CN201340328Y - Hollow container breathing property testing device using differential pressure method - Google Patents
Hollow container breathing property testing device using differential pressure method Download PDFInfo
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- CN201340328Y CN201340328Y CNU2009200187968U CN200920018796U CN201340328Y CN 201340328 Y CN201340328 Y CN 201340328Y CN U2009200187968 U CNU2009200187968 U CN U2009200187968U CN 200920018796 U CN200920018796 U CN 200920018796U CN 201340328 Y CN201340328 Y CN 201340328Y
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Abstract
The utility model discloses a hollow container breathing property testing device using differential pressure method. The hollow container breathing property testing device using differential pressure method has clear principle, accurate testing, low cost and simple structure which can test breathing property of the hollow container using differential pressure method conveniently. The hollow container breathing property testing device using differential pressure method includes a vacuumizing device, the vacuumizing device communicates with the hollow container through a sealing device and a pervasion chamber support plate, the hollow container is filled with filler, the vacuumizing device also connects with the test device.
Description
Technical field
The utility model relates to a kind of hollow container ventilation property test device that uses pressure differential method.
Background technology
The gas penetration potential of hollow container integral body can only realize by equal-pressure method before detecting.The gaseous tension of sample both sides equates in equal-pressure method, and the hollow container wall is passed through in the testing gas concentration difference infiltration that test gas relies on the sample both sides to exist.Yet to control the testing gas concentration difference of sample both sides accurately and efficiently during the test of underway electrical condenser overall air permeability and be not easy, especially when hollow container profile more complicated the time, more can bring influence to the accuracy of test data.Pressure differential method is the basic methods during the film gas penetration potential detects, when detecting, need vacuumize to the utmost point low-pressure to the space (infiltration chamber low-pressure side) of sample one side, and keep the test gas of certain pressure, so carrying out to add filter paper to support sample in infiltration chamber low-pressure side when film detects at sample opposite side (infiltration high-pressure side, chamber).But owing to lack the effective support method, hollow container can be damaged under the pressure differential effect, causes test to carry out after sample becomes hollow container.As seen, pressure differential is to cause using pressure differential method to carry out the main reason of hollow container gas penetration potential test to the destruction of hollow container.
The utility model content
The purpose of this utility model is exactly to detect the problem that exists in the hollow container gas penetration potential technology in order to solve above-mentioned use pressure differential method, a kind of hollow container ventilation property test device that uses pressure differential method is provided, it can effectively offset in penetration testing pressure differential to the destruction of hollow container, and can remedy the defective of using equal-pressure method to detect the hollow container gas penetration potential.
For achieving the above object, the utility model adopts following technical proposals:
A kind of hollow container ventilation property test device that uses pressure differential method, it comprises vacuum extractor, and this device is communicated with hollow container by packoff and infiltration chamber supporting plate, is provided with filling material in the hollow container, and vacuum extractor also is communicated with pick-up unit.
Described vacuum extractor comprises vacuum pump, and it is connected with the pressure transducer connecting line by the pipeline that has infiltration chamber low-pressure side stop valve, and pressure transducer connecting line one end is connected with pick-up unit, and the other end then is communicated with hollow container.
Described packoff is the hollow container sealing part, and hollow container is fixed together by hollow container sealing part and infiltration chamber supporting plate.
Described hollow container outside is provided with the test gas cover, and both all are fixed together with infiltration chamber supporting plate, and the test gas cover is communicated with compressed air source unit, and the test gas cover also is communicated with vacuum extractor.
Described compressed air source unit comprises source of the gas, it and the test gas pipeline connection that has gas filling valve, and the test gas pipeline is divided into two branch roads, and a branch road is communicated with the test gas cover, and another branch road is provided with infiltration high-pressure side, chamber stop valve and is communicated with vacuum extractor.
Described pick-up unit is a pressure transducer.
The hollow container ventilation property test device of use pressure differential method of the present utility model, it comprises infiltration chamber, vacuum pump, pressure transducer, valve and pipeline etc.Described infiltration chamber comprises hollow container, filling material, hollow container sealing part, several parts of infiltration chamber supporting plate.In hollow container, add earlier filling material, by the hollow container sealing part hollow container and infiltration chamber supporting plate are fixed together again, hollow container inside, infiltration chamber supporting plate, and the pressure transducer connecting line form infiltration chamber low-pressure side, hollow container is outside to be infiltration high-pressure side, chamber.When beginning to test infiltration chamber low-pressure side is vacuumized, infiltration chamber low-pressure side stop valve is opened, and vacuum pump is opened.After vacuumizing end, vacuum pump cuts out, and infiltration chamber low-pressure side stop valve is closed.Infiltration high-pressure side, chamber is the test gas of certain pressure, making that hollow container is inside and outside forms certain pressure differential, under action of pressure, test gas penetrates in the hollow container by the hollow container wall, pressure in the pressure sensor monitoring hollow container changes, and calculates the gas penetration potential of hollow container by the ascending amount of unit interval internal pressure.Described filling material can be made with any materials low to gas adsorbability, that do not occur being out of shape when there is test pressure reduction in filling outside within it after full in hollow container.Fixing between described hollow container and the infiltration chamber pallet can use fluid sealant etc. to satisfy the any-mode that vacuum seal requires.
The utility model also has another kind of structure, promptly uses the hollow container ventilation property test device of pressure differential method to comprise several parts such as infiltration chamber (comprising test gas cover, hollow container, filling material, hollow container sealing part, several parts of infiltration chamber supporting plate), vacuum pump, pressure transducer, source of the gas, valve and pipeline in the utility model.In hollow container, add earlier filling material, by the hollow container sealing part hollow container and infiltration chamber supporting plate are fixed together again, by hollow container inside, infiltration chamber supporting plate, and the pressure transducer connecting line forms and permeates the chamber low-pressure side, then at the outside test gas cover that increases of hollow container, by test gas cover and the outside infiltration high-pressure side, chamber that forms of hollow container.When beginning to test (infiltration chamber low-pressure side and infiltration high-pressure side, chamber) inside and outside the hollow container vacuumized, this moment, gas filling valve was closed, and infiltration chamber low-pressure side stop valve, infiltration high-pressure side, chamber stop valve are opened, and vacuum pump is opened.After vacuumizing end, vacuum pump cuts out, infiltration chamber low-pressure side stop valve, infiltration high-pressure side, chamber stop valve are all closed, gas filling valve is opened, and source of the gas begins to charge into test gas to infiltration high-pressure side, chamber, makes that hollow container is inside and outside to form certain pressure differential, under action of pressure, test gas penetrates in the hollow container by the hollow container wall, and the pressure in the pressure sensor monitoring hollow container changes, and calculates the gas penetration potential of hollow container by the ascending amount of unit interval internal pressure.Filling material can be made with any materials low to gas adsorbability, that do not occur being out of shape when there is test pressure reduction in filling outside within it after full in hollow container.Fixing between hollow container, test gas cover and the infiltration chamber pallet can use fluid sealant etc. to satisfy the any-mode that vacuum seal requires.
Advantage of the present utility model is:
1. realize utilizing pressure differential method to detect the hollow container gas penetration potential, can effectively remedy the defective in the equal-pressure method hollow container gas penetration potential method of testing.
2. principle is clear, simple in structure.
Description of drawings:
Fig. 1 is the utility model structural drawing;
Fig. 2 is another example structure of the utility model figure.
Wherein, 1. filling material; 2. hollow container; 3. hollow container sealing part; 4. permeate the chamber supporting plate; 5. permeate chamber low-pressure side stop valve; 6. vacuum pump; 7. pressure transducer; 8. pressure transducer connecting line; 9. permeate high-pressure side, chamber stop valve; 10. gas filling valve; 11. source of the gas; 12. test gas cover.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Embodiment 1:
Among Fig. 1, the utility model comprises several parts such as infiltration chamber (comprising hollow container 2, filling material 1, hollow container sealing part 3, infiltration chamber supporting plate more than 4 parts), vacuum pump 6, pressure transducer 7, valve and pipeline.
In hollow container 2, add filling material 1 earlier, by hollow container sealing part 3 hollow container 2 and infiltration chamber supporting plate 4 are fixed together again, hollow container 2 inside, infiltration chamber supporting plate 4, and pressure transducer connecting line 8 form infiltration chamber low-pressure sides, hollow container 2 is outside to be infiltration high-pressure side, chamber.When beginning to test infiltration chamber low-pressure side is vacuumized, infiltration chamber low-pressure side stop valve 5 is opened, and vacuum pump 6 is opened.After vacuumizing end, vacuum pump 6 cuts out, and infiltration chamber low-pressure side stop valve 5 is closed.Infiltration high-pressure side, chamber is the test gas of certain pressure, making that hollow container 2 is inside and outside forms certain pressure differential, under action of pressure, test gas penetrates in the hollow container 2 by the hollow container wall, pressure in the pressure transducer 7 monitoring hollow containers 2 changes, and calculates the gas penetration potential of hollow container 2 by the ascending amount of unit interval internal pressure.Filling material 1 can be made with any materials low to gas adsorbability, that do not occur being out of shape when there is test pressure reduction in filling outside within it after full in hollow container 2.Fixing between hollow container 2 and the infiltration chamber pallet 4 can use fluid sealant etc. to satisfy the any-mode that vacuum seal requires.
