CN109735865B - Electrolytic hydrogen and oxygen production matching device and preparation method thereof - Google Patents
Electrolytic hydrogen and oxygen production matching device and preparation method thereof Download PDFInfo
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- CN109735865B CN109735865B CN201910041300.7A CN201910041300A CN109735865B CN 109735865 B CN109735865 B CN 109735865B CN 201910041300 A CN201910041300 A CN 201910041300A CN 109735865 B CN109735865 B CN 109735865B
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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
- 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
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Abstract
The invention provides a hydrogen and oxygen preparing and combining device for electrolysis, wherein unique top slotted holes are designed on a first slotted piece and a second slotted piece, for example, top air holes of slotted pieces of an oxygen preparing reaction cavity and a hydrogen preparing reaction cavity are respectively arranged on the left side and the right side to form air passage channels, so that hydrogen and oxygen can be separated more thoroughly. The bottom of the slot pieces forming the oxygen production reaction cavity and the hydrogen production reaction cavity is provided with bottom slot holes for forming liquid path channels, for example, the bottom slot holes are respectively arranged on the right side and the left side, so that the oxygen-containing alkali liquor and the hydrogen-containing alkali liquor can be independently circulated, the contact area of the electrode piece and the electrolyte is increased, and the electrolysis is more efficient. The hydrogen production reaction cavity and the oxygen production reaction cavity are separated by a proton exchange membrane, which is beneficial to reducing the electrode distance, reducing the solution resistance and lowering the energy consumption. The efficient and energy-saving electrolytic hydrogen and oxygen preparation device uses a direct-current power supply for power supply. By combining the measures, the electrolysis efficiency of the electrolysis device is greatly improved, and the electrolysis device is convenient to disassemble, simple to prepare, wider in application range and more flexible to use.
Description
Technical Field
The invention relates to the technical field of hydrogen and oxygen production through electrolysis, in particular to a hydrogen and oxygen production matching device through electrolysis and a preparation method thereof.
Background
With the increasing reduction of fossil energy and the continuous emergence of serious air pollution problems, clean energy is becoming the focus of attention, and hydrogen energy is undoubtedly the most ideal choice. The prior electrolytic hydrogen and oxygen production electrolytic cell has the problems of large volume, high energy consumption (5kWh/Nm 3H 2) and low efficiency (50-70%). The existing electrolytic device has low efficiency due to the large distance (8mm) between the two electrodes, and the existing electrolytic devices have complicated structures and are difficult to assemble and disassemble, so that the application range is limited. Moreover, some electrolyzer structures using asbestos paper as a diaphragm reduce the purity of hydrogen and oxygen, and an electrolyzer (chinese patent application No. 201610439066.X) has a low degree of integration of gas path and electrolyzer separation, and no electrolyte circulation system.
Therefore, there is a need to develop an apparatus for producing hydrogen and oxygen by electrolysis, which has high electrolysis efficiency, wide application range, easy disassembly and flexible use.
Disclosure of Invention
In order to overcome the problems, the invention aims to provide an efficient and energy-saving hydrogen and oxygen production and matching device for electrolysis, which improves the electrolysis efficiency and has simple disassembly and flexible use.
In order to achieve the above object, the present invention provides an electrolytic hydrogen-oxygen producing apparatus, comprising a hydrogen producing unit and an oxygen producing unit which are stacked; the two gas path channels are respectively a hydrogen production gas path channel and an oxygen production gas path channel, the hydrogen production gas path channel penetrates through the top of the hydrogen production unit and the top of the oxygen production unit, the oxygen production gas path channel penetrates through the top of the hydrogen production unit and the top of the oxygen production unit, the hydrogen production gas path channel is communicated with the hydrogen production unit, and the oxygen production gas path channel is communicated with the oxygen production unit; and two liquid way passageways include hydrogen making liquid way passageway and system oxygen liquid way passageway, and hydrogen making liquid way passageway pierces the bottom of hydrogen making unit and the bottom of system oxygen unit, system oxygen liquid way passageway pierces the bottom of hydrogen making unit with the bottom of system oxygen unit, wherein hydrogen making liquid way passageway is linked together with hydrogen making unit, and system oxygen liquid way passageway is linked together with system oxygen unit.
In some embodiments, the hydrogen production unit comprises: the two first groove pieces, and a first sealing film and a first electrode plate which are clamped between the two first groove pieces;
the first grooved sheets are provided with first hollowed-out areas, the first sealing films are provided with second hollowed-out areas matched with the first hollowed-out areas, and the first hollowed-out areas of the two first grooved sheets and the second hollowed-out areas of the first sealing films are stacked to form a first reaction cavity;
the top of the first slotted vane is provided with a first top slotted hole, a second top slotted hole and a first top half through hole positioned between the first top slotted hole and the second top slotted hole; the first top slotted hole penetrates through the first slotted piece in the transverse direction and is communicated with the first hollow area in the longitudinal direction; the second top slotted hole penetrates through the first slotted piece only in the transverse direction and is not communicated with the first hollow area; the stacked first slot pieces enable the first top slot holes to be communicated transversely to form a first air passage, and the second top slot holes are communicated transversely to form a second air passage; the first gas channel is communicated with the first reaction cavity through the first top slotted hole; two first slotted sheets are tightly stacked, so that adjacent first top half through holes are aligned to form a first top through hole; the top of the first sealing film is provided with a first top opening matched with the first top through hole, and the first electrode plate is inserted into the first reaction cavity through the first top through hole and the first top opening;
the bottom of the first slotted vane is provided with a first bottom slotted hole and a second bottom slotted hole; the first bottom slotted hole penetrates through the first slotted piece in the transverse direction and is communicated with the first hollow area in the longitudinal direction; the second bottom slotted hole penetrates through the first slotted piece only in the transverse direction but is not communicated with the first hollow area, the first bottom slotted hole is communicated in the transverse direction to form a first liquid channel through the stacked first slotted pieces, and the second bottom slotted hole is communicated in the transverse direction to form a second liquid channel; the first liquid channel is communicated with the first reaction cavity through the first bottom slotted hole.
In some embodiments, the oxygen generation unit comprises: the two second groove pieces are used for clamping a second sealing film and a second electrode plate which are arranged between the two second groove pieces; the two second groove pieces are in a tightening state, so that the second groove pieces are provided with third hollowed-out areas, the second sealing film is provided with fourth hollowed-out areas matched with the third hollowed-out areas, and the third hollowed-out areas of the two second groove pieces and the fourth hollowed-out areas of the second sealing film are stacked to form a second reaction cavity;
the top of the second slotted vane is provided with a third top slotted hole, a fourth top slotted hole and a second top half through hole positioned between the third top slotted hole and the fourth top slotted hole; the third top slotted hole penetrates through the second slotted piece in the transverse direction and is communicated with the third hollow-out area in the longitudinal direction; the third top slotted hole penetrates through the second slotted piece only in the transverse direction and is not communicated with the third hollow-out area; the stacked second slot pieces enable the third top slot holes to be communicated transversely to form a third air channel, and the fourth top slot holes are communicated transversely to form a fourth air channel; the third gas path channel is communicated with the second reaction cavity through a second top slotted hole; two second slot pieces are tightly stacked, so that adjacent second top half through holes are aligned to form second top through holes; the top of the second sealing film is provided with a second top opening matched with the second top through hole, and the second electrode plate is inserted into the second reaction cavity through the second top through hole and the second top opening;
the bottom of the second slotted vane is provided with a third bottom slotted hole and a fourth bottom slotted hole; the third bottom slotted hole penetrates through the second slotted piece in the transverse direction and is communicated with the third hollow-out area in the longitudinal direction; the fourth bottom slotted hole only penetrates through the second slotted piece in the transverse direction but is not communicated with the third hollowed-out area, the stacked second slotted pieces enable the third bottom slotted hole to be communicated in the transverse direction to form a third liquid path channel, and the fourth bottom slotted hole is communicated in the transverse direction to form a fourth liquid path channel; the third liquid channel is communicated with the second reaction cavity through a third bottom slotted hole; the first gas path channel and the fourth gas path channel form a hydrogen production gas path channel, and the second gas path channel and the third gas path channel form an oxygen production gas path channel; the first liquid channel and the fourth liquid channel form a hydrogen production liquid channel, and the second liquid channel and the third liquid channel form an oxygen production liquid channel.
In some embodiments, the electrode is a nickel foam sheet coated with a catalyst.
In some embodiments, the electrode connections between each hydrogen-producing unit are in parallel.
In some embodiments, the first sealing membrane has the same shape as the first groove piece, and the second sealing membrane has the same shape as the second groove piece.
In some embodiments, a proton exchange membrane is disposed between the hydrogen production unit and the oxygen production unit.
In some embodiments, the proton exchange membrane sandwiched between the first slot sheet and the second slot sheet shields the first hollow area and also shields the second hollow area.
In some embodiments, a third sealing membrane is disposed around the proton exchange membrane, and the third sealing membrane is also sandwiched between the hydrogen production unit and the oxygen production unit.
In some embodiments, the third sealing film has a fifth hollowed-out area matching and smaller than the first hollowed-out area and the third hollowed-out area, the third sealing film is provided with a fifth top slot and a sixth top slot at the top, the fifth top slot is matched with the first top slot and the third top slot, and the sixth top slot is matched with the second top slot and the fourth top slot; and a fifth bottom slotted hole and a sixth bottom slotted hole are formed in the bottom of the third sealing film, the fifth bottom slotted hole is matched with the first bottom slotted hole and the third bottom slotted hole, and the sixth bottom slotted hole is matched with the second bottom slotted hole and the fourth bottom slotted hole.
In some embodiments, the first and second grove tabs, the first and second sealing membranes are identical in shape, configuration and size.
In some embodiments, the material of the first sealing membrane, the second sealing membrane, and the third sealing membrane is polytetrafluoroethylene; the surface of the first slot sheet is covered with polytetrafluoroethylene.
In some embodiments, the hydrogen production units alternate with the oxygen production units and are stacked in a clamping arrangement.
In some embodiments, the outer surfaces of the two sides of the stacked hydrogen production unit and oxygen production unit are provided with outer layer slotted sheets, the top of each outer layer slotted sheet is provided with a seventh top slotted hole and an eighth top slotted hole, and the bottom of each outer layer slotted sheet is provided with a seventh bottom slotted hole and an eighth bottom slotted hole; the seventh top slot is matched with the first top slot; the eighth top slot is matched with the second top slot; the seventh bottom slot is matched with the first bottom slot, and the eighth bottom slot is matched with the second bottom slot; side holes are formed in the edges of the outer layer groove pieces, and bolts are inserted into the side holes and screwed down to clamp the stacked hydrogen production units and the oxygen production units.
In some embodiments, the surface of the outer layer slot piece is covered with polytetrafluoroethylene.
In order to achieve the above object, the present invention further provides a method for preparing the above apparatus for producing hydrogen and oxygen by electrolysis, comprising:
step 1: preparing the hydrogen production unit and the oxygen production unit;
step 2: the hydrogen production unit and the oxygen production unit are stacked, so that a hydrogen production gas path channel and an oxygen production gas path channel penetrate through the top of the hydrogen production unit and the top of the oxygen production unit, and the hydrogen production liquid path channel and the oxygen production liquid path channel penetrate through the bottom of the hydrogen production unit and the bottom of the oxygen production unit; wherein the hydrogen production liquid channel is communicated with the hydrogen production unit, and the oxygen production liquid channel is communicated with the oxygen production unit.
In some embodiments, in step 1, the production of the hydrogen production unit and the production of the oxygen production unit comprise:
step 101: preparing two first groove pieces, a first sealing film and a first electrode piece; preparing two second groove pieces, a second sealing film and a second electrode piece; and preparing a proton exchange membrane;
step 102: clamping a first sealing film and a first electrode plate between the two first groove sheets to form a hydrogen production unit, and clamping a second sealing film and a second electrode plate between the two second groove sheets to form an oxygen production unit; clamping a proton exchange membrane between the hydrogen production unit and the oxygen production unit;
step 103: clamping the hydrogen production unit, the oxygen production unit and a proton exchange membrane clamped between the hydrogen production unit and the oxygen production unit in a compressed state; wherein the hydrogen and oxygen production units formed are the hydrogen and oxygen production units of claim 3.
In some embodiments, the proton exchange membrane sandwiched between the first slot sheet and the second slot sheet shields the first hollow area and also shields the second hollow area.
In some embodiments, in step 1, a third sealing film is further disposed on the periphery of the proton exchange membrane, and the third sealing film is also sandwiched between the hydrogen production unit and the oxygen production unit.
In some embodiments, the third sealing film has a fifth hollowed-out area matching the first hollowed-out area and the third hollowed-out area, the top of the third sealing film is provided with a fifth top slot and a sixth top slot, the fifth top slot is matched with the first top slot and the third top slot, and the sixth top slot is matched with the second top slot and the fourth top slot; and a fifth bottom slotted hole and a sixth bottom slotted hole are formed in the bottom of the third sealing film, the fifth bottom slotted hole is matched with the first bottom slotted hole and the third bottom slotted hole, and the sixth bottom slotted hole is matched with the second bottom slotted hole and the fourth bottom slotted hole.
In some embodiments, a plurality of the hydrogen production units and the oxygen production units are alternately arranged and stacked in a clamping arrangement; side holes are arranged at the edge of the outer layer slot sheet; in the step 1, outer layer slotted sheets are further arranged on the outer surfaces of two sides of the stacked hydrogen production unit and the stacked oxygen production unit; in the step 103, the stacked hydrogen production unit and oxygen production unit are clamped and compressed by inserting bolts into the side holes and tightening them.
According to the electrolytic hydrogen and oxygen production matching device, the unique top slotted holes are designed on the first slotted piece and the second slotted piece, for example, the top air holes of the slotted pieces of the oxygen production reaction cavity and the hydrogen production reaction cavity are respectively arranged on the left side and the right side to form the air passage channel, so that the separation of hydrogen and oxygen is more thorough. The bottom of the slot pieces forming the oxygen production reaction cavity and the hydrogen production reaction cavity is provided with bottom slot holes for forming liquid path channels, for example, the bottom slot holes are respectively arranged on the right side and the left side, so that the oxygen-containing alkali liquor and the hydrogen-containing alkali liquor can be independently circulated, the contact area of the electrode piece and the electrolyte is increased, and the electrolysis is more efficient. The hydrogen production reaction cavity and the oxygen production reaction cavity are separated by a proton exchange membrane, which is beneficial to reducing the electrode distance, reducing the solution resistance and lowering the energy consumption. The efficient and energy-saving electrolytic hydrogen and oxygen preparation device uses a direct-current power supply for power supply. By combining the measures, the electrolysis efficiency of the electrolysis device is greatly improved, and the electrolysis device is convenient to disassemble, simple to prepare, wider in application range and more flexible to use.
Drawings
FIG. 1 is a schematic view of an assembled structure of an electrolytic oxyhydrogen production apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a partial cross-sectional structure of an electrolytic oxyhydrogen generation apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a first slot piece according to an embodiment of the present invention;
FIG. 4 is a schematic side view of the first slot piece of FIG. 3
FIG. 5 is a schematic cross-sectional view of the first slot piece taken along direction AA' in FIG. 2;
FIG. 6 is a schematic cross-sectional view of a second slot piece taken along the direction BB' in FIG. 2
FIG. 7 is a schematic view of a first electrode sheet in a first slot sheet in accordance with one embodiment of the present invention;
fig. 8 is a schematic view of an assembly structure of a first slot sheet and a first electrode sheet according to an embodiment of the invention;
fig. 9 is a schematic view of an assembly structure of a second slot sheet and a second electrode sheet according to an embodiment of the invention;
FIG. 10 is a schematic view of a first sealing membrane of one embodiment of the present invention;
FIG. 11 is an assembly view of a first sealing film and a first electrode sheet according to one embodiment of the present invention;
FIG. 12 is a schematic view of a third sealing membrane of one embodiment of the present invention;
FIG. 13 is a schematic view of a proton exchange membrane according to one embodiment of the present invention;
FIG. 14 is a schematic view of the assembly of a third sealing membrane with a proton exchange membrane according to one embodiment of the present invention;
FIG. 15 is an exploded assembly schematic view of a hydrogen-producing unit according to an embodiment of the present invention;
FIG. 16 is an exploded assembly schematic view of an oxygen generation unit of an embodiment of the present invention;
FIG. 17 is a schematic view of an exploded assembly of a second hydrogen production unit and an oxygen production unit according to one embodiment of the invention.
Detailed Description
In order to make the disclosure of the present invention more comprehensible, the present invention is further described with reference to the following embodiments. The invention is of course not limited to this particular embodiment, and general alternatives known to those skilled in the art are also covered by the scope of the invention.
The electrolytic hydrogen and oxygen production device comprises a hydrogen production unit and an oxygen production unit which are stacked. The two gas path channels are respectively a hydrogen production gas path channel and an oxygen production gas path channel, the two channels penetrate through the top of the hydrogen production unit and the top of the oxygen production unit, the hydrogen production gas path channel is communicated with the hydrogen production unit, and the oxygen production gas path channel is communicated with the oxygen production unit; and two liquid path passageways include hydrogen production liquid path passageway and oxygen generation liquid path passageway, and these two liquid path passageways all pierce through the bottom of hydrogen production unit and the bottom of oxygen generation unit, and wherein hydrogen production liquid path passageway is linked together with the hydrogen production unit, and oxygen generation liquid path passageway is linked together with the oxygen generation unit.
The present invention will be described in further detail with reference to the following embodiments and accompanying drawings 1 to 17.
Referring to fig. 1 and 2, in fig. 2, in order to show the position relationship of the hydrogen production gas path channel, the oxygen production gas path channel, the hydrogen production liquid path channel, the oxygen production liquid path channel, and the first electrode sheet and the second electrode sheet, the shielding portions are all disposed away, and meanwhile, the dashed line frame also removes part of the first slot sheet and part of the second slot sheet to show the hydrogen production gas path channel, the oxygen production gas path channel, the hydrogen production liquid path channel, and the oxygen production liquid path channel. The hydrogen production unit H and the oxygen production unit 0 are stacked. The top of the hydrogen production unit H and the oxygen production unit 0 is provided with a hydrogen production gas path channel A1 and an oxygen production gas path channel (in FIG. 2, the oxygen production gas path channel is not shown because the A1 shields the oxygen production gas path channel and the through hole with the sand grain filling pattern at the top of the oxygen production unit is connected). The hydrogen production gas path channel A1 penetrates through the hydrogen production unit H and the oxygen production unit 0, and the oxygen production gas path channel A1 penetrates through the hydrogen production unit H and the oxygen production unit O. The hydrogen production gas path A1 is communicated with the hydrogen production unit H, and the oxygen production gas path is communicated with the oxygen production unit O. In addition, the bottom of the hydrogen production unit H and the oxygen production unit O has a hydrogen production liquid path a2 and an oxygen production liquid path (in fig. 2, the oxygen production liquid path is not shown due to a2 shielding, which is connected by a through hole with a sand grain filling pattern at the bottom of the oxygen production unit). The hydrogen production liquid path channel A1 penetrates through the hydrogen production unit H and the oxygen production unit O, and the oxygen production liquid path channel penetrates through the hydrogen production unit H and the oxygen production unit O, wherein the hydrogen production liquid path channel A2 is communicated with the hydrogen production unit H, and the oxygen production liquid path channel is communicated with the oxygen production unit O.
The structure of the hydrogen production unit and the structure of the oxygen production unit of this example will be specifically described below.
Referring to fig. 2 to 8 and 15, the hydrogen production unit H includes: the first sealing film M1 and the first electrode sheet 031 are sandwiched between the two first groove pieces 01. Referring to fig. 16, the oxygen generation unit O includes: two second slotted sheets 02, a second sealing film M2 and a second electrode plate 032 which are clamped between the two second slotted sheets 02. A plurality of hydrogen production units H and a plurality of oxygen production units O are alternately arranged and stacked and clamped. The hydrogen production unit H and the oxygen production unit O are separated by a proton exchange membrane.
In this embodiment, referring to fig. 3, the first slot sheet 01 and the second slot sheet may have the same external dimensions and structure, the external dimensions are 100mm × 80mm × 6mm (height × width × thickness), and the internal electrolyte accommodating portion has the dimensions of 80mm × 64mm × 6mm (height × width × thickness). Referring to fig. 11 in combination with fig. 3, the shape of the first sealing film M1 is the same as that of the first groove 01, and referring to fig. 16, the shape of the second sealing film M2 is the same as that of the first sealing film M1, and the shape of the second sealing film M2 is the same as that of the second groove 02.
Preferably, in order to improve the sealing effect, as shown in fig. 13, a third sealing film M3 is disposed on the periphery of the proton exchange membrane Z, please refer to fig. 1, the third sealing film M3 is also sandwiched between the hydrogen production unit H and the oxygen production unit O.
In order to further simplify the manufacturing process, the first groove pieces 01, the second groove pieces 02, the first sealing film M1, the second sealing film M2, and the third sealing film M3 are identical in shape, structure, and size.
The material of the first sealing film M1, the second sealing film M2, and the third sealing film M3 may be polytetrafluoroethylene. The surface of the first slot sheet 01 can be covered with polytetrafluoroethylene in a wrapping mode, the surface of the second slot sheet 02 can be covered with polytetrafluoroethylene in a wrapping mode, and strong alkali corrosion resistance is improved.
The first slot sheet 01 and the second slot sheet 02 can be made of glass, stainless steel, metal and the like, and polytetrafluoroethylene can be plated on the surfaces of the first slot sheet 01 and the second slot sheet 02 in an electroplating mode.
As shown in fig. 1 and 2, in order to further clamp and stack the alternating hydrogen production unit H and oxygen production unit O, outer layer slot sheets 04 are arranged on the outer surfaces of two sides of the stacked hydrogen production unit H and oxygen production unit O, side holes are arranged on the edges of the outer layer slot sheets 04, as shown in fig. 17, the outer layer slot sheets 04 are inserted into the side holes through bolts 05 and screwed tightly to clamp the stacked hydrogen production unit H and oxygen production unit O. The surface of the outer layer slot sheet 04 is covered with polytetrafluoroethylene, so that the strong alkali corrosion resistance is improved. Here, referring to fig. 1, 2 and 15 to 17, the edges of the first slot piece 01, the second slot piece 02, the first sealing film M1, the second sealing film M2 and the third sealing film M3 are all provided with side holes, and the side holes between these structures are communicated by stacking the first slot piece 01, the second slot piece 02, the first sealing film M1, the second sealing film M2 and the third sealing film M3, so that the bolts 05 can penetrate through these side holes to clamp the two outer layer slot pieces 04 inwards.
Here, a fourth sealing film M2 is further interposed between the outer layer groove piece 04 and the hydrogen production unit H and oxygen production unit O, as shown in fig. 17. As can be seen from fig. 10, the fourth sealing film M2 has the same shape and structure as the first sealing film M1.
Next, the specific structure and the fitting relationship between the first notch 01, the second notch 02, the first sealing film M1, the second sealing film M2, the third sealing film M3, the first electrode sheet 031, the second electrode sheet 032, and the proton exchange membrane Z of the present embodiment will be described in detail.
Referring to fig. 3-6 in combination with fig. 1, 2 and 10, in the hydrogen production unit, the first groove 01 has a first hollow area, the first sealing film M1 has a second hollow area matching the first hollow area, and the first hollow area of the first groove 01 and the second hollow area of the first sealing film M1 are stacked to form a first reaction chamber.
Referring to fig. 3 to 5, fig. 3 is a front view of the first slot piece 01, fig. 5 is a cross-sectional view of the first slot piece 01 along the direction AA' in fig. 1, fig. 4 is a side view of the first slot piece 01, and the dotted line in fig. 4 represents the positions of the first top slot 101 and the third bottom slot 103. Referring to fig. 3, the first slot piece 01 has a first top slot 101, a second top slot 102 and a first top half-through hole 106 between the first top slot 101 and the second top slot 102 at the top; referring to fig. 5, the first top slot 101 penetrates the first slot 01 in the transverse direction and is connected to the first hollow area in the longitudinal direction; the second top slot 102 penetrates the first slot 01 only in the transverse direction but is not communicated with the first hollow area; referring to fig. 2, the stacked first slots 01 allow the first top slots 101 to communicate laterally to form a first air passage, and the second top slots 102 to communicate laterally to form a second air passage; the first gas channel is communicated with the first reaction cavity through the first top slotted hole 101;
referring to fig. 3 to 5, the first slot piece 01 has a first bottom slot 103 and a second bottom slot 104 at the bottom; referring to fig. 5, the first bottom slot 103 penetrates the first slot 01 in the transverse direction and is connected to the first hollow area in the longitudinal direction; the second bottom slot 104 only penetrates through the first slot 01 in the transverse direction but is not communicated with the first hollow area, the first slot 01 is transversely communicated with the first bottom slot 103 to form a first liquid channel through the stacked first slot 01, and the second bottom slot 104 is transversely communicated to form a second liquid channel; the first liquid path channel is communicated with the first reaction cavity through the first bottom slotted hole 103.
Referring to fig. 7 and 8, in addition to the matching relationship between the first electrode sheet 031 and the first top half through holes 106, two first slot sheets 01 are tightly stacked such that the adjacent first top half through holes 106 are aligned to form a first top through hole; the first electrode sheet 031 is inserted into the first reaction chamber through the first top through-hole.
Referring to fig. 10 and 3, the first sealing film M1 has the same structure and shape as the first groove pieces 01. Both are provided with a vent slot hole and a liquid through slot hole at the top and a side hole at the side. This is designed for the assembly of the oxyhydrogen mating apparatus of this example. As shown in fig. 11, the first sealing film M1 has the same shape and structure as the first groove pieces 01 in order to assemble the first electrode sheet 031 and the first sealing film M1, so that the first sealing film M1 functions to seal the first reaction chamber when the first electrode sheet 031 is inserted into the first reaction chamber formed by the first groove pieces 01. The specific way is that two pieces of first sealing films M1 clamp the first electrode sheet 031, thereby playing a role in sealing protection.
Referring to fig. 6 and 16 in combination with fig. 1 and 2, in the oxygen generation unit O, the two second slots 02 are in a tightened state, so that the second slots 02 have a third hollow area, the second sealing film M2 has a fourth hollow area matched with the third hollow area, and the third hollow area of the two second slots 02 and the fourth hollow area of the second sealing film M2 are stacked to form a second reaction chamber;
referring to fig. 5 and 6, the second slot sheet 02 and the first slot sheet 01 have the same structure and shape as each other, and are different from each other only in the top slot structure when viewed from the front. Referring to fig. 6, the second slot 02 has a third top slot 202, a fourth top slot 201 and a second top half-through hole 206 between the third top slot 202 and the fourth top slot 201 at the top; the third top slot 202 penetrates the second slot sheet 02 in the transverse direction and is communicated with the third hollow-out area in the longitudinal direction; the third top slot 202 penetrates the second slot 02 only in the lateral direction but does not communicate with the third hollowed-out area; the stacked second slot pieces 02 enable the third top slot holes 202 to be communicated transversely to form a third air passage channel, and the fourth top slot holes 201 to be communicated transversely to form a fourth air passage channel; the third gas path channel communicates with the second reaction chamber through the second top slot 202.
Referring to fig. 6, the bottom of the second slot 02 has a third bottom slot 203 and a fourth bottom slot 204; the third bottom slot 203 penetrates the second slot 02 in the transverse direction and is communicated with the third hollow-out area in the longitudinal direction; the fourth bottom slot 204 only penetrates through the second slot 02 in the transverse direction but is not communicated with the third hollow area, the stacked second slot 02 enables the third bottom slot 203 to be communicated in the transverse direction to form a third liquid path channel, and the fourth bottom slot 204 is communicated in the transverse direction to form a fourth liquid path channel; the third liquid channel is communicated with the second reaction cavity through a third bottom slotted hole 203; the first gas path channel and the fourth gas path channel form a hydrogen production gas path channel A1, and the second gas path channel and the third gas path channel form an oxygen production gas path channel; the first liquid channel and the fourth liquid channel form a hydrogen production liquid channel A2, and the second liquid channel and the third liquid channel form an oxygen production liquid channel. That is, the first air channel and the fourth air channel are communicated with each other, and the second air channel and the third air channel are communicated with each other. The first liquid channel and the fourth liquid channel are the same channel, and the second liquid channel and the third liquid channel are the same channel.
In this embodiment, referring to fig. 5 and fig. 6, the structure of the second top half through hole 206 is the same as that of the first top half through hole 106, and referring to fig. 9, the matching relationship between the second top half through hole 206 and the second electrode plate 032 is the same as that between the first top half through hole 106 and the first electrode plate 031 in fig. 8. Two second slot pieces 02 are tightly stacked so that adjacent second top half-vias 206 are aligned to form a second top via; the second electrode plate 032 is inserted into the second reaction chamber through the second top through hole.
Referring to fig. 16 and 11 again, in the assembled relationship between the second electrode plate 031 and the second sealing film M2, the second sealing film M2 has the same shape and structure as the second groove 02, so that when the second electrode plate 032 is inserted into the second reaction chamber formed by the second groove 02, the second sealing film M2 serves to seal the second reaction chamber. The specific mode is that two pieces of second sealing films M2 clamp the second electrode plate 032, so as to play a role in sealing protection.
Referring to fig. 12, in the present embodiment, a fifth hollow area is disposed in the third sealing film M3, and the first hollow area, the second hollow area, the third hollow area, and the fourth hollow area are matched with each other. The fifth hollowed-out area is matched with the first hollowed-out area and the third hollowed-out area and is smaller than the first hollowed-out area and the second hollowed-out area, and when the proton exchange membrane is overlapped with the third sealing membrane M3, an overlapped area can appear. In addition, the third sealing film M3 has a fifth top slot (upper left in FIG. 12) and a sixth top slot (upper right in FIG. 12) on the top, please refer to FIGS. 5 and 6, the fifth top slot is matched with the first top slot 101 and the third top slot 202, and the sixth top slot is matched with the second top slot 102 and the fourth top slot 201; the bottom of the third sealing film M3 is provided with a fifth bottom slot (lower left in FIG. 12) which mates with the first bottom slot 103, the third bottom slot 203, and a sixth bottom slot (lower right in FIG. 12) which mates with the second bottom slot 104, the fourth bottom slot 204.
In this embodiment, the first groove pieces 01, the second groove pieces 02, the first sealing film M1, the second sealing film M2, and the fourth sealing film may have the same structure, shape, and size. This makes the manufacturing process simpler.
In addition, referring to fig. 13 in conjunction with fig. 17, the proton exchange membrane Z functions to separate the hydrogen production unit H and the oxygen production unit O. Here, referring to fig. 12, when the proton exchange membrane Z sandwiched between the first slot piece 01 and the second slot piece 01 overlaps the third sealing membrane M3, the third hollow area is also blocked. The area of the proton exchange membrane Z may be larger than the first hollow area and also larger than the second hollow area, and at this time, the edge of the proton exchange membrane Z partially overlaps with the third sealing membrane M3. The proton exchange membrane may be less than 1mm thick. As shown in fig. 14, the proton exchange membrane Z is an assembled structure in which the third sealing membrane M3 is stacked.
In this embodiment, the first electrode plate 031 and the second electrode plate 032 are made of foam nickel plates loaded with catalyst, and the shape may be rectangular, and the electrodes between the hydrogen production units H are connected in parallel. The first electrode plate 031 is a cathode, and the second electrode plate 032 is an anode.
Referring to fig. 17, fig. 17 is a diagram illustrating a hydrogen production unit and an oxygen production unit to illustrate the assembling and matching relationship of the hydrogen production unit, the oxygen production unit, the fourth sealing film, the proton exchange membrane, the third sealing film and the outer layer slot, but not to limit the scope of the present invention. In the electrolytic hydrogen and oxygen production configuration device of the embodiment, the hydrogen production unit H and the oxygen production unit O can be respectively not less than 3 groups. In a test, 3 groups of hydrogen production units, 3 groups of oxygen production units, 3 groups of hydrogen production units connected in parallel, 3 groups of oxygen production units connected in parallel, electrolyte component of 5.3% (weight percent) of potassium hydroxide, solution dosage of 400mL, voltage of 2V, current of 21 Amp, time of 30 minutes, test results show that 4.86L of hydrogen and 2.43L of oxygen are obtained, the total power consumption is 0.021% (about 4.3kWh/Nm 3H 2), and the electrolytic efficiency is 83%. Therefore, the electrolytic hydrogen and oxygen production matching device is simple in structure, and the electrolytic efficiency is effectively improved.
Next, the method for producing the above electrolytic oxyhydrogen production apparatus according to the present embodiment is described in detail, and includes:
step 1: preparing a hydrogen production unit and an oxygen production unit;
specifically, the step 1 comprises the following steps:
step 101: preparing two first groove pieces, a first sealing film and a first electrode piece; preparing two second groove pieces, a second sealing film and a second electrode piece; and preparing a proton exchange membrane;
step 102: clamping a first sealing film and a first electrode plate between the two first groove sheets to form a hydrogen production unit, and clamping a second sealing film and a second electrode plate between the two second groove sheets to form an oxygen production unit; clamping a proton exchange membrane between the hydrogen production unit and the oxygen production unit;
step 103: clamping the hydrogen production unit, the oxygen production unit and a proton exchange membrane clamped between the hydrogen production unit and the oxygen production unit in a compressed state; the hydrogen production unit and the oxygen production unit are the hydrogen production unit and the oxygen production unit described above in this embodiment, and reference may be made to the above description, which is not described herein again.
Here, the hydrogen production units and the oxygen production units are alternately arranged and stacked and clamped; side holes are arranged at the edge of the outer layer slot sheet; in step 102, outer layer slot pieces are further arranged on the outer surfaces of two sides of the stacked hydrogen production unit and oxygen production unit.
In step 103, the stacked hydrogen and oxygen production units are clamped and compressed by inserting bolts into the side holes and tightening.
Step 2: the hydrogen production unit and the oxygen production unit are stacked, so that a hydrogen production gas path channel and an oxygen production gas path channel penetrate through the top of the hydrogen production unit and the top of the oxygen production unit, and the hydrogen production liquid path channel and the oxygen production liquid path channel penetrate through the bottom of the hydrogen production unit and the bottom of the oxygen production unit.
Therefore, the electrolytic hydrogen and oxygen preparation set device has simple structure, greatly simplifies the preparation method, improves the production efficiency and is particularly suitable for large-scale production.
Although the present invention has been described with reference to preferred embodiments, which are illustrated for the purpose of illustration only and not for the purpose of limitation, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. An electrolytic hydrogen and oxygen production device is characterized by comprising a hydrogen production unit and an oxygen production unit which are stacked; the two gas path channels are respectively a hydrogen production gas path channel and an oxygen production gas path channel, the hydrogen production gas path channel penetrates through the top of the hydrogen production unit and the top of the oxygen production unit, the oxygen production gas path channel penetrates through the top of the hydrogen production unit and the top of the oxygen production unit, the hydrogen production gas path channel is communicated with the hydrogen production unit, and the oxygen production gas path channel is communicated with the oxygen production unit; the two liquid path channels comprise a hydrogen production liquid path channel and an oxygen production liquid path channel, the hydrogen production liquid path channel penetrates through the bottom of the hydrogen production unit and the bottom of the oxygen production unit, the oxygen production liquid path channel penetrates through the bottom of the hydrogen production unit and the bottom of the oxygen production unit, the hydrogen production liquid path channel is communicated with the hydrogen production unit, and the oxygen production liquid path channel is communicated with the oxygen production unit; the hydrogen production liquid enters the hydrogen production liquid path from the hydrogen production liquid inlet, circulates in the hydrogen production units and then flows out from the hydrogen production liquid outlet; the two ends of the oxygen generation liquid path channel are respectively an oxygen generation liquid inlet and an oxygen generation liquid outlet; oxygen-making liquid enters the oxygen-making liquid path from the oxygen-making liquid inlet and flows out from the oxygen-making liquid outlet after being subjected to internal circulation of the oxygen-making units; the two ends of the hydrogen production pipeline channel are provided with oxygen production air outlets, and hydrogen produced by the hydrogen production units flows out of the hydrogen production air outlets along the hydrogen production pipeline channel; the two ends of the oxygen generation gas path channel are oxygen generation gas outlets, and oxygen generated from the oxygen generation units flows out of the oxygen generation gas outlets along the oxygen generation gas path channel;
the hydrogen production unit includes: the two first groove pieces, and a first sealing film and a first electrode plate which are clamped between the two first groove pieces;
the oxygen generation unit comprises: the two second groove pieces are used for clamping a second sealing film and a second electrode plate which are arranged between the two second groove pieces;
the shape of the first sealing film is the same as that of the first groove piece, and the shape of the second sealing film is the same as that of the second groove piece; the first slotted piece and the second slotted piece are the same in structure, shape and size;
a proton exchange membrane is arranged between the hydrogen production unit and the oxygen production unit;
a third sealing film is arranged on the periphery of the proton exchange membrane and is also clamped between the hydrogen production unit and the oxygen production unit;
the middle of the first groove piece is provided with a first hollow area, the middle of the first sealing film is provided with a second hollow area, the middle of the second groove piece is provided with a third hollow area, the middle of the second sealing film is provided with a fourth hollow area, and the middle of the third sealing film is provided with a fifth hollow area; the fifth hollow area is matched with the first hollow area and the third hollow area and is smaller than the first hollow area and the third hollow area;
stacking the first hollow areas of the two first groove pieces and the second hollow area of the first sealing film to form a first reaction cavity; the top of the first slotted vane is provided with a first top slotted hole, a second top slotted hole and a first top half through hole positioned between the first top slotted hole and the second top slotted hole; the first top slotted hole penetrates through the first slotted piece in the transverse direction and is communicated with the first hollow area in the longitudinal direction; the second top slotted hole penetrates through the first slotted piece only in the transverse direction and is not communicated with the first hollow area; the stacked first slot pieces enable the first top slot holes to be communicated transversely to form a first air passage, and the second top slot holes are communicated transversely to form a second air passage; the first gas channel is communicated with the first reaction cavity through the first top slotted hole;
two first slotted sheets are tightly stacked, so that adjacent first top half through holes are aligned to form a first top through hole; the top of the first sealing film is provided with a first top opening matched with the first top through hole, and the first electrode plate is inserted into the first reaction cavity through the first top through hole and the first top opening; the first electrode sheet comprises a first upper structure and a first lower structure; the first upper structure is narrower than the first lower structure, and the first upper structure can be inserted into the first top through hole;
the bottom of the first slotted vane is provided with a first bottom slotted hole and a second bottom slotted hole; the first bottom slotted hole penetrates through the first slotted piece in the transverse direction and is communicated with the first hollow area in the longitudinal direction; the second bottom slotted hole penetrates through the first slotted piece only in the transverse direction but is not communicated with the first hollow area, the first bottom slotted hole is communicated in the transverse direction to form a first liquid channel through the stacked first slotted pieces, and the second bottom slotted hole is communicated in the transverse direction to form a second liquid channel; the first liquid channel is communicated with the first reaction cavity through a first bottom slotted hole;
the second grooved sheets are provided with third hollowed-out areas, the second sealing film is provided with fourth hollowed-out areas matched with the third hollowed-out areas, and the third hollowed-out areas of the two second grooved sheets and the fourth hollowed-out areas of the two second sealing films are stacked to form a second reaction cavity;
the top of the second slotted vane is provided with a third top slotted hole, a fourth top slotted hole and a second top half through hole positioned between the third top slotted hole and the fourth top slotted hole; the third top slotted hole penetrates through the second slotted piece in the transverse direction and is communicated with the third hollow-out area in the longitudinal direction; the fourth top slotted hole penetrates through the second slotted piece only in the transverse direction and is not communicated with the third hollow-out area; the stacked second slot pieces enable the third top slot holes to be communicated transversely to form a third air channel, and the fourth top slot holes are communicated transversely to form a fourth air channel; the third gas path channel is communicated with the second reaction cavity through a third top slotted hole; two second slot pieces are tightly stacked, so that adjacent second top half through holes are aligned to form second top through holes; the top of the second sealing film is provided with a second top opening matched with the second top through hole, and the second electrode plate is inserted into the second reaction cavity through the second top through hole and the second top opening; the second electrode sheet comprises a second upper structure and a second lower structure; the second upper structure is narrower than the second lower structure, and the second upper structure can be inserted into the second top through hole;
the first air channel and the fourth air channel are communicated in a penetrating way, and the third air channel and the second air channel are communicated in a penetrating way;
the bottom of the second slotted vane is provided with a third bottom slotted hole and a fourth bottom slotted hole; the third bottom slotted hole penetrates through the second slotted piece in the transverse direction and is communicated with the third hollow-out area in the longitudinal direction; the fourth bottom slotted hole only penetrates through the second slotted piece in the transverse direction but is not communicated with the third hollowed-out area, the stacked second slotted pieces enable the third bottom slotted hole to be communicated in the transverse direction to form a third liquid path channel, and the fourth bottom slotted hole is communicated in the transverse direction to form a fourth liquid path channel; the third liquid channel is communicated with the second reaction cavity through a third bottom slotted hole; the first liquid channel is communicated with the fourth liquid channel in a penetrating way, and the second liquid channel is communicated with the third liquid channel in a penetrating way; the first gas path channel and the fourth gas path channel form a hydrogen production gas path channel, and the second gas path channel and the third gas path channel form an oxygen production gas path channel; the first liquid channel and the fourth liquid channel form a hydrogen production liquid channel, and the second liquid channel and the third liquid channel form an oxygen production liquid channel.
2. The electrolytic hydrogen and oxygen production device according to claim 1, wherein the electrode is a foamed nickel sheet coated with a catalyst.
3. The electrolytic hydrogen and oxygen production apparatus according to claim 2, wherein the electrodes between each hydrogen production unit are connected in parallel.
4. The device for producing hydrogen and oxygen by electrolysis according to claim 1, wherein the proton exchange membrane sandwiched between the first slot sheet and the second slot sheet shields the first hollow area and also shields the second hollow area.
5. The electrolytic oxyhydrogen production apparatus according to claim 1, wherein the third sealing film is provided with a fifth top slot and a sixth top slot on top, the fifth top slot is engaged with the first top slot and the third top slot, and the sixth top slot is engaged with the second top slot and the fourth top slot; and a fifth bottom slotted hole and a sixth bottom slotted hole are formed in the bottom of the third sealing film, the fifth bottom slotted hole is matched with the first bottom slotted hole and the third bottom slotted hole, and the sixth bottom slotted hole is matched with the second bottom slotted hole and the fourth bottom slotted hole.
6. The electrolytic oxyhydrogen production apparatus according to claim 1, wherein the first groove piece, the second groove piece, the first sealing film, and the second sealing film are identical in shape, structure, and size.
7. The electrolytic oxyhydrogen production apparatus according to claim 6, wherein the material of the first sealing film, the second sealing film, and the third sealing film is polytetrafluoroethylene; the surface of the first slot sheet is covered with polytetrafluoroethylene.
8. The electrolytic hydrogen and oxygen production device according to claim 1, wherein the hydrogen production unit and the oxygen production unit are alternately arranged and stacked and clamped.
9. The electrolytic hydrogen and oxygen production device according to claim 8, wherein the outer surfaces of the two sides of the stacked hydrogen production unit and oxygen production unit are provided with outer layer slots, the top of the outer layer slots are provided with a seventh top slot and an eighth top slot, and the bottom of the outer layer slots is provided with a seventh bottom slot and an eighth bottom slot; the seventh top slot is matched with the first top slot; the eighth top slot is matched with the second top slot; the seventh bottom slot is matched with the first bottom slot, and the eighth bottom slot is matched with the second bottom slot; side holes are formed in the edges of the outer layer groove pieces, and bolts are inserted into the side holes and screwed down to clamp the stacked hydrogen production units and the oxygen production units.
10. The electrolytic oxyhydrogen production apparatus according to claim 9, wherein the surface of the outer layer groove piece is covered with polytetrafluoroethylene.
11. A method for producing an electrolytic oxyhydrogen production apparatus according to any one of claims 1 to 10, comprising the steps of:
step 1: preparing the hydrogen production unit and the oxygen production unit; wherein the preparation of the hydrogen production unit and the preparation of the oxygen production unit comprise:
step 101: preparing two first groove pieces, a first sealing film and a first electrode piece; preparing two second groove pieces, a second sealing film and a second electrode piece; and preparing a proton exchange membrane;
step 102: clamping a first sealing film and a first electrode plate between the two first groove sheets to form a hydrogen production unit, and clamping a second sealing film and a second electrode plate between the two second groove sheets to form an oxygen production unit; clamping a proton exchange membrane between the hydrogen production unit and the oxygen production unit;
step 103: clamping the hydrogen production unit, the oxygen production unit and a proton exchange membrane clamped between the hydrogen production unit and the oxygen production unit in a compressed state;
the periphery of the proton exchange membrane is also provided with a third sealing membrane, and the third sealing membrane is also clamped between the hydrogen production unit and the oxygen production unit;
step 2: the hydrogen production unit and the oxygen production unit are stacked, so that a hydrogen production gas path channel and an oxygen production gas path channel penetrate through the top of the hydrogen production unit and the top of the oxygen production unit, and the hydrogen production liquid path channel and the oxygen production liquid path channel penetrate through the bottom of the hydrogen production unit and the bottom of the oxygen production unit; wherein the hydrogen production liquid channel is communicated with the hydrogen production unit, and the oxygen production liquid channel is communicated with the oxygen production unit.
12. The method according to claim 11, wherein said proton exchange membrane disposed between said first and second slots shields said first hollow area and said second hollow area.
13. The method for preparing an oxyhydrogen device according to claim 11, wherein the third sealing film has a fifth hollowed-out area matching the first hollowed-out area and the third hollowed-out area, and a fifth top slot matching the first top slot and the third top slot and a sixth top slot matching the second top slot and the fourth top slot are disposed on top of the third sealing film; and a fifth bottom slotted hole and a sixth bottom slotted hole are formed in the bottom of the third sealing film, the fifth bottom slotted hole is matched with the first bottom slotted hole and the third bottom slotted hole, and the sixth bottom slotted hole is matched with the second bottom slotted hole and the fourth bottom slotted hole.
14. The production method of an electrolytic hydrogen-oxygen production device according to claim 11, wherein a plurality of the hydrogen production units and the oxygen production units are alternately arranged and stacked in a clamping arrangement; side holes are arranged at the edge of the outer layer slot sheet; in the step 1, outer layer slotted sheets are further arranged on the outer surfaces of two sides of the stacked hydrogen production unit and the stacked oxygen production unit; in the step 103, the stacked hydrogen production unit and oxygen production unit are clamped and compressed by inserting bolts into the side holes and tightening them.
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| CN1146501A (en) * | 1995-09-26 | 1997-04-02 | 王树声 | Generator for separating hydrogen and oxygen by electrolyzing water |
| CN2327699Y (en) * | 1997-11-26 | 1999-07-07 | 孙广森 | Laminated electrolyzing water tank |
| CN2763286Y (en) * | 2005-01-17 | 2006-03-08 | 徐文星 | Diaphragm exchanging device for folding electrolytic cell |
| CN2905825Y (en) * | 2006-05-26 | 2007-05-30 | 宁夏元亨科技开发有限公司 | Stacked integrated type electrochemical oxygen-generating tank |
| CN2915887Y (en) * | 2006-06-08 | 2007-06-27 | 娄底市德胜能源设备发展有限公司 | Hydrogen and oxygen water path separated type electrolytic tank |
| CN2921040Y (en) * | 2006-06-08 | 2007-07-11 | 宁夏元亨科技开发有限公司 | Superimposed integrated electrochemical oxygen generating tank |
| FR2971262B1 (en) * | 2011-02-03 | 2013-09-13 | Ceram Hyd | ELECTROLYSER AND ASSEMBLY COMPRISING SAME, IN PARTICULAR FOR THE PRODUCTION OF H2 AND O2 |
| WO2018139597A1 (en) * | 2017-01-26 | 2018-08-02 | 旭化成株式会社 | Electrolytic cell, electrolysis device, and electrolysis method |
| CN206692747U (en) * | 2017-04-18 | 2017-12-01 | 深圳氢爱天下健康科技控股有限公司 | Hydrogen-oxygen separating film module |
| CN108545820A (en) * | 2018-06-12 | 2018-09-18 | 宁波龙巍环境科技有限公司 | Moment goes out hydrogen-rich water module |
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Application publication date: 20190510 Assignee: Suzhou Juna New Material Technology Co.,Ltd. Assignor: Shanghai juna New Material Technology Co.,Ltd. Contract record no.: X2023980034440 Denomination of invention: Electrolytic hydrogen and oxygen preparation device and its preparation method Granted publication date: 20210302 License type: Common License Record date: 20230406 |
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Application publication date: 20190510 Assignee: Chengdu Juna New Materials Technology Co.,Ltd. Assignor: Shanghai juna New Material Technology Co.,Ltd. Contract record no.: X2023980035097 Denomination of invention: Electrolytic hydrogen and oxygen preparation device and its preparation method Granted publication date: 20210302 License type: Common License Record date: 20230426 |
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