GB1397465A - Apparatus for detecting a leak in a vessel - Google Patents

Apparatus for detecting a leak in a vessel

Info

Publication number
GB1397465A
GB1397465A GB2966272A GB2966272A GB1397465A GB 1397465 A GB1397465 A GB 1397465A GB 2966272 A GB2966272 A GB 2966272A GB 2966272 A GB2966272 A GB 2966272A GB 1397465 A GB1397465 A GB 1397465A
Authority
GB
United Kingdom
Prior art keywords
vessel
helium
bell jar
via valve
detector
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.)
Expired
Application number
GB2966272A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ulvac Inc
Original Assignee
Ulvac Inc
Nihon Shinku Gijutsu KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ulvac Inc, Nihon Shinku Gijutsu KK filed Critical Ulvac Inc
Publication of GB1397465A publication Critical patent/GB1397465A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
    • G01M3/205—Accessories or associated equipment; Pump constructions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

1397465 Leak detection NIHON SHINKU GIJUTSU KK 23 June 1972 [26 April 1972] 29662/72 Heading G1S In an apparatus in which leakage in a vessel 3 is detected by supplying helium to one side of the vessel and connecting a helium detector 7 to the other side, a pumping system 9 is provided for pumping residual helium from the conduit leading to detector 7. In the Figs., four identical testing stations are provided on a turntable 1 which rotates one revolution in 100 secs. Each testing station is provided with a bell jar 2 and is connected by conduits to evacuation pumps 4, 9, 5 and 8, to detector 7, and to helium source 6. The valves in the conduits are operated successively as the turntable rotates to carry out a test sequence for each testing station during one revolution, the operating sequence of each station being 90 degrees, or 25 secs, behind that of the preceding station. Referring to one station, vessel 3 is attached, and the bell jar 2 placed in position. Bell jar 2 is evacuated by pump 4 via valve V 1 and vessel 3 is evacuated by pump 5 via valve V 2 . Helium gas is then introduced into the vessel 2 from source 6 via valve V 3 . In the next period, the vessel 3 is connected to the detector 7 via valve V4, while the helium is pumped from the bell jar 2 by pump 8 via valve V 5 and returned to the source 6. Any residual helium is then removed from conduit C 4 by the pumping system 9 via valve V 6 . Finally air is introduced into the bell jar via V 7 and the bell jar and vessel are removed. Fig. 2 shows the exact periods of opening of the various valves.
GB2966272A 1972-04-26 1972-06-23 Apparatus for detecting a leak in a vessel Expired GB1397465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4123672A JPS494586A (en) 1972-04-26 1972-04-26

Publications (1)

Publication Number Publication Date
GB1397465A true GB1397465A (en) 1975-06-11

Family

ID=12602771

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2966272A Expired GB1397465A (en) 1972-04-26 1972-06-23 Apparatus for detecting a leak in a vessel

Country Status (5)

Country Link
JP (1) JPS494586A (en)
DE (1) DE2234672A1 (en)
FR (1) FR2182425A5 (en)
GB (1) GB1397465A (en)
IT (1) IT961387B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282892A (en) * 1993-10-15 1995-04-19 Prestige Air Technology Limite Method of detecting a leak in a barrier between two regions
ITPD20110150A1 (en) * 2011-05-12 2012-11-13 Eng Service S R L APPARATUS FOR THE DETECTION OF LOSSES OF A HOLDING COMPONENT AND A RELATED DETECTION PROCESS

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2073433B (en) * 1979-09-03 1984-05-02 Otsuka Pharma Co Ltd Method and apparatus for inspecting sealed packages for pinholes
JPS61105842U (en) * 1984-12-19 1986-07-05
JP2888241B2 (en) * 1988-10-31 1999-05-10 株式会社島津製作所 Leak test equipment
JPH0489542A (en) * 1990-07-31 1992-03-23 Nissan Motor Co Ltd Inspection of airtightness for hollow container
DE9320396U1 (en) * 1993-10-21 1994-10-13 Leybold Ag, 63450 Hanau Device for examining properties of a test specimen with a cavity
DE10235878A1 (en) * 2002-01-18 2003-07-31 Inficon Gmbh Leak testing of small components or housings, whereby samples or items to be tested are delivered to a gyro-wheel that rotates during sample preparation and testing so that a high testing rate can be achieved

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2282892A (en) * 1993-10-15 1995-04-19 Prestige Air Technology Limite Method of detecting a leak in a barrier between two regions
GB2282892B (en) * 1993-10-15 1998-04-29 Prestige Air Technology Limite Method of determining the integrity of a barrier between one region and another
ITPD20110150A1 (en) * 2011-05-12 2012-11-13 Eng Service S R L APPARATUS FOR THE DETECTION OF LOSSES OF A HOLDING COMPONENT AND A RELATED DETECTION PROCESS
WO2012153306A1 (en) * 2011-05-12 2012-11-15 Eng Service S.R.L. A detection apparatus for detecting leaks in an air-tight component and a relevant detection process

Also Published As

Publication number Publication date
FR2182425A5 (en) 1973-12-07
IT961387B (en) 1973-12-10
JPS494586A (en) 1974-01-16
DE2234672A1 (en) 1973-11-08

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years