JPS6459027A - Leak inspection device - Google Patents
Leak inspection deviceInfo
- Publication number
- JPS6459027A JPS6459027A JP21527387A JP21527387A JPS6459027A JP S6459027 A JPS6459027 A JP S6459027A JP 21527387 A JP21527387 A JP 21527387A JP 21527387 A JP21527387 A JP 21527387A JP S6459027 A JPS6459027 A JP S6459027A
- Authority
- JP
- Japan
- Prior art keywords
- air
- liquid
- liquid chamber
- inspected
- piping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
PURPOSE:To detect a defect in the sealing of a body to be inspected, by providing a liquid chamber for gas leak detection and detecting an air bubble produced in the liquid photoelectrically. CONSTITUTION:A nozzle 33 whose tip opening 33b is arranged in the liquid in a liquid storage container 28 is connected to an air pressure source 1 through ducts 25 and 4a. The upper space 32a in the liquid chamber 32 is connected to the body 14 to be inspected through ducts 26 and 4b. The air pressure source and body to be inspected are equalized in pressure by piping 3 which is not shown in a figure. Then a valve 9 provided on the piping 3 is closed to shield the air pressure source 1 and body 14 from each other. If the body 14 defective in sealing, an air leak is caused and the pressure in the upper space 32a of the liquid chamber 32 drops through the piping 4b. Then air from the air source 1 is injected into the liquid chamber 32 through the nozzle 33, so an air bubble is produced in the liquid. The photosensor consisting of a projector 35A and a photodetector 35B detects the air bubble to detect the air leak in the body.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21527387A JPS6459027A (en) | 1987-08-31 | 1987-08-31 | Leak inspection device |
KR1019880009851A KR890002651A (en) | 1987-07-31 | 1988-08-01 | Leak Detecting System |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21527387A JPS6459027A (en) | 1987-08-31 | 1987-08-31 | Leak inspection device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6459027A true JPS6459027A (en) | 1989-03-06 |
Family
ID=16669579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21527387A Pending JPS6459027A (en) | 1987-07-31 | 1987-08-31 | Leak inspection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6459027A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006073143A1 (en) * | 2005-01-05 | 2006-07-13 | Gunji Norinobu | Fluid pressure adjuster and apparatus using same |
CN103267617A (en) * | 2013-05-13 | 2013-08-28 | 上海盾构设计试验研究中心有限公司 | Device for testing abutting and sealing performance of shield machine |
-
1987
- 1987-08-31 JP JP21527387A patent/JPS6459027A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006073143A1 (en) * | 2005-01-05 | 2006-07-13 | Gunji Norinobu | Fluid pressure adjuster and apparatus using same |
CN103267617A (en) * | 2013-05-13 | 2013-08-28 | 上海盾构设计试验研究中心有限公司 | Device for testing abutting and sealing performance of shield machine |
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