GB1213813A - Improvements relating to the detection of leaky seals - Google Patents
Improvements relating to the detection of leaky sealsInfo
- Publication number
- GB1213813A GB1213813A GB4115067A GB4115067A GB1213813A GB 1213813 A GB1213813 A GB 1213813A GB 4115067 A GB4115067 A GB 4115067A GB 4115067 A GB4115067 A GB 4115067A GB 1213813 A GB1213813 A GB 1213813A
- Authority
- GB
- United Kingdom
- Prior art keywords
- seal
- chamber
- gas
- withdrawal
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Radiation (AREA)
Abstract
1,213,813. Testing a seal. PLESSEY CO. Ltd. Feb.9, 1968 [Feb. 10, 1967; Sept. 8, 1967], Nos. 6608/67 and 41150/67. Heading G1A. A seal is tested by applying a radio-active fluid under pressure to one side of it and monitoring for radio-activity arising from a leak on the other. A gas such as Krypton 85 may be used and it may be mixed with carbon dioxide, a geiger counter or a photo-multiplier and scintillation counter being used for monitoring. In one arrangement gas from a chamber is admitted into a cylinder having the seal in its end wall by withdrawal of a piston and returned to the chamber by the return of the piston after a predetermined time. In an alternative arrangement the gas mixture is held solid by liquid nitrogen and is allowed to sublimate or vaporize by withdrawal of the nitrogen and a chamber on the other side of the seal is monitored for radioactivity by pumping its contents past a geiger counter.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB660867 | 1967-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1213813A true GB1213813A (en) | 1970-11-25 |
Family
ID=9817568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4115067A Expired GB1213813A (en) | 1967-02-10 | 1967-02-10 | Improvements relating to the detection of leaky seals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1213813A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4574619A (en) * | 1983-10-05 | 1986-03-11 | Societe Nationale d'Etude et de Construction de Meteurs d'Aviation | Method for determining the flow rate of air through a turbine-engine labyrinth seal |
CN112113147A (en) * | 2020-09-07 | 2020-12-22 | 孙永林 | Gas leakage detection ring capable of automatically changing light from convex at joint of natural gas pipeline |
CN117387851A (en) * | 2023-12-13 | 2024-01-12 | 山东菲特自控阀门制造有限公司 | Quality detection equipment for gate valve |
-
1967
- 1967-02-10 GB GB4115067A patent/GB1213813A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4574619A (en) * | 1983-10-05 | 1986-03-11 | Societe Nationale d'Etude et de Construction de Meteurs d'Aviation | Method for determining the flow rate of air through a turbine-engine labyrinth seal |
CN112113147A (en) * | 2020-09-07 | 2020-12-22 | 孙永林 | Gas leakage detection ring capable of automatically changing light from convex at joint of natural gas pipeline |
CN117387851A (en) * | 2023-12-13 | 2024-01-12 | 山东菲特自控阀门制造有限公司 | Quality detection equipment for gate valve |
CN117387851B (en) * | 2023-12-13 | 2024-02-23 | 山东菲特自控阀门制造有限公司 | Quality detection equipment for gate valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |