Detachable ultrahigh pressure waterproof sealing ring

Abstract

The invention discloses a detachable ultrahigh pressure waterproof sealing ring, including a waterproof sealing ring which is of annular axisymmetric structure, the cross section of the waterproof sealing ring is shaped that a radial groove and a longitudinal groove are respectively formed in the top part and side part of the waterproof sealing ring, a radial O-shaped sealing ring is installed in the radial groove, and a longitudinal O-shaped sealing ring is installed in the longitudinal groove; the top surface of the waterproof sealing ring is a top radial sealing surface, the bottom part of the waterproof sealing ring is a bottom surface, one side of the waterproof sealing ring is an outer-side longitudinal sealing surface while the other side of the same serves as an inner press acting surface, and the bottom part of the inner press acting surface extends to form an arc surface. The detachable ultrahigh pressure waterproof sealing ring is compact and reasonable in structure, convenient to arrange and dismount, and capable of being used repeatedly; the waterproof sealing ring is an independent module, thus avoiding the complication or welding problem of an end part structure of a pressure barrel. The waterproof sealing ring is reasonable in structural stress distribution, is not high in requirement on material strength of manufacturing material, simple in processing technique, and can achieve reliable ultrahigh pressure sealing performance with lower project cost.

Description

technical field [0001] The invention relates to the technical field of high-pressure container end sealing, in particular to a detachable ultra-high pressure waterproof sealing ring suitable for the large opening sealing method, sealing structure form, and assembly tolerance zone of an ultra-high pressure pressure cylinder. Background technique [0002] The pressure cylinder is a kind of experimental equipment used to simulate the deep-sea high-pressure environment. In order to provide a stable external hydrostatic pressure for the test piece in the cylinder, the opening at the end of the cylinder needs to be effectively and reliably sealed against pressure, and the sealing method must also adapt to the pressure. The structural characteristics of the barrel itself and the need for frequent disassembly and assembly in daily use. [0003] When the pressure is not high, the pressure cylinder mostly adopts the flat sealing method of the butt flange and the sealing ring, and reli...

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Problems solved by technology

[0003] When the pressure is not high, the pressure cylinder mostly adopts the flat sealing method of the butt flange and the sealing ring, and relies on the split snap ring and locking bolts to ensure the compression of the sealing surface and the structural strength, but for the ultra-high pressure pressure cylinder, this mandatory The implementation of the sealing method becomes more difficult, and the flanges, snap rings, and bolts that meet the strength requirements are often too bulky, so the pressure-bearing structures at the ends usually adopt the combination of flat covers and shear blocks. Devices with sealing requirements under high internal pressure

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