WO2024098910A1 - Electrolytic bath pole frame for hydrogen production from water electrolysis and electrolytic bath - Google Patents
Electrolytic bath pole frame for hydrogen production from water electrolysis and electrolytic bath Download PDFInfo
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- WO2024098910A1 WO2024098910A1 PCT/CN2023/116261 CN2023116261W WO2024098910A1 WO 2024098910 A1 WO2024098910 A1 WO 2024098910A1 CN 2023116261 W CN2023116261 W CN 2023116261W WO 2024098910 A1 WO2024098910 A1 WO 2024098910A1
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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
- 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
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Definitions
- the invention relates to the field of electrochemistry, in particular to an electrolytic cell pole frame for producing hydrogen by electrolyzing water and an electrolytic cell using the pole frame.
- Hydrogen energy is a new type of clean energy.
- the process of hydrogen energy utilization ultimately produces only water, without pollutants or carbon dioxide emissions. Therefore, under the historical background of the rapid development of clean energy and "carbon peak” and “carbon neutrality”, the development of hydrogen energy technology is imperative.
- hydrogen production by water electrolysis is the most commonly used and only large-scale commercial hydrogen production method.
- the key equipment for producing hydrogen by electrolysis of water is the electrolyzer, which is generally composed of end pressure plates, collector plates, multiple electrolysis chambers and fasteners.
- the electrolysis chamber generally includes bipolar plates, anode pole frames, anode gaskets, anode diffusion layers, anodes, diaphragms, cathodes, cathode diffusion layers, cathode gaskets and cathode pole frames.
- the pole frame is located at the periphery of the bipolar plate, and they are connected by means such as welding to form a pole frame assembly. Multiple pole frame assemblies are closely arranged in sequence through gaskets and other parts. The cavity between adjacent pole frame assemblies becomes an electrolysis chamber.
- Each two pole frame assemblies are separated by a diaphragm, and the electrolysis chamber is divided into two spaces: the anode chamber and the cathode chamber.
- the pole frame is the core component of the electrolyzer and has a significant impact on the efficiency of hydrogen production.
- the pole frame is a circular structure, with a group of alkali liquid inlet flow channel holes penetrating the front and back sides of the pole frame opened along the bottom annular direction of the pole frame, and on the front and back sides of the pole frame, the alkali liquid inlet flow channel holes are opened in radial directions with alkali liquid inlet flow channels respectively connected to the flow channel inlets on the front and back sides of the bipolar plate inside the pole frame; two groups of gas-liquid outlet flow channel holes penetrating the front and back sides of the pole frame are opened along the top annular direction of the pole frame, one group of gas-liquid outlet flow channel holes is opened in radial directions with gas-liquid outlet flow channels connected to the flow channel on the front side of the bipolar plate inside the pole frame, and the other group of gas-liquid outlet flow channel holes is opened in radial directions with gas-liquid outlet flow channels connected to the flow channel on the back side of the bipolar plate inside the pole frame.
- a group of alkali solution inlet flow channel holes 1 are distributed at the bottom of the pole frame, and two groups of gas-liquid outlet flow channel holes are distributed at the top of the pole frame, which are distributed separately on both sides of the center line of the pole frame.
- the gas-liquid outlet flow channel hole 2 is used as the oxygen (or hydrogen) and alkali liquid outlet of the anode (or cathode) chamber on the front of the pole frame, and all of them are used to discharge oxygen (or hydrogen) and alkali liquid.
- the right side is the gas-liquid outlet flow channel hole 3 as the hydrogen (or oxygen) and alkali liquid outlet of the cathode (or anode) chamber on the back of the pole frame, and all of them are used to discharge hydrogen (or oxygen) and alkali liquid.
- the alkali liquid enters the front flow channel of the bipolar plate inside the pole frame from the alkali liquid inlet flow channel hole 1, and is discharged from the gas-liquid outlet flow channel hole 2 after reacting to generate oxygen (or hydrogen).
- the alkali liquid enters the back flow channel of the bipolar plate inside the pole frame from the alkali liquid inlet flow channel hole 1, and is discharged from the gas-liquid outlet flow channel hole 3 after reacting to generate hydrogen (or oxygen).
- the gas-liquid outlet flow channel holes of the electrode frame in the prior art are unevenly distributed, resulting in a relatively chaotic flow field distribution in the electrolytic chamber.
- the exhaust efficiency and gas-liquid distribution of both the cathode chamber and the anode chamber in the electrolytic chamber are uneven. The closer to the top, the main gas, and the closer to the bottom, the less gas and the more alkaline solution, which further causes the gas to easily accumulate at the top of the electrolytic chamber, and the electrolysis efficiency is significantly reduced.
- the present invention provides an electrolytic cell pole frame for producing hydrogen by electrolysis of water and an electrolytic cell using the pole frame.
- the optimized structure can make the flow field distribution in the electrolysis chamber more uniform, which is beneficial to improving the electrolysis efficiency in the electrolysis chamber.
- the optimized structure can make the gas-liquid ratio of the gas-liquid outlet closer, which is beneficial to the smooth discharge of gas and liquid and reduce the pressure drop.
- an electrolytic cell pole frame for producing hydrogen by electrolysis of water, comprising an alkaline solution inlet at the bottom of the pole frame and uniformly and symmetrically distributed gas-liquid outlets at the top, wherein the gas-liquid outlets comprise a cathode gas-liquid outlet for discharging hydrogen and alkaline solution and an anode gas-liquid outlet for discharging oxygen and alkaline solution, and the cathode gas-liquid outlet and the anode gas-liquid outlet are alternately arranged at the top of the pole frame.
- the gas-liquid outlet includes a gas-liquid outlet flow channel hole and a gas-liquid outlet flow channel.
- the anode gas-liquid outlet and the cathode gas-liquid outlet are respectively The front and back sides of the pole frame are respectively connected.
- the anode gas-liquid outlet includes an anode gas-liquid outlet flow channel hole that passes through the front and back sides of the pole frame, and an anode gas-liquid outlet flow channel is opened on the front side of the pole frame, and the anode gas-liquid outlet flow channel hole is connected to the anode chamber of the electrolytic cell through the anode gas-liquid outlet flow channel.
- the cathode gas-liquid outlet includes a cathode gas-liquid outlet flow channel hole that passes through the front and back sides of the pole frame, and a cathode gas-liquid outlet flow channel is opened on the back side of the pole frame, and the cathode gas-liquid outlet flow channel hole is connected to the cathode chamber of the electrolytic cell through the cathode gas-liquid outlet flow channel.
- the anode gas-liquid outlet flow channel includes a trumpet-shaped flow channel guide port, and/or the cathode gas-liquid outlet flow channel includes a trumpet-shaped flow channel guide port.
- the alkali solution inlet includes an alkali solution inlet flow channel hole that passes through the front and back sides of the pole frame, and alkali solution inlet flow channels are opened on the front and back sides of the pole frame, and the alkali solution inlet flow channel hole is connected to the anode chamber and cathode chamber of the electrolytic cell through the alkali solution inlet flow channels on the front and back sides of the pole frame respectively.
- the alkali solution inlet flow channel includes a trumpet-shaped flow channel guide port.
- an electrolytic cell comprising the pole frame described in the present invention.
- the present invention has uniform and symmetrically distributed gas-liquid outlets, and the anode gas-liquid outlet and the cathode gas-liquid outlet, which are respectively connected to the anode chamber on the front of the pole frame and the cathode chamber on the back, are alternately arranged at the top of the pole frame, so that the gas and liquid in the anode chamber on the front of the pole frame and the cathode chamber on the back flow evenly, and the flow field is basically consistent, thereby improving the water electrolysis efficiency;
- the cathode gas-liquid outlet and the anode gas-liquid outlet of the present invention include trumpet-shaped flow channel guide ports, making it easier for gas and liquid to be introduced into the gas-liquid outlets, thus avoiding gas-liquid accumulation;
- the gas-liquid outlet of the present invention has a distribution angle that is as diffuse as possible, which is conducive to the smooth discharge of the generated gas and reduces the pressure drop.
- Figure 1 is a diagram of the pole frame structure of the prior art, wherein 1 is the alkali solution inlet flow channel hole, 2 is the gas-liquid outlet flow channel hole of the anode chamber (or cathode chamber) on the front side of the pole frame, 3 is the gas-liquid outlet flow channel hole of the cathode chamber (or anode chamber) on the back side of the pole frame, the solid line with an arrow is the gas-liquid flow field curve on the front side of the pole frame, and the dotted line with an arrow is the gas-liquid flow field curve on the back side of the pole frame.
- Fig. 2 is a pole frame structure diagram of the present invention, wherein the right side is an enlarged view of the N position on the left side, 1' is an alkali liquid inlet consisting of an alkali liquid inlet flow channel hole and an alkali liquid inlet flow channel, N is a gas-liquid outlet for discharging a mixture of oxygen (hydrogen) and alkali liquid, 2' is an anode gas-liquid outlet flow channel hole for oxygen and alkali liquid in the anode chamber on the front side of the pole frame, 3' is a cathode gas-liquid outlet flow channel hole for hydrogen and alkali liquid in the cathode chamber on the back side of the pole frame, 4' is an anode gas-liquid outlet flow channel for oxygen and alkali liquid on the front side of the pole frame (indicated by a solid line), 5' is a cathode gas-liquid outlet flow channel for hydrogen and alkali liquid on the back side of the pole frame (indicated by a dotted line), and 6' is
- Fig. 3 is a schematic diagram of the flow fields on the front and back sides of the pole frame of the present invention, wherein the bottom is an alkali solution inlet 1', which is connected to the anode chamber and cathode chamber on the front and back sides of the pole frame, and the top is a gas-liquid outlet N for discharging a mixture of oxygen (hydrogen) and alkali solution, which is composed of an anode gas-liquid outlet connected to the anode chamber on the front side of the pole frame and a cathode gas-liquid outlet connected to the cathode chamber on the back side of the pole frame, which are staggered and composed of an anode gas-liquid outlet connected to the anode chamber on the front side of the pole frame and a cathode gas-liquid outlet connected to the cathode chamber on the back side of the pole frame.
- the solid line with an arrow indicates the direction of the front flow field, and the direction of the back flow field is basically the same as that of the front, and therefore is not shown
- the purpose of the present invention is to improve the shortcomings of the existing pole frame design of the electrolytic cell for producing hydrogen by electrolysis of water, and to provide a more optimized pole frame design to improve the flow field distribution problem of the electrolytic chamber (including the anode chamber and the cathode chamber), indirectly improve the electrolysis efficiency, and improve the emission efficiency of gas and alkali solution, and reduce the generation of pressure drop.
- the pole frame of the electrolytic cell for producing hydrogen by electrolysis of water of the present invention comprises an alkaline solution inlet at the bottom of the pole frame and uniformly and symmetrically distributed gas-liquid outlets at the top, wherein the gas-liquid outlets comprise a cathode gas-liquid outlet for discharging hydrogen and alkaline solution and an anode gas-liquid outlet for discharging oxygen and alkaline solution, and the cathode gas-liquid outlet and the anode gas-liquid outlet are alternately arranged at the top of the pole frame.
- a substantially annular pole frame structure is illustrated, and a circular ring is specifically used in this embodiment.
- the bipolar plate is connected to the inner ring of the circular pole frame by means such as welding to form a pole frame assembly.
- the pole frame can also be integrally formed with the bipolar plate.
- an anode chamber or a cathode chamber of the electrolysis chamber is formed, and on the other side of the pole frame assembly, such as the back side of the pole frame, a cathode chamber or an anode chamber of the electrolysis chamber is formed.
- the front of the pole frame assembly is the anode chamber, and the alkali solution enters the anode chamber to react to generate oxygen, and the mixture of oxygen and alkali solution leaves the anode chamber through the anode gas-liquid outlet; and on the back of the pole frame assembly is the cathode chamber, and the alkali solution reacts in the cathode chamber to generate hydrogen, and the mixture of hydrogen and alkali solution leaves the cathode chamber through the cathode gas-liquid outlet.
- an alkali solution inlet 1' is distributed at the bottom of the annular pole frame, and a gas-liquid outlet N for discharging a mixture of oxygen (hydrogen) and alkali solution is distributed at the top.
- the alkali solution inlet 1' is preferably evenly and symmetrically distributed at the bottom of the pole frame, including an alkali solution inlet flow channel hole and an alkali solution inlet flow channel.
- the alkali solution inlet flow channel hole runs through the front and back of the pole frame, and alkali solution inlet flow channels are opened on the front and back of the pole frame.
- the alkali solution inlet flow channel holes are connected to the anode chamber and cathode chamber of the electrolytic cell through the alkali solution inlet flow channels on the front and back of the pole frame, respectively.
- the alkali solution is pumped into the alkali solution inlet flow channel holes of the electrolytic cell pole frame from the outside, and enters the anode chamber and cathode chamber of the electrolytic chamber through the alkali solution inlet flow channels on the front and back of the pole frame, respectively.
- the distribution of the alkali solution inlet 1' should be as diffuse as possible, and the outlet of the alkali solution inlet flow channel uses a trumpet-shaped flow guide port, so that The solution will be evenly distributed into the anode chamber and the cathode chamber, greatly reducing the flow field disturbance of the alkali solution entering the anode chamber and the cathode chamber from the alkali solution inlet 1'.
- the gas-liquid outlet N is preferably evenly and symmetrically distributed at the top of the pole frame, including a cathode gas-liquid outlet for discharging hydrogen and alkali solution and an anode gas-liquid outlet for discharging oxygen and alkali solution, and the cathode gas-liquid outlet and the anode gas-liquid outlet are alternately spaced at the top of the pole frame.
- the anode gas-liquid outlet includes an anode gas-liquid outlet flow channel hole 2' and an anode gas-liquid outlet flow channel 4', for the discharge of oxygen and alkali solution from the anode chamber on the front of the pole frame.
- the cathode gas-liquid outlet includes a cathode gas-liquid outlet flow channel hole 3' and a cathode gas-liquid outlet flow channel 5', for the discharge of hydrogen and alkali solution from the cathode chamber on the back of the pole frame.
- the anode gas-liquid outlet flow channel hole 2' and the cathode gas-liquid outlet flow channel hole 3' both penetrate the front and back of the pole frame, and alternate at the top of the pole frame.
- an anode gas-liquid outlet flow channel 4' connecting the anode gas-liquid outlet flow channel hole 2' and the anode chamber is provided, for the oxygen and alkali solution mixture of the anode chamber to flow out of the anode chamber.
- a cathode gas-liquid outlet flow channel 5' is provided, which connects the cathode gas-liquid outlet flow channel hole 3' and the cathode chamber, for the hydrogen and alkali solution mixture in the cathode chamber to flow out of the cathode chamber.
- the distribution angle of the gas-liquid outlet N should also be spread as much as possible, which is conducive to the smooth discharge of the gas (hydrogen or oxygen) produced by the reaction. Since the anode gas-liquid outlet flow channel hole 2' and the cathode gas-liquid outlet flow channel hole 3' are evenly, alternately and symmetrically distributed, this will make the flow channel hole on one side of the pole frame one or N more than the other side.
- the cathode gas-liquid outlet flow channel hole 3' connected to the cathode chamber on the back of the pole frame is more than the anode gas-liquid outlet flow channel hole 2' connected to the anode chamber on the front of the pole frame.
- the amount of hydrogen produced by the cathode chamber on the back of the pole frame is twice the amount of oxygen produced by the anode chamber on the front of the pole frame.
- the cathode gas-liquid outlet flow channel holes 3' with more holes are used to discharge the hydrogen and alkali solution mixture produced by the cathode chamber on the back of the pole frame, and the anode gas-liquid outlet flow channel holes 2' with smaller holes are used to discharge the oxygen and alkali solution mixture produced by the anode chamber on the front of the pole frame, making the layout more scientific.
- the anode gas-liquid outlet flow channel 4' on the front of the pole frame includes a trumpet-shaped flow channel guide port 6'
- the cathode gas-liquid outlet flow channel 5' on the back of the pole frame also includes a trumpet-shaped flow channel guide port 6'.
- the trumpet-shaped flow channel guide port 6' Through the trumpet-shaped flow channel guide port 6', the mixture of gas (hydrogen or oxygen) and alkali liquid is more easily introduced into the gas-liquid outlet N to avoid gas-liquid accumulation.
- the improved pole frame design of the present invention adopts uniform, alternating and symmetrical
- the distributed cathode gas-liquid outlet and anode gas-liquid outlet can make the flow field distribution of the electrolysis chamber more uniform.
- the alkali solution enters the anode chamber and cathode chamber on the front and back of the pole frame respectively through the alkali solution inlet 1' at the bottom of the pole frame, and produces oxygen and hydrogen respectively after the reaction, which are discharged through the gas-liquid outlet N at the top of the pole frame.
- the gas-liquid outlet N at the top of the pole frame is composed of uniform, alternating and symmetrically distributed cathode gas-liquid outlets and anode gas-liquid outlets, the gas-liquid flow in the anode chamber and cathode chamber on the front and back of the pole frame is uniform, and the flow field is basically consistent, which is conducive to improving the efficiency of water electrolysis and has significant innovation.
- the present invention also provides an electrolytic cell, which comprises the pole frame described in the present invention.
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Abstract
Description
本发明涉及电化学领域，具体地说，涉及一种电解水制氢电解槽极框及使用该极框的电解槽。The invention relates to the field of electrochemistry, in particular to an electrolytic cell pole frame for producing hydrogen by electrolyzing water and an electrolytic cell using the pole frame.
氢能是一种新型的清洁能源，氢能利用过程最终仅产生水，不会产生污染物及二氧化碳排放。因此，目前在清洁能源大发展以及“碳达峰”、“碳中和”的历史大背景下，氢能技术的发展势在必行。目前，电解水制氢是最常用也是唯一大规模商业化运行的制氢方法。Hydrogen energy is a new type of clean energy. The process of hydrogen energy utilization ultimately produces only water, without pollutants or carbon dioxide emissions. Therefore, under the historical background of the rapid development of clean energy and "carbon peak" and "carbon neutrality", the development of hydrogen energy technology is imperative. At present, hydrogen production by water electrolysis is the most commonly used and only large-scale commercial hydrogen production method.
电解水制氢的关键设备为电解槽，电解槽一般由端压板、集电板、多个电解小室和紧固件等组成，电解小室一般包括双极板、阳极极框、阳极密封垫、阳极扩散层、阳极、隔膜、阴极、阴极扩散层、阴极密封垫和阴极极框等部件。其中，极框位于双极板的外周，它们之间通过诸如焊接的方式进行连接，组成极框组件，多个极框组件经由密封垫等部位依次紧密排列，相邻极框组件之间的空腔成为电解小室，每两个极框组件之间用隔膜分隔，将电解小室分为阳极小室和阴极小室两个空间。极框是电解槽的核心组成部件，对制氢的效率有着重大影响。The key equipment for producing hydrogen by electrolysis of water is the electrolyzer, which is generally composed of end pressure plates, collector plates, multiple electrolysis chambers and fasteners. The electrolysis chamber generally includes bipolar plates, anode pole frames, anode gaskets, anode diffusion layers, anodes, diaphragms, cathodes, cathode diffusion layers, cathode gaskets and cathode pole frames. Among them, the pole frame is located at the periphery of the bipolar plate, and they are connected by means such as welding to form a pole frame assembly. Multiple pole frame assemblies are closely arranged in sequence through gaskets and other parts. The cavity between adjacent pole frame assemblies becomes an electrolysis chamber. Each two pole frame assemblies are separated by a diaphragm, and the electrolysis chamber is divided into two spaces: the anode chamber and the cathode chamber. The pole frame is the core component of the electrolyzer and has a significant impact on the efficiency of hydrogen production.
通常，极框为圆环结构，沿极框的底部环状方向开有一组贯穿极框正面和背面的碱液入口流道孔，在极框的正面和背面，碱液入口流道孔在径向方向均开有分别与极框内部的双极板的正面和背面的流道入口相连通的碱液入口流道；沿极框的顶部环状方向开有两组贯穿极框正面和背面的气液出口流道孔，其中一组气液出口流道孔在径向方向开有与极框内部的双极板的正面的流道相连通的气液出口流道，另一组气液出口流道孔在径向方向开有与极框内部的双极板的背面的道相连通的气液出口流道。Typically, the pole frame is a circular structure, with a group of alkali liquid inlet flow channel holes penetrating the front and back sides of the pole frame opened along the bottom annular direction of the pole frame, and on the front and back sides of the pole frame, the alkali liquid inlet flow channel holes are opened in radial directions with alkali liquid inlet flow channels respectively connected to the flow channel inlets on the front and back sides of the bipolar plate inside the pole frame; two groups of gas-liquid outlet flow channel holes penetrating the front and back sides of the pole frame are opened along the top annular direction of the pole frame, one group of gas-liquid outlet flow channel holes is opened in radial directions with gas-liquid outlet flow channels connected to the flow channel on the front side of the bipolar plate inside the pole frame, and the other group of gas-liquid outlet flow channel holes is opened in radial directions with gas-liquid outlet flow channels connected to the flow channel on the back side of the bipolar plate inside the pole frame.
如图1所示，在极框的底部分布着一组碱液入口流道孔1，而在极框的顶部分布着两组气液出口流道孔，在极框中心线的两边分开分布，图中左侧 为作为极框正面阳极(或阴极)小室氧气(或氢气)和碱液出口的气液出口流道孔2，全部用来排出氧气(或氢气)和碱液，右侧为作为极框背面阴极(或阳极)小室氢气(或氧气)和碱液出口的气液出口流道孔3，全部用来排出氢气(或氧气)和碱液。在极框的正面，碱液从碱液入口流道孔1进入极框内部的双极板正面流道，经反应生成氧气(或氢气)后从气液出口流道孔2排出，而在极框的背面，碱液从碱液入口流道孔1进入极框内部的双极板背面流道，经反应生成氢气(或氧气)后从气液出口流道孔3排出。As shown in FIG1 , a group of alkali solution inlet flow channel holes 1 are distributed at the bottom of the pole frame, and two groups of gas-liquid outlet flow channel holes are distributed at the top of the pole frame, which are distributed separately on both sides of the center line of the pole frame. The gas-liquid outlet flow channel hole 2 is used as the oxygen (or hydrogen) and alkali liquid outlet of the anode (or cathode) chamber on the front of the pole frame, and all of them are used to discharge oxygen (or hydrogen) and alkali liquid. The right side is the gas-liquid outlet flow channel hole 3 as the hydrogen (or oxygen) and alkali liquid outlet of the cathode (or anode) chamber on the back of the pole frame, and all of them are used to discharge hydrogen (or oxygen) and alkali liquid. On the front of the pole frame, the alkali liquid enters the front flow channel of the bipolar plate inside the pole frame from the alkali liquid inlet flow channel hole 1, and is discharged from the gas-liquid outlet flow channel hole 2 after reacting to generate oxygen (or hydrogen). On the back of the pole frame, the alkali liquid enters the back flow channel of the bipolar plate inside the pole frame from the alkali liquid inlet flow channel hole 1, and is discharged from the gas-liquid outlet flow channel hole 3 after reacting to generate hydrogen (or oxygen).
然而，现有技术的上述极框气液出口流道孔分布不均匀，造成电解小室内流场分布较为混乱，电解小室中无论是阴极小室还是阳极小室的排气效率和气液分布不均匀，越靠近顶部，则以气体为主，而越靠近底部，气体越少，碱液越多，从而进一步造成气体容易在电解小室内的顶部造成堆积，电解效率明显降低。However, the gas-liquid outlet flow channel holes of the electrode frame in the prior art are unevenly distributed, resulting in a relatively chaotic flow field distribution in the electrolytic chamber. The exhaust efficiency and gas-liquid distribution of both the cathode chamber and the anode chamber in the electrolytic chamber are uneven. The closer to the top, the main gas, and the closer to the bottom, the less gas and the more alkaline solution, which further causes the gas to easily accumulate at the top of the electrolytic chamber, and the electrolysis efficiency is significantly reduced.
因此，尚需要电解水制氢的极框的气液出口流道孔的结构进行改进，以改善电解小室的流体分布，提高电解效率。Therefore, there is still a need to improve the structure of the gas-liquid outlet flow channel hole of the pole frame for producing hydrogen by electrolyzing water, so as to improve the fluid distribution in the electrolysis chamber and improve the electrolysis efficiency.
发明内容Summary of the invention
针对现有技术的不足，本发明提供了一种电解水制氢电解槽极框及使用该极框的电解槽，该优化结构可以使电解小室的流场分布更加均匀，有利于提高电解小室内的电解效率，并且，通过该优化结构使气液出口的气液比例更加接近，有利于气液的顺利排同，减少压降产生。In view of the deficiencies in the prior art, the present invention provides an electrolytic cell pole frame for producing hydrogen by electrolysis of water and an electrolytic cell using the pole frame. The optimized structure can make the flow field distribution in the electrolysis chamber more uniform, which is beneficial to improving the electrolysis efficiency in the electrolysis chamber. In addition, the optimized structure can make the gas-liquid ratio of the gas-liquid outlet closer, which is beneficial to the smooth discharge of gas and liquid and reduce the pressure drop.
根据本发明的一个方面，提供了一种电解水制氢电解槽极框，包括极框底部的碱液入口和顶部的均匀且对称分布的气液出口，所述气液出口包括用于排出氢气和碱液的阴极气液出口以及用于排出氧气和碱液的阳极气液出口，所述阴极气液出口和所述阳极气液出口在所述极框顶部交替相间。According to one aspect of the present invention, there is provided an electrolytic cell pole frame for producing hydrogen by electrolysis of water, comprising an alkaline solution inlet at the bottom of the pole frame and uniformly and symmetrically distributed gas-liquid outlets at the top, wherein the gas-liquid outlets comprise a cathode gas-liquid outlet for discharging hydrogen and alkaline solution and an anode gas-liquid outlet for discharging oxygen and alkaline solution, and the cathode gas-liquid outlet and the anode gas-liquid outlet are alternately arranged at the top of the pole frame.
根据本发明的一种实施方式，所述气液出口包括气液出口流道孔和气液出口流道。According to one embodiment of the present invention, the gas-liquid outlet includes a gas-liquid outlet flow channel hole and a gas-liquid outlet flow channel.
根据本发明的一种实施方式，所述阳极气液出口和所述阴极气液出口分 别连通所述极框的正面和背面。According to one embodiment of the present invention, the anode gas-liquid outlet and the cathode gas-liquid outlet are respectively The front and back sides of the pole frame are respectively connected.
根据本发明的一种实施方式，所述阳极气液出口包括贯通所述极框正面和背面的阳极气液出口流道孔，并在所述极框的正面开设有阳极气液出口流道，所述阳极气液出口流道孔通过所述阳极气液出口流道与所述电解槽的阳极小室相连通。According to one embodiment of the present invention, the anode gas-liquid outlet includes an anode gas-liquid outlet flow channel hole that passes through the front and back sides of the pole frame, and an anode gas-liquid outlet flow channel is opened on the front side of the pole frame, and the anode gas-liquid outlet flow channel hole is connected to the anode chamber of the electrolytic cell through the anode gas-liquid outlet flow channel.
根据本发明的一种实施方式，所述阴极气液出口包括贯通所述极框正面和背面的阴极气液出口流道孔，并在所述极框的背面开设有阴极气液出口流道，所述阴极气液出口流道孔通过所述阴极气液出口流道与所述电解槽的阴极小室相连通。According to one embodiment of the present invention, the cathode gas-liquid outlet includes a cathode gas-liquid outlet flow channel hole that passes through the front and back sides of the pole frame, and a cathode gas-liquid outlet flow channel is opened on the back side of the pole frame, and the cathode gas-liquid outlet flow channel hole is connected to the cathode chamber of the electrolytic cell through the cathode gas-liquid outlet flow channel.
根据本发明的一种实施方式，所述阳极气液出口流道包括喇叭形的流道导流口，和/或所述阴极气液出口流道包括喇叭形的流道导流口。According to one embodiment of the present invention, the anode gas-liquid outlet flow channel includes a trumpet-shaped flow channel guide port, and/or the cathode gas-liquid outlet flow channel includes a trumpet-shaped flow channel guide port.
根据本发明的一种实施方式，所述碱液入口包括贯通所述极框正面和背面的碱液入口流道孔，并在所述极框的正面和背面均开设有碱液入口流道，所述碱液入口流道孔在所述极框的正面和背面分别通过所述碱液入口流道与所述电解槽的阳极小室和阴极小室连通。According to one embodiment of the present invention, the alkali solution inlet includes an alkali solution inlet flow channel hole that passes through the front and back sides of the pole frame, and alkali solution inlet flow channels are opened on the front and back sides of the pole frame, and the alkali solution inlet flow channel hole is connected to the anode chamber and cathode chamber of the electrolytic cell through the alkali solution inlet flow channels on the front and back sides of the pole frame respectively.
根据本发明的一种实施方式，所述碱液入口流道包括喇叭形的流道导流口。According to one embodiment of the present invention, the alkali solution inlet flow channel includes a trumpet-shaped flow channel guide port.
根据本发明的另一个方面，提供了一种电解槽，包括本发明所述的极框。According to another aspect of the present invention, an electrolytic cell is provided, comprising the pole frame described in the present invention.
本发明具有如下技术效果：The present invention has the following technical effects:
1、本发明均匀且对称分布的气液出口，分别与极框正面的阳极小室和背面的阴极小室连通的阳极气液出口和阴极气液出口在极框顶部交替相间，使得极框正面的阳极小室和背面的阴极小室内的气、液流动均匀，流场基本一致，提高水电解效率；1. The present invention has uniform and symmetrically distributed gas-liquid outlets, and the anode gas-liquid outlet and the cathode gas-liquid outlet, which are respectively connected to the anode chamber on the front of the pole frame and the cathode chamber on the back, are alternately arranged at the top of the pole frame, so that the gas and liquid in the anode chamber on the front of the pole frame and the cathode chamber on the back flow evenly, and the flow field is basically consistent, thereby improving the water electrolysis efficiency;
2、本发明阴极气液出口和阳极气液出口包括喇叭形的流道导流口，使得气液更容易导入气液出口中，避免气液的堆积；2. The cathode gas-liquid outlet and the anode gas-liquid outlet of the present invention include trumpet-shaped flow channel guide ports, making it easier for gas and liquid to be introduced into the gas-liquid outlets, thus avoiding gas-liquid accumulation;
3、本发明的气液出口，分布角度尽量扩散，这样有利于使产生的气体顺利排出，减小压降的产生。 3. The gas-liquid outlet of the present invention has a distribution angle that is as diffuse as possible, which is conducive to the smooth discharge of the generated gas and reduces the pressure drop.
图1为现有技术的极框结构图，其中1为碱液入口流道孔，2为极框正面阳极小室(或阴极小室)的气液出口流道孔，3为极框背面阴极小室(或阳极小室)的气液出口流道孔，带箭头的实线为极框正面的气液流场曲线，带箭头的虚线为极框背面的气液流场曲线。Figure 1 is a diagram of the pole frame structure of the prior art, wherein 1 is the alkali solution inlet flow channel hole, 2 is the gas-liquid outlet flow channel hole of the anode chamber (or cathode chamber) on the front side of the pole frame, 3 is the gas-liquid outlet flow channel hole of the cathode chamber (or anode chamber) on the back side of the pole frame, the solid line with an arrow is the gas-liquid flow field curve on the front side of the pole frame, and the dotted line with an arrow is the gas-liquid flow field curve on the back side of the pole frame.
图2为本发明的极框结构图，其中右侧为左侧N位置的放大图，1’为由碱液入口流道孔和碱液入口流道构成的碱液入口，N为用于排出氧气(氢气)和碱液混合物的气液出口，2’为极框正面阳极小室氧气和碱液的阳极气液出口流道孔，3’为极框背面阴极小室氢气和碱液的阴极气液出口流道孔，4’为极框正面氧气和碱液的阳极气液出口流道(实线表示)，5’为极框背面氢气和碱液的阴极气液出口流道(虚线表示)，6’为喇叭形的流道导流口。Fig. 2 is a pole frame structure diagram of the present invention, wherein the right side is an enlarged view of the N position on the left side, 1' is an alkali liquid inlet consisting of an alkali liquid inlet flow channel hole and an alkali liquid inlet flow channel, N is a gas-liquid outlet for discharging a mixture of oxygen (hydrogen) and alkali liquid, 2' is an anode gas-liquid outlet flow channel hole for oxygen and alkali liquid in the anode chamber on the front side of the pole frame, 3' is a cathode gas-liquid outlet flow channel hole for hydrogen and alkali liquid in the cathode chamber on the back side of the pole frame, 4' is an anode gas-liquid outlet flow channel for oxygen and alkali liquid on the front side of the pole frame (indicated by a solid line), 5' is a cathode gas-liquid outlet flow channel for hydrogen and alkali liquid on the back side of the pole frame (indicated by a dotted line), and 6' is a trumpet-shaped flow channel guide port.
图3为本发明的极框正面和背面的流场示意图，其中，底部为碱液入口1’，与极框正面和背面的阳极小室和阴极小室均连通，顶部为用于排出氧气(氢气)和碱液混合物的气液出口N，由与极框正面阳极小室连通的阳极气液出口和与极框背面阴极小室连通的阴极气液出口交错相间构成，带箭头的实线为正面流场方向示意，背面流场方向与正面基本相同，因而在图中未示出。Fig. 3 is a schematic diagram of the flow fields on the front and back sides of the pole frame of the present invention, wherein the bottom is an alkali solution inlet 1', which is connected to the anode chamber and cathode chamber on the front and back sides of the pole frame, and the top is a gas-liquid outlet N for discharging a mixture of oxygen (hydrogen) and alkali solution, which is composed of an anode gas-liquid outlet connected to the anode chamber on the front side of the pole frame and a cathode gas-liquid outlet connected to the cathode chamber on the back side of the pole frame, which are staggered and composed of an anode gas-liquid outlet connected to the anode chamber on the front side of the pole frame and a cathode gas-liquid outlet connected to the cathode chamber on the back side of the pole frame. The solid line with an arrow indicates the direction of the front flow field, and the direction of the back flow field is basically the same as that of the front, and therefore is not shown in the figure.
下面通过附图和实施例对本发明进一步详细说明。通过这些说明，本发明的特点和优点将变得更为清楚明确。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不限制本发明。The present invention is further described in detail below by the accompanying drawings and examples. Through these descriptions, the characteristics and advantages of the present invention will become clearer and more specific. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.
在这里专用的词“示例性”意为“用作例子、实施例或说明性”。这里作为“示例性”所说明的任何实施例不必解释为优于或好于其它实施例。尽管在附图中示出了实施例的各种方面，但是除非特别指出，不必按比例绘制附图。The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.
此外，下面所描述的本发明不同实施方式中涉及的技术特征只要彼此之间未构成冲突就可以相互结合。 In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
本发明的目的在于改进现有电解水制氢电解槽极框设计的不足，提供一种更优化的极框设计，以改进电解小室(包括阳极小室和阴极小室)的流场分布问题，间接提高电解效率，并可提高气体和碱液的排放效率，减小压降的产生。The purpose of the present invention is to improve the shortcomings of the existing pole frame design of the electrolytic cell for producing hydrogen by electrolysis of water, and to provide a more optimized pole frame design to improve the flow field distribution problem of the electrolytic chamber (including the anode chamber and the cathode chamber), indirectly improve the electrolysis efficiency, and improve the emission efficiency of gas and alkali solution, and reduce the generation of pressure drop.
下面结合附图来描述本发明实施例的电解水制氢电解槽极框。The pole frame of the electrolytic cell for producing hydrogen by electrolysis of water according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
本发明的电解水制氢电解槽极框，包括极框底部的碱液入口和顶部的均匀且对称分布的气液出口，所述气液出口包括用于排出氢气和碱液的阴极气液出口以及用于排出氧气和碱液的阳极气液出口，所述阴极气液出口和所述阳极气液出口在所述极框顶部交替相间。The pole frame of the electrolytic cell for producing hydrogen by electrolysis of water of the present invention comprises an alkaline solution inlet at the bottom of the pole frame and uniformly and symmetrically distributed gas-liquid outlets at the top, wherein the gas-liquid outlets comprise a cathode gas-liquid outlet for discharging hydrogen and alkaline solution and an anode gas-liquid outlet for discharging oxygen and alkaline solution, and the cathode gas-liquid outlet and the anode gas-liquid outlet are alternately arranged at the top of the pole frame.
如图2所示，图示了一种基本上为环形的极框结构，在本实施例中具体采用圆环形。双极板通过诸如焊接的方式与该圆环形极框的内环连接，从而形成极框组件。可选地，极框也可以与双极板一体成型。在极框组件的一侧，例如极框正面侧，形成电解小室的阳极小室或阴极小室，而在极框组件的另一侧，例如极框背面侧，形成电解小室的阴极小室或阳极小室。在本实施例中，极框组件的正面为阳极小室，碱液进入阳极小室发生反应生成氧气，氧气和碱液的混合物通过阳极气液出口离开阳极小室；而在极框组件的背面则为阴极小室，碱液进行阴极小室发生反应生成氢气，氢气和碱液的混合物通过阴极气液出口离开阴极小室。As shown in FIG. 2 , a substantially annular pole frame structure is illustrated, and a circular ring is specifically used in this embodiment. The bipolar plate is connected to the inner ring of the circular pole frame by means such as welding to form a pole frame assembly. Optionally, the pole frame can also be integrally formed with the bipolar plate. On one side of the pole frame assembly, such as the front side of the pole frame, an anode chamber or a cathode chamber of the electrolysis chamber is formed, and on the other side of the pole frame assembly, such as the back side of the pole frame, a cathode chamber or an anode chamber of the electrolysis chamber is formed. In this embodiment, the front of the pole frame assembly is the anode chamber, and the alkali solution enters the anode chamber to react to generate oxygen, and the mixture of oxygen and alkali solution leaves the anode chamber through the anode gas-liquid outlet; and on the back of the pole frame assembly is the cathode chamber, and the alkali solution reacts in the cathode chamber to generate hydrogen, and the mixture of hydrogen and alkali solution leaves the cathode chamber through the cathode gas-liquid outlet.
在本实施例中，圆环形极框的底部分布着碱液入口1’，而在顶部分布着用于排出氧气(氢气)和碱液混合物的气液出口N。In this embodiment, an alkali solution inlet 1' is distributed at the bottom of the annular pole frame, and a gas-liquid outlet N for discharging a mixture of oxygen (hydrogen) and alkali solution is distributed at the top.
碱液入口1’在极框底部优选均匀且对称分布，包括碱液入口流道孔和碱液入口流道，碱液入口流道孔贯通所述极框正面和背面，而在所述极框的正面和背面均开设有碱液入口流道，所述碱液入口流道孔在极框的正面和背面分别通过所述碱液入口流道与电解槽的阳极小室和阴极小室连通。碱液从外部用泵打入电解槽极框的碱液入口流道孔中，经由极框正面和背面的碱液入口流道分别进入电解小室的阳极小室和阴极小室内。优选地，碱液入口1’的分布应当尽量扩散，碱液入口流道的出口使用喇叭形的流道导流口，这样 会使得溶液分布均匀地进入阳极小室和阴极小室内，大大减小碱液从碱液入口1’进入阳极小室和阴极小室内的流场扰动。The alkali solution inlet 1' is preferably evenly and symmetrically distributed at the bottom of the pole frame, including an alkali solution inlet flow channel hole and an alkali solution inlet flow channel. The alkali solution inlet flow channel hole runs through the front and back of the pole frame, and alkali solution inlet flow channels are opened on the front and back of the pole frame. The alkali solution inlet flow channel holes are connected to the anode chamber and cathode chamber of the electrolytic cell through the alkali solution inlet flow channels on the front and back of the pole frame, respectively. The alkali solution is pumped into the alkali solution inlet flow channel holes of the electrolytic cell pole frame from the outside, and enters the anode chamber and cathode chamber of the electrolytic chamber through the alkali solution inlet flow channels on the front and back of the pole frame, respectively. Preferably, the distribution of the alkali solution inlet 1' should be as diffuse as possible, and the outlet of the alkali solution inlet flow channel uses a trumpet-shaped flow guide port, so that The solution will be evenly distributed into the anode chamber and the cathode chamber, greatly reducing the flow field disturbance of the alkali solution entering the anode chamber and the cathode chamber from the alkali solution inlet 1'.
气液出口N在极框顶部优选均匀且对称分布，包括用于排出氢气和碱液的阴极气液出口和用于排出氧气和碱液的阳极气液出口，所述阴极气液出口和阳极气液出口在极框顶部交替相间。在本实施例中，阳极气液出口包括阳极气液出口流道孔2’以及阳极气液出口流道4’，供极框正面阳极小室氧气和碱液的排出。同样，阴极气液出口包括阴极气液出口流道孔3’以及阴极气液出口流道5’，供极框背面阴极小室氢气和碱液的排出。阳极气液出口流道孔2’和阴极气液出口流道孔3’均贯通所述极框正面和背面，并且在极框顶部交替相间。在极框的正面，开设有连通阳极气液出口流道孔2’与阳极小室的阳极气液出口流道4’，用于供阳极小室的氧气和碱液混合物流出阳极小室。在极框的背面，开设有连通阴极气液出口流道孔3’与阴极小室的阴极气液出口流道5’，用于供阴极小室的氢气和碱液混合物流出阴极小室。优选地，气液出口N的分布角度也同样应当尽量扩散，这样有利于使反应产生的气体(氢气或氧气)顺利排出。由于阳极气液出口流道孔2’和阴极气液出口流道孔3’均匀、交替相间且对称分布，这样会使极框一面的流道孔比另一面多一个或N个。在本实施例中，与极框背面阴极小室连通的阴极气液出口流道孔3’较与极框正面阳极小室连通的阳极气液出口流道孔2’更多。根据电解水制氢的原理，极框背面阴极小室产生的氢气量是极框正面阳极小室氧气量的2倍，所以，孔数更多的阴极气液出口流道孔3’用于排出极框背面阴极小室产生的氢气和碱液混合物，孔数较小的阳极气液出口流道孔2’用于排出极框正面阳极小室产生的氧气和碱液混合物，使布局更科学。The gas-liquid outlet N is preferably evenly and symmetrically distributed at the top of the pole frame, including a cathode gas-liquid outlet for discharging hydrogen and alkali solution and an anode gas-liquid outlet for discharging oxygen and alkali solution, and the cathode gas-liquid outlet and the anode gas-liquid outlet are alternately spaced at the top of the pole frame. In the present embodiment, the anode gas-liquid outlet includes an anode gas-liquid outlet flow channel hole 2' and an anode gas-liquid outlet flow channel 4', for the discharge of oxygen and alkali solution from the anode chamber on the front of the pole frame. Similarly, the cathode gas-liquid outlet includes a cathode gas-liquid outlet flow channel hole 3' and a cathode gas-liquid outlet flow channel 5', for the discharge of hydrogen and alkali solution from the cathode chamber on the back of the pole frame. The anode gas-liquid outlet flow channel hole 2' and the cathode gas-liquid outlet flow channel hole 3' both penetrate the front and back of the pole frame, and alternate at the top of the pole frame. On the front of the pole frame, an anode gas-liquid outlet flow channel 4' connecting the anode gas-liquid outlet flow channel hole 2' and the anode chamber is provided, for the oxygen and alkali solution mixture of the anode chamber to flow out of the anode chamber. On the back of the pole frame, a cathode gas-liquid outlet flow channel 5' is provided, which connects the cathode gas-liquid outlet flow channel hole 3' and the cathode chamber, for the hydrogen and alkali solution mixture in the cathode chamber to flow out of the cathode chamber. Preferably, the distribution angle of the gas-liquid outlet N should also be spread as much as possible, which is conducive to the smooth discharge of the gas (hydrogen or oxygen) produced by the reaction. Since the anode gas-liquid outlet flow channel hole 2' and the cathode gas-liquid outlet flow channel hole 3' are evenly, alternately and symmetrically distributed, this will make the flow channel hole on one side of the pole frame one or N more than the other side. In this embodiment, the cathode gas-liquid outlet flow channel hole 3' connected to the cathode chamber on the back of the pole frame is more than the anode gas-liquid outlet flow channel hole 2' connected to the anode chamber on the front of the pole frame. According to the principle of hydrogen production by electrolysis of water, the amount of hydrogen produced by the cathode chamber on the back of the pole frame is twice the amount of oxygen produced by the anode chamber on the front of the pole frame. Therefore, the cathode gas-liquid outlet flow channel holes 3' with more holes are used to discharge the hydrogen and alkali solution mixture produced by the cathode chamber on the back of the pole frame, and the anode gas-liquid outlet flow channel holes 2' with smaller holes are used to discharge the oxygen and alkali solution mixture produced by the anode chamber on the front of the pole frame, making the layout more scientific.
优选地，如图2所示，极框正面的阳极气液出口流道4’包括喇叭形的流道导流口6’，同样，极框背面的阴极气液出口流道5’也包括喇叭形的流道导流口6’。通过喇叭形的流道导流口6’，使气体(氢气或氧气)和碱液的混合物更容易导入气液出口N，避免气液的堆积。Preferably, as shown in Fig. 2, the anode gas-liquid outlet flow channel 4' on the front of the pole frame includes a trumpet-shaped flow channel guide port 6', and similarly, the cathode gas-liquid outlet flow channel 5' on the back of the pole frame also includes a trumpet-shaped flow channel guide port 6'. Through the trumpet-shaped flow channel guide port 6', the mixture of gas (hydrogen or oxygen) and alkali liquid is more easily introduced into the gas-liquid outlet N to avoid gas-liquid accumulation.
通过本发明改进后的极框设计，在极框顶部采用均匀、交替相间且对称 分布的阴极气液出口和阳极气液出口，可以使电解小室的流场分布更加均匀。如图3所示，碱液通过极框底部的碱液入口1’分别进入极框正面和背面的阳极小室和阴极小室，发生反应后分别产生氧气和氢气，分别通过位于极框顶部的气液出口N排出。由于极框顶部的气液出口N由均匀、交替相间且对称分布的阴极气液出口和阳极气液出口构成，这样就使得极框正面和背面的阳极小室和阴极小室内的气液流动均匀，流场基本一致，有利于提高电解水的效率，具有显著的创新性。The improved pole frame design of the present invention adopts uniform, alternating and symmetrical The distributed cathode gas-liquid outlet and anode gas-liquid outlet can make the flow field distribution of the electrolysis chamber more uniform. As shown in Figure 3, the alkali solution enters the anode chamber and cathode chamber on the front and back of the pole frame respectively through the alkali solution inlet 1' at the bottom of the pole frame, and produces oxygen and hydrogen respectively after the reaction, which are discharged through the gas-liquid outlet N at the top of the pole frame. Since the gas-liquid outlet N at the top of the pole frame is composed of uniform, alternating and symmetrically distributed cathode gas-liquid outlets and anode gas-liquid outlets, the gas-liquid flow in the anode chamber and cathode chamber on the front and back of the pole frame is uniform, and the flow field is basically consistent, which is conducive to improving the efficiency of water electrolysis and has significant innovation.
进一步，本发明还提供了一种电解槽，其包括本发明所述的极框。Furthermore, the present invention also provides an electrolytic cell, which comprises the pole frame described in the present invention.
在本发明的描述中，需要说明的是，术语“上”、“下”、“内”、“外”、“前”、“后”、“左”、“右”等指示的方位或位置关系为基于本发明工作状态下的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inside", "outside", "front", "back", "left", "right", etc. are directions or positional relationships based on the working state of the present invention, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
以上结合了优选的实施方式对本发明进行了说明，不过这些实施方式仅是范例性的，仅起到说明性的作用。在此基础上，可以对本发明进行多种替换和改进，这些均落入本发明的保护范围内。 The present invention has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, the present invention may be subjected to a variety of substitutions and improvements, all of which fall within the scope of protection of the present invention.
Claims (9)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223013964.9 | 2022-11-09 | ||
| CN202223013964.9U CN218710889U (en) | 2022-11-09 | 2022-11-09 | Electrolytic tank pole frame for producing hydrogen by electrolyzing water and electrolytic tank |
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| WO2024098910A1 true WO2024098910A1 (en) | 2024-05-16 |
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| PCT/CN2023/116261 Ceased WO2024098910A1 (en) | 2022-11-09 | 2023-08-31 | Electrolytic bath pole frame for hydrogen production from water electrolysis and electrolytic bath |
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| CN (1) | CN218710889U (en) |
| WO (1) | WO2024098910A1 (en) |
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| CN117737761A (en) * | 2023-12-26 | 2024-03-22 | 广东卡沃罗氢科技有限公司 | Electrode frame, electrolysis cell and electrolysis cell |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN218710889U (en) * | 2022-11-09 | 2023-03-24 | 嘉庚创新实验室 | Electrolytic tank pole frame for producing hydrogen by electrolyzing water and electrolytic tank |
| CN116463657A (en) * | 2023-05-11 | 2023-07-21 | 北京华易氢元科技有限公司 | A three-dimensional multi-channel square hydrogen production electrolyzer |
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- 2022-11-09 CN CN202223013964.9U patent/CN218710889U/en active Active
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| CN218710889U (en) | 2023-03-24 |
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