CN112763152A - Air leakage detection method of inflatable product - Google Patents
Air leakage detection method of inflatable product Download PDFInfo
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- CN112763152A CN112763152A CN202110171163.6A CN202110171163A CN112763152A CN 112763152 A CN112763152 A CN 112763152A CN 202110171163 A CN202110171163 A CN 202110171163A CN 112763152 A CN112763152 A CN 112763152A
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- Prior art keywords
- gas
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- test
- detected
- inflatable product
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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
- G01M3/202—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
-
- 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
- G01M3/04—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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a gas leakage detection method of an inflatable product, which fills mixed gas into the inflatable product to be detected; placing an inflatable product to be detected into a sealed test cover, wherein the test cover is provided with more than two test areas, and each test area is provided with a plurality of detection holes; connecting each detection hole to a gas tester through a detection pipeline; gas samples of all the test areas are sequentially extracted and sequentially enter a gas tester for detection; and completing the air leakage detection of the inflatable product to be detected after all the detection areas are detected. According to the invention, the test cover is divided into a plurality of test areas, each test area is provided with a plurality of detection holes, and each detection hole is connected with the gas tester, so that the gas tester can quickly detect gas leakage at any position of an inflatable product, the gas leakage detection consumes less time, and the gas leakage detection can be quickly completed.
Description
Technical Field
The invention relates to the field of inflatable product detection, in particular to a gas leakage detection method of an inflatable product.
Background
Common inflatable products in the market, such as inflatable beds, inflatable tables, inflatable boats, inflatable toys and the like, are popular with consumers due to the advantages of light weight, folding property, easy carrying, good comfort and the like, have extremely wide application range, become one of essential products for people to stay at home and travel, and have extremely high market prospect. The air tightness of the aerated product is a key index for judging the product quality of the aerated product, and whether the air tightness is excellent or not directly influences the use experience of consumers on the aerated product. Therefore, most inflatable products are tested for air tightness before being put on the market.
At present, the airtightness detection methods of the aerated product comprise a pressure drop method and a gas detection method, and the helium detection method is most commonly used in the gas detection method. Helium detection method: the helium is filled in the inflatable product, then the inflatable product is placed in the sealed test cover, the detection air hole is formed in the test cover, the detection air hole is connected to the helium mass spectrometer, and after the helium mass spectrometer is placed for a period of time, if the inflatable product has an air leakage condition, the helium mass spectrometer can detect the helium. This helium detection method has the following problems:
firstly, because only one detection air hole is arranged on the test cover, when the air leakage point is not near the detection air hole, a certain time is needed for the helium to diffuse to the detection air hole. Therefore, the existing air leakage detection needs to be placed for a long time, and the time cost is high.
Second, in order to accomplish the gas leakage detection of aerifing the product fast, fill at the inside helium concentration of aerifing the product through improving at present, like this, even gas leakage point and detection gas pocket have a certain distance, helium mass spectrometer also can the short-term test. However, since helium is expensive, increasing helium concentration will undoubtedly increase the cost of leak detection.
In view of the above, the present invention is made to solve the above-mentioned problems of the air leakage detection.
Disclosure of Invention
The invention aims to provide a gas leakage detection method of an inflatable product, which is less in time consumption and can quickly complete gas leakage detection.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method of detecting air leakage in an inflatable product, comprising
Filling a mixed gas into an inflatable product to be detected, wherein the mixed gas contains the gas to be detected;
placing an inflatable product to be detected into a sealed test cover, wherein the test cover is provided with more than two test areas, and each test area is provided with a plurality of detection holes;
connecting each detection hole to a gas tester through a detection pipeline, and connecting the detection holes in different test areas to the gas tester through different detection pipelines; the gas tester is used for detecting gas to be detected;
after the test area is placed for T time, gas samples of all the test areas are sequentially extracted and sequentially enter a gas tester for detection;
and when all the test areas are detected, the air leakage detection of the inflatable product to be detected is finished, and if only one test area detects the gas to be detected, the air leakage of the inflatable product to be detected is indicated.
And a control valve is arranged on the detection pipeline of each test area, when the gas tester detects a certain test area, the control valve on the detection pipeline of the test area is opened, and the control valves on the detection pipelines of other test areas are closed.
And the detection pipeline of each test area is also connected with an air exhaust device, and after the detection pipeline is connected, the air exhaust device is started to exhaust the inner cavity of the test cover in T time and the subsequent detection process.
The gas tester is a gas mass spectrometer.
The gas to be detected is helium or sulfur hexafluoride, and the gas tester is a helium tester or a sulfur hexafluoride tester.
After the scheme is adopted, the air leakage detection method has at least the following beneficial effects:
firstly, the test cover is divided into a plurality of test areas, and the gas tester adopts a one-by-one detection mode for each test area. The gas tester reduces the area of leakage of the gas to be tested for diffusion, so that the gas tester can detect whether the gas leaks or not as long as each gas leakage point diffuses in the test area where the gas leakage point is located. And because each test area is provided with a plurality of detection holes, the gas to be detected leaked out from each gas leakage point does not need to fill the test area, and the gas tester can detect whether gas is leaked, so that the time consumed by gas leakage detection is reduced.
Secondly, because the diffusion range of the leaked gas is reduced, the concentration of the gas to be detected can be reduced when the gas to be detected is filled in the mixed gas in the inflatable product to be detected, and the gas leakage detection cost is reduced.
The gas tester adopts a one-by-one detection mode for each test area, so that the gas leakage area can be accurately positioned, the search range of the gas leakage hole is further reduced, and convenience is provided for the repair work of subsequent inflatable products.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a schematic view of air leakage detection according to an embodiment of the present invention;
fig. 3 is a schematic view of air leakage detection according to another embodiment of the present invention.
Description of reference numerals:
a test housing 1; an inflatable product 2 to be detected; a helium mass spectrometer 3; a detection pipeline 4; a control valve 5; and an air extracting device 6.
Detailed Description
As shown in FIG. 1, the invention discloses a method for detecting air leakage of an inflatable product, which comprises the following steps:
According to the invention, the test cover 1 is divided into a plurality of test areas, each test area is provided with a plurality of detection holes, and each detection hole is connected with the gas tester, so that the gas tester can quickly detect gas leakage at any position of an inflatable product, the gas leakage detection consumes less time, and the gas leakage detection can be quickly completed.
In the invention, the gas to be detected is helium, sulfur hexafluoride or other gas convenient to detect, and correspondingly, the gas to be detected is a helium tester, a sulfur hexafluoride tester or a tester of other gases. In the following embodiments, helium is used as the gas to be detected, the mixed gas is formed by mixing helium and air, and the helium mass spectrometer 3 is used as a gas tester.
In this embodiment, each of the detection pipelines 4 of the test areas is provided with a control valve 5, when the helium mass spectrometer 3 detects a certain test area, the control valve 5 on the detection pipeline 4 of the test area is opened, and the control valves 5 on the detection pipelines 4 of other test areas are closed.
As shown in fig. 2, the sealing test cover 1 of the present embodiment is divided into five test areas, the detection pipelines 4 of the five test areas are all provided with the control valves 5, and when the detection is started, the helium mass spectrometer 3 sequentially performs sampling detection on the first test area, the second test area, the third test area, the fourth test area and the fifth test area in sequence. When the first test area is detected, the control valve 5 of the first test area is opened, and the control valves 5 corresponding to the second to fifth test areas are closed. When detecting the second test area, the control valve 5 of the second test area is opened, and the control valves 5 corresponding to the first test area and the third to fifth test areas are closed. When detecting the test area III, the control valve 5 of the test area III is opened, and the control valves 5 corresponding to the test areas III to II and IV to V are closed. When detecting the test area four, the control valve 5 of the test area four is opened, and the control valve 5 corresponding to the test area one to three and the test area five is closed. When detecting the test area five, the control valve 5 of the test area five is opened, and the control valves 5 corresponding to the test areas one to four are closed. And the detection of the fifth test is finished, namely the detection of the inflatable product 2 to be detected is also finished, and if the air leakage condition occurs in any one of the first to fifth test areas, the air leakage of the inflatable product is indicated, and the inflatable product is unqualified. At the moment, the worker can quickly determine the position of air leakage by knowing which test area has the air leakage condition, so that the subsequent repair work is greatly facilitated. In this embodiment, each test area on the test mask 1 is divided into virtual partitions, and there is no separation between the test areas. Of course, in the practical application process, a corresponding isolation structure may be arranged on the test cover 1, so as to separate each test area to a certain extent, but the isolation structure should not damage the inflatable product 2 to be detected.
As shown in fig. 3, in order to further reduce the detection time, in this embodiment, the detection pipeline 4 of each test area is further connected to the air extractor 6, and after the connection of the detection pipeline 4 is completed, the air extractor 6 starts to extract air from the inner cavity of the test mask 1 during time T and in the subsequent detection process. The arrangement of the air extracting device 6 increases the internal and external pressure difference of the inflatable product 2 to be detected in the test cover 1. If the inflatable product 2 to be detected has air leakage, under the condition that the difference between internal pressure and external pressure is large, helium of the inflatable product 2 to be detected can be quickly leaked out from an air leakage position, and the helium mass spectrometer 3 can also be used for quickly detecting whether air leakage occurs or not, so that the time consumed by air leakage is reduced.
Compared with the prior art, the air leakage detection method has the following beneficial effects:
firstly, the test cover 1 is divided into a plurality of test areas, and the helium mass spectrometer 3 adopts a mode of detecting each test area one by one. The arrangement reduces the diffusion range of the leaked helium, so that the helium mass spectrometer 3 can detect whether the helium leaks or not as long as each leakage point diffuses in the test area where the leakage point is located. And because each test area has set up a plurality of inspection holes, so, the helium that each gas leakage point leaks out need not to fill full test area, and whether helium mass spectrometer 3 just can detect out the gas leakage, has reduced the gas leakage and has detected the time that takes.
Secondly, because the diffusion range of the leaked gas is reduced, the helium concentration can be reduced when the mixed gas filled in the inflatable product 2 to be detected is filled, and the gas leakage detection cost is reduced. In this embodiment, the helium concentration is about 3% at the lowest, and certainly, if more test areas are divided on the test cover 1 and each test area is provided with more detection holes, the helium concentration in the mixed gas can be lower.
Thirdly, the helium mass spectrometer 3 adopts a one-by-one detection mode for each test area, so that the gas leakage area can be accurately positioned, the search range of the gas leakage hole is further reduced, and convenience is provided for the repair work of subsequent gas filling products.
The above description is only exemplary of the present invention and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above exemplary embodiments according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (5)
1. A method for detecting air leakage of an inflatable product is characterized in that: the method comprises the following steps
Filling a mixed gas into an inflatable product to be detected, wherein the mixed gas contains the gas to be detected;
placing an inflatable product to be detected into a sealed test cover, wherein the test cover is provided with more than two test areas, and each test area is provided with a plurality of detection holes;
connecting each detection hole to a gas tester through a detection pipeline, and connecting the detection holes in different test areas to the gas tester through different detection pipelines; the gas tester is used for detecting gas to be detected;
after the test area is placed for T time, gas samples of all the test areas are sequentially extracted and sequentially enter a gas tester for detection;
and when all the test areas are detected, the air leakage detection of the inflatable product to be detected is finished, and if only one test area detects the gas to be detected, the air leakage of the inflatable product to be detected is indicated.
2. A method of detecting air leakage from an inflatable product as claimed in claim 1, wherein: and a control valve is arranged on the detection pipeline of each test area, when the gas tester detects a certain test area, the control valve on the detection pipeline of the test area is opened, and the control valves on the detection pipelines of other test areas are closed.
3. A method of detecting air leakage from an inflatable product as claimed in claim 1, wherein: and the detection pipeline of each test area is also connected with an air exhaust device, and after the detection pipeline is connected, the air exhaust device is started to exhaust the inner cavity of the test cover in T time and the subsequent detection process.
4. A method of detecting air leakage from an inflatable product as claimed in claim 1, wherein: the gas tester is a gas mass spectrometer.
5. A method of detecting air leakage from an inflatable product as claimed in claim 1, wherein: the gas to be detected is helium or sulfur hexafluoride, and the gas tester is a helium tester or a sulfur hexafluoride tester.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110171163.6A CN112763152A (en) | 2021-02-08 | 2021-02-08 | Air leakage detection method of inflatable product |
| MX2023008847A MX2023008847A (en) | 2021-02-08 | 2022-02-08 | A gas leakage detection method for an inflatable product. |
| PCT/IB2022/051119 WO2022168065A1 (en) | 2021-02-08 | 2022-02-08 | A gas leakage detection method for an inflatable product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110171163.6A CN112763152A (en) | 2021-02-08 | 2021-02-08 | Air leakage detection method of inflatable product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112763152A true CN112763152A (en) | 2021-05-07 |
Family
ID=75705306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110171163.6A Pending CN112763152A (en) | 2021-02-08 | 2021-02-08 | Air leakage detection method of inflatable product |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN112763152A (en) |
| MX (1) | MX2023008847A (en) |
| WO (1) | WO2022168065A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296122B (en) * | 2023-05-05 | 2023-09-22 | 深圳市海瑞思自动化科技有限公司 | Helium mass spectrum type leak detection method |
| CN117129160B (en) * | 2023-08-25 | 2024-03-26 | 江苏舒茨测控设备股份有限公司 | Early warning and alarming method, system, terminal and storage medium of component airtight detection device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5779422A (en) * | 1980-11-05 | 1982-05-18 | Toshiba Corp | Leak test device |
| US7905132B1 (en) * | 2007-08-14 | 2011-03-15 | LACO Technologies, Inc. | Leak testing using tracer gas permeable membrane |
| DE102015005833A1 (en) * | 2015-05-07 | 2016-11-10 | Sartorius Stedim Biotech Gmbh | Method and device for an integrity test of a test container |
-
2021
- 2021-02-08 CN CN202110171163.6A patent/CN112763152A/en active Pending
-
2022
- 2022-02-08 MX MX2023008847A patent/MX2023008847A/en unknown
- 2022-02-08 WO PCT/IB2022/051119 patent/WO2022168065A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022168065A1 (en) | 2022-08-11 |
| MX2023008847A (en) | 2024-01-31 |
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