CN220867531U - Hydrogen test device is filled in PEM electrolysis trough system - Google Patents
Hydrogen test device is filled in PEM electrolysis trough system Download PDFInfo
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- CN220867531U CN220867531U CN202322624856.3U CN202322624856U CN220867531U CN 220867531 U CN220867531 U CN 220867531U CN 202322624856 U CN202322624856 U CN 202322624856U CN 220867531 U CN220867531 U CN 220867531U
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- pem
- water
- outlet
- pem electrolyzer
- test device
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000001257 hydrogen Substances 0.000 title claims abstract description 69
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 69
- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000004519 manufacturing process Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000011049 filling Methods 0.000 claims abstract description 13
- 238000000746 purification Methods 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001301 oxygen Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 10
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 12
- 239000007791 liquid phase Substances 0.000 claims description 8
- 239000012071 phase Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model provides a hydrogen making and charging testing device for a PEM (PEM) electrolytic tank, and belongs to the technical field of water electrolysis hydrogen production. The PEM electrolyzer hydrogen production and filling testing device comprises a PEM electrolyzer; a water tank, an inlet of which is connected with an anode outlet of the PEM electrolytic tank, and a oxyhydrogen analyzer is arranged in a connecting pipeline; the inlet of the deionized purification column is connected with the outlet of the water tank, and the outlet of the deionized purification column is connected with the anode inlet of the PEM electrolytic tank; the inlet of the gas-liquid separator is connected with the cathode outlet of the PEM electrolytic tank, and the gas phase outlet is connected with the gas dryer; and the back pressure valve is connected with the outlet of the gas dryer. The utility model has simple structure and convenient construction, can monitor the hydrogen content in the oxygen generated by the electrolysis of the PEM electrolytic cell in real time, and improves the safe operation capacity of the PEM electrolytic cell hydrogen making and charging testing device; and the operation state of the PEM hydrogen making and filling integrated machine can be simulated, and the test of the performance related to the PEM electrolytic tank in the hydrogen making and filling state is realized.
Description
Technical Field
The utility model relates to the technical field of hydrogen production by water electrolysis, in particular to a hydrogen production and charging testing device for a PEM (PEM) electrolytic tank.
Background
The technology of hydrogen production by water electrolysis is mainly divided into three modes of alkaline water electrolysis, proton Exchange Membrane (PEM) water electrolysis and high-temperature Solid Oxide (SOEC) water electrolysis, wherein commercialization of the technology mainly comprises alkaline water electrolysis and PEM water electrolysis. Unlike alkaline water electrolysis hydrogen production technology, the PEM water electrolysis hydrogen production technology uses a proton exchange membrane as a solid electrolyte to replace a diaphragm and an alkaline liquid electrolyte used by an alkaline electrolytic tank, and pure water is used as a raw material for water electrolysis hydrogen production, so that potential alkali liquor pollution and corrosion problems are avoided; and only oxygen is discharged as a byproduct without any carbon emissions, is considered as the most promising technology for efficiently producing high purity hydrogen using renewable energy.
The PEM hydrogen making and filling integrated machine is a machine which can directly fill hydrogen prepared by water electrolysis of a PEM electrolytic tank into a solid hydrogen storage bottle for use after filtering and drying, and the demand of the market is gradually increasing at present, so that the development activities of the PEM electrolytic tank are also increasing. However, the conventional PEM electrolyzer test system disclosed in the prior art has the defects in testing the PEM hydrogen-making and charging integrated machine, and usually the electrolyzer test device is not provided with a back pressure monitoring device behind a hydrogen side gas-liquid separator, so that the back pressure generated by the PEM hydrogen-making and charging integrated machine on the hydrogen side of the PEM in the charging process can not be simulated, and effective charging process test data can not be obtained; and the oxyhydrogen analyzer is not arranged, so that an alarm can not be given when the hydrogen concentration of the oxygen side of the PEM electrolysis is ultrahigh or the oxygen concentration of the hydrogen side is ultrahigh, and the operation safety and stability of the device are ensured.
Therefore, in order for enterprises to better develop the PEM hydrogen making and charging integrated machine, a related test bench with simple structure and lower cost needs to be built to simulate the running state of the PEM hydrogen making and charging integrated machine so as to acquire the safety performance data required by the PEM hydrogen making and charging integrated machine during running.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides a hydrogen making and filling testing device for a PEM (PEM) electrolytic tank, which can simulate the running state of a PEM hydrogen making and filling integrated machine so as to obtain the safety performance data required by the PEM hydrogen making and filling integrated machine during running.
To achieve the above and other objects, the present utility model is achieved by comprising the following technical solutions: the utility model provides a hydrogen making and charging testing device of a PEM (proton exchange membrane) electrolytic cell, which is characterized by comprising the PEM electrolytic cell; a water tank, an inlet of which is connected with an anode outlet of the PEM electrolytic tank, and a oxyhydrogen analyzer is arranged in a connecting pipeline; the inlet of the deionized purification column is connected with the outlet of the water tank, and the outlet of the deionized purification column is connected with the anode inlet of the PEM electrolytic tank; the inlet of the gas-liquid separator is connected with the cathode outlet of the PEM electrolytic tank, and the gas phase outlet is connected with the gas dryer; and the back pressure valve is connected with the outlet of the gas dryer.
In one embodiment, the PEM electrolyzer hydrogen production and charging test device further comprises an electronic control system for controlling the operation of all the equipment in the PEM electrolyzer hydrogen production and charging test device and acquiring relevant monitoring data.
Further, when the hydrogen content in the oxygen at the anode outlet of the PEM electrolytic cell monitored by the oxyhydrogen analyzer is more than 2vol%, feedback data is sent to the electric control system to alarm and stop.
In an embodiment, a first water pump for pumping water from the water tank and a flow regulating valve for regulating water flow are sequentially arranged in a connecting pipeline of the water tank and the deionized purification column.
In an embodiment, a water return pipeline is arranged between the liquid phase outlet of the gas-liquid separator and the inlet of the water tank, and the water return pipeline comprises a fixed-frequency regulating valve connected with the liquid phase outlet of the gas-liquid separator and a second water pump connected with the inlet of the water tank.
In one embodiment, the PEM electrolyzer is connected to a dc power supply for providing dc power to the PEM electrolyzer and a voltmeter for monitoring the electrolysis voltage of the PEM electrolyzer.
Further, during safe operation, the monolithic average voltage of the PEM electrolyzer monitored by the voltmeter ranges from 1.4V to 2.2V.
In one embodiment, the water tank is provided with a temperature sensor and a water quality detector, wherein the temperature sensor is used for monitoring the water temperature in the water tank; the water quality detector is used for monitoring water quality parameters in the water tank.
Further, in safe operation, the water temperature monitored by the temperature sensor ranges from 0 ℃ to 80 ℃.
Further, in safe operation, the conductivity of the pure water monitored by the water quality detector is less than or equal to 1.0 mu S/cm.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the oxyhydrogen analyzer is arranged in the connecting pipeline of the PEM electrolytic tank and the water tank, so that the hydrogen content in oxygen generated by electrolysis at the anode side of the PEM electrolytic tank can be monitored in real time, and once the hydrogen content exceeds the standard, the oxyhydrogen analyzer can feed back data to alarm and stop, so that the safety operation capability of the hydrogen making and filling testing device of the PEM electrolytic tank can be improved; meanwhile, by arranging a gas-liquid separator, a gas dryer and a back pressure valve at the cathode outlet of the PEM electrolytic cell, the performance of the PEM electrolytic cell in a hydrogen making and charging state can be tested;
2. according to the utility model, the water return pipeline is arranged at the liquid phase outlet of the gas-liquid separator, so that the cooling water in the gas-liquid separator can be recycled;
3. The PEM electrolytic cell hydrogen making and charging testing device provided by the utility model has the advantages of simple structure and convenience in construction, and can greatly reduce the research and development cost of enterprises.
Drawings
FIG. 1 is a schematic diagram of a PEM electrolyzer hydrogen production and filling test device according to the present utility model.
In the figure: 1. a PEM electrolyzer; 2. an oxyhydrogen analyzer; 3. a water tank; 4. a first water pump; 5. a flow regulating valve; 6. a deionized purification column; 7. a gas-liquid separator; 8. a gas dryer; 9. a back pressure valve; 10. a fixed frequency regulating valve; 11. a second water pump; 12. a direct current power supply; 13. a voltmeter; 14. temperature sensor, 15, water quality detector.
Detailed Description
Please refer to fig. 1. Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof.
In the present utility model, the serial numbers of the components, such as "first", "second", etc., are used only to distinguish the described objects, and do not have any sequential or technical meaning. The term "coupled", where the context clearly indicates otherwise, includes both direct and indirect coupling. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements is included, and may include other elements not expressly listed.
As shown in FIG. 1, the utility model provides a hydrogen making and charging testing device of a PEM (PEM) electrolytic cell, which comprises a PEM electrolytic cell 1, a water tank 3, a deionized purification column 6, a gas-liquid separator 7, a gas dryer 8 and a back pressure valve 9.
The anode outlet of the PEM electrolytic tank 1 is connected with the inlet of the water tank 3, the outlet of the water tank 3 is connected with the inlet of the deionized purification column 6, and a first water pump 4 for pumping water from the water tank 3 and a flow regulating valve 5 for regulating water flow are sequentially arranged in a connecting pipeline; the outlet of the deionization purification column 6 is connected with the anode inlet of the PEM electrolyzer 1; the cathode outlet of the PEM electrolytic tank 1 is connected with the inlet of the gas-liquid separator 7 through a hydrogen liquid pipeline; a water return pipeline is arranged between the liquid phase outlet of the gas-liquid separator 7 and the liquid phase inlet of the water tank 3, so that the water circulation of the whole PEM electrolytic tank hydrogen making and charging testing device is formed. The gas phase outlet of the gas-liquid separator 7 is connected with the gas dryer 8; the outlet of the gas dryer 8 is connected to the back pressure valve 9 to form the hydrogen test section of the whole PEM electrolyzer hydrogen test device.
Specifically, a fixed-frequency adjusting valve 10 and a second water pump 11 are arranged in the water return pipeline, an inlet of the fixed-frequency adjusting valve 10 is connected with a liquid phase outlet of the gas-liquid separator 7, an outlet of the fixed-frequency adjusting valve 10 is connected with the second water pump 11, and the second water pump 11 is used for pumping return water from the gas-liquid separator 7 to the water tank 3.
In order to improve the safe operation capability of the PEM electrolyzer hydrogen making and filling test device, an oxyhydrogen analyzer 2 can be arranged in a connecting pipeline of the PEM electrolyzer 1 and the water tank 3, the oxyhydrogen analyzer 2 is used for detecting the hydrogen content in oxygen generated by electrolysis at the anode side of the PEM electrolyzer 1, and once the hydrogen content exceeds the standard, the oxyhydrogen analyzer 2 can feed back data to alarm and stop, so that the accuracy and stability of the production process can be ensured. Specifically, to ensure safe operation of the PEM electrolyzer hydrogen production and fill test device, the hydrogen content of the oxygen gas monitored by the oxyhydrogen analyzer 2 should be less than or equal to 2vol%.
Further, the PEM electrolyzer 1 is also connected to a dc power supply 12 for supplying dc power to the PEM electrolyzer 1 and a voltmeter 13 for monitoring the electrolysis voltage of the PEM electrolyzer 1. In particular, to ensure safe operation of the PEM electrolyzer hydrogen production and charging test device, the monolithic average voltage of the PEM electrolyzer 1 monitored by the voltmeter 13 may range from 1.4V to 2.2V.
Further, the water tank 3 is provided with a temperature sensor 14 and a water quality detector 15, wherein the temperature sensor 14 is used for monitoring the water temperature in the water tank 3; the water quality detector 15 is used for monitoring water quality parameters, such as pure water conductivity, etc., in the water tank 3. Specifically, in order to ensure the safe operation of the PEM electrolyzer hydrogen production and charging test device, the water temperature in the water tank 3 should be controlled between 0 ℃ and 80 ℃; the conductivity of pure water should be less than or equal to 1.0. Mu.S/cm.
Further, the PEM electrolyzer hydrogen making and charging testing device also comprises an electric control system, wherein the electric control system is electrically connected with the devices and used for controlling the operation of the devices and acquiring relevant monitoring data. The electronic control system may be an electronic control system common in the art, such as a PLC system, etc., and is not described herein again for being a mature market product.
In summary, when the utility model is used, all the devices are controlled to act by the electric control system, and the specific working process is as follows:
Firstly, according to the capacity budget of the PEM electrolytic cell 1 to be tested, the water inflow of a sample machine of the electrolytic cell is estimated, the conductivity of pure water in the water tank 3 is monitored by a water quality detector 15, and the water temperature in the water tank 3 is monitored by a temperature sensor 14;
Secondly, when the water temperature in the water tank 3 is 0-80 ℃ and the conductivity of pure water is less than or equal to 1.0 mu S/cm, the electric control system judges that the water quality is qualified, a flow regulating valve 5 is preset, a first water pump 4 is started, the first water pump 4 pumps pure water out of the water tank 3 and conveys the pure water into a deionized pure water column 6, the pure water purified by the deionized pure water column 6 enters the PEM electrolytic tank 1 from an anode inlet of the PEM electrolytic tank 1, and flows out from an anode outlet of the PEM electrolytic tank 1 and enters the water tank 3 again to form circulation;
Thirdly, after about 3 minutes, the electric control system starts the direct current power supply 12, the current of the direct current power supply 12 is regulated according to the required hydrogen output, pure water entering the PEM electrolytic tank 1 starts to electrolyze at the moment, oxygen generated by electrolysis enters the water tank 3 from the anode outlet of the PEM electrolytic tank 1, the hydrogen content in the oxygen is detected by the oxyhydrogen analyzer 2 during the process, and once the hydrogen content exceeds the standard, the electric control system shuts down the direct current power supply 12, so that the accuracy and the stability of the production process are ensured; a mixture of hydrogen and water produced by electrolysis enters the inlet of the gas-liquid separator 7 from the cathode outlet of the PEM electrolyzer 1; the hydrogen passing through the gas-liquid separator 7 enters the gas dryer 8 from the gas phase outlet of the gas-liquid separator 7, the hydrogen charging state is simulated by adjusting the pressure of the back pressure valve 9, and the voltage value of the PEM electrolytic tank 1 in the corresponding state is read through the voltmeter 13; meanwhile, the electric control system regularly extracts liquid water separated by the gas-liquid separator 7 into the water tank 3 through the second water pump 11 by setting the fixed-frequency regulating valve 10, so that the device functions are guaranteed, the water is recycled, and time and labor are saved.
Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value. The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A PEM electrolyzer hydrogen-making and charging testing device is characterized by comprising
A PEM electrolyzer;
A water tank, an inlet of which is connected with an anode outlet of the PEM electrolytic tank, and a oxyhydrogen analyzer is arranged in a connecting pipeline;
The inlet of the deionized purification column is connected with the outlet of the water tank, and the outlet of the deionized purification column is connected with the anode inlet of the PEM electrolytic tank;
The inlet of the gas-liquid separator is connected with the cathode outlet of the PEM electrolytic tank, and the gas phase outlet is connected with the gas dryer;
And the back pressure valve is connected with the outlet of the gas dryer.
2. The PEM electrolyzer hydrogen production and filling test device of claim 1, further comprising an electronic control system for controlling the operation of all equipment in the PEM electrolyzer hydrogen production and filling test device and acquiring relevant monitoring data.
3. The PEM electrolyzer hydrogen production and filling test device of claim 2 wherein when the hydrogen content in the oxygen at the anode outlet of the PEM electrolyzer, as monitored by the oxyhydrogen analyzer, is greater than a safety threshold, feedback data is sent to the electronic control system for an alarm shutdown.
4. The PEM electrolyzer hydrogen production test device of claim 1 wherein a first water pump for pumping water from the water tank and a flow regulating valve for regulating water flow are sequentially disposed in the connecting line of the water tank and the deionized purification column.
5. The PEM electrolyzer hydrogen production test device of claim 1 wherein a water return line is disposed between the liquid phase outlet of the gas-liquid separator and the inlet of the water tank, the water return line including a constant frequency regulating valve connected to the liquid phase outlet of the gas-liquid separator and a second water pump connected to the inlet of the water tank.
6. The PEM electrolyzer hydrogen production test device of claim 1 wherein said PEM electrolyzer is connected to a dc power supply for providing dc power to said PEM electrolyzer and a voltmeter for monitoring the electrolysis voltage of said PEM electrolyzer.
7. The PEM electrolyzer hydrogen production test device of claim 6 wherein said voltmeter monitors a single average voltage of said PEM electrolyzer within a set range during safe operation.
8. The PEM electrolyzer hydrogen production test device of claim 1 wherein said water tank is configured with a temperature sensor for monitoring the water temperature within said water tank and a water quality detector; the water quality detector is used for monitoring water quality parameters in the water tank.
9. The PEM electrolyzer hydrogen production test device of claim 8 wherein the temperature sensor monitors water temperatures within a set range during safe operation.
10. The PEM electrolyzer hydrogen production test device of claim 8 wherein the conductivity of pure water monitored by said water quality detector is less than or equal to 1.0 μs/cm during safe operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322624856.3U CN220867531U (en) | 2023-09-27 | 2023-09-27 | Hydrogen test device is filled in PEM electrolysis trough system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322624856.3U CN220867531U (en) | 2023-09-27 | 2023-09-27 | Hydrogen test device is filled in PEM electrolysis trough system |
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| Publication Number | Publication Date |
|---|---|
| CN220867531U true CN220867531U (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322624856.3U Active CN220867531U (en) | 2023-09-27 | 2023-09-27 | Hydrogen test device is filled in PEM electrolysis trough system |
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| Country | Link |
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| CN (1) | CN220867531U (en) |
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2023
- 2023-09-27 CN CN202322624856.3U patent/CN220867531U/en active Active
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