CN109280935B - Hydrogen production device - Google Patents
Hydrogen production device Download PDFInfo
- Publication number
- CN109280935B CN109280935B CN201811361571.2A CN201811361571A CN109280935B CN 109280935 B CN109280935 B CN 109280935B CN 201811361571 A CN201811361571 A CN 201811361571A CN 109280935 B CN109280935 B CN 109280935B
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- raw material
- water tank
- port
- cooling device
- hydrogen
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 55
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 55
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000002994 raw material Substances 0.000 claims abstract description 63
- 238000001816 cooling Methods 0.000 claims abstract description 61
- 239000010865 sewage Substances 0.000 claims abstract description 31
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000000746 purification Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000009833 condensation Methods 0.000 claims abstract description 13
- 230000005494 condensation Effects 0.000 claims abstract description 13
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 2
- 239000000243 solution Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 7
- 239000003513 alkali Substances 0.000 description 6
- 239000012670 alkaline solution Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000006392 deoxygenation reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The hydrogen production device comprises a raw material water tank, an electrolysis device, a purification system and a sewage disposal system, wherein the electrolysis device is connected between the raw material water tank and the purification system, the raw material water tank is used for providing raw materials for the electrolysis device, the electrolysis device is used for preparing raw material hydrogen, the purification system comprises a deoxidization device, a condensation device, a cooling device and a drying device, one end of the deoxidization device is connected with the electrolysis device, the other end of the deoxidization device is connected with one end of the condensation device, the other end of the condensation device is connected with one end of the cooling device, the other end of the cooling device is connected with the drying device, and the raw material hydrogen enters the drying device after being processed by the deoxidization device, the condensation device and the cooling device in sequence, so that finished product hydrogen is obtained; one end of the sewage disposal system is connected with the condensing device, the other end of the sewage disposal system is connected with the cooling device, the raw material water tank is also connected with the cooling device, and liquid in the raw material water tank circularly enters and exits the cooling device to serve as a cold source of the cooling device.
Description
Technical Field
The invention relates to a hydrogen production device.
Background
With the increasing exhaustion of traditional fossil energy sources and the deterioration of environment, green and clean new energy utilization is increasingly receiving attention from various countries. The hydrogen only generates water due to combustion, does not pollute the environment, has high heat release efficiency, can be applied to direct power generation of a fuel cell, and is recognized as a very important clean energy source. In the existing water electrolysis hydrogen production device, a cold source provided by the outside is needed, and the problem of high production and maintenance cost exists in practical application. Meanwhile, there is also a pollution discharge problem.
Disclosure of Invention
In view of this, there is a need for a hydrogen production apparatus that does not require the use of an external cold source.
The hydrogen production device comprises a raw material water tank, an electrolysis device, a purification system and a sewage disposal system, wherein the electrolysis device is connected between the raw material water tank and the purification system, the raw material water tank is used for providing raw materials for the electrolysis device, the electrolysis device is used for preparing raw material hydrogen, the purification system comprises a deoxidization device, a condensation device, a cooling device and a drying device, one end of the deoxidization device is connected with the electrolysis device and is used for removing impurity oxygen in the raw material hydrogen, the other end of the deoxidization device is connected with one end of the condensation device, the other end of the condensation device is connected with one end of the cooling device, the other end of the cooling device is connected with the drying device, and the raw material hydrogen sequentially passes through the deoxidization device, the condensation device and the cooling device and then enters the drying device to obtain finished product hydrogen; one end of the sewage disposal system is connected with the condensing device, the other end of the sewage disposal system is connected with the cooling device, wherein the raw material water tank is also connected with the cooling device, and liquid in the raw material water tank circularly enters and exits the cooling device to be used as a cold source of the cooling device.
In summary, the hydrogen production device improves the raw material water tank, connects the raw material water tank with the cooling device, and provides a cold source for the cooling device without providing a cold source from the outside.
Drawings
FIG. 1 is a schematic block diagram of a hydrogen plant in accordance with a preferred embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of a raw material water tank of a hydrogen plant in accordance with a preferred embodiment of the present invention.
Description of the main reference signs
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to FIG. 1, a preferred embodiment of the present invention provides a hydrogen production apparatus 100. The hydrogen production apparatus 100 is used to produce finished hydrogen.
The hydrogen plant 100 includes a raw water tank 10, an electrolyzer 20, a purification system 30, and a blowdown system 50.
Referring to fig. 2, the raw water tank 10 includes an alkali filling port 101, a water inlet 102, an output end 103, an alkali supplementing port 104 and a water supplementing port 105. Wherein, the alkali solution and the aqueous solution respectively enter the raw material water tank 10 through the alkali injection port 101 and the water inlet 102.
The electrolyzer 20 is used to produce raw hydrogen. Wherein one end of the electrolysis device 20 is connected to the output end 103. The raw material water tank 10 supplies raw material for electrolytic hydrogen production to the electrolytic device 20 through the output end 103. It will be appreciated that in the electrolysis reaction, although the alkaline solution does not participate in the reaction, in practice, the hydrogen gas as the raw material will carry away part of the alkaline solution when leaving the electrolysis device 20, so that the alkaline solution needs to be timely replenished into the raw material water tank 10 through the alkaline replenishing port 104, so as to ensure that the raw material water tank 10 can timely replenish the alkaline solution for the electrolysis device 20. Meanwhile, in the electrolysis reaction, the water solution is consumed by electrolysis and carried away from the electrolysis device 20 by the raw material hydrogen, so that the water solution needs to be timely replenished into the raw material water tank 10 through the water replenishing port 105, so that the raw material water tank 10 can timely replenish the water solution for the electrolysis device 20.
The other end of the electrolyzer 20 is also connected to the purification system 30.
The purification system 30 includes a deoxygenation device 304, a condensation device 306, a cooling device 308, and a filtration device 305.
In this embodiment, the purification system 30 further comprises a separation device 302.
One end of the separation device 302 is connected to the electrolysis device 20. Wherein the raw material hydrogen gas produced by the electrolysis apparatus 20 enters the separation apparatus 302 to be separated, so as to separate an aqueous solution and the like carried in the raw material hydrogen gas.
The deoxygenation device 304 is coupled to the other end of the separation device 302. Wherein, the raw material hydrogen separated by the separation device 302 enters the deoxidizing device 304 for deoxidizing treatment, so as to remove the impurity oxygen in the raw material hydrogen.
The condensing unit 306 includes a first connection 3061, a second connection 3063, and a third connection 3065.
The first connection 3061 connects to the deoxygenation device 304. The raw material hydrogen processed by the deoxidizing device 304 enters the condensing device 306 through the first connecting end 3061 to be condensed, so as to condense out the moisture in the raw material hydrogen.
The second connection 3063 connects to the drain 50. Wherein moisture generated via the condensing unit 306 enters the sewage system 50 through the second connection end 3063.
The third connection 3065 connects the cooling device 308. Wherein the raw hydrogen gas processed by the condensing unit 306 enters the cooling unit 308 through the third connecting end 3065.
The cooling device 308 includes a first port 3081, a second port 3082, and a third port 3083.
The first port 3081 is connected to a third connection 3065 of the condensing unit 306.
The second port 3082 connects to the drain 50. In this embodiment, the drain system 50 includes a drain 501. The drain 501 includes a first drain end 5011 and a second drain end 5013. The first blowdown end 5011 is connected to the second connection end 3063 of the condensing unit 306. The second blowdown end 5013 is connected to the second port 3082.
The third port 3083 is connected to the filter device 305. The raw hydrogen processed by the cooling device 308 enters the filtering device 305 through the third port 3083 for filtering treatment, so as to remove particulate impurities in the raw hydrogen, thereby obtaining the finished hydrogen. Wherein, the filter device 305 is further provided with a vent for venting hydrogen.
It will be appreciated that in other implementations, whether the filtering device 305 is provided may be selected based on actual requirements.
In this embodiment, the purification system 30 further comprises a drying device 303. The drying device 303 is connected between the cooling device 308 and the filtering device 305.
Further, in this embodiment, hydrogen-producing device 100 also includes a pressure stabilizing device 70. The pressure stabilizing device 70 is connected to the filtering device 305 for ensuring the pressure stability of the system when discharging the product hydrogen.
Further, in this embodiment, the raw water tank 10 is further connected to a cooling device 308 to provide a cold source for the cooling device 308. Wherein the cooling device 308 uses the liquid provided by the raw material water tank 10 as a cold source, and no cold source is provided from the outside.
Specifically, the cooling device 308 further includes a fourth port 3084 and a fifth port 3085. The raw water tank 10 further comprises a return water port 107 and a water outlet port 108. The fourth port 3084 is connected to the return water port 107, and the fifth port 3085 is connected to the water outlet 108. Wherein the liquid in the raw water tank 10 enters the cooling device 308 through the water outlet 108 from the fifth port 3085 to exchange heat with the product in the cooling device 308, so that the temperature of the liquid rises. Then, the liquid heated after heat exchange enters the raw material water tank 10 through the fourth port 3084 from the return water port 107. Then, after the heated liquid is circularly cooled in the raw material water tank 10, the heated liquid continuously enters the cooling device 308 through the water outlet 108 from the fifth port 3085, and is circularly discharged and discharged in such a way, so as to continuously provide a cold source for the cooling device 308, thereby realizing the cooling work of the cooling device 308 and further achieving the purpose of not providing the cold source outside.
It will be appreciated that during installation of the hydrogen plant 100, the water outlet 108 of the raw water tank 10 and the cooling device 308 are arranged in such a way that the liquid in the raw water tank 10 enters the cooling device 308 due to the liquid level difference. For example, the raw water tank 10 is disposed above the cooling device 308, and the water outlet 108 is ensured to be located above the cooling device 308, so that the liquid in the raw water tank 10 enters the cooling device 308 through the fifth port 3085 through the water outlet 108 and fills up by using the height difference.
In this embodiment, the raw water tank 10 is further connected to the sewage draining device 501 to achieve zero emission of the hydrogen production device 100.
Specifically, the raw water tank 10 further includes a drain port 106 and a drain port 109. The drain 501 also includes a third drain end 5015. The drain port 109 is connected to the third drain port 5015. After the waste collected by the sewage draining device 501 enters the raw material water tank 10 through the third sewage draining end 5015 via the liquid draining port 109 for treatment, the solution therein may be used as a cold source to participate in the cooling operation of the cooling device 308, and the gas therein is discharged through the air discharging port 106. Wherein a flame arrester (not shown) is disposed at the vent 106.
Further, in this embodiment, the sewage draining system 50 further includes a buffering device 503. One end of the buffer device 503 is connected to the third sewage draining end 5015, and the other end is connected to the liquid draining port 109, so as to buffer and depressurize the waste discharged from the sewage draining device 501, and then discharge the waste into the raw material water tank 10, so as to ensure that the internal pressure of the raw material water tank 10 is stable.
It will be appreciated that in other embodiments, a water-gas separation device (not shown) may be provided between the condensing unit 306 and the drain 501 and/or between the cooling unit 308 and the drain 501 to more thoroughly separate the liquid water entrained in the gas.
The operation of hydrogen plant 100 will now be described in detail.
First, an alkali solution and an aqueous solution are injected into the raw material water tank 10 through the alkali injection port 101 and the water inlet port 102, respectively.
Then, the raw material water tank 10 inputs the alkaline solution and the aqueous solution to the electrolysis device 20 through the output terminal 103, and generates raw material hydrogen after the electrolysis reaction. The raw material hydrogen sequentially passes through a separation device 302 and a deoxidizing device 304, and enters a condensing device 306 to be condensed so as to condense out the moisture in the raw material hydrogen. Wherein moisture generated via the condensing unit 306 enters the waste unit 501 from the first waste end 5011 through the second connection end 3063. The raw hydrogen gas after being processed by the condensing unit 306 enters the cooling unit 308 through the third connecting end 3065.
Then, the raw material hydrogen after the treatment is sequentially passed through a drying device 303 and a filtering device 305, and is passed through a pressure stabilizing device 70 to obtain the finished product hydrogen.
In summary, the hydrogen production apparatus 100 improves the raw water tank 10, connects the raw water tank 10 with the cooling device 308, and provides a cold source for the cooling device 308 without providing a cold source from the outside. In addition, the raw water tank 10 is further connected to the sewage draining system 50, so that the waste collected by the sewage draining system 50 is discharged to the raw water tank 10 for treatment, and the treated solution is provided as a cold source to the cooling device 308, thereby realizing zero discharge of the hydrogen production device 100.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and substance of the technical solution of the present invention.
Claims (5)
1. The hydrogen production device comprises a raw material water tank, an electrolysis device, a purification system and a sewage disposal system, and is characterized in that the electrolysis device is connected between the raw material water tank and the purification system, the raw material water tank provides raw materials for the electrolysis device, the electrolysis device is used for preparing raw material hydrogen, the purification system comprises a deoxidization device, a condensation device, a cooling device and a drying device, one end of the deoxidization device is connected with the electrolysis device and is used for removing impurity oxygen in the raw material hydrogen, the other end of the deoxidization device is connected with one end of the condensation device, the other end of the condensation device is connected with one end of the cooling device, the other end of the cooling device is connected with the drying device, and the raw material hydrogen sequentially passes through the deoxidization device, the condensation device and the cooling device and then enters the drying device to obtain finished product hydrogen; one end of the sewage disposal system is connected with the condensing device, the other end of the sewage disposal system is connected with the cooling device, wherein the raw material water tank is also connected with the cooling device, liquid in the raw material water tank is circulated into and out of the cooling device to serve as a cold source of the cooling device, and the raw material water tank is also connected with the sewage disposal system, so that waste collected by the sewage disposal system flows to the raw material water tank;
the sewage draining system comprises a sewage draining device and a buffer device, wherein the sewage draining device comprises a first sewage draining end, a second sewage draining end and a third sewage draining end, the first sewage draining end is connected with the condensing device, the second sewage draining end is connected with the cooling device, the third sewage draining end is connected with the raw material water tank, one end of the buffer device is connected with the third sewage draining end, and the other end of the buffer device is connected with the raw material water tank;
the raw material water tank further comprises a water return port and a water outlet, the cooling device comprises a first port, a second port, a third port, a fourth port and a fifth port, the first port is connected with the condensing device, the second port is connected with the sewage disposal system, the third port is connected with the drying device, the fourth port is connected with the water return port, the fifth port is connected with the water outlet, wherein liquid in the raw material water tank enters the cooling device through the water outlet from the fifth port, and then enters the raw material water tank through the water return port from the fourth port, and the liquid enters and exits in the cooling device in a circulating mode to continuously provide a cold source for the cooling device.
2. The hydrogen plant of claim 1, wherein the purification system further comprises a filtration device coupled to the drying device.
3. The hydrogen plant of claim 2, further comprising a pressure stabilizing device coupled to the filtering device.
4. The hydrogen plant of claim 1 wherein the water outlet of the feed water tank and the cooling device are positioned such that liquid from the feed water tank enters the cooling device by a liquid level difference.
5. The hydrogen plant of claim 1, wherein the feed water tank further comprises a vent for venting hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361571.2A CN109280935B (en) | 2018-11-15 | 2018-11-15 | Hydrogen production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361571.2A CN109280935B (en) | 2018-11-15 | 2018-11-15 | Hydrogen production device |
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| Publication Number | Publication Date |
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| CN109280935A CN109280935A (en) | 2019-01-29 |
| CN109280935B true CN109280935B (en) | 2024-03-15 |
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| CN201811361571.2A Active CN109280935B (en) | 2018-11-15 | 2018-11-15 | Hydrogen production device |
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| CN104627963A (en) * | 2015-01-19 | 2015-05-20 | 苏州竞立制氢设备有限公司 | Water electrolysis hydrogen purification method and device for implementing water electrolysis hydrogen purification method |
| WO2016150168A1 (en) * | 2015-03-20 | 2016-09-29 | 国家电网公司 | Solar optothermal coupled high-temperature water electrolysis hydrogen production system |
| CN106099143A (en) * | 2016-06-23 | 2016-11-09 | 武汉理工大学 | A kind of fuel cell system alleviating battery water logging |
| CN106119885A (en) * | 2016-07-26 | 2016-11-16 | 扬州中电制氢设备有限公司 | A kind of aqueous slkali electrolysis hydrogen production device and hydrogen production process |
| CN205710938U (en) * | 2016-06-21 | 2016-11-23 | 天津市大陆制氢设备有限公司 | A kind of condensation water recovery system of hydrogen production plant by water electrolysis |
| CN107017633A (en) * | 2017-04-11 | 2017-08-04 | 赫普热力发展有限公司 | The system that a kind of electrolytic hydrogen production is combined with water-power plant |
| CN209114000U (en) * | 2018-11-15 | 2019-07-16 | 深圳市凯豪达氢能源有限公司 | Device for producing hydrogen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6706820B2 (en) * | 2015-12-07 | 2020-06-10 | パナソニックＩｐマネジメント株式会社 | Hydrogen generation system and fuel cell system |
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2018
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104627963A (en) * | 2015-01-19 | 2015-05-20 | 苏州竞立制氢设备有限公司 | Water electrolysis hydrogen purification method and device for implementing water electrolysis hydrogen purification method |
| WO2016150168A1 (en) * | 2015-03-20 | 2016-09-29 | 国家电网公司 | Solar optothermal coupled high-temperature water electrolysis hydrogen production system |
| CN205710938U (en) * | 2016-06-21 | 2016-11-23 | 天津市大陆制氢设备有限公司 | A kind of condensation water recovery system of hydrogen production plant by water electrolysis |
| CN106099143A (en) * | 2016-06-23 | 2016-11-09 | 武汉理工大学 | A kind of fuel cell system alleviating battery water logging |
| CN106119885A (en) * | 2016-07-26 | 2016-11-16 | 扬州中电制氢设备有限公司 | A kind of aqueous slkali electrolysis hydrogen production device and hydrogen production process |
| CN107017633A (en) * | 2017-04-11 | 2017-08-04 | 赫普热力发展有限公司 | The system that a kind of electrolytic hydrogen production is combined with water-power plant |
| CN209114000U (en) * | 2018-11-15 | 2019-07-16 | 深圳市凯豪达氢能源有限公司 | Device for producing hydrogen |
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| CN109280935A (en) | 2019-01-29 |
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