CN104568338A - Device for testing product sealing performance - Google Patents
Device for testing product sealing performance Download PDFInfo
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- CN104568338A CN104568338A CN201310496303.2A CN201310496303A CN104568338A CN 104568338 A CN104568338 A CN 104568338A CN 201310496303 A CN201310496303 A CN 201310496303A CN 104568338 A CN104568338 A CN 104568338A
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- stop valve
- port
- product
- transparent vessel
- outlet
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000007789 sealing Methods 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000008676 import Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a device for testing the sealing performance of a product, and relates to gas leakage detection equipment. In the device, a high-pressure air source is respectively communicated with an inlet of a second stop valve and an inlet of a capillary through a first stop valve, and an outlet of the second stop valve is respectively communicated with an air inlet port of a product to be detected and an upper port of a sealed transparent container; the lower port of the transparent container is communicated with the outlet of the capillary tube; the transparent container is filled with water to form a water column. The invention solves the problem of complex structure of gas leakage detection equipment, and has low cost and simple and convenient operation. Is easy to be popularized and applied in various industrial departments.
Description
Technical field
The present invention relates to a kind of gas leak detection instrument.
Background technology
In the past in order to testing product hermeticity, whether the mode adopting water testing machine to pour into water under high pressure in test product, observed and have water to leak out more.Water testing machine is equipped with water pump, water tank and test water.After detection, the test water in product must be emitted; These water are wasted and pollute the environment.People work out gas leak detection instrument in recent years, utilize high-pressure air source to inflate in test product through reduction valve and pipeline, and with the change of gaseous tension in the electronic device testing product being equipped with high-precision pressure sensor.It is ZL200420115902.1 that such as Chinese utility model patent instructions CN2743817Y discloses the patent No., name is called the technical scheme of " direct pressure type gas leakage detector ", propose by source of the gas and reduction valve, 2/2-way stop valve SV1, two-position three-way valve SV2, test port A is connected in series, test port B is connected in series with two-position three-way valve SV3 and outer test port C, pressure transducer is connected with between test port B and two-position three-way valve SV3, tested container is connected with test port B with test port A, and benchmark container is connected with outer test port C; Or benchmark container C is connected with test port B with test port A, is connected with outer test port C by volume container.High-precision pressure transducer is adopted to carry out the Control & data acquisition process of measuring process as detection part and PC application.This device measuring precision is high, and automaticity is high.But it is simpler that people wish to develop structure, and the gas leak detection instrument that cost is lower, to adapt to the needs of the various product quick leak-checking of industrial sector.
Summary of the invention
It is simple that the present invention aims to provide a kind of structure, and the device of cheap testing product hermeticity can.
Technical scheme of the present invention is: a kind of device of testing product hermeticity, high-pressure air source is communicated with the import of the second stop valve and the import of kapillary respectively through the first stop valve, and the outlet of the second stop valve is communicated with the upper port of the air inlet port of test product and the transparent vessel of a sealing respectively; The lower port of this transparent vessel is communicated with the outlet of kapillary; Fill water in this transparent vessel, form water column.Open the first stop valve and the second stop valve, the gas of high-pressure air source enters in test product.Pressure now due to kapillary two ends is identical, and the water column in transparent vessel is tranquil.After closing the second stop valve, if the sealing of test product has problem, gas wherein will to external leakage, and pressure reduces; Thus the pressure at transparent vessel upper port place is lower than the pressure at capillary outlet place, gas is had to enter the bubble being formed in the water column of transparent vessel and upwards rise from capillary outlet.After closing the second stop valve, if the sealing of test product is no problem, then the water column of transparent vessel still keeps static.Operator by the water column of observation transparent vessel, can get information about the sealing of test product.
The device of a kind of testing product hermeticity of the present invention utilizes kapillary to coordinate with the water column in transparent vessel, reflects tested product sealing intuitively.Structure of the present invention is simple, cheap, rapidly easy to operate.The present invention, compared with existing electronic type gas leak detection instrument, also has good stability, advantage for ease of maintenaince.The present invention can effectively reduce the production cost of test product, is easy to apply in quick leak-checking industrial sector in various needs.
