GB961616A - Process and apparatus for leak detection - Google Patents

Process and apparatus for leak detection

Info

Publication number
GB961616A
GB961616A GB666862A GB666862A GB961616A GB 961616 A GB961616 A GB 961616A GB 666862 A GB666862 A GB 666862A GB 666862 A GB666862 A GB 666862A GB 961616 A GB961616 A GB 961616A
Authority
GB
United Kingdom
Prior art keywords
valve
pressure
line
test
feb
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
GB666862A
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.)
Linde GmbH
Original Assignee
Gesellschaft fuer Lindes Eismaschinen AG
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 Gesellschaft fuer Lindes Eismaschinen AG filed Critical Gesellschaft fuer Lindes Eismaschinen AG
Publication of GB961616A publication Critical patent/GB961616A/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
    • G01M3/22—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 for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • 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
    • G01M3/22—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 for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/226—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 for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators

Landscapes

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

Abstract

961, 616. Leak detection. GESELLSCHAFT FURLINDE'S EISMASCHINEN A.G. Feb. 21, 1962 [Feb. 23, 1961], No. 6668/62. Heading G1S. A tracer-gas mixture for leakage detection is prepared automatically in a mixing container 7 (ready for a subsequent test), whenever a testobject (evacuated) is connected to the discharge line 13a, by the pressure-drop in line 13a beyond the (closed) valve 14 first of all causing the pressure-gauge pointer 17 to make contact with a stop 18 and, through relays, to open valve 14 simultaneously closing a valve 6; then, as the pressure rises in line 13a, pointer 17 contacts stop 19 to reverse the valves and thus allow inert gas (nitrogen) from cylinders 1 to enter the container 7. The latter is supplied from a reservoir 8, using the manual valve 11, with a liquid having a low boiling point such as " Freon" (Trade Mark) 12 or 22, and the vapour (used as the tracer gas in conjunction with a halogen detector) mixes thoroughly with the rapidly-entering nitrogen. A pressure equilibrium is set up and a constant pressure constant-composition mixture is thus ready for the next test. When the test-object is disconnected from line 13a, the latter is closed by a spring-loaded valve. In a modified embodiment the lines 4 and 13 meet outside the mixing vesselin a T-junction, but the operational sequence is essentially unaltered. The indicator liquid in vessel 7 requires replenishment about every two months, an indicator tube 12 being provided for monitoring the level. The valve 11 may be operated automatically in response to a signal from level-monitoring means.
GB666862A 1961-02-23 1962-02-21 Process and apparatus for leak detection Expired GB961616A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG31673A DE1180165B (en) 1961-02-23 1961-02-23 Method and device for leak testing

Publications (1)

Publication Number Publication Date
GB961616A true GB961616A (en) 1964-06-24

Family

ID=7124279

Family Applications (1)

Application Number Title Priority Date Filing Date
GB666862A Expired GB961616A (en) 1961-02-23 1962-02-21 Process and apparatus for leak detection

Country Status (2)

Country Link
DE (1) DE1180165B (en)
GB (1) GB961616A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368666A1 (en) * 1976-10-21 1978-05-19 Cazeau Philippe Gas pipe leak checking system - generates vacuum after isolation from mains and monitors pressure rise
CN108245931A (en) * 2016-12-29 2018-07-06 天津领世生物科技开发有限公司 Mechanical column chromatography device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135751C3 (en) * 1971-07-16 1983-12-29 Leybold-Heraeus GmbH, 5000 Köln Procedure for the integral determination of tightness
JPS63203582A (en) * 1987-02-10 1988-08-23 日本エンヂニヤ−・サ−ビス株式会社 Underground tank with leakage detecting mechanism
DE4330707A1 (en) * 1993-09-10 1995-03-16 Inst Luft Und Kaeltetechnik Gm Method for testing the tightness of products of refrigeration technology, and arrangement for carrying out the method
DE202011108226U1 (en) 2011-11-24 2012-01-31 Minimax Gmbh & Co. Kg Device for leak testing of pipelines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE737201C (en) * 1938-10-07 1943-07-08 Siemens Ag Procedure for testing housings for electrical machines, transformers and devices for explosion safety

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2368666A1 (en) * 1976-10-21 1978-05-19 Cazeau Philippe Gas pipe leak checking system - generates vacuum after isolation from mains and monitors pressure rise
CN108245931A (en) * 2016-12-29 2018-07-06 天津领世生物科技开发有限公司 Mechanical column chromatography device

Also Published As

Publication number Publication date
DE1180165B (en) 1964-10-22

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