WO2023202017A1 - Dispositif d'électrolyseur d'eau alcaline pourvu de montants de liaison d'entrée à courants multiples - Google Patents

Dispositif d'électrolyseur d'eau alcaline pourvu de montants de liaison d'entrée à courants multiples Download PDF

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Publication number
WO2023202017A1
WO2023202017A1 PCT/CN2022/127080 CN2022127080W WO2023202017A1 WO 2023202017 A1 WO2023202017 A1 WO 2023202017A1 CN 2022127080 W CN2022127080 W CN 2022127080W WO 2023202017 A1 WO2023202017 A1 WO 2023202017A1
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WO
WIPO (PCT)
Prior art keywords
terminals
group
current input
alkaline water
device provided
Prior art date
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Ceased
Application number
PCT/CN2022/127080
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English (en)
Chinese (zh)
Inventor
张存满
邓凌澳
金黎明
耿振
吕洪
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Tongji University
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Tongji University
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Publication of WO2023202017A1 publication Critical patent/WO2023202017A1/fr
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    • 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
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
    • 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
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • 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
    • C25B15/02—Process control or regulation
    • C25B15/023—Measuring, analysing or testing during electrolytic production
    • C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
    • C25B15/033—Conductivity
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/133—Renewable energy sources, e.g. sunlight

Definitions

  • the invention relates to the technical field of hydrogen production through electrolysis of water, and in particular to an alkaline water electrolyzer device provided with multiple current input terminals.
  • Hydrogen energy is a brand-new energy system, and its preparation process is the key core.
  • Alkaline electrolysis of water for hydrogen production can be coupled with electricity, and the electrolyzer also has a certain adaptability to power fluctuations.
  • the advantage of this method is that the hydrogen produced is of high purity, the subsequent purification process is simple, and the raw material for hydrogen production is water, so there is no need to worry Insufficient resources problem.
  • alkaline electrolyzer technology With the development of alkaline electrolyzer technology, the research demand for large-scale alkaline electrolyzers has gradually increased.
  • the electrolysis chamber generally only receives the current input from one terminal and outputs it from another terminal, such as the Chinese patent “A Vehicle-mounted Hydrogen Fuel Cell Electrolysis Generation Cell” (Authorization No. CN201821714922.9) and the Chinese Patent “A hydrogen production device for electrolyzing water” (CN201721469473.1).
  • the input current density is large. Due to the influence of bubbles, mass transfer, heat transfer and other factors, the resistance distribution in the electrolysis cell for a single current input terminal is extremely uneven, which in turn causes the current Uneven distribution makes the electrolytic cell work unstable.
  • the purpose of the present invention is to solve the above problems and provide an alkaline water electrolyzer device equipped with multiple current input terminals.
  • the current distribution is improved and the distribution tends to be uniform, so that the electrolyzer can Stable job.
  • An alkaline water electrolyzer device provided with multiple current input terminals, including a tank body and an electrolytic diaphragm installed in the tank body.
  • the electrolytic diaphragm divides the inner cavity of the tank body into two independent chambers. : Cathode cavity and anode cavity;
  • the cathode cavity is provided with a cathode electrode, and the anode cavity is provided with an anode electrode.
  • the cathode electrode is connected to the first group of terminals, and the anode electrode is connected to the second group of terminals,
  • the first group of terminals and the second group of terminals are composed of a plurality of terminals and are respectively connected to the cathode electrode and the anode electrode.
  • the current input and output of the first group of terminals and the second group of terminals are controlled respectively.
  • the electrolytic tank is a closed box, and the electrolytic diaphragm is installed vertically in the middle part of the tank.
  • the lower part of the cathode chamber is provided with a liquid inlet for introducing the electrolyte, and the upper part is provided with a hydrogen gas channel.
  • liquid inlet is connected to a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
  • an electrolyte inlet is provided in the lower part of the anode chamber, and an oxygen channel is provided in the upper part.
  • liquid inlet is connected to a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
  • tops of the first group of terminals and the second group of terminals are connected to the pulse voltage generator through wires.
  • first group of terminals and the second group of terminals are respectively provided with a plurality of terminals.
  • connecting posts are arranged around the circumference of the cathode electrode and the anode electrode.
  • first group of terminals and the second group of terminals are respectively provided with 3-6 terminals, and are arranged at equal intervals around the cathode electrode and the anode electrode.
  • the present invention has the following beneficial effects:
  • the present invention uses multiple current input terminals to provide current for electrolysis in the electrolysis cell.
  • This structural arrangement fully considers the problem of uneven resistance distribution inside the alkaline electrolytic cell during electrolysis under large current.
  • the current during electrolysis will be from multiple sources. Input from different directions, due to the uniformity of the distribution of terminals, the current superposition effect in each area tends to be consistent, and the current distribution tends to be uniform, balancing the current distribution in the electrolysis cell; at the same time, the design of multiple terminals facilitates accurate current distribution Control can effectively adjust the working status of the electrolyzer, avoid excessive regional reactions, and ensure production safety.
  • Figure 1 is a schematic structural diagram of this electrolytic cell
  • Figure 2 is a schematic cross-sectional view of the cathode electrode (3 terminals);
  • FIG. 3 is a schematic cross-sectional view of the cathode electrode (6 binding posts); in the figure, 1 is the tank, 2 is the diaphragm, 3 is the hydrogen channel, 4 is the oxygen channel, 5 is the first set of binding posts, and 6 is the second set of wiring.
  • Column, 7 is the cathode electrode, 8 is the anode electrode, 9 is the liquid inlet, and 10 is the electrolyte liquid inlet.
  • FIG 1 is a schematic structural diagram of an alkaline water electrolyzer device of the present invention.
  • the electrolyzer is a closed box.
  • An electrolysis diaphragm 2 is installed vertically in the middle of the tank 1.
  • Hydrogen gas chambers are installed on the left and right sides above the tank.
  • Channel 3 and oxygen channel 4 are equipped with a first set of terminals 5 and a second set of terminals 6 evenly distributed on the left and right sides of the middle part outside the tank, as shown in Figure 2.
  • the first group of terminal posts 5 and the second group of terminal posts 6 both penetrate the tank body 1.
  • the bottom of the first group of terminal posts 5 is connected to the cathode electrode 7, and the bottom of the second group of terminal posts 6 is connected to the anode electrode 8.
  • a liquid inlet 9 is provided at the lower part of the left side, and an electrolyte liquid inlet 10 is provided at the lower part of the right side of the tank body.
  • the electrolyte enters the electrolytic cell through the liquid inlet 9, and the external power supply inputs current from three directions toward the anode electrode 8 through the second group of terminals 6. After passing through the electrolyte, diaphragm 2 and cathode electrode 7, it passes through the first group. Terminal 5 outputs for electrolysis process. The hydrogen produced during the electrolysis process is discharged through the hydrogen channel 3, and the oxygen produced is discharged through the oxygen channel 4.
  • the tops of the first group of terminal posts 5 and the second group of terminal posts 6 can be connected to the pulse voltage generator through wires.
  • the liquid inlet 9 can be connected to a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
  • the electrolyte inlet 10 can be connected to a water pump and an electrolyte storage tank, and the input electrolyte is potassium hydroxide or sodium hydroxide solution.
  • the hydrogen channel 3 and the oxygen channel 4 can be connected to gas purification and drying devices.
  • the current input and output of the first group of terminals 5 and the second group of terminals 6 can be controlled separately. At the same time, this design is not limited to designing a total of three terminals in the same group. Four or five terminals can be designed as needed. .
  • This device uses multiple current input terminals to provide current for electrolysis in the electrolysis cell.
  • This structural setting fully considers the problem of uneven resistance distribution inside the alkaline electrolytic cell during electrolysis under high current.
  • the current during electrolysis will be from multiple Input from different directions, due to the uniformity of the distribution of terminals, the current superposition effect in each area tends to be consistent, and the current distribution tends to be uniform, balancing the current distribution in the electrolysis cell; at the same time, the design of multiple terminals facilitates precise control of current distribution , can effectively adjust the working status of the electrolyzer, avoid excessive regional reactions, and ensure production safety.

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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)
  • Automation & Control Theory (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

La présente invention concerne un dispositif d'électrolyseur d'eau alcaline pourvu de montants de liaison d'entrée à courants multiples. Le dispositif comprend un corps d'électrolyseur et une membrane électrolytique montée dans le corps d'électrolyseur. La membrane électrolytique divise une cavité interne du corps d'électrolyseur en deux cavités indépendantes, c'est-à-dire une cavité de cathode et une cavité d'anode ; une électrode de cathode est disposée dans la cavité de cathode ; une électrode d'anode est disposée dans la cavité d'anode ; l'électrode de cathode est reliée à un premier groupe de montants de liaison ; l'électrode d'anode est reliée à un second groupe de montants de liaison ; et le premier groupe de montants de liaison et le second groupe de montants de liaison sont tous deux composés d'une pluralité de montants de liaison et sont respectivement reliés à différentes positions de l'électrode de cathode et de l'électrode d'anode. Selon la présente invention, en adoptant la conception des montants de liaison d'entrée à courants multiples, la distribution de courant est améliorée et tend à être uniforme, de telle sorte que l'électrolyseur peut fonctionner de manière stable.
PCT/CN2022/127080 2022-04-20 2022-10-24 Dispositif d'électrolyseur d'eau alcaline pourvu de montants de liaison d'entrée à courants multiples Ceased WO2023202017A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210418857.X 2022-04-20
CN202210418857.XA CN115011983B (zh) 2022-04-20 2022-04-20 一种设有多电流输入接线柱的碱水电解槽装置

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WO2023202017A1 true WO2023202017A1 (fr) 2023-10-26

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WO (1) WO2023202017A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119824443A (zh) * 2025-02-11 2025-04-15 六盘山实验室 一种无密封结构方形模块化碱性电解槽

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115011983B (zh) * 2022-04-20 2023-07-04 同济大学 一种设有多电流输入接线柱的碱水电解槽装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5786108A (en) * 1995-11-06 1998-07-28 Varta Batterie Aktiengesellschaft Electrochemical cell
CN104813519A (zh) * 2012-09-20 2015-07-29 阿克爱科蒂夫有限公司 用于形成到传导性纤维电极的电气连接的方法以及这样形成的电极
CN107529564A (zh) * 2017-09-15 2018-01-02 佛山市南海区昊森机械设备有限公司 一种新型电解装置
CN207512264U (zh) * 2017-11-06 2018-06-19 山西大同大学 一种电解水制氢装置
CN109879376A (zh) * 2019-03-04 2019-06-14 苏州博创环保科技有限公司 一种封闭式电化学反应装置
CN216039848U (zh) * 2021-07-19 2022-03-15 无锡隆基氢能科技有限公司 电解槽
CN115011983A (zh) * 2022-04-20 2022-09-06 同济大学 一种设有多电流输入接线柱的碱水电解槽装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013028822A (ja) * 2011-07-26 2013-02-07 Toshiba Corp アルカリ水電解装置およびアルカリ水電解方法
CN207659530U (zh) * 2017-11-06 2018-07-27 山西大同大学 电解水制氢氧气装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5786108A (en) * 1995-11-06 1998-07-28 Varta Batterie Aktiengesellschaft Electrochemical cell
CN104813519A (zh) * 2012-09-20 2015-07-29 阿克爱科蒂夫有限公司 用于形成到传导性纤维电极的电气连接的方法以及这样形成的电极
CN107529564A (zh) * 2017-09-15 2018-01-02 佛山市南海区昊森机械设备有限公司 一种新型电解装置
CN207512264U (zh) * 2017-11-06 2018-06-19 山西大同大学 一种电解水制氢装置
CN109879376A (zh) * 2019-03-04 2019-06-14 苏州博创环保科技有限公司 一种封闭式电化学反应装置
CN216039848U (zh) * 2021-07-19 2022-03-15 无锡隆基氢能科技有限公司 电解槽
CN115011983A (zh) * 2022-04-20 2022-09-06 同济大学 一种设有多电流输入接线柱的碱水电解槽装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119824443A (zh) * 2025-02-11 2025-04-15 六盘山实验室 一种无密封结构方形模块化碱性电解槽

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