CN115852413A - Non-uniform bipolar type nipple plate for electrolytic hydrogen production - Google Patents
Non-uniform bipolar type nipple plate for electrolytic hydrogen production Download PDFInfo
- Publication number
- CN115852413A CN115852413A CN202211671740.9A CN202211671740A CN115852413A CN 115852413 A CN115852413 A CN 115852413A CN 202211671740 A CN202211671740 A CN 202211671740A CN 115852413 A CN115852413 A CN 115852413A
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- Prior art keywords
- mastoid
- base plate
- substrate
- area
- mastoids
- Prior art date
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000001257 hydrogen Substances 0.000 title claims abstract description 44
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 210000002445 nipple Anatomy 0.000 title description 2
- 210000001595 mastoid Anatomy 0.000 claims abstract description 136
- 239000003792 electrolyte Substances 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 72
- 238000005868 electrolysis reaction Methods 0.000 claims description 19
- 210000000481 breast Anatomy 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a non-uniform bipolar type mastoid plate for electrolytic hydrogen production, which comprises: the base plate, be equipped with the electrolyte import on the lower border of base plate, be equipped with the hydrogen export on the last border right side of base plate openly, be equipped with the oxygen export on the last border left side reverse side of base plate, be equipped with a plurality of mastoid process on the base plate, one side surface of the base plate at mastoid process place is protruding, opposite side surface depression, the density of the regional mastoid process in base plate middle part is greater than the density of the regional mastoid process in base plate left side, the density of the regional mastoid process in base plate middle part is greater than the density of the regional mastoid process in base plate right side, be equipped with the one-way salient point of a plurality of in the base plate left side region, the front of the base plate at one-way salient point place is sunken, the reverse side is protruding, the protruding height that highly is less than each mastoid on the base plate of one-way salient point. The non-uniform bipolar mastoid plate can ensure that the flow field on the surface of the mastoid plate is uniformly distributed.
Description
Technical Field
The invention relates to the field of electrolytic hydrogen production, in particular to a non-uniform bipolar type mastoid plate for electrolytic hydrogen production.
Background
The structure of the polar plate in the electrolytic cell for hydrogen production by water electrolysis comprises an mastoid plate, mastoids are stamped on the mastoid plate and used for fixing a nickel net to form an electron transmission channel, and a space for electrolyte to flow is formed between the mastoid plate and a diaphragm. The mastoids on the existing mastoid plate are uniformly and symmetrically distributed and have the same size, the structure causes the non-uniformity of the electrolyte flow on the surface of the mastoid plate, the flow velocity of the middle area of the mastoid plate is relatively large (according with the common sense that the distance between two points is shortest and most labor-saving), the flow velocity of the left side area and the right side area of the mastoid plate is small, and the bubbles in the area with low flow velocity are easy to accumulate to reduce the electrolysis efficiency; the uneven flow makes the temperature inside the electrolytic cell uneven, and the temperature control is more difficult.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a non-uniform bipolar type mastoid plate for electrolytic hydrogen production, which can improve the distribution uniformity of the flow field on the surface of the mastoid plate.
In order to solve the problems, the technical scheme adopted by the invention is as follows: a non-uniform bipolar mastoid plate for electrolytic hydrogen production, comprising: the base plate is provided with the electrolyte import on the lower border of base plate, is provided with the hydrogen export on the upper border right side of base plate openly, is provided with the oxygen export on the upper border left side reverse side of base plate, and it has a plurality of mastoid process to punch on the base plate, and protruding, the opposite side surface depression of a side surface of the base plate at mastoid process place, its characterized in that: the density of the mastoids in the middle area of the substrate is greater than that in the left area of the substrate, the density of the mastoids in the middle area of the substrate is greater than that in the right area of the substrate, a plurality of unidirectional protruding points are arranged in the left area of the substrate, the front surface of the substrate where the unidirectional protruding points are located is concave, the back surface of the substrate is convex, and the protrusion height of the unidirectional protruding points is smaller than that of each mastoid on the substrate.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the mastoids in each area are horizontally and vertically arranged, and the mastoids in each horizontal row and each vertical column in each area are alternately arranged in sequence by forming a protrusion on the front surface of the base plate and forming a protrusion on the back surface of the base plate.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the upper and lower distances and the left and right distances between each adjacent mastoid on the middle area of the base plate are equal.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is provided, wherein: the upper and lower distances and the left and right distances between the adjacent mastoids on the left side region of the base plate are equal.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is provided, wherein: the upper and lower distances and the left and right distances between the respective adjacent mastoids on the right side area of the base plate are equal.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the left-right distance between each adjacent mastoid in the middle region of the base plate gradually increases from the middle to both sides.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the left-right distance between the adjacent mastoids in the left side region of the base plate gradually increases from the inside to the outside.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the left-right distance between the respective adjacent mastoids in the right side region of the base plate gradually increases from the inside to the outside.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the up-down distance between each adjacent mastoid in the middle area of the base plate gradually increases from bottom to top.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the up-down distance between each adjacent mastoid in the left side area of the base plate gradually increases from bottom to top.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the up-down distance between each adjacent mastoid in the right side area of the base plate gradually increases from bottom to top.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is provided, wherein: the heights of the protrusions of all the mastoids on the substrate are equal, the outer contour diameters of the protrusions of all the mastoids on the middle area of the substrate are A, the outer contour diameters of the protrusions of all the mastoids on the left area of the substrate are C, the outer contour diameters of the protrusions of all the mastoids on the right area of the substrate are B, B is greater than A, and C is greater than A.
Further, the non-uniform bipolar type breast protruding plate for electrolytic hydrogen production is described in the foregoing, wherein: the left and right distances between each adjacent mastoid in the middle area of the substrate are V1, the up and down distances between each adjacent mastoid in the middle area of the substrate are K1, the left and right distances between each adjacent mastoid in the left area of the substrate are V3, the up and down distances between each adjacent mastoid in the left area of the substrate are K3, the left and right distances between each adjacent mastoid in the right area of the substrate are V2, the up and down distances between each adjacent mastoid in the right area of the substrate are K2, V2 is greater than V1, V3 is greater than V1 or K2 is greater than K1, and K3 is greater than K1.
The invention has the advantages that: the density of the mastoids in the middle area of the substrate on the non-uniform bipolar mastoid plate is greater than that of the mastoids in the left area of the substrate, and the density of the mastoids in the middle area of the substrate is greater than that of the mastoids in the right area of the substrate, so that the flow resistance of the middle area of the mastoid plate is greater, the distribution of electrolyte is relatively less, the flow velocity of the middle area can be reduced, the density of the mastoids on the left side and the right side of the mastoid plate is less, the flow resistance is relatively less, the distribution of electrolyte is relatively more compared with the original design, the flow velocity of the left side and the right side of the mastoid plate can be improved, the flow velocity difference between the middle area and the left area, and between the middle area and the right area of the mastoid plate surface can be reduced, and the electrolyte can flow on the surface of the mastoid plate more uniformly; in addition, because the plurality of unidirectional salient points are arranged in the left area of the substrate, the front surface of the substrate where the unidirectional salient points are located is sunken, and the back surface of the substrate is protruded, so that the difference of the flow rates of the electrolyte flowing through the left area and the right area of the substrate can be reduced.
Drawings
FIG. 1 is a schematic structural diagram of a non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to the present invention.
FIG. 2 is a rear view of the non-uniform bipolar mastoid plate shown in FIG. 1.
FIG. 3 is another schematic diagram of the structure of the non-uniform bipolar type mastoid plate for hydrogen production by electrolysis.
FIG. 4 is a schematic diagram of another structure of the non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to the present invention.
FIG. 5 is a schematic diagram of another structure of the non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to the present invention.
FIG. 6 is a schematic sectional view of a non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, a non-uniform bipolar type mastoid plate for hydrogen production by electrolysis, comprising: the substrate 1, in this embodiment, the substrate 1 is a circular plate, the lower edge of the substrate 1 is provided with an electrolyte inlet 2, the upper edge of the substrate 1 is provided with a hydrogen outlet 31 on the right front side, the upper edge of the substrate 1 is provided with an oxygen outlet 32 on the left back side, the substrate 1 is stamped with a plurality of mastoids 4, one side surface of the substrate 1 where the mastoids 4 are located protrudes, the other side surface is recessed, the density of the mastoids 4 in the middle area 5 of the substrate is greater than that of the mastoids 4 in the left area 7 of the substrate, the density of the mastoids 4 in the middle area 5 of the substrate is greater than that of the mastoids 4 in the right area 6 of the substrate, the left area 7 of the substrate 1 is provided with a plurality of unidirectional protruding points 8, the front side of the substrate 1 where the unidirectional protruding points 8 are located is recessed, and the back side of the substrate is protruding, and the protruding height of the unidirectional protruding points 8 is less than that of the respective mastoids 4 on the substrate 1.
On the front of base plate 1, because hydrogen outlet 31 is located the upper end of base plate 1 right side region 6, make electrolyte flow to right side region 6 easily, the electrolyte that flows to left side region 7 can significantly reduce like this, thereby can reduce the electrolysis efficiency of left side region 7, in order to dwindle the difference of electrolyte flow in left side region 7 and right side region 6, be provided with a plurality of unilateral salient point 8 in left side region 7, and make every unilateral salient point 8 form a recess on the front of base plate 1, make the electrolyte that holds more of left side region 7 of base plate 1 front like this, thereby can better drainage electrolyte, make the electrolyte that flows to right side region 6 can reduce, the electrolyte that flows to left side region 7 can increase.
On the reverse side of the substrate 1, since the oxygen outlet 32 is located at the upper end of the left side area 7, the electrolyte can easily flow to the left side area 7, so that the electrolyte flowing to the right side area 6 can be greatly reduced, thereby reducing the electrolysis efficiency of the right side area 6, in order to reduce the difference between the electrolyte flow rates in the left side area 7 and the right side area 6, a plurality of unidirectional salient points 8 are arranged in the left side area 7, and each unidirectional salient point 8 forms a salient point on the reverse side of the substrate 1, each salient point can block the electrolyte from flowing through the left side area 7, so that the electrolyte flowing to the left side area 7 can be reduced, and the electrolyte flowing to the right side area 6 can be increased.
In the present embodiment, the respective mastoids 4 in each area are horizontally and vertically arranged, and the respective mastoids 4 in each horizontal row and each vertical column in each area are alternately arranged in sequence with one forming a protrusion on the front surface of the base plate 1 and one forming a protrusion on the back surface of the base plate 1.
Fig. 1 and 2 are schematic structural diagrams of a non-uniform bipolar mastoid plate, wherein in fig. 1 and 2, the up-down distance and the left-right distance between each adjacent mastoid 4 on the middle area 5 of the base plate 1 are equal and are S1. The distance between adjacent mastoids 4 on the left side region 7 of the base plate 1 is equal to the distance between adjacent mastoids S3. The up-down distance and the left-right distance between every two adjacent mastoids 4 on the right side area 6 of the base plate 1 are equal and are S2; s1 is more than S3, and S1 is more than S2.
Fig. 3 is another schematic view showing the structure of a non-uniform bipolar type mastoid plate, in fig. 3, the left-right distance between each adjacent mastoid 4 in the middle area 5 of the base plate 1 gradually increases from the middle to both sides, and V1 < V2 < V3. The left-right distance between each adjacent mastoid 4 in the left region 7 of the base plate 1 gradually increases from inside to outside, and M1 < M2 < M3 < M4. The left-right distance between each adjacent mastoid 4 in the right area 6 of the base plate 1 is gradually enlarged from inside to outside, and N1 is more than N2 and less than N3 and more than N4 and less than N5.
Fig. 4 is a schematic view showing another structure of a non-uniform bipolar mastoid plate, in fig. 4, the left and right distances between adjacent mastoids 4 in the middle area 5 of the substrate 1 are all V1, the up and down distances between adjacent mastoids 4 in the middle area of the substrate 1 are all K1, the left and right distances between adjacent mastoids 4 in the left area 7 of the substrate 1 are all V3, the up and down distances between adjacent mastoids 4 in the left area 7 of the substrate 1 are all K3, the left and right distances between adjacent mastoids 4 in the right area 6 of the substrate 1 are all V2, the up and down distances between adjacent mastoids 4 in the right area 6 of the substrate 1 are all K2, V2 > V1, V3 > V1, K2 > K1, and K3 > K1.
Fig. 5 is a schematic view showing another structure of the non-uniform bipolar mastoid plate, in fig. 5, the distance between adjacent mastoids 4 in the middle area 5 of the base plate 1 gradually increases from bottom to top, and A1 < A2 < A3 < A4 < A5. The up-down distance between each adjacent mastoid 4 in the left area 7 of the base plate 1 gradually increases from bottom to top, and C1 is more than C2 and more than C3 and more than C4 and more than C5. The up-down distance between each adjacent mastoid 4 in the right area 6 of the base plate 1 gradually increases from bottom to top, and B1 is more than B2 and less than B3 and more than B4 and less than B5.
As shown in FIG. 5, the protrusions of the mastoids 4 on the substrate 1 have equal heights, the protrusions of the mastoids 4 on the middle area 5 of the substrate 1 have A outer contour diameters, the protrusions of the mastoids 4 on the left area 7 of the substrate 1 have C outer contour diameters, and the protrusions of the mastoids 4 on the right area 6 of the substrate 1 have B outer contour diameters, B > A, C > A.
Claims (13)
1. A non-uniform bipolar type mastoid plate for electrolytic hydrogen production, comprising: the base plate is provided with the electrolyte import on the lower border of base plate, is provided with the hydrogen export on the upper border right side of base plate is openly, is provided with the oxygen export on the upper border left side reverse of base plate, and it has a plurality of mastoid process to punch on the base plate, and one side surface of the base plate at mastoid process place is protruding, opposite side surface is sunken, its characterized in that: the density of the mastoids in the middle area of the substrate is greater than that in the left area of the substrate, the density of the mastoids in the middle area of the substrate is greater than that in the right area of the substrate, a plurality of unidirectional protruding points are arranged in the left area of the substrate, the front surface of the substrate where the unidirectional protruding points are located is concave, the back surface of the substrate is convex, and the protrusion height of the unidirectional protruding points is smaller than that of each mastoid on the substrate.
2. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 1, wherein: the mastoids in each area are horizontally and vertically arranged, and the mastoids in each horizontal row and each vertical row in each area are alternately arranged in sequence by forming a protrusion on the front surface of the base plate and forming a protrusion on the back surface of the base plate.
3. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 2, wherein: the upper and lower distances and the left and right distances between each adjacent mastoid on the middle area of the substrate are equal.
4. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 2, wherein: the upper and lower distances and the left and right distances between the adjacent mastoids on the left side region of the base plate are equal.
5. A non-uniform bipolar lactoprene panel for electrolytic hydrogen production according to claim 2, wherein: the upper and lower distances and the left and right distances between the respective adjacent mastoids on the right side area of the base plate are equal.
6. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 2, wherein: the left and right distances between the adjacent mastoids in the middle region of the base plate gradually increase from the middle to both sides.
7. A non-uniform bipolar lactoprene panel for electrolytic hydrogen production according to claim 2, wherein: the left-right distance between the adjacent mastoids in the left side region of the base plate gradually increases from the inside to the outside.
8. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 2, wherein: the left-right distance between the respective adjacent mastoids in the right side region of the base plate gradually increases from the inside to the outside.
9. A non-uniform bipolar lactoprene panel for electrolytic hydrogen production according to claim 2, wherein: the upper and lower distances between the adjacent mastoids in the middle region of the base plate gradually increase from bottom to top.
10. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 2, wherein: the up-down distance between each adjacent mastoid in the left side area of the base plate gradually increases from bottom to top.
11. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 2, wherein: the upper and lower distances between the respective adjacent mastoids in the right side region of the base plate gradually increase from bottom to top.
12. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 2, wherein: the heights of the protrusions of all the mastoids on the substrate are equal, the outer contour diameters of the protrusions of all the mastoids on the middle area of the substrate are A, the outer contour diameters of the protrusions of all the mastoids on the left area of the substrate are C, the outer contour diameters of the protrusions of all the mastoids on the right area of the substrate are B, B is greater than A, and C is greater than A.
13. The non-uniform bipolar type mastoid plate for hydrogen production by electrolysis according to claim 2, wherein: the left and right distances between each adjacent mastoid in the middle area of the substrate are V1, the up and down distances between each adjacent mastoid in the middle area of the substrate are K1, the left and right distances between each adjacent mastoid in the left area of the substrate are V3, the up and down distances between each adjacent mastoid in the left area of the substrate are K3, the left and right distances between each adjacent mastoid in the right area of the substrate are V2, the up and down distances between each adjacent mastoid in the right area of the substrate are K2, V2 is greater than V1, V3 is greater than V1 or K2 is greater than K1, and K3 is greater than K1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211671740.9A CN115852413B (en) | 2022-12-26 | 2022-12-26 | Non-uniform bipolar mastoid plate for electrolytic hydrogen production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211671740.9A CN115852413B (en) | 2022-12-26 | 2022-12-26 | Non-uniform bipolar mastoid plate for electrolytic hydrogen production |
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| Publication Number | Publication Date |
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| CN115852413A true CN115852413A (en) | 2023-03-28 |
| CN115852413B CN115852413B (en) | 2023-12-08 |
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| EP1469103A2 (en) * | 1999-05-10 | 2004-10-20 | Ineos Chlor Enterprises Limited | Gaskets for use with electrode structures |
| US20070207366A1 (en) * | 2004-03-30 | 2007-09-06 | Stefan Sommer | Bipolar Plate And Its Use, As Well As A Method For Its Manufacture And An Electrochemical System Containing The Bipolar Plate |
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2022
- 2022-12-26 CN CN202211671740.9A patent/CN115852413B/en active Active
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