Vacuum helium leak detection device and sealed connection pipe thereof

Vacuum helium leak detection device and sealed connection pipe thereof

  • CN 105,240,636 A
  • Filed: 11/04/2015
  • Published: 01/13/2016
  • Est. Priority Date: 11/04/2015
  • Status: Active Application
First Claim
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1. a vacuum helium-leakage detecting apparatus sealed joint pipe, is characterized in that, comprising:

  • First erection joint assembly (6), mutually isolated first air ventilation passage (1) of inner formation and the second air ventilation passage (2), one end (11) of described first air ventilation passage be suitable for sealing be communicated with outside vacuum environment vacuumizing inflation recovering device fill return pipe road, described second air ventilation passage (2) is suitable for sealing to one end (11) corresponding one end of described first air ventilation passage and is communicated with gas leakage reclaim line;

    The flexible inner tube of mutual socket and flexible outer tube, be placed in described vacuum environment, described first erection joint assembly (6) is installed in one end of described flexible inner tube and flexible outer tube, described flexible inner tube seals with the other end (12) of described first air ventilation passage and is communicated with, leave gap between described flexible inner tube and flexible outer tube to form gas recovery approach (4), one end (41) of described gas recovery approach seals with the other end (22) of described second air ventilation passage and is communicated with;

    Second erection joint assembly (7), be installed on described flexible inner tube and flexible outer tube the other end and by gas recovery approach (4) shutoff between the flexible outer tube of this end and flexible inner tube, described second erection joint assembly (7) inside forms the 3rd air ventilation passage (5), one end (51) of described 3rd air ventilation passage is suitable for sealing the other end being communicated with described flexible inner tube, and the other end is suitable for sealing the examined workpiece being communicated with and being placed in same vacuum environment.

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