CN115763930A - Cell stack pressure device - Google Patents
Cell stack pressure device Download PDFInfo
- Publication number
- CN115763930A CN115763930A CN202211464882.8A CN202211464882A CN115763930A CN 115763930 A CN115763930 A CN 115763930A CN 202211464882 A CN202211464882 A CN 202211464882A CN 115763930 A CN115763930 A CN 115763930A
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- China
- Prior art keywords
- cell stack
- plate
- pressing plate
- bearing plate
- pressing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004062 sedimentation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02E60/50—Fuel cells
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- Fuel Cell (AREA)
Abstract
The invention relates to the technical field of a cell stack pressurizing device, and provides a cell stack pressurizing device, which at least comprises: the pressing machine is provided with a pressing head and a pressing plate which are connected, and the pressing head is suitable for driving the pressing plate to pressurize the cell stack; and the buffer part is suitable for being arranged between the pressing plate and the cell stack, and the buffer part has elasticity so as to reduce the impact action when the pressing plate applies load to the cell stack. According to the cell stack pressurizing device provided by the invention, when the cell stack is pressurized, the buffer piece is arranged between the pressing plate and the cell stack, and the buffer piece has elasticity, so that the impact effect of the pressing plate on the cell stack when a load is applied to the cell stack can be reduced, and the cell stack is not easily damaged.
Description
Technical Field
The invention relates to the technical field of cell stack pressurizing devices, in particular to a cell stack pressurizing device.
Background
After the molten carbonate fuel cell is assembled, a load is applied, and the load is 2-3kg/cm 2 After the molten carbonate fuel cell is assembled, the molten carbonate fuel cell needs to be placed into a high-temperature heating furnace for roasting, organic matters can be removed, electrolyte is immersed into the diaphragm electrode, sedimentation of a cell stack exists in the roasting process, and the sedimentation process still needs to be 2-3kg/cm 2 The load of (2). In the prior art, a press is generally adopted to directly pressurize a cell stack, however, the sedimentation of the cell stack is a slow process, and the direct application of pressure can generate a large impact effect on the cell stack, so that the cell stack is easily damaged.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is that a press is generally adopted to directly pressurize a cell stack in the prior art, but the sedimentation of the cell stack is a slow process, and the direct application of pressure can generate a large impact effect on the cell stack, which is easy to damage the cell stack, thereby providing a cell stack pressurizing device.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a stack pressurization device comprising at least: the pressing machine is provided with a pressing head and a pressing plate which are connected, and the pressing head is suitable for driving the pressing plate to pressurize the cell stack; and the buffer part is suitable for being arranged between the pressing plate and the cell stack, and the buffer part has elasticity so as to reduce the impact action when the pressing plate applies load to the cell stack.
Furthermore, the cell stack pressurizing device also comprises a first bearing plate which is suitable for being arranged on the bearing surface of the cell stack, and the plate surface of the first bearing plate is parallel to the plate surface of the pressing plate; the buffer piece is positioned between the first bearing plate and the pressing plate.
Further, the bolster is coil spring, first force bearing plate with coil spring between the clamp plate has a plurality ofly, and is a plurality of coil spring is the array setting.
Furthermore, the cell stack pressurizing device also comprises a guide rod which is arranged along the pressurizing direction of the pressing plate, and one end of the guide rod sequentially penetrates through the pressing plate and the surface of the first bearing plate and is fixed to the surface of the workbench, so that the pressing plate and the first bearing plate are kept parallel in the pressurizing process.
Furthermore, the guide rods comprise four guide rods which are respectively arranged at four vertex angles of the pressing plate.
Furthermore, the cell stack pressurizing device also comprises a second force bearing plate which is arranged on the surface of the workbench and is suitable for placing the cell stack, and the cell stack is positioned between the first force bearing plate and the second force bearing plate during pressurizing.
The technical scheme of the invention has the following advantages:
according to the cell stack pressurizing device provided by the invention, the buffer piece is arranged between the pressing plate and the cell stack during pressurizing, and the buffer piece has elasticity, so that the impact effect of the pressing plate on the cell stack during loading can be reduced, and the cell stack is not easily damaged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a stack pressurization device in an embodiment of the present invention;
FIG. 2 is an enlarged view of the FIG. 1 cushioning member;
fig. 3 is an enlarged view of the guide bar of fig. 1.
Description of reference numerals:
1. a press; 2. a pressure head; 3. pressing a plate; 4. a buffer member; 5. a first force bearing plate; 6. a second bearing plate; 7. a guide bar; 8. a work table; 9. a cell stack; 10. and (4) bolts.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic view of a stack pressurization device in an embodiment of the present invention; as shown in fig. 1, the present embodiment provides a stack pressurizing apparatus, which at least includes: the pressing machine 1 is provided with a pressing head 2 and a pressing plate 3 which are connected, and the pressing head 2 is suitable for driving the pressing plate 3 to pressurize the cell stack 9; and the buffer member 4 is suitable for being arranged between the pressing plate 3 and the cell stack 9, and the buffer member 4 has elasticity so as to reduce the impact action when the pressing plate 3 applies load to the cell stack 9.
Specifically, the press 1 may be connected to a control system, and the control system controls the application of a corresponding load, for example, when the load of the cell stack 9 changes, the press 1 may achieve a supplementary load speed of 0.1MPa/s, the press head 2 of the press 1 may move in the direction of applying the load, and the press 1 may pressurize through the press plate 3 connected to the end of the press head 2, so that the load may be more uniform. For example, the buffer 4 may be a coil spring or other elastic member, and the buffer 4 may deform when receiving an external force, thereby playing a role of buffering and reducing the impact on the cell stack 9.
The cell stack pressurizing device provided by the embodiment has the advantages that the buffer piece 4 is arranged between the pressing plate 3 and the cell stack 9 during pressurizing, and the buffer piece 4 has elasticity, so that the impact effect of the pressing plate 3 on the cell stack 9 during load application can be reduced, and the cell stack 9 is not easily damaged.
FIG. 2 is an enlarged view of the FIG. 1 cushioning member; as shown in fig. 2, the cell stack pressurizing device further comprises a first force bearing plate 5, which is adapted to be arranged on the force bearing surface of the cell stack 9, and the plate surface of the first force bearing plate 5 is parallel to the plate surface of the pressing plate 3; the buffer 4 is positioned between the first bearing plate 5 and the pressing plate 3. Preferably, the buffer 4 is a coil spring, and the number of the coil springs between the first force bearing plate 5 and the pressure plate 3 is multiple, and the multiple coil springs are arranged in an array. For example, assuming that the force-bearing area of the cell stack 9 is A, A may range from 2000cm 2 -3500cm 2 The load required to be applied per unit area is 2-3kg/cm 2 Then, the load of the cell stack 9 is F =40000-105000N, and the load of the coil spring is F = nkx, where N is the number of springs, k is the stiffness of the springs, and x is the deformation amount of the springs, and the corresponding number of coil springs may be selected as needed.
Wherein, considering that the sedimentation percentage of the cell stack 9 is 10%, the deformation amount and the height of the spiral spring during the sedimentation of the cell stack 9 are considered, and the cell stack 9 is generally sedimented by 10cm-15cm.
The sedimentation of the cell stack 9 is slow in the temperature rising roasting stage, the deformation amount of the spiral spring needs to be increased, and the deformation amount of the spiral spring is ensured to be larger than the sedimentation height of the cell stack 9, so that the cell stack 9 is favorably compressed.
Fig. 3 is an enlarged schematic view of the guide rod in fig. 1, and as shown in fig. 3, the cell stack pressurizing device further includes a guide rod 7 arranged along the pressurizing direction of the pressure plate 3, and one end of the guide rod 7 sequentially penetrates through the pressure plate 3 and the plate surface of the first force bearing plate 5 and is fixed to the surface of the worktable 8, so that the pressure plate 3 and the first force bearing plate 5 are kept parallel in the pressurizing process. Preferably, the guide rods 7 comprise four, and are respectively arranged at four top corners of the pressure plate 3. For example, each guide rod 7 may be provided with a threaded section, and the first force bearing plate 5 and the pressure plate 3 are fastened through bolts 10.
The cell stack pressurizing device also comprises a second force bearing plate 6 which is arranged on the surface of the workbench 8, the second force bearing plate 6 and the second force bearing plate 6 are both arranged along the horizontal direction and are suitable for placing a cell stack 9, and when pressurizing is carried out, the cell stack 9 is positioned between the first force bearing plate 5 and the second force bearing plate 6. For example. The first bearing plate 5 and the second bearing plate 6 can be steel plates, and the first bearing plate 5 and the second bearing plate 6 enable the load on the cell stack 9 to be more uniform, so that stress concentration is prevented.
Wherein the table 8 can be used to stack the cell stack 9.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (6)
1. A stack pressurizing device, characterized by comprising at least:
the pressing machine is provided with a pressing head and a pressing plate which are connected, and the pressing head is suitable for driving the pressing plate to pressurize the cell stack;
and the buffer part is suitable for being arranged between the pressing plate and the cell stack, and the buffer part has elasticity so as to reduce the impact action when the pressing plate applies load to the cell stack.
2. The stack pressurizing apparatus according to claim 1,
the first bearing plate is suitable for being arranged on the bearing surface of the cell stack, and the plate surface of the first bearing plate is parallel to the plate surface of the pressing plate;
the buffer piece is positioned between the first bearing plate and the pressing plate.
3. The stack pressurizing apparatus according to claim 2,
the bolster is coil spring, first force bearing plate with coil spring between the clamp plate has a plurality ofly, and is a plurality of coil spring is the array setting.
4. The stack pressurizing device according to claim 2,
the pressing plate is arranged on the first bearing plate, the first bearing plate is arranged on the pressing plate, the second bearing plate is arranged on the second bearing plate, and the pressing plate is arranged on the first bearing plate.
5. The stack pressurizing device according to claim 4,
the guide rods comprise four guide rods which are respectively arranged at four vertex angles of the pressing plate.
6. The stack pressurizing device according to claim 2,
the second bearing plate is arranged on the surface of the workbench and is suitable for placing the cell stack, and the cell stack is positioned between the first bearing plate and the second bearing plate during pressurization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211464882.8A CN115763930A (en) | 2022-11-22 | 2022-11-22 | Cell stack pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211464882.8A CN115763930A (en) | 2022-11-22 | 2022-11-22 | Cell stack pressure device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115763930A true CN115763930A (en) | 2023-03-07 |
Family
ID=85334707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211464882.8A Pending CN115763930A (en) | 2022-11-22 | 2022-11-22 | Cell stack pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115763930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117457957A (en) * | 2023-12-21 | 2024-01-26 | 河南工学院 | Cell pile fastening device of electrocatalytic fuel cell |
-
2022
- 2022-11-22 CN CN202211464882.8A patent/CN115763930A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117457957A (en) * | 2023-12-21 | 2024-01-26 | 河南工学院 | Cell pile fastening device of electrocatalytic fuel cell |
| CN117457957B (en) * | 2023-12-21 | 2024-03-05 | 河南工学院 | Cell pile fastening device of electrocatalytic fuel cell |
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