Energy storage sealing structure and dynamic sealing device for high-pressure medium easy to vaporize

Abstract

The invention relates to the technical field of sealing, in particular to an energy storage sealing structure and a dynamic sealing device for a high-pressure medium easy to vaporize. The energy storage sealing structure comprises at least one elastic shell, and the elastic shell is provided with a pair of elastic arms arranged oppositely; one ends of the elastic arms are connected, and the other ends of the elastic arms form an opening allowing a medium to enter a space between the elastic arms, and each elastic arm comprises a first supporting arm and a second supporting arm which are arranged at an included angle; a first included angle between the first supporting arm and the axis of the elastic shell is larger than a second included angle between the second supporting arm and the axis of the elastic shell; and at least one energy storage elastic element is arranged in the space of the elastic shell, used for supporting the elastic shell, and deformed to store energy under the action of pressure. The energy storage sealing structure provided by the invention is simple in structure and good in sealing effect, and the dynamic sealing device for the high-pressure medium easy to vaporize is provided.

Description

[0001] Information about divisional applications [0002] This case is a divisional application. The parent case of this divisional case is an invention patent application with an application date of December 27, 2019, an application number of 2019113899969, and an invention title of "an energy storage sealing structure and a dynamic sealing device for high-pressure easily vaporized medium". technical field [0003] The invention relates to the field of sealing technology, in particular to an energy storage sealing structure and a dynamic sealing device for high-pressure easily vaporized medium. Background technique [0004] As an important part of the liquid oxygen methane engine, the liquid oxygen pump is used to deliver the low-temperature liquid oxygen required for the engine to work. The liquid oxygen pump is next to the methane pump, and a sealing device is usually set between the liquid oxygen pump and the methane pump in the liquid rocket engine turbo pump to preven...

AI Technical Summary

Problems solved by technology

[0008] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the high-pressure dynamic sealing device in the prior art is complicated in structure and easily fails to cause medium leakage, thereby providing an energy-storage sealing structure with a simple structure and good sealing effect and used for high-pressure Dynamic sealing device for easily vaporized medium

[0009] Another technical problem to be solved by the present invention is to overcome the defects in the prior art that the static ring is easy to collide with the moving ring after wear and tear, which affects the sealing effect

[0010] Another technical problem to be solved by the present invention is to overcome the defect that the sealing end faces of the moving ring and the static ring are unstable due to friction before and after work, resulting in poor sealing effect

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