CN114082248A - Hydrogen purification device and water electrolysis hydrogen production system - Google Patents
Hydrogen purification device and water electrolysis hydrogen production system Download PDFInfo
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- CN114082248A CN114082248A CN202111308761.XA CN202111308761A CN114082248A CN 114082248 A CN114082248 A CN 114082248A CN 202111308761 A CN202111308761 A CN 202111308761A CN 114082248 A CN114082248 A CN 114082248A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/24—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by centrifugal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/16—Hydrogen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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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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- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The present disclosure relates to a hydrogen purification apparatus and a water electrolysis hydrogen production system. Wherein, hydrogen purification device includes first gas-water separator and second gas-water separator, and first gas-water separator and/or second gas-water separator include: the container body is provided with a mixture inlet, a gas outlet and a liquid outlet; and the gas-liquid separation zone is accommodated in the container body and is used for separating the mixture introduced into the container body into liquid and gas, wherein the gas-liquid separation zone comprises a plurality of blades which are arranged in parallel at intervals, a flow channel is formed between every two adjacent blades, the gas flows from the upstream to the downstream of the flow channel, and the blades are provided with a plurality of branch sections which are bent continuously in the direction of the flow channel.
Description
Technical Field
The disclosure relates to the technical field of hydrogen production by water electrolysis, in particular to a hydrogen purification device and a hydrogen production system by water electrolysis.
Background
The hydrogen produced during the hydrogen production by water electrolysis overflows from the electrolytic bath, carries part of atomized liquid and gas together, and enters a gas separation scrubber, a gas cooler and gas-water separation for gas-liquid separation, thereby achieving the purpose of primary purification.
In the correlation technique, adopt the silk screen demister to separate the mixture usually, but the silk screen demister is difficult to guarantee that the mixture is by thorough separation, can lead to the gas moisture content of the hydrogen purification device export in the hydrogen manufacturing system of water electrolysis to increase, causes the operation pressure drop unstable, and the most direct influence leads to the silica gel in the export purity analysis appearance preliminary treatment board to absorb water and discolour, if do not in time change silica gel, the micromolecule liquid drop gets into the purity analysis appearance, can damage the analysis appearance probe.
Disclosure of Invention
A first object of the present disclosure is to provide a hydrogen purification apparatus capable of at least partially solving the problems in the prior art.
The second purpose of the present disclosure is to provide a hydrogen production system by water electrolysis, which comprises the hydrogen purification device provided by the present disclosure.
In order to achieve the above object, the present disclosure provides a hydrogen purification apparatus, including a first gas-water separator and a second gas-water separator, the first gas-water separator and/or the second gas-water separator includes: the container body is provided with a mixture inlet, a gas outlet and a liquid outlet; and the gas-liquid separation area is accommodated in the container body and is used for separating the mixture introduced into the container body into liquid and gas, wherein the gas-liquid separation area comprises a plurality of blades which are arranged in parallel at intervals, a flow channel is formed between every two adjacent blades, the mixture flows from the upstream to the downstream of the flow channel, and the blades are provided with a plurality of branch sections which are continuously bent along the direction of the flow channel.
Optionally, the blade further includes a cantilever section extending laterally from the branch section, and a cavity is formed between the cantilever section and the branch section, and the cavity has an opening for the mixture to enter.
Optionally, the blade is made of one of stainless steel, carbon steel, monel, nickel, and nickel alloy.
Optionally, the liquid outlet is provided in a bottom wall of the container body, the gas outlet is provided in a top wall of the container body, and the mixture inlet is provided at a position near below a side wall of the container body.
Optionally, the gas-liquid separation zone is adjacent to and disposed below the gas outlet.
Optionally, the first gas-water separator and the second gas-water separator further comprise a liquid discharge pipeline communicated with the liquid outlet.
Optionally, the hydrogen purification device further comprises at least one oxyhydrogen gas separator, and the liquid outlet of one of the first gas-water separator and the second gas-water separator is connected with the oxyhydrogen gas separator.
Optionally, the hydrogen purification device further comprises a water collector, and the liquid outlet of one of the first gas-water separator and the second gas-water separator is connected with the water collector.
In a second aspect of the present disclosure, a hydrogen production system by water electrolysis is provided, which comprises an electrolytic cell and the above hydrogen purification device.
The present disclosure provides a hydrogen purification device, which includes a plurality of parallel and spaced blades, a flow channel for gas to flow through is formed between adjacent blades, a mixture carrying liquid enters a container body from a mixture inlet, and in the process that the mixture flows from the upstream to the downstream of the flow channel, the mixture is forced to perform rapid flow direction conversion for a plurality of times due to the stopping effect of a plurality of branch sections on the blades. Under the action of centrifugal force, the water vapor and liquid in the mixture collide with the branch section for multiple times of kinetic energy to form small liquid drops, the small liquid drops are attached to the surfaces of the blades and then form liquid films through the coalescence effect among the small liquid drops, the liquid films attached to the surfaces of the blades converge into strands on the blades under the combined action of self gravity, liquid surface tension and gas kinetic energy and flow along the blades under the action of self gravity, finally the liquid films can flow out of the liquid outlet, and the separated gas continues to flow towards the downstream of the flow channel and finally can be discharged from the gas outlet.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic structural view of a hydrogen purification apparatus provided in an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a blade provided in accordance with an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic structural view of a blade provided in another exemplary embodiment of the present disclosure.
Description of the reference numerals
1 container body 11 mixture inlet
12 gas outlet 13 liquid outlet
2 gas-liquid separation zone 21 blade
22 branch 23 cantilever section
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise specified, the use of the terms of orientation such as "upper and lower" generally means up and down in the vertical direction, with reference to the drawing of fig. 1, "top and bottom" generally means up and down in the vertical direction, with reference to the drawing of fig. 1, "upstream and downstream" means upstream and downstream in the flow direction of the gas, and "inner" and "outer" are in accordance with the self-profile of the respective components. First, second, etc. are used to distinguish one element from another, and are not necessarily sequential or significant. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.
According to a specific embodiment of the present disclosure, there is provided a hydrogen purification apparatus including a first gas-water separator and a second gas-water separator, as shown in fig. 1, one of the first gas-water separator and the second gas-water separator, or both of the first gas-water separator and the second gas-water separator may include a container body 1 and a gas-liquid separation zone 2. Wherein, the container body 1 is provided with a mixture inlet 11, a gas outlet 12 and a liquid outlet 13; the gas-liquid separation zone 2 may be accommodated inside the container body 1 for separating the mixture introduced into the container body 1 into liquid water and gas, and the separated gas and liquid water may be discharged to the outside of the container body 1 through the gas outlet 12 and the liquid outlet 13, respectively. According to some embodiments provided by the present disclosure, referring to fig. 1, the mixture inlet 11 may be opened at a position near below the side wall of the container body 1 to extend a flow path of the mixture so as to ensure that the mixture is sufficiently separated, the liquid outlet 13 may be opened at a bottom wall of the container body 1, and the gas outlet 12 may be opened at a top wall of the container body 1 to facilitate discharge of the separated gas and liquid water. In addition, a flow guide (not shown) for guiding the flow of the gas may be provided in the hydrogen purification apparatus to ensure stability of the upward flow of the gas and the mixture.
Referring to fig. 2 and 3, the gas-liquid separation zone 2 may include a plurality of vanes 21 arranged in parallel at intervals, a flow channel is formed between two adjacent vanes 21, the mixture entering the container body 1 flows from upstream to downstream of the flow channel, the vanes 21 may be used for separating the mixture, and the plurality of vanes 21 are arranged to ensure that the mixture can be sufficiently separated. Specifically, in the embodiment provided by the present disclosure, the vane 21 may be vertically arranged, and the vane 21 has a plurality of branch sections 22 bent continuously in the height direction, during the process that the mixture flows from the upstream to the downstream of the flow channel, the liquid in the mixture can adhere to the vane 21 under the stopping action of the plurality of branch sections 22, and the gas can continue to flow to the downstream of the flow channel after colliding with the plurality of branch sections 22, so that the mixture can be separated into gas and liquid water during the process of flowing through the flow channel.
Through the technical scheme, the hydrogen purification device provided by the disclosure comprises a plurality of parallel blades 21 arranged at intervals, a flow channel for flowing the mixture is formed between the adjacent blades 21, and in the process that the mixture carrying liquid drops flows from the upstream to the downstream of the flow channel, the mixture is forced to perform rapid flow direction conversion for many times due to the stopping effect of a plurality of branch sections 22 on the blades 21. Under the action of centrifugal force, the water vapor and liquid in the mixture collide with the branch sections 22 on the blades 21 for a plurality of times to form small liquid drops, the small liquid drops are attached to the surfaces of the blades 21 and then form liquid films through the coalescence effect among the liquid drops, the liquid films attached to the surfaces of the blades 21 are converged into strands on the blades 21 under the combined action of self gravity, liquid surface tension and gas kinetic energy, the liquid films flow downwards along the blades 21 under the action of self gravity and finally flow out from the liquid outlet 13 at the lower part of the container body 1, and the separated gas moves continuously towards the downstream of the flow and is finally discharged from the gas outlet 12 at the top of the container body 1. The utility model provides a hydrogen purification device has improved the separation effect to small-particle size liquid granule, avoids the moisture content increase of gas outlet 12, causes the operation pressure drop unstable, has also avoided silica gel among the purity analysis appearance preliminary treatment board to absorb water discolour effectively, or owing to do not in time change silica gel for the risk that the micromolecule liquid drop gets into the purity analysis appearance and leads to the analysis appearance probe to damage has practiced thrift equipment running cost, non-maintaining, exempts from to change.
It should be noted that fig. 1 is only a schematic diagram of a hydrogen purification apparatus, and the actual location of the gas-liquid separation zone 2 may be such that the gas or gas-liquid mixture that will flow out of the gas outlet 12 must first pass through the gas-liquid separation zone 2, i.e. it is ensured that the fluid flowing out of the gas outlet 12 is subjected to gas-liquid separation.
Referring to fig. 2 and 3, the blade 21 may further include a cantilever section 23 extending laterally from the branch section 22, and the cantilever section 23 and the branch section 22 may enclose a cavity, which may have an opening for the mixture to enter.
According to an embodiment provided by the present disclosure, as shown in fig. 2, the plurality of branches 22 on the blade 21 may be bent continuously in a zigzag manner, and the cantilever section 23 may extend from a middle portion of the branch 22 or be disposed at a junction of two adjacent branches 22, and extend obliquely from the branch 22 or from the junction toward an upstream of the flow channel, that is, the cantilever section 23 may extend obliquely toward a direction opposite to a flow direction of the mixture to stop the flow of the mixture, increase a contact area of the mixture with the blade 21 during the flow process, and improve efficiency of gas-water separation. In this embodiment, the cantilever section 23 extends out from the joint of two adjacent branch sections 22, an inverted V-shaped cavity can be formed between one of the two adjacent branch sections 22 close to the upstream and the cantilever section 23, the mixture can enter the cavity through the V-shaped structure opening and collide with the side wall of the cavity for multiple times, so as to promote the formation of a liquid film, the separated liquid can continue to flow downstream, the inverted V-shaped cavity can also prevent the liquid droplets from advancing, so as to avoid the liquid droplets from being carried by gas again, and the included angle between the two side walls of the cavity can also be smaller than 90 °, so as to ensure that the liquid droplets can timely drip down after converging, and ensure the separation effect of the mixture.
According to another embodiment provided by the present disclosure, as shown in fig. 3, a plurality of branch sections 22 on the blade 21 may also be continuously bent in a zigzag shape, and the cantilever section 23 may extend from the middle of the branch section 22 or be disposed at the connection between two adjacent branch sections 22. In this embodiment, the cantilever section 23 extends from the middle of the branch section 22, two cantilever sections 23 may be staggered on the same branch section 22, and the two cantilever sections 23 may extend respectively toward the upstream and downstream of the flow channel, the two cantilever sections 23 may surround the adjacent branch section 22 to form a cavity, the cavity has an opening, a mixture flowing through the blade 21 may enter the cavity through the opening and collide with the side wall of the cavity for multiple times, so as to promote the formation of a liquid film, the separated liquid may flow toward the liquid outlet 13 along the blade 21, the separated gas may continue to flow downstream, and the separation effect of the mixture is ensured.
In the embodiment of the present disclosure, the included angle α between two adjacent branch sections 22 may be 100 ° to 150 °, and is preferably 120 °, so as to prevent the mixture and the separated gas from continuing to flow due to too small angle between two branch sections 22 during the separation of the mixture, and to prevent the mixture from being incompletely separated due to too large included angle α.
According to some embodiments provided by the present disclosure, the blade 21 may be made of one of stainless steel, carbon steel, monel, nickel, and nickel alloy. Avoid gaseous and blade 21 to take place the reaction under operating condition, can improve blade 21's life effectively, guarantee the stability of gas-liquid separation district 2 to guarantee the separation effect to the mixture.
The first and second gas-water separators may also include a drain in communication with the liquid outlet 13 to collect liquid for separation of the mixture.
According to some embodiments provided by the present disclosure, the first and second gas-water separators may further include a drain line in communication with the liquid outlet 13 to facilitate subsequent processing of the collected liquid.
According to some embodiments provided by the present disclosure, the hydrogen purification apparatus further includes at least one oxyhydrogen gas separator, the first gas-water separator may be disposed upstream of the second gas-water separator, and the liquid outlet 13 of the first gas-water separator may be communicated with the oxyhydrogen gas separator, so as to recycle water discharged from the first gas-water separator to the oxyhydrogen gas separator for separating and washing hydrogen or alkali liquid carried by oxygen. According to some embodiments provided by the present disclosure, when the hydrogen purification apparatus provided by the present disclosure is used in a water electrolysis hydrogen production system, the first gas-water separator may be a gas cooler.
According to some embodiments provided by the present disclosure, the hydrogen purification apparatus further includes a water collector, the first gas-water separator may be disposed upstream of the second gas-water separator, and the liquid outlet 13 of the second gas-water separator may be communicated with the water collector, and the gas-water separated liquid is discharged into the water collector through the liquid outlet, so as to periodically discharge the collected liquid.
In a second aspect of the disclosure, there is provided a hydrogen production system by water electrolysis comprising an electrolytic cell and a hydrogen purification apparatus according to the above. The water electrolysis hydrogen production system has all the advantages of the hydrogen purification device provided by the disclosure, and the details are not repeated herein.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The utility model provides a hydrogen purification device, includes first gas-water separator and second gas-water separator, its characterized in that, first gas-water separator and/or second gas-water separator includes:
the container body (1) is provided with a mixture inlet (11), a gas outlet (12) and a liquid outlet (13); and
a gas-liquid separation zone (2) accommodated inside the container body (1) for separating the mixture introduced into the container body (1) into liquid and gas,
the gas-liquid separation zone (2) comprises a plurality of blades (21) arranged in parallel at intervals, a flow channel is formed between every two adjacent blades (21), the mixture flows from the upstream to the downstream of the flow channel, and the blades (21) are provided with a plurality of branch sections (22) which are bent continuously in the direction of the flow channel.
2. A hydrogen purification apparatus according to claim 1, wherein the vanes (21) further comprise cantilever sections (23) extending laterally from the leg sections (22), the cantilever sections (23) and the leg sections (22) forming a cavity therebetween, the cavity having an opening for the mixture to enter.
3. Hydrogen purification device according to claim 1 or 2, wherein the angle α between two adjacent branch sections (22) is between 100 ° and 150 °.
4. Hydrogen purification device according to claim 1, wherein the blades (21) are made of one of stainless steel, carbon steel, monel, nickel and nickel alloys.
5. Hydrogen purification device according to claim 1, wherein the liquid outlet (13) opens at the bottom wall of the container body (1), the gas outlet (12) opens at the top wall of the container body (1), and the mixture inlet (11) opens at a position close to below the side wall of the container body (1).
6. A hydrogen purification apparatus according to claim 5, wherein the gas-liquid separation zone (2) is located close to and below the gas outlet (12).
7. Hydrogen purification device according to claim 5, wherein the first and second gas-water separators further comprise a drain in communication with the liquid outlet (13).
8. A hydrogen purification apparatus according to claim 5, further comprising at least one oxyhydrogen gas separator, the liquid outlet (13) of one of the first gas-water separator and the second gas-water separator being connected to the oxyhydrogen gas separator.
9. A hydrogen purification apparatus according to claim 5, further comprising a water collector to which the liquid outlet (13) of one of the first and second gas-water separators is connected.
10. A system for producing hydrogen by water electrolysis, comprising an electrolytic cell and a hydrogen purification apparatus as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111308761.XA CN114082248A (en) | 2021-11-05 | 2021-11-05 | Hydrogen purification device and water electrolysis hydrogen production system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111308761.XA CN114082248A (en) | 2021-11-05 | 2021-11-05 | Hydrogen purification device and water electrolysis hydrogen production system |
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| CN114082248A true CN114082248A (en) | 2022-02-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181997A (en) * | 2022-05-30 | 2022-10-14 | 无锡隆基氢能科技有限公司 | Gas-liquid separator for hydrogen production and hydrogen production device |
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2021
- 2021-11-05 CN CN202111308761.XA patent/CN114082248A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181997A (en) * | 2022-05-30 | 2022-10-14 | 无锡隆基氢能科技有限公司 | Gas-liquid separator for hydrogen production and hydrogen production device |
| CN115181997B (en) * | 2022-05-30 | 2024-02-09 | 无锡隆基氢能科技有限公司 | Gas-liquid separator for hydrogen production and hydrogen production device |
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