CN220450315U - Alkali liquor system suitable for hydrogen production equipment of photovoltaic hydrogen production hydrogenation station - Google Patents
Alkali liquor system suitable for hydrogen production equipment of photovoltaic hydrogen production hydrogenation station Download PDFInfo
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- CN220450315U CN220450315U CN202321894750.9U CN202321894750U CN220450315U CN 220450315 U CN220450315 U CN 220450315U CN 202321894750 U CN202321894750 U CN 202321894750U CN 220450315 U CN220450315 U CN 220450315U
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- pipeline
- hydrogen
- heat preservation
- separator
- water tank
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 85
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 85
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 239000003513 alkali Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 8
- 238000004321 preservation Methods 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000001301 oxygen Substances 0.000 claims abstract description 22
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 22
- 239000012670 alkaline solution Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 238000012806 monitoring device Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 5
- 238000005868 electrolysis reaction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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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
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model provides an alkali liquor system suitable for hydrogen production equipment of a photovoltaic hydrogen production hydrogenation station, which comprises the following components: an electrolytic tank, a hydrogen separator, an oxygen separator and a heat preservation water tank which are mutually connected through pipelines, wherein the pipelines comprise: the system comprises an alkali liquor preparation pipeline, a system inlet pipeline, a system outlet pipeline and a circulating pipeline, wherein the alkali liquor preparation pipeline is connected with a heat preservation water tank, alkali liquor enters an electrolytic tank from the heat preservation water tank through the system inlet pipeline, enters a hydrogen separator and an oxygen separator through the system inlet pipeline after being electrolyzed in the electrolytic tank, and enters the heat preservation water tank through the system outlet pipeline after being circulated through the circulating pipeline. The technical scheme of the utility model solves the problems of longer starting time and higher power consumption of the electrolytic cell in the prior art.
Description
Technical Field
The utility model relates to the technical field of hydrogen production equipment, in particular to an alkali liquor system suitable for hydrogen production equipment of a photovoltaic hydrogen production hydrogenation station.
Background
The development of hydrogen energy automobiles is not supported by hydrogen stations, but among the various types of hydrogen stations, renewable energy hydrogen production and hydrogen production integrated stations are the most preferred mode for realizing the application of green hydrogen. In view of the fact that the hydrogen energy vehicles in China are mainly exemplified in eastern regions, and the current situation of the water electrolysis hydrogen production technology is considered, the distributed photovoltaic alkaline water electrolysis hydrogen production hydrogenation integrated station is the most reasonable and economical choice at present.
However, photovoltaic has intermittent characteristics, which results in that the photovoltaic hydrogen production system can only work in daytime. After a night of waiting for a shutdown, the lye temperature drops almost to ambient temperature, which also means that a cold start-up process of up to about 1-2 hours has been passed when the water electrolysis system is started the next day. The longer starting time and the electricity consumption in the starting process are a great obstacle to the practical application of the hydrogen production and hydrogen adding station by the water electrolysis.
Chinese patent CN114108021A discloses an autothermal starting electrolytic water hydrogen production system and an operation method thereof, wherein a heating pipe and a catalytic burner are wound on an electrolyte buffer tank, crude hydrogen or stored high-purity hydrogen generated by electrolysis is utilized, a heat source is provided for the device in the cold starting process through catalytic combustion, and the electrolyte is heated, so that the rapid cold starting of the electrolytic water hydrogen production system is realized. The patent uses before the start-up of the electrolyzer, but not at the start-up of the electrolyzer, and does not modify the lye system.
Thus, there is a need for an alkaline solution system suitable for use in a photovoltaic hydrogen plant that is capable of maintaining an alkaline solution, reducing the start-up time and start-up power consumption of the electrolyzer.
Disclosure of Invention
The utility model mainly aims to provide an alkali liquor system suitable for hydrogen production equipment of a photovoltaic hydrogen production hydrogenation station, so as to solve the problems of longer starting time and higher power consumption of an electrolytic cell in the prior art.
To achieve the above object, the present utility model provides an alkaline solution system suitable for a hydrogen production plant of a photovoltaic hydrogen production and hydrogen production station, comprising: an electrolytic tank, a hydrogen separator, an oxygen separator and a heat preservation water tank which are mutually connected through pipelines, wherein the pipelines comprise: the system comprises an alkali liquor preparation pipeline, a system inlet pipeline, a system outlet pipeline and a circulating pipeline, wherein the alkali liquor preparation pipeline is connected with a heat preservation water tank, alkali liquor enters an electrolytic tank from the heat preservation water tank through the system inlet pipeline, enters a hydrogen separator and an oxygen separator through the system inlet pipeline after being electrolyzed in the electrolytic tank, and enters the heat preservation water tank through the system outlet pipeline after being circulated through the circulating pipeline.
Further, the lye configuration pipeline comprises: the first pipeline, the second pipeline, the third pipeline and the fourth pipeline which are sequentially connected are connected with the heat preservation water tank at one end of the first pipeline and one end of the fourth pipeline, the first ball valve and the first stop valve are sequentially arranged on the first pipeline along the alkali liquor flowing direction, and the filter, the circulating pump and the second stop valve are sequentially arranged on the third pipeline along the alkali liquor flowing direction.
Further, the system inlet pipeline comprises: the electrolytic cell comprises a first pipeline, a second pipeline, a third pipeline, a fifth pipeline, a seventh pipeline, a eighth pipeline, a ninth pipeline, a tenth pipeline and a eleventh pipeline, wherein the first pipeline, the second pipeline, the third pipeline, the fifth pipeline and the seventh pipeline are sequentially connected, the other end of the seventh pipeline is connected with the electrolytic cell, a fourth stop valve is arranged on the fifth pipeline, a sixth stop valve and a seventh stop valve are respectively arranged on the eighth pipeline and the ninth pipeline, and a ninth stop valve is arranged on the eleventh pipeline; the pipeline eight is provided with three connecting ends, wherein two connecting ends are connected with the electrolytic tank, and the other end is connected with the hydrogen separator; the pipeline nine is provided with three connecting ends, wherein two connecting ends are connected with the electrolytic tank, and the other end is connected with the oxygen separator; the oxygen separator and the hydrogen separator are connected by a line ten and a line eleven.
Further, the system withdrawal pipeline includes: first return line, second return line and return exhaust line, first return line includes: alkali liquor in the oxygen separator and the hydrogen separator flows into the heat preservation water tank after passing through the pipeline II and the pipeline I; the second return line includes: the alkaline solution in the electrolytic tank flows into the heat preservation water tank through a pipeline I, a pipeline II, a pipeline III and a pipeline IV in sequence, a third stop valve and a second ball valve are sequentially arranged on the pipeline IV along the flow direction of the alkaline solution, and a fifth stop valve is arranged on the pipeline I; the return exhaust pipeline is a pipeline twelve, one end of the return exhaust pipeline is connected with a pipeline eight, the other end of the return exhaust pipeline is connected with the heat preservation water tank, and the pipeline twelve is sequentially provided with an eighth stop valve and a third ball valve along the gas flowing direction; one end of the second pipeline is connected with the first pipeline, and the other end of the second pipeline is connected with the sixth pipeline.
Further, the circulation line includes: pipeline three, pipeline five, pipeline seven, pipeline eight, pipeline nine, pipeline ten and pipeline eleven.
Further, the system also comprises a sewage pipeline, one end of the sewage pipeline is connected with the heat preservation water tank, and a fourth ball valve is arranged on the sewage pipeline.
