CN217691194U - Etching drainage system of crystalline silicon solar cell - Google Patents
Etching drainage system of crystalline silicon solar cell Download PDFInfo
- Publication number
- CN217691194U CN217691194U CN202220817634.6U CN202220817634U CN217691194U CN 217691194 U CN217691194 U CN 217691194U CN 202220817634 U CN202220817634 U CN 202220817634U CN 217691194 U CN217691194 U CN 217691194U
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- module
- overflow
- liquid medicine
- liquid
- reaction
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- 238000005530 etching Methods 0.000 title claims abstract description 26
- 229910021419 crystalline silicon Inorganic materials 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 89
- 239000003814 drug Substances 0.000 claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 230000001502 supplementing effect Effects 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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 an etching drainage system of a crystalline silicon solar cell, which comprises a reaction module, an overflow module, a circulation module and a drainage module; the reaction module is used for etching the crystalline silicon solar cell; the overflow module is connected with the reaction module and is used for containing the liquid medicine overflowed by the reaction module; the circulating module is respectively connected with the reaction module and the overflow module, and is used for recovering the liquid medicine of the overflow module and providing the liquid medicine for the reaction module; the liquid discharge module is connected with the overflow module and is used for discharging the redundant liquid medicine in the overflow module. Adopt the utility model discloses can effectively reduce the consumption of liquid medicine, reduction in production cost.
Description
Technical Field
The utility model relates to a silicon solar cell manufacture equipment technical field especially relates to a crystalline silicon solar cell's sculpture flowing back system.
Background
In the process of manufacturing the solar cell, an etching process is an important link of the product, and the existing silicon solar cell etching process comprises a reaction tank and a storage tank, wherein liquid medicine circulation is realized between the two tank bodies through a pipeline so as to ensure the smoothness of etching. However, the liquid discharge pipeline of the current etching process is arranged at the storage tank, and waste of high-concentration liquid medicine is caused when redundant liquid medicine is discharged every time, so that the etching process needs to be optimized urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a crystalline silicon solar cell's sculpture flowing back system is provided, effectively reduces the consumption of liquid medicine, reduction in production cost.
In order to solve the technical problem, the utility model provides an etching drainage system of a crystalline silicon solar cell, which comprises a reaction module, an overflow module, a circulation module and a drainage module;
the reaction module is used for etching the crystalline silicon solar cell;
the overflow module is connected with the reaction module and is used for containing the liquid medicine overflowed by the reaction module;
the circulating module is respectively connected with the reaction module and the overflow module, and is used for recovering the liquid medicine of the overflow module and providing the liquid medicine for the reaction module;
the liquid discharge module is connected with the overflow module and used for discharging redundant liquid medicine of the overflow module.
As an improvement of the scheme, the liquid replenishing device further comprises a liquid replenishing module, wherein the liquid replenishing module is connected with the circulating module and used for replenishing liquid medicine to the circulating module.
As an improvement of the scheme, the circulating module comprises a storage tank and a circulating pump, and the circulating pump pumps the liquid medicine in the storage tank into the reaction module.
As an improvement of the scheme, the storage tank is provided with a liquid level meter which is used for monitoring the liquid level height of the storage tank.
As an improvement of the scheme, the overflow module is arranged on one side of the reaction module.
As an improvement of the scheme, the circulating module is arranged below the reaction module and the overflow module.
Implement the embodiment of the utility model provides a, following beneficial effect has:
the etching liquid drainage system of the crystal silicon solar cell of the utility model arranges the liquid drainage module at the overflow module, thereby effectively reducing the consumption of the liquid medicine and reducing the production cost; moreover, the liquid level meter is arranged in the storage tank of the circulating module, so that the liquid level height of the liquid medicine in the storage tank is effectively and automatically monitored, and the excess liquid medicine in the overflow module is reminded to be discharged in time, so that the abnormal system caused by the overfilling of the storage tank in the circulating process is prevented; in addition, through setting up the fluid infusion module, can in time supply the required liquid medicine of reaction module, improve etching efficiency.
Drawings
Fig. 1 is a schematic flow diagram of an etching liquid discharge system of a crystalline silicon solar cell according to the present invention;
fig. 2 is a schematic structural diagram of an etching liquid discharge system of a crystalline silicon solar cell according to the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside equidirectional wording that appears or will appear in the text only uses the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.
As shown in fig. 1 and fig. 2, the present embodiment provides an etching drain system for a crystalline silicon solar cell, which includes a reaction module 1, an overflow module 2, a circulation module 3, a drain module 4, and a liquid replenishment module 5;
the reaction module 1 is used for etching the crystalline silicon solar cell;
the overflow module 2 is connected with the reaction module 1 and is used for containing the liquid medicine overflowed from the reaction module 1;
the circulating module 3 is respectively connected with the reaction module 1 and the overflow module 2, and is used for recovering the liquid medicine of the overflow module 2 and providing the liquid medicine for the reaction module 1;
the liquid discharge module 4 is connected with the overflow module 2 and is used for discharging redundant liquid medicine in the overflow module 2;
the liquid supplementing module 5 is connected with the circulating module 3 and is used for supplementing liquid medicine to the circulating module 3 so as to supplement the concentration of the liquid medicine consumed in the reaction module 1.
Specifically, the overflow module 2 is arranged on one side of the reaction module 1, so that the liquid medicine overflowing from the reaction module 1 can be effectively recovered, and a foundation is provided for subsequent liquid medicine circulation.
Specifically, the circulation module 3 includes a storage tank 31 and a circulation pump 32, the circulation pump 32 pumps the liquid medicine in the storage tank 31 into the reaction module 1, and the liquid medicine overflowed from the reaction module 1 in the overflow module 2 flows into the storage tank 31, so that the liquid medicine circulation is realized, and the effective use efficiency of the liquid medicine is improved. Furthermore, a liquid level meter 33 is arranged in the storage tank 31, the liquid level meter 33 is used for monitoring the liquid level of the storage tank 31, when the liquid level of the storage tank 31 reaches the set value of the liquid level meter 33, the system can start the liquid discharge module 4 and discharge redundant liquid medicine in the overflow module 2, so that the storage tank 31 is prevented from being overfilled due to liquid medicine circulation, and the system is effectively ensured to be orderly carried out.
It should be noted that, the liquid discharging module 4 of the prior art is disposed at the storage tank 31, and because the storage tank 31 is replenished with new liquid, when the liquid level of the storage tank 31 is too high and liquid is required to be discharged, the concentration of the discharged liquid medicine is high, resulting in a large amount of liquid medicine loss. And the utility model discloses a 2 departments of overflow module are located to flowing back module 4, and its concentration reduction after the liquid medicine in the overflow module 2 takes place chemical reaction because of in reaction module 1 with the silicon chip, so flowing back module 4 discharge overflow module 2's liquid medicine concentration can be low for prior art exhaust liquid medicine concentration, effectively reduces the volume of consumeing of liquid medicine like this, reduction in production cost improves production efficiency.
The liquid concentrations in each module were as follows: the liquid supplementing module 5 is larger than the circulating module 3, the reaction module 1 is larger than the overflow module 2, and the liquid discharging module 4 is larger than the liquid supplementing module.
In summary, the etching drainage system of the crystalline silicon solar cell of the utility model arranges the drainage module 4 at the overflow module 2, thereby effectively reducing the consumption of the liquid medicine and reducing the production cost; moreover, the liquid level meter 33 is arranged in the storage tank 31 of the circulating module 3, so that the liquid level height of the liquid medicine in the storage tank 31 is effectively and automatically monitored, and the excess liquid medicine in the overflow module 2 is reminded to be discharged in time, so that the abnormal system caused by the overfilling of the storage tank 31 in the circulating process is prevented; in addition, by arranging the liquid supplementing module 5, liquid medicine required by the reaction module can be supplemented in time, and the etching efficiency is improved.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (6)
1. An etching liquid drainage system of a crystalline silicon solar cell is characterized by comprising a reaction module, an overflow module, a circulation module and a liquid drainage module;
the reaction module is used for etching the crystalline silicon solar cell;
the overflow module is connected with the reaction module and is used for containing the liquid medicine overflowed by the reaction module;
the circulating module is respectively connected with the reaction module and the overflow module, and is used for recovering the liquid medicine of the overflow module and providing the liquid medicine for the reaction module;
the liquid discharge module is connected with the overflow module and used for discharging redundant liquid medicine of the overflow module.
2. The etching and draining system of the crystalline silicon solar cell of claim 1, further comprising a liquid supplementing module connected with the circulating module for supplementing liquid medicine to the circulating module.
3. The etching and draining system of crystalline silicon solar cells of claim 1, wherein the circulation module comprises a storage tank and a circulation pump, and the circulation pump pumps the liquid medicine in the storage tank into the reaction module.
4. The etching and draining system for crystalline silicon solar cells of claim 3, wherein the storage tank is provided with a liquid level meter for monitoring the liquid level height of the storage tank.
5. The etching and draining system of a crystalline silicon solar cell as claimed in claim 1, wherein the overflow module is disposed at one side of the reaction module.
6. The etching drainage system of a crystalline silicon solar cell as claimed in claim 1, wherein the circulation module is arranged below the reaction module and the overflow module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220817634.6U CN217691194U (en) | 2022-04-01 | 2022-04-01 | Etching drainage system of crystalline silicon solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220817634.6U CN217691194U (en) | 2022-04-01 | 2022-04-01 | Etching drainage system of crystalline silicon solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217691194U true CN217691194U (en) | 2022-10-28 |
Family
ID=83733128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220817634.6U Active CN217691194U (en) | 2022-04-01 | 2022-04-01 | Etching drainage system of crystalline silicon solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217691194U (en) |
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2022
- 2022-04-01 CN CN202220817634.6U patent/CN217691194U/en active Active
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