Embodiment 2:
Among Fig. 2, the utility model comprises several parts such as infiltration chamber (comprising test gas cover 12, hollow container 2, filling material 1, hollow container sealing part 3, infiltration chamber supporting plate more than 4 parts), vacuum pump 6, pressure transducer 7, source of the gas 11, valve and pipeline.
In hollow container 2, add filling material 1 earlier, by hollow container sealing part 3 hollow container 2 and infiltration chamber supporting plate 4 are fixed together again, by hollow container inside, infiltration chamber supporting plate 4, and pressure transducer connecting line 8 forms and permeates the chamber low-pressure side, then at the hollow container 2 outside test gas covers 12 that increase, by test gas cover 12 and the outside infiltration high-pressure side, chamber that forms of hollow container.When beginning to test hollow container 2 inside and outside (infiltration chamber low-pressure side and infiltration high-pressure side, chamber) is vacuumized, this moment, gas filling valve 10 was closed, and infiltration chamber low-pressure side stop valve 5, infiltration high-pressure side, chamber stop valve 9 are opened, and vacuum pump 6 is opened.After vacuumizing end, vacuum pump 6 cuts out, infiltration chamber low-pressure side stop valve 5, infiltration high-pressure side, chamber stop valve 9 are all closed, gas filling valve 10 is opened, source of the gas 11 beginnings charge into test gas to infiltration high-pressure side, chamber, making that hollow container 2 is inside and outside forms certain pressure differential, under action of pressure, test gas penetrates in the hollow container 2 by the hollow container wall, pressure in the pressure transducer 7 monitoring hollow containers 2 changes, and calculates the gas penetration potential of hollow container 2 by the ascending amount of unit interval internal pressure.Filling material 1 can be made with any materials low to gas adsorbability, that do not occur being out of shape when there is test pressure reduction in filling outside within it after full in hollow container 2.Fixing between hollow container 2, test gas cover 12 and the infiltration chamber pallet 4 can use fluid sealant etc. to satisfy the any-mode that vacuum seal requires.
Claims (6)
1. hollow container ventilation property test device that uses pressure differential method, it is characterized in that it comprises vacuum extractor, this device is communicated with hollow container by packoff and infiltration chamber supporting plate, be provided with filling material in the hollow container, vacuum extractor also is connected with pick-up unit.
2. the hollow container ventilation property test device of use pressure differential method as claimed in claim 1, it is characterized in that, described vacuum extractor comprises vacuum pump, it is connected with the pressure transducer connecting line by the pipeline that has infiltration chamber low-pressure side stop valve, pressure transducer connecting line one end is connected with pick-up unit, and the other end then is communicated with hollow container.
3. the hollow container ventilation property test device of use pressure differential method as claimed in claim 1 is characterized in that, described packoff is the hollow container sealing part, and hollow container is fixed together by hollow container sealing part and infiltration chamber supporting plate.
4. the hollow container ventilation property test device of use pressure differential method as claimed in claim 1, it is characterized in that described hollow container outside is provided with the test gas cover, both all are fixed together with infiltration chamber supporting plate, the test gas cover is communicated with compressed air source unit, and the test gas cover also is communicated with vacuum extractor.
5. the hollow container ventilation property test device of use pressure differential method as claimed in claim 4, it is characterized in that, described compressed air source unit comprises source of the gas, it and the test gas pipeline connection that has gas filling valve, the test gas pipeline is divided into two branch roads, a branch road is communicated with the test gas cover, and another branch road is provided with infiltration high-pressure side, chamber stop valve and is communicated with vacuum extractor.
6. the hollow container ventilation property test device of use pressure differential method as claimed in claim 1 or 2 is characterized in that, described pick-up unit is a pressure transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200187968U CN201340328Y (en) | 2009-02-06 | 2009-02-06 | Hollow container breathing property testing device using differential pressure method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200187968U CN201340328Y (en) | 2009-02-06 | 2009-02-06 | Hollow container breathing property testing device using differential pressure method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201340328Y true CN201340328Y (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200187968U Expired - Fee Related CN201340328Y (en) | 2009-02-06 | 2009-02-06 | Hollow container breathing property testing device using differential pressure method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201340328Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808474A (en) * | 2012-11-14 | 2014-05-21 | 广州市特种承压设备检测研究院 | Method for checking sealing performance of safety valve |
| CN107356379A (en) * | 2017-06-08 | 2017-11-17 | 楚天科技股份有限公司 | Medicine bottle rolls lid leak hunting method |
-
2009
- 2009-02-06 CN CNU2009200187968U patent/CN201340328Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808474A (en) * | 2012-11-14 | 2014-05-21 | 广州市特种承压设备检测研究院 | Method for checking sealing performance of safety valve |
| CN107356379A (en) * | 2017-06-08 | 2017-11-17 | 楚天科技股份有限公司 | Medicine bottle rolls lid leak hunting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20110206 |