CN201828385U - Helium mass spectrometer leak detection apparatus for multilayer metal corrugated pipe - Google Patents
Helium mass spectrometer leak detection apparatus for multilayer metal corrugated pipe Download PDFInfo
- Publication number
- CN201828385U CN201828385U CN2010202236622U CN201020223662U CN201828385U CN 201828385 U CN201828385 U CN 201828385U CN 2010202236622 U CN2010202236622 U CN 2010202236622U CN 201020223662 U CN201020223662 U CN 201020223662U CN 201828385 U CN201828385 U CN 201828385U
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- corrugated pipe
- corrugated tube
- leak detection
- flange
- helium mass
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Abstract
The utility model relates to a helium mass spectrometer leak detection apparatus for a multilayer metal corrugated pipe, which comprises a helium mass spectrometer leak detector and a helium source, and is characterized in the combination of a leak detection seal structure that: an upper flange and a lower flange are arranged on two ends of a corrugated pipe to be detected, two O-shaped rubber seal rings are respectively arranged on T-shaped surfaces of the upper flange and the lower flange, two outer rings are arranged at the outer sides of the two end parts of the corrugated pipe and are used for reinforcing a corrugated pipe connection port and for fixing an upper gland and a lower gland, then the upper gland and the lower gland are arranged on the O-shaped rubber seal rings and are locked by screws until the seal structure and the inner side of a straight wall of the corrugated pipe are not loosened. The helium mass spectrometer leak detection apparatus is characterized in that: the thickness of the upper and the lower flanges is increased, so effective volume of the corrugated pipe is reduced so as to accelerate the pre-pumping time of the device; and a sealing method of the O-shaped rubber seal rings is adopted on two ends of the corrugated pipe, so that not only can direct contact between the corrugated pipe and vacuum grease be avoided, but also the leak detection efficiency can be improved. According to different specifications of the metal corrugated pipe to be detected, the upper gland, the lower gland, the O-shaped rubber seal rings and the flanges with relevant sizes shall be replaced, so the detection requirement of the leakage rate of the metal corrugated pipe can be satisfied.
Description
Technical field
The utility model relates to the inspection machine in the metallic bellows production, a kind of multiple layer metal corrugated tube helium mass spectrum leak detection device.
Background technology
Metallic bellows is a kind of have transverse wave and flexible multi-functional thin-walled tubular parts, can produce under external force and moment loading axially, angle, side direction and combination displacement thereof.Metallic bellows plays the irreplaceable effect of other parts in many systems, be key components and parts, the inefficacy of metallic bellows may cause the inefficacy of subsystem or total system, and sylphon seal is one of its major parameter, therefore, the sealing leak detection is very important.Along with progress of science and technology, the vacuum leak hunting technology in the application in fields such as space flight, aviation, boats and ships, nuclear industry more and more widely.
Multiple layer metal corrugated tube helium mass spectrum sealing leak detection mode is: the corrugated tube two ends are also sealed with O type rubber seal, wherein leave the leak detection mouth in the middle of the hermetically-sealed construction of an end, place on the leak of helium mass spectrometer leak detector, the corrugated tube inner chamber is vacuumized, check the slip of corrugated tube then with spray helium method.Be to adopt corrugated tube two straight wall butt-end packing methods to hunt leak, this method can make in the interlayer of multiple layer metal corrugated tube vacuum grease, cleans under the sordid situation at vacuum grease, can bring many troubles to follow-up welding, influences product quality in the past.
Summary of the invention
The purpose of this utility model provides a kind of multiple layer metal corrugated tube helium mass spectrum leak detection device, can avoid metallic bellows directly to contact with vacuum grease, and minimizing equipment is found time in advance, satisfies the detection requirement of multiple layer metal corrugated tube slip.
The design's multiple layer metal corrugated tube helium mass spectrum leak detection device, comprise helium mass spectrometer leak detector and helium gas source, the combination of hermetically-sealed construction is characterized in that hunting leak: upper flange and lower flange place tested corrugated tube two ends, O type rubber seal is placed on respectively on the T profile of upper flange and lower flange, outer shroud is positioned over the outside at corrugated tube both ends, be used to reinforce corrugated tube interface and fixedly upper press cover and lower cover, then upper press cover and lower cover are placed on the O type rubber seal, with two parts locking up and down of screw handle, till loosening between hermetically-sealed construction and the straight wall of the corrugated tube inboard.
Metallic bellows helium mass spectrum leak detection apparatus features one is to strengthen flange thickness up and down, reduces the useful volume of corrugated tube, thereby accelerates finding time in advance of equipment; The 2nd, O type seal with elastometic washer method is adopted at the corrugated tube two ends, has both avoided corrugated tube to contact with the direct of vacuum grease, has improved leak detection efficient again.Can design different flanges and change different O-ring seals, thereby satisfy the detection requirement of metallic bellows slip according to different corrugated tubes.
Description of drawings
Fig. 1 is a multiple layer metal corrugated tube helium mass spectrum leak detection device synoptic diagram;
Fig. 2 is a metallic bellows spray helium method synoptic diagram;
Embodiment
Multiple layer metal corrugated tube helium mass spectrum leak detection device, see Fig. 2, comprise and utilize existing leak locator 9 and helium gas source 13, the component feature that it is characterized in that a designed cover metallic bellows vacuum leak hunting hermetically-sealed construction 10: see Fig. 1, upper flange 4 and lower flange 6 are right cylinder, its diameter all has threaded hole, an outer rim that annular T profile is arranged than the little 1.4-1.6mm of inside diameter of bel separately, and there is axially extending bore in lower flange 6 centers of circle.Discoidal upper press cover 2 and lower cover 8 all have the bolt open-work, and a side has ring protruding, encircles in protruding quite along the scarce width of width and flange ring, and lower cover 8 centers of circle have and the isometrical open-work of lower flange 6 circle center holes.Outer shroud 7 internal diameters are less than the outside diameter of bel lower limit.Sealing rubber pad 11 is for there being the disk of thickness, and there is open-work in the center of circle, and the aperture is less than above-mentioned two circle center holes.
The combination of leak detection hermetically-sealed construction 10: upper flange 4 and lower flange 6 place tested corrugated tube two ends, O type rubber seal 3 is placed on respectively on the T profile of upper flange 4 and lower flange 6, outer shroud 7 is positioned over the outside at corrugated tube both ends, be used to reinforce corrugated tube interface and fixedly upper press cover 2 and lower cover 8, then upper press cover 2 and lower cover 8 are placed on the O type rubber seal 3, with 1 two parts locking up and down of screw, till loosening between hermetically-sealed construction and the straight wall of the corrugated tube inboard.
During leak detection, the sealing surface of hermetically-sealed construction 10 is placed on the center of circle open-work that caulking gum 11 gives over to leak, and with each position spray helium that is connected 12 pairs of metallic bellowss of spray gun that helium gas source 13 is housed, if there is helium from small opening, to flow into, then the helium dividing potential drop in the device will rise, and will show slip on the Helium leak detector, otherwise, the demonstration no change of leak locator, thus the detection of metallic bellows finished.
The sealing structure can be changed upper press cover, lower cover, O type rubber seal and the flange of corresponding size according to the different size of tested metallic bellows, and is corresponding with tested metallic bellows, to satisfy the detection requirement of metallic bellows slip.
Claims (5)
1. multiple layer metal corrugated tube helium mass spectrum leak detection device, comprise helium mass spectrometer leak detector and helium gas source, the combination of hermetically-sealed construction is characterized in that hunting leak: upper flange and lower flange place tested corrugated tube two ends, O type rubber seal is placed on respectively on the T profile of upper flange and lower flange, outer shroud is positioned over the outside at corrugated tube both ends, be used to reinforce corrugated tube interface and fixedly upper press cover and lower cover, then upper press cover and lower cover are placed on the O type rubber seal, with two parts locking up and down of screw handle, till loosening between hermetically-sealed construction and the straight wall of the corrugated tube inboard.
2. multiple layer metal corrugated tube helium mass spectrum leak detection device according to claim 1, it is characterized in that the component feature in the hermetically-sealed construction (10): upper flange (4) and lower flange (6) are right cylinder, its diameter is than the little 1.4-1.6mm of inside diameter of bel, all have threaded hole, an outer rim to have annular to lack the T profile that forms separately, there is axially extending bore in lower flange (6) center of circle.
3. multiple layer metal corrugated tube helium mass spectrum leak detection device according to claim 1, it is characterized in that the component feature in the hermetically-sealed construction (10): discoidal upper press cover (2) and lower cover (8) all have the bolt open-work, one side has ring protruding, it is suitable to encircle the width that lacks along width and flange ring in protruding, and lower cover (8) center of circle has and the isometrical open-work of lower flange (6) circle center hole.
4. multiple layer metal corrugated tube helium mass spectrum leak detection device according to claim 1, it is characterized in that the component feature in the hermetically-sealed construction (10): sealing rubber pad (11) is for there being the disk of thickness, there is open-work in the center of circle, and the aperture is less than the circle center hole aperture of lower cover (8) with lower flange (6).
5. multiple layer metal corrugated tube helium mass spectrum leak detection device according to claim 1 is characterized in that the component feature in the hermetically-sealed construction (10): outer shroud (7) internal diameter is less than the outside diameter of bel lower limit.
