CN209873130U - Water electrolysis hydrogen production device with gas pre-purification function - Google Patents
Water electrolysis hydrogen production device with gas pre-purification function Download PDFInfo
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- CN209873130U CN209873130U CN201920429384.7U CN201920429384U CN209873130U CN 209873130 U CN209873130 U CN 209873130U CN 201920429384 U CN201920429384 U CN 201920429384U CN 209873130 U CN209873130 U CN 209873130U
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- hydrogen
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- alkali lye
- alkali liquor
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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 a water electrolysis hydrogen plant with gaseous purification function in advance, the import of anodal gas outlet of electrolysis trough and oxygen tee bend interface is connected respectively at the both ends of oxygen alkali lye hybrid pipeline, the air inlet of upside exit linkage oxygen alkali lye separator of oxygen tee bend interface, the import of electrolysis trough negative pole gas outlet and hydrogen tee bend interface is connected respectively at the both ends of hydrogen alkali lye hybrid pipeline, the air inlet of upside exit linkage hydrogen alkali lye separator of hydrogen tee bend interface, the downside alkali lye export of oxygen tee bend interface, the alkali lye discharge gate of oxygen alkali lye separator, the alkali lye backward flow mouth of electrolysis trough downside is connected to the downside alkali lye export of hydrogen tee bend interface and hydrogen alkali lye separator's alkali lye discharge gate, the upside gas outlet and the downside alkali lye export of tee bend interface are provided with hydrophobic membrane and hydrophilic membrane respectively. The utility model discloses the pre-purification effect has reduced vapour and liquid separator's gas-liquid handling capacity and design size, has also reduced the handling capacity and the design size of follow-up purification equipment simultaneously.
Description
Technical Field
The utility model relates to a water electrolysis hydrogen production device, in particular to a water electrolysis hydrogen production device with gas pre-purification function.
Background
The water electrolysis hydrogen production adopts potassium hydroxide or sodium hydroxide aqueous solution as electrolyte. Water is electrolyzed on the surface of the electrode to form hydrogen and oxygen, the hydrogen and oxygen and alkali liquor form a gas-liquid mixture, the gas-liquid mixture respectively enters a hydrogen and oxygen liquid separator, and the separated gas is subjected to purification treatment such as gas washing, cooling, deoxidation and the like.
In the whole hydrogen production device, the volume occupied by the gas-liquid separator and subsequent purification equipment can reach 50 percent or even higher, and the manufacturing cost is very high. Especially for skid-mounted containerized hydrogen production equipment, due to the limited space size, the requirements on the occupied area, the size of internal parts of the equipment and the arrangement are stricter.
As shown in FIG. 2, in a conventional hydrogen production apparatus using water electrolysis in the prior art, a gas-liquid mixture at the outlet of an electrolytic cell enters a gas-liquid separator, and the gas is separated from the alkali liquor brought out from the electrolytic cell by the gas/liquid gravity principle. After the separation process, the gas enters a subsequent purification process, and the alkali liquor flows back to the electrolytic cell through the heat exchanger. Because the obtained oxygen and hydrogen contain alkali liquor, the alkali liquor in the gas needs to be removed firstly when the gas is purified, thereby increasing the volume and the complexity of subsequent purification equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a water electrolysis hydrogen plant with gaseous purification function in advance is provided, carry out purification in advance to the hydrogen and the oxygen that obtain, get rid of alkali lye.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a water electrolysis hydrogen plant with gaseous purification function in advance which characterized in that: comprises an electrolytic bath, an oxygen alkali liquor mixing pipeline, an oxygen three-way interface, an oxygen alkali liquor separator, a hydrogen alkali liquor mixing pipeline, a hydrogen three-way interface and a hydrogen alkali liquor separator, wherein one end of the oxygen alkali liquor mixing pipeline is connected with an anode gas outlet of the electrolytic bath, the other end of the oxygen alkali liquor mixing pipeline is connected with an inlet of the oxygen three-way interface, an upper outlet of the oxygen three-way interface is connected with a gas inlet of the oxygen alkali liquor separator, one end of the hydrogen alkali liquor mixing pipeline is connected with a cathode gas outlet of the electrolytic bath, the other end of the hydrogen alkali liquor mixing pipeline is connected with an inlet of the hydrogen three-way interface, an upper outlet of the hydrogen three-way interface is connected with a gas inlet of the hydrogen alkali liquor separator, a lower alkali liquor outlet of the oxygen three-way interface, an alkali, and the upper side air outlet of the oxygen three-way interface and the upper side air outlet of the hydrogen three-way interface are respectively provided with a hydrophobic membrane which is permeable and impermeable to water, and the lower side alkali liquor outlet of the oxygen three-way interface and the lower side alkali liquor outlet of the hydrogen three-way interface are respectively provided with a hydrophilic membrane which is permeable and impermeable to air.
Furthermore, the electrolytic cell is an electrolytic cell group formed by a plurality of electrolytic cell single cells in parallel.
Further, still contain the heat exchanger, the downside alkali lye export of oxygen tee bend interface, the alkali lye discharge gate of oxygen alkali liquor separator, the downside alkali lye export of hydrogen tee bend interface and the alkali lye discharge gate of hydrogen alkali liquor separator pass through the import of pipeline and heat exchanger all the way, the export of the heat exchanger all the way is connected with the alkali lye backward flow mouth of electrolysis trough downside through the pipeline, and another way of heat exchanger lets in the coolant liquid.
Further, an upper side oxygen outlet of the oxygen alkali-liquid separator and an upper side hydrogen outlet of the hydrogen alkali-liquid separator are connected with subsequent purification equipment through pipelines.
Further, oxygen tee bend interface and hydrogen tee bend interface contain gas-liquid mixture distribution pipe, gas outlet duct and alkali lye discharging pipe, and gas outlet duct and alkali lye discharging pipe are the setting of perpendicular to gas-liquid mixture distribution pipe respectively, and the one end and the gas-liquid mixture distribution pipe upper end tip side of gas outlet duct are connected, and the one end and the gas-liquid mixture distribution pipe lower extreme tip side of alkali lye discharging pipe are connected, and the hydrophobic membrane setting is in the one end that gas outlet duct and gas-liquid mixture distribution union coupling, and hydrophilic membrane setting is in the one end that alkali lye discharging pipe and gas-liquid mixture distribution union coupling.
Further, the pipe diameter of gas-liquid mixture distributing pipe is greater than the pipe diameter of gas outlet pipe and alkali lye discharging pipe, and the pipe diameter of gas outlet pipe and alkali lye discharging pipe is greater than the pipe diameter of other connecting line again.
Furthermore, the hydrophobic membrane adopts one of a polyphenylene sulfide fiber diaphragm, a polytetrafluoroethylene diaphragm, a polyvinylidene fluoride diaphragm and a hydrophobic carbon fiber cloth diaphragm, prevents alkali liquor from passing through, and allows hydrogen and oxygen to pass through.
Furthermore, the hydrophilic membrane adopts one of a polydopamine modified composite polymer membrane, a hydrophilic modified polyphenylene sulfide fiber membrane, a hydrophilic carbon fiber cloth membrane, a polyether-ether-ketone membrane and a hydrophilic polyethylene membrane, and is used for blocking hydrogen and oxygen from passing through and allowing alkali liquor to pass through.
Compared with the prior art, the utility model, have following advantage and effect:
1. the utility model discloses a prepurification technology makes the electrolysis trough export gas-liquid mixture before entering vapour and liquid separator, based on the selective permeability of hydrophilic/hydrophobic membrane, carry out preliminary gas-liquid separation earlier, alkali lye after the preliminary separation does not directly reach the heat exchanger through vapour and liquid separator, and the gas branch road is then through entering vapour and liquid separator further gas-liquid separation, and this gas-liquid prepurification device has realized gaseous prepurification;
2. the pre-purification reduces the gas-liquid handling capacity and the design size of the gas-liquid separator, and also reduces the handling capacity and the design size of subsequent purification equipment.
Drawings
FIG. 1 is a schematic diagram of a hydrogen production apparatus by water electrolysis with gas pre-purification function according to the present invention.
FIG. 2 is a schematic diagram of a prior art water electrolytic hydrogen production apparatus.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are illustrative of the present invention and are not intended to limit the present invention.
As shown in figure 1, the utility model discloses a water electrolysis hydrogen plant with gaseous purification function in advance, contain electrolysis trough 1, oxygen alkali lye hybrid tube 2, oxygen tee bend interface 3, oxygen alkali lye separator 4, hydrogen alkali lye hybrid tube 5, hydrogen tee bend interface 6, hydrogen alkali lye separator 7 and heat exchanger 8, electrolysis trough 1 positive pole gas outlet is connected to the one end of oxygen alkali lye hybrid tube 2, the import of oxygen tee bend interface 3 is connected to the other end of oxygen alkali lye hybrid tube 2, the air inlet of oxygen alkali lye separator 4 is connected to the upside export of oxygen tee bend interface 3, electrolysis trough 1 negative pole gas outlet is connected to the one end of hydrogen alkali lye hybrid tube 5, the import of hydrogen tee bend interface 6 is connected to the other end of hydrogen alkali lye hybrid tube 5, the air inlet of hydrogen alkali lye separator 7 is connected to the upside export of hydrogen tee bend interface 6, the downside alkali lye export of oxygen tee bend interface 3, The alkali lye discharge gate of oxygen alkali liquor separator 4, the downside alkali lye export of hydrogen tee bend interface 6 and the alkali lye discharge gate of hydrogen alkali liquor separator 7 pass through the import connection all the way of pipeline and heat exchanger 8, the export of heat exchanger 8 all the way is passed through the pipeline and is connected with the alkali lye backward flow mouth of electrolysis trough 1 downside, 8 another ways of heat exchanger let in the coolant liquid, all be provided with ventilative waterproof membrane 9 in the upside gas outlet of oxygen tee bend interface 3 and the upside gas outlet of hydrogen tee bend interface 6, all be provided with ventilative hydrophilic membrane 10 that permeates water in the downside alkali lye export of oxygen tee bend interface 3 and the downside alkali lye export of hydrogen tee bend interface 6.
The hydrophobic membrane 9 adopts one of a polyphenylene sulfide fiber diaphragm, a polytetrafluoroethylene diaphragm, a polyvinylidene fluoride diaphragm and a hydrophobic carbon fiber cloth diaphragm, prevents alkali liquor from passing through, and allows hydrogen and oxygen to pass through. The hydrophilic membrane 10 adopts one of a polydopamine modified composite polymer diaphragm, a hydrophilic modified polyphenylene sulfide fiber diaphragm, a hydrophilic carbon fiber cloth diaphragm, a polyether-ether-ketone diaphragm and a hydrophilic polyethylene diaphragm, and prevents hydrogen and oxygen from passing through and allows alkali liquor to pass through.
The electrolytic tank 1 is an electrolytic tank group formed by a plurality of electrolytic tank single tanks in parallel. The oxygen outlet on the upper side of the oxygen alkali-liquid separator 4 and the hydrogen outlet on the upper side of the hydrogen alkali-liquid separator 7 are connected with subsequent purification equipment through pipelines.
Oxygen tee bend interface 3 and hydrogen tee bend interface 4 contain gas-liquid mixture distributing pipe 31, gas outlet pipe 32 and alkali lye discharging pipe 33 are perpendicular to gas-liquid mixture distributing pipe 31 setting respectively, the one end of gas outlet pipe 32 is connected with gas-liquid mixture distributing pipe 31 upper end tip side, the one end and the gas-liquid mixture distributing pipe 31 lower extreme tip side of alkali lye discharging pipe 33 are connected, hydrophobic membrane 9 sets up in the one end that gas outlet pipe 32 and gas-liquid mixture distributing pipe 31 are connected, hydrophilic membrane 10 sets up in the one end that alkali lye discharging pipe 33 and gas-liquid mixture distributing pipe 31 are connected. The pipe diameter of the gas-liquid mixing distribution pipe 31 is larger than that of the gas outlet pipe 32 and the alkali liquor outlet pipe 33, and the pipe diameters of the gas outlet pipe 32 and the alkali liquor outlet pipe 33 are larger than those of other connecting pipelines.
The utility model discloses a prepurification technology makes the electrolysis trough export gas-liquid mixture before entering vapour and liquid separator, based on the selective permeability of hydrophilic/hydrophobic membrane, carry out preliminary gas-liquid separation earlier, alkali lye after the preliminary separation does not directly reach the heat exchanger through vapour and liquid separator, and the gas branch road is then through entering vapour and liquid separator further gas-liquid separation, and this gas-liquid prepurification device has realized gaseous prepurification; the pre-purification reduces the gas-liquid handling capacity and the design size of the gas-liquid separator, and also reduces the handling capacity and the design size of subsequent purification equipment.
The above description in this specification is merely illustrative of the present invention. Those skilled in the art can make various modifications or additions to the described embodiments or substitute them in a similar manner without departing from the scope of the present invention as defined in the following claims.
Claims (8)
1. The utility model provides a water electrolysis hydrogen plant with gaseous purification function in advance which characterized in that: comprises an electrolytic bath, an oxygen alkali liquor mixing pipeline, an oxygen three-way interface, an oxygen alkali liquor separator, a hydrogen alkali liquor mixing pipeline, a hydrogen three-way interface and a hydrogen alkali liquor separator, wherein one end of the oxygen alkali liquor mixing pipeline is connected with an anode gas outlet of the electrolytic bath, the other end of the oxygen alkali liquor mixing pipeline is connected with an inlet of the oxygen three-way interface, an upper outlet of the oxygen three-way interface is connected with a gas inlet of the oxygen alkali liquor separator, one end of the hydrogen alkali liquor mixing pipeline is connected with a cathode gas outlet of the electrolytic bath, the other end of the hydrogen alkali liquor mixing pipeline is connected with an inlet of the hydrogen three-way interface, an upper outlet of the hydrogen three-way interface is connected with a gas inlet of the hydrogen alkali liquor separator, a lower alkali liquor outlet of the oxygen three-way interface, an alkali, and the upper side air outlet of the oxygen three-way interface and the upper side air outlet of the hydrogen three-way interface are respectively provided with a hydrophobic membrane which is permeable and impermeable to water, and the lower side alkali liquor outlet of the oxygen three-way interface and the lower side alkali liquor outlet of the hydrogen three-way interface are respectively provided with a hydrophilic membrane which is permeable and impermeable to air.
2. The apparatus for hydrogen production by water electrolysis with gas pre-purification function according to claim 1, characterized in that: the electrolytic cell is an electrolytic cell group formed by a plurality of electrolytic cell single cells in parallel.
3. The apparatus for hydrogen production by water electrolysis with gas pre-purification function according to claim 1, characterized in that: still contain the heat exchanger, the downside alkali lye export of oxygen tee bend interface, the alkali lye discharge gate of oxygen alkali liquor separator, the downside alkali lye export of hydrogen tee bend interface and the alkali lye discharge gate of hydrogen alkali liquor separator pass through the import connection of the same kind of pipeline with the heat exchanger, the export of the same kind of heat exchanger is connected through the alkali lye backward flow mouth of pipeline with the electrolysis trough downside, and another way of heat exchanger lets in the coolant liquid.
4. The apparatus for hydrogen production by water electrolysis with gas pre-purification function according to claim 1, characterized in that: and the oxygen outlet at the upper side of the oxygen alkali-liquid separator and the hydrogen outlet at the upper side of the hydrogen alkali-liquid separator are connected with subsequent purification equipment through pipelines.
5. The apparatus for hydrogen production by water electrolysis with gas pre-purification function according to claim 1, characterized in that: oxygen tee bend interface and hydrogen tee bend interface contain gas-liquid mixture distribution pipe, gas outlet duct and alkali lye discharging pipe, and gas outlet duct and alkali lye discharging pipe are the perpendicular to gas-liquid mixture distribution pipe setting respectively, and the one end and the gas-liquid mixture distribution pipe upper end tip side of gas outlet duct are connected, and the one end and the gas-liquid mixture distribution pipe lower extreme tip side of alkali lye discharging pipe are connected, and hydrophobic membrane setting is in the one end that gas outlet duct and gas-liquid mixture distribution union coupling, and hydrophilic membrane setting is in the one end that alkali lye discharging pipe and gas-liquid mixture distribution union coupling.
6. The apparatus for producing hydrogen by electrolysis of water with gas pre-purification function according to claim 5, characterized in that: the pipe diameter of the gas-liquid mixing distribution pipe is larger than that of the gas outlet pipe and the alkali liquor discharging pipe, and the pipe diameters of the gas outlet pipe and the alkali liquor discharging pipe are larger than those of other connecting pipelines.
7. The apparatus for hydrogen production by water electrolysis with gas pre-purification function according to claim 1, characterized in that: the hydrophobic membrane adopts one of a polyphenylene sulfide fiber diaphragm, a polytetrafluoroethylene diaphragm, a polyvinylidene fluoride diaphragm and a hydrophobic carbon fiber cloth diaphragm, prevents alkali liquor from passing through, and allows hydrogen and oxygen to pass through.
8. The apparatus for hydrogen production by water electrolysis with gas pre-purification function according to claim 1, characterized in that: the hydrophilic membrane adopts one of a polydopamine modified composite polymer diaphragm, a hydrophilic modified polyphenylene sulfide fiber diaphragm, a hydrophilic carbon fiber cloth diaphragm, a polyether-ether-ketone diaphragm and a hydrophilic polyethylene diaphragm, and is used for preventing hydrogen and oxygen from passing through and allowing alkali liquor to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920429384.7U CN209873130U (en) | 2019-04-01 | 2019-04-01 | Water electrolysis hydrogen production device with gas pre-purification function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920429384.7U CN209873130U (en) | 2019-04-01 | 2019-04-01 | Water electrolysis hydrogen production device with gas pre-purification function |
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| CN209873130U true CN209873130U (en) | 2019-12-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852985A (en) * | 2019-04-01 | 2019-06-07 | 南通安思卓新能源有限公司 | A kind of hydrogen production plant by water electrolysis with gas prepurification function |
| CN113737219A (en) * | 2021-08-31 | 2021-12-03 | 北京绿钛科技有限公司 | Device for electrolytic hydrogen production and preventing mixing |
-
2019
- 2019-04-01 CN CN201920429384.7U patent/CN209873130U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852985A (en) * | 2019-04-01 | 2019-06-07 | 南通安思卓新能源有限公司 | A kind of hydrogen production plant by water electrolysis with gas prepurification function |
| CN109852985B (en) * | 2019-04-01 | 2023-12-29 | 航天思卓氢能科技有限公司 | Water electrolysis hydrogen production device with gas pre-purification function |
| CN113737219A (en) * | 2021-08-31 | 2021-12-03 | 北京绿钛科技有限公司 | Device for electrolytic hydrogen production and preventing mixing |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210406 Address after: 620000 No.2 Yucai Road, Checheng community, Simeng Town, Dongpo District, Meishan City, Sichuan Province Patentee after: Sichuan anward New Energy Technology Co.,Ltd. Address before: No.138, zhuanqiang economic Park, Gaochun District, Nanjing City, Jiangsu Province, 211302 Patentee before: ANSIZHUO (NANJING) NEW ENERGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: 226500 No.13 Qifeng West Road, Chengbei street, Rugao City, Nantong City, Jiangsu Province Patentee after: Li Haiming Address before: 620000 No.2 Yucai Road, Checheng community, Simeng Town, Dongpo District, Meishan City, Sichuan Province Patentee before: Sichuan anward New Energy Technology Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230824 Address after: Room 101, 1st Floor, Building 4, Courtyard 9, Fengyuan Street, Daxing District, Beijing 102600 Patentee after: Aerospace Sizhuo Hydrogen Technology Co.,Ltd. Address before: 226500 No.13 Qifeng West Road, Chengbei street, Rugao City, Nantong City, Jiangsu Province Patentee before: Li Haiming |