CN210420193U - Hydrogen production device based on distributed photo-thermal water electrolysis and hydrogen fuel cell system - Google Patents
Hydrogen production device based on distributed photo-thermal water electrolysis and hydrogen fuel cell system Download PDFInfo
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- CN210420193U CN210420193U CN201920531714.3U CN201920531714U CN210420193U CN 210420193 U CN210420193 U CN 210420193U CN 201920531714 U CN201920531714 U CN 201920531714U CN 210420193 U CN210420193 U CN 210420193U
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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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- 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
- Y02E60/50—Fuel cells
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
Abstract
The utility model discloses a based on distributing type light and heat electrolysis water hydrogen plant and hydrogen fuel cell system, including dish formula stirling, water pump, electrolytic bath, hydrogen separator, hydrogen accumulator, hydrogen fuel cell, one-way DC converter, two-way DC converter, battery and DC AC DC-to-AC converter. Water enters the disc type Stirling engine from a water pump, the working medium is heated by solar energy photo-heat, and the water is heated into high-temperature steam and introduced into an electrolytic cell for electrolysis. And hydrogen obtained by electrolyzing water and unreacted steam are separated by a hydrogen separator, the hydrogen is stored in a hydrogen storage device, and the unreacted high-temperature steam returns to the disc-type Stirling engine for recycling. Hydrogen enters the anode of the hydrogen fuel cell, electrochemical reaction is carried out to convert chemical energy into electric energy, one part of the obtained electric energy flows into a load end through the DC/DC converter and the DC/AC inverter, and the other part of the obtained electric energy enters the storage battery through the DC/DC converter.
Description
Technical Field
The utility model relates to a based on distributing type light and heat electrolysis water hydrogen plant and hydrogen fuel cell system belongs to new forms of energy technical field.
Background
The distributed energy system is an energy production system with the characteristics of low emission, high flexibility, high efficiency and the like. The reasonable combination of the distributed energy system and the large power grid can greatly improve the power supply efficiency, the power supply quality and the power supply safety, reduce the environmental pollution, and is considered as a new direction of the development of the power industry in the 21 st century, such as the Chinese patent with the application number of 201710418947.8.
Hydrogen is a renewable energy source with very high heat value, and the product after combustion is only water without any pollution. With the increasing severity of energy crisis and environmental pollution, and the rapid development of distributed energy systems, the method has important significance for research and development of hydrogen energy.
Sunlight is focused to a heat absorber heating working medium by using a solar photo-thermal device disc type Stirling engine in a distributed energy system, water is heated into high-temperature steam through heat exchange, and the steam is electrolyzed through an electrolytic cell. The electric energy required by electrolysis can be reduced to a great extent by electrolyzing the high-temperature water vapor, and the electrolysis efficiency is greatly improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses combine the characteristics of distributed energy system, its multipotency complementary advantage of full play provides one kind and provides one kind based on distributed light and heat electrolysis water hydrogen plant and hydrogen fuel cell system.
The utility model provides a technical scheme that above-mentioned problem adopted is: a hydrogen production device based on distributed photo-thermal water electrolysis and a hydrogen fuel cell system are characterized by comprising a disc type Stirling engine, a water pump, an electrolytic cell, a hydrogen separator, a hydrogen storage device, a hydrogen fuel cell, a unidirectional DC/DC converter, a bidirectional DC/DC converter, a storage battery and a DC/AC inverter; the hydrogen fuel cell is respectively connected with the unidirectional DC/DC converter and the bidirectional DC/DC converter, the unidirectional DC/DC converter is connected with the DC/AC inverter, and the bidirectional DC/DC converter is connected with the storage battery.
Preferably, the working medium in the disc-type Stirling engine is selected from hydrogen or helium. The incident sunlight is focused to heat the working medium, so that the power generation is driven, and meanwhile, the heat exchange is carried out on the water.
Preferably, the electrolytic cell is a high-temperature solid oxide electrolytic cell. The high-temperature electrolysis can reduce the consumption of electric energy and improve the hydrogen production efficiency to a great extent, and the dynamic performance of the electrode can be greatly improved, the efficiency is improved and the cost is reduced by carrying out the electrolysis under the high-temperature condition. Meanwhile, the high-temperature electrolytic cell can be better matched with the high-temperature characteristic of the disc-type Stirling engine.
Furthermore, the hydrogen separator is used for separating hydrogen from water vapor, and because part of the mixed gas does not contain water vapor participating in electrolytic reaction, the separation is convenient for purification and storage of the hydrogen.
Preferably, the hydrogen reservoir is a high pressure hydrogen tank of 70MPa or 140 MPa.
Preferably, the hydrogen fuel cell is a Proton Exchange Membrane Fuel Cell (PEMFC) or a Solid Oxide Fuel Cell (SOFC). Both types of fuel cells have good performance by taking hydrogen as fuel, and meet the goals and routes of hydrogen energy and fuel cell technical innovation.
Preferably, the storage battery is a lithium ion battery or a lead carbon battery, wherein the lithium ion battery has high energy density, long cycle life and high charging and discharging efficiency, and the lead carbon battery has low system cost and is selected according to requirements. The storage battery is used for storing the residual electricity of the fuel cell and supplying power to the electrolytic cell when the sunlight is insufficient.
The working method comprises the following steps: the water pump injects water into the disc type Stirling engine, the working medium is heated by gathering solar energy photo-heat, the water is heated into high-temperature vapor by heat exchange, and meanwhile, electric energy is generated; introducing high-temperature water vapor into a cathode of an electrolytic cell, electrolyzing by using a small amount of electric energy of a storage battery or system residual electricity to obtain mixed gas, separating and purifying by using a hydrogen separator to obtain hydrogen, storing the hydrogen in a hydrogen storage device, and returning the water vapor to the disc-type Stirling engine for recycling; hydrogen is conveyed from the hydrogen storage device to the anode of the hydrogen fuel cell, and the chemical energy of the hydrogen fuel is converted into electric energy through electrochemical reaction; part of the electric energy output by the hydrogen fuel cell reaches a load end through the unidirectional DC/DC converter and the DC/AC inverter, and the other part of the electric energy enters the storage battery through the bidirectional DC/DC converter.
Compared with the prior art, the utility model, have following advantage and effect: the utility model discloses a dish formula stirling among the distributed energy system gathers behind the solar photothermal heating working medium that produces, converts water into high-temperature steam through the heat transfer and carries out the electrolysis hydrogen manufacturing, and the hydrogen that obtains passes through hydrogen fuel cell electricity generation. The utility model discloses the nimble, efficient characteristics of perfect combination distributed energy system, the complemental comprehensive utilization of multipotency, with solar energy and the complemental dish formula stirling of natural gas electricity generation, electrolysis water hydrogen manufacturing and multiple energy such as fuel cell coupling comprehensive step utilization, increase substantially the system efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
In the figure: the device comprises a disc type Stirling engine 1, a water pump 2, an electrolytic cell 3, a hydrogen separator 4, a hydrogen storage 5, a hydrogen fuel cell 6, a unidirectional DC/DC converter 7, a bidirectional DC/DC converter 8, a storage battery 9 and a DC/AC inverter 10.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1, the hydrogen production device based on distributed photothermal electrolysis of water and the hydrogen fuel cell system in the embodiment include a disc stirling engine 1, a water pump 2, an electrolytic cell 3, a hydrogen separator 4, a hydrogen reservoir 5, a hydrogen fuel cell 6, a unidirectional DC/DC converter 7, a bidirectional DC/DC converter 8, a storage battery 9, and a DC/AC inverter 10.
The water pump 2 is connected with the disc-type Stirling engine 1, the electrolytic cell 3, the hydrogen separator 4, the hydrogen storage 5 and the hydrogen fuel cell 6 are sequentially connected, the hydrogen fuel cell 6 is respectively connected with the unidirectional DC/DC converter 7 and the bidirectional DC/DC converter 8, the unidirectional DC/DC converter 7 is connected with the DC/AC inverter 10, and the bidirectional DC/DC converter 8 is connected with the storage battery 9.
Wherein: the working medium in the disc type Stirling engine 1 is hydrogen or helium. The electrolytic cell 3 is a high temperature solid oxide electrolytic cell. The hydrogen reservoir 5 is a high-pressure hydrogen tank of 70MPa or 140 MPa. The hydrogen fuel cell 6 is a proton exchange membrane fuel cell or a solid oxide fuel cell. The storage battery 9 is a lithium ion battery or a lead carbon battery.
The working method comprises the following steps: the water pump 2 injects water into the disc type Stirling engine 1, heats the working medium by gathering solar energy photo-heat, heats the water into high-temperature vapor by heat exchange, and simultaneously generates electric energy; introducing high-temperature water vapor into a cathode of an electrolytic cell 3, electrolyzing by using a small amount of electric energy of a storage battery or system residual electricity to obtain mixed gas, separating and purifying by using a hydrogen separator 4 to obtain hydrogen, storing the hydrogen in a hydrogen storage 5, and returning the water vapor to the disc-type Stirling engine 1 for recycling; hydrogen gas is transported from the hydrogen gas storage 5 to the anode of the hydrogen fuel cell 6, and the chemical energy of the hydrogen fuel is converted into electric energy through an electrochemical reaction; part of the electric energy output by the hydrogen fuel cell 6 reaches the load end through the unidirectional DC/DC converter 7 and the DC/AC inverter 10, and the other part enters the storage battery 9 through the bidirectional DC/DC converter 8.
Although the present invention has been described with reference to the above embodiments, it should not be construed as being limited to the scope of the present invention, and any modifications and alterations made by those skilled in the art without departing from the spirit and scope of the present invention should fall within the scope of the present invention.
Claims (6)
1. A hydrogen production device based on distributed photo-thermal electrolysis water and a hydrogen fuel cell system are characterized by comprising a disc type Stirling engine (1), a water pump (2), an electrolytic cell (3), a hydrogen separator (4), a hydrogen storage (5), a hydrogen fuel cell (6), a unidirectional DC/DC converter (7), a bidirectional DC/DC converter (8), a storage battery (9) and a DC/AC inverter (10); the water pump (2) is connected with the disc-type Stirling engine (1), the electrolytic cell (3), the hydrogen separator (4), the hydrogen storage device (5) and the hydrogen fuel cell (6) are sequentially connected, the hydrogen fuel cell (6) is respectively connected with the unidirectional DC/DC converter (7) and the bidirectional DC/DC converter (8), the unidirectional DC/DC converter (7) is connected with the DC/AC inverter (10), and the bidirectional DC/DC converter (8) is connected with the storage battery (9).
2. The device for producing hydrogen by water electrolysis based on distributed light and heat as claimed in claim 1, wherein the working medium in the disc type Stirling engine (1) is hydrogen or helium.
3. The device for producing hydrogen by water electrolysis based on distributed light and heat as well as the hydrogen fuel cell system according to claim 1, wherein the electrolytic cell (3) is a high-temperature solid oxide electrolytic cell.
4. The device for producing hydrogen by water electrolysis based on distributed light and heat as claimed in claim 1, wherein the hydrogen reservoir (5) is a high pressure hydrogen storage tank of 70MPa or 140 MPa.
5. The device for producing hydrogen by water electrolysis based on distributed light and heat as well as the hydrogen fuel cell system according to claim 1, wherein the hydrogen fuel cell (6) is a proton exchange membrane fuel cell or a solid oxide fuel cell.
6. The device for producing hydrogen by water electrolysis based on distributed light and heat as well as the hydrogen fuel cell system according to claim 1, wherein the storage battery (9) is a lithium ion battery or a lead carbon battery.
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| CN201920531714.3U CN210420193U (en) | 2019-04-18 | 2019-04-18 | Hydrogen production device based on distributed photo-thermal water electrolysis and hydrogen fuel cell system |
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| CN201920531714.3U CN210420193U (en) | 2019-04-18 | 2019-04-18 | Hydrogen production device based on distributed photo-thermal water electrolysis and hydrogen fuel cell system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093618A (en) * | 2019-04-18 | 2019-08-06 | 华电电力科学研究院有限公司 | Based on distributed photo-thermal device for preparing hydrogen and hydrogen fuel cell system and working method |
| CN113512730A (en) * | 2021-04-08 | 2021-10-19 | 西安交通大学 | Floating type solar photovoltaic photo-thermal coupling water electrolysis hydrogen production system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093618A (en) * | 2019-04-18 | 2019-08-06 | 华电电力科学研究院有限公司 | Based on distributed photo-thermal device for preparing hydrogen and hydrogen fuel cell system and working method |
| CN113512730A (en) * | 2021-04-08 | 2021-10-19 | 西安交通大学 | Floating type solar photovoltaic photo-thermal coupling water electrolysis hydrogen production system and method |
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