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Airtight leak detection test device and test method adopting same

A test device and leak detection technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum degree, and by measuring the increase and deceleration rate of fluid, etc., can solve the problem of single shaft diameter of single end mechanical seal

Inactive Publication Date: 2019-07-12
XIAN YONGHUA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of airtight leak test device and its test method, which solves the problem of single shaft diameter of the single-end mechanical seal tested by ordinary airtight leak test device, and has the advantages of simple structure, flexible installation and easy disassembly. Advantages of convenience and versatility

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  • Airtight leak detection test device and test method adopting same
  • Airtight leak detection test device and test method adopting same
  • Airtight leak detection test device and test method adopting same

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] Such as figure 1 and 2 As shown, an airtight leak testing device includes a cavity 1 , a shaft 2 , a positioning sleeve 3 , a base 4 , and a cavity gland 8 arranged concentrically. The cavity 1 is fixedly installed on the base 4 by bolts, the shaft 2 is fixedly installed in the cavity 1, and the positioning sleeve 3 is detachably connected in the cavity 1 and is close to the The opening end of the cavity 1 is preferably that the positioning sleeve 3 is installed in the cavity 1 with a clearance fit and is close to the opening end of the cavity 1 . The cavity gland 8 is fixedly installed on the open end of the cavity 1 by bolts.

[0035] The airtight leak testing device also includes a fixing plate bolt 11 , a fixing plate 10 , an air inlet 5 and a single-end mechanical seal 14 . The shaft 2 passes through the positioning sleeve 3, one end of the sh...

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Abstract

The invention relates to the field of mechanical sealing, in particular to an airtight leak detection test device and a test method adopting the same. The device comprises a cavity, a shaft, a positioning sleeve and a cavity gland which are coaxially arranged, and further comprises a fixing plate bolt, a fixing plate and a single-end-face mechanical sealing piece; the shaft penetrates through thepositioning sleeve, one end of the shaft is fixedly installed in the cavity, and the other end of the shaft is connected with the single-end-face mechanical sealing piece. The single-end-face mechanical sealing piece is connected with the fixing plate through the fixing plate bolt, and the fixing plate is slidably connected with the cavity gland. The problem that the shaft diameter of a single-end-face mechanical sealing piece tested by a common airtight leak detection test device is single is solved, and the airtight leak detection test device has the advantages of being simple in structure,flexible to install, convenient to disassemble and high in universality.

Description

technical field [0001] The invention relates to the field of mechanical seals, in particular to an airtight leak detection test device and a test method thereof. Background technique [0002] A mechanical seal refers to a device that prevents fluid leakage by at least one pair of end faces perpendicular to the axis of rotation, under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, and the cooperation of the auxiliary seal to keep fit and slide relative to each other. [0003] The single-end mechanical seal is a mechanical seal composed of a pair of sealing end faces. It has the characteristics of simple sealing structure, easy manufacture and installation. It is generally used in situations where the medium itself has good lubricity and a small amount of leakage is allowed. It is the most commonly used type of mechanical seal. It is not easy to use when the medium is toxic, flammable, explosive, and there are strict requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 申永峰
Owner XIAN YONGHUA GROUP