DE102004028876A1 - Sealing device for connecting openings, has two seals placed one behind other between adjacent opening areas, and sealing space sealed against outer space by seals, such that space is subjected to high pressure against one of two rooms - Google Patents
Sealing device for connecting openings, has two seals placed one behind other between adjacent opening areas, and sealing space sealed against outer space by seals, such that space is subjected to high pressure against one of two rooms Download PDFInfo
- Publication number
- DE102004028876A1 DE102004028876A1 DE200410028876 DE102004028876A DE102004028876A1 DE 102004028876 A1 DE102004028876 A1 DE 102004028876A1 DE 200410028876 DE200410028876 DE 200410028876 DE 102004028876 A DE102004028876 A DE 102004028876A DE 102004028876 A1 DE102004028876 A1 DE 102004028876A1
- Authority
- DE
- Germany
- Prior art keywords
- seals
- space
- sealing
- rooms
- sealing device
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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
- G01M3/225—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 welds
-
- 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
- G01M3/025—Details with respect to the testing of engines or engine parts
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
Die Erfindung betrifft eine Dichteinrichtung für eine Verbindung zweier Räume nach dem Oberbegriff des Patentanspruchs 1.The The invention relates to a sealing device for a connection of two rooms the preamble of claim 1.
Derartige Dichteinrichtungen können beispielsweise eingesetzt werden in Prüfeinrichtungen, in denen Hohlkörper auf Dichtheit geprüft werden. In diesen Fällen werden die zu prüfenden Hohlkörper über eine in diesen vorhandene Öffnung auf einen Stutzen dicht aufgesteckt und im Inneren unter Druck beispielsweise mit einem Prüfgas abgedrückt. Bei Dichtheit des Hohlkörpers und der Dichtung zu dem Stutzen, durch das Druckgas aufgegeben wird, darf kein Prüfgas nach außen austreten. Um bei einer vorhandenen Undichtigkeit diese erkennen zu können, erfolgt die Prüfung in einer den Hohlkörper als zu prüfendes Teil umgebenden abgeschlossenen Kammer. Festgestellt wird eine Undichtigkeit bei diesem Prüfsystem durch ein Detektieren von in die Kammer ausgetretenem Prüfgas, das eine gegenüber der Kammeratmosphäre andersartige Zusammensetzung besitzt. Liegt die Dichtung zwischen der Öffnung des zu prüfenden Hohlkörpers und des Anschlussstutzens für das Prüfgas innerhalb der Kammer, so muss auch die Dichtung absolut dicht sein, da anderenfalls durch diese austretendes Prüfgas eine im Grunde nicht vorhandene Undichtigkeit in der Außenwand des zu prüfenden Hohlkörpers fälschlich annehmen lassen könnte.such Sealing devices can For example, be used in testing facilities in which hollow body Tightness tested become. In these cases will be the ones to be tested Hollow body over a in this existing opening attached to a nozzle tight and inside under pressure, for example with a test gas pulled the trigger. For tightness of the hollow body and the seal to the nozzle, is given by the pressurized gas, may no test gas outward escape. To recognize this in case of an existing leak to be able to the exam in a the hollow body as to be tested Part surrounding enclosed chamber. A leak is found in this test system by detecting test gas leaked into the chamber, the one opposite the chamber atmosphere has different composition. Is the gasket between the opening of the test to be tested hollow body and the connecting piece for the test gas inside the chamber, so the seal must be absolutely tight, otherwise due to this leaking test gas basically nonexistent Leakage in the outer wall of the test to be tested hollow body false could accept.
Bei beispielsweise Dichtungen für derartige Anwendungsfälle beschäftigt sich die Erfindung mit dem Problem, absolut sicherzustellen, dass zumindest kein Prüfgas in die Außenkammer eintreten kann und zwar auch dann nicht, wenn die Dichtungen nicht absolut dicht schließen sollten.at for example, gaskets for such applications employed The invention deals with the problem of absolutely ensuring that at least no test gas in the outer chamber can not occur even if the seals are not Close absolutely tight should.
Gelöst wird dieses Problem bei einer gattungsgemäßen Dichteinrichtung erfindungsgemäß durch eine Ausbildung nach dem kennzeichnenden Merkmal des Patentanspruchs 1.Is solved this problem in a generic sealing device according to the invention by An education according to the characterizing feature of the claim 1.
Eine vorteilhafte und zweckmäßige Ausgestaltung ist Gegenstand des Unteranspruchs.A advantageous and expedient embodiment is the subject of the claim.
Die Erfindung beruht auf dem allgemeinen Gedanken, den Raum zwischen zwei strömungsmäßig hintereinander liegenden Dichtungen mit Druck derart zu beaufschlagen, dass zumindest gegenüber einem der gegeneinander gedichteten Räume eine Leckage lediglich von dem zwischen den beiden Dichtungen liegenden Raum in diesen hinein und nicht umgekehrt möglich ist.The Invention is based on the general idea of the space between two fluidly behind each other lying pressures to be applied with pressure such that at least opposite one of the sealed rooms leakage only from that between the two seals Space into them and not vice versa is possible.
Bei dem eingangs beschriebenen Anwendungsfall kann hierdurch sichergestellt werden, dass aus dem zu prüfenden Hohlkörper kein Prüfgas in die umgebende Kammer durch die Dichtung strömen kann. Hierdurch wird mit einer solchen Dichtung sicher vermieden, dass durch eine eventuell undichte Dichtung ein an sich dichter Hohlkörper während des Prüfprozesses fälschlicherweise als undicht angezeigt wird.at the application described above can thereby be ensured be that out of the one to be tested hollow body no test gas into the surrounding chamber through the seal. This is with Such a seal certainly avoided by any leaky seal a self-dense hollow body during the test process falsely is displayed as leaking.
Als besonders vorteilhaft erweist sich eine solche Dichtung in Anwendungsfällen, in denen ein Steckverschluss zur Dichtung zwischen zwei Stutzen dient.When Particularly advantageous, such a seal proves in applications, in which is a plug-in closure for sealing between two nozzles.
Ein nachstehend noch näher erläutertes Ausführungsbeispiel ist in der Zeichnung dargestellt.One in more detail below explained embodiment is shown in the drawing.
In dieser zeigt die einzige:In this shows the only one:
Auf
einem Prüftisch
Von
dem Prüftisch
Auf
den Stutzen
Der
Dichtungsraum
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410028876 DE102004028876A1 (en) | 2004-06-15 | 2004-06-15 | Sealing device for connecting openings, has two seals placed one behind other between adjacent opening areas, and sealing space sealed against outer space by seals, such that space is subjected to high pressure against one of two rooms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200410028876 DE102004028876A1 (en) | 2004-06-15 | 2004-06-15 | Sealing device for connecting openings, has two seals placed one behind other between adjacent opening areas, and sealing space sealed against outer space by seals, such that space is subjected to high pressure against one of two rooms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102004028876A1 true DE102004028876A1 (en) | 2006-01-05 |
Family
ID=35483261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200410028876 Withdrawn DE102004028876A1 (en) | 2004-06-15 | 2004-06-15 | Sealing device for connecting openings, has two seals placed one behind other between adjacent opening areas, and sealing space sealed against outer space by seals, such that space is subjected to high pressure against one of two rooms |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102004028876A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006047040B3 (en) * | 2006-10-02 | 2008-03-06 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Sterile vial package tightness determining apparatus, has spacer provided with different characteristics, thickness and diameter for introducing distance between stopper positions so that leakage is generated to guide test gas to tester |
| RU2418305C1 (en) * | 2010-01-11 | 2011-05-10 | Государственное образовательное учреждение высшего профессионального образования Самарский государственный аэрокосмический университет имени академика С.П. Королева (СГАУ) | Device for checking air-tightness of spacecraft structural components |
| CN109297649A (en) * | 2018-11-28 | 2019-02-01 | 首都航天机械有限公司 | A device for rapid helium mass spectrometry leak detection of circular welds in diaphragms |
| CN115962891A (en) * | 2022-11-28 | 2023-04-14 | 广东贝洛新材料科技有限公司 | Take central hole diaphragm class product to exempt from to wear inner core airtight test structure in advance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3762212A (en) * | 1971-07-15 | 1973-10-02 | Advanced Technologies Inc | Leak testing apparatus and methods |
| DE2802645A1 (en) * | 1978-01-21 | 1979-07-26 | Leybold Heraeus Gmbh & Co Kg | METHOD AND DEVICE FOR LEAK TESTING |
| DE2816687A1 (en) * | 1978-04-18 | 1979-10-31 | Leybold Heraeus Gmbh & Co Kg | Testing integrity of hollow article - involves using leak detection procedure by placing article in sealed test chamber |
| DE4212938A1 (en) * | 1992-04-18 | 1993-10-21 | Rexroth Mannesmann Gmbh | Seal testing appts. e.g. for testing vehicle shock absorber - has pressure source for filling first chamber with gas and uses pressure sensor to determine pressure increase in second chamber |
-
2004
- 2004-06-15 DE DE200410028876 patent/DE102004028876A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3762212A (en) * | 1971-07-15 | 1973-10-02 | Advanced Technologies Inc | Leak testing apparatus and methods |
| DE2802645A1 (en) * | 1978-01-21 | 1979-07-26 | Leybold Heraeus Gmbh & Co Kg | METHOD AND DEVICE FOR LEAK TESTING |
| DE2816687A1 (en) * | 1978-04-18 | 1979-10-31 | Leybold Heraeus Gmbh & Co Kg | Testing integrity of hollow article - involves using leak detection procedure by placing article in sealed test chamber |
| DE4212938A1 (en) * | 1992-04-18 | 1993-10-21 | Rexroth Mannesmann Gmbh | Seal testing appts. e.g. for testing vehicle shock absorber - has pressure source for filling first chamber with gas and uses pressure sensor to determine pressure increase in second chamber |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006047040B3 (en) * | 2006-10-02 | 2008-03-06 | Boehringer Ingelheim Pharma Gmbh & Co. Kg | Sterile vial package tightness determining apparatus, has spacer provided with different characteristics, thickness and diameter for introducing distance between stopper positions so that leakage is generated to guide test gas to tester |
| RU2418305C1 (en) * | 2010-01-11 | 2011-05-10 | Государственное образовательное учреждение высшего профессионального образования Самарский государственный аэрокосмический университет имени академика С.П. Королева (СГАУ) | Device for checking air-tightness of spacecraft structural components |
| CN109297649A (en) * | 2018-11-28 | 2019-02-01 | 首都航天机械有限公司 | A device for rapid helium mass spectrometry leak detection of circular welds in diaphragms |
| CN109297649B (en) * | 2018-11-28 | 2020-10-23 | 首都航天机械有限公司 | Device for quickly detecting leakage of inner circular welding seam of diaphragm by helium mass spectrometer |
| CN115962891A (en) * | 2022-11-28 | 2023-04-14 | 广东贝洛新材料科技有限公司 | Take central hole diaphragm class product to exempt from to wear inner core airtight test structure in advance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
| 8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
| 8130 | Withdrawal |