CN202649070U - Crosslinking degree test device for solar battery packaging material - Google Patents
Crosslinking degree test device for solar battery packaging material Download PDFInfo
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- CN202649070U CN202649070U CN 201220264143 CN201220264143U CN202649070U CN 202649070 U CN202649070 U CN 202649070U CN 201220264143 CN201220264143 CN 201220264143 CN 201220264143 U CN201220264143 U CN 201220264143U CN 202649070 U CN202649070 U CN 202649070U
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- storage tank
- reaction vessel
- solar cell
- crosslinking
- extract
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Abstract
The utility model relates to a crosslinking degree test device for a packing material in a solar PV component, which belongs to the technical field of detection of solar battery packaging materials, and solves the technical problems by preventing volatilization of poisonous solvents and guaranteeing the security of operators. The crosslinking degree test device for the solar battery packaging material comprises a heater, an extract storage tank, a cleaning solution storage tank and a reaction vessel, and is mainly characterized in that the extract storage tank and the cleaning solution storage tank are respectively connected with the reaction vessel through pipelines, and recovery tanks are arranged in both the extract storage tank and the cleaning solution storage tank. The crosslinking degree test device has a simple structure and is low in cost, both the extractive reaction and drying, used for testing the crosslinking degree of the packaging material, are carried out in the same container, the detection efficiency and the accuracy are improved, operators are protected against the risk of intoxication, and the extract and the cleaning solution are recoverable.
Description
Technical field
The utility model relates to the proving installation of the encapsulating material degree of crosslinking in a kind of solar photovoltaic assembly, belongs to the detection technique field of solar cell package material.
Background technology
EVA is the important encapsulating material of solar photovoltaic assembly, be mainly used to header board, solar cell and backboard and other encapsulating material are bonded together, play electric insulation, moistureproof, the effects such as self-contained battery, and enhancing assembly intensity and security, the EVA degree of crosslinking refers to that the EVA molecule reaches the degree of insoluble gel solidification through cross-linking reaction, its degree of crosslinking directly affects the performance of solar photovoltaic assembly, the EVA degree of crosslinking is not enough can directly to affect glass, cementability between cell piece and the backboard, cause component sealing low, affect intensity and the serviceable life of battery performance and solar photovoltaic assembly.
The method of testing of the EVA degree of crosslinking that present photovoltaic industry generally adopts is to adopt the xylene extraction method, EVA degree of crosslinking test macro such as the production of the auspicious scientific instrument of Shanghai Jing company limited, but dimethylbenzene is toxic solution, larger to harm, the improper use meeting causes poisoning, and at present EVA degree of crosslinking test all is divided into two steps: xylene extraction and drying, be about to the EVA sample and in xylene solution, carry out extractive reaction, uncrosslinked EVA is dissolved in dimethylbenzene, after reaction finishes, after operating personnel need to take out sample, put into again baking oven and carry out drying, disclose such as Chinese patent 201110074173.4 " a kind of EVA sample degree of crosslinking test use drying device " and a kind ofly can directly take off the device of liquid and oven dry to the EVA glue sample after extracting, poisonous xylene solvent is processed by centralized recovery, but the dimethylbenzene that remains on the sample volatilizees in dry run, diminishes operating personnel's health and contaminated environment.
The utility model content
For above-mentioned the deficiencies in the prior art, the utility model purpose is the proving installation of a kind of solar cell package material degree of crosslinking of design, solves how to prevent the toxic solvent volatilization in test process, guarantees the technical matterss such as operator safety.
In order to realize above task, the technical solution adopted in the utility model is: a kind of proving installation of solar cell package material degree of crosslinking, comprise well heater, extract storage tank, cleaning fluid storage tank and reaction vessel, its technical characteristics is to state the extract storage tank to be connected with reaction vessel by pipeline respectively with the cleaning fluid storage tank, and is equipped with recycling can in extract storage tank and the cleaning fluid storage tank.
Condenser and thermometer are housed on the reaction vessel.
Be connected with respectively filtration unit and by-pass valve control on the pipeline of extract storage tank and cleaning fluid storage tank, pump is housed in the filtration unit.Pumping system and pipeline and fluid reservoir link.
