CN117587433A - Low-energy alkaline water electrolysis hydrogen production device and installation method - Google Patents
Low-energy alkaline water electrolysis hydrogen production device and installation method Download PDFInfo
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- CN117587433A CN117587433A CN202311559368.7A CN202311559368A CN117587433A CN 117587433 A CN117587433 A CN 117587433A CN 202311559368 A CN202311559368 A CN 202311559368A CN 117587433 A CN117587433 A CN 117587433A
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- net
- liquid inlet
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- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 61
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000001257 hydrogen Substances 0.000 title claims abstract description 31
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 9
- 238000009434 installation Methods 0.000 title claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 110
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims description 101
- 238000007789 sealing Methods 0.000 claims description 36
- 238000003466 welding Methods 0.000 claims description 9
- 238000005904 alkaline hydrolysis reaction Methods 0.000 claims 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000003792 electrolyte Substances 0.000 description 25
- 239000007789 gas Substances 0.000 description 20
- 238000004891 communication Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/042—Electrodes formed of a single material
- C25B11/046—Alloys
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a low-energy consumption alkaline water electrolysis hydrogen production device, which comprises: the device comprises a mounting frame and a plurality of electrolysis mechanisms arranged on the mounting frame, wherein the electrolysis mechanisms comprise a nickel plate, an anode component and a cathode component, the anode component is arranged on one side of the nickel plate, the cathode component is arranged on the other side of the nickel plate, the cathode component comprises a first support middle pipe, a first stretching net, a first elastic buffer net and a first electrode net, the first support middle pipe is arranged on the side surface of the nickel plate, the first stretching net is fixedly connected with the first support middle pipe, the first elastic buffer net is connected with the first stretching net, and the first electrode net is connected with the first elastic buffer net; the anode component comprises a second support middle pipe and a second stretching net, the second support middle pipe is arranged on the other side surface of the nickel plate, and the second stretching net is connected with the second support middle pipe; a first diaphragm is arranged on one side of the cathode component of the electrolysis mechanism; through the mode, the invention can reduce the distance between the electrode nets and reduce the consumption of water electrolysis.
Description
Technical Field
The invention relates to the field of electrolytic hydrogen production, in particular to a low-energy alkaline water electrolysis hydrogen production device and an installation method.
Background
The general water electrolysis hydrogen production equipment is of a cylindrical structure, hydrogen is produced by forced circulation in the equipment, the distance between two electrode nets in the equipment is large, the occupied space and the material cost of the electrolytic tank are increased if a plurality of electrolytic cells are assembled, and meanwhile, the resistance of the electrolyte in the equipment can cause large energy consumption.
Disclosure of Invention
The invention provides a low-energy alkaline water electrolysis hydrogen production device, which can reduce the distance between electrode nets and reduce the energy consumption of water electrolysis.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is a low-energy alkaline water electrolysis hydrogen production device, comprising: the electrolytic mechanism comprises a nickel plate, an anode component and a cathode component, wherein the anode component is arranged on one side of the nickel plate, the cathode component is arranged on the other side of the nickel plate,
the cathode assembly comprises a first support middle pipe, a first stretching net, a first elastic buffer net and a first electrode net, wherein the first support middle pipe is arranged on the side surface of the nickel plate, the first stretching net is fixedly connected with the first support middle pipe, the first elastic buffer net is connected with the first stretching net, and the first electrode net is connected with the first elastic buffer net;
the anode component comprises a second support middle pipe and a second stretching net, the second support middle pipe is arranged on the other side surface of the nickel plate, and the second stretching net is connected with the second support middle pipe;
one side of the cathode assembly of the electrolysis mechanism is provided with a first diaphragm.
Preferably, the cathode assembly further comprises a cathode chamber frame and a first supporting side column for supporting the position of the cathode chamber frame on the nickel plate, the first supporting side column is arranged on the side face of the nickel plate, the cathode chamber frame comprises a first bottom liquid inlet pipe, a first top air outlet pipe and a first side backflow supporting pipe, a first liquid inlet is formed in one end of the first bottom liquid inlet pipe, a first liquid outlet hole and a first backflow hole which are communicated with the first liquid inlet are formed in the side wall of the first bottom liquid inlet pipe, a first diversion hole and a first overflow pipe are formed in the first top air outlet pipe, the first side backflow supporting pipe is arranged between the first bottom liquid inlet pipe and the first top air outlet pipe, one end of the first side backflow supporting pipe is communicated with the first diversion hole, and the other end of the first side backflow supporting pipe is communicated with the first backflow hole.
Preferably, the anode assembly further comprises an anode chamber frame and a second supporting side column for supporting the anode chamber frame at the position on the nickel plate, the second supporting side column is arranged on the other side face of the nickel plate, the anode chamber frame further comprises a second bottom liquid inlet pipe, a second top air outlet pipe and a second side backflow supporting pipe, a second liquid inlet is formed in one end of the second bottom liquid inlet pipe, a second liquid outlet hole and a second backflow hole which are communicated with the second liquid inlet are formed in the side wall of the second bottom liquid inlet pipe, a second diversion hole and a second overflow pipe are formed in the second top air outlet pipe, the second side supporting pipe is arranged between the second bottom liquid inlet pipe and the second top air outlet pipe, one end of the second side supporting pipe is communicated with the second diversion hole, and the other two ends of the second side supporting pipe are communicated with the second backflow hole.
Preferably, first sealing gaskets are arranged on two sides of the nickel plate, and the first sealing gaskets are respectively arranged between the cathode chamber frame and the nickel plate and between the anode chamber frame and the nickel plate.
Preferably, the mounting frame is provided with a first electrode assembly connected with the anode assembly of the electrolysis mechanism at one end and a second electrode assembly connected with the cathode assembly of the electrolysis mechanism at one end;
the first electrode assembly comprises a first electrode plate, a third supporting middle pipe, a third stretching net, a third elastic buffer net and a third electrode net, wherein the third supporting middle pipe is connected with the first electrode plate, the third stretching net is connected with the third supporting middle pipe, the third electrode net is connected with the third elastic buffer net, and a second diaphragm is arranged between the third electrode net and the second stretching net;
the second electrode assembly comprises a second electrode plate, a fourth supporting middle tube and a fourth stretching net, the fourth supporting middle tube is connected with the second electrode plate, the fourth stretching net is connected with the fourth supporting middle tube, and the first diaphragm is arranged between the fourth stretching net and the first electrode net.
Preferably, the first electrode assembly further comprises a third chamber frame and a third supporting side column for supporting the third chamber frame at the position of the first electrode plate, the third supporting side column is arranged on the side surface of the first electrode plate, which is close to the electrolysis mechanism, the third chamber frame comprises a third bottom liquid inlet pipe, a third top air outlet pipe and a third side backflow supporting pipe, a third liquid inlet is formed in one end of the third bottom liquid inlet pipe, a third liquid outlet hole and a third backflow hole which are communicated with the third liquid inlet are formed in the side wall of the third bottom liquid inlet pipe, a third diversion hole and a third overflow pipe are formed in the third top air outlet pipe, the third side backflow supporting pipe is arranged between the third bottom liquid inlet pipe and the third top air outlet pipe, one end of the third side backflow supporting pipe is communicated with the third diversion hole, and the other end of the third side backflow supporting pipe is communicated with the third backflow hole.
Preferably, the second electrode assembly further comprises a fourth chamber frame and a fourth supporting side column for supporting the fourth chamber frame at the position of the second electrode plate, the fourth supporting side column is arranged on the side surface of the second electrode plate, which is close to the electrolysis mechanism, the fourth chamber frame comprises a fourth bottom liquid inlet pipe, a fourth top air outlet pipe and a fourth side backflow supporting pipe, a fourth liquid inlet is formed in one end of the fourth bottom liquid inlet pipe, a fourth liquid outlet hole and a fourth backflow hole which are communicated with the fourth liquid inlet are formed in the side wall of the fourth bottom liquid inlet pipe, a fourth diversion hole and a fourth overflow pipe are formed in the fourth top air outlet pipe, the fourth side supporting pipe is arranged between the fourth bottom liquid inlet pipe and the fourth top air outlet pipe, one end of the fourth side supporting pipe is communicated with the fourth diversion hole, and the other end of the fourth side supporting pipe is communicated with the fourth backflow hole.
Preferably, second sealing gaskets are arranged between the third chamber frame and the second diaphragm, between the anode chamber frame and the second diaphragm, between the fourth chamber frame and the third diaphragm, between the cathode chamber frame and the first diaphragm, and between the anode chamber frame of the electrolysis mechanism and the cathode chamber frame of the adjacent electrolysis mechanism.
In a second aspect of the present invention, there is provided a method for installing a low-energy alkaline water electrolysis hydrogen production apparatus, comprising the steps of:
s1, mounting a first electrode plate and a second electrode plate at two ends of a mounting frame;
s2, paving a second diaphragm on one side of a third electrode net on the first electrode plate;
s3, one side surface of the nickel plate is a cathode, the other side surface of the nickel plate is an anode, and a first support side column, a first support middle tube, a second support side column and a second support middle tube are welded on two sides of the nickel plate (101) respectively;
s4, welding the first stretching net to the first support middle pipe, and welding the second stretching net to the second support middle pipe;
s5, welding a first elastic buffer net on the first stretching net;
s6, installing a first electrode network on the first elastic network;
s7, sleeving the first sealing gasket into the first support side column and the second support side column respectively and attaching the first sealing gasket to the nickel plate;
s8, sleeving the cathode chamber frame into the first supporting side column and attaching the cathode chamber frame to the first sealing gasket, sleeving the anode chamber frame into the first supporting side column and attaching the anode chamber frame to the first sealing gasket;
s9, sleeving a second sealing gasket into the second supporting side column and attaching the second sealing gasket to the anode chamber frame, sleeving another second sealing gasket into the first supporting side column and attaching the second sealing gasket to the cathode chamber frame;
s10, paving a first diaphragm on one side of a first electrode net of the cathode assembly;
s11, attaching a second stretching net of an anode assembly of the electrolysis mechanism adjacent to the first diaphragm;
s12, attaching a second stretching net of the anode assembly adjacent to the first electrode plate to a second diaphragm;
s13, attaching a first electrode net of the cathode assembly adjacent to the second electrode plate to the other first diaphragm;
s14, finishing installation.
The beneficial effects of the invention are as follows:
1. after the circuit is completed, electrolyte enters the cathode assembly and the anode assembly, hydrogen is generated at the cathode, oxygen is generated at the anode, when the internal pressure is uneven, the anode side pushes the diaphragm to the cathode side, the diaphragm is broken to mix the hydrogen and the oxygen, so that potential safety hazards are generated, and the first elastic buffer net is arranged on the first stretching net of the cathode, so that the pressure from the anode side can be offset, the buffer effect is realized, and the safety of the system is improved;
2. under the action of the first elastic buffer net, the first electrode net of the cathode and the second stretching net of the anode can be in direct contact with the first diaphragm, so that the distance between the electrode nets is greatly reduced;
3. through installing first support well pipe and second support well pipe, can realize the internal circulation of electrolyte, reduce the energy consumption of water electrolysis hydrogen manufacturing, first support well pipe and second support well pipe still play the effect of supporting first tensile net and second tensile net simultaneously.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a mounting frame and an electrolysis mechanism of a low-energy alkaline water electrolysis hydrogen production device;
FIG. 2 is a schematic diagram of the structure of an electrolysis mechanism of a low energy alkaline water electrolysis hydrogen plant according to the present invention;
FIG. 3 is a cross-sectional view of an electrolysis mechanism of a low energy alkaline water electrolysis hydrogen plant of the present invention;
FIG. 4 is an exploded schematic view of an electrolysis mechanism of a low energy alkaline water electrolysis hydrogen plant of the present invention;
FIG. 5 is a schematic diagram of the cathode chamber frame decomposition structure of a low energy alkaline water electrolysis hydrogen plant according to the present invention;
FIG. 6 is a schematic view of another view of cathode chamber frame decomposition of a low energy alkaline water electrolysis hydrogen plant according to the present invention.
The components in the drawings are marked as follows:
1. a cathode assembly; 11. a first support middle tube; 12. a first stretched web; 13. a first elastic buffer web;
14. a first electrode network; 15. a first support leg;
2. a cathode chamber frame; 21. a first bottom inlet pipe; 211. a first liquid inlet; 212. a first liquid outlet hole;
213. a first reflow aperture; 22. a first top outlet duct; 221. a first tap hole; 222. a first overflow pipe; 23. a first side reflow support tube; 24. a first intermediate separator;
3. an anode assembly; 31. a second support middle tube; 32. a second stretched web;
34. a second support leg;
4. an anode chamber frame; 41. a second bottom inlet pipe; 412. a second liquid outlet hole; 42. a second top outlet duct; 43. a second side return support tube; 44. a second intermediate separator;
5. a first electrode assembly; 51. a first electrode plate; 52. a third support middle tube; 53. a third stretched web;
54. a third elastic buffer web; 55. a third electrode network; 56. a third support leg;
61. a third bottom inlet pipe; 611. a third liquid inlet; 612. a third liquid outlet hole; 62. a third top outlet duct; 63. a third side return support tube;
7. a second electrode assembly; 71. a second electrode plate; 72. a fourth support middle tube; 73. a fourth stretched web;
74. a fourth support leg;
812. a fourth liquid outlet hole; 82. a fourth top outlet duct; 83. a fourth side return support tube;
91. a bottom plate; 92. a vertical plate; 93. a hanging rod; 94. a locking bolt; 95. an insulating plate; 96. a backing plate;
201. a first sealing gasket; 202. a second sealing gasket;
302. a second diaphragm;
100. an electrolysis mechanism; 101. nickel plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Physical quantities in the formulas, unless otherwise noted, are understood to be basic quantities of basic units of the international system of units, or derived quantities derived from the basic quantities by mathematical operations such as multiplication, division, differentiation, or integration.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Examples:
referring to fig. 1-4, a low energy alkaline water electrolysis hydrogen plant comprising: a mounting frame and a plurality of electrolysis mechanisms 100 mounted on the mounting frame, wherein the electrolysis mechanisms 100 comprise a nickel plate 101, an anode assembly 3 and a cathode assembly 1, the anode assembly 3 is arranged on one side of the nickel plate 101, and the cathode assembly 1 is arranged on the other side of the nickel plate 101;
the cathode assembly 1 includes a first support middle tube 11, a first tension net 12, a first elastic buffer net 13, and a first electrode net 14, the first support middle tube 11 being welded on a side of the nickel plate 101, the first tension net 12 being welded with the first support middle tube 11, the first elastic buffer net 13 being welded with the first tension net 12, the first electrode net 14 being connected with the first elastic buffer net 13.
Referring to fig. 2 to 4, the anode assembly 3 includes a second support middle tube 31 and a second tension net 32, the second support middle tube 31 being welded on the other side of the nickel plate 101, the second tension net 32 being welded with the second support middle tube 31;
a first diaphragm is attached to one side of the cathode assembly 1 of the electrolysis mechanism 100, and the first diaphragm can be arranged between the anode assembly 3 of the electrolysis mechanism 100 and the cathode assembly 1 of the adjacent electrolysis mechanism 100, so that the hydrogen generated by the cathode assembly 1 and the oxygen generated by the anode assembly 3 are strictly isolated by the first diaphragm, and are prevented from being mixed;
alternatively, the anode assembly 3 may have a second elastic buffer mesh (not shown) welded to the second tensile mesh 32, and a second electrode mesh is mounted to the second elastic buffer mesh, and the second elastic buffer mesh is attached to the first separator.
Referring to fig. 3 to 6, in order to facilitate the electrolyte to enter the cathode assembly 1, the cathode assembly 1 further comprises a cathode chamber frame 2 and a first supporting side column 15 for supporting the cathode chamber frame 2 at the position on the nickel plate 101, wherein the first supporting column can be welded at four corners of the side surface of the nickel plate 101, in order to facilitate the billowing and backflow of the electrolyte in the cathode chamber frame 2, the first supporting side column 15 can be arranged in a trapezoid shape and is hollow at the center, the cathode chamber frame 2 comprises a first bottom liquid inlet pipe 21, a first top air outlet pipe 22 and a first side backflow supporting pipe 23, one end of the first bottom liquid inlet pipe 21 is provided with a first liquid inlet 211, the side wall of the first bottom liquid inlet pipe 21 is provided with a first liquid outlet hole 212 and a first backflow hole 213 which are communicated with the first liquid inlet 211, the first top air outlet pipe 22 is provided with a first diversion hole 221 and a first overflow pipe 222, the first side backflow supporting pipe 23 is arranged between the first bottom liquid inlet pipe 21 and the first top air outlet pipe 22, one end of the first side backflow supporting pipe 23 is communicated with the first bottom air outlet pipe 21, and the other end of the first side backflow supporting pipe 23 is communicated with the first bottom air outlet pipe 21 and the first side of the first supporting pipe 23, and the first side backflow supporting pipe 23 can be hung on the first side of the cathode assembly is a rectangular space, and the first side of the cathode assembly can be formed on the side of the cathode assembly on the side of the cathode assembly is convenient;
electrolyte enters the first bottom liquid inlet pipe 21 from the first liquid inlet 211 and flows into the cathode chamber from the first liquid outlet hole 212, gas is generated under the action of electrolysis, rises and enters the first top air outlet pipe 22 through the first overflow pipe 222 and is discharged and collected, the electrolyte is carried along in the rising process of the gas to be billowed, and the electrolyte enters the inside of the first support side column 15 when being billowed to the upper end of the first support side column 15 and flows out from the lower end of the first support side column 15, so that the electrolyte is more fully circulated; when the gas rises, a small part of electrolyte is carried into the first top gas outlet pipe 22, and the electrolyte entering the first top gas outlet pipe 22 flows into the first side backflow supporting pipe 23 through the first diversion hole 221 and returns into the first bottom liquid inlet pipe 21;
in order to allow less electrolyte to be carried into the first top outlet pipe 22, the first overflow pipe 222 extends upwardly a distance within the first top outlet pipe 22, i.e. the first overflow pipe 222 has a height within the first top outlet pipe 22, thereby reducing the influx of electrolyte into the first top outlet pipe 22.
Referring to fig. 3-6, in order to facilitate the electrolyte to enter the anode assembly 3, the anode assembly 3 further comprises an anode chamber frame 4 and a second supporting side column 34 for supporting the anode chamber frame 4 at the position on the nickel plate 101, the second supporting column can be welded at four corners of the other side surface of the nickel plate 101, in order to facilitate the billowing and backflow of the electrolyte in the anode chamber frame 4, the first supporting side column 15 can be arranged in a trapezoid shape and is hollow in center, the anode chamber frame 4 further comprises a second bottom liquid inlet pipe 41, a second top air outlet pipe 42 and a second side backflow supporting pipe 43, one end of the second bottom liquid inlet pipe 41 is provided with a second liquid inlet, the side wall of the second bottom liquid inlet pipe 41 is provided with a second liquid outlet hole 412 and a second backflow hole communicated with the second liquid inlet, the second top air outlet pipe 42 is provided with a second backflow hole and a second overflow pipe, the second side backflow supporting pipe 43 is arranged between the second bottom liquid inlet pipe 41 and the second top air outlet pipe 42, one end of the second side backflow supporting pipe 43 is communicated with the second backflow hole, and the other end of the second side backflow supporting pipe is communicated with the second backflow hole, and the second side part is capable of hanging the second side part of the anode assembly 43 and the second side part is capable of forming a rectangular backflow space on the second side part 43;
electrolyte enters the second bottom liquid inlet pipe 41 from the second liquid inlet and flows into the cathode chamber from the second liquid outlet hole 412, gas is generated under the action of electrolysis, rises and enters the second top air outlet pipe 42 through the second overflow pipe to be discharged and collected, electrolyte is carried along in the rising process of the gas to be billowed, and the electrolyte enters the second support side column 34 when being billowed to the upper end of the first support side column 15 and flows out from the lower end of the second support side column 34, so that the electrolyte is more fully circulated; and when the gas rises, a small part of electrolyte is carried into the second top gas outlet pipe 42, and the electrolyte entering the second top gas outlet pipe 42 flows into the second side backflow supporting pipe 43 through the second diversion hole and returns into the second bottom liquid inlet pipe 41;
in order to allow less electrolyte to be carried into the second top outlet duct 42, the second overflow duct extends upwardly a distance within the first top outlet duct 22, i.e. the second overflow duct has a height within the second top outlet duct 42, thereby reducing electrolyte flooding into the second top outlet duct 42; the structure and function of the anode chamber 3 frame and the cathode chamber frame 2 are the same, reference is made to the structure of the cathode chamber frame, and the drawings are not repeated.
Referring to fig. 3 and 4, in order to further promote the natural circulation of the electrolyte in the cathode chamber and the anode chamber, a first intermediate separator 24 and a second intermediate separator 44 are vertically welded between the sidewalls of the plurality of first support center pipes 11 and the second support center pipes 31, a gap is left between the upper end of the first intermediate separator 24 and the first top outlet pipe 22, and a gap is left between the lower end and the first bottom inlet pipe 21; a gap is reserved between the upper end of the second middle partition plate 44 and the second top air outlet pipe 42, and a gap is reserved between the lower end of the second middle partition plate and the second bottom liquid inlet pipe 41.
Referring to fig. 2 to 4, in order to maintain tightness between the cathode chamber and the anode chamber and the nickel plate 101, first sealing gaskets 201 are provided on both sides of the nickel plate 101, the first sealing gaskets 201 are respectively attached to the sides of the cathode chamber frame 2 and the nickel plate 101, which are close to each other, and the sides of the anode chamber frame 4 and the nickel plate 101, which are close to each other, and simultaneously, the first bottom liquid inlet pipe 21, the first top gas outlet pipe 22, the first side backflow supporting pipe 23, the second bottom liquid inlet pipe 41, the second top gas outlet pipe 42, and the second side backflow supporting pipe 43 are made into square pipes, which also facilitate sealing attachment.
Referring to fig. 1 to 6, the mounting frame is hung with a first electrode assembly 5 connected with the anode assembly 3 of the electrolysis mechanism 100 at one end and a second electrode assembly 7 connected with the cathode assembly 1 of the electrolysis mechanism 100 at the other end, and it is additionally explained that the device can adapt to the number of the electrolysis mechanisms 100 according to the actual gas production requirement, so that the device can be composed of a plurality of electrolysis mechanisms 100;
the first electrode assembly 5 includes a first electrode plate 51, a third support middle tube 52, a third tension net 53, a third elastic buffer net 54, and a third electrode net 55, the third support middle tube 52 is welded with the first electrode plate 51, the third tension net 53 is welded with the third support middle tube 52, the third electrode net 55 is connected with the third elastic buffer net 54, a second separator 302 is disposed between the third electrode net 55 and the second tension net 32 of the anode assembly 3, and it is additionally stated that the first electrode assembly 5 herein corresponds to a cathode chamber and thus is engaged with the anode assembly 3, thereby realizing the operation of the electrolysis mechanism 100 at one end of the device;
the second electrode assembly 7 includes a second electrode plate 71, a fourth support middle tube 72, and a fourth tension net 73, the fourth support middle tube 72 being welded to the second electrode plate 71, the fourth tension net 73 being welded to the fourth support middle tube 72, another first separator on one side of the cathode chamber being disposed between the fourth tension net 73 and the first electrode net 14, and it is additionally stated that the second electrode assembly 7 herein corresponds to the anode chamber and thus is in contact with the cathode assembly 1, thereby achieving the operation of the electrolysis mechanism 100 at the other end of the apparatus.
Referring to fig. 2 and 3, the first electrode assembly 5 further includes a third chamber frame and a third support leg 56 for supporting the third chamber frame at a position on the first electrode plate 51, the third support leg 56 is disposed on a side surface of the first electrode plate 51 near the electrolysis mechanism 100, the third chamber frame includes a third bottom liquid inlet pipe 61, a third top gas outlet pipe 62 and a third side backflow support pipe 63, one end of the third bottom liquid inlet pipe 61 is provided with a third liquid inlet 611, a side wall of the third bottom liquid inlet pipe 61 is provided with a third liquid outlet hole 612 and a third backflow hole communicated with the third liquid inlet 611, the third top gas outlet pipe 62 is provided with a third diversion hole and a third overflow pipe, the third side backflow support pipe 63 is disposed between the third bottom liquid inlet pipe 61 and the third top gas outlet pipe 62, one end of the third side backflow support pipe 63 is communicated with the third diversion hole, and the other end is communicated with the third backflow hole.
Referring to fig. 2 and 3, the second electrode assembly 7 further includes a fourth chamber frame and a fourth support leg 74 for supporting the fourth chamber frame at a position on the second electrode plate 71, the fourth support leg 74 being disposed at a side of the second electrode plate 71 near the electrolysis mechanism 100, the fourth chamber frame including a fourth bottom liquid inlet pipe, a fourth top gas outlet pipe 82 and a fourth side backflow support pipe 83, one end of the fourth bottom liquid inlet pipe being provided with a fourth liquid inlet, a fourth liquid outlet hole 812 and a fourth backflow hole being provided on a side wall of the fourth bottom liquid inlet pipe in communication with the fourth liquid inlet, the fourth top gas outlet pipe 82 being provided with a fourth diversion hole and a fourth overflow pipe, the fourth side support pipe being disposed between the fourth bottom liquid inlet pipe and the fourth top gas outlet pipe 82, one end of the fourth side support pipe being in communication with the fourth diversion hole, and the other end being in communication with the fourth backflow hole;
the third chamber frame, the third support side column 56, the fourth chamber frame, and the fourth support side column 74 have the same functions and structures as the cathode chamber frame 2, the first support side column 15, the anode chamber frame 4, and the fourth support side column 74, and are for the purpose of electrolyte inlet, circulation reflux, and gas discharge, and the description of the text and the drawings is omitted.
Referring to fig. 2 and 3, in order to better seal the cathode chamber and the anode chamber and the end portion of the electrolytic mechanism 100 from each other, the first electrode assembly 5 and the second electrode assembly 7, the second sealing gasket 202 is bonded between the third chamber frame and the second separator 302, between the anode chamber frame 4 and the second separator 302, between the fourth chamber frame and the first separator, between the cathode chamber frame 2 and the first separator, and between the anode chamber frame 4 of the electrolytic mechanism 100 and the cathode chamber frame 2 of the adjacent electrolytic mechanism 100.
Referring to fig. 1 to 3, the mounting frame includes a bottom plate 91 and vertical plates 92 bolted to both sides of the bottom plate 91, two hanging rods 93 are mounted on the vertical plates 92 on both sides, the hanging rods 93 are provided with insulating sleeves, and screw holes are formed in the vertical plates 92 on one side, so that locking bolts 94 are screwed, and the second electrode plates 71 are supported by rotating the locking bolts 94, so that all the electrolytic mechanisms 100 are tightly pressed against each other.
Referring to fig. 1 to 3, in order to facilitate hanging the electrolysis mechanism 100 on the hanger bar 93, two hangers are integrally formed on the nickel plate 101, thereby hanging the nickel plate 101 on the hanger bar 93.
Referring to fig. 1 to 3, in order to improve safety, an insulating plate 95 is provided at one side of each of the first electrode plate 51 and the second electrode plate 71, the insulating plate 95 is hung on the hanger 93, and in order to prevent the locking bolt 94 from damaging the insulating plate 95 when the insulating plate 95 is abutted, a backing plate 96 is provided at one side of the insulating plate 95, and the backing plate 96 is hung on the hanger 93.
The invention also discloses an installation method of the low-energy alkaline water electrolysis hydrogen production device, which comprises the following installation steps:
s1, mounting a first electrode plate 51 and a second electrode plate 71 at two ends of a mounting frame;
s2, paving a second diaphragm 302 on one side of the third electrode net 55 on the first electrode plate 51;
s3, one side surface of the nickel plate 101 is used as a cathode, the other side surface is used as an anode, and a first support side column 15, a first support middle tube 11, a second support side column 34 and a second support middle tube 31 are respectively welded on two sides of the nickel plate 101;
s4, welding the first stretching net 12 to the first middle support pipe 11, and welding the second stretching net 32 to the second middle support pipe 31;
s5, welding a first elastic buffer net 13 on the first stretching net 12;
s6, installing a first electrode network 14 on the first elastic network;
s7, sleeving the first sealing gasket 201 into the first supporting side column 15 and the second supporting side column 34 respectively and attaching the first sealing gasket to the nickel plate 101;
s8, sleeving the cathode chamber frame 2 into the first supporting side column 15 and attaching the cathode chamber frame to the first sealing gasket 201, sleeving the anode chamber frame 4 into the first supporting side column 15 and attaching the anode chamber frame to the first sealing gasket 201;
s9, sleeving a second sealing gasket 202 into the second supporting side column 34 and attaching the second sealing gasket to the anode chamber frame 4, and sleeving another second sealing gasket 202 into the first supporting side column 15 and attaching the second sealing gasket to the cathode chamber frame 2;
s10, paving a first diaphragm on one side of a first electrode net 14 of the cathode assembly 1;
s11, attaching the second stretching net 32 of the anode assembly 3 of the electrolysis mechanism 100 adjacent to the first diaphragm;
s12, the second stretched mesh 32 of the anode assembly 3 adjacent to the first electrode plate 51 is attached to the second separator 302;
s13, attaching the first electrode net 14 of the cathode assembly 1 adjacent to the second electrode plate 71 to the other first diaphragm;
s14, finishing installation.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (9)
1. A low energy alkaline water electrolysis hydrogen production device, comprising: the electrolytic mechanism (100) comprises a nickel plate (101), an anode component (3) and a cathode component (1), wherein the anode component (3) is arranged on one side of the nickel plate (101), the cathode component (1) is arranged on the other side of the nickel plate (101),
the cathode assembly (1) comprises a first support middle tube (11), a first stretching net (12), a first elastic buffer net (13) and a first electrode net (14), wherein the first support middle tube (11) is arranged on the side surface of the nickel plate (101), the first stretching net (12) is fixedly connected with the first support middle tube (11), the first elastic buffer net (13) is connected with the first stretching net (12), and the first electrode net (14) is connected with the first elastic buffer net (13);
the anode assembly (3) comprises a second support middle pipe (31) and a second stretching net (32), wherein the second support middle pipe (31) is arranged on the other side surface of the nickel plate (101), and the second stretching net (32) is connected with the second support middle pipe (31);
a first diaphragm is arranged on one side of a cathode assembly (1) of the electrolysis mechanism (100).
2. The low energy alkaline hydrolysis hydrogen production device according to claim 1, wherein: the cathode assembly (1) further comprises a cathode chamber frame (2) and a first supporting side column (15) for supporting the cathode chamber frame (2) at the position on the nickel plate (101), the first supporting side column (15) is arranged on the side surface of the nickel plate (101), the cathode chamber frame (2) comprises a first bottom liquid inlet pipe (21), a first top air outlet pipe (22) and a first side backflow supporting pipe (23), a first liquid inlet (211) is formed in one end of the first bottom liquid inlet pipe (21), a first liquid outlet hole (212) and a first backflow hole (213) which are communicated with the first liquid inlet (211) are formed in the side wall of the first bottom liquid inlet pipe (21), a first branch flow hole (221) and a first overflow pipe (222) are arranged on the first top air outlet pipe (22), the first side backflow supporting pipe (23) is arranged between the first bottom liquid inlet pipe (21) and the first top air outlet pipe (22), and one end of the first side backflow supporting pipe (23) is communicated with the first backflow hole (213).
3. The low energy alkaline hydrolysis hydrogen production device according to claim 2, wherein: the anode assembly (3) further comprises an anode chamber frame (4) and a second supporting side column (34) for supporting the anode chamber frame (4) at the position on the nickel plate (101), the second supporting side column (34) is arranged on the other side face of the nickel plate (101), the anode chamber frame (4) further comprises a second bottom liquid inlet pipe (41), a second top air outlet pipe (42) and a second side backflow supporting pipe (43), a second liquid inlet is formed in one end of the second bottom liquid inlet pipe (41), a second liquid outlet hole (412) and a second backflow hole which are communicated with the second liquid inlet are formed in the side wall of the second bottom liquid inlet pipe (41), a second backflow hole and a second overflow pipe are formed in the second top air outlet pipe (42), the second side backflow supporting pipe (43) is arranged between the second bottom liquid inlet pipe (41) and the second top air outlet pipe (42), one end of the second side backflow supporting pipe (43) is communicated with the second backflow hole, and the other end of the second side backflow supporting pipe is communicated with the second backflow hole.
4. A low energy alkaline hydrolysis hydrogen plant according to claim 3, characterized in that: the two sides of the nickel plate (101) are respectively provided with a first sealing gasket (201), and the first sealing gaskets (201) are respectively arranged between the cathode chamber frame (2) and the nickel plate (101) and between the anode chamber frame (4) and the nickel plate (101).
5. The low energy alkaline hydrolysis hydrogen production device according to claim 1, wherein: the mounting frame is provided with a first electrode assembly (5) connected with an anode assembly (3) of the electrolysis mechanism (100) at one end and a second electrode assembly (7) connected with a cathode assembly (1) of the electrolysis mechanism (100) at one end;
the first electrode assembly (5) comprises a first electrode plate (51), a third supporting middle tube (52), a third stretching net (53), a third elastic buffer net (54) and a third electrode net (55), wherein the third supporting middle tube (52) is connected with the first electrode plate (51), the third stretching net (53) is connected with the third supporting middle tube (52), the third electrode net (55) is connected with the third elastic buffer net (54), and a second diaphragm (302) is arranged between the third electrode net (55) and the second stretching net (32);
the second electrode assembly (7) comprises a second electrode plate (71), a fourth supporting middle tube (72) and a fourth stretching net (73), wherein the fourth supporting middle tube (72) is connected with the second electrode plate (71), the fourth stretching net (73) is connected with the fourth supporting middle tube (72), and the first diaphragm is arranged between the fourth stretching net (73) and the first electrode net (14).
6. The low energy alkaline hydrolysis hydrogen production device according to claim 5, wherein: the first electrode assembly (5) further comprises a third chamber frame and a third supporting side column (56) for supporting the third chamber frame at the position of the first electrode plate (51), the third supporting side column (56) is arranged on the side surface of the first electrode plate (51) close to the electrolysis mechanism (100), the third chamber frame comprises a third bottom liquid inlet pipe (61), a third top air outlet pipe (62) and a third side backflow supporting pipe (63), a third liquid inlet (611) is formed in one end of the third bottom liquid inlet pipe (61), a third liquid outlet hole (612) and a third backflow hole which are communicated with the third liquid inlet (611) are formed in the side wall of the third bottom liquid inlet pipe (61), a third diversion hole and a third backflow hole are formed in the third top air outlet pipe (62), the third side backflow supporting pipe (63) is arranged between the third bottom liquid inlet pipe (61) and the third top air outlet pipe (62), and one end of the third side backflow supporting pipe (63) is communicated with the third diversion hole.
7. The low energy alkaline hydrolysis hydrogen production device according to claim 6, wherein: the second electrode assembly (7) further comprises a fourth chamber frame and a fourth supporting side column (74) for supporting the fourth chamber frame at the position of the second electrode plate (71), the fourth supporting side column (74) is arranged on the side surface of the second electrode plate (71) close to the electrolysis mechanism (100), the fourth chamber frame comprises a fourth bottom liquid inlet pipe, a fourth top air outlet pipe (82) and a fourth side backflow supporting pipe (83), a fourth liquid inlet is formed in one end of the fourth bottom liquid inlet pipe, a fourth liquid outlet hole (812) and a fourth backflow hole which are communicated with the fourth liquid inlet are formed in the side wall of the fourth bottom liquid inlet pipe, a fourth diversion hole and a fourth overflow pipe are formed in the fourth top air outlet pipe (82), the fourth side supporting pipe is arranged between the fourth bottom liquid inlet pipe and the fourth top air outlet pipe (82), one end of the fourth side supporting pipe is communicated with the fourth diversion hole, and the other end of the fourth side supporting pipe is communicated with the fourth backflow hole.
8. The low energy alkaline hydrolysis hydrogen production device according to claim 7, wherein: second sealing gaskets (202) are arranged between the third chamber frame and the second diaphragm (302), between the anode chamber frame (4) and the second diaphragm (302), between the fourth chamber frame and the third diaphragm, between the cathode chamber frame (2) and the first diaphragm, and between the anode chamber frame (4) of the electrolysis mechanism (100) and the cathode chamber frame (2) of the adjacent electrolysis mechanism (100).
9. A method of installing a low energy alkaline aqueous electrolytic hydrogen plant as claimed in any one of claims 1 to 8 comprising the steps of:
s1, mounting a first electrode plate (51) and a second electrode plate (71) at two ends of a mounting frame;
s2, paving a second diaphragm (302) on one side of a third electrode net (55) on the first electrode plate (51);
s3, one side surface of the nickel plate (101) is a cathode, the other side surface is an anode, and a first support side column (15), a first support middle pipe (11), a second support side column (34) and a second support middle pipe (31) are welded on two sides of the nickel plate (101) respectively;
s4, welding the first stretching net (12) to the first support middle pipe (11), and welding the second stretching net (32) to the second support middle pipe (31);
s5, welding a first elastic buffer net (13) on the first stretching net (12);
s6, installing a first electrode net (14) on the first elastic net;
s7, sleeving the first sealing gasket (201) into the first support side column (15) and the second support side column (34) respectively and attaching the first sealing gasket to the nickel plate (101);
s8, sleeving the cathode chamber frame (2) into the first supporting side column (15) and attaching the cathode chamber frame to the first sealing gasket (201), sleeving the anode chamber frame (4) into the first supporting side column (15) and attaching the anode chamber frame to the first sealing gasket (201);
s9, sleeving a second sealing gasket (202) into the second supporting side column (34) and attaching the second sealing gasket to the anode chamber frame (4), sleeving the other second sealing gasket (202) into the first supporting side column (15) and attaching the second sealing gasket to the cathode chamber frame (2);
s10, paving a first diaphragm on one side of a first electrode net (14) of the cathode assembly (1);
s11, attaching a second stretching net (32) of an anode assembly (3) of the electrolysis mechanism (100) adjacent to the first diaphragm;
s12, attaching a second tensile net (32) of the anode assembly (3) adjacent to the first electrode plate (51) to the second diaphragm (302);
s13, attaching a first electrode net (14) of the cathode assembly (1) adjacent to the second electrode plate (71) to the other first diaphragm;
s14, finishing installation.
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