Multi-stage compression rate adjustable static sealing test experiment device

A technology for testing experiments and compressibility, which is applied in machine sealing ring testing, liquid tightness measurement using liquid/vacuum degree, and detecting the appearance of fluid at the leakage point, etc. It can solve the problems of leakage measurement accuracy, single test function, Increase the cost and other issues to achieve the effects of leakage detection and measurement, unique leakage channel, and reduced active area

Active Publication Date: 2019-09-24
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing sealing ring sealing performance test device has the following deficiencies: 1. The test function is single: it can only perform performance testing for a specific size sealing ring. If the size is changed, the test device or a certain part in the test device needs to be replaced. Increase the cost; only a single sealing ring can be tested, and the sealing performance of multi-stage sealing forms such as double-channel O-rings cannot be tested at the same time; 2. The accuracy of leakage measurement needs to be improved: it cannot be guaranteed that the leakage channel is only at the test sealing ring

Method used

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  • Multi-stage compression rate adjustable static sealing test experiment device
  • Multi-stage compression rate adjustable static sealing test experiment device

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples (illustrated with an O-ring as an example), but the embodiment of the present invention is not limited to this one.

[0022] Such as figure 1 and figure 2 As shown, a multi-stage compressibility adjustable static sealing test experimental device includes an experimental box 3 and a sealing end cover 2, the experimental box 3 is a cylindrical rotary pressure vessel, the cavity is filled with sealing gas, and the sealing end cover 2 It includes a cylindrical cover and a conical boss on the bottom of the cover. The top of the experimental box 3 is provided with a hole matching the boss, and the boss is inserted into the hole. The cover is fixedly connected to the experimental box 3 by screws. top surface.

[0023] Preferably, there is an outer seal 10 between the experimental box body 3 and the cover, and the outer seal 10 is a combined seal of an O...

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Abstract

The invention discloses a multi-stage compression rate adjustable static sealing test experiment device. The device comprises a leak detection port, a sealing end cover, an experimental box body, a medium inlet, a medium outlet, a test sealing ring 1, a test sealing ring 2, a test sealing ring 3, a gas sensor, and external seal. The experimental box body is fixed on a workbench, and the sealing end cover is fixedly connected with the experimental box body. A plurality of sealing grooves are arranged at a conical surface of the sealing end cover to achieve a sealing performance test of single channel sealing rings with different outer ring diameters and cross-sectional dimensions, and multi-stage sealing of two-channel and multi-channel O-shaped rings. A gasket between the sealing end cover and the box body is replaced to adjust a distance between the two so as to realize sealing performance detection under different pre-compression ratios.

Description

technical field [0001] The invention belongs to the technical field of static sealing, in particular to a multi-stage compressibility-adjustable static sealing test experimental device. Background technique [0002] Static seals occupy an important position in the sealing field. Among them, sealing rings (especially rubber O-rings) are widely used in industrial equipment or components such as pressure vessels, pipelines, and valves due to their good sealing performance, simple structure, convenient manufacture, and low cost. Performance and longevity have a significant impact on the proper operation of equipment and components. [0003] Studies have shown that the sealing performance of the sealing ring is related to the material properties of the sealing ring, the size of the sealing ring, the amount of pre-compression, the sealing form of the sealing ring, etc., and the selection and optimization of the above parameters are inseparable from the testing of the sealing perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/04G01M13/005
CPCG01M3/04G01M13/005
Inventor 郭飞吴凡项冲米尔阿地力江·阿木提黄毅杰贾晓红王玉明索双富李永健黄伟峰
Owner TSINGHUA UNIV
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