Further, the heat preservation water tank is a vacuum heat preservation barrel or is made of a stainless steel box body wrapped by heat preservation materials, and the heat preservation materials are rock wool heat preservation felt materials or polyester ammonia foaming materials. Further, the interlayer evacuation vacuum degree of the vacuum heat-preserving barrel is lower than 2.0 x 10 -2 Pa, the leak-off rate is lower than 6.0 x 10 -7 Pa*m 3 /s。
Further, an electric heating device and a temperature monitoring device are arranged in the heat preservation water tank, and the electrolytic tank is a bipolar filter-pressing type alkaline water electrolytic tank and is used for producing hydrogen; the hydrogen separator and the oxygen separator are both of gravity separator structures and are used for separating gas and alkali liquor.
Further, the system further comprises: the nitrogen purging pipeline is used for replacing residual air in the hydrogen separator after the alkaline solution enters the system and before the electrolytic tank operates.
The utility model has the following beneficial effects:
according to the utility model, by improving the alkali liquor system, the heat preservation or heating of the alkali tank is realized, and the traditional alkali liquor pipeline is optimized and improved, so that the temperature of the alkali liquor when the electrolytic tank is stopped is maintained, and the starting time and the starting power consumption of the electrolytic tank are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 shows a schematic diagram of the overall structure of an lye system of the present utility model suitable for use in a hydrogen plant for photovoltaic hydrogen production and hydrogen generation;
FIG. 2 shows a graph of temperature change after incubation of an alkaline solution using an alkaline solution system of FIG. 1 suitable for use in a hydrogen plant for photovoltaic hydrogen production and hydrogen production.
Wherein, the reference numerals in the drawings are as follows:
01. an electrolytic cell; 02. a hydrogen separator; 03. an oxygen separator; 04. a heat preservation water tank; 1. a first pipeline; 101. a first ball valve; 102. a first stop valve; 2. a second pipeline; 3. a third pipeline; 301. a second shut-off valve; 302. a circulation pump; 303. a filter; 4. a fourth pipeline; 401. a third stop valve; 402. a second ball valve; 5. a fifth pipeline; 501. a fourth shut-off valve; 6. a sixth pipeline; 601. a fifth shut-off valve; 7. a pipeline seven; 8. a pipeline eight; 801. a sixth shut-off valve; 9. a pipeline III; 901. a seventh stop valve; 10. a pipeline ten; 11. a pipeline eleven; 1101. a ninth shut-off valve; 12. twelve pipelines; 1201. a third ball valve; 1202. an eighth shutoff valve; 13. a sewage discharge pipeline; 1301. a fourth ball valve; 14. a nitrogen purging pipeline; 1401. a first one-way valve; 1402. a second one-way valve; 1403. and a tenth stop valve.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
An alkaline solution system for a photovoltaic hydrogen plant, as shown in fig. 1, comprising: an electrolytic tank 01, a hydrogen separator 02, an oxygen separator 03 and a heat preservation water tank 04 which are mutually connected through pipelines, wherein the pipelines comprise: the alkali liquor preparation pipeline, the system inlet pipeline, the system outlet pipeline and the circulating pipeline are connected with the heat preservation water tank 04, the alkali liquor enters the electrolytic tank 01 from the heat preservation water tank 04 through the system inlet pipeline, enters the hydrogen separator 02 and the oxygen separator 03 through the system inlet pipeline after being electrolyzed in the electrolytic tank 01, and enters the heat preservation water tank 04 through the system outlet pipeline after being circulated through the circulating pipeline.
The heat preservation water tank 04 can realize heat preservation and heating functions of alkali liquor, and when the electrolytic tank 01 is stopped, the alkali liquor in the system can be returned to the heat preservation box by utilizing the withdrawal system pipeline provided by the utility model, so that the descending trend of the temperature of the alkali liquor is delayed, the starting time and the power consumption of the electrolytic system during starting are reduced, and the utilization rate of hydrogen production is improved.
Specifically, the lye configuration pipeline comprises: pipeline one 1, pipeline two 2, pipeline three 3 and pipeline four 4 that connect gradually, pipeline one 1 and pipeline four 4's one end is connected with heat preservation water tank 04, has set gradually first ball valve 101 and first stop valve 102 along alkali lye flow direction on pipeline one 1, has set gradually filter 303, circulating pump 302 and second stop valve 301 along alkali lye flow direction on pipeline three 3.
Specifically, the system inlet pipeline comprises: pipeline one 1, pipeline two 2, pipeline three 3, pipeline five 5, pipeline seven 7, pipeline eight 8, pipeline nine 9, pipeline ten 10 and pipeline eleven 11 are sequentially connected, pipeline one 1, pipeline two 2, pipeline three 3, pipeline five 5 and pipeline seven 7 are sequentially connected, the other end of pipeline seven 7 is connected with an electrolytic tank 01, a fourth stop valve 501 is arranged on pipeline five 5, a sixth stop valve 801 and a seventh stop valve 901 are respectively arranged on pipeline eight 8 and pipeline nine 9, and a ninth stop valve 1101 is arranged on pipeline eleven 11;
the pipeline eight 8 is provided with three connecting ends, two of which are connected with the electrolytic tank 01, and the other end of which is connected with the hydrogen separator 02;
the pipeline nine 9 is provided with three connecting ends, two of which are connected with the electrolytic tank 01, and the other end is connected with the oxygen separator 03;
the oxygen separator 03 and the hydrogen separator 02 are connected by a line ten 10 and a line eleven 11.
Specifically, the system-exiting pipeline includes: first return line, second return line and return exhaust line, first return line includes: alkali liquor in the oxygen separator 03 and the hydrogen separator 02 flows into the heat preservation water tank 04 after passing through the pipeline II 2 and the pipeline I1; the second return line includes: the alkali liquor in the electrolytic tank 01 flows into the heat preservation water tank 04 through the pipeline six 6, the pipeline two 2, the pipeline three 3 and the pipeline four 4 in sequence, a third stop valve 401 and a second ball valve 402 are sequentially arranged on the pipeline four 4 along the alkali liquor flowing direction, and a fifth stop valve 601 is arranged on the pipeline six 6; the return exhaust pipeline is a pipeline twelve 12, one end of the return exhaust pipeline is connected with a pipeline eight 8, the other end of the return exhaust pipeline is connected with the heat preservation water tank 04, and the pipeline twelve 12 is sequentially provided with an eighth stop valve 1202 and a third ball valve 1201 along the gas flowing direction; one end of the second pipeline 2 is connected with the first pipeline 11, and the other end of the second pipeline is connected with the sixth pipeline 6. The second pipeline 2 and the first pipeline 1 are used for returning the alkali liquor in the hydrogen and oxygen separator to the heat preservation water tank 04, the alkali liquor in the electrolytic tank 01 sequentially flows through the sixth pipeline 6, the second pipeline 2, the third pipeline 3 and the fourth pipeline 4 to return to the heat preservation water tank 04, and the eighth stop valve 1202 and the third ball valve 1201 on the twelfth pipeline are used for exhausting when the alkali liquor returns to the water tank so as to ensure that the inside of the heat preservation water tank 04 is kept in a normal pressure state.
Specifically, the circulation line includes: pipeline three 3, pipeline five 5, pipeline seven 7, pipeline eight 8, pipeline nine 9, pipeline ten 10 and pipeline eleven 11.
Specifically, the system further comprises a drain pipeline 13, one end of the drain pipeline 13 is connected with the heat preservation water tank 04, and a fourth ball valve 1301 is arranged on the drain pipeline 13.
Specifically, the heat preservation water tank 04 is a vacuum heat preservation barrel or is made of a stainless steel box body wrapped by heat preservation materials, and the heat preservation materials are rock wool heat preservation felt materials or polyester ammonia foaming materials. The heat preservation water tank 04 is used for storing alkali liquor.
Specifically, the interlayer evacuation vacuum degree of the vacuum heat-preserving barrel is lower than 2.0 x 10 -2 Pa, the leak-off rate is lower than 6.0 x 10 - 7 Pa*m 3 /s。
Specifically, an electric heating device and a temperature monitoring device are arranged in the heat preservation water tank 04, and the electrolytic tank 01 is a bipolar filter-pressing type alkaline water electrolytic tank and is used for producing hydrogen; the hydrogen separator 02 and the oxygen separator 03 are both of gravity separator structures for separation of gases and lye.
Specifically, the system further comprises: a nitrogen purge line 14, a first one-way valve 1401, a second one-way valve 1402 and a tenth shut-off valve 1403, which displaces the residual air in the hydrogen separator 02 after the lye enters the system and before the electrolyzer is operated.
By utilizing the system provided by the utility model, the traditional alkali box is changed into a vacuum heat-preserving barrel, and a heat-preserving experiment is carried out on alkali liquor. The experimental data are shown in FIG. 2, and when the outdoor temperature is 0 ℃, the temperature of the alkali liquor is reduced from the initial 83.7 ℃ to 77.5 ℃ after 20 hours of heat preservation, and the temperature is reduced by only 6.2 ℃. If the traditional alkali box is adopted, the alkali liquor temperature is reduced to room temperature after 20 hours under the same conditions.
It should be understood that the above description is not intended to limit the utility model to the particular embodiments disclosed, but to limit the utility model to the particular embodiments disclosed, and that the utility model is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the utility model.
Claims (10)
1. An alkaline solution system suitable for use in a photovoltaic hydrogen production and hydrogen plant, comprising: an electrolytic cell, a hydrogen separator, an oxygen separator and a holding tank connected to each other by a pipeline comprising: the system comprises an alkali liquor configuration pipeline, a system inlet pipeline, a system outlet pipeline and a circulating pipeline, wherein the alkali liquor configuration pipeline is connected with the heat preservation water tank, alkali liquor enters the electrolytic tank from the heat preservation water tank through the system inlet pipeline, enters the hydrogen separator and the oxygen separator through the system inlet pipeline after being electrolyzed in the electrolytic tank, and enters the heat preservation water tank through the system outlet pipeline after being circulated through the circulating pipeline.
2. An alkaline solution system suitable for use in a photovoltaic hydrogen plant according to claim 1, wherein the alkaline solution deployment line comprises: the device comprises a first pipeline, a second pipeline, a third pipeline and a fourth pipeline which are sequentially connected, wherein one end of the first pipeline is connected with the heat preservation water tank, a first ball valve and a first stop valve are sequentially arranged on the first pipeline along the alkali liquor flowing direction, and a filter, a circulating pump and a second stop valve are sequentially arranged on the third pipeline along the alkali liquor flowing direction.
3. An alkaline solution system suitable for use in a photovoltaic hydrogen plant as claimed in claim 2, wherein said inlet system piping comprises: the electrolytic cell comprises a first pipeline, a second pipeline, a third pipeline, a fifth pipeline, a seventh pipeline, an eighth pipeline, a ninth pipeline, a tenth pipeline and an eleventh pipeline, wherein the first pipeline, the second pipeline, the third pipeline, the fifth pipeline and the seventh pipeline are sequentially connected, the other end of the seventh pipeline is connected with the electrolytic cell, a fourth stop valve is arranged on the fifth pipeline, a sixth stop valve and a seventh stop valve are respectively arranged on the eighth pipeline and the ninth pipeline, and a ninth stop valve is arranged on the eleventh pipeline;
the pipeline eight is provided with three connecting ends, two of which are connected with the electrolytic tank, and the other end of which is connected with the hydrogen separator;
the pipeline nine is provided with three connecting ends, two of the connecting ends are connected with the electrolytic tank, and the other end of the pipeline nine is connected with the oxygen separator;
the oxygen separator and the hydrogen separator are connected by the line ten and the line eleven.
4. A lye system suitable for use in a photovoltaic hydrogen plant according to claim 3, wherein said de-system piping comprises: first return line, second return line and return exhaust line, first return line includes: the alkali liquor in the oxygen separator and the hydrogen separator flows into the heat preservation water tank after passing through the pipeline II and the pipeline I;
the second return line includes: the alkaline solution in the electrolytic tank flows into the heat preservation water tank through the pipeline six, the pipeline two, the pipeline three and the pipeline four in sequence, a third stop valve and a second ball valve are sequentially arranged on the pipeline four along the alkaline solution flowing direction, and a fifth stop valve is arranged on the pipeline six;
the return exhaust pipeline is a pipeline twelve, one end of the return exhaust pipeline is connected with the pipeline eight, the other end of the return exhaust pipeline is connected with the heat preservation water tank, and the pipeline twelve is sequentially provided with an eighth stop valve and a third ball valve along the gas flowing direction;
one end of the second pipeline is connected with the eleventh pipeline, and the other end of the second pipeline is connected with the sixth pipeline.
5. An alkaline liquor system suitable for use in a photovoltaic hydrogen plant as claimed in claim 4, wherein said circulation line comprises: the third pipeline, the fifth pipeline, the seventh pipeline, the eighth pipeline, the ninth pipeline, the tenth pipeline and the eleventh pipeline.
6. An alkaline solution system suitable for use in a hydrogen plant for producing hydrogen from photovoltaic, hydrogen production and hydrogen stations as in claim 1 further comprising a blowdown line having one end connected to said holding tank and having a fourth ball valve disposed thereon.
7. The alkaline solution system suitable for the hydrogen production equipment of the photovoltaic hydrogen production and hydrogenation station according to claim 1, wherein the heat preservation water tank is a vacuum heat preservation barrel or is made of a stainless steel box body wrapped by heat preservation materials, and the heat preservation materials are rock wool heat preservation felt materials or polyester ammonia foaming materials.
8. An alkaline solution system suitable for use in a hydrogen plant for producing hydrogen from photovoltaic hydrogen as in claim 7, said vacuum drum having an interlayer evacuation vacuum level of less than 2.0 x 10 -2 Pa, the leak-off rate is lower than 6.0 x 10 -7 Pa*m 3 /s。
9. The alkaline solution system suitable for the hydrogen production equipment of the photovoltaic hydrogen production hydrogenation station according to claim 1, wherein the heat preservation water tank is internally provided with an electric heating device and a temperature monitoring device, and the electrolytic tank is a bipolar filter-pressing type alkaline water electrolytic tank for producing hydrogen; the hydrogen separator and the oxygen separator are both of gravity separator structures and are used for separating gas and alkali liquor.
10. The alkaline liquor system for a photovoltaic hydrogen plant of claim 1, further comprising: the system comprises a nitrogen purging pipeline, a first one-way valve, a second one-way valve and a tenth stop valve, wherein the nitrogen purging pipeline is used for replacing residual air in the hydrogen separator after alkaline liquor enters the system and before the electrolytic tank operates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321894750.9U CN220450315U (en) | 2023-07-19 | 2023-07-19 | Alkali liquor system suitable for hydrogen production equipment of photovoltaic hydrogen production hydrogenation station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321894750.9U CN220450315U (en) | 2023-07-19 | 2023-07-19 | Alkali liquor system suitable for hydrogen production equipment of photovoltaic hydrogen production hydrogenation station |
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| Publication Number | Publication Date |
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| CN220450315U true CN220450315U (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321894750.9U Active CN220450315U (en) | 2023-07-19 | 2023-07-19 | Alkali liquor system suitable for hydrogen production equipment of photovoltaic hydrogen production hydrogenation station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220450315U (en) |
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2023
- 2023-07-19 CN CN202321894750.9U patent/CN220450315U/en active Active
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