Reaction vessel is placed on the well heater.
Reaction vessel is provided with drain hole and a plurality of socket, and pipeline, thermometer and condenser are connected with reaction vessel by corresponding socket respectively.
The reaction vessel treasury is got with drying and is integrated.
The encapsulating material of solar cell is EVA, in the extract storage tank xylene solution is housed, and the cleaning fluid storage tank is in-built ethanol solution.
The detection method of EVA degree of crosslinking is become step detection by traditional two steps detection, the EVA sample after the extraction is directly dried, avoid operating personnel to contact dimethylbenzene, can reclaim remaining xylene solution simultaneously.
The beneficial effect that the utility model produces: simple in structure, cost is low, to all in same container, carry out for extractive reaction and the oven dry of test package material degree of crosslinking, can improve detection efficiency and accuracy, the danger of avoiding simultaneously operating personnel to be poisoned, the cleaning step of reaction vessel carries out continuously automatically, and extract and cleaning fluid are recyclable.
Description of drawings
Fig. 1 is structural representation of the present utility model
Among the figure: 1, encapsulating material, 2, woven wire, 3, well heater, 4, reaction vessel, 401, drain hole, 402, the thermometer socket, 403, pipeline socket, 404, the condenser socket, 5, hook, 6, condenser pipe, 7, thermometer, 8, pipeline, 9, extract storage tank, 10, the cleaning fluid storage tank, 11, filtration unit, in this device pump is housed, when reclaiming, enters again recycling can by filtration unit 11 after with used solution filter.
Embodiment
The present embodiment is used for the degree of crosslinking of test EVA, with dimethylbenzene as extract, absolute ethyl alcohol is as cleaning fluid, proving installation is by extract storage tank 9, cleaning fluid storage tank 10, filtration unit 11, pipeline 8, reaction vessel 4, well heater 3, thermometer 7 and condenser 6 form, reaction vessel 4 is placed on the well heater 3, have drain hole 401 on the reaction vessel 4, thermometer socket 402, pipeline socket 403 and condenser socket 404, xylene solution storage tank 9 is connected with pipeline 8 by valve T1, ethanol solution storage tank 10 is connected with pipeline 8 by valve T3, T1 and T3 are the trickle by-pass valve control, the entrance of pumping system 11 is connected with pipeline 8, outlet is connected with ethanol solution storage tank 10 with xylene solution storage tank 9 respectively with T4 by T2, T2 and T4 are the withdrawal liquid by-pass valve control, enter recycling can behind the used solution filter again.
Concrete detecting step is as follows:
1. first 120 purpose stainless steel cloths 2 are cleaned, after drying, it is cut to a certain size approximately 90mm * 40mm, then it is folded in half into the rectangle of 45mm * 40mm, with dual-side and following sack from top end opening to infolding 7mm ~ 8mm that make, M1 weighs.
2. with the good EVA encapsulating material 1 of curing cross-linked behind laminating technology or the general curing process, be cut into fractionlet for subsequent use, the EVA that gets 0.5g ± 0.05g packs in the bag of the woven wire 2 for preparing, and its weight of weighing M2 seals the M3 that weighs behind the sack.
3. the bag that the woven wire 2 of EVA3 makes will be housed suspend in midair with hook 5, put into the container 4 from drain hole 401.
4. open the valve T1 of xylene solution fluid reservoir 9, xylene solution is passed in the container 4, then valve-off T1 gives container 4 heating by well heater 3, and container 4 is heated to about 140 ℃, so that uncrosslinked EVA1 is dissolved in the xylene solution, solvent boiling reflux 4h ~ 5h treats that solution is cooled to room temperature, opens valve T2, the pumping system that starts in the filtration unit 11 is withdrawn into xylene solution fluid reservoir 9 with xylene solution, valve-off T2.
5. open valve T3, the ethanol of ethanol solution fluid reservoir 10 is passed in the container 4, with remaining xylene soluble in the container 4, reduce its volatilization, valve-off T3, open valve T4, the pumping system 11 that then starts in the filtration unit draws back ethanolic solution to ethanol solution fluid reservoir 10 valve-off T4.
