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O-shaped sealing ring sealing pressure test method and its sealing device

A sealing ring and pressure test technology, which can be used in the direction of measuring the acceleration and deceleration rate of fluid and using liquid/vacuum for liquid tightness measurement. The effect of small pressing amount and simple structure

Inactive Publication Date: 2015-11-04
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is more complicated, inconvenient to operate, and wastes manpower and material resources

Method used

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  • O-shaped sealing ring sealing pressure test method and its sealing device
  • O-shaped sealing ring sealing pressure test method and its sealing device
  • O-shaped sealing ring sealing pressure test method and its sealing device

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Embodiment Construction

[0020] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0021] The present invention proposes a sealing and pressure testing method for an O-shaped sealing ring. Two O-ring grooves are arranged on the sealing surface of one side of the sealing joint surface, and a guide for the sealing joint surface is arranged between the two O-ring grooves in parallel. Injection pressure ring groove through; each O-ring groove is provided with an O-ring; a preset pressure (can be oil pressure, water pressure or air pressure, etc.) For a certain period of time, the sealing effect of the O-ring seals on both sides of the injection pressure ring groove is detected.

[0022] Such as Figure 1A , Figure 1B and figure 2 As shown, according to the above-mentioned pressure testing method, the present in...

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Abstract

The invention provides a sealing pressure test method for O-shaped seal rings and a sealing device for O-shaped seal rings. Two O-shaped ring grooves are arranged in a sealing surface on one side of a sealing bonding surface; an injection compressing ring groove communicated with the sealing bonding surface is parallelly arranged between the two O-shaped ring grooves; O-shaped seal rings are arranged in the O-shaped ring grooves; pressure is injected in the injection compressing ring grooves through pressurizing equipment, and pressure is maintained for a certain time, so that the sealing effect of the O-shaped seal rings on the two sides of the injection compressing ring grooves can be detected. According to the invention, the seal structure is changed, that is, one O-shaped seal ring is changed into two O-shaped seal rings, and the injection compressing ring groove is arranged between the two O-shaped seal rings, so that all that is needed is to slightly pressure the injection compressing ring groove regardless of a pressure vessel or a sealed cabin, furthermore, the operation is convenient, and the structure is simple.

Description

technical field [0001] The invention relates to a method and a device for detecting the sealing performance of a sealing member, in particular to a method for testing the sealing and pressure of an O-shaped sealing ring and a sealing device thereof. Background technique [0002] As the key equipment in the high-pressure process, high-pressure vessels or airtight chambers should have strict requirements on their materials, design, and manufacturing. Sealing design is one of the keys to the design of high-pressure vessels. Leakage or failure of the seal will cause the high-pressure vessel to fail to work normally and lose its high-pressure performance; in severe cases, it will cause corrosion or damage to the pressure vessel, and even cause property loss and personal injury. The O-ring is called the "King of Seals" and has many advantages: (1) The sealing part is simple in structure, compact in size, easy to install and disassemble, and light in weight; (2) It can be used unde...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26
Inventor 丁庆新串俊刚李小龙张仕民
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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