CN212085147U - High reliability solid oxide fuel cell - Google Patents
High reliability solid oxide fuel cell Download PDFInfo
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- CN212085147U CN212085147U CN202020534404.XU CN202020534404U CN212085147U CN 212085147 U CN212085147 U CN 212085147U CN 202020534404 U CN202020534404 U CN 202020534404U CN 212085147 U CN212085147 U CN 212085147U
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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
- Y02E60/50—Fuel cells
Abstract
The utility model discloses a high-reliability solid oxide fuel cell, which comprises an outer shell, an inner shell, a plurality of cell tubes and a top cover with a gas inlet, wherein the bottom of the outer shell is provided with a plurality of cathode exhaust ports, and the top cover is arranged at the top of the outer shell; the top of the inner shell, which is close to the battery tube fixing disc, is provided with a cathode inner shell exhaust port, the lower part of the inner shell is provided with a cathode inner shell air inlet, and the cathode inner shell air inlet is positioned below the battery tube; the battery comprises a battery tube, a vent pipe, a plurality of foam nickel blocks and a protective layer, wherein the outer surface of the vent pipe is printed with at least one anode conductive bar, each anode conductive bar is welded with a plurality of foam nickel blocks at intervals, the exposed area of the anode conductive bar at the periphery of each foam nickel block is covered with the protective layer, and the vent pipe is embedded into the battery tube and is in interference fit contact with the battery tube through the foam nickel blocks on the outer surface of the. The utility model discloses be favorable to improving reaction contact time, the generating efficiency is high, and has avoided the inside short circuit of battery, has improved the reliability of battery.
Description
Technical Field
The utility model relates to a fuel cell field especially relates to a high reliability solid oxide fuel cell.
Background
Solid Oxide Fuel Cells (SOFC) belong to the third generation of Fuel cells, and are all-Solid-state chemical power generation devices that directly convert chemical energy stored in Fuel and oxidant into electrical energy at medium and high temperatures with high efficiency and environmental friendliness.
SOFCs have high power density with greater energy output at the same volume/weight; the SOFC has no noise and pollution, only generates chemical reaction when in work, has no mechanical movement structure, and has water as main emission; the modularized cell pack can be modularized, and a plurality of single cells can be assembled into the cell pack in series, parallel and the like to adapt to application requirements of different scenes; the available fuels are various and easy to obtain, and hydrogen, hydrocarbon, methanol and the like can be directly used as fuels without using noble metals as catalysts; all solid-state structure, no pollutant leakage risk.
On the other hand, current collection plays a very important role in aspects such as SOFC efficiency, and the prior art has the following solutions,
the patent of application No. 2013100472563 adopts a method of filling nickel blanket between the air inlet pipe and the anode supporting pipe to carry out anode current collection, and because the coverage area is large, the method greatly reduces the effective reaction area of the anode, so that the specific energy density of the battery is greatly reduced;
the patent of application No. 2005101014873 uses a cone-shaped battery tube, in which the cathode at the outer edge of the small open end of the battery tube is sealed with the anode at the inner edge of the large open end of another monomer by connecting and encapsulating materials, the conductivity of the battery cathode material is relatively poor, the high-temperature airtight difficulty of the connection port of the battery cathode and the anode is high, and the internal short circuit phenomenon of the battery is easily caused due to poor sealing;
the patent of application No. 2017107674600 discloses a method for anode current collection by grooving the cell tube, which destroys the cell tube surface structure, reduces the mechanical properties of the cell tube, and the hardness of the ceramic material is high, and grooving is difficult. How to overcome the above technical problems is the direction of efforts of those skilled in the art.
Disclosure of Invention
The utility model aims at providing a high reliability solid oxide fuel cell, each air current alternate segregation of this high reliability solid oxide fuel cell, no air current is alternately, high temperature work position seal structure quantity has both been reduced, the gas leakage risk has been reduced, and positive pole/negative pole adopts business turn over air current reverse flow, existing being favorable to improving reaction contact time, the generating efficiency is high, progressively preheat reaction gas before the reaction, cold and hot impact has been avoided, make the thermal efficiency and the life of battery high, and enable the specific energy density of battery high, the inside short circuit of battery has also been avoided, the reliability of battery has been improved.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a high-reliability solid oxide fuel cell comprises an outer shell, an inner shell, a plurality of cell tubes and a top cover with a fuel gas inlet, wherein a plurality of cathode exhaust ports are formed in the bottom of the outer shell;
an anode exhaust cavity is formed between the battery tube fixing disc and the vent pipe fixing disc, the opening end of the battery tube is positioned in the anode exhaust cavity, and an anode exhaust port is formed in the side surface of the outer shell;
the top of the inner shell, which is close to the battery tube fixing disc, is provided with a cathode inner shell exhaust port, the lower part of the inner shell is provided with a cathode inner shell air inlet, and the cathode inner shell air inlet is positioned below the battery tube;
the cathode air inlet pipes are positioned in an outer cavity formed by the outer shell, the inner shell and the battery tube fixing disc, the lower ends of the cathode air inlet pipes are connected with a cathode inner shell air inlet positioned at the lower part of the inner shell, the upper ends of the cathode air inlet pipes are connected with a cathode air inlet of the outer shell, the height of the cathode air inlet of the outer shell is higher than that of the cathode inner shell air inlet of the inner shell, and the ignition tube sequentially penetrates through the outer shell, the inner shell and the inner cavity to be;
the battery comprises a battery tube, a vent pipe, a plurality of foam nickel blocks and a protective layer, wherein the outer surface of the vent pipe is printed with at least one anode conductive bar, each anode conductive bar is welded with a plurality of foam nickel blocks at intervals, the exposed area of the anode conductive bar at the periphery of each foam nickel block is covered with the protective layer, and the vent pipe is embedded into the battery tube and is in interference fit contact with the battery tube through the foam nickel blocks on the outer surface of the.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, the plurality of cathode air inlet pipes are arranged at equal intervals along the circumferential direction of the inner shell.
2. In the above scheme, the exhaust port of the cathode inner shell is a notch groove positioned on the top surface of the inner shell.
3. In the scheme, the number of the anode conducting strips of the vent pipe is 4, and the anode conducting strips are distributed at equal intervals along the circumferential direction of the vent pipe.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:
1. the utility model discloses high reliability solid oxide fuel cell, its battery pipe one end is sealed end, and the other end is the open end, a plurality of the battery pipe imbeds a battery pipe fixed disk respectively, and it is intraductal that a plurality of both ends open-ended breather pipe one end imbeds the battery respectively, the structure that has adopted single-end closed battery pipe to add the breather pipe and the mode that single-end advances to give vent to anger, high temperature work position seal structure quantity has both been reduced, the risk of leaking gas has been reduced, and gaseous reverse flow of positive pole business turn over, existing improvement reaction contact time that does benefit to, the generating efficiency is high, progressively preheat the gas in the breather pipe before the reaction, cold and hot shock has been avoided, make the thermal efficiency and the.
2. The utility model discloses high reliability solid oxide fuel cell, its printing of breather pipe surface has an at least positive pole busbar, and the welding has a plurality of foam nickel piece on every positive pole busbar at interval, and this positive pole busbar is located the peripheral exposed region cover of foam nickel piece and has a protective layer, breather pipe embedding battery is intraductal and through the foam nickel piece that is located its surface and battery pipe interference fit contact, and the collection electricity need not to destroy the breather pipe, does not influence gas tightness and mechanical properties, and the collection point is little with battery area of contact, need not to carry out machine tooling to the breather pipe for the specific energy density of battery is high, has also avoided the inside short circuit of battery, has improved the reliability of battery.
3. The utility model discloses high reliability solid oxide fuel cell, its a plurality of the sealed end of battery pipe is located the inner casing, the top that the inner casing is close to the battery pipe fixed disk is opened there is the negative pole inner shell gas vent, the interior casing lower part is opened there is a negative pole inner shell air inlet, and the negative pole inner shell air inlet is located the battery pipe below, and the negative pole adopts the business turn over air current to reverse, has not only helped improving reaction contact time, and the generating efficiency is high, has increased generating efficiency; in addition, its a plurality of negative pole intake pipe is located the exocoel that comprises shell body, interior casing and battery pipe fixed disk, the upper end of negative pole intake pipe is connected with the negative pole air inlet of shell body, the top that interior casing is close to the battery pipe fixed disk is opened there is negative pole inner shell gas vent, the height that highly is higher than the negative pole inner shell air inlet of interior casing of negative pole air inlet of shell body, open the bottom of shell body has a plurality of negative pole gas vent, and the interior airflow direction of negative pole intake pipe overlaps with the air current direction in the exocoel that has the heat, is favorable to coming from progressively preheating before the reaction of negative pole admission gas, recycles the heat in the negative pole tail gas effectively, has avoided forming the influence of too big temperature difference to.