6. be heated to 140 ℃ of oven dry 3h for container 4 by well heater 3, sample is dried.After the sample cooling, take out sample sack, its weight of weighing M4 finishes whole EVA degree of crosslinking test experiments.
7. calculating degree of crosslinking: degree of crosslinking=[1-(M3-M4)/(M2-M1)] * 100%
Wherein: M1: the woven wire weight of three edge sealing openings at one side
M2: the bag heavy (bags of three banding openings at one side) that sample is housed
M3: the bag weight M4 after sample seals is housed: extraction and dried sample bag weight.
The utility model is not limited to above-described embodiment; especially be not limited to test the degree of crosslinking of EVA; or the degree of crosslinking that can test other encapsulating materials; in the ken that those of ordinary skills possess; can also be without departing from the spirit and substance in the present invention; can make various modification and change, these modification and change are also within protection scope of the present invention.
Claims (7)
1. the proving installation of a solar cell package material degree of crosslinking, comprise well heater, extract storage tank, cleaning fluid storage tank and reaction vessel, it is characterized in that described extract storage tank is connected with reaction vessel by pipeline respectively with the cleaning fluid storage tank, and be equipped with recycling can in extract storage tank and the cleaning fluid storage tank.
2. the proving installation of solar cell package material degree of crosslinking according to claim 1 is characterized in that being equipped with on the described reaction vessel condenser and thermometer.
3. the proving installation of solar cell package material degree of crosslinking according to claim 1 is characterized in that being connected with respectively filtration unit and by-pass valve control on the pipeline of described extract storage tank and cleaning fluid storage tank.
4. the proving installation of solar cell package material degree of crosslinking according to claim 3 is characterized in that in the described filtration unit pump being housed.
5. the proving installation of solar cell package material degree of crosslinking according to claim 1 is characterized in that described reaction vessel treasury is got with drying to be integrated.
6. the proving installation of solar cell package material degree of crosslinking according to claim 1 is characterized in that described reaction vessel is provided with drain hole and a plurality of socket, and pipeline, thermometer and condenser are connected with reaction vessel by corresponding socket respectively.
7. the proving installation of solar cell package material degree of crosslinking according to claim 1, the encapsulating material that it is characterized in that solar cell is EVA, in the extract storage tank xylene solution is housed, the cleaning fluid storage tank is in-built ethanol solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264143 CN202649070U (en) | 2012-06-06 | 2012-06-06 | Crosslinking degree test device for solar battery packaging material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264143 CN202649070U (en) | 2012-06-06 | 2012-06-06 | Crosslinking degree test device for solar battery packaging material |
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| Publication Number | Publication Date |
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| CN202649070U true CN202649070U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220264143 Expired - Lifetime CN202649070U (en) | 2012-06-06 | 2012-06-06 | Crosslinking degree test device for solar battery packaging material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075958A (en) * | 2013-03-27 | 2014-10-01 | 普德光伏技术（苏州）有限公司 | Method for testing degree of crosslinking of materials of encapsulation layers of photovoltaic module |
| CN104280309A (en) * | 2013-07-02 | 2015-01-14 | 普德光伏技术（苏州）有限公司 | Measuring method for crosslinking degree of photovoltaic assembly EVA packaging material |
| CN110006774A (en) * | 2018-01-04 | 2019-07-12 | 中电电气(上海)太阳能科技有限公司 | A kind of cross linking degree tester of recyclable dimethylbenzene and its application |
-
2012
- 2012-06-06 CN CN 201220264143 patent/CN202649070U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075958A (en) * | 2013-03-27 | 2014-10-01 | 普德光伏技术（苏州）有限公司 | Method for testing degree of crosslinking of materials of encapsulation layers of photovoltaic module |
| CN104280309A (en) * | 2013-07-02 | 2015-01-14 | 普德光伏技术（苏州）有限公司 | Measuring method for crosslinking degree of photovoltaic assembly EVA packaging material |
| CN110006774A (en) * | 2018-01-04 | 2019-07-12 | 中电电气(上海)太阳能科技有限公司 | A kind of cross linking degree tester of recyclable dimethylbenzene and its application |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |