CN217997354U - Membrane-free water electrolysis hydrogen production device based on rotary bipolar electrode - Google Patents
Membrane-free water electrolysis hydrogen production device based on rotary bipolar electrode Download PDFInfo
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- CN217997354U CN217997354U CN202221848173.5U CN202221848173U CN217997354U CN 217997354 U CN217997354 U CN 217997354U CN 202221848173 U CN202221848173 U CN 202221848173U CN 217997354 U CN217997354 U CN 217997354U
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 75
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 75
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000001301 oxygen Substances 0.000 claims abstract description 42
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 42
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 230000003647 oxidation Effects 0.000 claims abstract description 5
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 5
- 230000009467 reduction Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 abstract description 18
- 230000007774 longterm Effects 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 abstract description 3
- 229910002640 NiOOH Inorganic materials 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910018661 Ni(OH) Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Abstract
The embodiment of the utility model provides a no membrane electrolysis water hydrogen plant based on rotation type bipolar electrode, including the positive pole that the baffle partitioned cavity formed and educing the oxygen chamber and the negative pole and educing the hydrogen chamber, wherein the positive pole is educed the oxygen chamber and be provided with respectively in the hydrogen chamber of oxygen chamber and negative pole and educe the oxygen electrode and educe the hydrogen electrode; the bipolar electrode is a cobalt-doped foamed nickel electrode and is movably arranged on the partition plate, and a first electrode end and a second electrode end which are oppositely arranged are respectively positioned in the anode oxygen evolution chamber and the cathode hydrogen evolution chamber; and the driving device is used for driving the bipolar electrode to rotate in a plane vertical to the separator, and switching the positions of the first electrode end and the second electrode end to ensure that the first electrode end and the second electrode end carry out anodic oxidation oxygen evolution or cathodic reduction hydrogen evolution. The embodiment realizes the switching of the electrode ends at the two sides of the bipolar electrode in the anode oxygen evolution chamber and the cathode hydrogen evolution chamber, the device is convenient for long-term stable operation, and the production efficiency of hydrogen production by water electrolysis is improved.
Description
Technical Field
The utility model relates to an electrolysis hydrogen manufacturing technical field especially relates to a no membrane electrolysis water hydrogen manufacturing installation based on rotation type bipolar electrode.
Background
At present, a diaphragm is required to be used in an industrial electrolytic cell for producing hydrogen by electrolyzing water, and a high requirement is put on the performance of the diaphragm, and the diaphragm simultaneously needs to have high gas barrier performance, small internal resistance and good long-term operation stability in a strong alkali (or strong acid) environment. However, the use of the separator greatly increases the investment cost and the operation and maintenance cost of the water electrolysis hydrogen production device.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving one of the technical problems in the related art at least to a certain extent.
Therefore, the utility model aims to provide a no membrane electrolysis water hydrogen plant based on rotation type bipolar electrode separates the cavity for positive pole oxygen evolution room and negative pole hydrogen evolution air chamber through setting up the baffle in the cavity, runs through in the baffle and rotates and set up bipolar electrode, and drive arrangement drive bipolar electrode is rotatory carries out the switching of electrode end, realizes the switching of bipolar electrode both sides electrode end in positive pole oxygen evolution room and negative pole hydrogen evolution room, and the device is convenient for long-term steady operation, has improved the production efficiency of electrolysis water hydrogen production.
In order to achieve the purpose, the film-free water electrolysis hydrogen production device based on the rotary bipolar electrode comprises an anode oxygen evolution chamber and a cathode hydrogen evolution chamber which are formed by separating cavities by a partition plate, wherein the anode oxygen evolution chamber and the cathode hydrogen evolution chamber are respectively provided with an oxygen evolution electrode and a hydrogen evolution electrode;
a bipolar electrode; the electrode is a cobalt-doped foamed nickel electrode and is movably arranged on the clapboard, and a first electrode end and a second electrode end which are oppositely arranged are respectively positioned in the anode oxygen evolution chamber and the cathode hydrogen evolution chamber; and
a drive device; the bipolar electrode is used for driving the bipolar electrode to rotate in a plane vertical to the separator, and the positions of the first electrode end and the second electrode end are switched, so that the first electrode end and the second electrode end carry out anodic oxidation oxygen evolution or cathodic reduction hydrogen evolution.
Further, the bipolar electrode structure further comprises a sealing assembly, wherein the sealing assembly comprises a protrusion arranged on the outer side wall of the edge of the bipolar electrode and a sealing layer arranged on the inner side wall of the partition plate, the sealing layer is of an arc-shaped protrusion structure, and a groove matched with the protrusion is formed in the top end of the sealing layer.
Further, the oxygen evolution electrode comprises a first connecting part and a first reaction part, the hydrogen evolution electrode comprises a second connecting part and a second reaction part, and the first connecting part and the second connecting part are respectively connected to the positive electrode and the negative electrode of an external power supply.
Further, the first reaction part and the second reaction part are both arc-shaped annular structures.
Further, the first reaction part and the second reaction part are respectively arranged opposite to and in parallel with the bipolar electrode.
Further, the driving device comprises a motor and a transmission rod connected with the driving end of the motor, and the transmission rod is fixedly connected with the bipolar electrode.
Further, the transfer line include with motor drive is connected the insulator spindle and with insulator spindle fixed connection's dwang, the dwang with bipolar electrode fixed connection.
Further, the driving device further comprises a fixing support, the fixing support is fixedly arranged at the top end of the cavity, and the motor is fixedly connected to the fixing support.
Further, the driving device further comprises a controller, and the controller is electrically connected with the motor.
Further, the outer side wall of the anode oxygen evolution chamber is provided with a first liquid inlet and a first liquid outlet, the outer side wall of the cathode hydrogen evolution chamber is provided with a second liquid inlet and a second liquid outlet, the first liquid inlet is lower than the first liquid outlet, and the second liquid inlet is lower than the second liquid outlet.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a membraneless electrolytic water hydrogen production device based on a rotary bipolar electrode according to an embodiment of the present invention;
FIG. 2 is a schematic view of a partial structure of a membraneless electrolytic water hydrogen production device based on a rotary bipolar electrode according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a sealing assembly of a membraneless electrolytic water hydrogen production device based on a rotary bipolar electrode according to another embodiment of the present invention;
in the figure, 1, oxygen evolution electrode; 1a, a first connecting part; 1b, a first reaction part; 2. a hydrogen evolution electrode; 2a, a second connecting part; 2b, a second reaction part; 3. a bipolar electrode; 4. a partition plate; 5. an anodic oxygen evolution chamber; 6. a cathodic hydrogen evolution gas chamber; 7. a first liquid inlet; 8. a first liquid outlet; 9. rotating the rod; 10. an insulating rod; 11. a motor; 12. a controller; 13. a fixed bracket; 14. a protrusion; 15. a sealing layer; 16. a groove; 17. a second liquid inlet; 18. a second liquid outlet.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic structural diagram of a membraneless water electrolysis hydrogen production device based on a rotary bipolar electrode according to an embodiment of the present invention.
Referring to fig. 1, a membraneless water electrolysis hydrogen production device based on a rotary bipolar electrode comprises a cavity and a partition plate 4 arranged in the cavity, wherein the partition plate 4 divides the cavity into an anode oxygen evolution chamber 5 and a cathode hydrogen evolution chamber 6, an oxygen evolution electrode 1 is arranged in the anode oxygen evolution chamber 5, a hydrogen evolution electrode 2 is arranged in the cathode hydrogen evolution chamber 6, the membraneless water electrolysis hydrogen production device further comprises a bipolar electrode 3 which is arranged in the partition plate 4 in a penetrating and rotating mode, the bipolar electrode 3 and the partition plate 4 are perpendicular to each other, a first electrode end of the bipolar electrode 3 is arranged in the anode oxygen evolution chamber 5, a second electrode end of the bipolar electrode 3 is arranged in the cathode hydrogen evolution chamber 6, and the membraneless water electrolysis hydrogen production device further comprises a driving device, and the driving device is in driving connection with the bipolar electrode 3 and used for driving the bipolar electrode 3 to rotate to switch electrode ends.
In the embodiment, the cavity is a cylindrical cavity structure, the partition plate 4 is a metal partition plate, the cavity is vertically and physically separated by the middle metal partition plate to form an anode oxygen evolution chamber 5 and a cathode hydrogen evolution chamber 6, an oxygen evolution electrode 1 is suspended in the anode oxygen evolution chamber 5, a hydrogen evolution electrode 2 is suspended in the cathode hydrogen evolution chamber 6, the oxygen evolution electrode 1 and the hydrogen evolution electrode 2 partially extend out of the cavity to be externally connected with a power supply, the bipolar electrode 3 is of a disc structure and transversely penetrates through the middle of the metal partition plate, the bipolar electrode 3 can rotate in the partition plate 4 so as to switch the electrode ends on the left side and the right side of the bipolar electrode 3, the circular plane of the partition plate 4 is perpendicular to the vertical direction, the electrode end on the left side of the bipolar electrode 3 is immersed in the alkali liquor in the anode oxygen evolution chamber 5, and the electrode end on the right side of the bipolar electrode 3 is immersed in the alkali liquor in the cathode hydrogen evolution chamber 6. The bipolar electrode 3 is foam nickel doped with cobalt, and the nickel surface in the alkali liquor is subjected to anodic oxidation or cathodic reduction to respectively generate Ni (OH) 2 Or a NiOOH oxide cap layer.
As shown in fig. 3, the membraneless electrolyzed water hydrogen production apparatus based on the rotary bipolar electrode further comprises a sealing assembly, the sealing assembly comprises a protrusion 14 arranged on the outer side wall of the edge of the bipolar electrode 3 and a sealing layer 15 arranged on the inner side wall of the partition plate 4, specifically, two protrusions 14 are oppositely arranged on the front and back of the outer side wall of the edge of the bipolar electrode 3, correspondingly, two sealing layers 15 are oppositely arranged on the front and back of the inner side wall of the partition plate 4, so that the front and back two side edges of the bipolar electrode 3 can be better sealed after the rotation of the bipolar electrode 3 relative to the partition plate 4 is stopped. The sealing layer 15 is an arc-shaped convex structure, and the top end of the sealing layer 15 is provided with a groove 16 matched with the protrusion 14. It will be appreciated that the separator plate 4 has notches formed therein, and in particular the size of the notches is adapted to the size of the bipolar electrode 3, to achieve a good seal of the bipolar electrode 3 against the separator plate 4 while rotating relative to the separator plate 4. In this embodiment, the arc-shaped protrusion structure may be made of elastic rubber, the protrusion 14 may be a rectangular block structure or an arc-shaped block structure or a spherical protrusion structure, preferably, in this embodiment, the protrusion 14 is an arc-shaped strip structure, and the length of the protrusion 14 is equal to the thickness of the bipolar electrode 3, so that the bipolar electrode 3 can be smoothly rotated relative to the separator 4 while the separator 4 is well sealed.
As shown in fig. 2, the oxygen evolution electrode 1 includes a first connection part 1a and a first reaction part 1b, the hydrogen evolution electrode 2 includes a second connection part 2a and a second reaction part 2b, and the first connection part 1a and the second connection part 2a are connected to the positive and negative electrodes of an external power supply, respectively. In this embodiment, the first connecting portion 1a and the second connecting portion 2a are rod-shaped structures, and can be made of metal, and are vertically suspended in the cavity, and the first reaction portion 1b and the second reaction portion 2b are arc-shaped ring structures, and can be made of nickel mesh, and the design of the arc-shaped ring structures can increase the reaction area and improve the reaction efficiency. Specifically, the first reaction portion 1b and the first connection portion 1a are welded and connected, and the second reaction portion 2b and the second connection portion 2a are welded and connected.
The first reaction part 1b and the second reaction part 2b are respectively arranged opposite and parallel to the bipolar electrode 3, and the specific structural arrangement enables the device to achieve a better electrolysis rate.
As shown in fig. 1, the driving device includes a motor 11 and a transmission rod connected to a driving end of the motor 11, and the transmission rod is fixedly connected to the bipolar electrode 3. Specifically, the transmission rod is axially arranged along the vertical direction, the transmission rod vertically penetrates through the partition plate 4 to be connected with the motor 11, and the motor 11 drives the bipolar electrode 3 to rotate through the transmission rod.
The transmission rod comprises an insulation rod 10 in driving connection with a motor 11 and a rotation rod 9 fixedly connected with the insulation rod 10, and the rotation rod 9 is fixedly connected with the bipolar electrode 3. Specifically, the rotating rod 9 is fastened and connected with the insulating rod 10 in the axial direction by means of a threaded connection, so as to facilitate disassembly and maintenance.
The driving device further comprises a fixing support 13, the fixing support 13 is fixedly arranged at the top end of the cavity, and the motor 11 is fixedly connected to the fixing support 13, so that the position of the motor 11 is fixed.
The driving device further comprises a controller 12, and the controller 12 is electrically connected with the motor 11. The controller 12 effects switching of the bipolar electrode 3 between the anodic oxygen evolution chamber 5 and the cathodic hydrogen evolution chamber 6 by controlling the rotation of the motor 11.
As shown in fig. 1, a first liquid inlet 7 and a first liquid outlet 8 are disposed on the outer side wall of the anode oxygen separation chamber 5, a second liquid inlet 17 and a second liquid outlet 18 are disposed on the outer side wall of the cathode hydrogen separation chamber 6, the first liquid inlet 7 is lower than the first liquid outlet 8, and the second liquid inlet 17 is lower than the second liquid outlet 18. Specifically, first inlet 7 and second inlet 17 all are located the bottom of cavity, and first liquid outlet 8 and second liquid outlet 18 all are located the top of cavity, are convenient for realize carrying out the replenishment of electrolyte to the cavity.
In the cathodic hydrogen evolution chamber 6, water molecules are reduced to hydrogen, i.e. H, by the catalytic action of the cathodic hydrogen evolution electrode 2 2 O+e - =1/2H 2 +OH - Ni (OH) in the cathodic hydrogen evolution chamber 2 The bipolar electrode 3 acts as an anode and the following reactions occur: ni (OH) 2 +OH - -e - →NiOOH+H 2 O。
In the anodic oxygen evolution chamber 5, the NiOOH bipolar electrode 3 as the cathode is electrocatalytically reduced to Ni (OH) 2 I.e. NiOOH + H 2 O+e - →Ni(OH) 2 +OH - (ii) a With OH - The surface of the oxygen evolution electrode 1 as an anode is oxidized into oxygen, namely 2OH by electrocatalytic oxidation - -2e - →1/2O 2 +H 2 O。
The utility model discloses in, the voltage that needs according to the electrolytic water hydrogen manufacturing rises threshold value or produces hydrogen speed and descend the threshold value and judge that bipolar electrode 3 electric capacity reaches the saturation, and controller 12 sends the instruction this moment, makes motor 11 drive bipolar electrode 3 and rotates 180 degrees, after rotatory, and the NiOOH who forms in negative pole hydrogen evolution air chamber 6 has been shifted to positive pole and has been analyzed out oxygen chamber 5, and at positive poleNi (OH) formed in the oxygen evolution chamber 5 2 Then the hydrogen is transferred into the cathode hydrogen evolution gas chamber 6, the hydrogen production by water electrolysis is continued, when the capacitance of the bipolar electrode 3 is saturated again, the controller 12 gives out a command again, the motor 11 drives the bipolar electrode 3 to rotate 180 degrees, and the cycle is repeated.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A membraneless water electrolysis hydrogen production device based on a rotary bipolar electrode is characterized by comprising
The separator is used for separating an anode oxygen evolution chamber and a cathode hydrogen evolution chamber which are formed by the cavity body, wherein an oxygen evolution electrode and a hydrogen evolution electrode are respectively arranged in the anode oxygen evolution chamber and the cathode hydrogen evolution chamber;
a bipolar electrode; the electrode is a cobalt-doped foamed nickel electrode and is movably arranged on the clapboard, and a first electrode end and a second electrode end which are oppositely arranged are respectively positioned in the anode oxygen evolution chamber and the cathode hydrogen evolution chamber; and
a drive device; the bipolar electrode is used for driving the bipolar electrode to rotate in a plane vertical to the separator, and the positions of the first electrode end and the second electrode end are switched, so that the first electrode end and the second electrode end carry out anodic oxidation oxygen evolution or cathodic reduction hydrogen evolution.
2. The rotating bipolar electrode-based membraneless electrolytic water hydrogen production device according to claim 1, further comprising a sealing assembly, wherein the sealing assembly comprises a protrusion arranged on an outer side wall of the edge of the bipolar electrode and a sealing layer arranged on an inner side wall of the separator, the sealing layer is of an arc-shaped protrusion structure, and a groove matched with the protrusion is arranged at the top end of the sealing layer.
3. The rotating bipolar electrode-based membraneless electrolytic water hydrogen production device according to claim 1, wherein the oxygen evolution electrode comprises a first connecting part and a first reaction part which are in a rod-shaped structure, the hydrogen evolution electrode comprises a second connecting part and a second reaction part which are in a rod-shaped structure, and the first connecting part and the second connecting part are respectively connected to the positive electrode and the negative electrode of an external power supply.
4. The rotating bipolar electrode-based membraneless electrolytic water hydrogen production device according to claim 3, wherein the first reaction part and the second reaction part are both arc-shaped annular structures.
5. The membrane-free electrolytic water hydrogen production apparatus based on a rotary bipolar electrode according to claim 3, wherein the first reaction part and the second reaction part are respectively disposed opposite and parallel to the bipolar electrode.
6. The rotating bipolar electrode-based membraneless electrolytic water hydrogen production device according to claim 1, wherein the driving device comprises a motor and a driving rod connected with a driving end of the motor, and the driving rod is fixedly connected with the bipolar electrode.
7. The membrane-free electrolytic water hydrogen production device based on the rotary bipolar electrode as claimed in claim 6, wherein the transmission rod comprises an insulation rod in driving connection with the motor and a rotation rod fixedly connected with the insulation rod, and the rotation rod and the bipolar electrode are fixedly connected.
8. The rotating bipolar electrode-based membraneless electrolytic water hydrogen production device according to claim 6, wherein the driving device further comprises a fixing support, the fixing support is fixedly arranged at the top end of the cavity, and the motor is fixedly connected to the fixing support.
9. The rotating bipolar electrode based membraneless electrolytic water hydrogen plant according to claim 6, wherein the driving device further comprises a controller, and the controller is electrically connected with the motor.
10. The membrane-free electrolytic water hydrogen production device based on the rotary bipolar electrode as claimed in claim 1, wherein a first liquid inlet and a first liquid outlet are provided on the outer side wall of the anode oxygen evolution chamber, a second liquid inlet and a second liquid outlet are provided on the outer side wall of the cathode hydrogen evolution chamber, the first liquid inlet is lower than the first liquid outlet, and the second liquid inlet is lower than the second liquid outlet.
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CN116219454A (en) * | 2023-05-11 | 2023-06-06 | 氢联(江苏)高科技有限公司 | Hydrogen production device based on bipolar electrode system for water electrolysis |
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CN116219454A (en) * | 2023-05-11 | 2023-06-06 | 氢联(江苏)高科技有限公司 | Hydrogen production device based on bipolar electrode system for water electrolysis |
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