CN203923464U - In a kind of polysilicon solar battery slice chain type texturing device, use liquor circulation pipeline - Google Patents
In a kind of polysilicon solar battery slice chain type texturing device, use liquor circulation pipeline Download PDFInfo
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- CN203923464U CN203923464U CN201420207179.3U CN201420207179U CN203923464U CN 203923464 U CN203923464 U CN 203923464U CN 201420207179 U CN201420207179 U CN 201420207179U CN 203923464 U CN203923464 U CN 203923464U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses in a kind of polysilicon solar battery slice chain type texturing device and use liquor circulation pipeline, comprise circulating medical solution divided flow box and a plurality of input duct of the bottom that is distributed in reactive tank; Each input duct has two portions: the rear segment pipe II of front segment pipe I and end sealing; Front segment pipe I is fixed and is communicated with circulating medical solution divided flow box, and rear segment pipe II is fixed and is communicated with front segment pipe I; Front segment pipe I and rear segment pipe II are fixed on the bottom surface of reactive tank, and the two upper end has respectively a plurality of spout holes; The spout hole quantity having in front segment pipe I is less than the spout hole quantity having in rear segment pipe II.Use chain type texturing device of the present utility model that solution is upwards flowed by bottom, vertical direction convection current is abundant, and nitrous acid can be fully dissolved in the interior solution of groove, and the hold facility of solution activity is improved; And solution upper strata and lower floor's temperature difference are reduced, reduced making herbs into wool depth of corrosion deviation, improved the efficiency of cell piece.
Description
Technical field
The utility model relates in a kind of polysilicon solar battery slice chain type texturing device uses liquor circulation pipeline.
Background technology
In the manufacturing process of existing polysilicon solar battery slice, leather producing process is a crucial step, the quality of making herbs into wool is directly connected to the performance of cell piece, wherein to the solubility of nitrous acid in mixed acid solution (concentration of medicine company), temperature homogeneity require the most key.Tradition polysilicon solar battery slice etching process using liquid carries out making herbs into wool in the mode of the overflow of reactive tank both sides, liquid submergence polycrystalline silicon battery plate.This mode, polycrystalline silicon battery plate is positioned at the reactive tank top of equipment, and the sensor of measuring mixed acid solution temperature is positioned at reaction tank bottom, and feed liquor pipeline is positioned at one end of reaction tank bottom; Its feed liquor mode adopts feed liquor pipeline slowly to advance to the other end in one end of reaction tank bottom, this feed liquor mode causes the solution entering only to flow in the horizontal direction, there is no in the vertical direction effective convection current, the solution temperature at silicon chip place solution temperature and temperature sensor place be there are differences, the chemical reaction of making herbs into wool is continuity thermopositive reaction, and during production, solution surface temperature also changes thereupon.So under existing installation structural condition, in technology groove with the temperature controlled accuracy of mixed acid solution and the less stable at silicon chip generation chemical reaction place.Because solution in technology groove is in the vertical direction without effectively convection current, cause the nitrous acid solubility of solution surface high simultaneously, the nitrous acid solubility of solution bottom is low.Due to equipment row wind action, it is very fast that the nitrous acid of texturing slot internal upper part solution decomposes evaporation rate, the solution nitrous acid content that overflow is got back in the reservoir of equipment bottom is low, and in mixed acid solution, the solubility of nitrous acid directly has influence on the speed that silicon chip reacts with mixed acid solution.
utility model content
The purpose of this utility model solves the above-mentioned problems in the prior art exactly, provide in a kind of polysilicon solar battery slice chain type texturing device with liquor circulation pipeline, use the chain type texturing device of this liquor circulation pipeline that solution is upwards flowed by bottom, vertical direction convection current is abundant, nitrous acid can be fully dissolved in the interior solution of groove, the hold facility of solution activity is improved; And solution upper strata and lower floor's temperature difference are reduced, reduced making herbs into wool depth of corrosion deviation, improved the efficiency of cell piece.
For achieving the above object, technical solution of the present utility model is: in a kind of polysilicon solar battery slice chain type texturing device, with liquor circulation pipeline, comprise circulating medical solution divided flow box and a plurality of input duct of the bottom that is distributed in reactive tank; Each input duct has two portions: the rear segment pipe II of front segment pipe I and end sealing; Front segment pipe I is fixed and is communicated with circulating medical solution divided flow box, and rear segment pipe II is fixed and is communicated with front segment pipe I; Front segment pipe I and rear segment pipe II are fixed on the bottom surface of reactive tank, and the two upper end has respectively a plurality of spout holes; The spout hole quantity having in front segment pipe I is less than the spout hole quantity having in rear segment pipe II.
Front segment pipe I described above is shorter than rear segment pipe II, and front segment pipe I and rear segment pipe II spacing distance have many group spout holes; In front segment pipe I, the distance at interval is longer than the distance at interval in back segment pipeline II; And in front segment pipe I, the quantity of the spout hole of every group is less than in rear segment pipe II the quantity of the spout hole of every group.
In front segment pipe I described above, the quantity of the spout hole of every group is set to 2, and the angle between 2 spout holes is 60 °-120 °; In rear segment pipe II, the quantity of the spout hole of every group is set to 3, and the angle between adjacent spout hole is 30 °-60 °.The diameter of spout hole is 2 millimeters
Front segment pipe I described above and rear segment pipe II are all polyvinylidene difluoride (PVDF) pipe.
Because making solution, liquor circulation pipeline of the present utility model upwards flowed by bottom, vertical direction convection current is abundant, liquid in reactive tank temperature head is in the vertical direction reduced, thereby accuracy and stability that fluid temperature is controlled have been promoted, make the nitrous acid solubility in mixed acid solution keep stable, the making herbs into wool depth of corrosion deviation of cell piece is reduced, improved the efficiency of cell piece.Make nitrous acid can fully be dissolved in the interior solution of groove simultaneously, along with solution flows in the reservoir of equipment bottom, reservoir is sealed structure, make nitrous acid more and longer time remain in mixed acid solution, thereby the hold facility of solution activity is improved, accelerate the speed that silicon chip reacts with mixed acid solution, reduced the making herbs into wool time, improved making herbs into wool efficiency.
Table 1 and table 2 contrast for the utility model is used front and back making herbs into wool depth of corrosion homogeneity, and the deviation of making herbs into wool depth of corrosion has as can be seen from Table 1 and Table 2 been reduced to 1.28% by 5.55%.After the utility model application, the homogeneity of making herbs into wool depth of corrosion is greatly improved as can be seen here.
Depth of corrosion situation before the application of table 1 the utility model
Table 2 the utility model application post-etching degree of depth situation
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 opens the structural representation of spout hole position in front segment pipe I in the utility model;
Fig. 3 opens the structural representation of spout hole position in the pipeline II of the utility model posterior segment.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the present embodiment comprises circulating medical solution divided flow box 1 and a plurality of input duct of the bottom that is distributed in reactive tank.Each input duct has two portions: front segment pipe I 3 and an end are by the rear segment pipe II 6 of sealing bolt 8 sealings.Front segment pipe I 3 and rear segment pipe II 6 are all polyvinylidene difluoride (PVDF) pipe.Front segment pipe I 3 is fixed and is communicated with by pipeline connection valve 2 with circulating medical solution divided flow box 1, and rear segment pipe II 6 is fixed and is communicated with by pipeline connection valve 2 with front segment pipe I 3.Front segment pipe I 3 and rear segment pipe II 6 are fixed on by pipeline support 5 on the bottom surface of reactive tank, and front segment pipe I 3 is shorter than rear segment pipe II 6.Front segment pipe I 3 spacing distances have four groups of spout holes 4, and the quantity of the spout hole 4 of every group is set to 2, and the angle between 2 spout holes 41 and 42 is any angle between 60 ° to 120 °.Rear segment pipe II 6 spacing distances have three groups of spout holes 7, and the quantity of the spout hole 7 of every group is set to 3, and the angle between 3 spout holes 71,72 and 73 is any angle between 30 ° to 60 °.
