CN114277395B - Novel electrode unit with guiding wedge-shaped structure, electrolysis unit and application - Google Patents
Novel electrode unit with guiding wedge-shaped structure, electrolysis unit and application Download PDFInfo
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- CN114277395B CN114277395B CN202111446913.2A CN202111446913A CN114277395B CN 114277395 B CN114277395 B CN 114277395B CN 202111446913 A CN202111446913 A CN 202111446913A CN 114277395 B CN114277395 B CN 114277395B
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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
Abstract
The invention provides an electrode unit with a novel guiding wedge structure, an electrolysis unit and application thereof, wherein the electrode unit with the novel guiding wedge structure comprises the following components: an electrode frame and an electrode plate; an electrode plate is arranged in the electrode frame, and the electrode plate are coaxially arranged; the electrode frame and the electrode plate form a liquid storage cavity; the electrode frame is provided with a liquid inlet runner and a gas-liquid outlet runner which are communicated with the liquid storage cavity; the electrode plate is a steel plate, and a plurality of wedge-shaped units which are arranged in a concave-convex manner are arranged on the surface of the electrode plate in the liquid storage cavity at intervals; the wedge units are uniformly distributed, and each wedge unit is arranged at an acute angle with the flowing direction of the liquid flowing through the electrode plate. According to the novel electrode unit with the guide wedge-shaped structure, due to the fact that the plurality of wedge-shaped structure units which are arranged in the concave-convex mode are arranged, the residence time of bubbles in the cavity can be reduced, the mass transfer process of hydrogen production reaction is enhanced, and the hydrogen production efficiency of the system is improved.
Description
Technical Field
The invention belongs to the technical field of hydrogen production by water electrolysis, and particularly relates to an electrode unit with a novel guide wedge-shaped structure, an electrolysis unit and application.
Background
The hydrogen energy is a novel clean energy source, and only water is finally generated in the hydrogen energy utilization process, so that pollutants and carbon dioxide emission can not be generated. Therefore, the development of hydrogen energy technology is imperative in the current large development of clean energy and the history of "carbon peak", "carbon neutralization". At present, the water electrolysis hydrogen production is the most commonly used hydrogen production method which is also the only large-scale commercial operation. The structure of the electrolytic tank determines the flow distribution of the electrolyte and has important influence on the efficiency of the electrolytic hydrogen production process. The surface of the main electrode plate inside the electrolytic cell (cell) of the filter-pressing type electrolytic cell in commercial use at present adopts a structure (emulsion convex structure) with alternate concavities and convexities, as shown in fig. 1. The design of the structure is initially designed, on one hand, the polar plates on two sides can form multipoint contact in a top-to-top mode; on the other hand, the disturbance degree of the flow is increased, the concentration difference of the electrolyte at each position in the flow channel is reduced, and the electrolyte is distributed more uniformly. However, in practical application, the electrode plate with the breast-convex structure has the following disadvantages:
1. when the alkali liquor flows in the small chamber, the concave-convex structure can generate flow vertical to the electrode plate, but the lack of transverse flow can lead to uneven distribution of the alkali liquor in the radial direction of the electrode plate, and the more serious the uneven distribution of the alkali liquor is along with the increase of the size of the electrolytic tank, the larger development of the electrolytic tank equipment is greatly hindered;
2. the concave-convex structure on the surface of the polar plate makes the polar plates on two sides be in top-to-top contact, namely, the polar plates are not completely in contact, and a large number of bubbles generated by the small chamber move to the position near the concave-convex top along with the progress of electrolysis, so that the contact resistance of the polar plates is increased, and the electrolysis energy consumption is increased;
3. when bubbles in the electrolysis unit pass through the concave-convex structure, the bubbles can be possibly blocked at the concave positions, so that the residence time of the bubbles is increased, and the electrolysis energy consumption is increased.
In summary, a new electrode plate structure is needed to overcome the defects of the existing electrode plate.
Disclosure of Invention
In view of this, an object of the present invention is to provide a novel electrode unit with a guiding wedge structure, which is used for producing hydrogen by electrolyzing water, and because a plurality of wedge-shaped structural units are arranged in a concave-convex manner, the electrode unit plays a role in transversely distributing alkali liquid flowing through the electrode unit, promotes the uniform distribution of the alkali liquid on a polar plate, and can generate fluid turbulence in two directions, namely, the vertical direction and the transverse direction, so that the turbulence degree of the flowing is greatly increased, the transportation of bubbles can be accelerated, the residence time of the bubbles in a cavity is reduced, the mass transfer process of hydrogen production reaction is enhanced, and the hydrogen production efficiency of the system is improved.
Another object of the invention is to propose an electrolysis unit.
It is a further object of the present invention to propose the use of the novel guiding wedge structured electrode unit in the field of hydrogen production by electrolysis of water.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides an electrode unit of a novel guiding wedge structure, comprising: an electrode frame and an electrode plate;
an electrode plate is arranged in the electrode frame, and the electrode plate are coaxially arranged; the electrode frame and the electrode plate form a liquid storage cavity; the electrode frame is provided with a liquid inlet runner and a gas-liquid outlet runner which are communicated with the liquid storage cavity;
the electrode plate is a steel plate, and a plurality of wedge-shaped units which are arranged in a concave-convex manner are arranged on the surface of the electrode plate in the liquid storage cavity at intervals; the wedge units are uniformly distributed, and each wedge unit is arranged at an acute angle with the flowing direction of the liquid flowing through the electrode plate.
The novel electrode unit with the guide wedge-shaped structure is used for producing hydrogen by electrolyzing water, and has the advantages that the wedge-shaped structure units which are arranged in a concave-convex mode are arranged, so that the transverse distribution effect on alkali liquid flowing through the electrode unit is realized, the uniform distribution of the alkali liquid on the polar plate is promoted, meanwhile, fluid disturbance in the vertical direction and the transverse direction can be generated, the flowing turbulence degree is greatly increased, the transportation of bubbles can be accelerated, the residence time of the bubbles in a cavity is shortened, the mass transfer process of hydrogen production reaction is enhanced, and the hydrogen production efficiency of a system is improved.
In addition, the electrode unit with the novel guiding wedge structure according to the embodiment of the invention can also have the following additional technical characteristics:
in one embodiment of the invention, the electrode frame is annular; the electrode plate is embedded in the inner circumference of the electrode frame, and the electrode plate and the electrode frame are welded into a whole.
In one embodiment of the invention, the liquid inlet runner is positioned on one side of the electrode frame facing away from the openings of the wedge-shaped units, and the gas-liquid outlet runner is positioned on one side of the electrode frame facing the openings of the wedge-shaped units.
In one embodiment of the invention, a plurality of raised wedge-shaped units are arranged in rows at intervals, and a plurality of recessed wedge-shaped units are arranged in rows at intervals; the convex wedge-shaped units arranged in the rows are parallel to the concave wedge-shaped units arranged in the rows and are arranged at intervals; the convex wedge-shaped units and the concave wedge-shaped units of two adjacent rows are arranged at intervals.
In one embodiment of the invention, the plurality of wedge-shaped units are formed on the electrode plate by cold-rolling deep drawing.
In one embodiment of the invention, each wedge-shaped element is arranged at 30-45 ° to the direction of flow of liquid from the liquid inlet channel into the electrode plate.
In one embodiment of the invention, the wedge units are each composed of two first and second members at an acute or right angle to each other; the first member or the second member is disposed at 30-45 DEG to the flow direction of the liquid entering the electrode plate from the liquid inlet flow passage.
In one embodiment of the invention, in the several raised wedge shaped units, the first member and the second member are raised in cuboid or square shape.
In one embodiment of the invention, in the plurality of concave wedge-shaped units, the first member and the second member are grooves in a cuboid or square shape.
In one embodiment of the present invention, the liquid inlet flow channel and the gas-liquid outlet flow channel are disposed opposite to each other, and the liquid inlet flow channel and the gas-liquid outlet flow channel are disposed along the depth direction of the liquid storage cavity.
