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Internally-pressed combined gasket

A technology of combining gaskets and O-rings, applied in the direction of engine sealing, flange connection, pipe/pipe joint/pipe fittings, etc., can solve problems such as ship fire, and achieve the effect of improving sealing effect and increasing system safety.

Pending Publication Date: 2021-08-10
中国船舶重工集团公司第七0三研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Emissions, leaks, and leaks are a common phenomenon in ship steam turbine oil systems. How to avoid the phenomenon of leaks and leaks has always been a key problem in the oil system. Leakage in the oil system will pose a safety hazard and easily cause ship fires.

Method used

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  • Internally-pressed combined gasket

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0013] to combine figure 1 , the internal pressure combined gasket of the present invention belongs to a general-purpose gasket, and does not need to be separately designed for installation; the O-ring 1 is installed in the skeleton 2, and the arc groove is cut in the skeleton 2 according to the diameter of the O-ring 1 to position the O-ring Ring 1 prevents O-ring 1 from moving in series. The end of the arc is rounded to prevent damage to O-ring 1 when the seal is under pressure. Skeleton 2 is made of metal skeleton. When pressing, it is sealed together with the O-ring 1 under force, which increases the redundancy of the seal and improves the safety of the seal.

[0014] The positioning is carried out by the external frame, and the O-ring deforms and seals first when the internal pressure composite gasket is stressed, and when the force reaches a certain level, the frame deforms under force and seals together with the O-ring.

[0015] Internal combination gaskets are also su...

Embodiment approach 2

[0017] When the framework is changed to non-metallic material, the upper and lower surfaces do not process sealing grooves. When the force is applied, the O-ring deforms and seals first. When the force reaches a certain level, the non-metallic framework deforms and seals together with the O-ring.

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Abstract

The invention provides an internally-pressed combined gasket. The combined gasket comprises a framework and an O-ring, wherein an arc groove for positioning the O-ring is cut in the inner side of the framework according to the diameter size of the O-ring, the O-ring is installed in the arc groove in the inner side of the framework, and a fillet for preventing the O-ring from being damaged during sealing and pressing is arranged at the end of the arc groove. The combined gasket is applied to hydraulic end face sealing, belongs to a universal gasket, can be installed without designing a special groove hole channel for the gasket, and improves the sealing effect and the system safety through two seals of the O-ring and the framework.

Description

technical field [0001] The invention relates to a sealing structure, in particular to a hydraulic end face sealing structure. Background technique [0002] Emissions, leaks, and leaks are common phenomena in marine turbine oil systems. How to avoid them has always been a key problem that plagues the oil system. Leakage in the oil system will pose safety hazards and easily cause ship fires. The pipelines of the oil system are complex, and are mainly connected by flanges and joints. Solving the sealing problem of the joints between flanges and joints can solve most of the problems of running, emitting, dripping and leaking. Contents of the invention [0003] The purpose of the present invention is to provide an internal pressure combined gasket that does not need to design a special groove for the gasket for installation, and can improve the sealing effect and increase the safety of the system. [0004] The purpose of the present invention is achieved like this: [0005] T...

Claims

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Application Information

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IPC IPC(8): F16J15/10F16J15/12F16L23/18
CPCF16J15/104F16J15/122F16L23/18
Inventor 梁小光王冲许学超李海龙崔秋雯
Owner 中国船舶重工集团公司第七0三研究所