WO2012065524A1 - 自呼吸式电化学制氧机 - Google Patents

自呼吸式电化学制氧机 Download PDF

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Publication number
WO2012065524A1
WO2012065524A1 PCT/CN2011/082048 CN2011082048W WO2012065524A1 WO 2012065524 A1 WO2012065524 A1 WO 2012065524A1 CN 2011082048 W CN2011082048 W CN 2011082048W WO 2012065524 A1 WO2012065524 A1 WO 2012065524A1
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anode
cathode
controller
pure oxygen
oxygen generating
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PCT/CN2011/082048
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English (en)
French (fr)
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胡鸣若
余晴春
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无锡国赢科技有限公司
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Publication of WO2012065524A1 publication Critical patent/WO2012065524A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/02—Preparation of oxygen

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  • the invention relates to the technical field of electrochemical oxygen generation, which is specifically a self-breathing electrochemical oxygen generator.
  • the existing electrochemical pure oxygen manufacturing equipment needs to be in the electrolytic cell or It is manufactured in the environment of electrolyte and has a complicated structure and complicated process for producing oxygen, and it is easy to cause pollution during the process of producing oxygen, and the purity of oxygen is not up to standard.
  • the present invention provides a self-breathing electrochemical oxygen concentrator which has a simple structure, a simple process for producing oxygen, no pollution during the process of producing oxygen, and high purity of oxygen produced.
  • the utility model is characterized in that it comprises an outer casing, the outer casing comprises an upper casing and a lower casing, and the lower casing comprises a battery installation cavity, a controller installation cavity, a pure oxygen generating component mounting boss, and the side wall of the lower casing is opened.
  • the pure oxygen generating component boss is provided with an oxygen venting hole
  • the oxygen venting hole is connected to the external joint
  • the battery mounting cavity is provided with a battery
  • a controller is installed in the controller mounting cavity, and pure oxygen occurs
  • the component is fastened to the pure oxygen generating component boss, and the positive electrode and the negative electrode of the battery are respectively connected to the positive electrode and the negative electrode of the access end of the controller through a lead wire, and the anode wire and the cathode wire of the pure oxygen generating component are respectively connected
  • the positive and negative poles of the output end of the controller, the controller is equipped with a power switch, and the upper casing cover is mounted on the upper end of the lower casing.
  • the pure oxygen generating component comprises a membrane electrode assembly comprising an anode gas diffusion layer, an anode catalytic layer, a proton exchange membrane, a cathode catalytic layer, a cathode gas diffusion layer, and the proton exchange membrane comprises a central portion and a peripheral exposed portion, a porous gas end plate, a cathode sealing frame piece, a peripheral exposed portion of the proton exchange membrane, an anode sealing frame piece, and an oxygen end plate are sequentially fastened, and the oxygen end plate is the pure An oxygen generating component mounting boss, wherein the porous gas end plate is uniformly provided with a small hole in a center thereof, the small hole is opposite to the cathode gas diffusion layer, and the cathode gas diffusion layer is connected to a negative electrode of the external controller output end a middle portion of the pure oxygen generating component mounting boss and a side portion having a lead outlet, wherein the anode gas diffusion layer is connected to the positive electrode of the external controller output end through
  • the cathode cathode layer surrounded by the cathode gas diffusion layer, the cathode sealing frame sheet and the porous gas end plate is provided with a cathode collector layer, and the cathode gas diffusion layer is connected to the cathode collector layer, and the cathode collector layer Forming a spiral or mesh for the conductive wire, the outer end of which passes through the porous gas end plate, and connects the negative electrode of the external output end of the controller, the conductive wire is the cathode wire; the anode gas An anode current collector layer is disposed in the intermediate anode cavity surrounded by the diffusion layer, the anode sealing frame piece, and the pure oxygen generating component mounting boss, and the anode gas diffusion layer is connected to the anode current collecting layer, and the anode current collecting layer
  • the layer is a conductive metal wire wound to form a spiral or a mesh, and an outer end thereof passes through the lead outlet and is connected to an anode of an external output end of the controller,
  • the screw is sequentially passed through the porous gas end plate, the cathode sealing frame piece, the exposed portion of the proton exchange film, and the anode sealing frame piece, and then fastened to the pure oxygen generating component mounting boss;
  • the proton exchange membrane is specifically a hydrogen ion exchange membrane
  • the controller is externally connected with an indicator light.
  • the switch After adopting the structure of the invention, the switch is closed, the controller delivers the preset current to the pure oxygen generating component, the pure oxygen generating component generates oxygen, the oxygen is delivered to the oxygen outlet hole, and the oxygen outlet hole communicates with the external joint to output oxygen, and the structure thereof
  • the process of simple and simple oxygen production is simple; since the pure oxygen generating component for producing oxygen is encapsulated inside, the pure oxygen generated can only be output from the oxygen vent, and the purity of oxygen produced is high; and in the process of manufacturing oxygen, only Air and external batteries are introduced, and there is no pollution in the process of producing oxygen.
  • Figure 1 is a schematic view showing the assembly of the perspective view of the present invention
  • FIG. 2 is a perspective view showing the structure of a lower case of the present invention.
  • FIG. 3 is a schematic view showing the specific assembly of the pure oxygen generating component of the present invention.
  • Fig. 4 is a schematic enlarged view showing the structure of a membrane electrode assembly in a pure oxygen generating module of the present invention.
  • the structure is shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, which includes an outer casing, and the outer casing includes an upper casing 22 and a lower casing 23
  • the upper case 22 and the lower case 23 are both made of a non-conductive material
  • the lower case 23 includes a battery mounting cavity 24, a controller mounting cavity 25, a pure oxygen generating component mounting boss 6, and a lower case 23
  • the side wall is provided with a venting hole 27, the pure oxygen generating component mounting boss 6 is provided with an oxygen venting hole 28, the oxygen venting hole 28 is connected to the external joint 29, and the battery mounting cavity 24 passes through the battery spring 30
  • controller mounting chamber 25 is equipped with controller 21
  • pure oxygen generating component 20 is fastened to the pure oxygen generating component mounting boss 6
  • battery 26 The positive electrode and the negative electrode are respectively connected to the positive electrode and the negative electrode of the access terminal through the lead wire, and the anode wire and the cathode wire of the pure oxygen generating component 20 are respectively connected to the positive electrode and the negative electrode
  • the porous gas end plate 5 is a non-conductive material, a cathode gas diffusion layer 13, a cathode sealing frame 4, and a porous gas end plate 5
  • a cathode collector layer 3 is arranged in the middle cathode cavity
  • a cathode gas diffusion layer 13 is connected to the cathode collector layer 3
  • a cathode collector layer 3 The conductive wire is spirally or mesh-shaped, and the wire may be platinum wire, gold wire, silver wire, platinized wire, gold plated wire, silver plated wire, and the outer end of the cathode collector layer 3 passes through the porous gas end plate.
  • the three are surrounded by an intermediate anode cavity, the anode casing is filled with an anode collector layer 2, the anode gas diffusion layer 9 is connected to the anode collector layer 2, and the anode collector layer 2
  • the conductive wire is spirally or meshed, and the wire may be platinum wire, gold wire, silver wire, platinized wire, gold plated wire, silver plated wire, and the middle portion and side portion of the pure oxygen generating component mounting boss 6 Open lead outlet 18, anode collector layer 2 The outer end passes through the lead outlet 18 of the oxygen end plate 6 and is
  • the power switch 19 is turned on, and the battery 26 is powered on the controller 21 after being turned on, and the indicator light 16 is turned on.
  • the controller 21 outputs a constant current value and loads it onto the self-breathing electrochemical pure oxygen generating assembly, thereby generating oxygen, that is, air entering the lower casing 23 through the vent hole 27 and entering the gas of the porous gas end plate 5.
  • the cathode gas diffusion layer 13 of the pore and membrane electrode assembly 1 is self-breathed into the cathode catalytic layer 12 by diffusion transfer, electrons enter the cathode catalytic layer 12, and oxygen and electrons in the air in the cathode catalytic layer 12 are exchanged via protons.
  • the hydrogen ions transferred from the membrane 11 undergo an electrochemical reaction as follows, and generate water, that is, a cathode reaction: O 2 + 4H + + 4e - à 2H 2 O .
  • the generated water is transferred to the anode catalytic layer 10 of the membrane electrode assembly 1 through the proton exchange membrane 11 by means of concentration diffusion and is decomposed into oxygen, electrons and hydrogen ions, that is, the following electrochemical reaction occurs: 2H 2 O à O 2 +4H + +4e - , pure oxygen is thereby concentrated; hydrogen ions generated in the anode catalytic layer 10 are transferred to the cathode catalytic layer 12 through the proton exchange membrane 11 under the action of an electric field force; in the anode catalytic layer 10 The generated electrons are passed through the anode gas diffusion layer 9 and finally returned to the cathode catalyst layer 12; the concentrated pure oxygen is passed through the anode gas diffusion layer 9, through the oxygen gas outlet 28 to the joint 29, and finally through the joint 29 The upper connecting hose 8 is released outwards.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Hybrid Cells (AREA)

Abstract

本发明提供了自呼吸式电化学制氧机，其结构简单、制造氧气过程简单，制造氧气的过程中无污染，且制造出的氧气纯净度高。其特征在于：其包括外壳体，外壳体包括上壳、下壳，下壳包括电池安装腔、控制器安装腔、纯氧发生组件安装凸台，下壳的侧壁开有透气孔，纯氧发生组件凸台开有氧气出气孔，氧气出气孔连通外部接头，电池安装腔内装有电池，控制器安装腔内装有控制器，纯氧发生组件紧固于纯氧发生组件凸台，电池的正极、负极分别通过引线连接控制器接入端的正极、负极，纯氧发生组件的阳极导线、阴极导线分别连接控制器输出端的正极、负极，控制器安装有电源开关，上壳盖装于下壳的上端。

Description

自呼吸式电化学制氧机 技术领域
本发明涉及电化学制氧的技术领域，其具体为自呼吸式电化学制氧机。
背景技术
现有的电化学纯氧的制造设备，均需要在电解槽或 / 和电解液的环境中制造，其结构复杂、制造氧气过程繁琐，且制造氧气过程中易造成污染、氧气的纯净度不达标。
技术问题
针对上述问题，本发明提供了自呼吸式电化学制氧机，其结构简单、制造氧气过程简单，制造氧气的过程中无污染，且制造出的氧气纯净度高。
技术解决方案
自呼吸式电化学制氧机，其技术方案是这样的：
其特征在于：其包括外壳体，所述外壳体包括上壳、下壳，所述下壳包括电池安装腔、控制器安装腔、纯氧发生组件安装凸台，所述下壳的侧壁开有透气孔，所述纯氧发生组件凸台开有氧气出气孔，所述氧气出气孔连通外部接头，所述电池安装腔内装有电池，所述控制器安装腔内装有控制器，纯氧发生组件紧固于所述纯氧发生组件凸台，所述电池的正极、负极分别通过引线连接所述控制器接入端的正极、负极，所述纯氧发生组件的阳极导线、阴极导线分别连接所述控制器输出端的正极、负极，所述控制器安装有电源开关，所述上壳盖装于所述下壳的上端。
其进一步特征在于：所述纯氧发生组件包括膜电极组件，所述膜电极组件包括阳极气体扩散层、阳极催化层、质子交换膜、阴极催化层、阴极气体扩散层，所述质子交换膜包括中心部分以及四周外露部分，多孔气体端板、阴极密封框片、所述质子交换膜的四周外露部分、阳极密封框片、氧气端板依次紧固连接，所述氧气端板即为所述纯氧发生组件安装凸台，所述多孔气体端板的正中均布有小孔，所述小孔正对着所述阴极气体扩散层，所述阴极气体扩散层连通外部所述控制器输出端的负极，所述纯氧发生组件安装凸台的中部、侧部开有引线出口，所述阳极气体扩散层通过所述引线出口连接外部的所述控制器输出端的正极；
所述阴极气体扩散层、阴极密封框片、多孔气体端板三者围成的中间阴极空腔内装有阴极集电层，所述阴极气体扩散层连接阴极集电层，所述阴极集电层为导电金属丝绕形成螺旋状或网状，其外端穿过所述多孔气体端板，连接外部所述控制器输出端的负极，所述导电金属丝即为所述阴极导线；所述阳极气体扩散层、阳极密封框片、纯氧发生组件安装凸台三者围成的中间阳极空腔内装有阳极集电层，所述阳极气体扩散层连接所述阳极集电层，所述阳极集电层为导电金属丝绕形成螺旋状或网状，其外端穿过所述引线出口后连接外部所述控制器输出端的的正极，所述导电金属丝即为所述阳极导线，所述阳极集电层和引线出口间的间隙填装有密封胶；
螺丝依次穿过多孔气体端板、阴极密封框片、质子交换膜的四周外露部分、阳极密封框片后紧固于所述纯氧发生组件安装凸台；
所述质子交换膜具体为氢离子交换膜；
所述控制器外接有指示灯。
 有益效果
采用本发明的结构后，开关闭合，控制器将预设的电流输送至纯氧发生组件，纯氧发生组件产生氧气，氧气输送至氧气出气孔，氧气出气孔连通外部接头将氧气输出，其结构简单、制造氧气的过程简单；由于制造氧气的纯氧发生组件被封装于内部，产生的纯氧只能从氧气出气孔输出，制造出的氧气纯净度高；且在制造氧气过程中，只需通入空气和外接电池，其制造氧气的过程中无污染。
附图说明
图 1 为本发明的立体图的装配示意图；
图 2 为本发明下壳的立体图结构示意图；
图 3 为本发明的纯氧发生组件具体装配示意图；
图 4 为本发明中纯氧发生组件中膜电极组件的结构示意放大图。
 本发明的最佳实施方式
本发明的实施方式
其结构见图 1 、图 2 、图 3 、图 4 ，其包括外壳体，外壳体包括上壳 22 、下壳 23 ，上壳 22 和下壳 23 均采用非导电材料，下壳 23 包括电池安装腔 24 、控制器安装腔 25 、纯氧发生组件安装凸台 6 ，下壳 23 的侧壁开有透气孔 27 ，纯氧发生组件安装凸台 6 开有氧气出气孔 28 ，氧气出气孔 28 连通外部接头 29 ，电池安装腔 24 内通过电池弹簧 30 安装有电池 26 ，控制器安装腔 25 内装有控制器 21 ，纯氧发生组件 20 紧固于纯氧发生组件安装凸台 6 ，电池 26 的正极、负极分别通过引线连接控制器 21 接入端的正极 、负极，纯氧发生组件 20 的阳极导线、阴极导线分别连接控制器 21 输出端的正极、负极，控制器 21 安装有电源开关 19 ，上壳 22 盖装于下壳 23 的上端，控制器 21 外接有指示灯 16 ，接头 29 外接软管 8 ；纯氧发生组件 20 包括膜电极组件 1 ，膜电极组件 1 包括阳极气体扩散层 9 、阳极催化层 10 、质子交换膜 11 、阴极催化层 12 、阴极气体扩散层 13 ，质子交换膜 11 包括中心部分以及四周外露部分 14 ，螺丝 7 依次穿过多孔气体端板 5 、阴极密封框片 4 、质子交换膜的四周外露部分 14 、阳极密封框片 15 后、紧固于氧气端板 6 ，多孔气体端板 5 为非导电材料，阴极气体扩散层 13 、阴极密封框片 4 、多孔气体端板 5 三者之间围成有中间阴极空腔，中间阴极空腔内装有阴极集电层 3 ，阴极气体扩散层 13 连接阴极集电层 3 ，阴极集电层 3 为导电金属丝绕形成螺旋状或网状，其金属丝可以为铂丝、金丝、银丝、镀铂丝、镀金丝、镀银丝，阴极集电层 3 外端穿过多孔气体端板 5 ，连接控制器 21 输出端的负极，其中连接阴极集电层 3 和控制器 21 输出端的负极的这段金属丝即为纯氧发生组件 20 的阴极导线，多孔气体端板 5 的正中均布有小孔 17 ，小孔 17 正对着阴极气体扩散层 13 ，阳极气体扩散层 9 、阳极密封框片 15 、纯氧发生组件安装凸台 6 三者围成有中间阳极空腔，中间阳极空腔内装有阳极集电层 2 ，阳极气体扩散层 9 连接阳极集电层 2 ，阳极集电层 2 为导电金属丝绕形成螺旋状或网状，其金属丝可以为铂丝、金丝、银丝、镀铂丝、镀金丝、镀银丝，纯氧发生组件安装凸台 6 的中部、侧部开有引线出口 18 ，阳极集电层 2 外端穿过氧气端板 6 的引线出口 18 连接控制器 21 输出端的正极，其中连接阳极集电层 2 和控制器 21 输出端的正极的金属丝即为纯氧发生组件 20 的阳极导线，阳极集电层 2 和引线出口 18 间的间隙填装有密封胶（属于现有成熟技术、图中未画出）；质子交换膜 11 具体为氢离子交换膜。
其工作原理如下：
首先打开电源开关 19 ，电池 26 与控制器 21 接通后为控制器 21 供电，指示灯 16 亮。控制器 21 输出某一恒定的电流值并加载到自呼吸式电化学纯氧发生组件上，从而产生了氧气，即：空气经由透气孔 27 进入下壳 23 ，再进入多孔气体端板 5 的气体孔、膜电极组件 1 的阴极气体扩散层 13 通过扩散传递的方式被自呼吸到阴极催化层 12 内，电子进入阴极催化层 12 ，在阴极催化层 12 内空气中的氧气与电子以及经由质子交换膜 11 传递来的氢离子发生如下电化学反应，并生成水，即，阴极反应： O2+4H++4e- à 2H2O 。
生成的水依靠浓差扩散方式通过质子交换膜 11 被传递到膜电极组件 1 的阳极催化层 10 中并被分解成氧气、电子和氢离子，即发生如下电化学反应： 2H2O à O2+4H++4e- ，纯氧由此被浓缩而成；在阳极催化层 10 里生成的氢离子在电场力的作用下通过质子交换膜 11 传递到阴极催化层 12 ；在阳极催化层 10 里生成的电子经由阳极气体扩散层 9 ，并最终返回到阴极催化层 12 中；浓缩而成的纯氧通过阳极气体扩散层 9 ，经氧气出气孔 28 传递到接头 29 处，最后通过安装在接头 29 上的连接软管 8 向外释放。
 工业实用性
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Claims (6)

  1. 　　　　　自呼吸式电化学制氧机，其特征在于：其包括外壳体，所述外壳体包括上壳、下壳，所述下壳包括电池安装腔、控制器安装腔、纯氧发生组件安装凸台，所述下壳的侧壁开有透气孔，所述纯氧发生组件凸台开有氧气出气孔，所述氧气出气孔连通外部接头，所述电池安装腔内装有电池，所述控制器安装腔内装有控制器，纯氧发生组件紧固于所述纯氧发生组件凸台，所述电池的正极、负极分别通过引线连接所述控制器接入端的正极、负极，所述纯氧发生组件的阳极导线、阴极导线分别连接所述控制器输出端的正极、负极，所述控制器安装有电源开关，所述上壳盖装于所述下壳的上端。
  2. 根据权利要求1所述的自呼吸式电化学制氧机，其特征在于：所述纯氧发生组件包括膜电极组件，所述膜电极组件包括阳极气体扩散层、阳极催化层、质子交换膜、阴极催化层、阴极气体扩散层，所述质子交换膜包括中心部分以及四周外露部分，多孔气体端板、阴极密封框片、所述质子交换膜的四周外露部分、阳极密封框片、氧气端板依次紧固连接，所述氧气端板即为所述纯氧发生组件安装凸台，所述多孔气体端板的正中均布有小孔，所述小孔正对着所述阴极气体扩散层，所述阴极气体扩散层连通外部所述控制器输出端的负极，所述纯氧发生组件安装凸台的中部、侧部开有引线出口，所述阳极气体扩散层通过所述引线出口连接外部的所述控制器输出端的正极。
  3. 根据权利要求1或2所述的自呼吸式电化学制氧机，其特征在于：所述阴极气体扩散层、阴极密封框片、多孔气体端板三者围成的中间阴极空腔内装有阴极集电层，所述阴极气体扩散层连接阴极集电层，所述阴极集电层为导电金属丝绕形成螺旋状或网状，其外端穿过所述多孔气体端板，连接外部所述控制器输出端的负极，所述导电金属丝即为所述阴极导线；所述阳极气体扩散层、阳极密封框片、纯氧发生组件安装凸台三者围成的中间阳极空腔内装有阳极集电层，所述阳极气体扩散层连接所述阳极集电层，所述阳极集电层为导电金属丝绕形成螺旋状或网状，其外端穿过所述引线出口后连接外部所述控制器输出端的的正极，所述导电金属丝即为所述阳极导线，所述阳极集电层和引线出口间的间隙填装有密封胶。
  4. 根据权利要求3所述的自呼吸式电化学制氧机，其特征在于：螺丝依次穿过多孔气体端板、阴极密封框片、质子交换膜的四周外露部分、阳极密封框片后紧固于所述纯氧发生组件安装凸台。
  5. 根据权利要求4所述的自呼吸式电化学制氧机，其特征在于：所述质子交换膜具体为氢离子交换膜。
  6. 根据权利要求1所述的自呼吸式电化学制氧机，其特征在于：所述控制器外接有指示灯。
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