CN101201286A - Device for testing product hermeticity - Google Patents

Device for testing product hermeticity Download PDF

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Publication number
CN101201286A
CN101201286A CNA2007100097365A CN200710009736A CN101201286A CN 101201286 A CN101201286 A CN 101201286A CN A2007100097365 A CNA2007100097365 A CN A2007100097365A CN 200710009736 A CN200710009736 A CN 200710009736A CN 101201286 A CN101201286 A CN 101201286A
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CN
China
Prior art keywords
port
test
transparent vessel
communicated
stop valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2007100097365A
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Chinese (zh)
Inventor
李越
Original Assignee
李越
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 李越 filed Critical 李越
Priority to CNA2007100097365A priority Critical patent/CN101201286A/en
Publication of CN101201286A publication Critical patent/CN101201286A/en
Pending legal-status Critical Current

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Abstract

The invention provides a device to test the product leak tightness, and relates to a gas leakage detection device. High pressure gas supply in the device is communicated with the inlet of a second disconnecting valve and the inlet of a capillary through a first disconnecting valve. The outlet of the second disconnecting valve is communicated with the inlet port of a product to be detected and the upper port of a sealed transparent vessel. The lower port of the transparent vessel is communicated with the outlet of the capillary. Water is accommodated in the transparent vessel to form water columns. The invention solves the problem that the structure of the prior detection device is complicated. The cost of the invention is low. The invention is easy and simple to handle, and can be promoted and applied in various industry segments.

Description

A kind of device of testing product hermeticity
Technical field
The present invention relates to a kind of gas leakage detection equipment.
Background technology
In the past for testing product hermeticity, the mode that adopts water testing machine in test product, to pour into water under high pressure more, whether observe has water to leak out.Water testing machine is equipped with water pump, water tank and test water.After detection finishes, the test water in the product must be emitted; These water are wasted and pollute the environment.People work out the gas leakage detection equipment in recent years, utilize high-pressure air source to inflate in test product through reduction valve and pipeline, and with variation of gas pressure in the electronic device testing product that is equipped with high-precision pressure sensor.It is ZL 200420115902.1 that for example Chinese utility model patent instructions CN2743817Y discloses the patent No., name is called the technical scheme of " direct press type air-leakage detector ", proposition is 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, be connected with pressure transducer between test port B and the two-position three-way valve SV3, tested container is connected with test port B with test port A, and the benchmark container is connected with outer test port C; Perhaps the benchmark container C is connected with test port B with test port A, is connected with outer test port C by the volume container.Adopt high-precision pressure transducer to carry out the control and the data acquisition process of measuring process as detection part and programmable controller PLC.This device measuring precision height, the automaticity height.But it is simpler that people wish to develop structure, and the gas leakage detection equipment that cost is lower is to adapt to the needs of the various product quick leak-checkings of industrial sector.
Summary of the invention
The present invention aims to provide the device of testing product hermeticity a kind of simple in structure, cheap 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 and the import capillaceous of second stop valve respectively through first stop valve, and the outlet of second stop valve is communicated with the upper port of the transparent vessel of the air inlet port of test product and a sealing respectively; The lower port of this transparent vessel is communicated with outlet capillaceous; Fill water in this transparent vessel, form water column.Open first stop valve and second stop valve, the gas of high-pressure air source enters in the test product.This moment, the water column in the transparent vessel was tranquil because the pressure at kapillary two ends is identical.After closing second stop valve, if the sealing of test product has problem, gas wherein will be to external leakage, and pressure reduces; Thereby the pressure at transparent vessel upper port place is lower than the pressure at capillary outlet place, has gas to enter from capillary outlet and forms the bubble that upwards rises in the water column of transparent vessel.After closing second stop valve, if the sealing of test product is no problem, then the water column of transparent vessel still keeps static.The operator can get information about the sealing of test product by the water column of observation transparent vessel.
The device of a kind of testing product hermeticity of the present invention utilizes the interior water column of kapillary and transparent vessel to cooperate, and reflects the tested product sealing intuitively.The present invention is simple in structure, and is cheap, easy to operate rapid.The present invention compares with existing electronic type gas leakage detection equipment, 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 the quick leak-checking industrial sector in various the needs.
Description of drawings
Fig. 1 is the structural representation of an embodiment of device of testing product hermeticity of the present invention.
Embodiment
The structure of an embodiment of device 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 second stop valve 7 and the import of kapillary 4 respectively through first stop valve 2 and pipeline 3.The outlet of second stop valve 7 is through pipeline 8 connecting pipes 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 sums 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 first stop valve 2 and second stop valve 7, the gas of high-pressure air source 1 enters in the test product through pipeline 3, pipeline 8, pipeline 9.This gas is through the import of pipeline 3 arrival kapillaries 4 simultaneously, and this gas arrives the upper port 51 of transparent vessels 5 through pipeline 6.The water column 53 of the pressure of this gas in transparent vessel 5 is delivered to the outlet of kapillary 4.Do not have gas and from kapillary 4 flow through because the pressure at kapillary 4 two ends is identical this moment.Water column 53 in the transparent vessel 5 is tranquil.
After closing second stop valve 7, if the sealing of test product 10 has problem, gas wherein will be to external leakage, and the gaseous tension in test product 10, pipeline 8, pipeline 9, the pipeline 6 reduces; And the gaseous tension in the pipeline 3 is constant.Thereby the gaseous tension at transparent vessel 5 upper port 51 places is lower than the gaseous tension in kapillary 4 exits, just has gas and flows through from kapillary 4, and enters the water column 53 interior bubbles that upwards rise that form of transparent vessel 5 from kapillary 4 outlets.
After closing 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 the operator can get information about the sealing of test product 10 by the water column 53 of observation transparent vessel 5.
After detection finishes, should close first stop valve 2 earlier, pipeline 9 is separated with the air inlet port of test product 10.With after the air inlet port of new test product 10 is connected, just can carry out quick leak-checking at pipeline 9 to it.
The above only is preferred embodiment of the present invention; Yet do not limit scope of the invention process with this, the equivalence of doing according to technical scheme of the present invention and description changes and modification, 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 and the import capillaceous of second stop valve respectively through first stop valve, and the outlet of second stop valve is communicated with the upper port of the transparent vessel of the air inlet port of test product and a sealing respectively; The lower port of this transparent vessel is communicated with outlet capillaceous; Fill water in this transparent vessel, form water column.
CNA2007100097365A 2007-10-29 2007-10-29 Device for testing product hermeticity Pending CN101201286A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100097365A CN101201286A (en) 2007-10-29 2007-10-29 Device for testing product hermeticity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100097365A CN101201286A (en) 2007-10-29 2007-10-29 Device for testing product hermeticity

Publications (1)

Publication Number Publication Date
CN101201286A true CN101201286A (en) 2008-06-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007100097365A Pending CN101201286A (en) 2007-10-29 2007-10-29 Device for testing product hermeticity

Country Status (1)

Country Link
CN (1) CN101201286A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102393278A (en) * 2011-09-19 2012-03-28 武汉工程大学 Bidirectional sealing performance testing system of mechanical rapping device
CN101701864B (en) * 2009-12-04 2012-05-23 天津市塑料研究所 Rheid leakage testing device
CN101718611B (en) * 2009-11-19 2013-02-27 浙江吉利汽车研究院有限公司 Engine part and whole airtightness detection device
CN105473992A (en) * 2013-08-02 2016-04-06 英福康有限责任公司 Test leak device having an integrated pressure sensor
CN106248310A (en) * 2016-09-10 2016-12-21 桐乡市鑫朗智能科技有限公司 A kind of sealing property test equipment
CN106289659A (en) * 2016-09-10 2017-01-04 桐乡市鑫朗智能科技有限公司 A kind of tested steel moulds the bubble-tight device of adapter joint
CN106323560A (en) * 2016-09-10 2017-01-11 桐乡市鑫朗智能科技有限公司 Automatic sealing performance testing equipment
CN106441723A (en) * 2016-09-10 2017-02-22 桐乡市鑫朗智能科技有限公司 Automated air tightness testing machine
CN106441724A (en) * 2016-09-10 2017-02-22 桐乡市鑫朗智能科技有限公司 Airtightness test device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101718611B (en) * 2009-11-19 2013-02-27 浙江吉利汽车研究院有限公司 Engine part and whole airtightness detection device
CN101701864B (en) * 2009-12-04 2012-05-23 天津市塑料研究所 Rheid leakage testing device
CN102393278A (en) * 2011-09-19 2012-03-28 武汉工程大学 Bidirectional sealing performance testing system of mechanical rapping device
CN105473992A (en) * 2013-08-02 2016-04-06 英福康有限责任公司 Test leak device having an integrated pressure sensor
CN105473992B (en) * 2013-08-02 2018-12-07 英福康有限责任公司 Test leakage device with integrated sensor
CN106248310A (en) * 2016-09-10 2016-12-21 桐乡市鑫朗智能科技有限公司 A kind of sealing property test equipment
CN106289659A (en) * 2016-09-10 2017-01-04 桐乡市鑫朗智能科技有限公司 A kind of tested steel moulds the bubble-tight device of adapter joint
CN106323560A (en) * 2016-09-10 2017-01-11 桐乡市鑫朗智能科技有限公司 Automatic sealing performance testing equipment
CN106441723A (en) * 2016-09-10 2017-02-22 桐乡市鑫朗智能科技有限公司 Automated air tightness testing machine
CN106441724A (en) * 2016-09-10 2017-02-22 桐乡市鑫朗智能科技有限公司 Airtightness test device

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Open date: 20080618

C02 Deemed withdrawal of patent application after publication (patent law 2001)