Certainly; the utility model also has other various embodiments; without prejudice to the utility model spirit and essence in the situation that; those of ordinary skill in the art can make corresponding change and distortion according to the utility model; as arranging of the setting of group number of spout hole in front segment pipe I and rear segment pipe II and the number of every group of spout hole etc., but these corresponding change and distortion all should belong to the protection domain of the utility model claim.
Claims (4)
1. in polysilicon solar battery slice chain type texturing device, use a liquor circulation pipeline, it is characterized in that: the circulating medical solution divided flow box and a plurality of input duct that comprise the bottom that is distributed in reactive tank; Each input duct has two portions: the rear segment pipe II of front segment pipe I and end sealing; Front segment pipe I is fixed and is communicated with circulating medical solution divided flow box, and rear segment pipe II is fixed and is communicated with front segment pipe I; Front segment pipe I and rear segment pipe II are fixed on the bottom surface of reactive tank, and the two upper end has respectively a plurality of spout holes; The spout hole quantity having in front segment pipe I is less than the spout hole quantity having in rear segment pipe II.
2. in polysilicon solar battery slice chain type texturing device according to claim 1, use liquor circulation pipeline, it is characterized in that: described front segment pipe I is shorter than rear segment pipe II, front segment pipe I and rear segment pipe II spacing distance have many group spout holes; In front segment pipe I, the distance at interval is longer than the distance at interval in back segment pipeline II; And in front segment pipe I, the quantity of the spout hole of every group is less than in rear segment pipe II the quantity of the spout hole of every group.
3. in polysilicon solar battery slice chain type texturing device according to claim 2, use liquor circulation pipeline, it is characterized in that: in described front segment pipe I, the quantity of the spout hole of every group is set to 2, the angle between 2 spout holes is 60 °-120 °; In rear segment pipe II, the quantity of the spout hole of every group is set to 3, and the angle between adjacent spout hole is 30 °-60 °.
4. according to using liquor circulation pipeline in the polysilicon solar battery slice chain type texturing device described in claim 1 or 2 or 3, it is characterized in that: described front segment pipe I and rear segment pipe II are all polyvinylidene difluoride (PVDF) pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207179.3U CN203923464U (en) | 2014-04-27 | 2014-04-27 | In a kind of polysilicon solar battery slice chain type texturing device, use liquor circulation pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420207179.3U CN203923464U (en) | 2014-04-27 | 2014-04-27 | In a kind of polysilicon solar battery slice chain type texturing device, use liquor circulation pipeline |
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| Publication Number | Publication Date |
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| CN203923464U true CN203923464U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420207179.3U Expired - Fee Related CN203923464U (en) | 2014-04-27 | 2014-04-27 | In a kind of polysilicon solar battery slice chain type texturing device, use liquor circulation pipeline |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465878A (en) * | 2014-12-11 | 2015-03-25 | 东方日升新能源股份有限公司 | System for adjusting thickness reduction uniformity in silicon slice texturing groove |
| CN105470170A (en) * | 2015-11-23 | 2016-04-06 | 百力达太阳能股份有限公司 | System of making uniform texturing-groove chemical groove liquid temperature |
-
2014
- 2014-04-27 CN CN201420207179.3U patent/CN203923464U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465878A (en) * | 2014-12-11 | 2015-03-25 | 东方日升新能源股份有限公司 | System for adjusting thickness reduction uniformity in silicon slice texturing groove |
| CN105470170A (en) * | 2015-11-23 | 2016-04-06 | 百力达太阳能股份有限公司 | System of making uniform texturing-groove chemical groove liquid temperature |
| CN105470170B (en) * | 2015-11-23 | 2018-05-25 | 百力达太阳能股份有限公司 | Make the uniform system of texturing slot chemistry tank liquor temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211202 Address after: 072550 no.4685, Changcheng North Street, Xushui District, Baoding City, Hebei Province Patentee after: Hebei Zhaoneng New Energy Technology Co.,Ltd. Address before: Xushui County, Hebei Province, Baoding Juli 072550 City Road Patentee before: JULI NEW ENERGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |