CN212834049U - Hydrogen production system using seawater as raw material - Google Patents
Hydrogen production system using seawater as raw material Download PDFInfo
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- CN212834049U CN212834049U CN202021541051.2U CN202021541051U CN212834049U CN 212834049 U CN212834049 U CN 212834049U CN 202021541051 U CN202021541051 U CN 202021541051U CN 212834049 U CN212834049 U CN 212834049U
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- seawater
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- flash evaporation
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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
- 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
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Abstract
The utility model relates to a hydrogen production system using seawater as raw material, which comprises a hydrogen production system and a flash evaporation system, wherein the hydrogen production system comprises an SOEC and an alkaline water electrolysis system, seawater is introduced into a flash evaporation inlet pipeline of the flash evaporation system, a water vapor pipeline of the flash evaporation system is connected with the hydrogen production system, and a concentrated seawater pipeline of the flash evaporation system enters the alkaline water electrolysis system; still contain solar energy collection system, first heat exchanger and the second heat exchanger through the circulating line series connection, this first heat exchanger sets up on the flash distillation inlet pipeline, and this second heat exchanger sets up on the water vapor pipeline, the utility model discloses a system uses the sea water to make hydrogen as the raw materials, and the sea water reserves are very big, accords with sustainable development technical route, adopts solar energy to carry out primary heating to steam simultaneously, compares the mode that directly adopts the electrical heating, has reduced SOEC's power consumption to a certain extent, has practiced thrift the cost.
Description
Technical Field
The utility model belongs to the technical field of clean energy, a hydrogen production system using seawater as raw material is related to.
Background
Hydrogen is a clean, environmentally friendly, and efficient energy source, but most of the hydrogen is currently produced from fossil energy. Fresh water accounts for only 2.5% and seawater accounts for 97.5% of the total amount of water resources on the earth, so that seawater is an inexhaustible main water source in a certain sense. The method for producing hydrogen by using seawater is a sustainable development technical route.
At present, the reaction temperature of the SOEC (high-temperature solid oxide water electrolysis hydrogen production system) is generally 600-1000 ℃, and a large amount of electric energy is consumed for heating water vapor to such a high temperature. How to reduce the SOEC power consumption and the cost become the focus of attention of researchers.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is to provide a hydrogen production system using seawater as raw material.
The technical means adopted by the utility model are as follows.
A hydrogen production system using seawater as a raw material comprises a hydrogen production system and a flash evaporation system, wherein the hydrogen production system comprises an SOEC (solar energy electrochemical converter) and an alkaline water electrolysis system, seawater is introduced into a flash evaporation inlet pipeline of the flash evaporation system, a water vapor pipeline of the flash evaporation system is connected with the hydrogen production system, and a concentrated seawater pipeline of the flash evaporation system enters the alkaline water electrolysis system; still contain solar energy collection system, first heat exchanger and the second heat exchanger through the circulation pipeline series connection, this first heat exchanger sets up on the flash distillation inlet pipeline, and this second heat exchanger sets up on the water vapor pipeline.
Further, the first heat exchanger and the second heat exchanger adopt plate heat exchangers.
Further, the temperature of the seawater after passing through the first heat exchanger is 90-100 ℃, and the temperature of the steam after passing through the second heat exchanger is 300-400 ℃.
Furthermore, the heat collector of the solar heat collection system is a trough-type heat collector, and the heat-conducting medium is fused salt.
Further, the steam prior to entering the SOEC was heated to 600-.
Further, the alkaline water electrolysis system is an alkaline water electrolysis bath.
The utility model discloses produced beneficial effect as follows.
(1) The system of the utility model uses seawater as raw material to produce hydrogen, the seawater reserve is very large, and the system accords with the technical route of sustainable development.
(2) The utility model discloses a solar energy carries out primary heating to steam, compares the mode that directly adopts electrical heating, has reduced SOEC's power consumption to a certain extent, has practiced thrift the cost.
Drawings
FIG. 1 is a flow chart of the system of the present invention.
Detailed Description
Please refer to fig. 1, which illustrates a system for producing hydrogen from seawater, comprising a hydrogen production system and a flash evaporation system 2, wherein the hydrogen production system comprises SOEC1 and an alkaline water electrolysis system, and the alkaline water electrolysis system can be selected from an alkaline water electrolysis tank 3 or any other device capable of realizing alkaline water electrolysis. Seawater is introduced into the flash evaporation inlet pipeline 21 of the flash evaporation system 2, and a water vapor pipeline 23 of the flash evaporation system 2 is connected with a heating device (not shown in the figure) in the SOEC. The concentrated seawater line 22 of the flash system 2 enters the alkaline water electrolyzer 3.
The solar heat collector further comprises a heating system, wherein the heating system comprises a solar heat collecting system 6, a first heat exchanger 4 and a second heat exchanger 5, and the solar heat collecting system 6, the first heat exchanger 4 and the second heat exchanger 5 are arranged in series through a circulating pipeline 61. The first heat exchanger 4 is arranged on the flash inlet line 21 and the second heat exchanger 5 is arranged on the water vapour line 23. The first heat exchanger 4 and the second heat exchanger 5 are plate heat exchangers. The heat collector of the solar heat collection system 6 is a trough type heat collector, the heat conducting medium is fused salt, and a fused salt storage tank can be arranged if necessary.
When the system works, the solar heat collecting system 6 converts solar energy into heat energy, and the heat energy is transferred to the first heat exchanger 4 and the second heat exchanger 5 through the circulating pipeline 61. Seawater enters a flash evaporation inlet pipeline 21, firstly passes through a first heat exchanger 4, enters a flash evaporation system 2 after being heated to 90-100 ℃, water vapor obtained by the flash evaporation system 2 enters a water vapor pipeline 23, passes through a second heat exchanger 5, and enters SOEC1 after being heated to 300-400 ℃. The reaction temperature of the SOEC1 is 600-1000 ℃, the temperature of the steam passing through the second heat exchanger 5 is 300-400 ℃, the steam needs to be heated to 600-1000 ℃, and the heating mode is electric heating; meanwhile, the concentrated seawater obtained by the flash evaporation system 2 enters an alkaline water electrolytic tank 3 for hydrogen production.
Claims (6)
1. A hydrogen production system taking seawater as a raw material is characterized by comprising a hydrogen production system and a flash evaporation system (2), wherein the hydrogen production system comprises an SOEC (1) and an alkaline water electrolysis system, seawater is introduced into a flash evaporation inlet pipeline (21) of the flash evaporation system (2), a steam pipeline (23) of the flash evaporation system (2) is connected with the SOEC (1), and a concentrated seawater pipeline (22) of the flash evaporation system (2) enters the alkaline water electrolysis system;
still contain solar energy collection system (6), first heat exchanger (4) and second heat exchanger (5) through circulating line (61) series connection, this first heat exchanger (4) set up on flash distillation inlet pipeline (21), this second heat exchanger (5) set up on steam pipeline (23).
2. A system for producing hydrogen from seawater as a raw material according to claim 1, wherein the first heat exchanger (4) and the second heat exchanger (5) adopt plate heat exchangers.
3. The system for producing hydrogen by using seawater as a raw material as claimed in claim 1, wherein the temperature of the seawater after passing through the first heat exchanger (4) is 90-100 ℃, and the temperature of the steam after passing through the second heat exchanger (5) is 300-400 ℃.
4. The system for producing hydrogen by using seawater as a raw material according to claim 1, wherein the heat collector of the solar heat collection system (6) is a trough heat collector, and the heat conducting medium is molten salt.
5. The system for producing hydrogen with seawater as raw material as claimed in claim 1, wherein the steam before entering the SOEC (1) is heated to 600-.
6. A system for producing hydrogen from seawater as a raw material according to claim 1, wherein the alkaline water electrolysis system is an alkaline water electrolysis tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021541051.2U CN212834049U (en) | 2020-07-30 | 2020-07-30 | Hydrogen production system using seawater as raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021541051.2U CN212834049U (en) | 2020-07-30 | 2020-07-30 | Hydrogen production system using seawater as raw material |
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| Publication Number | Publication Date |
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| CN212834049U true CN212834049U (en) | 2021-03-30 |
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| CN202021541051.2U Active CN212834049U (en) | 2020-07-30 | 2020-07-30 | Hydrogen production system using seawater as raw material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4239104A3 (en) * | 2022-02-14 | 2023-09-13 | Kabushiki Kaisha Toshiba | Hydrogen production system and hydrogen production method |
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2020
- 2020-07-30 CN CN202021541051.2U patent/CN212834049U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4239104A3 (en) * | 2022-02-14 | 2023-09-13 | Kabushiki Kaisha Toshiba | Hydrogen production system and hydrogen production method |
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