Accompanying drawing explanation
Fig. 1 is the structural representation of a device embodiment of testing product hermeticity of the present invention.
Embodiment
The structure of a device embodiment of testing product hermeticity of the present invention, as shown in Figure 1.The high-pressure air source 1 of this device is communicated with the import of the second stop valve 7 and the import of kapillary 4 respectively through the first stop valve 2 and pipeline 3.The outlet of the second stop valve 7 is through pipeline 8 connecting pipe 6 and pipeline 9.Pipeline 9 is communicated with the air inlet port of test product 10.The upper port 51 of the transparent vessel 5 of pipeline 6 connected sum sealing.The lower port 52 of this transparent vessel 5 is communicated with the outlet of kapillary 4.Fill water in this transparent vessel 5, form water column 53.
During detection, open the first stop valve 2 and the second stop valve 7, the gas of high-pressure air source 1 enters in test product through pipeline 3, pipeline 8, pipeline 9.This gas arrives the import of kapillary 4 through pipeline 3 simultaneously, and this gas arrives the upper port 51 of transparent vessel 5 through pipeline 6.The water column 53 of pressure in transparent vessel 5 of this gas is delivered to the outlet of kapillary 4.Pressure now due to kapillary 4 two ends is identical, does not have gas and flows through from kapillary 4.Water column 53 in transparent vessel 5 is tranquil.
After closing the second stop valve 7, if the sealing of test product 10 has problem, gas wherein will to external leakage, and the gaseous tension in test product 10, pipeline 8, pipeline 9, pipeline 6 reduces; And gaseous tension in pipeline 3 is constant.Thus the gaseous tension at transparent vessel 5 upper port 51 place is lower than the gaseous tension in kapillary 4 exit, just has gas and flows through from kapillary 4, and the bubble that in the water column 53 entering transparent vessel 5 from kapillary 4 outlet, formation is upwards risen.
After closing the second stop valve 7, if the sealing of test product 10 is no problem, then the water column 53 of transparent vessel 5 still keeps static.
So operator by the water column 53 of observation transparent vessel 5, can get information about the sealing of test product 10.
After detection, first should close the first stop valve 2, then make pipeline 9 be separated with the air inlet port of test product 10.After pipeline 9 is connected with the air inlet port of new test product 10, just can carry out quick leak-checking to it.
The above, be only present pre-ferred embodiments; But not limiting scope of the invention process with this, equivalence change and the modification done according to technical scheme of the present invention and description, all should belong to the scope that the present invention is contained.
Claims (1)
1. the device of a testing product hermeticity, it is characterized in that: high-pressure air source is communicated with the import of the second stop valve and the import of kapillary respectively through the first stop valve, the outlet of the second stop valve is communicated with the upper port of the air inlet port of test product and the transparent vessel of a sealing respectively; The lower port of this transparent vessel is communicated with the outlet of kapillary; Fill water in this transparent vessel, form water column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310496303.2A CN104568338A (en) | 2013-10-20 | 2013-10-20 | Device for testing product sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310496303.2A CN104568338A (en) | 2013-10-20 | 2013-10-20 | Device for testing product sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568338A true CN104568338A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310496303.2A Pending CN104568338A (en) | 2013-10-20 | 2013-10-20 | Device for testing product sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104568338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414414A (en) * | 2017-12-15 | 2018-08-17 | 南京利德东方橡塑科技有限公司 | Resistance to combustion gas permeability experimental rig |
-
2013
- 2013-10-20 CN CN201310496303.2A patent/CN104568338A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414414A (en) * | 2017-12-15 | 2018-08-17 | 南京利德东方橡塑科技有限公司 | Resistance to combustion gas permeability experimental rig |
| CN108414414B (en) * | 2017-12-15 | 2023-09-22 | 南京利德东方橡塑科技有限公司 | Gas permeation resistance test device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |