CN1364232A - 薄膜检漏箱 - Google Patents
薄膜检漏箱 Download PDFInfo
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- CN1364232A CN1364232A CN00810832A CN00810832A CN1364232A CN 1364232 A CN1364232 A CN 1364232A CN 00810832 A CN00810832 A CN 00810832A CN 00810832 A CN00810832 A CN 00810832A CN 1364232 A CN1364232 A CN 1364232A
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- 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
- G01M3/229—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 removably mounted in a test cell
-
- 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
- G01M3/227—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 for flexible or elastic containers
-
- 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
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3281—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators removably mounted in a test cell
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
本发明涉及一种薄膜检漏箱,它具有两个相互铰接的框(2、3)、张紧在框内的薄膜(4、5)、一由薄膜构成的测试腔(8)、一位于框之间的密封件(12,13,18)和至少一个,优选多个在两个框(2,3)中的至少一个上的孔(7),这些孔可与一真空泵(15、16、22)的入口连接;为了改善检漏箱的关闭特性,建议,设一独立于测试腔(8)的可抽真空的边缘区(14),孔(7)通入此边缘区内。
Description
薄膜检漏箱,具有两个相互铰链连接的框、张紧在框内的薄膜、一由薄膜构成的测试腔、一位于框之间的密封件和至少一个,优选多个在至少一个框上的孔,它们可与一真空泵的入口连接。
由DE-A-19642099已知一种这一类型的薄膜检漏箱。它是检漏仪的一个组成部分,检漏仪配备普通的装备(真空泵、测量气体传感器、控制装置等等)。
在这里所述类型的薄膜检漏仪中两个框基本上水平放置。上框在与铰链相对的一侧上配备一手柄。
为了打开由薄膜构成的测试腔,抬起上框。然后在下薄膜上放上一待检漏试件。通过放下上框将测试腔关闭,而且关闭到这样的程度,即使得位于框之间的密封件确保测试腔的真空密封封闭。
试件通常具有一定的体积,使薄膜需要或多或少的延伸。为此需要施加一个力,它与上框的下降运动方向相反,并只有在测试腔内的负压足够低时才达到平衡。在到达这种负压之前薄膜检漏仪的操作者必须压住上框。这个时间间隔比较长,因为测试腔的弹性壁首先退让,然后才形成决定性的负压,如果薄膜贴合在试件上,并且还存在的自由空腔基本上占有其最小体积的话。
在这里所述类型的较大的薄膜检漏仪中众所周知,它配备一弹簧,它的力同样与上框的闭合运动方向相反。通过这种弹簧应该达到:在灌注期间上框要么自动打开,要么至少支持在这个时刻必要的框的开启运动。由于这一与闭合运动方向相反的第二个力,对于固定上框直至可靠地封闭测试腔必需花费的时间更长。
本发明的目的是,改进这里所述类型的薄膜检漏箱的闭合性能。
按照本发明这个目的通过权利要求的特征来实现。
由于存在着一独立于固有的测试腔的、具有较小体积的可抽真空的边缘区,在这个边缘区内非常迅速地形成所要求的负压,它固定下降到下框上的上框。测试腔内的压力本身在这个时刻还不必明显地降低。
可以借助于在图1和2中示意表示的实施例对本发明其他的优点和细节加以说明。附图表示:
-图1 一带有双重密封的结构的局部剖和-图2 一带有作用在薄膜上的凸台的结构的局部剖。
在附图中薄膜检漏箱用1表示,其两个框用2、3,张紧在框内的薄膜用4、5,设置在上框上的手柄用6,在框2、3之一,优选下框3上的可与一真空泵连接的孔用7,固有的测试腔用8,一设置在优选下薄膜5上的、可与一真空泵连接的接头用9和一位于测试腔8内的试件用11表示。
在按图1的结构中框2、3配备双密封件。它包括两个同心的密封圈12、13和中间空腔14。孔7通入该中间空腔内,使它构成可抽真空的边缘区。
在孔7和接头9上分别连接一真空泵15、16。在上框2下降到下框3上以后开始抽真空过程。由于中间空腔14体积非常小,里面很快达到负压,此负压固定上框2。
在按图2的实施例中在框2、3之间只有一个密封件18。上框2附加地配备一环绕的凸台19,它使张紧在上框2内的薄膜4向下框3方向成形。凸台19的环绕自由边21具有这样的位置,使得在上框2降下时薄膜4、5相互接触。由此在密封唇18和薄膜4、5的接触线之间形成所希望的可抽真空的边缘区14。
