CN104236806B - Airtightness detecting device and method for hollow glass - Google Patents

Airtightness detecting device and method for hollow glass Download PDF

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Publication number
CN104236806B
CN104236806B CN201410502697.2A CN201410502697A CN104236806B CN 104236806 B CN104236806 B CN 104236806B CN 201410502697 A CN201410502697 A CN 201410502697A CN 104236806 B CN104236806 B CN 104236806B
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casing
double glazing
inner chamber
air tight
case lid
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CN104236806A (en
Inventor
冯涛
谢君
赵琦
马辉
韩婷
张进军
陈俊飞
蒋良杰
李坤昌
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CRRC Chengdu Co Ltd
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CRRC Chengdu Co Ltd
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Abstract

The invention provides an airtightness detecting device and method for hollow glass. The device comprises a box, a box cover, a pressure gauge, a heating device and a temperature detecting device. The box is movably connected with the box cover. A filling port is formed in the box. The heating device is mounted in the inner cavity of the box. The pressure gauge and the temperature detecting device are respectively communicated with the inner cavity of the box. The method includes: placing the hollow glass into the inner cavity of the box, and connecting the box cover and the box in a sealed manner; filling the inner cavity of the box with testing water under the pressure reaches more than 40KPa, and heating the testing water to above 15 DEG C; maintaining pressure; acquiring airtightness testing result. The airtightness detecting device and method has the advantages that simple operation is achieved, high testing result reliability is achieved, hollow glass maintenance quality and airtightness detecting efficiency are increased, hollow glass airtightness detecting cost is lowered greatly, and product quality is guaranteed.

Description

A kind of air tight test device of double glazing and the method for inspection
Technical field
The present invention relates to double glazing gas leakage detection technique field, especially relate to a kind of air tight test of double glazing Device and the method for inspection.
Background technology
Existing passenger train glass for vehicle window great majority adopt double glazing, and this double glazing is using thirty years of age relatively Two sheets and the aluminum alloy frame including drier pass through high intensity, high-air-tightness compound binding agent bonding forms, and are one Plant and there is well heat-insulated, sound insulation value, high-performance glass that is beautiful and applicable and can reducing deadweight.
When the operation of passenger train reaches distance travelled number or the service life of regulation it is necessary to entirety is carried out to vehicle window Decompose maintenance, double glazing thereon is also required to again overhaul or whole updating.At present, double glazing is being carried out decompose weight After assembling or whole updating, only it is carried out with entirety and simulates salt fog test, to verify the sealing of double glazing.But, by It is more focused on the sealing between checking double glazing and window frame adhesive tape in salt fog test it is difficult to verify the two panels glass of double glazing Air-tightness between glass.If passenger train is operationally, there is gas leak phenomenon in double glazing, will have a strong impact on passenger train Riding quality.Further, since the structure of double glazing is special, the production of double glazing, dispatch from the factory that it is airtight accordingly to be also required to carry out Property test, to ensure the product quality of double glazing, but the existing detection means for double glazing is poor, detection efficiency Low, lead to testing cost higher.
Content of the invention
The technical problem to be solved in the present invention is:The problem existing for prior art, provides a kind of gas of double glazing Close property verifying attachment and the method for inspection, improve the air-leakage test efficiency of double glazing, reduce testing cost.
The technical problem to be solved in the present invention employs the following technical solutions to realize:A kind of air tight test of double glazing Device, including casing, case lid, pressure gauge and heater and temperature-detecting device, the mutually activity of described casing and case lid is even Connect, filler be provided with casing, cabinets cavity installs heater, described pressure gauge, temperature-detecting device respectively with case Intracoelomic cavity communicates.
Preferably, described casing is connected by pin-joint mechanism with case lid, and casing, case lid free end pass through compression lock mutually Lock or open.
Preferably, the place of contacting with each other between described casing and case lid is provided with sealing joint strip.
Preferably, described heater adopts electric tracing tube.
Preferably, described electric tracing tube arranges two, is separately mounted to the opposite sides of cabinets cavity.
Preferably, described temperature-detecting device includes temperature sensor and temperature indicator, described temperature sensor peace It is contained in cabinets cavity and be connected with the temperature indicator outside casing.
A kind of air tight test method of double glazing, comprises the steps:
Step 1, double glazing to be detected is placed in the cabinets cavity of above-mentioned air tight test device, by case lid with Casing seals against each other connection;
Step 2, by compression pump to injection testing water in the sealing inner chamber of casing, until pressure in box sealing inner chamber Value reaches more than 40KPa, and test water is heated to more than 15 DEG C by the heater using cabinets cavity;
Step 3, pressurize, and dwell time are more than 20 minutes.
Step 4 it was therefore concluded that, if there being vaporific phenomenon to produce inside the double glazing taking out, this double glazing air-tightness Test failure;If not having vaporific phenomenon to produce inside the double glazing taking out, this double glazing air tightness test is qualified.
Preferably, in described step 1, double glazing stratiform to be tested stacks some pieces.
Preferably, in described step 2, in box sealing inner chamber pressure value be 40~45KPa, test water water temperature be 25~ 30℃.
Compared with prior art, the invention has the beneficial effects as follows:Air tight test device and air-tightness using the present invention The method of inspection can be tested to the air-tightness of double glazing effectively, simple to operate, and test result reliability is high, pole The earth improves the repair quality of double glazing it is ensured that product quality, especially can improve the airtight of batch double glazing Property detection efficiency, therefore, significantly reduces the air-leakage test cost of double glazing.
Brief description
Fig. 1 is a kind of structural map of the air tight test device of double glazing of the present invention.
In figure marks:1- compression lock, 2- sealing joint strip, 3- case lid, 4- casing, 5- electric tracing tube, 6- filler, 7- temperature Degree sensor, 8- discharge port, 9- hinge, 10- pressure gauge, 11- double glazing, 12- test water, 13- temperature indicator.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with the accompanying drawings and be embodied as The present invention is described in detail for example.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, not For limiting the present invention.
Air tight test device for double glazing as shown in Figure 1, the openend of casing 4 therein is led to case lid 3 Cross hinge 9 pivot joint, case lid 3 can overturn with respect to casing 4, and case lid 3 is completely covered the openend of casing 4 in switching process, To realize fully sealing of casing 4.Electric tracing tube 5 is installed on the intracavity sidewall of casing 4, in the intracavity bottom, described of casing 4 The lower section of electric tracing tube 5 is provided with temperature sensor 7, and described temperature sensor 7 is with the temperature indicator 13 outside casing 4 even Connect.The bottom of described casing 4 is provided with filler 6, discharge port 8 and is communicated with casing 4 inner chamber respectively.Described case lid 3 connects There is pressure gauge 10, the chamber pressure after pressure gauge 10 can monitor casing 4 sealing;Pass through compression between case lid 3 and casing 4 Lock 1 is realized mutual quick locking and is connected or quickly open.In order to improve after case lid 3 and casing 4 mutually buckle and be connected Sealing property, can arrange sealing joint strip 2, the fluid sealant shown in Fig. 1 in case lid 3 bottom with casing 4 openend surrounding contact position Bar 2 is fixedly connected with case lid 3.
When air tight test being carried out to double glazing using above-mentioned air tight test device, its specific method of inspection As follows:
First, double glazing 11 to be detected is placed in the square cavities of casing 4, then case lid 3 is passed through with casing 4 Compression lock 1 lock sealing connects.Check to realize batch, improve the air-tightness detection efficiency, double glazing 11 therein can Stack some pieces with stratiform, as shown in Figure 1.
Then, block the discharge port 8 of casing 4 bottom, reuse compression pump and pass through the sealing inner chamber to casing 4 for the filler 6 Middle injection testing water 12, and observe the reading of pressure gauge 10, until the pressure value of pressure gauge 10 display reaches more than 40KPa being Only;Meanwhile, using electric tracing tube 5, continuous heating is carried out to test water 12, temperature sensor 7 feedback temperature is to temperature indicator 13, until the temperature of test water 12 is controlled to more than 15 DEG C.For the ease of the monitoring to casing 4 chamber pressure, therein Pressure gauge 10 can select pressure digital display meter, can directly read pressure value by pressure digital display meter.
Next, carrying out pressurize test, and the dwell time is more than 20 minutes.After pressurize terminates, open case lid 3, take Go out the double glazing 11 of casing 4 inner chamber, observe and inside double glazing 11, whether have vaporific phenomenon to occur.
Finally, vaporific phenomenon whether is had to draw judgement conclusion according to inside the double glazing 11 taking out.If taken out Double glazing 11 inside have vaporific phenomenon to produce, then have space at explanation double glazing 11 spacer bar, this double glazing 11 Air tightness test is unqualified;If not having vaporific phenomenon to produce inside the double glazing 11 taking out, this double glazing 11 is described Air-tightness meet use requirement, be certified products.
When above-mentioned air tightness test being carried out to double glazing 11 under low temperature environment in the winter time, through repetition test, improve and survey Examination parameter, when test water 12 water temperature in 25 DEG C~30 DEG C, test pressure in 40~45KPa when, carry out pressurize test 30 points Clock, easily not only can form atomizating phenomenon by pore by guarantee test water 12, can also avoid because winter temperature is low shadow Ring the reliability of air-tight test.When needing to carry out batch air tightness test to double glazing 11, such as double glazing batch Amount produces, quality inspection of dispatching from the factory, and in order to ensure the reliability of test result, improve product quality, takes into account testing efficiency, puts into casing 4 Double glazing 11 in inner chamber can be stacked with stratiform, but stack quantity can not be too many, the test water 12 of addition typically to be met Whole double glazings 11 can be flooded completely.The discharge port 8 of casing 4 bottom after the completion of air tightness test, can be opened, will Test water 12 discharges casing 4, takes out whole double glazings 11, so that air tight test device carries out the air-tightness of next round Test.
Electric tracing tube 5 in the air tight test device of the present invention can arrange two, described 5 points of two electric tracing tubes It is not arranged in the two lateral walls of casing 4 inner chamber, as shown in figure 1, so the test water 12 in casing 4 inner chamber can be entered Row Synchronous Heating, and make full use of the convection heat transfer' heat-transfer by convection characteristic of test water 12 so that the water of double glazing 11 surrounding to be tested Temperature rapidly reaches unanimity, and is conducive to shortening the dwell time that vaporific phenomenon produces, thus improve air-leakage test efficiency.For Reduce air tightness test cost further, the air tight test device of the present invention can not adopt above-mentioned temperature sensor 7 With temperature indicator 13, directly it is connected with casing 4 using conventional industrial thermometer, by thermometer, casing 4 is sealed Test water 12 in inner chamber carries out real-time temperature monitoring.
When passenger train carries out repair in shop it is also possible to effectively be entered to the double glazing of maintenance or renewal by the present invention Air-leakage test at parting bead in the ranks.Due to not only can drastically increase detection efficiency with batch detection, and testing conditions are same One, it is ensured that the reliability of testing result, drastically increases the repair quality of double glazing, significantly reduces enterprise simultaneously The after cost paid because of double glazing gas leakage, meeting passenger train longtime running for the double glazing after entrucking provides high-quality Product quality guarantee.
It is pointed out that the air tight test device of the present invention, casing 4 therein and case lid 3 are not limited by hinge 9 Pivot joint it is also possible in case lid 3, casing 4 surrounding setting a number of compression lock 1 so that between casing 4 and case lid 3 completely Mutual lock sealing is realized by compression lock 1 or opens.So equally also can complete the air tightness test of the present invention, but Test operation is loaded down with trivial details, leads to testing efficiency to reduce.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention it is noted that all Any modification, equivalent and improvement of being made within the spirit and principles in the present invention etc., should be included in the guarantor of the present invention Within the scope of shield.