6 multiple layer metal corrugated tube helium mass spectrum leak detection devices according to claim 1 is characterized in that the size of upper press cover (2), lower cover (8), O type rubber seal and upper flange (4), lower flange (6) is all corresponding with tested metallic bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202236622U CN201828385U (en) | 2010-06-12 | 2010-06-12 | Helium mass spectrometer leak detection apparatus for multilayer metal corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202236622U CN201828385U (en) | 2010-06-12 | 2010-06-12 | Helium mass spectrometer leak detection apparatus for multilayer metal corrugated pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201828385U true CN201828385U (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202236622U Expired - Lifetime CN201828385U (en) | 2010-06-12 | 2010-06-12 | Helium mass spectrometer leak detection apparatus for multilayer metal corrugated pipe |
Country Status (1)
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| CN (1) | CN201828385U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426082A (en) * | 2011-11-14 | 2012-04-25 | 中国电子科技集团公司第十八研究所 | Method for detecting leak of lithium ion storage battery before liquid injection and sealing |
| CN103604569A (en) * | 2013-11-04 | 2014-02-26 | 北京卫星环境工程研究所 | Rapid connection device of straight pipe helium mass spectrometer leak detection |
| CN105020403A (en) * | 2015-06-05 | 2015-11-04 | 苏州纽威阀门股份有限公司 | Valve |
| CN105179718A (en) * | 2015-09-21 | 2015-12-23 | 苏州纽威阀门股份有限公司 | Valve |
| CN109211481A (en) * | 2018-11-15 | 2019-01-15 | 中国电子科技集团公司第十三研究所 | Welding bellows device for detecting leak point |
| CN111947850A (en) * | 2020-09-17 | 2020-11-17 | 核工业西南物理研究院 | Double-layer-pipe helium leakage detection device with interlayer and method |
| US11346742B2 (en) | 2018-11-23 | 2022-05-31 | Lonza Ltd | Device and method for leakage testing of a connection between a rubber stopper and a corresponding drug container |
| CN114636522A (en) * | 2022-03-30 | 2022-06-17 | 武汉工程大学 | External heating ultra-high temperature flange sealing performance detection system |
| US11499885B2 (en) * | 2018-12-17 | 2022-11-15 | Lonza Ltd | Device and method for leakage testing of a connection between a rubber stopper and a corresponding drug container |
-
2010
- 2010-06-12 CN CN2010202236622U patent/CN201828385U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102426082A (en) * | 2011-11-14 | 2012-04-25 | 中国电子科技集团公司第十八研究所 | Method for detecting leak of lithium ion storage battery before liquid injection and sealing |
| CN102426082B (en) * | 2011-11-14 | 2016-01-20 | 中国电子科技集团公司第十八研究所 | Leak hunting method before a kind of lithium-ions battery fluid injection sealing |
| CN103604569A (en) * | 2013-11-04 | 2014-02-26 | 北京卫星环境工程研究所 | Rapid connection device of straight pipe helium mass spectrometer leak detection |
| CN105020403B (en) * | 2015-06-05 | 2017-09-12 | 苏州纽威阀门股份有限公司 | A kind of valve |
| CN105020403A (en) * | 2015-06-05 | 2015-11-04 | 苏州纽威阀门股份有限公司 | Valve |
| CN105179718A (en) * | 2015-09-21 | 2015-12-23 | 苏州纽威阀门股份有限公司 | Valve |
| CN105179718B (en) * | 2015-09-21 | 2017-09-12 | 苏州纽威阀门股份有限公司 | A kind of valve |
| CN109211481A (en) * | 2018-11-15 | 2019-01-15 | 中国电子科技集团公司第十三研究所 | Welding bellows device for detecting leak point |
| US11346742B2 (en) | 2018-11-23 | 2022-05-31 | Lonza Ltd | Device and method for leakage testing of a connection between a rubber stopper and a corresponding drug container |
| US11499885B2 (en) * | 2018-12-17 | 2022-11-15 | Lonza Ltd | Device and method for leakage testing of a connection between a rubber stopper and a corresponding drug container |
| US11852564B2 (en) | 2018-12-17 | 2023-12-26 | Lonza Ltd | Device and method for leakage testing of a connection between a rubber stopper and a corresponding drug container |
| CN111947850A (en) * | 2020-09-17 | 2020-11-17 | 核工业西南物理研究院 | Double-layer-pipe helium leakage detection device with interlayer and method |
| CN114636522A (en) * | 2022-03-30 | 2022-06-17 | 武汉工程大学 | External heating ultra-high temperature flange sealing performance detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUIBO HEAT ENERGY EQUIPMENT CO., LTD., SHENYANG Free format text: FORMER OWNER: SHENYANG INSTRUMENT SCIENTIFIC ACADEMY Effective date: 20111107 Free format text: FORMER OWNER: HUIBO HEAT ENERGY EQUIPMENT CO., LTD., SHENYANG |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110043 SHENYANG, LIAONING PROVINCE TO: 110016 SHENYANG, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20111107 Address after: 110016 Liaoning city of Shenyang province high tech Zone Hunnan Industrial Zone No. 79-1 Patentee after: Shenyang Huibo Heat Energy Equipment Co., Ltd. Address before: 110043 Beihai street, Shenyang, Liaoning, No. 242 Co-patentee before: Shenyang Huibo Heat Energy Equipment Co., Ltd. Patentee before: Shenyang Instrument Scientific Academy |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |