CN219547112U - An electrolyzer for electrolyzing water to produce hydrogen - Google Patents
An electrolyzer for electrolyzing water to produce hydrogen Download PDFInfo
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- CN219547112U CN219547112U CN202223422709.XU CN202223422709U CN219547112U CN 219547112 U CN219547112 U CN 219547112U CN 202223422709 U CN202223422709 U CN 202223422709U CN 219547112 U CN219547112 U CN 219547112U
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000001257 hydrogen Substances 0.000 title claims abstract description 20
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000007667 floating Methods 0.000 claims description 20
- 239000003014 ion exchange membrane Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 13
- 238000005868 electrolysis reaction Methods 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 abstract description 23
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 7
- 210000005056 cell body Anatomy 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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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
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
技术领域technical field
本实用新型属于电解槽技术领域,具体涉及一种用于电解水制氢的电解槽。The utility model belongs to the technical field of electrolyzers, in particular to an electrolyzer for hydrogen production by electrolyzing water.
背景技术Background technique
电解水制氢的技术成熟,工艺简单,气体纯度高,是目前唯一一种能与可再生能源衔接制氢方式,因此被广泛地应用,现有技术中,用于电解水制氢的电解槽一般是由槽体、阴阳电极、离子交换膜以及各输送管道组成。The technology of hydrogen production by electrolysis of water is mature, the process is simple, and the gas purity is high. It is currently the only method of hydrogen production that can be connected with renewable energy, so it is widely used. In the existing technology, electrolysis for hydrogen production by electrolysis of water The tank is generally composed of tank body, cathode and anode electrodes, ion exchange membrane and various conveying pipelines.
但是现有技术中,用于电解水制氢的电解槽存在以下问题:在槽体内部电解液过多或过少的时候,难以准确提醒工作人员进行及时操作以调整电解液量,且溢流出的电解液难以充分回收,蒸发量较多,存在浪费,并安全性较低。However, in the prior art, there are the following problems in electrolyzers used for electrolyzing water to produce hydrogen: when there is too much or too little electrolyte in the tank, it is difficult to accurately remind the staff to perform timely operations to adjust the amount of electrolyte, and overflow It is difficult to fully recover the electrolyte, and the amount of evaporation is large, there is waste, and the safety is low.
实用新型内容Utility model content
本实用新型的目的就在于为了解决上述问题而提供一种用于电解水制氢的电解槽,旨在解决现有技术中的电解槽,在槽体内部电解液过多或过少的时候,难以准确提醒工作人员进行及时操作以调整电解液量,且溢流出的电解液难以充分回收,蒸发量较多,存在浪费,并安全性较低。The purpose of this utility model is to provide an electrolytic cell for electrolyzing water to produce hydrogen in order to solve the above problems. It is difficult to accurately remind the staff to perform timely operations to adjust the amount of electrolyte, and the overflowed electrolyte is difficult to fully recover, the amount of evaporation is large, there is waste, and the safety is low.
本实用新型通过以下技术方案来实现上述目的:The utility model realizes above-mentioned purpose through following technical scheme:
一种用于电解水制氢的电解槽,包括内槽体,所述内槽体外部设有外槽体,所述内槽体和外槽体之间留有回收腔,所述外槽体内部设有用于支撑内槽体的支撑板,所述内槽体上设有进液管,所述内槽体两侧壁上均开设有溢流孔,所述内槽体两侧壁上均设有滑动组件,所述内槽体两侧壁上位于溢流孔上下两方均设有压力传感器,所述压力传感器连接有控制器,所述控制器连接有至少四个蜂鸣器,所述内槽体和外槽体之间设有回收组件;An electrolytic cell for electrolyzing water to produce hydrogen, comprising an inner cell body, an outer cell body is provided outside the inner cell body, a recovery cavity is left between the inner cell body and the outer cell body, and the outer cell body The inside is provided with a support plate for supporting the inner tank body, the inner tank body is provided with a liquid inlet pipe, and overflow holes are opened on both side walls of the inner tank body, and both sides of the inner tank body are provided with overflow holes. A sliding assembly is provided, pressure sensors are arranged on both sides of the inner tank body above and below the overflow hole, the pressure sensors are connected to a controller, and the controller is connected to at least four buzzers. A recovery component is arranged between the inner tank body and the outer tank body;
所述滑动组件包括与内槽体内壁通过滑动件滑动连接的浮板、分别设于浮板顶部和底部的抵板;The sliding assembly includes a floating plate slidingly connected to the inner wall of the inner tank through a sliding piece, and abutting plates respectively arranged on the top and bottom of the floating plate;
所述回收组件包括设于支撑板上的网板、设于外槽体底部通过三通接头与进液管相连接的回收管、设于回收管上的回收泵。The recovery assembly includes a net plate arranged on the support plate, a recovery pipe arranged at the bottom of the outer tank body connected to the liquid inlet pipe through a three-way joint, and a recovery pump arranged on the recovery pipe.
作为本实用新型的进一步优化方案,所述压力传感器的信号输出端与控制器的信号输入端相连接,所述控制器的信号输出端与蜂鸣器的信号输入端相连接,所述压力传感器与蜂鸣器一一对应。As a further optimization scheme of the present utility model, the signal output end of the pressure sensor is connected with the signal input end of the controller, the signal output end of the controller is connected with the signal input end of the buzzer, and the pressure sensor One-to-one correspondence with the buzzer.
作为本实用新型的进一步优化方案,所述外槽体底部为漏斗状,所述浮板中部为凸起状,所述回收管上位于回收泵的输入端设有第一控制阀,所述进液管上位于三通接头的输入端设有第二控制阀。As a further optimization scheme of the utility model, the bottom of the outer tank body is funnel-shaped, the middle part of the floating plate is convex, and the recovery pipe is provided with a first control valve at the input end of the recovery pump. A second control valve is arranged at the input end of the three-way joint on the liquid pipe.
作为本实用新型的进一步优化方案,所述滑动件包括设于浮板前后两侧以及浮板与内槽体内侧壁相贴合的一侧上的滑块、开设在内槽体内壁上供滑块滑动的滑槽。As a further optimization solution of the present utility model, the sliding part includes sliders arranged on the front and rear sides of the floating plate and on the side where the floating plate fits with the inner wall of the inner tank body, and provided on the inner wall of the inner tank for sliding The chute on which the blocks slide.
作为本实用新型的进一步优化方案,所述内槽体内部设有离子交换膜,所述内槽体内部设有两个电极,所述离子交换膜位于两个电极之间,所述离子交换膜位于两个溢流孔之间。As a further optimization scheme of the present utility model, an ion exchange membrane is provided inside the inner tank body, two electrodes are arranged inside the inner tank body, the ion exchange membrane is located between the two electrodes, and the ion exchange membrane Located between two overflow holes.
作为本实用新型的进一步优化方案,所述内槽体和外槽体之间设有至少一个加固环,所述加固环包括两个分别于设于内槽体外壁、外槽体内壁上的环形板,若干个设于两个环形板之间的连接块。As a further optimization scheme of the present invention, at least one reinforcement ring is provided between the inner tank body and the outer tank body, and the reinforcement ring includes two annular rings respectively arranged on the outer wall of the inner tank and the inner wall of the outer tank. Plate, several connecting blocks arranged between two annular plates.
作为本实用新型的进一步优化方案,所述内槽体上位于离子交换膜两侧均设有气体收集管道,所述内槽体上设有排液管,所述气体收集管道和排液管上均设有第三控制阀。As a further optimization scheme of the present utility model, gas collection pipes are arranged on both sides of the ion exchange membrane on the inner tank body, a liquid discharge pipe is provided on the inner tank body, and a gas collection pipe and a liquid discharge pipe are arranged on the inner tank body. All are equipped with a third control valve.
作为本实用新型的进一步优化方案,所述外槽体底部设有底座。As a further optimization solution of the present invention, a base is provided at the bottom of the outer tank body.
本实用新型的有益效果在于:The beneficial effects of the utility model are:
1)本实用新型中滑动组件随着电解液液面升降而上下移动,抵压着位于上下方位置的压力传感器,并通过控制器启动对应的蜂鸣器响起,从而准确提醒工作人员进行添加或停止输送电解液,操作方便,且溢流孔可以将内槽体内部多余的电解液排至回收腔内,并通过回收组件回收并输送回内槽体内部循环使用,充分回收,减少蒸发量,不产生浪费并提高安全性;1) In the utility model, the sliding assembly moves up and down with the rise and fall of the electrolyte liquid level, presses against the pressure sensor located at the upper and lower positions, and activates the corresponding buzzer through the controller to sound, thereby accurately reminding the staff to add or Stop transporting the electrolyte, easy to operate, and the overflow hole can discharge the excess electrolyte inside the inner tank to the recovery chamber, and recover it through the recovery component and transport it back to the inner tank for recycling, fully recover and reduce evaporation. No waste and increased safety;
2)本实用新型通过在内槽体外部设置外槽体,通过外槽体对内槽体形成保护,并通过加固环增加内槽体和外槽体之间的连接稳定性,以便于使用。2) In the utility model, an outer tank is provided outside the inner tank to protect the inner tank through the outer tank, and the connection stability between the inner tank and the outer tank is increased through a reinforcing ring for ease of use.
附图说明Description of drawings
图1是本实用新型的整体结构示意图。Fig. 1 is a schematic diagram of the overall structure of the utility model.
图2是本实用新型的内槽体和外槽体的剖视图。Fig. 2 is a sectional view of the inner tank body and the outer tank body of the present invention.
图3是本实用新型的滑动组件的侧视图。Fig. 3 is a side view of the sliding assembly of the present invention.
图4是本实用新型的加固环的俯视图。Fig. 4 is a top view of the reinforcing ring of the present invention.
图中:1、内槽体;2、外槽体;3、支撑板;4、电极;5、离子交换膜;6、溢流孔;7、浮板;8、滑块;9、滑槽;9、弹性支撑件;91、支撑筒;92、弹簧;93、支撑柱;10、抵板;11、压力传感器;12、蜂鸣器;13、网板;14、回收管;15、回收泵;16、进液管;17、气体收集管道;18、排液管;19、加固环;191、环形板;192、连接块;20、底座;21、控制器。In the figure: 1. Inner tank body; 2. Outer tank body; 3. Support plate; 4. Electrode; 5. Ion exchange membrane; 6. Overflow hole; 7. Floating plate; 8. Slider; 9. Chute ; 9, elastic support member; 91, support tube; 92, spring; 93, support column; 10, arrival plate; 11, pressure sensor; 12, buzzer; Pump; 16, liquid inlet pipe; 17, gas collection pipe; 18, liquid discharge pipe; 19, reinforcement ring; 191, annular plate; 192, connection block; 20, base; 21, controller.
具体实施方式Detailed ways
下面结合附图对本申请作进一步详细描述,有必要在此指出的是,以下具体实施方式只用于对本申请进行进一步的说明,不能理解为对本申请保护范围的限制,该领域的技术人员可以根据上述申请内容对本申请作出一些非本质的改进和调整。The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and cannot be interpreted as limiting the protection scope of the application. The above application content makes some non-essential improvements and adjustments to this application.
如图1-4所示,一种用于电解水制氢的电解槽,包括内槽体1,所述内槽体1外部设有外槽体2,所述内槽体1和外槽体2之间留有回收腔,所述外槽体2内部设有用于支撑内槽体1的支撑板3,所述内槽体1上设有进液管16,所述内槽体1两侧壁上均开设有溢流孔6,所述内槽体1两侧壁上均设有滑动组件,所述内槽体1两侧壁上位于溢流孔6上下两方均设有压力传感器11,所述压力传感器11连接有控制器21,所述控制器21连接有至少四个蜂鸣器12,所述内槽体1和外槽体2之间设有回收组件;As shown in Figures 1-4, an electrolyzer for producing hydrogen by electrolyzing water includes an inner tank body 1, an outer tank body 2 is arranged on the outside of the inner tank body 1, and the inner tank body 1 and the outer tank body 2, there is a recovery cavity, and the outer tank body 2 is provided with a support plate 3 for supporting the inner tank body 1, and the inner tank body 1 is provided with a liquid inlet pipe 16, and the inner tank body 1 on both sides Overflow holes 6 are opened on the walls, sliding assemblies are provided on both side walls of the inner tank body 1, and pressure sensors 11 are arranged on the upper and lower sides of the overflow hole 6 on both side walls of the inner tank body 1 , the pressure sensor 11 is connected to a controller 21, the controller 21 is connected to at least four buzzers 12, and a recovery assembly is arranged between the inner tank body 1 and the outer tank body 2;
所述滑动组件包括与内槽体1内壁通过滑动件滑动连接的浮板7、分别设于浮板7顶部和底部的抵板10;The sliding assembly includes a floating plate 7 slidingly connected to the inner wall of the inner tank body 1 through a sliding member, and abutting plates 10 respectively arranged on the top and bottom of the floating plate 7;
所述回收组件包括设于支撑板3上的网板13、设于外槽体2底部通过三通接头与进液管16相连接的回收管14、设于回收管14上的回收泵15。The recovery assembly includes a mesh plate 13 on the support plate 3 , a recovery pipe 14 connected to the liquid inlet pipe 16 at the bottom of the outer tank 2 through a three-way joint, and a recovery pump 15 on the recovery pipe 14 .
进一步地,所述压力传感器11的信号输出端与控制器21的信号输入端相连接,所述控制器21的信号输出端与蜂鸣器12的信号输入端相连接,所述压力传感器11与蜂鸣器12一一对应。Further, the signal output end of the pressure sensor 11 is connected to the signal input end of the controller 21, the signal output end of the controller 21 is connected to the signal input end of the buzzer 12, and the pressure sensor 11 is connected to the signal input end of the buzzer 12. The buzzers 12 are in one-to-one correspondence.
进一步地,所述外槽体2底部为漏斗状,所述浮板7中部为凸起状,所述回收管14上位于回收泵15的输入端设有第一控制阀,所述进液管16上位于三通接头的输入端设有第二控制阀,外槽体2底部设置为漏斗状是为了更好地聚集溢出的电解液,从而回收至内槽体1内部。Further, the bottom of the outer tank body 2 is funnel-shaped, the middle part of the floating plate 7 is convex, and the recovery pipe 14 is provided with a first control valve at the input end of the recovery pump 15. The liquid inlet pipe 16 is located at the input end of the three-way joint and is provided with a second control valve. The bottom of the outer tank body 2 is set in a funnel shape in order to better collect the overflowed electrolyte, so as to be recycled to the inside of the inner tank body 1 .
在使用的时候,通过进液管16向内槽体1内部输入电解液,浮板7会在电解液液体的浮力作用下随着液面上移,当内槽体1内部电解液较多的时候,位于浮板7顶部的抵板10抵压位于上方的压力传感器11,该压力传感器11会将所检测的压力值输送至控制器21,当该压力传感器11所受到的压力到达目标设定值的时候,控制器21会控制与该压力传感器11相对应的蜂鸣器12响起,从而起到提醒工作人员不再输入电解液,其中,多余的电解液便会从溢流孔6流出,随着电解反应的发生,在不补充电解液的前提下,内槽体1内部的电解液会越来越少,浮板7也会随着液面下降而下降,当位于浮板7底部的抵板10抵压位于下方的压力传感器11,该压力传感器11会将所检测的压力值输送至控制器21,当该压力传感器11所受到的压力到达目标设定值的时候,控制器21会控制与该压力传感器11相对应的蜂鸣器12响起,从而起到提醒工作人员不再输入电解液,根据响起的蜂鸣器12不同,来进行具体操作,操作更方便,关闭进液管16上的第二控制阀,开启回收管14上的第一控制阀,启动回收泵15,即可将内槽体1和外槽体2之间的回收腔内部的电解液输送回内槽体1内部循环使用,本实用新型中滑动组件随着电解液液面升降而上下移动,抵压着位于上下方位置的压力传感器11,并通过控制器21启动对应的蜂鸣器响起,从而准确提醒工作人员进行添加或停止输送电解液,操作方便,且溢流孔6可以将内槽体1内部多余的电解液排至回收腔内,并通过回收组件回收并输送回内槽体1内部循环使用,充分回收,减少蒸发量,不产生浪费并提高安全性。When in use, the electrolyte solution is input into the inner tank body 1 through the liquid inlet pipe 16, and the floating plate 7 will move with the liquid level under the buoyancy of the electrolyte liquid. At this time, the counter plate 10 at the top of the floating plate 7 presses against the pressure sensor 11 located above, and the pressure sensor 11 will send the detected pressure value to the controller 21. When the pressure received by the pressure sensor 11 reaches the target setting value, the controller 21 will control the buzzer 12 corresponding to the pressure sensor 11 to sound, so as to remind the staff not to input the electrolyte, wherein the excess electrolyte will flow out from the overflow hole 6, With the occurrence of the electrolysis reaction, under the premise of not supplementing the electrolyte, the electrolyte in the inner tank 1 will become less and less, and the floating plate 7 will also drop as the liquid level drops. The supporting plate 10 presses against the pressure sensor 11 located below, and the pressure sensor 11 will send the detected pressure value to the controller 21, and when the pressure received by the pressure sensor 11 reaches the target set value, the controller 21 will Control the buzzer 12 corresponding to the pressure sensor 11 to sound, so as to remind the staff not to input the electrolyte, and perform specific operations according to the sound of the buzzer 12, the operation is more convenient, and the liquid inlet pipe 16 is closed Open the second control valve on the recovery pipe 14, start the recovery pump 15, then the electrolyte in the recovery chamber between the inner tank body 1 and the outer tank body 2 can be transported back to the inner tank body 1 The internal cycle is used. In the utility model, the sliding assembly moves up and down with the rise and fall of the electrolyte liquid level, presses against the pressure sensor 11 located at the upper and lower positions, and starts the corresponding buzzer to sound through the controller 21, thereby accurately reminding the work It is convenient for personnel to add or stop transporting the electrolyte, and the overflow hole 6 can discharge the excess electrolyte inside the inner tank 1 into the recovery chamber, and recover it through the recovery component and transport it back to the inner tank 1 for recycling. Full recovery, less evaporation, no waste and increased safety.
进一步的,所述滑动件包括设于浮板7前后两侧以及浮板7与内槽体1内侧壁相贴合的一侧上的滑块8、开设在内槽体1内壁上供滑块8滑动的滑槽9,通过滑块8和滑槽9限制浮板7、抵板10的移动范围。Further, the sliders include sliders 8 located on the front and rear sides of the floating plate 7 and on the side where the floating plate 7 fits with the inner side wall of the inner tank body 1, provided on the inner wall of the inner tank body 1 for the sliders to 8 sliding chute 9, through the slider 8 and the chute 9 limit the range of movement of the floating plate 7, butt plate 10.
在本实施例中,所述内槽体1内部设有离子交换膜5,所述内槽体1内部设有两个电极4,所述离子交换膜5位于两个电极4之间,所述离子交换膜5位于两个溢流孔6之间,其中一个电极4为阳极电极,另一个电极4为阴极电极,阳极电极和阴极电极的反应剧烈程度不同,因此在两侧均设置了溢流孔6。In this embodiment, the inner tank body 1 is provided with an ion exchange membrane 5, and the inner tank body 1 is provided with two electrodes 4, and the ion exchange membrane 5 is located between the two electrodes 4. The ion exchange membrane 5 is located between the two overflow holes 6, one of the electrodes 4 is the anode electrode, and the other electrode 4 is the cathode electrode. The reaction intensity of the anode electrode and the cathode electrode is different, so overflow holes are set on both sides. Hole 6.
在本实施例中,所述内槽体1和外槽体2之间设有至少一个加固环19,所述加固环19包括两个分别于设于内槽体1外壁、外槽体2内壁上的环形板191,若干个设于两个环形板191之间的连接块192,通过加固环19加强内槽体1和外槽体2之间的稳定性。In this embodiment, at least one reinforcement ring 19 is provided between the inner tank body 1 and the outer tank body 2, and the reinforcement ring 19 includes two rings respectively arranged on the outer wall of the inner tank body 1 and the inner wall of the outer tank body 2. The upper annular plate 191 and several connecting blocks 192 arranged between the two annular plates 191 strengthen the stability between the inner tank body 1 and the outer tank body 2 through the reinforcement ring 19 .
在本实施例中,所述内槽体1上位于离子交换膜5两侧均设有气体收集管道17,所述内槽体1上设有排液管18,所述气体收集管道17和排液管18上均设有第三控制阀,气体收集管道17是用于输出气体的,两个气体收集管道17分别是用于输出氢气和输出氧气的,输出氢气的气体收集管道17与外界的氢气收集装置连接,输送氧气的气体收集管道17与外界的氧气收集装置连接。In this embodiment, the inner tank body 1 is provided with gas collection pipes 17 on both sides of the ion exchange membrane 5, the inner tank body 1 is provided with a drain pipe 18, and the gas collection pipe 17 and the drain pipe The third control valve is provided on the liquid pipe 18, the gas collection pipe 17 is used to output gas, and the two gas collection pipes 17 are respectively used to output hydrogen and oxygen, and the gas collection pipe 17 for outputting hydrogen is connected with the outside world. The hydrogen gas collection device is connected, and the gas collection pipeline 17 for transporting oxygen is connected with an external oxygen collection device.
在本实施例中,所述外槽体2底部设有底座20,通过底座20支撑着外槽体2。In this embodiment, a base 20 is provided at the bottom of the outer tank body 2 , and the outer tank body 2 is supported by the base 20 .
以上所述实施例仅表达了本实用新型的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本实用新型专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本实用新型构思的前提下,还可以做出若干变形和改进,这些都属于本实用新型的保护范围。The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.
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