CN114990596A - Water electrolysis hydrogen production device - Google Patents
Water electrolysis hydrogen production device Download PDFInfo
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- CN114990596A CN114990596A CN202210693046.0A CN202210693046A CN114990596A CN 114990596 A CN114990596 A CN 114990596A CN 202210693046 A CN202210693046 A CN 202210693046A CN 114990596 A CN114990596 A CN 114990596A
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- cavity
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- inner cavity
- electrode
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000001257 hydrogen Substances 0.000 title claims abstract description 50
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 50
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000005868 electrolysis reaction Methods 0.000 title claims description 22
- 239000003513 alkali Substances 0.000 claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims 4
- 230000007246 mechanism Effects 0.000 description 32
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 10
- 238000003860 storage Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000000875 corresponding effect Effects 0.000 description 6
- -1 sodium sulfate Chemical class 0.000 description 5
- 230000007248 cellular mechanism Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Images
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
- C25B9/17—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
-
- 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
- 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
-
- 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 belongs to the technical field of new energy, and discloses a hydrogen production device by electrolyzing water, which is provided with a plurality of sealed cavities, wherein alkali liquor in the sealed cavities is decomposed to produce hydrogen and oxygen after being electrified; the sealed cavity is divided into an inner cavity and an outer cavity which are mutually nested by the diaphragm, electrodes are respectively arranged in the inner cavity and the outer cavity, and the electrodes are connected with an external circuit to electrolyze the alkali liquor; the sealed cavity comprises a plurality of sub parts connected through a switching structure, pipelines communicated with the inner cavity and the outer cavity are arranged on any sub part of the end part, and liquid flow guide of the inner cavity and the outer cavity is carried out through a circulating pump arranged on the pipelines.
Description
Technical Field
The invention belongs to the technical field of new energy, and particularly relates to a hydrogen production device by electrolyzing water.
Background
The electrolyzed water generally refers to a product generated after electrolyzing water containing salt (such as sodium sulfate, but not common salt, and chlorine gas is generated). The electrolyzed water is neutral, and other ions can be added, or the electrolyzed water can be separated by a semipermeable membrane to generate water with two properties. One of them is alkaline ionized water, and the other is acidic ionized water. Electrolyzed water containing sodium chloride as an electrolyte in water contains sodium hydroxide, hypochlorous acid and sodium hypochlorite after electrolysis (if pure water is electrolyzed, only hydroxide ions, hydrogen gas, oxygen gas and hydrogen ions are generated).
Hydrogen energy has received wide attention worldwide as a highly efficient, clean and ideal secondary energy source. Large scale, inexpensive production of H 2 Is one of the important links for developing and utilizing hydrogen energy. Method for preparing H by utilizing green electricity and adopting water electrolysis technology 2 Can realize zero carbon in the whole process, accords with the national development strategy, has relatively simple operation and relatively mature technology, and the prepared H 2 High purity for large-scale production of H 2 Is an important means. Compared with PEM water electrolysis hydrogen production, the alkaline water electrolysis hydrogen production technology is more pure and mature. Therefore, domestic alkaline water electrolysis dominates the industry. In alkaline cells, the cathode produces H 2 The anode produces O 2 H will occur if they are not separated 2 、O 2 Mixing, thus not only production H cannot be achieved 2 And also toCan bring about potential safety hazard, and the H needs to be separated by a diaphragm 2 、O 2 Are strictly isolated.
Most of the existing water electrolysis hydrogen production equipment are containers, namely electrolysis baths, wherein two electrodes are arranged in the containers, and the electrodes are arranged in different cavities to electrify and produce hydrogen. However, such cells are typically custom built and once installed can only be replaced in their entirety. There is a need for a modular cell structure that can reduce manufacturing costs and accommodate a variety of application scenarios.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a hydrogen production device by electrolyzing water, which is provided with a plurality of subsections, can be configured according to actual requirements, and can be adjusted in volume after being arranged according to requirements so as to meet the problem of increased air supply requirement in a single area.
The technical scheme adopted by the invention is as follows:
in a first aspect, the invention provides a hydrogen production device by water electrolysis, which is provided with a plurality of sealed cavities, wherein after being electrified, alkali liquor in the sealed cavities is decomposed to produce hydrogen and oxygen;
the sealed cavity is divided into an inner cavity and an outer cavity which are mutually nested by the diaphragm, electrodes are respectively arranged in the inner cavity and the outer cavity, and the electrodes are connected with an external circuit to electrolyze the alkali liquor;
the sealed cavity comprises a plurality of sub parts connected through a switching structure, pipelines which are communicated with the inner cavity and the outer cavity simultaneously are arranged on any sub part of the end part, and liquid flow guide of the inner cavity and the outer cavity is carried out through a circulating pump arranged on the pipelines.
In combination with the first aspect, the present disclosure provides the first embodiment of the first aspect, wherein the sealed chamber includes a housing, the housing includes a top cover, a bottom cover, and an outer cover, and the outer cover is disposed between the top cover and the bottom cover;
the outer cover is provided with a plurality of outer covers, and adjacent outer covers are connected in a sealing mode through the adapter discs.
In combination with the first embodiment of the first aspect, the present invention provides a second embodiment of the first aspect, wherein the diaphragm is a continuous sealing structure, and two openings of the diaphragm are respectively connected with the top cover and the bottom cover in a sealing manner.
With reference to the first embodiment of the first aspect, the present invention provides a third embodiment of the first aspect, wherein a separation layer is disposed in the outer cover, the separation layer has a passage communicating the outer cavity and the inner cavity, and a membrane is disposed on the passage for covering.
With reference to the third embodiment of the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the diaphragm has a plurality of parts, and the inner ring and the outer ring of the adapter disc are connected, the diaphragm parts on the two sides of the inner ring are connected to keep the diaphragm continuous, and the outer ring is connected to the outer cover to keep continuous sealing.
With reference to the fourth embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the top cover and the bottom cover are connected by a plurality of fixing rods, and the plurality of outer covers are tightened by the fixing rods to form a cylindrical structure.
With reference to the third, fourth or fifth implementation manner of the first aspect, the invention provides a sixth implementation manner of the first aspect, wherein the sealed cavity is of a vertical structure, and an outer gas collecting pipe communicated with the outer cavity and an inner gas collecting pipe communicated with the inner cavity are arranged on the top cover;
an outer electrode contact connected with the outer cavity electrode and an inner electrode contact connected with the inner cavity electrode are arranged on the bottom cover.
With reference to the sixth implementation manner of the first aspect, the present invention provides a seventh implementation manner of the first aspect, wherein a slot is formed in the separation layer along an axial direction of the separation layer, the electrode includes an insert electrode, and the insert electrode is inserted into the slot to be fixed.
In combination with the seventh embodiment of the first aspect, the present invention provides an eighth embodiment of the first aspect, wherein the patch electrode is disposed in the inner chamber and/or the outer chamber.
In combination with the seventh embodiment of the first aspect, the present invention provides a ninth embodiment of the first aspect, wherein the electrode plate comprises a cutting strip matching with the slot, and a multi-sheet contact zone arranged on the outer surface of the cutting strip and protruding outwards to form an enlarged contact area with the alkali liquor.
The invention has the beneficial effects that:
(1) the water electrolysis hydrogen production equipment comprises a plurality of subsections, and the corresponding number of the subsections can be set according to actual requirements for installation, so that the volume can be adjusted before or after the arrangement, the maximum gas production can be adjusted, the flexibility is higher, and the water electrolysis hydrogen production equipment is suitable for some temporary building equipment, especially a hydrogen production power generation system needing temporary setting;
(2) in the hydrogen production equipment by electrolyzing water, the packaging structure and the electrode structure which can be quickly disassembled are arranged, so that the polarities in the inner cavity and the outer cavity can be adjusted according to requirements, and the equipment has higher flexibility and is convenient to maintain and replace.
Drawings
FIG. 1 is a front view of a particular application in an embodiment of an electrolytic cell of the invention;
FIG. 2 is a top view of a particular application in an embodiment of the electrolytic cell of the present invention;
FIG. 3 is a first isometric view of a particular application in an embodiment of an electrolytic cell of the present invention;
FIG. 4 is a second isometric view of a specific application of an embodiment of the cell of the invention;
FIG. 5 is a side view of a particular application in an embodiment of an electrolytic cell of the present invention;
FIG. 6 is a schematic cross-sectional view of the present invention taken along section line A-A of FIG. 5;
FIG. 7 is a plan view, partly in structure and in a disassembled state, of a specific application in an example of an electrolytic cell according to the invention;
figure 8 is an isometric view, partially disassembled, of a specific application in an example of an electrolytic cell of the invention.
In the figure: 1-outer cover, 2-fixed rod, 3-top cover, 4-bottom cover, 5-base, 6-outer gas collecting tube, 7-inner gas collecting tube, 8-inner electrode contact, 9-outer electrode contact, 10-adapter plate, 11-separation layer, 12-outer cavity, 13-inner cavity, 14-insertion plate electrode, and 15-embedded diaphragm.
Detailed Description
The invention is further explained by the following embodiments in combination with the drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example 1:
this embodiment discloses a hydrogen production device by water electrolysis, as shown in fig. 1, which mainly comprises a container for electrolysis by an external power supply, and is used for storing alkaline solution and collecting oxygen and hydrogen generated on a positive cathode by an internal electrode.
The hydrogen production equipment in the embodiment is of a vertical cylindrical multilayer structure and comprises a top cover, a bottom cover and a base, wherein the base has a certain height, the bottom cover can be lifted to enable the lower part of the bottom cover to have a ground clearance, partial structure on the bottom cover is prevented from being directly contacted with a fixed surface, and an external pipeline can be ensured to enter from the ground clearance.
The top cover and the bottom cover are supported and fixed through three fixing rods, a certain space is formed between the top cover and the bottom cover, and in the space, a sealed cavity is formed by surrounding at least two communicated outer covers with the top cover and the bottom cover.
The sealed cavity is divided into an inner cylindrical cavity and an outer cylindrical cavity by a diaphragm, namely an inner cavity and an outer cavity. The inner cavity and the outer cavity have the same volume by adjusting the radius of the diaphragm, and a certain amount of alkali liquor, mainly sodium hydroxide solution, is injected into the two cavities to ensure that the solution has a certain amount of hydroxide ions.
The inner cavity and the outer cavity are not limited to specific polarities and are arranged according to requirements, in the embodiment, an anode electrode is arranged in the outer cavity, and a cathode electrode is arranged in the inner cavity. The diaphragm in this embodiment may be made of various materials and is characterized by a small hole with a certain gap to allow free exchange of ions in the liquid on both sides.
The cathode utilizes hydrogen ions in liquid to generate hydrogen near the electrode after giving electrons, and the hydrogen can quickly rise to the top cover due to the vertical structure, and is discharged by the outer gas collecting pipe arranged at the top cover. Meanwhile, electrons of hydroxide can be obtained in the anode of the inner cavity, so that oxygen is generated at the anode and is exhausted through the inner gas collecting pipe on the top cover.
In this embodiment, this electrolytic water hydrogen plant mainly uses in some emergency power generation accumulate systems, can build according to the actual demand, then adopts the modular structure design, when obtaining the on-the-spot hydrogen demand of producing, directly splices and forms the electrolytic water device that corresponds the volume to provide hydrogen and oxygen supply in a certain period.
The core point in this embodiment is that the barrel-shaped fuselage structure is constructed from a multi-segment outer shell. The outer cover is made of a material with better corrosion resistance, and can be made of glass fiber reinforced plastics or stainless steel materials.
The outer cover in this embodiment is a circular tube with a uniform cross section, and the two side ports have the same size and the same wall thickness. The inside of the cover has an annular groove whose width is slightly greater than the wall thickness of the housing. In order to obtain a better sealing effect, the rubber layer is arranged in the caulking groove, the width of the caulking groove provided with the rubber layer is smaller than the wall thickness of the outer cover, and a certain external force is needed to press the port on one side of the outer cover into the caulking groove, so that the fixing effect is achieved.
The bottom cover has the same size as the top cover, and the inner side surface of the bottom cover is also provided with a caulking groove with the same size for connecting the port of the outer cover. If only one outer cover is provided, the top cover and the bottom cover are directly fastened and fixed at the port of the outer cover to form a sealing structure.
In the embodiment, a double-layer structure design is adopted, two outer covers are provided, and a switching disk is arranged between the adjacent outer covers for connection. The adapter plate comprises two modes, namely an independent structure and a symmetrical double-structure sealing splicing mode. Wherein the integrated structure is provided with two oppositely arranged annular caulking grooves for fixedly embedding the outer cover port at one corresponding side.
And the symmetrical double structure is similar to a flange, and the mode can provide better fixed connection effect for the device with more spliced outer covers. When the double-layer spliced adapter disc is adopted, an annular flange is arranged on the surface of the outer ring of one port of the outer cover. And the adapter disc on one side is provided with an annular sunken groove which is matched with the annular flange to cover the annular flange and press and seal the annular flange. When the adapter plate is installed, the adapter plate needs to be sleeved in from the port without the annular flange of the outer cover on one side, and because the inner diameter of the adapter plate is just equal to or slightly larger than the outer diameter of the outer cover, the sleeved adapter plate moves along the axial direction of the outer cover, and the outer annular flange is covered when the adapter plate moves to the fracture on the other side, so that the adapter plate sinks into the annular sinking groove.
The edge of the outer ring of the adapter plate is provided with a plurality of through holes for the fixing rod to pass through, and the fixing rod in the embodiment is in a threaded rod structure, as shown in fig. 2-4. It can be seen that the fixed rod passes through top cap, two switching dishes and bottom in proper order to all be equipped with the nut on corresponding structure and lock. Because two switching dish buckles and supports inboard dustcoat port to compress tightly it through two nuts of both sides, the rubber ring pressurized deformation that is equipped with in the gap department of switching dish this moment fills its gap completely, thereby reaches better sealed effect.
Meanwhile, as the nuts are respectively arranged on the top cover and the bottom cover, the outer cover can be tightly pressed through the two nuts relative to the locking switching disc at the same side, so that the fixing effect is realized.
In this embodiment, the diaphragm is made of asbestos or a polymer material, and a nylon or stainless steel pull rope for increasing tensile strength is provided inside or outside the diaphragm. The material is soft, so that the structure is continuous, the length of the outer cover is set as required, the outer cover is cut into corresponding length to form a cylindrical structure, and ports on two sides are pressed on the inner side surfaces of the top cover and the bottom cover and are sealed.
The top cover is provided with an outer gas collecting pipe communicated with the outer cavity and an inner gas collecting pipe communicated with the inner cavity; an outer electrode contact connected with the outer cavity electrode and an inner electrode contact connected with the inner cavity electrode are arranged on the bottom cover.
Meanwhile, in order to realize the circulation exchange of the internal liquid and the external liquid and supplement the consumed water source, the equipment also comprises a circulation pipeline system, and the internal cavity and the external cavity are communicated on the bottom cover through the circulation pipeline system. Comprises a single pipeline, and an accommodating cavity which has a certain volume and can be used for a certain amount of lye to stay in the accommodating cavity is also arranged on the pipeline.
Simultaneously, this circulation pipe-line system still is equipped with a circulating pump, has a feed water inlet on this circulating pump for communicate outside water source and supply water, through control mechanism control, after obtaining inside water level information, realize the water injection control of circulating pump through the threshold value of settlement.
Yet in some embodiments, as shown in fig. 5-8, another internal structural arrangement is provided.
A separation layer is provided in a cylindrical cavity formed in the housing. The separating layer is of a cylindrical structure and is connected to the top cover and the bottom cover respectively, and the middle of the separating layer is connected through the inner ring of the adapter plate. And the outer lane that the adapter plate has is used for connecting two dustcoats, connects through a plurality of connecting rods between the interior outer lane structure for have a plurality of clearances between inner circle and the outer lane, supply the alkali liquor to flow between two dustcoats.
The separating layer is of a hard fixed frame structure, and can also be made of corrosion-resistant high polymer materials or stainless steel materials. The sealed cavity in the outer cover is divided into an inner cavity and an outer cavity by a separation layer. Four slots are arranged on the outer side of the separation layer along the axis at equal central angles, the slots penetrate through the whole separation layer, inserting plate electrodes can be inserted into the slots, and the inserting plate electrodes are inserted into the slots to be fixed.
The inserting plate electrode comprises an inserting strip matched with the slot and a multi-sheet contact area which is arranged on the outer surface of the inserting strip and protrudes outwards to form an enlarged contact area with the alkali liquor. Wherein, one end of the cutting is inserted into the top cover or the bottom cover and is electrically connected with the external electrode contact arranged outside, thereby realizing the conductive effect. Meanwhile, an insulating material is arranged at a proper position on the inserting strip to realize insulating contact. Meanwhile, the multi-sheet contact area is provided with a plurality of sheet structures extending along the axis, so that the contact area with the alkali liquor can be increased, and a better gas production effect is achieved.
Meanwhile, the separation layer in this embodiment is provided with a plurality of hollow areas, and the hollow areas are internally provided with embedded diaphragms. As shown in the figure, the embedded diaphragm has a fixed outer frame in clamping fit with the hollow area, and a diaphragm material or an ion-conducting filling material is arranged in the fixed outer frame. The fixing mode can not only realize corresponding effect by arranging proper ion conducting materials, but also replace different materials according to requirements. Because the device in the embodiment is mainly a temporary gas production device, the device can be disassembled, assembled and replaced within a certain time, if easily damaged materials such as asbestos are adopted, the cost is lower, but the device needs to be replaced and maintained, the embedded diaphragm structure is adopted, the maintenance and replacement can be facilitated, and the cost is reduced.
A columnar electrode is arranged in the separation layer, the length of the electrode is the same as that of the separation layer and the outer cover, and a screw end and a thread groove which are matched with each other are respectively arranged at two end parts of the electrode. As shown in the figure, with the two housings, two electrode rods are also used internally, with the fixation and electrical connection being achieved by a screw-threaded fit.
Example 2:
the embodiment discloses a device of electrolysis water preparation, collection hydrogen, electrolyzes lye through external power supply and acquires hydrogen and collect, includes: the water electrolysis mechanism is used for electrolyzing input alkali liquor to produce gas; the conveying mechanism is used for connecting the water electrolysis mechanism and collecting the produced hydrogen and oxygen; and the pressurizing tank storage mechanism is used for respectively pressurizing and storing the hydrogen and the oxygen which are sent by the conveying mechanism in the gas tank, and is provided with a gas supply mechanism which is communicated with an external pipeline through the gas supply mechanism to carry out constant-pressure gas supply.
The water electrolysis mechanism comprises an electrolytic cell, a pumping device and a control mechanism, the control mechanism supplements alkali liquor according to the water level change in the electrolytic cell, and a heating mechanism is arranged in the pumping device, so that the temperature of the alkali liquor entering the electrolytic cell through the pumping device is not lower than 60 ℃.
Further, the pressurizing tank storage mechanism also comprises a pressurizing mechanism connected with the gas tank, the pressurizing mechanism is provided with at least two pressurizing lines, and oxygen and hydrogen are conveyed to the independent gas tank for storage through different pressurizing lines.
Furthermore, the device is provided with a plurality of electrolytic tanks, and a pre-storage tank is arranged in the conveying mechanism and is used for separately collecting oxygen and hydrogen of the electrolytic tanks; the prestoring tank is internally provided with a barometer, and the barometer is controlled by a set threshold value to be introduced into the corresponding pressurizing tank storage mechanism by the conveying mechanism after the air pressure in the prestoring tank reaches the threshold value.
The hydrogen and oxygen are proportionally delivered into the hydrogen fuel cell mechanism by the pressurizing tank storage mechanism to generate electricity, and pure water generated in the hydrogen fuel cell mechanism is returned to the water electrolysis mechanism to be used for replenishing alkali liquor.
Further, the hydrogen fuel cell mechanism and the water electrolysis mechanism are arranged on the same support, liquid is conveyed on the support through the same pumping mechanism, and the liquid is controlled through the same control mechanism.
Furthermore, the electrolytic water mechanism, the conveying mechanism, the pressurizing tank storage mechanism and the hydrogen fuel cell mechanism are all arranged on the same bracket and are controlled by the same control mechanism; the power supply control module in the control mechanism is connected with an external unstable power supply network, the current of the unstable power supply network is continuously introduced into the water electrolysis mechanism to continuously generate gas, and the gas is pressurized and stored after the pre-storage tank reaches the gas pressure threshold value; when the air quantity in the pressurizing tank storage mechanism reaches a set threshold value, the control mechanism sends out complete power supply information, and the control mechanism sends out continuous power supply time information according to the air storage quantity.
The present invention is not limited to the above-described alternative embodiments, and various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined by the appended claims, which are intended to be interpreted according to the breadth to which the description is entitled.
Claims (10)
1. The water electrolysis hydrogen production device is provided with a plurality of sealed cavities, and after being electrified, alkali liquor in the sealed cavities is decomposed to produce hydrogen and oxygen, and the device is characterized in that: comprises a sealed cavity, wherein the sealed cavity is internally provided with alkali liquor and a diaphragm for conducting ions;
the sealed cavity is divided into an inner cavity and an outer cavity which are mutually nested by the diaphragm, electrodes are respectively arranged in the inner cavity and the outer cavity, and the electrodes are connected with an external circuit to electrolyze the alkali liquor;
the sealed cavity comprises a plurality of sub parts connected through a switching structure, pipelines communicated with the inner cavity and the outer cavity are arranged on any sub part of the end part, and liquid flow guide of the inner cavity and the outer cavity is carried out through a circulating pump arranged on the pipelines.
2. An apparatus for producing hydrogen by electrolyzing water as claimed in claim 1, wherein: the sealed cavity comprises a shell, the shell comprises a top cover (3), a bottom cover (4) and an outer cover (1), and the outer cover (1) is arranged between the top cover (3) and the bottom cover (4);
the outer covers (1) are provided with a plurality of outer covers, and the adjacent outer covers (1) are connected in a sealing mode through the adapter plates (10).
3. An apparatus for producing hydrogen by electrolyzing water as claimed in claim 2, characterized in that: the diaphragm is a continuous sealing structure, and openings at two ends of the diaphragm are respectively connected with the top cover (3) and the bottom cover (4) in a sealing way.
4. An apparatus for producing hydrogen by electrolyzing water as claimed in claim 2, characterized in that: a separation layer (11) is arranged in the outer cover (1), a channel for communicating the outer cavity (12) and the inner cavity (13) is arranged on the separation layer (11), and a diaphragm is arranged on the channel for covering.
5. The apparatus for producing hydrogen by electrolyzing water as claimed in claim 4, wherein: the diaphragm is provided with a plurality of parts, the inner ring and the outer ring of the adapter plate (10) are connected with the diaphragm parts on the two sides through the inner ring to keep the diaphragm continuous, and the outer ring is connected with the outer cover (1) to keep continuous sealing.
6. An apparatus for producing hydrogen by electrolyzing water as claimed in claim 5, wherein: the top cover (3) is connected with the bottom cover (4) through a plurality of fixing rods (2), and a plurality of outer covers (1) are tensioned through the fixing rods (2) to form a cylindrical structure.
7. An apparatus for producing hydrogen by electrolyzing water as claimed in any of claims 4 to 6, wherein: the sealed cavity is of a vertical structure, and an outer gas collecting pipe (6) communicated with the outer cavity (12) and an inner gas collecting pipe (7) communicated with the inner cavity (12) are arranged on the top cover (1);
an outer electrode contact (9) connected with the electrode of the outer cavity (12) and an inner electrode contact (8) connected with the electrode of the inner cavity (13) are arranged on the bottom cover (4).
8. An apparatus for producing hydrogen by electrolyzing water as claimed in claim 7, wherein: be equipped with the slot that sets up along the axis direction on separate layer (11), the electrode includes picture peg electrode (14), picture peg electrode (14) are inserted and are realized fixedly in the slot.
9. An apparatus for producing hydrogen by electrolyzing water as claimed in claim 8, wherein: the insertion plate electrodes (14) are arranged in the inner cavity (13) and/or the outer cavity (12).
10. An apparatus for producing hydrogen by electrolyzing water as claimed in claim 8, wherein: the insertion plate electrodes (14) comprise insertion strips matched with the slots and multi-piece contact areas which are arranged on the outer surfaces of the insertion strips and protrude outwards to form contact areas with the alkali liquor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210693046.0A CN114990596B (en) | 2022-06-17 | 2022-06-17 | Hydrogen production device by water electrolysis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210693046.0A CN114990596B (en) | 2022-06-17 | 2022-06-17 | Hydrogen production device by water electrolysis |
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| CN114990596B CN114990596B (en) | 2023-12-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2711145Y (en) * | 2004-04-08 | 2005-07-20 | 叶清源 | Electrolyzer of water electrolyzing device |
| US20070151865A1 (en) * | 2003-02-21 | 2007-07-05 | Shimko Martin A | Electrolyzer apparatus and method for hydrogen production |
| CN103320810A (en) * | 2013-06-20 | 2013-09-25 | 武汉微氢科技有限公司 | Series-parallel combined high-efficient hydrogen oxygen electrolytic bath |
| CN213012105U (en) * | 2020-03-27 | 2021-04-20 | 井进(上海)实业有限公司 | Efficient and safe preparation tool for electrolyzed water disinfectant |
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2022
- 2022-06-17 CN CN202210693046.0A patent/CN114990596B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070151865A1 (en) * | 2003-02-21 | 2007-07-05 | Shimko Martin A | Electrolyzer apparatus and method for hydrogen production |
| CN2711145Y (en) * | 2004-04-08 | 2005-07-20 | 叶清源 | Electrolyzer of water electrolyzing device |
| CN103320810A (en) * | 2013-06-20 | 2013-09-25 | 武汉微氢科技有限公司 | Series-parallel combined high-efficient hydrogen oxygen electrolytic bath |
| CN213012105U (en) * | 2020-03-27 | 2021-04-20 | 井进(上海)实业有限公司 | Efficient and safe preparation tool for electrolyzed water disinfectant |
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| CN114990596B (en) | 2023-12-29 |
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