在按图2的结构中只设一个真空泵22。其入口通过两根管道23、24与孔7或接头9连接。每根管道23,24配备一个阀门25、26。由此存在这样的可能性,首先将可抽真空的边缘区14抽真空,以便在边缘区14内产生足够低的负压。然后测试腔8抽真空。
按图2的方案一个显著的优点是,一已经制造好的薄膜检漏箱1的框2或3可以用凸台19改装。在新的薄膜检漏箱1中凸台19适宜于和框2、3中的一个连成一体。
Claims (4)
1.薄膜检漏箱(1),具有两个相互铰链连接的框(2,3)、张紧在框内的薄膜(4,5)、一由薄膜构成的测试腔(8)、一位于框之间的密封件(12,13,18)和至少一个,优选多个在两个框(2,3)中至少一个上的孔(7),该孔可以与一真空泵(15,16,22)的入口连接,其特征为:设有一独立于测试腔(8)的、可抽真空的边缘区(14),孔(7)通入该边缘区内。
2.按权利要求1所述的检漏箱,其特征为:在两个框(2,3)之间有两个同心的密封件(12,13),其中间空腔构成边缘区(14)。
3.按权利要求1所述的检漏箱,其特征为:框(2,3)中的一个配备一环绕的内凸台(19),凸台(19)的环绕边缘(21)贴放在所属薄膜(4,5)上并具有这样的位置,使两个薄膜(4,5)在框(2,3)相互贴放时相互接触。
4.按权利要求3所述的检漏箱,其特征为:凸台(19)与框(2,3)之一连成一体地成形。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19935293.3 | 1999-07-27 | ||
DE19935293A DE19935293A1 (de) | 1999-07-27 | 1999-07-27 | Folienlecksuchkammer |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1364232A true CN1364232A (zh) | 2002-08-14 |
CN1182379C CN1182379C (zh) | 2004-12-29 |
Family
ID=7916252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008108323A Expired - Lifetime CN1182379C (zh) | 1999-07-27 | 2000-07-06 | 薄膜检漏箱 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6955076B1 (zh) |
EP (1) | EP1198700B1 (zh) |
JP (1) | JP4488474B2 (zh) |
CN (1) | CN1182379C (zh) |
DE (2) | DE19935293A1 (zh) |
WO (1) | WO2001007887A1 (zh) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100514017C (zh) * | 2003-11-13 | 2009-07-15 | 因菲康有限公司 | 用于操作氢气检漏装置的方法 |
CN103998910A (zh) * | 2012-01-03 | 2014-08-20 | 英福康有限责任公司 | 用于在非刚性待测样本上进行泄漏检测的方法 |
CN104040317A (zh) * | 2011-11-16 | 2014-09-10 | 英福康有限责任公司 | 尺寸稳定/松弛包装的没有附加的测量气体的快速泄漏检测 |
CN104330222A (zh) * | 2014-11-21 | 2015-02-04 | 山西新华化工有限责任公司 | 面具水下气密检测系统 |
CN106716099A (zh) * | 2014-09-25 | 2017-05-24 | 英福康有限责任公司 | 具有限位结构的薄膜腔 |
CN107076636A (zh) * | 2014-09-15 | 2017-08-18 | 英福康有限责任公司 | 具有用于粗泄漏测试的测量体积的薄膜腔 |
CN110312920A (zh) * | 2017-01-23 | 2019-10-08 | 英福康有限责任公司 | 具有双层薄膜的薄膜腔室 |
CN111656152A (zh) * | 2018-01-29 | 2020-09-11 | 英福康有限责任公司 | 使用具有通风测量体积的薄膜腔进行泄漏测试的方法 |
CN112469983A (zh) * | 2018-05-22 | 2021-03-09 | 气体运输技术公司 | 泄漏检测设备 |
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CN102494852B (zh) * | 2011-12-06 | 2014-05-28 | 中国航天科技集团公司第五研究院第五一〇研究所 | 一种校准氦质谱检漏仪的方法 |
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KR101402994B1 (ko) | 2014-02-28 | 2014-06-03 | 주식회사 나노하이테크 | 진공 리크 검사장치 |
DE102014224799A1 (de) * | 2014-12-03 | 2016-06-09 | Inficon Gmbh | Dichtheitsprüfung mit Trägergas in Folienkammer |