Claims (9)

1. a kind of double glazing air tight test device it is characterised in that:Including casing (4), case lid (3), pressure gauge (10) And heater and temperature-detecting device, described casing (4) is mutually flexibly connected with case lid (3), in the setting of casing (4) bottom There is the filler (6) for sealing injection testing water in inner chamber to casing (4), in casing (4) inner chamber, heater, institute are installed State pressure gauge (10), temperature-detecting device to communicate with casing (4) inner chamber respectively.
2. a kind of double glazing according to claim 1 air tight test device it is characterised in that:Described casing (4) It is connected by pin-joint mechanism with case lid (3), casing (4), case lid (3) free end pass through compression lock (1) and mutually lock or beat Open.
3. a kind of double glazing according to claims 1 or 2 air tight test device it is characterised in that:Described The place of contacting with each other between casing (4) and case lid (3) is provided with sealing joint strip (2).
4. a kind of double glazing according to claims 1 or 2 air tight test device it is characterised in that:Described Heater adopts electric tracing tube (5).
5. a kind of double glazing according to claim 4 air tight test device it is characterised in that:Described electric tracing Pipe (5) arranges two, is separately mounted to the opposite sides of casing (4) inner chamber.
6. a kind of double glazing according to claims 1 or 2 air tight test device it is characterised in that:Described Temperature-detecting device includes temperature sensor (7) and temperature indicator (13), and described temperature sensor (7) is arranged on casing (4) Inner chamber is simultaneously connected with the temperature indicator (13) outside casing (4).
7. a kind of double glazing air tight test method it is characterised in that:Comprise the steps:
Step 1, double glazing (11) to be detected is placed on the air tight test device as described in any one of claim 1-6 Casing (4) inner chamber in, case lid (3) is sealed against each other with casing (4) and is connected;
Step 2, by compression pump to injection testing in the sealing inner chamber of casing (4) with water (12), until casing (4) seals inner chamber Middle pressure value reaches more than 40KPa, and test water (12) is heated to more than 15 DEG C by the heater using casing (4) inner chamber;
Step 3, pressurize, and dwell time are more than 20 minutes;
Step 4 it was therefore concluded that, if there being vaporific phenomenon to produce inside the double glazing (11) taking out, this double glazing (11) gas Close property test failure;If not having vaporific phenomenon to produce inside the double glazing (11) taking out, this double glazing (11) is airtight Property test passes.
8. a kind of double glazing according to claim 7 air tight test method it is characterised in that:In described step 1, Double glazing (11) stratiform to be tested stacks some pieces.
9. a kind of double glazing according to claim 7 or 8 air tight test method it is characterised in that:Described step In rapid 2, in casing (4) sealing inner chamber, pressure value is 40~45KPa, and test water (12) water temperature is 25~30 DEG C.
CN201410502697.2A 2014-09-26 2014-09-26 Airtightness detecting device and method for hollow glass Active CN104236806B (en)

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CN104236806B true CN104236806B (en) 2017-02-15

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Publication number Priority date Publication date Assignee Title
CN104865013A (en) * 2015-06-18 2015-08-26 英贝儿(天津)测控设备有限责任公司 Test sample holder for hollow glass testing machine

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JP2992616B2 (en) * 1998-03-25 1999-12-20 鹿島建設株式会社 Airtight test equipment
CN201522360U (en) * 2009-11-16 2010-07-07 中国人民解放军空军装备研究院雷达与电子对抗研究所 Environment tester combining rainfall and raindrop
DE102010016919B4 (en) * 2010-05-12 2011-12-01 Armin Schwab Insulating component, method for producing an insulating component having an insulation space, and method for checking the state of the atmosphere in an insulation space
CN201852678U (en) * 2010-08-16 2011-06-01 浙江吉利汽车研究院有限公司 Water spray testing machine
CN102967415A (en) * 2012-11-14 2013-03-13 天津天维移动通讯终端检测有限公司 Leakproofness tester
CN204142438U (en) * 2014-09-26 2015-02-04 南车成都机车车辆有限公司 A kind of air tight test device of double glazing

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Address after: 610057 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31

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