CN212627684U - Modulation power supply suitable for hydrogen production by water electrolysis - Google Patents
Modulation power supply suitable for hydrogen production by water electrolysis Download PDFInfo
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- CN212627684U CN212627684U CN202020843502.1U CN202020843502U CN212627684U CN 212627684 U CN212627684 U CN 212627684U CN 202020843502 U CN202020843502 U CN 202020843502U CN 212627684 U CN212627684 U CN 212627684U
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- power supply
- direct current
- hydrogen production
- modulation
- water electrolysis
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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 provides a modulation power suitable for electrolytic water hydrogen manufacturing, its characterized in that: the device comprises a constant voltage direct current power supply and a modulation module. The utility model discloses a modulation power supply is the direct current of constant voltage direct current modulation for having certain duty cycle for when the brineelectrolysis hydrogen manufacturing, can reduce the loss of generating heat of plate electrode by a wide margin, reduce the influence of bubble effect to the effective electrolysis area of plate electrode.
Description
Technical Field
The utility model relates to a modulation power supply, concretely relates to modulation power supply suitable for electrolytic water hydrogen manufacturing.
Background
The current efficiency of hydrogen production by water electrolysis is not high, and is usually below 50%, because alternating current is rectified and then is generally sine wave pulse direct current, when the alternating current is directly used for hydrogen production by water electrolysis, the current density on a polar plate can be periodically increased and decreased, so that part of electric energy is used for hydrogen production, and part of electric energy is subjected to heating loss. Meanwhile, a large amount of micro bubbles generated by continuous current loading are attached to the surface of the polar plate, and some bubbles cannot be separated from the polar plate immediately, so that the effective area of the polar plate is reduced, the reaction overpotential is increased, and further the current efficiency is not high. The constant voltage direct current is adopted, so that the heat loss of electric energy can be greatly reduced, the constant voltage direct current is closed at a certain frequency and time, the influence of the bubble effect on the effective electrolysis area of the polar plate is favorably reduced, and the current efficiency is improved.
Disclosure of Invention
The utility model aims to provide a: the modulation power supply is suitable for hydrogen production by water electrolysis, constant-voltage direct current is modulated into direct current with a certain duty ratio, heating loss of a plate electrode during hydrogen production is greatly reduced, and influence of a bubble effect on the effective electrolysis area of the plate electrode is reduced.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a modulation power supply suitable for hydrogen production by water electrolysis is characterized in that: the device comprises a constant voltage direct current power supply and a modulation module. Wherein: the modulation module comprises a PLC controller, a solid-state relay and a flow sensor.
The communication output port of the flow sensor is connected with the communication input port of the PLC;
the communication output port of the PLC is connected with the communication input port of the solid-state relay;
the output end of the positive pole or the negative pole of the constant voltage direct current power supply is connected with the inlet terminal of the output port of the solid-state relay; and the other pole output end of the constant voltage direct current power supply and the outlet terminal of the output port of the solid-state relay are respectively used as two poles of the modulation power supply suitable for hydrogen production by water electrolysis to output modulation direct current.
The modulation process of the modulation power supply suitable for hydrogen production by water electrolysis comprises the following steps: the constant-voltage direct-current power supply outputs direct current with constant voltage to the hydrogen production load, the flow sensor continuously collects and outputs flow information of hydrogen to the PLC, and the PLC continuously outputs electric signals to the solid-state relay according to the flow information of the hydrogen, so that the solid-state relay cuts off the constant-voltage direct current at a certain frequency for a certain time, namely, the constant-voltage direct current with a certain duty ratio is modulated, and the current efficiency is improved.
The modulation power supply can provide stable direct current with a certain duty ratio for the water electrolysis hydrogen production system.
Due to the adoption of the scheme, the utility model has the characteristics of it is following:
the utility model discloses a modulation power supply is the direct current of constant voltage direct current modulation for having certain duty cycle for when electrolysis water hydrogen manufacturing, can reduce the loss of generating heat of plate electrode by a wide margin, reduce the influence of bubble effect to the effective electrolysis area of plate electrode, thereby improve current efficiency.
Drawings
Fig. 1 is a schematic diagram of a system for modulating power supply suitable for hydrogen production by water electrolysis.
Detailed Description
The modulated power source suitable for hydrogen production by water electrolysis according to the present invention is described in detail below with reference to fig. 1.
Firstly, as shown in fig. 1, the modulation power supply suitable for hydrogen production by water electrolysis comprises a constant voltage direct current power supply 1 and a modulation module 2.
The modulation module 2 comprises a PLC (programmable logic controller) 21, a solid-state relay 22 and a flow sensor 23.
And thirdly, the constant voltage direct current power supply 1 outputs the direct current with constant voltage to the hydrogen production load 3 through the solid-state relay 22.
The flow sensor 23 collects and outputs the flow information of the hydrogen to the PLC controller 21, and the PLC controller 21 outputs an electrical signal to the solid-state relay 22 according to the flow information of the hydrogen, so that the solid-state relay 22 disconnects the constant-voltage direct current at a certain frequency for a certain period of time, thereby modulating the constant-voltage direct current with a certain duty ratio.
Fifthly, continuously repeating the working process in the fourth step by the flow sensor 23, the PLC 21 and the solid-state relay 22 until the hydrogen production amount of the hydrogen production load 3 reaches the maximum.
The foregoing description is intended to be illustrative of the invention and is not to be construed as limiting thereof. Those skilled in the art will appreciate that many modifications, variations or equivalents may be made without departing from the spirit and scope defined in the claims, which fall within the scope of the invention.
Claims (4)
1. A modulation power supply suitable for hydrogen production by water electrolysis is characterized in that: including constant voltage DC power supply and modulation module, wherein:
the modulation module comprises a PLC (programmable logic controller), a solid-state relay and a flow sensor;
the communication output port of the flow sensor is connected with the communication input port of the PLC;
the communication output port of the PLC is connected with the communication input port of the solid-state relay;
the output end of the positive pole or the negative pole of the constant voltage direct current power supply is connected with the inlet terminal of the output port of the solid-state relay; and the other pole output end of the constant voltage direct current power supply and the outlet terminal of the output port of the solid-state relay are respectively used as two poles of the modulation power supply suitable for hydrogen production by water electrolysis to output modulation direct current.
2. The modulated power supply suitable for hydrogen production from water electrolysis according to claim 1, characterized in that: the constant voltage direct current power supply outputs direct current with constant voltage.
3. The modulated power supply suitable for hydrogen production from water electrolysis according to claim 1, characterized in that: the flow sensor can collect the flow information of the hydrogen and transmit the information to the PLC.
4. The modulated power supply suitable for hydrogen production from water electrolysis according to claim 1, characterized in that: the PLC controller can output an electric signal to the solid-state relay, and the solid-state relay is controlled to disconnect and connect the direct current at a required frequency, so that the constant-voltage direct current is modulated into constant-voltage direct current with an adjustable duty ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020843502.1U CN212627684U (en) | 2020-05-20 | 2020-05-20 | Modulation power supply suitable for hydrogen production by water electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020843502.1U CN212627684U (en) | 2020-05-20 | 2020-05-20 | Modulation power supply suitable for hydrogen production by water electrolysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212627684U true CN212627684U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020843502.1U Active CN212627684U (en) | 2020-05-20 | 2020-05-20 | Modulation power supply suitable for hydrogen production by water electrolysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212627684U (en) |
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2020
- 2020-05-20 CN CN202020843502.1U patent/CN212627684U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220513 Address after: 300181 5th floor, innovation building, No. 174, Jintang Road, Hedong District, Tianjin Patentee after: Zang Wenping Address before: 300180 R & D building 174, Jintang Road, Hedong District, Tianjin 201 Patentee before: TIANJIN KIMWAN CARBON TECHNOLOGY AND DEVELOPMENT CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220921 Address after: 300450 Tianjin Binhai New Area pilot free trade zone (Airport Economic Zone) No. 121, East 10th Road, the whole factory building and the whole floor of the first floor of the administrative office building Patentee after: Tianjin Jinmei hydrogen source technology development Co.,Ltd. Address before: 300181 5th floor, innovation building, No. 174, Jintang Road, Hedong District, Tianjin Patentee before: Zang Wenping |