Drawings
FIG. 1 is a schematic structural diagram of a high-reliability solid oxide fuel cell of the present invention;
FIG. 2 is a schematic diagram of an exploded structure of a high-reliability solid oxide fuel cell according to the present invention;
FIG. 3 is a schematic diagram of the exploded structure of the high reliability solid oxide fuel cell of the present invention;
FIG. 4 is a schematic cross-sectional view of a highly reliable solid oxide fuel cell according to the present invention;
FIG. 5 is a schematic diagram showing a partial structural decomposition of a solid oxide fuel cell according to the present invention;
fig. 6 is a schematic diagram showing a partial structural decomposition of the solid oxide fuel cell of the present invention.
In the above drawings: 1. an outer housing; 101. a cathode exhaust port; 102. a cathode gas inlet; 2. an inner housing; 3. a battery tube; 31. sealing the end; 32. an open end; 4. a top cover; 41. a gas inlet; 5. a battery tube fixing disc; 51. a first through hole; 6. an inner cavity; 7. a breather pipe; 71. an opening; 8. a breather pipe fixing disc; 81. a second through hole; 9. an anode exhaust cavity; 11. an anode exhaust port; 121. a cathode inner shell exhaust port; 122. a cathode inner shell gas inlet; 13. a cathode gas inlet pipe; 14. an outer cavity; 15. an igniter tube; 17. an anode conductive strip; 18. a foamed nickel block; 19. and a protective layer.
Detailed Description
In the description of this patent, it is noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 meaning of the above terms in this patent may be specifically understood by those of ordinary skill in the art.
Example 1: a high-reliability solid oxide fuel cell comprises an outer shell 1, an inner shell 2, a plurality of cell tubes 3 and a top cover 4 with a fuel gas inlet 41, wherein a plurality of cathode exhaust ports 101 are formed in the bottom of the outer shell 1, the top cover 4 is installed on the top of the outer shell 1, one end of each cell tube 3 is a sealed end 31, the other end of each cell tube 3 is an open end 32, the plurality of cell tubes 3 are respectively embedded into first through holes 51 corresponding to cell tube fixing disks 5, an inner cavity 6 is formed between the inner shell 2 and a cell tube fixing disk 5 positioned on the top of the inner shell 2, the sealed ends 31 of the plurality of cell tubes 3 are positioned in the inner shell 2, one ends of vent tubes 7 with openings 71 at two ends are respectively embedded into the cell tubes 3, and the other ends of the vent tubes 7 are respectively embedded into second through holes 82 corresponding to vent tube fixing;
an anode exhaust cavity 9 is formed between the battery tube fixing disc 5 and the vent pipe fixing disc 8, the opening end 32 of the battery tube 3 is positioned in the anode exhaust cavity 9, and an anode exhaust port 11 is formed in the side surface of the outer shell 1;
the top of the inner shell 2, which is close to the battery tube fixing disc 5, is provided with a cathode inner shell air outlet 121, the lower part of the inner shell 2 is provided with a cathode inner shell air inlet 122, and the cathode inner shell air inlet 122 is positioned below the battery tube 3;
a plurality of cathode air inlet pipes 13 are positioned in an outer cavity 14 formed by the outer shell 1, the inner shell 2 and the battery tube fixing disc 5, the lower ends of the cathode air inlet pipes 13 are connected with cathode inner shell air inlets 122 positioned at the lower part of the inner shell 2, the upper ends of the cathode air inlet pipes 13 are connected with cathode air inlets 102 of the outer shell 1, and the height of the cathode air inlets 102 of the outer shell 1 is higher than that of the cathode inner shell air inlets 122 of the inner shell 2; an ignition tube 15 penetrates through the outer shell 1 and the inner shell 2 in sequence and is communicated with the inner cavity 6;
at least one anode conductive strip 17 is printed on the outer surface of the vent pipe 7, a plurality of nickel foam blocks 18 are welded on each anode conductive strip 17 at intervals, a protective layer 19 covers the exposed area of the anode conductive strip 17 at the periphery of the nickel foam block 18, and the vent pipe 7 is embedded in the battery tube 3 and is in interference fit contact with the battery tube 3 through the nickel foam blocks 18 on the outer surface of the vent pipe.
The cathode inner casing exhaust port 121 is a notch groove located on the top surface of the inner casing 2.
The plurality of cathode inlet pipes 13 are arranged at equal intervals in the circumferential direction of the inner housing 2.
The protective layer is glass.
Example 2: a high-reliability solid oxide fuel cell comprises an outer shell 1, an inner shell 2, a plurality of cell tubes 3 and a top cover 4 with a fuel gas inlet 41, wherein a plurality of cathode exhaust ports 101 are formed in the bottom of the outer shell 1, the top cover 4 is installed on the top of the outer shell 1, one end of each cell tube 3 is a sealed end 31, the other end of each cell tube 3 is an open end 32, the plurality of cell tubes 3 are respectively embedded into first through holes 51 corresponding to cell tube fixing disks 5, an inner cavity 6 is formed between the inner shell 2 and a cell tube fixing disk 5 positioned on the top of the inner shell 2, the sealed ends 31 of the plurality of cell tubes 3 are positioned in the inner shell 2, one ends of vent tubes 7 with openings 71 at two ends are respectively embedded into the cell tubes 3, and the other ends of the vent tubes 7 are respectively embedded into second through holes 82 corresponding to vent tube fixing;
an anode exhaust cavity 9 is formed between the battery tube fixing disc 5 and the vent pipe fixing disc 8, the opening end 32 of the battery tube 3 is positioned in the anode exhaust cavity 9, and an anode exhaust port 11 is formed in the side surface of the outer shell 1;
the top of the inner shell 2, which is close to the battery tube fixing disc 5, is provided with a cathode inner shell air outlet 121, the lower part of the inner shell 2 is provided with a cathode inner shell air inlet 122, and the cathode inner shell air inlet 122 is positioned below the battery tube 3;
a plurality of cathode air inlet pipes 13 are positioned in an outer cavity 14 formed by the outer shell 1, the inner shell 2 and the battery tube fixing disc 5, the lower ends of the cathode air inlet pipes 13 are connected with cathode inner shell air inlets 122 positioned at the lower part of the inner shell 2, the upper ends of the cathode air inlet pipes 13 are connected with cathode air inlets 102 of the outer shell 1, and the height of the cathode air inlets 102 of the outer shell 1 is higher than that of the cathode inner shell air inlets 122 of the inner shell 2; an ignition tube 15 penetrates through the outer shell 1 and the inner shell 2 in sequence and is communicated with the inner cavity 6;
at least one anode conductive strip 17 is printed on the outer surface of the vent pipe 7, a plurality of nickel foam blocks 18 are welded on each anode conductive strip 17 at intervals, a protective layer 19 covers the exposed area of the anode conductive strip 17 at the periphery of the nickel foam block 18, and the vent pipe 7 is embedded in the battery tube 3 and is in interference fit contact with the battery tube 3 through the nickel foam blocks 18 on the outer surface of the vent pipe.
The number of the anode conducting strips of the vent pipe is 4, and the anode conducting strips are distributed at equal intervals along the circumferential direction of the vent pipe.
The protective layer is made of ceramic.
When the high-reliability solid oxide fuel cell is adopted, the structure of a single-head closed cell tube and a vent pipe and the mode of single-head gas inlet and outlet are adopted, so that the number of sealing structures at high-temperature working positions is reduced, the risk of gas leakage is reduced, the gas inlet and outlet of an anode flows in reverse direction, the reaction contact time is favorably improved, the power generation efficiency is high, the gas in the vent pipe is gradually preheated before reaction, the cold and hot impact is avoided, and the thermal efficiency and the service life of the cell are high; in addition, the cathode adopts the reverse direction of the air flow, which is beneficial to improving the reaction contact time, has high power generation efficiency and increases the power generation efficiency; in addition, the vent pipe is not required to be damaged during current collection, the air tightness and the mechanical property are not influenced, the contact area of the current collection point and the battery is small, and the vent pipe is not required to be machined, so that the specific energy density of the battery is high, the internal short circuit of the battery is avoided, and the reliability of the battery is improved; in addition, the direction of the air flow in the cathode air inlet pipe is overlapped with the direction of the air flow in the outer cavity with heat, so that the cathode air inlet pipe is beneficial to gradually preheating the cathode air before reaction, the heat in the cathode tail gas is effectively recycled, and the influence of excessive temperature difference on the temperature uniformity and the service life of the battery is avoided.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. A high reliability solid oxide fuel cell, characterized by: including shell body (1), interior casing (2), a plurality of battery pipe (3) and top cap (4) that have gas entry (41), open the bottom of shell body (1) has a plurality of negative pole gas vent (101), install in the top of shell body (1) top cap (4), battery pipe (3) one end is sealed end (31), and the other end is open end (32), a plurality of battery pipe (3) imbed respectively in first through-hole (51) that a battery pipe fixed disk (5) correspond, form inner chamber (6), a plurality of between interior casing (2) and the battery pipe fixed disk (5) that are located interior casing (2) top sealed end (31) of battery pipe (3) are located interior casing (2), and breather pipe (7) one end of a plurality of both ends opening (71) imbeds respectively in battery pipe (3), a plurality of the breather pipe (7) other end imbeds second through-hole (82) that a breather pipe fixed disk (8) correspond respectively Performing the following steps;
an anode exhaust cavity (9) is formed between the battery tube fixing disc (5) and the vent pipe fixing disc (8), the open end (32) of the battery tube (3) is positioned in the anode exhaust cavity (9), and an anode exhaust port (11) is formed in the side surface of the outer shell (1);
the top of the inner shell (2), which is close to the battery tube fixing disc (5), is provided with a cathode inner shell exhaust port (121), the lower part of the inner shell (2) is provided with a cathode inner shell air inlet (122), and the cathode inner shell air inlet (122) is positioned below the battery tube (3);
the cathode air inlet pipes (13) are positioned in an outer cavity (14) formed by the outer shell (1), the inner shell (2) and the battery tube fixing disc (5), the lower ends of the cathode air inlet pipes (13) are connected with a cathode inner shell air inlet (122) positioned at the lower part of the inner shell (2), the upper ends of the cathode air inlet pipes (13) are connected with a cathode air inlet (102) of the outer shell (1), and the height of the cathode air inlet (102) of the outer shell (1) is higher than that of the cathode inner shell air inlet (122) of the inner shell (2);
an ignition tube (15) penetrates through the outer shell (1) and the inner shell (2) in sequence and is communicated with the inner cavity (6);
at least one anode conductive strip (17) is printed on the outer surface of the vent pipe (7), a plurality of foamed nickel blocks (18) are welded on each anode conductive strip (17) at intervals, a protective layer (19) covers the area, located on the periphery of each foamed nickel block (18), of each anode conductive strip (17), and the vent pipe (7) is embedded into the battery tube (3) and is in interference fit contact with the battery tube (3) through the foamed nickel blocks (18) located on the outer surface of the vent pipe.
2. The high-reliability solid oxide fuel cell according to claim 1, characterized in that: the cathode air inlet pipes (13) are arranged at equal intervals along the circumferential direction of the inner shell (2).
3. The high-reliability solid oxide fuel cell according to claim 1, characterized in that: the cathode inner shell exhaust port (121) is a notch groove positioned on the top surface of the inner shell (2).
4. The high-reliability solid oxide fuel cell according to claim 1, characterized in that: the number of the anode conducting strips (17) of the vent pipe (7) is 4, and the anode conducting strips are distributed at equal intervals along the circumferential direction of the vent pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020534404.XU CN212085147U (en) | 2020-04-13 | 2020-04-13 | High reliability solid oxide fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020534404.XU CN212085147U (en) | 2020-04-13 | 2020-04-13 | High reliability solid oxide fuel cell |
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| Publication Number | Publication Date |
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| CN212085147U true CN212085147U (en) | 2020-12-04 |
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| CN202020534404.XU Active CN212085147U (en) | 2020-04-13 | 2020-04-13 | High reliability solid oxide fuel cell |
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| CN (1) | CN212085147U (en) |
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2020
- 2020-04-13 CN CN202020534404.XU patent/CN212085147U/en active Active
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