CN105241619A (zh) * | 2015-10-30 | 2016-01-13 | 南京化工特种设备检验检测研究所 | 压力容器泄露的检测装置 |
DE102016201359A1 (de) | 2016-01-29 | 2017-08-03 | Inficon Gmbh | Lecksuche an einem flexiblen Prüfling in einer Folienkammer |
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-
1999
- 1999-07-27 DE DE19935293A patent/DE19935293A1/de not_active Withdrawn
-
2000
- 2000-07-06 EP EP00949271A patent/EP1198700B1/de not_active Expired - Lifetime
- 2000-07-06 JP JP2001512267A patent/JP4488474B2/ja not_active Expired - Lifetime
- 2000-07-06 DE DE50008136T patent/DE50008136D1/de not_active Expired - Lifetime
- 2000-07-06 WO PCT/EP2000/006390 patent/WO2001007887A1/de active Search and Examination
- 2000-07-06 CN CNB008108323A patent/CN1182379C/zh not_active Expired - Lifetime
- 2000-07-06 US US10/031,876 patent/US6955076B1/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100514017C (zh) * | 2003-11-13 | 2009-07-15 | 因菲康有限公司 | 用于操作氢气检漏装置的方法 |
CN104040317A (zh) * | 2011-11-16 | 2014-09-10 | 英福康有限责任公司 | 尺寸稳定/松弛包装的没有附加的测量气体的快速泄漏检测 |
CN103998910A (zh) * | 2012-01-03 | 2014-08-20 | 英福康有限责任公司 | 用于在非刚性待测样本上进行泄漏检测的方法 |
CN107076636A (zh) * | 2014-09-15 | 2017-08-18 | 英福康有限责任公司 | 具有用于粗泄漏测试的测量体积的薄膜腔 |
US10309862B2 (en) | 2014-09-15 | 2019-06-04 | Inficon Gmbh | Film chamber with measuring volume for gross leak detection |
CN106716099B (zh) * | 2014-09-25 | 2019-12-24 | 英福康有限责任公司 | 具有限位结构的薄膜腔 |
CN106716099A (zh) * | 2014-09-25 | 2017-05-24 | 英福康有限责任公司 | 具有限位结构的薄膜腔 |
CN104330222A (zh) * | 2014-11-21 | 2015-02-04 | 山西新华化工有限责任公司 | 面具水下气密检测系统 |
CN110312920A (zh) * | 2017-01-23 | 2019-10-08 | 英福康有限责任公司 | 具有双层薄膜的薄膜腔室 |
CN110312920B (zh) * | 2017-01-23 | 2021-03-12 | 英福康有限责任公司 | 具有双层薄膜的薄膜腔室 |
CN111656152A (zh) * | 2018-01-29 | 2020-09-11 | 英福康有限责任公司 | 使用具有通风测量体积的薄膜腔进行泄漏测试的方法 |
CN111656152B (zh) * | 2018-01-29 | 2022-10-18 | 英福康有限责任公司 | 使用具有通风测量体积的薄膜腔进行泄漏测试的方法 |
CN112469983A (zh) * | 2018-05-22 | 2021-03-09 | 气体运输技术公司 | 泄漏检测设备 |
Also Published As
Publication number | Publication date |
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WO2001007887A1 (de) | 2001-02-01 |
DE50008136D1 (de) | 2004-11-11 |
EP1198700A1 (de) | 2002-04-24 |
CN1182379C (zh) | 2004-12-29 |
JP4488474B2 (ja) | 2010-06-23 |
JP2003505690A (ja) | 2003-02-12 |
EP1198700B1 (de) | 2004-10-06 |
US6955076B1 (en) | 2005-10-18 |
DE19935293A1 (de) | 2001-02-01 |
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