To achieve the above object, a second aspect of the present invention provides an electrolysis unit comprising an electrode unit and an electrode of the novel guiding wedge structure as described above; the electrode covers the electrode plate of the electrode unit of the novel guiding wedge-shaped structure from one side of the liquid storage cavity, and the electrode is clung to the plurality of protruding wedge-shaped units.
Besides the advantages of the electrode unit with the novel guide wedge-shaped structure, the electrode is tightly attached to the convex wedge-shaped units, so that the electrode unit with the novel guide wedge-shaped structure can be tightly contacted with the surface of the electrode, and the contact resistance increase caused by the passing of bubbles is avoided.
In one embodiment of the invention, the electrode is a nickel mesh.
To achieve the above object, an embodiment of a third aspect of the present invention relates to the use of the electrode unit of the novel guiding wedge structure as described above in the field of hydrogen production by electrolysis of water.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is an electrode plate of a conventional electrolytic cell breast-feed structure.
Fig. 2 is a simplified perspective view of an electrode unit of a novel guiding wedge structure according to one embodiment of the present invention at an angle (concave wedge unit not shown).
Fig. 3 is another angular perspective view of an electrode unit of a novel guiding wedge structure according to one embodiment of the present invention (concave wedge unit not shown).
Fig. 4 is a top view of an electrode unit of a novel guiding wedge structure according to one embodiment of the present invention (concave wedge unit not shown).
Fig. 5 is an enlarged schematic view of the structure at B in fig. 4.
FIG. 6 is a schematic view of the cross-sectional structure of A-A in FIG. 4.
FIG. 7 is a schematic view of the cross-sectional structure of C-C in FIG. 4.
FIG. 8 is a schematic view of the cross-sectional structure of D-D in FIG. 4.
FIG. 9 is a schematic side view of an electrolytic cell according to one embodiment of the invention.
Reference numerals:
1-an electrode frame; 2-electrode plates; 3-a liquid inlet flow channel; 4-a gas-liquid outlet flow passage; 5-electrode; 6-wedge units; 601-a first component; 602-a second component; 7-a liquid storage cavity.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The electrode unit and the electrolytic unit of the novel guide wedge structure according to the embodiment of the present invention will be described below with reference to the accompanying drawings.
As shown in fig. 2 to 8, an electrode unit of a novel guiding wedge structure includes: an electrode frame 1 and an electrode plate 2; an electrode plate 2 is arranged in the electrode frame 1, and the electrode plate are coaxially arranged; the electrode frame 1 and the electrode plate 2 form a liquid storage cavity 7; the electrode frame 1 is provided with a liquid inlet runner 3 and a gas-liquid outlet runner 4 which are communicated with the liquid storage cavity 7; the electrode plate 2 is a steel plate, and a plurality of wedge-shaped units 6 which are arranged in a concave-convex manner are arranged on the surface of the electrode plate 2 in the liquid storage cavity 7 at intervals; the wedge-shaped units 6 are uniformly distributed, and each wedge-shaped unit 6 is arranged at an acute angle with the flow direction of the liquid flowing through the electrode plate 2.
It can be understood that when the electrolytic water is used for hydrogen production, alkali liquor enters from the liquid inlet flow channel and uniformly flows through gaps of the wedge-shaped units when flowing through the electrode plates, the wedge-shaped units are arranged in a concave-convex mode, so that the distribution effect can be achieved in the direction parallel to the surfaces of the electrode plates, and the alkali liquor can also be disturbed in the direction perpendicular to the surfaces of the electrode plates when flowing through the electrode plates due to the fact that the alkali liquor is concave-concave with the protrusions of the wedge-shaped units.
In summary, when the novel electrode unit with the guide wedge-shaped structure is used for producing hydrogen by electrolyzing water, due to the fact that the plurality of wedge-shaped structure units which are arranged in the concave-convex mode are arranged, the effect of transverse distribution is achieved on alkali liquid flowing from the liquid inlet flow channel and passing through the electrode plates, uniform distribution of the alkali liquid on the electrode plates is promoted, meanwhile, fluid turbulence in the vertical direction and the transverse direction can be generated, the flowing turbulence degree is greatly increased, bubble transportation can be accelerated, the residence time of bubbles in a cavity is shortened, the mass transfer process of hydrogen production reaction is enhanced, and the hydrogen production efficiency of a system is improved.
Optionally, the electrode frame 1 is annular; the electrode plate 2 is embedded in the inner circumference of the electrode frame 1, and the electrode plate and the electrode frame are welded into a whole.
Alternatively, as shown in fig. 2-4 and fig. 6-8, a plurality of raised wedge-shaped units 6 are arranged in rows at certain intervals, and a plurality of recessed wedge-shaped units 6 are arranged in rows at certain intervals; the convex wedge-shaped units 6 arranged in rows are parallel to the concave wedge-shaped units 6 arranged in rows and are arranged at intervals. The convex wedge-shaped units and the concave wedge-shaped units of two adjacent rows are arranged at intervals. It should be noted that the "protrusion" and the "depression" are opposite, and are both relative to the surface of the electrode plate, the former is directed to the side close to the liquid storage cavity, and the latter is directed to the side far from the liquid storage cavity. The protruding wedge units can be arranged in a plurality of rows, the recessed wedge units can be arranged in a plurality of rows, the number of rows arranged respectively is based on the size of the electrode plate, and the larger the size of the electrode plate is, the more the number of rows is, and conversely, the fewer the number of rows is. However, it is necessary to ensure that both sides of each row of raised wedge-shaped elements are immediately adjacent to a row of recessed wedge-shaped elements, and that each raised wedge-shaped element is spaced from its adjacent recessed wedge-shaped element. The spacing between two adjacent rows of wedge-shaped units may be equal to or different from the spacing between two adjacent wedge-shaped units in the same row, but preferably the spacing between two adjacent rows of wedge-shaped units is larger than the spacing between two adjacent wedge-shaped units in the same row. The spacing between two raised wedge-shaped units belonging to the same row is equal to the spacing between two recessed wedge-shaped units belonging to the same row.
Alternatively, a plurality of wedge units 6 are formed on the electrode plate 2 by cold-rolling deep drawing. It will be appreciated that by cold deep drawing the electrode plate is machined separately on opposite sides thereof, while the concave wedge-shaped elements are formed on one side of the drawing, i.e. the convex wedge-shaped elements are formed on the other side, and vice versa, such that a number of concave-convex arranged wedge-shaped elements are formed on the surface of the electrode plate, as shown in fig. 6-8.
Alternatively, as shown in fig. 2-4, each wedge-shaped element 6 is arranged at 30-45, preferably 45, to the direction of flow of liquid from the liquid inlet channel 3 into the electrode plate 2, as shown in fig. 5. Further, as shown in fig. 5, the plurality of wedge-shaped units 6 are each composed of two first members 601 and second members 602 which are at an acute angle or a right angle to each other; the first member 601 or the second member 602 is arranged at 30-45 deg., preferably 45 deg., to the flow direction of the liquid entering the electrode plate 2 from the liquid inlet flow channel 3. Preferably, in the wedge-shaped units 6 of the plurality of protrusions, the first member 601 and the second member 602 are protrusions having a rectangular parallelepiped or square shape, preferably rectangular parallelepiped shape. In the plurality of concave wedge-shaped units 6, the first member 601 and the second member 602 are rectangular or square-shaped grooves, preferably rectangular-shaped grooves. It will be appreciated that the first member 601 and the second member 602 are rectangular or square, and the surfaces thereof are smooth, which reduces the fluid resistance. However, the first member 601 and the second member 602 may have a non-smooth surface, so that the wedge-shaped unit may also function as a liquid disturbance in the lateral and vertical directions, but may have a weak effect of reducing the fluid resistance.
Optionally, the liquid inlet runner 3 and the gas-liquid outlet runner 4 are both arranged on the surface of the electrode frame 1, which is far away from the electrode plate and is positioned on one side in the liquid storage cavity 7, and are oppositely arranged; the liquid inlet flow channel 3 and the gas-liquid outlet flow channel 4 are both arranged along the depth direction of the liquid storage cavity 7. Preferably, the liquid inlet flow channel 3 is located on a side of the electrode frame 1 facing away from the openings of the plurality of wedge-shaped units, and the gas-liquid outlet flow channel 4 is located on a side of the electrode frame 1 facing the openings of the plurality of wedge-shaped units (i.e., on a side where the first member 601 and the second member 602 form an acute angle or a right angle with each other). Thus, when the liquid flowing in from the liquid inlet flow channel 3 flows through the electrode plate, the liquid is subjected to a distribution process from narrow to wide once through each row of concave wedge-shaped units or convex wedge-shaped units, so that the uniformity of liquid distribution can be improved.
When in use, the electrode unit with the novel guiding wedge structure of the embodiment of the invention is fastened with the nickel screen electrode 5 covered on one side of the liquid storage cavity (the nickel screen electrode 5 is covered on the electrode plate 2) to form a corresponding electrolysis cell (electrolysis unit), as shown in fig. 4. Raw material alkali liquor flows in through an alkali liquor inlet runner 3, hydrogen or oxygen is generated in the electrolysis unit through electrolytic reaction, and then a mixture of the alkali liquor and the gas flows out from a gas-liquid outlet runner 4 and enters the next working section. In the whole working process, the wedge-shaped structural units which are arranged in a concave-convex way play a role in transversely distributing the alkali liquor flowing through, so that the uniform distribution of the alkali liquor on the electrode plates is promoted; meanwhile, the concave-convex arranged wedge-shaped structural units can generate fluid disturbance in the vertical direction and the transverse direction, so that the flow turbulence degree is greatly increased, the transportation of bubbles can be accelerated, the residence time of the bubbles in a cavity is shortened, the mass transfer process of the hydrogen production reaction is enhanced, and the hydrogen production efficiency of the system is improved.
The electrode unit with the novel guide wedge-shaped structure can be used in the field of water electrolysis hydrogen production, such as an electrolysis unit, an electrolysis hydrogen production system and the like.
As shown in fig. 9, an electrolysis unit comprising the electrode unit and the electrode 5 of the novel guide wedge structure of the above embodiment; the electrode 5 covers the electrode plate 2 of the electrode unit with the novel guiding wedge structure from one side of the liquid storage cavity 7, and the electrode 5 is clung to the plurality of raised wedge units 6. Wherein the electrode 5 may be a metal mesh, preferably a nickel mesh.
A preferred embodiment of the present invention is described below with reference to fig. 2-9.
As shown in fig. 2-8, the electrode unit with the novel guiding wedge structure comprises an annular steel electrode frame 1, and an electrode plate 2 is welded in the inner circumference of the electrode frame 1. The electrode plate 2 and the electrode frame 1 are arranged in parallel with the horizontal plane, and the upper surface of the electrode plate 2 and the side wall of the electrode frame 1 form a liquid storage cavity 7. The electrode plate 2 is a steel plate, a plurality of concave-convex wedge units 6 are uniformly distributed on the upper surface of the electrode plate 2, specifically, a first row of concave wedge units 6, a first row of convex wedge units 6, a second row of concave wedge units 6 and a second row of convex wedge units 6 and … … are sequentially arranged on the surface of the electrode plate 2 from the side close to the liquid inlet flow channel 3, and the concave wedge units 6 and the convex wedge units 6 which are arranged in a row are arranged at intervals and are parallel until the side close to the gas-liquid outlet flow channel 4; each row of concave wedge-shaped units 6 consists of a plurality of concave wedge-shaped units 6 arranged at a certain interval, each row of convex wedge-shaped units 6 consists of a plurality of convex wedge-shaped units 6 arranged at a certain interval, the interval between every two adjacent rows of wedge-shaped units 6 is larger than the interval between every two adjacent wedge-shaped units 6 in the same row, and every two adjacent rows of convex wedge-shaped units 6 and concave wedge-shaped units 6 are arranged at intervals. As shown in fig. 2-5, each wedge-shaped unit 6 is formed by two rectangular solids with smooth surfaces, which are 90 deg. to each other (i.e. the first member 601 and the second member 602 are both rectangular solids with smooth surfaces), the wedge-shaped units 6 being oriented at an angle of 45 deg. to the flow direction of the lye body. The wedge units 6 are formed on the surface of the electrode plate 2 in a cold-rolling deep drawing mode. The two opposite sides of the top of the electrode frame 1 are respectively provided with a liquid inlet runner 3 and a gas-liquid outlet runner 4, the liquid inlet runner 3 and the gas-liquid outlet runner 4 are both in a combined pattern of a cylinder and a cuboid, and one side, which is close to the liquid storage cavity, is in a cuboid shape. The depth of the cuboid-shaped parts of the liquid inlet flow channel 3 and the gas-liquid outlet flow channel 4 extends from the top of the electrode frame 1 to the upper surface of the electrode plate 2, the depth of the cylindrical parts extends from the top of the electrode frame 1 to the bottom of the electrode frame, and the lengths of the liquid inlet flow channel 3 and the gas-liquid outlet flow channel 4 extend from the middle part of the electrode frame 1 to the liquid storage cavity 7 and are communicated with the liquid storage cavity 7. The liquid inlet flow channel 3 is located on the side of the electrode frame 1 facing away from the openings of the plurality of wedge-shaped units, and the gas-liquid outlet flow channel 4 is located on the side of the electrode frame 1 facing the openings of the plurality of wedge-shaped units (i.e. on the side where the first member 601 and the second member 602 form an acute angle or a right angle with each other).
In use, as shown in fig. 9, the electrode unit of the novel guiding wedge structure of the present embodiment is fastened with the nickel mesh electrode 5 (the nickel mesh electrode 5 is covered on the electrode plate 2) covered on the side of the liquid storage cavity to form a corresponding electrolysis cell (electrolysis unit). Raw material alkali liquor flows in through an alkali liquor inlet runner, hydrogen or oxygen is generated in the electrolysis unit through electrolytic reaction, and then a mixture of the alkali liquor and the gas flows out from a gas-liquid outlet runner 4 and enters the next working section. Because the electrode plate is horizontally arranged, the top of the wedge-shaped unit is of a horizontal structure, the nickel screen electrode is tightly attached to the convex wedge-shaped units of the electrode plate, the tight contact between the nickel screen electrode and the surface of the electrode plate 2 is realized, and the increase of contact resistance caused by the passing of bubbles is avoided.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. An electrode unit of a guiding wedge structure, comprising: an electrode frame and an electrode plate;
an electrode plate is arranged in the electrode frame, and the electrode plate are coaxially arranged; the electrode frame and the electrode plate form a liquid storage cavity; the electrode frame is provided with a liquid inlet runner and a gas-liquid outlet runner which are communicated with the liquid storage cavity;
the electrode plate is a steel plate, and a plurality of wedge-shaped units which are arranged in a concave-convex manner are arranged on the surface of the electrode plate in the liquid storage cavity at intervals; the wedge-shaped units are uniformly distributed, and each wedge-shaped unit is arranged at an acute angle with the flowing direction of the liquid flowing through the electrode plate;
the wedge-shaped units are composed of two first components and second components which form an acute angle or a right angle with each other; the first component or the second component is arranged at 30-45 degrees with the flowing direction of the liquid entering the electrode plate from the liquid inlet flow channel;
in the wedge-shaped units with a plurality of bulges, the first component and the second component are bulges which are rectangular or square;
in the plurality of concave wedge-shaped units, the first component and the second component are grooves which are rectangular or square;
the liquid inlet runner and the gas-liquid outlet runner are oppositely arranged;
the plurality of convex wedge-shaped units are arranged in rows at certain intervals, and the plurality of concave wedge-shaped units are arranged in rows at certain intervals; the convex wedge-shaped units arranged in the rows are parallel to the concave wedge-shaped units arranged in the rows and are arranged at intervals.
2. The electrode unit of a guide wedge structure according to claim 1, wherein the electrode frame is ring-shaped; the electrode plate is embedded in the inner circumference of the electrode frame, and the electrode plate and the electrode frame are welded into a whole;
and/or the liquid inlet runner is positioned on one side of the electrode frame, which faces away from the openings of the wedge-shaped units, and the gas-liquid outlet runner is positioned on one side of the electrode frame, which faces the openings of the wedge-shaped units.
3. The electrode unit of a guide wedge structure according to claim 1, wherein the convex wedge units and the concave wedge units of adjacent two rows are arranged at intervals;
and/or the wedge units are formed on the electrode plate in a cold-rolling deep drawing mode.
4. The electrode unit of claim 1, wherein each wedge unit is disposed at 30-45 ° to the direction of flow of liquid entering the electrode plate from the liquid inlet flow channel.
5. The electrode unit of claim 1, wherein the liquid inlet flow channel and the gas-liquid outlet flow channel are both disposed along a depth direction of the liquid storage chamber.
6. An electrolysis cell comprising an electrode unit of a guiding wedge structure according to any one of claims 1 to 5 and an electrode; the electrode covers the electrode plate of the electrode unit of the guiding wedge-shaped structure from one side of the liquid storage cavity, and the electrode is tightly attached to the plurality of protruding wedge-shaped units.
7. The electrolysis cell of claim 6, wherein the electrode is a nickel screen.
8. Use of an electrode unit of a guiding wedge structure as claimed in any one of claims 1 to 5 in the field of hydrogen production by electrolysis of water.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550552A (en) * | 2009-05-20 | 2009-10-07 | 王可全 | Hydrogen-oxygen mixed gas generator |
| CN201424509Y (en) * | 2009-05-20 | 2010-03-17 | 王可全 | Polar plate of electrolysis bath |
| CN102828199A (en) * | 2012-08-31 | 2012-12-19 | 苏州竞立制氢设备有限公司 | Electrode plate of hydrogen production by water electrolysis and production method |
| CN104584302A (en) * | 2012-06-20 | 2015-04-29 | 索尔维公司 | Bipolar electrode and method for producing same |
| CN111668508A (en) * | 2020-06-16 | 2020-09-15 | 氢源科技(赣州)有限公司 | Flow channel structure of bipolar plate of hydrogen fuel cell |
| CN211972465U (en) * | 2019-10-30 | 2020-11-20 | 考克利尔竞立(苏州)氢能科技有限公司 | Water electrolysis bath polar plate |
| CN112002918A (en) * | 2020-08-21 | 2020-11-27 | 一汽解放汽车有限公司 | Bipolar plate assembly and fuel cell |
| CN113270607A (en) * | 2021-05-19 | 2021-08-17 | 大连海事大学 | Bipolar plate assembly for hydrogen-oxygen fuel cell |
| CN113463121A (en) * | 2021-07-15 | 2021-10-01 | 华电重工股份有限公司 | Electrolytic cell and electrolytic hydrogen production method |
-
2021
- 2021-11-30 CN CN202111446913.2A patent/CN114277395B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550552A (en) * | 2009-05-20 | 2009-10-07 | 王可全 | Hydrogen-oxygen mixed gas generator |
| CN201424509Y (en) * | 2009-05-20 | 2010-03-17 | 王可全 | Polar plate of electrolysis bath |
| CN104584302A (en) * | 2012-06-20 | 2015-04-29 | 索尔维公司 | Bipolar electrode and method for producing same |
| CN102828199A (en) * | 2012-08-31 | 2012-12-19 | 苏州竞立制氢设备有限公司 | Electrode plate of hydrogen production by water electrolysis and production method |
| CN211972465U (en) * | 2019-10-30 | 2020-11-20 | 考克利尔竞立(苏州)氢能科技有限公司 | Water electrolysis bath polar plate |
| CN111668508A (en) * | 2020-06-16 | 2020-09-15 | 氢源科技(赣州)有限公司 | Flow channel structure of bipolar plate of hydrogen fuel cell |
| CN112002918A (en) * | 2020-08-21 | 2020-11-27 | 一汽解放汽车有限公司 | Bipolar plate assembly and fuel cell |
| CN113270607A (en) * | 2021-05-19 | 2021-08-17 | 大连海事大学 | Bipolar plate assembly for hydrogen-oxygen fuel cell |
| CN113463121A (en) * | 2021-07-15 | 2021-10-01 | 华电重工股份有限公司 | Electrolytic cell and electrolytic hydrogen production method |
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