CN217869106U - Electrolytic hydrogen production device - Google Patents
Electrolytic hydrogen production device Download PDFInfo
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- CN217869106U CN217869106U CN202221986677.3U CN202221986677U CN217869106U CN 217869106 U CN217869106 U CN 217869106U CN 202221986677 U CN202221986677 U CN 202221986677U CN 217869106 U CN217869106 U CN 217869106U
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- hydrogen
- hydrogen production
- power supply
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- oxygen
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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
The utility model discloses an electrolytic hydrogen production device, include: an oxygen outlet of the hydrogen production electrolytic cell outputs oxygen through an oxygen side gas-liquid separator; a hydrogen outlet of the hydrogen production electrolytic tank outputs hydrogen through a hydrogen side gas-liquid separator; the electrolysis power supply is connected to the power supply end of the hydrogen production electrolysis cell; and the rectification power supply is connected to the power supply end of the hydrogen production electrolytic cell and is connected in parallel with the electrolysis power supply. The utility model can eliminate the reverse current generated by the electrolytic hydrogen production equipment in the electrolytic hydrogen production process, thereby protecting the electrolytic hydrogen production equipment.
Description
Technical Field
The utility model belongs to the technical field of electrolytic hydrogen production, especially, relate to an electrolytic hydrogen production device.
Background
Hydrogen energy is a secondary energy source with rich sources, green, low carbon and wide application, and is gradually becoming one of important carriers for transformation and development of global energy. The development of the hydrogen energy industry is highly valued in mainly developed countries in the world, and the hydrogen energy becomes an important strategic choice for accelerating the transformation and upgrading of energy, ensuring the energy safety and cultivating a new economic growth point. The production of green hydrogen by electrolyzing water is a main accepted way for producing hydrogen in the future, and at present, alkaline electrolysis and proton exchange membrane electrolysis are mainly used for producing hydrogen.
However, in the existing mode, serious reverse current can be caused in the electrolytic hydrogen production equipment in the electrolytic hydrogen production process, and the reverse current can cause serious damage to parts such as an electrode, a hydrogen production electrolytic cell and the like, so that the efficiency of the electrolytic hydrogen production equipment is reduced, the service life is shortened, and the concentration of generated hydrogen is influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide an electrolytic hydrogen production device which can eliminate the reverse current generated by electrolytic hydrogen production equipment in the electrolytic hydrogen production process, thereby protecting the electrolytic hydrogen production equipment.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an electrolytic hydrogen production apparatus comprising:
the oxygen outlet of the hydrogen production electrolytic cell outputs oxygen; a hydrogen outlet of the hydrogen production electrolytic cell outputs hydrogen;
the electrolysis power supply is connected to the power supply end of the hydrogen production electrolysis cell;
and the rectification power supply is connected to the power supply end of the hydrogen production electrolytic cell and is connected in parallel with the electrolysis power supply.
Further, a switch I is arranged on a circuit from the electrolysis power supply to the power supply end of the hydrogen production electrolysis bath, and a switch II is arranged at a grounding wire of the hydrogen production electrolysis bath; the controller is connected with the switch I, the switch II and the electric control end of the rectification power supply respectively.
Further, an oxygen outlet of the hydrogen production electrolytic cell outputs oxygen through an oxygen side gas-liquid separator.
Further, the rear end of the oxygen side gas-liquid separator outputs oxygen after passing through an oxygen scrubber.
Further, the oxygen scrubber is followed by an oxygen purification, drying and pressurization treatment device and then outputs oxygen to an oxygen storage device.
Further, a hydrogen outlet of the hydrogen production electrolytic tank outputs hydrogen through a hydrogen side gas-liquid separator.
Further, the hydrogen is output after passing through a hydrogen scrubber at the rear end of the hydrogen-side gas-liquid separator.
Further, the hydrogen is output to a hydrogen storage device after passing through an oxygen purification, drying and pressurization processing device after the oxygen scrubber.
Furthermore, a cooler is arranged on the hydrogen production electrolytic cell.
Further, a plurality of rectified power supplies are arranged in parallel.
The beneficial effects of the technical scheme are as follows:
the utility model discloses in through in electrolysis hydrogen manufacturing system, with parallelly connected rectifier power supply unit of electrolysis power, through the cooperation of control electrolysis power and rectifier power, can eliminate the reverse current that produces in the electrolysis hydrogen manufacturing equipment to play the guard action to electrolysis hydrogen manufacturing equipment, thereby effectively guaranteed the efficiency of electrolysis hydrogen manufacturing equipment, improve working life, guarantee to produce the concentration of hydrogen.
Drawings
FIG. 1 is a schematic structural view of an electrolytic hydrogen production apparatus of the present invention;
FIG. 2 is a schematic top view of an electrolytic hydrogen production apparatus according to an optimized embodiment of the present invention;
FIG. 3 is a schematic diagram of the control connection of the electrolytic hydrogen production device in another optimized scheme of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further explained below with reference to the accompanying drawings.
In this embodiment, referring to fig. 1, an electrolytic hydrogen production apparatus includes:
the oxygen outlet of the hydrogen production electrolytic cell outputs oxygen; hydrogen is output from a hydrogen outlet of the hydrogen production electrolytic cell;
the electrolysis power supply is connected to the power supply end of the hydrogen production electrolysis cell;
and the rectification power supply is connected to the power supply end of the hydrogen production electrolytic cell and is connected in parallel with the electrolysis power supply.
As an optimized scheme of the above embodiment, as shown in fig. 2, a switch i is arranged on a line from the electrolysis power supply to the power supply end of the hydrogen production electrolysis cell, and a switch ii is arranged at the ground wire of the hydrogen production electrolysis cell; the controller is connected with the switch I, the switch II and the electric control end of the rectification power supply respectively. When the whole system operates normally, the switch II is disconnected, the switch I is closed, the electrolysis power supply supplies power to the electrolysis bath, and the cathode and the anode in the electrolysis bath separate out hydrogen and oxygen respectively. By controlling the operation time sequence of the electrolysis power supply and the rectification power supply, the coordination of the voltage and the current of the electrolysis power supply and the rectification power supply and the coordination of the operation of the cooling system of the hydrogen production electrolytic cell, the reverse current of the hydrogen production electrolytic cell in the stop and start stages can be counteracted.
As a preferable embodiment of the above embodiment, as shown in fig. 2, the oxygen outlet of the hydrogen production electrolyzer is passed through an oxygen-side gas-liquid separator to output oxygen.
Preferably, the rear end of the oxygen side gas-liquid separator outputs oxygen after passing through an oxygen scrubber.
Preferably, the oxygen scrubber is followed by an oxygen purification, drying and pressurization treatment device and then outputs oxygen to an oxygen storage device.
As an optimization scheme of the embodiment, the hydrogen outlet of the hydrogen production electrolytic cell outputs hydrogen through the hydrogen side gas-liquid separator.
Preferably, the hydrogen gas is output after passing through a hydrogen scrubber at the rear end of the hydrogen-side gas-liquid separator.
Preferably, the hydrogen is output to the hydrogen storage device after passing through the oxygen scrubber and the oxygen purification, drying and pressurization processing device.
As a preferred embodiment of the above embodiment, as shown in fig. 3, a cooler is provided in the hydrogen production electrolytic cell.
As an optimization scheme of the above embodiment, a plurality of rectified power supplies are arranged in parallel.
When any one of the rectifying power supplies works independently, the task of counteracting reverse current can be completed, and thus the reliability of the rectifying power supply is improved.
The rectification power supply can adopt a polarized rectification power supply, and can be supplied with power by a high-reliability power grid access point or a high-reliability power supply or an uninterrupted power supply. The polarized rectifier power supply has the following protection functions, including inrush current protection, rapid overcurrent fusing protection, direct current overload protection, direct current overvoltage protection, short circuit protection, alternating current breaking and undervoltage protection, and rapid action current limiting protection.
For better understanding, the utility model discloses, following is to the theory of operation of the utility model make a complete description:
in the electrolysis system, a rectification power supply device is connected in parallel with the electrolysis power supply, and the reverse current of the hydrogen production electrolysis bath in the stop and start stages can be counteracted by controlling the operation time sequence of the electrolysis power supply and the rectification power supply, the coordination of the voltage and the current of the electrolysis power supply and the rectification power supply and the coordination of the operation of the cooling system of the hydrogen production electrolysis bath, so that the electrodes and the hydrogen production electrolysis bath are protected.
The rectification power supply and the electrolysis power supply are connected in parallel on the hydrogen production electrolytic cell and are in a standby state, and when the electrolysis power supply works normally, the rectification power supply does not work.
Operating scheme in shutdown phase: no matter normal maintenance shutdown or abnormal fault shutdown, when the electrolysis power supply is powered off, the rectification power supply needs to be started and output in a constant current mode, and meanwhile, the hydrogen production electrolytic cell cooling system continues to cool the electrolyte to 50 ℃, and the rectification power supply stops working.
The operation scheme of the boot stage is as follows: when the electrolysis system is started, the rectification power supply is started firstly, works in a constant current output mode, and then the electrolysis power supply is started. When the output voltage of the electrolysis power supply reaches the output voltage of the rectification power supply, the output current of the rectification power supply works in a constant current mode all the time, and when the output voltage of the electrolysis power supply reaches the output voltage of the rectification power supply, the output current of the rectification power supply is reduced to zero, the rectification power supply quits working, and the electrolysis power supply enters a standby state.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An electrolytic hydrogen production apparatus, comprising:
the oxygen outlet of the hydrogen production electrolytic cell outputs oxygen; hydrogen is output from a hydrogen outlet of the hydrogen production electrolytic cell;
the electrolysis power supply is connected to the power supply end of the hydrogen production electrolysis cell;
and the rectification power supply is connected to the power supply end of the hydrogen production electrolytic cell and is connected in parallel with the electrolysis power supply.
2. An electrolytic hydrogen production device according to claim 1, characterized in that a circuit from the electrolytic power supply to the power supply end of the hydrogen production electrolytic cell is provided with a switch I, and a grounding wire of the hydrogen production electrolytic cell is provided with a switch II; the controller is connected with the switch I, the switch II and the electric control end of the rectification power supply respectively.
3. The electrolytic hydrogen production apparatus according to claim 1, wherein the oxygen outlet of the hydrogen production electrolytic cell outputs oxygen through an oxygen-side gas-liquid separator.
4. The electrolytic hydrogen production apparatus according to claim 3, wherein the oxygen is output after passing through an oxygen scrubber at the rear end of the oxygen-side gas-liquid separator.
5. An electrolytic hydrogen production apparatus according to claim 4, wherein the oxygen scrubber is followed by an oxygen purification, drying and pressurization treatment device to output oxygen to an oxygen storage device.
6. An electrolytic hydrogen production apparatus according to claim 1, wherein a hydrogen outlet of the hydrogen production electrolytic cell outputs hydrogen through a hydrogen-side gas-liquid separator.
7. The electrolytic hydrogen production apparatus according to claim 6, wherein the hydrogen gas is output after passing through a hydrogen scrubber at the rear end of the hydrogen-side gas-liquid separator.
8. The electrolytic hydrogen production apparatus according to claim 7, wherein the hydrogen scrubber is followed by a hydrogen purification, drying and pressurization device and then outputs hydrogen to a hydrogen storage device.
9. An electrolytic hydrogen production apparatus according to claim 1, wherein a cooler is provided in the hydrogen production electrolytic cell.
10. An electrolytic hydrogen production apparatus according to claim 1, wherein a plurality of rectified power supplies are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986677.3U CN217869106U (en) | 2022-07-29 | 2022-07-29 | Electrolytic hydrogen production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986677.3U CN217869106U (en) | 2022-07-29 | 2022-07-29 | Electrolytic hydrogen production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217869106U true CN217869106U (en) | 2022-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221986677.3U Active CN217869106U (en) | 2022-07-29 | 2022-07-29 | Electrolytic hydrogen production device |
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| CN (1) | CN217869106U (en) |
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2022
- 2022-07-29 CN CN202221986677.3U patent/CN217869106U/en active Active
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