CN113930798A - Compact self-elevating diaphragm-free electrolytic cell - Google Patents

Compact self-elevating diaphragm-free electrolytic cell Download PDF

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Publication number
CN113930798A
CN113930798A CN202111265001.5A CN202111265001A CN113930798A CN 113930798 A CN113930798 A CN 113930798A CN 202111265001 A CN202111265001 A CN 202111265001A CN 113930798 A CN113930798 A CN 113930798A
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CN
China
Prior art keywords
intermediate electrode
diaphragm
plate
electrolysis
disposed
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Pending
Application number
CN202111265001.5A
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Chinese (zh)
Inventor
张畅
郭海礁
徐显明
王金意
刘丽萍
王韬
王凡
潘龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Clean Energy Research Institute
Huaneng Group Technology Innovation Center Co Ltd
Sichuan Huaneng Baoxinghe Hydropower Co Ltd
Sichuan Huaneng Kangding Hydropower Co Ltd
Huaneng Mingtai Power Co Ltd
Sichuan Huaneng Dongxiguan Hydropower Co Ltd
Sichuan Huaneng Fujiang Hydropower Co Ltd
Sichuan Huaneng Hydrogen Technology Co Ltd
Sichuan Huaneng Jialingjiang Hydropower Co Ltd
Sichuan Huaneng Taipingyi Hydropower Co Ltd
Original Assignee
Huaneng Clean Energy Research Institute
Huaneng Group Technology Innovation Center Co Ltd
Sichuan Huaneng Baoxinghe Hydropower Co Ltd
Sichuan Huaneng Kangding Hydropower Co Ltd
Huaneng Mingtai Power Co Ltd
Sichuan Huaneng Dongxiguan Hydropower Co Ltd
Sichuan Huaneng Fujiang Hydropower Co Ltd
Sichuan Huaneng Hydrogen Technology Co Ltd
Sichuan Huaneng Jialingjiang Hydropower Co Ltd
Sichuan Huaneng Taipingyi Hydropower Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Huaneng Clean Energy Research Institute, Huaneng Group Technology Innovation Center Co Ltd, Sichuan Huaneng Baoxinghe Hydropower Co Ltd, Sichuan Huaneng Kangding Hydropower Co Ltd, Huaneng Mingtai Power Co Ltd, Sichuan Huaneng Dongxiguan Hydropower Co Ltd, Sichuan Huaneng Fujiang Hydropower Co Ltd, Sichuan Huaneng Hydrogen Technology Co Ltd, Sichuan Huaneng Jialingjiang Hydropower Co Ltd, Sichuan Huaneng Taipingyi Hydropower Co Ltd filed Critical Huaneng Clean Energy Research Institute
Priority to CN202111265001.5A priority Critical patent/CN113930798A/en
Publication of CN113930798A publication Critical patent/CN113930798A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60Constructional parts of cells
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/02Hydrogen or oxygen
    • C25B1/04Hydrogen or oxygen by electrolysis of water
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/70Assemblies comprising two or more cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen 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 application provides a compact is from lift-type no diaphragm electrolysis trough, including the cell body with set up in baffle in the cell body, the cell body does the baffle is separated for mutually independent first electrolysis room and second electrolysis room, the interval is provided with negative plate and first intermediate electrode in the first electrolysis room, the interval is provided with anode plate and second intermediate electrode in the second electrolysis room, first intermediate electrode with the second intermediate electrode electricity is connected, the negative plate with anode plate external power supply through set up the baffle in the cell body, and the baffle separates the cell body for mutually independent first electrolysis room and second electrolysis room, will separate in space with the oxygen production reaction, makes hydrogen and oxygen in the container of two differences simultaneously, has avoided the gaseous mixing from the root, has saved the diaphragm, has practiced thrift the cost.

Description

Compact self-elevating diaphragm-free electrolytic cell
Technical Field
The application relates to the technical field of electrolytic cells, in particular to a compact self-elevating diaphragm-free electrolytic cell.
Background
The electrolytic cell consists of a cell body, an anode and a cathode, wherein most of the anode chamber and the cathode chamber are separated by a diaphragm, and when direct current passes through the electrolytic cell, an oxidation reaction occurs at the interface of the anode and a solution, and a reduction reaction occurs at the interface of the cathode and the solution. The hydrogen and oxygen generated by water electrolysis of the existing electrolytic cell are easy to mix and explode, and the diaphragm causes extra resistance, so that the energy consumption is too high, the diaphragm is expensive in material and easy to damage, and the installation and maintenance are difficult.
Disclosure of Invention
The present application is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the purpose of the application is to provide a compact self-elevating diaphragm-free electrolytic cell, the diaphragm is arranged in the cell body, the diaphragm divides the cell body into a first electrolytic chamber and a second electrolytic chamber which are independent of each other, hydrogen production and oxygen production reaction are separated in space, hydrogen and oxygen are prepared in two different containers simultaneously, gas mixing is avoided fundamentally, a diaphragm is omitted, and the cost is saved.
In order to reach above-mentioned purpose, the application provides a compact is from lift-type no diaphragm electrolysis cell, including the cell body with set up in baffle in the cell body, the cell body does the baffle is separated for mutually independent first electrolysis room and second electrolysis room, the interval is provided with negative plate and first intermediate electrode in the first electrolysis room, the interval is provided with anode plate and second intermediate electrode in the second electrolysis room, first intermediate electrode with the second intermediate electrode electricity is connected, the negative plate with anode plate external power supply.
Further, the cathode plate and the first intermediate electrode are oppositely arranged, wherein the cathode plate is obliquely arranged at a preset angle relative to the vertical direction, and the first intermediate electrode is arranged in the same direction as the cathode plate/the first intermediate electrode is vertically arranged.
Further, the anode plate and the second intermediate electrode are oppositely arranged, wherein the anode plate is obliquely arranged at the preset angle relative to the vertical direction, and the second intermediate electrode is arranged in the same direction as the anode plate/the second intermediate electrode is vertically arranged.
Further, the preset angle ranges from 10 degrees to 30 degrees.
Further, the groove body is in a cone shape, and the partition plate is arranged in the middle of the groove body.
Further, electrolyte is filled in the first electrolysis chamber and the second electrolysis chamber, and the cathode plate, the anode plate, the first intermediate electrode plate and the second intermediate electrode plate are immersed in the electrolyte.
Further, the top plates of the inner walls of the first electrolysis chamber and the second electrolysis chamber are provided with wiring devices.
Further, the gas collecting device is arranged at the top ends of the first electrolysis chamber and the second electrolysis chamber.
Further, the inner walls of the first electrolytic chamber and the second electrolytic chamber are provided with active coatings.
Furthermore, the cathode plate and the anode plate are in a cone cylinder shape, and the first intermediate electrode and the second intermediate electrode are in a flat plate structure.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a first schematic structural diagram of a compact self-elevating diaphragm-free electrolytic cell according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a compact self-elevating diaphragm-free electrolytic cell according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
Fig. 1 is a schematic structural diagram of a compact self-elevating diaphragm-free electrolytic cell according to an embodiment of the present application.
Referring to fig. 1, the compact self-elevating diaphragm-free electrolytic cell comprises a cell body 8 and a partition plate 9 arranged in the cell body 8, wherein the cell body 8 is divided into a first electrolytic chamber 1 and a second electrolytic chamber 2 which are independent from each other by the partition plate 9, and the structural design makes the electrolytic cell more compact in structure and improves the space utilization rate. The electrolytic cell comprises a first electrolytic chamber 1, a cathode plate 3 and a first intermediate electrode 4 are arranged in the first electrolytic chamber 1 at intervals, an anode plate 5 and a second intermediate electrode 6 are arranged in the second electrolytic chamber 2 at intervals, the first intermediate electrode 4 is electrically connected with the second intermediate electrode 6, and the cathode plate 3 is connected with the anode plate 5 through an external power supply. Specifically, the whole tank body is in a cone shape, the side wall of the tank body is in an inclined plane structure, so that gas is prevented from gathering on the side wall of the tank body, the gas rises, and the gas collection is facilitated. Preferably, the partition board 9 is disposed in the middle of the tank body 8, and it can be understood that the first electrolysis chamber 1 and the second electrolysis chamber 2 are both in a half-cone structure, which is beneficial to the cathode side and the anode side to synchronously perform electrochemical reaction, and after the gas is electrolyzed and generated in the electrolysis chamber, the gas floats upwards and is respectively collected. The interval is provided with negative plate 3 and first intermediate electrode 4 in the first electrolysis chamber 1, the interval is provided with anode plate 5 and second intermediate electrode 6 in the second electrolysis chamber 2, first intermediate electrode 4 with the electricity of second intermediate electrode 6 is connected, and the oxyhydrogen reaction goes on respectively in the container of difference like this, and isolated from the space has avoided the gas mixing from the root, has saved the diaphragm, has reduced the hydrogen manufacturing cost. The cathode plate 3 and the anode plate 5 are externally connected with a power supply. Preferably, the top plates of the inner walls of the first electrolytic chamber 1 and the second electrolytic chamber 2 are provided with wiring devices, specifically, the wiring devices can be wiring boxes with waterproof performance, the cathode plate 3 and the anode plate 5 are connected to the wiring devices through wires, and then the wiring boxes realize the electric connection of the intermediate electrode plates in the two electrolytic chambers through external wires, so that the continuous hydrogen production reaction is ensured. Preferably, in the present embodiment, the cathode plate 3 and the anode plate 5 adopt a mesh-like structure, which facilitates the passage of air bubbles. The first electrolytic chamber 1 and the second electrolytic chamber 2 are formed by a main body structure poured by vinyl resin, and are coated with a seepage-proof layer and an outer corrosion-proof layer on the inner and outer sides.
In this embodiment, the first intermediate electrode 4 and the second intermediate electrode 6 are electrically connected to form a redox couple having a redox potential between the HER potential (-0.41V) and the OER potential (0.82V), and no gas is generated. Specifically, Ni (OH)2-NiOOH, polytriphenylamine (acidic), sodium flow battery electrodes, and the like can be selected.
As shown in fig. 1 and 2, the cathode plate 3 and the first intermediate electrode 4 are oppositely disposed, and the cathode plate 3 is obliquely disposed at a predetermined angle with respect to the vertical direction, the first intermediate electrode is disposed in the same direction as the cathode plate/the first intermediate electrode 4 is vertically disposed, the anode plate 5 is oppositely disposed with the second intermediate electrode 6, and the anode plate 5 is obliquely disposed at the predetermined angle with respect to the vertical direction, and the second intermediate electrode is disposed in the same direction as the anode plate/the second intermediate electrode 6 is vertically disposed. Preferably, the electrode plates and the side wall of the electrolytic chamber are arranged in parallel in the same direction, and the electrode plates are not easy to gather on the electrode plates or the side wall of the electrolytic chamber after gas is generated from the electrode plates. The middle electrode and the partition board are arranged in parallel or the middle electrode and the electrode board are arranged in the same direction, and when the middle electrode and the partition board are arranged in parallel, a larger inter-board gap is formed, which is beneficial to full occurrence of electrochemical reaction; when the middle electrode and the electrode plate are arranged in the same direction, the surface of the middle electrode is opposite to the surface of the electrode plate, so that the electrochemical reaction efficiency is improved, the structure of the electrolytic cell is more compact, a zero-spacing structure can be designed, and the electrochemical efficiency is improved. The specific structural design can be selected according to the structure of the electrolytic cell and the actual production situation. The present application is not limited by this comparison.
The preset angle ranges from 10 degrees to 30 degrees. In the angle range, the gas can rise quickly after being generated on the electrode plate, and the electrochemical reaction efficiency is high.
The tank body 8 is in a cone shape, and the partition plate 9 is arranged in the middle of the tank body 8. The special shape design of the tank body 8 makes the inner wall of the tank body difficult to gather gas, so that the gas produced on the electrode plate can rise freely, and in order to enable the electrolytic tank to have higher sealing performance, preferably, the electrolytic tank can be formed by one-time injection molding of plastic materials, so that higher structural strength and sealing performance are obtained.
The first electrolytic chamber 1 and the second electrolytic chamber 2 are filled with electrolyte, and the cathode plate 3, the anode plate 5, the first intermediate electrode 4 and the second intermediate electrode 6 are immersed in the electrolyte. Preferably, in order to ensure that the electrolytic chamber is always filled with the electrolyte, in order to supplement the electrolyte consumed by electrolysis, the electrolytic chamber is also provided with a fluid supplementing port, and fluid supplementing is carried out by externally connected fluid supplementing equipment, so that the sustainable running of the electrolytic reaction is ensured, and the reaction rate is stable.
The compact self-elevating diaphragm-free electrolytic cell further comprises a gas collecting device 7 disposed at the top end of the first electrolytic chamber 1 and the second electrolytic chamber 2. According to the spontaneous rising characteristic of the gas, the gas collecting devices 7 are respectively arranged at the top ends of the two electrolysis chambers, specifically, the gas collecting devices can be gas collecting tanks, and the upper ends of the first electrolysis chamber and the second electrolysis chamber are respectively connected with the gas collecting tanks through pipelines so as to store the gas.
The inner walls of the first electrolytic chamber 1 and the second electrolytic chamber 2 are provided with active coatings. The active coating is arranged to prevent bubbles from adhering to the inner wall of the container, so that the gas collection efficiency is improved. Particularly, a titanium-based ruthenium-titanium coating can be adopted, and the anti-sticking effect is good.
The cathode plate 3 and the anode plate 5 are in a cone cylinder shape, and the first intermediate electrode 4 and the second intermediate electrode 6 are in a flat plate structure. The conical electrode plate structure has larger surface area and is beneficial to improving the gas production efficiency. In other embodiments, the first intermediate electrode and the second intermediate electrode are also designed to be cone-shaped, so that the area of the electrode plate opposite to the intermediate electrode is larger, and the gas generation efficiency in unit area is higher. In the embodiment, the shape of the middle electrode is matched with the integral structure of the electrolytic chamber, and the middle electrode is conveniently arranged in the electrolytic chamber.
In other embodiments, the electrolytic cell of the present invention has a simple structure, so that the gas collecting device can be repeatedly and commonly used for a plurality of electrolytic cells to increase the production capacity and increase the production capacity, which is not limited in the present invention.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. The utility model provides a compact is from lift-type does not have diaphragm electrolysis trough, its characterized in that, include the cell body with set up in baffle in the cell body, the cell body does the baffle is separated for mutually independent first electrolysis room and second electrolysis room, the interval is provided with negative plate and first intermediate electrode in the first electrolysis room, the interval is provided with anode plate and second intermediate electrode in the second electrolysis room, first intermediate electrode with the second intermediate electrode electricity is connected, the negative plate with anode plate external power supply.
2. The compact self-elevating diaphragm-free electrolyzer of claim 1, wherein the cathode plate and the first intermediate electrode are oppositely disposed, wherein the cathode plate is disposed inclined at a predetermined angle with respect to the vertical direction, and the first intermediate electrode is disposed co-directionally with the cathode plate/the first intermediate electrode is disposed vertically.
3. The compact self-elevating diaphragm-free electrolyzer of claim 2, wherein said anode plate and said second intermediate electrode are oppositely disposed, wherein said anode plate is disposed inclined at said predetermined angle with respect to vertical, and said second intermediate electrode is disposed co-currently with said anode plate/said second intermediate electrode is vertically disposed.
4. The compact jack-up diaphragm-less electrolyzer of claim 3 characterized in that said preset angle ranges between 10 ° and 30 °.
5. The compact self-elevating diaphragm-free electrolytic cell according to claim 1, wherein the cell body is in a cone shape, and the diaphragm is disposed in the middle of the cell body.
6. The compact jack-up diaphragm-less electrolyzer of claim 1, wherein said first and second electrolysis chambers are filled with electrolyte and said cathode plate, said anode plate, said first intermediate electrode plate and said second intermediate electrode plate are immersed in said electrolyte.
7. The compact jack-up diaphragm-less electrolyzer of claim 1 characterized in that the ceiling of the inner walls of said first and second electrolysis chambers are each provided with wiring means.
8. The compact jack-up diaphragm-less electrolyzer of claim 1 further comprising gas collection means disposed at the top end of said first electrolysis chamber and said second electrolysis chamber.
9. The compact jack-up diaphragm-less electrolyzer of claim 1, characterized in that the inner walls within the first and second electrolysis chambers are each provided with an active coating.
10. The compact self-elevating diaphragm-free electrolyzer of claim 1, wherein said cathode plate and said anode plate are cone-shaped and cylindrical and said first intermediate electrode and said second intermediate electrode are flat plate structures.
CN202111265001.5A 2021-10-28 2021-10-28 Compact self-elevating diaphragm-free electrolytic cell Pending CN113930798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111265001.5A CN113930798A (en) 2021-10-28 2021-10-28 Compact self-elevating diaphragm-free electrolytic cell

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Application Number Priority Date Filing Date Title
CN202111265001.5A CN113930798A (en) 2021-10-28 2021-10-28 Compact self-elevating diaphragm-free electrolytic cell

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CN113930798A true CN113930798A (en) 2022-01-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114457360A (en) * 2022-02-11 2022-05-10 中国华能集团清洁能源技术研究院有限公司 Diaphragm-free micro-electrolysis cell amplification equipment, processing method and application
CN115216785A (en) * 2022-07-01 2022-10-21 中国华能集团清洁能源技术研究院有限公司 Electrode, electrolysis device and method for electrolytic hydrogen production

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114457360A (en) * 2022-02-11 2022-05-10 中国华能集团清洁能源技术研究院有限公司 Diaphragm-free micro-electrolysis cell amplification equipment, processing method and application
CN114457360B (en) * 2022-02-11 2023-08-25 中国华能集团清洁能源技术研究院有限公司 Diaphragm-free micro-electrolytic tank amplifying equipment, processing method and application
CN115216785A (en) * 2022-07-01 2022-10-21 中国华能集团清洁能源技术研究院有限公司 Electrode, electrolysis device and method for electrolytic hydrogen production
CN115216785B (en) * 2022-07-01 2024-04-30 中国华能集团清洁能源技术研究院有限公司 Electrode for electrolytic hydrogen production, electrolytic device and method

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