas or liquid and carries a certain pressure. In order to more effectively implement scientific management and safety supervision and inspection, my country's "Pressure Vessel Safety Supervision Regulations" divides pressure vessels into three categories according to working pressure, medium hazards and their role in production, and the pressure of each category Containers have different regulations in the design, manufacturing process, and inspection items, contents and methods. The pressure vessel has a wide range of uses, and it has an important position and role in many sectors such as industry, civil, military, and many fields of scientific research. Among them, the most used ones are in the chemical industry ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a kind of anti-loosening sealing cover based on the pressure vessel used for aerospace power test, which solves the problem that the sealing cover of the existing pressure vessel is generally just a simple layer of sealing cover pressed on the top of the pressure vessel. It is fastened by bolts, but only one layer of sealing cover is provided. In the case of high air pressure and long-term use, there will still be leakage problems, and a small amount of slow leakage cannot be found in the first place.

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