CN103311560B - Solid oxide fuel cell power generating system and battery pile thereof - Google Patents
Solid oxide fuel cell power generating system and battery pile thereof Download PDFInfo
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- CN103311560B CN103311560B CN201210071483.5A CN201210071483A CN103311560B CN 103311560 B CN103311560 B CN 103311560B CN 201210071483 A CN201210071483 A CN 201210071483A CN 103311560 B CN103311560 B CN 103311560B
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- 239000002737 fuel gas Substances 0.000 claims abstract description 141
- 238000002485 combustion reaction Methods 0.000 claims abstract description 87
- 239000006185 dispersion Substances 0.000 claims abstract description 59
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 238000009826 distribution Methods 0.000 claims description 59
- 239000002912 waste gas Substances 0.000 claims description 56
- 238000009834 vaporization Methods 0.000 claims description 39
- 230000008016 vaporization Effects 0.000 claims description 39
- 238000002360 preparation method Methods 0.000 claims description 32
- 238000010438 heat treatment Methods 0.000 claims description 28
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- 230000003197 catalytic effect Effects 0.000 claims description 19
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
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- 239000002994 raw material Substances 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 8
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- 230000015572 biosynthetic process Effects 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 30
- 239000003345 natural gas Substances 0.000 abstract description 14
- 230000007423 decrease Effects 0.000 abstract description 2
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- 229910052739 hydrogen Inorganic materials 0.000 description 7
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- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
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- 238000010248 power generation Methods 0.000 description 2
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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
- Y02E60/50—Fuel cells
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- Fuel Cell (AREA)
Abstract
The invention discloses a kind of battery pile, comprise two-side runner board, cell substrate, air dispersion chamber and tail gas mixed combustion chamber, the upper surface of two-side runner board and lower surface are respectively arranged with air flow channel and fuel gas flow passage, cell substrate and two-side runner board alternately laminated, and between adjacent two two-side runner boards, there is a cell substrate, two-side runner board and cell substrate has the fuel gas inlet running through both, air dispersion chamber and tail gas mixed combustion chamber are formed at the both sides of two-side runner board respectively, fuel gas flow passage extends to tail gas mixed combustion chamber from fuel gas inlet, air flow channel extends to tail gas mixed combustion chamber from air dispersion chamber.This battery pile simplifies self structure, reduces natural gas intake resistance, decreases pipeline scattering losses.The invention also discloses a kind of solid oxide fuel cell power generating system with above-mentioned battery pile.
Description
Technical field
The present invention relates to battery generating system technical field, particularly relate to the battery pile of the comparatively simple solid oxide fuel cell power generating system of a kind of structure.The invention still further relates to a kind of solid oxide fuel cell power generating system with above-mentioned battery pile.
Background technology
Solid Oxide Fuel Cell is a kind of novel power generation device, and it belongs to third generation fuel cell, be a kind of under medium and high temperature the direct chemical energy be stored in fuel and oxidant is efficient, all solid state chemical generated device that is converted into environmental protection electric energy.Along with the technology of Solid Oxide Fuel Cell is constantly ripe, it is generally considered a kind of fuel cell that will be widely used and apply.
Solid Oxide Fuel Cell is primarily of anode, negative electrode and solid oxide electrolyte composition, and anode is the place that oxidation occurs fuel, and negative electrode is the place that oxidant is reduced, the catalyst of the two poles of the earth all containing accelerating electrode electrochemical reaction.Be equivalent to DC power supply, its anode and power cathode during the work of soild oxide fuel cell, negative electrode is positive source.Continue to pass into fuel gas in the anode side of Solid Oxide Fuel Cell, such as hydrogen (H
2), methane (CH
4) etc., have the anode surface adsorbed fuel gas of catalytic action, fuel gas is diffused into anode and electrolytical interface by the loose structure of anode.Continue to pass into oxygen or air in negative electrode side, there is the cathode surface adsorb oxygen of loose structure, due to the catalytic action of negative electrode itself, make oxygen atom obtain electronics and become oxonium ion, under the effect of chemical potential, oxonium ion has entered in the solid oxygen ion conductor of electrolyte effect, because concentration gradient causes diffusion, the final interface arriving solid electrolyte and anode, reacts with fuel gas, the electronics lost gets back to negative electrode by external circuit, thus forms electric current.
When utilizing above-mentioned principle to generate electricity, air is through compressor compresses, preheater preheats is entered after overcoming systemic resistance, then the negative electrode of Solid Oxide Fuel Cell is passed into, and after the compression of natural gas via overcompression machine, overcome systemic resistance and enter blender, mix with the superheated steam produced in steam generator, mixed gas enters after heater promotes temperature and passes into anode of fuel cell, electrochemical reaction is there is in cathode and anode gas in battery, finally export electric energy, product gas is steam and unspent hydrogen and off-air.
In concrete electricity generation system, Solid Oxide Fuel Cell is integrated into pile structure usually, i.e. solid-oxide fuel cell stack.In order to improve the comprehensive electric generating efficiency of solid-oxide fuel cell stack, usually the heat that the heat needing to utilize internal resistance loss in stack electricity generation process to produce and remaining fuel combustion produce is to hydrogen generating system and enter to pile air preheating system and provide institute's calorific requirement, namely fuel--the hydrogen that the battery utilizing the waste heat of solid-oxide fuel cell stack electricity generation system to become calorific value higher conversion of natural gas lower for calorific value can directly utilize, and preheating enter heap before air.
Solid-oxide fuel cell stack mainly contains flat, the large class fundamental mode of tubular type two at present, and wherein flat power density is high, and volume is little, applies comparatively extensive.Be elementary cell 100 multikilowatt natural gas high temperature solid oxide fuel cells heap hot-zone electricity generation systems, high temperature solid oxide fuel cell pile power generating technology formally coming into the market stage along with BloomEnergy company of the U.S. develops with the solid-oxide fuel cell stack of standardization, modularization, twoport type with no pressure.The twoport type with no pressure of BloomEnergy company, modular battery pile are double-pore structure, and namely have fuel gas inlet and fuel gas outlet, air enters this battery pile by unenclosed construction.BloomEnergy company develops integrated form hot-zone electricity generation system based on holes modularization solid-oxide fuel cell stack, there is the air distribution plate of the sandwich sandwich of one drag two (piece of cloth gas plate is simultaneously to upper and lower two battery pile air feed), longitudinally form a line with eight battery pile, every eight row battery pile are arranged in reformation hydrogen production pipeline more ringwise, centre is fuel gas pipeline, distribute in multilayer sleeve-shaped, outermost interlayer is telescopic air preheat layer.The fuel exhaust gas of this solid-oxide fuel cell stack enters special tail gas burner burning after needing to derive generating hot-zone with conduit again, and the waste heat that solid-oxide fuel cell stack internal circuit loss simultaneously produces also will utilize in hydrogen making by natural gas reformation, air preheat process.The external tail gas burner of the many employings of current solid-oxide fuel cell stack electricity generation system, the method of external startup burner starts stack electricity generation system and maintains it normally to be run, or adopt one to be controlled by complex control system, and by the burner starting burning, exhaust combustion unites two into one, the air preheat of entering heap then adopts various heat exchange method.
Above-mentioned solid-oxide fuel cell stack has two holes, be respectively fuel gas inlet and fuel gas outlet, namely tail gas needs to export to after hot-zone system is burnt outward and imports hot-zone heating system again, cause solid oxide fuel cell power generating system pipeline complicated, and then cause natural gas intake resistance larger, if with ordinary municipal pipeline entering natural gas, need to use booster pump supercharging, pipeline scattering losses is large.
On the other hand, also there is following problem in above-mentioned solid-oxide fuel cell stack: the first, and exhaust gas heat exchanges is close to hot-zone, and heat exchanger effectiveness is not high, and utilization rate of waste heat is lower; The second, battery pile hot zone structure is complicated, can longitudinally expand, but laterally expansion is comparatively limited and difficult; 3rd, solid-oxide fuel cell stack array is cascaded structure, in parallel after battery pile series connection, and a battery pile damages (common damage can make this heap internal break), can cause a string heap of connecting with it can not output current, reliability be not high; 4th, the longitudinal array of battery pile height in the temperature-rise period from low temperature to high temperature can change, and gas piping need stretch thereupon, and the existing pipeline between longitudinal air distribution plate adopts corrugated metal pipe to connect, and actual fabrication, installs loaded down with trivial details, and reliability is lower.
In sum, how to simplify the structure of solid oxide fuel cell power generating system, become the technical barrier that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide the battery pile of the better simply solid oxide fuel cell power generating system of a kind of structure.Another object of the present invention is to provide a kind of solid oxide fuel cell power generating system with above-mentioned battery pile.
In order to realize above-mentioned first object, the invention provides following technical scheme:
A battery pile for solid oxide fuel cell power generating system, comprising:
Two-side runner board, the upper surface of described two-side runner board and lower surface are respectively arranged with air flow channel and fuel gas flow passage;
The cell substrate alternately laminated with described two-side runner board, has a described cell substrate between adjacent two described two-side runner boards, described two-side runner board and described cell substrate has the fuel gas inlet running through both;
Be formed at air dispersion chamber and the tail gas mixed combustion chamber of described two-side runner board both sides respectively, described fuel gas flow passage extends to described tail gas mixed combustion chamber from described fuel gas inlet, and described air flow channel extends to described tail gas mixed combustion chamber from described air dispersion chamber.
Preferably, in above-mentioned battery pile, also comprise:
Be arranged at the top of described battery pile, and the first uniplanar flow guidance tape be connected with described cell substrate, the lower surface of described first uniplanar flow guidance tape has described fuel gas flow passage;
Be arranged at the bottom of described battery pile, and the second uniplanar flow guidance tape be connected with described cell substrate, the upper surface of described second uniplanar flow guidance tape has described air flow channel, and described fuel gas inlet runs through described first uniplanar flow guidance tape and described second uniplanar flow guidance tape.
Preferably, in above-mentioned battery pile, described air dispersion chamber is formed at the relative both sides of described two-side runner board respectively with described tail gas mixed combustion chamber.
In technique scheme, battery pile provided by the invention comprises two-side runner board, cell substrate, air dispersion chamber and tail gas mixed combustion chamber, the upper surface of two-side runner board and lower surface are respectively arranged with air flow channel and fuel gas flow passage, between adjacent two two-side runner boards, there is a cell substrate, two-side runner board and cell substrate has the fuel gas inlet running through both, air dispersion chamber and tail gas mixed combustion chamber are formed at the both sides of two-side runner board respectively, fuel gas flow passage extends to tail gas mixed combustion chamber from fuel gas inlet, air flow channel extends to tail gas mixed combustion chamber from air dispersion chamber.During the work of this battery pile, fuel gas enters this battery pile from fuel gas inlet, air enters this battery pile from air dispersion chamber, react on cell substrate after both flow through fuel gas flow passage and air flow channel respectively, and generation current, and react remaining fuel gas and air will mix combining combustion in tail gas mixed combustion chamber.
Known by foregoing description, compared to the battery pile introduced in background technology, battery pile provided by the invention saves fuel gas outlet, and tail gas mixed combustion chamber is set, make to react remaining air and fuel gas in the tail gas mixed combustion chamber combustion of battery pile inside, can import hot-zone heating system after not needing to derive battery pile, thus simplify self structure again, reduce natural gas intake resistance, reduce pipeline scattering losses.
In order to realize above-mentioned second object, the invention provides following technical scheme:
A kind of solid oxide fuel cell power generating system, comprise battery pile, the fuel gas preparation facilities that fuel gas is provided for described battery pile, heat-exchange device, igniter and sealed fixing device, described heat-exchange device is connected with described battery pile, described battery pile is the battery pile described in above-mentioned any one, described sealed fixing device has Waste gas outlet, and described sealed fixing device forms described air dispersion chamber and described tail gas mixed combustion chamber after being connected with described battery pile.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described fuel gas preparation facilities is positioned at described tail gas mixed combustion chamber.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described fuel gas preparation facilities comprises:
By chemical reaction, raw materials is converted into the fuel gas preparation pipe of fuel gas;
Prepare with described fuel gas the distribution device that pipe is communicated with, described fuel gas is imported in described battery pile by the fuel gas outlet on it and described fuel gas inlet by described distribution device.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described fuel gas prepares the vaporization heating electrodes pipe that pipe comprises vaporization house steward and is communicated with the described house steward that vaporizes, and described vaporization heating electrodes pipe is communicated with described distribution device.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described fuel gas preparation pipe also comprises catalytic arrays pipe, and the two ends of described catalytic arrays pipe are connected with described vaporization heating electrodes pipe and described distribution device respectively.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described vaporization house steward, described vaporization heating electrodes pipe and described catalytic arrays pipe are parallel to each other, and described vaporization house steward is communicated with described vaporization heating electrodes pipe by the first connecting cylinder, described vaporization heating electrodes pipe is communicated with described catalytic arrays pipe by the second connecting cylinder.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described vaporization heating electrodes pipe or described catalytic arrays pipe are pure nickel pipe.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described distribution device comprises gas distribution house steward.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described distribution device also comprises the air distribution plate be connected with described gas distribution house steward, described air distribution plate has the described fuel gas be communicated with described gas distribution house steward and exports.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described gas distribution house steward is square tube.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described battery pile horizontal array is after the upper surface and lower surface of described air distribution plate, described air distribution plate is along vertical direction array, to form the single battery pile array structure be arranged between conduction top board and conductive soleplate, adjacent two described gas distribution house stewards are connected by the first insulation board, adjacent two described second connecting cylinders are connected by the second insulation board, between two laterally adjacent described battery pile, there is the 3rd insulation board, between two vertically adjacent described battery pile, there is conductive plate, described conduction top board and described conductive soleplate all has wire external hole, and described conduction top board has the hot waste gas relative with described tail gas mixed combustion chamber and export.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described single battery pile array structure is arranged symmetrically with the double battery pile array structure of rear formation about the border in described tail gas mixed combustion chamber.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described conduction top board is connected by the fixed lever running through both with described conductive soleplate.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described fixed lever is the pressure rod being arranged with spring.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described heat exchanger comprises:
The coaxial sleeve be made up of outer tube and inner sleeve;
Be formed at the inside of described inner sleeve and the air flow lumen between described outer tube and described inner sleeve and exhaust-gas flow chamber respectively, described air flow lumen is communicated with described air dispersion chamber with air vent, and described exhaust-gas flow chamber exports with described hot waste gas and is communicated with described Waste gas outlet.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described inner sleeve two ends are connected with air dispersion cylinder and air trapping cylinder respectively, described outer tube two ends are connected with waste gas dispersion tube and gas sampling cylinder respectively, described air dispersion cylinder is communicated with described air vent, described air trapping cylinder is communicated with described air dispersion chamber, and described waste gas dispersion tube and described hot waste gas outlet, described gas sampling cylinder is communicated with described Waste gas outlet.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described air flow lumen is contrary with the gas flow direction in described exhaust-gas flow chamber.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described air flow lumen is communicated with by air conducting cylinder with described air dispersion chamber, and the gas outlet of described air conducting cylinder is positioned at bottom described air dispersion chamber.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described sealed fixing device has the storage tank of accommodating described air conducting cylinder.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described sealed fixing device comprises:
Top board, described conduction top board is fixedly connected with described conductive soleplate by described top board by described fixed lever.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described sealed fixing device also comprise be connected to sealing fixture by described fixed lever lower cover bottom bottom plate.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described igniter is installed on described sealing device, and it comprises igniting plate and ignition electrode, described ignition electrode has after being connected with described igniting plate for described tail gas mixed combustion chamber excites the contactless ignition of spark.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described sealed fixing device also comprises upper cover between described top board and described conduction top board, described interior on cover the waste gas streams through hole having and be communicated with described exhaust-gas flow chamber with described tail gas mixed combustion chamber, described igniting plate comprises:
Be arranged at described interior upper cover, and excite the upper igniting plate of spark on top, described tail gas mixed combustion chamber;
Be arranged at described under cover, and excite the down-firing plate of spark bottom described tail gas mixed combustion chamber;
Described ignition electrode comprises the upper ignition electrode be connected with described upper igniting plate and the down-firing pin be connected with described down-firing plate.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described interior upper cover lower surface has the waste gas runner be communicated with described waste gas streams through hole with described tail gas mixed combustion chamber, and the described contactless ignition of described upper igniting plate is positioned at described waste gas runner.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described upper igniting plate and described upper ignition electrode, and/or described down-firing plate and described down-firing pin are two groups.
Preferably, in above-mentioned solid oxide fuel cell power generating system, described waste gas runner is square runner.
Because above-mentioned battery pile has above-mentioned technique effect, the solid oxide fuel cell power generating system with this battery pile also should have corresponding technique effect.
Accompanying drawing explanation
The structural representation of the battery pile that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the upper surface of the two-side runner board that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the lower surface of the two-side runner board that Fig. 3 provides for the embodiment of the present invention;
The decomposition texture schematic diagram of the solid oxide fuel cell power generating system that Fig. 4 provides for the embodiment of the present invention;
The structural representation of the fuel gas preparation facilities that Fig. 5 embodiment of the present invention provides;
Fig. 6 is that the A of Fig. 5 is to structural representation;
Fig. 7 is the sectional structure schematic diagram of Fig. 5;
The structural representation of the double battery pile array structure that Fig. 8 provides for the embodiment of the present invention;
Fig. 9 is that the B of Fig. 8 is to structural representation;
Figure 10 is the sectional structure schematic diagram of Fig. 8;
Figure 11 is the decomposition texture schematic diagram of Fig. 8;
The structural representation of the heat-exchange device that Figure 12 provides for the embodiment of the present invention;
The sectional structure schematic diagram of the coaxial sleeve that Figure 13 provides for the embodiment of the present invention;
The structural representation of the sealed fixing device that Figure 14 provides for the embodiment of the present invention;
Figure 15 is that the C of Figure 14 is to structural representation;
Figure 16 is the sectional structure schematic diagram of Figure 14;
The structural representation of the upper cover of the sealed fixing device that Figure 17 provides for the embodiment of the present invention;
The structural representation of upper cover in the sealed fixing device that Figure 18 provides for the embodiment of the present invention;
Figure 19 be Figure 18 look up structural representation;
The structural representation of the lower cover of the sealed fixing device that Figure 20 provides for the embodiment of the present invention;
The structural representation of the down-firing plate that Figure 21 provides for the embodiment of the present invention and down-firing pin.
Wherein, in Fig. 1-2 1:
Battery pile 1, first uniplanar flow guidance tape 11, two-side runner board 12, air flow channel 121, fuel gas flow passage 122, cell substrate 13, fuel gas inlet 14, air dispersion chamber 15, tail gas mixed combustion chamber 16, second uniplanar flow guidance tape 17, junction block 21, vaporization house steward 221, vaporization heating electrodes pipe 222, catalytic arrays pipe 223, first connecting cylinder 224, second connecting cylinder 225, fuel gas outlet 231, gas distribution house steward 232, air distribution plate 233, dispersion short tube 234, conduction top board 31, conductive soleplate 32, wire external hole 33, first insulation board 34, second insulation board 35, 3rd insulation board 36, 4th insulation board 37, hot waste gas outlet 38, conductive plate 39, outer tube 61, inner sleeve 62, air vent 63, air dispersion cylinder 64, air trapping cylinder 65, waste gas dispersion tube 66, gas sampling cylinder 67, air conducting cylinder 68, upper cover 71, Waste gas outlet 711, right cover 70, bonnet 72, left cover 73, bottom plate 74, lower cover 75, protecgulum 76, spring 771, pressure rod 772, interior upper cover 78, waste gas streams through hole 781, waste gas runner 782, top board 79, down-firing plate 81, down-firing pin 82, upper igniting plate 91, upper ignition electrode 92.
Embodiment
The object of this invention is to provide the battery pile of the better simply solid oxide fuel cell power generating system of a kind of structure.Another object of the present invention is to provide a kind of solid oxide fuel cell power generating system with above-mentioned battery pile.
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is further detailed.
See Fig. 1, Fig. 2 and Fig. 3, the structural representation of the battery pile that Fig. 1 provides for the embodiment of the present invention, the structural representation of the upper surface of the two-side runner board that Fig. 2 provides for the embodiment of the present invention, the structural representation of the lower surface of the two-side runner board that Fig. 3 provides for the embodiment of the present invention.
As shown in Figure 1, Figure 2 and Figure 3, battery pile provided by the invention can utilize heap fabrication techniques squarely standardized module with no pressure to pile, and it comprises two-side runner board 12, cell substrate 13, air dispersion chamber 15 and tail gas mixed combustion chamber 16.Two-side runner board 12 is for the water conservancy diversion of air and fuel gas, and its upper surface and lower surface are respectively arranged with air flow channel 121 and fuel gas flow passage 122.Preferably, the ratio of the exit area of fuel gas flow passage 122 and the intake area of air flow channel 121 approximates the volume ratio of air and fuel gas, jet velocity when entering tail gas mixed combustion chamber 16 to make air and fuel gas is roughly equal, and improves the sealing effectiveness of fuel gas flow passage 122.Cell substrate 13 provides reaction platform for air and fuel gas, and surface relative with air flow channel 121 on it is negative electrode, and the surface relative with fuel gas flow passage 122 is anode, has a cell substrate 13 between adjacent two two-side runner boards 12.Two-side runner board 12 and cell substrate 13 has the fuel gas inlet 14 running through both, there is in air dispersion chamber 15 air through preheating, tail gas mixed combustion chamber 16 is for the remaining air of combustion reaction and fuel gas, and air dispersion chamber 15 and tail gas mixed combustion chamber 16 are formed at the adjacent both sides of two-side runner board 12 respectively.Fuel gas flow passage 122 extends to tail gas mixed combustion chamber 16 from fuel gas inlet 14, and air flow channel 121 extends to tail gas mixed combustion chamber 16 from air dispersion chamber 15.
The above-mentioned architecture advances to battery pile is based on the structure of existing solid oxide fuel cell power generating system, the structure of other devices namely in this system can remain unchanged, and during the work of this battery pile, fuel gas enters this battery pile from fuel gas inlet 14, air enters this battery pile from air dispersion chamber 15, on cell substrate, redox reaction is carried out after both flow through fuel gas flow passage 122 and air flow channel 121 respectively equably, and generation current, and react remaining fuel gas and air will mix combining combustion in tail gas mixed combustion chamber 16.
Known by foregoing description, compared to the battery pile introduced in background technology, battery pile provided by the invention saves fuel gas outlet, and tail gas mixed combustion chamber 16 is set, make to react remaining air and fuel gas in tail gas mixed combustion chamber 16 combustion of battery pile inside, can import hot-zone heating system after not needing to derive battery pile again, thus simplify self structure, reduce gas circuit, reduce natural gas intake resistance, and reduce pipeline scattering losses.Visible, this electricity generation system directly can use ordinary municipal pipeline entering natural gas, does not need supercharging, and intrasystem line seal difficulty declines; This electricity generation system is avoided arranging external tail gas burner or starting burner, whole system startup optimization only needs to regulate and control the air inflow of air and fuel gas, fixing required air-fuel ratio is kept during startup, also regulating the temperature of this electricity generation system inside by changing the two air inflow, greatly reducing the control difficulty of this system.
In further technical scheme, this battery pile also comprises the top that the first uniplanar flow guidance tape 11 and the second uniplanar flow guidance tape 17, first uniplanar flow guidance tape 11 are arranged at this battery pile, and is connected with cell substrate 13, and its lower surface has fuel gas flow passage 122; Second uniplanar flow guidance tape 17 is arranged at the bottom of this battery pile, and is also connected with cell substrate 13, and its upper surface has air flow channel 121; Above-mentioned fuel gas enters 14 and runs through the first uniplanar flow guidance tape 11 and the second uniplanar flow guidance tape 17.Because air and fuel gas need flow separately in sealed environment, therefore, first uniplanar flow guidance tape 11 and the second uniplanar flow guidance tape 17 are equivalent to upper cover plate and the lower cover of air flow channel 121 and fuel gas flow passage 122, when both settings can avoid the top of this battery and bottom only to have two-side runner board 12, form the waste of material that the air flow channel 121 of battery pile upper surface and lower surface and fuel gas flow passage 122 cannot realize guide functions and cause respectively.On the other hand, said structure significantly improves the evenness of this battery pile top and bottom, makes it can be connected more reliably with other parts.
In actual implementation process, above-mentioned air dispersion chamber 15 also can be formed at the relative both sides of two-side runner board 12 respectively with tail gas mixed combustion chamber 16, thus air flow channel 121 is set to linear pattern runner, simplify the manufacturing process of two-side runner board 12, be beneficial to the layout of other devices in electricity generation system.Meanwhile, this arrangement can ensure air and fuel gas is synchronized enters in tail gas mixed combustion chamber 16 in the same way, and the structure namely by simplifying battery pile reduces the intake resistance of this battery pile further.
See the decomposition texture schematic diagram of the solid oxide fuel cell power generating system that Fig. 4, Fig. 4 provide for the embodiment of the present invention.
As shown in Figure 4, on the basis of above-mentioned improvement, solid oxide fuel cell power generating system provided by the invention, comprises battery pile 1, fuel gas preparation facilities, heat-exchange device, igniter and sealed fixing device, and battery pile is the place that electric current produces; Fuel gas preparation facilities is then for battery pile 1 provides fuel gas; Heat-exchange device enters the air before battery pile for preheating; Sealed fixing device is used for the parts in self-contained battery heap, and provides sealed environment and insulated heat for battery pile; Igniter is used for igniting, to reach above-mentioned two gas purging requirements of reacted air and fuel gas.Above-mentioned fuel gas preparation facilities, heat-exchange device, igniter and sealed fixing device all can be device of the prior art, and the key improvements of native system is then, the battery pile 1 of battery pile 1 for providing in the various embodiments described above.On the basis of above-mentioned improvement, heat-exchange device need be connected with battery pile 1, and sealed fixing device then has Waste gas outlet 711, and sealed fixing device is connected rear formation air dispersion chamber 15 and tail gas mixed combustion chamber 16 with battery pile 1.
Because above-mentioned battery pile has above-mentioned technique effect, the solid oxide fuel cell power generating system with this battery pile also should have corresponding technique effect, no longer describes in detail herein.
In order to improve the heat utilization ratio of this electricity generation system, fuel gas preparation facilities is placed in tail gas mixed combustion chamber 16 by the specific embodiment of the invention, react remaining air and fuel gas and namely can be natural gas in fuel gas preparation facilities and water extraction for reaction condition at the heat that tail gas mixed combustion chamber 16 combustion produces, assemble at top, tail gas mixed combustion chamber 16 through the air of cooling and fuel gas gaseous mixture.This set-up mode avoids as fuel gas preparation facilities provides special heater, thus utilize the waste heat of this electricity generation system to be the higher fuel gas of calorific value by conversion of natural gas lower for calorific value, and then reduce the thermal losses of this system, improve its heat utilization ratio.In addition, fuel gas preparation facilities is built in sealed fixing device by the program, reduces the space occupancy rate of this system.
See Fig. 5, Fig. 6 and Fig. 7, the structural representation of the fuel gas preparation facilities that Fig. 5 embodiment of the present invention provides, Fig. 6 be the A of Fig. 5 to structural representation, Fig. 7 is the sectional structure schematic diagram of Fig. 5.
As shown in Fig. 5, Fig. 6 and Fig. 7, in order to adapt to the battery pile with said structure better, the embodiment of the present invention also makes improvements the structure of fuel gas preparation facilities, particularly, this fuel gas preparation facilities comprises junction block 21, the fuel gas that is connected with junction block 21 prepares and manage and prepare with fuel gas the distribution device that pipe is communicated with.The mixture of natural gas and water enters fuel gas from junction block 21 and prepares in pipe, fuel gas prepares in pipe the condition such as temperature, humidity having and prepare needed for fuel gas, raw materials is converted into fuel gas by chemical reaction therein, this fuel gas is prepared pipe and be can be an independent reaction tube, and this fuel gas is generally hydrogen; Distribution device imports in battery pile 1 for the fuel gas prepared in pipe being prepared by fuel gas by the fuel gas outlet 231 on it and fuel gas inlet 14, and it can be an independent gas distribution house steward 232.
In specific embodiments, above-mentioned fuel gas preparation pipe also can be the combination of multiple reaction tube, and it comprises vaporization house steward 221 and vaporization heating electrodes pipe 222.Vaporization house steward 221 and natural gas, water equipment connection is provided, it is for fully mixing above-mentioned raw materials; Vaporization heating electrodes pipe 222 is communicated with vaporization house steward 221, its reaction environment for providing temperature suitable for abundant mixed raw materials, ensure that raw materials can favourable conversions be fuel gas, and the fuel gas prepared is imported in battery pile after being communicated with distribution device by vaporization heating electrodes pipe 222.Vaporization house steward 221 and vaporization heating electrodes pipe 222, by staged for the preparation process of fuel gas, make this process more efficient, improve the production rate of fuel gas.
In order to accelerate the preparation speed of fuel gas, and improve the production rate of fuel gas further, the fuel gas preparation facilities that the specific embodiment of the invention provides also comprises catalytic arrays pipe 223.Obviously, the preparation that catalytic arrays pipe 223 can be fuel gas provides catalyst, and its two ends are connected with vaporization house steward 221 and distribution device respectively.This solution avoids and add catalyst in vaporization heating electrodes pipe 222, thus reduce further the intake resistance of this solid oxide fuel cell power generating system.The axis of above-mentioned vaporization house steward 221, vaporize heating electrodes pipe 222 and catalytic arrays pipe 223 can be located along the same line.
It is conceivable that, in order to optimize the preparation process of fuel gas, the length of above-mentioned each reaction tube suitably can be lengthened, and be limited to the space requirement of this electricity generation system, then vaporization house steward 221, vaporization heating electrodes pipe 222 and catalytic arrays pipe 223 are be arranged in parallel, and vaporization house steward 221 is communicated with vaporization heating electrodes pipe 222 by the first connecting cylinder 224, vaporization heating electrodes pipe 222 is communicated with catalytic arrays pipe 223 by the second connecting cylinder 225.First connecting cylinder 224 and the second connecting cylinder 225, as the connecting media between above-mentioned reaction tube, expand the reaction compartment of raw materials in the length of guarantee fuel gas preparation facilities under can being in the prerequisite in OK range.
According to different power generation requirements, the manufactured materials of above-mentioned vaporization heating electrodes pipe 222 and catalytic arrays pipe 223 can be different, and generally adopt refractory metal material, the embodiment of the present invention then adopts pure nickel pipe, and its caliber ratio is preferably greater than or equal to 30.Pure nickel pipe has good plasticity, corrosion resistance, strong basicity resisting, can high polish, it is emphasized that pure nickel pipe itself can be used as catalyst, in the preparation process of fuel gas, saves catalyst, thus reduces the fuel gas preparation cost of this electricity generation system.
In order to more easily the fuel gas prepared be imported in battery pile 1, above-mentioned distribution device is except comprising gas distribution house steward 232, also comprise the air distribution plate 233 be connected with gas distribution house steward 232, air distribution plate 233 adopts entity open-celled structure, it has the fuel gas be communicated with gas distribution house steward 232 and export 231, particularly, gas distribution house steward 232 exports 231 by multiple dispersion short tube 234 and fuel gas and is communicated with.Relative to employing gas distribution house steward 232, fuel gas is imported in battery pile 1, the problem of the working strength reduction of the gas distribution house steward 232 that air distribution plate 233 can avoid perforate on gas distribution house steward 232 to bring, and air distribution plate 233 can simultaneously for battery pile 1 provides certain support force.Further, gas distribution house steward 232 can be set to square tube, to adapt to the design feature of air distribution plate 233, and increase the fuel gas flowing space therein to large extent, promote the boot speed of fuel gas.
See the structural representation of the double battery pile array structure that Fig. 8-11, Fig. 8 provides for the embodiment of the present invention, Fig. 9 be the B of Fig. 8 to structural representation, Figure 10 is the sectional structure schematic diagram of Fig. 8, and Figure 11 is the decomposition texture schematic diagram of Fig. 8.
As illustrated in figs. 8-11, in order to expand the generating capacity of this electricity generation system, battery pile 1 is improved to array structure by the specific embodiment of the invention, is reached the increase of energy output by the series and parallel connections of multiple battery pile 1, and the structure after array is by conduction top board 31 and conductive soleplate 32 derived current.Concrete array structure is: battery pile 1 horizontal array is after the upper surface and lower surface of air distribution plate 233, air distribution plate 233 is along vertical direction array, to form the single battery pile array structure between conduction top board 31 and conductive soleplate 32, adjacent two gas distribution house stewards 232 are connected by the first insulation board 34, two adjacent the first connecting cylinders 224 are connected by the second insulation board 35, two adjacent the second connecting cylinders 225 are connected by the 3rd insulation board 36, between two laterally adjacent battery pile 1, there is the 4th insulation board 37, between two vertically adjacent battery pile 1, there is conductive plate 39, conduction top board 31 and conductive soleplate 32 all has wire external hole, and conduction top board 31 has the hot waste gas relative with tail gas mixed combustion chamber 16 and exports 38, the gas that tail gas mixed combustion chamber 16 combustion produces carries certain heat and flows out hot waste gas outlet 38.
In above-mentioned single battery pile array structure, the first insulation board 34, second insulation board 35 and the 3rd insulation board 36 for support cells heap 1, and provide sealing for battery pile 1; 4th insulation board 37 and conductive plate 39 acting in conjunction, make this single battery pile array structure by battery pile 1 laterally in parallel, lontitudinal series, so just can ensure that the damage of single battery pile 1 can not affect the external transmission of electricity function of whole electricity generation system, namely increase substantially the reliability of this system.In addition, without hard link between above-mentioned each air distribution plate 233, when height and position changes battery pile 1 array at different temperatures, the height of air distribution plate 233 can not pind down thereupon changing, and further increases the reliability of this electricity generation system.Above-mentioned each insulation board can be the insulation board of general material, and in the embodiment of the present invention, each insulation board is preferably heat resistance insulating sheet, and then extends the working life of above-mentioned insulation board in hot environment.
On the basis of technique scheme, above-mentioned single battery pile array structure is arranged symmetrically with the double battery pile array structure of rear formation about the border in tail gas mixed combustion chamber 16 by the specific embodiment of the invention, and namely tail gas mixed combustion chamber 16 is between the battery pile 1 of two single battery pile array structures.By single battery, the amount of parts of piling in array structure adds one times to this technical scheme, make the internal structure of this solid oxide fuel cell power generating system more compact, battery pile is all expanded in horizontal and vertical both direction, for whole system layout advantageously.Further, the gross power of the battery pile in this array structure can regulate according to actual needs, is of value to the Expansion of the battery pile in this electricity generation system.
In order to strengthen this electricity generation system inner components between connective stability, fixed lever can be adopted to run through conduction top board 31 and conductive soleplate 32, the connection of both realizations, and the lower end of this fixed lever is fixed by plain nut.Preferably, fixed lever can be the pressure rod 772 being arranged with spring 771, and spring 771 is arranged between nut and conductive soleplate 32, more preferably, spring washer can be set at spring 771 two ends, to ensure that it is connected with the reliable of nut, and reduce the pressure of conductive soleplate 32 lower surface.Well imagine, according to the bonding strength requirement of electricity generation system, turn nut thus change it and put on power on spring 771, this active force is passed on conductive soleplate 32 and conduction top board 31 by spring 771 successively, thus realizes the adjustment of the bonding strength between conduction top board 31 and conductive soleplate 32.More preferably, above-mentioned nut can be set to two, is respectively hold-down nut and stop nut, realizes conducting electricity the location of top board 31 and conductive soleplate 32 after hold-down nut is connected with fixed lever, and stop nut then realizes the locking of fixed lever and hold-down nut.
See the structural representation of the heat-exchange device that Figure 12 and Figure 13, Figure 12 provide for the embodiment of the present invention, the sectional structure schematic diagram of the coaxial sleeve that Figure 13 provides for the embodiment of the present invention.
As shown in Figures 12 and 13, the heat exchanger that the specific embodiment of the invention provides comprises outer tube 61 and inner sleeve 62, outer tube 61 and inner sleeve 62 form coaxial sleeve, the inside of inner sleeve 62 and form air flow lumen and exhaust-gas flow chamber between outer tube 61 and inner sleeve 62 respectively, air flow lumen is communicated with air dispersion chamber 15 with air vent 63, and exhaust-gas flow chamber and hot waste gas export 38 and be communicated with Waste gas outlet 711.This heat-exchange device adopts general heat exchange principle, the heat produced in tail gas mixed combustion chamber 16 is intended to pass to the air entering this system, complete preheating of air, therefore, above-mentioned outer tube 61 and inner sleeve 62 can adopt rectangular tube, are convenient to the connection that both and air vent 63, air dispersion chamber 15, hot waste gas export 38 and Waste gas outlet 711.
The concrete forming part in above-mentioned air flow lumen and exhaust-gas flow chamber can be selected flexibly, namely outer tube 61 and inner sleeve 62 and air vent 63, air dispersion chamber 15, hot waste gas go out 38 and the annexation of Waste gas outlet 711 without obvious restriction, but in order to improve the rate of heat exchange of heat-exchange device, be convenient to the structural configuration of this electricity generation system simultaneously, in this heat-exchange device, be also provided with air dispersion cylinder 64, air trapping cylinder 65, waste gas dispersion tube 66 and gas sampling cylinder 67.Based on this, outer tube 61 and inner sleeve 62 are all set to pipe, and the coaxial sleeve that both are formed can be set to many groups, and to increase the flow density of air and waste gas, the group number as coaxial sleeve can increase and decrease as required.Inner sleeve 62 two ends are connected with air dispersion cylinder 64 and air trapping cylinder 65 respectively, outer tube 61 two ends are connected with waste gas dispersion tube 66 and gas sampling cylinder 67 respectively, air dispersion cylinder 64 is communicated with air vent 63, air trapping cylinder 65 is communicated with air dispersion chamber 15, waste gas dispersion tube 66 and hot waste gas go out 38 and are communicated with, and gas sampling cylinder 67 is communicated with Waste gas outlet 711.
In preferred technical scheme, above-mentioned air flow lumen is contrary with the gas flow direction in exhaust-gas flow chamber, and namely air and waste gas convection current forms reverse heat exchange, strengthen the rate of heat exchange of this heat-exchange device, reduce system flow resistance, and ensure in heat exchanging process without turbulent flow, without turbulent flow, heat exchange is steady.
Air for the ease of preheating in air flow lumen is concentrated and is entered air dispersion chamber 15, and above-mentioned air flow lumen is communicated with by air conducting cylinder 68 with air dispersion chamber 15, and the gas outlet of this air conducting cylinder 68 is positioned at bottom air dispersion chamber 15.It is inner that air in air flow lumen just enters air conducting cylinder 68 after preheating, it moves downwardly to the gas outlet place of air conducting cylinder 68, the bottom in air dispersion chamber 15 can be entered, due to buoyancy, air, by slowly diffusing in whole spaces in air dispersion chamber 15, flows through air flow channel 121 with more uniform flow velocity then.
See Figure 14-21, the structural representation of the sealed fixing device that Figure 14 provides for the embodiment of the present invention, Figure 15 is that the C of Figure 14 is to structural representation, Figure 16 is the sectional structure schematic diagram of Figure 14, the structural representation of the upper cover of the sealed fixing device that Figure 17 provides for the embodiment of the present invention, the structural representation of upper cover in the sealed fixing device that Figure 18 provides for the embodiment of the present invention, Figure 19 be Figure 18 look up structural representation, the structural representation of the lower cover of the sealed fixing device that Figure 20 provides for the embodiment of the present invention, the structural representation of the down-firing plate that Figure 21 provides for the embodiment of the present invention and down-firing pin.
The sealed fixing device of the solid oxide fuel cell power generating system that the embodiment of the present invention provides comprises upper cover 71, lower cover 75, left cover 73, right cover 70, protecgulum 76 and bonnet 72, upper cover 71 is provided with Waste gas outlet 711, lower cover 75 is for providing longitudinal holding power for battery pile 1, fuel gas preparation facilities and heat-exchange device, and conduction top board 31 and conductive soleplate 32 are fixed on lower cover 75 by fixed lever and nut.Conduction top board 31 and conductive soleplate 32 are plugged in left cover 73, make to stretch in sealing fixture outside the wire external hole on both, thus ensure the output of electric current; Junction block 21 is connected with the feeding mechanism of natural gas-liquid mixture through after right cover 70, thus ensures the input of the raw materials of fuel gas.Protecgulum 76 and bonnet 72 abut with the gas distribution house steward 232 in double battery pile array structure, to form air dispersion chamber 15.Above-mentioned upper cover 71, lower cover 75, left cover 73, right cover 70, multiple locking member between protecgulum 76 and bonnet 72, can be adopted fastening, such as hasp lock.
Preferably, the right cover 70 of above-mentioned sealed fixing device has the storage tank 701 of accommodating air conducting cylinder 68, air conducting cylinder 68 embeds in this storage tank 701, make the internal structure of this electricity generation system compacter, reduce its inner space, and then reduce the space occupancy rate of this electricity generation system to a greater degree.Meanwhile, storage tank 701 can be air conducting cylinder 68 and provides support power, improves air conducting cylinder 68 and the connective stability of air flow lumen, improves the functional reliability of this electricity generation system.
In order to avoid fixed lever directly acts on conduction top board 31, the specific embodiment of the invention additionally provides top board 79, and top board 79 is arranged at the upper surface of conduction top board 31, and conduction top board 31 and conductive soleplate 32 are fixed by top board 79 by fixed lever.Obviously, the active force that fixed lever puts on conduction top board 31 will directly act on top board 79, thus avoid this active force when putting on conduction top board 31, cause to conduct electricity top board 31 and be out of shape and even damage; Because top board 79 function is comparatively single, its structure is comparatively simple, and cost is lower, can change easily, thus reduces the maintenance cost of this electricity generation system.Further, also can arrange bottom plate 74 at lower cover 75 lower surface, top board 79 is fixedly connected with bottom plate 74 with lower cover 75 through tail gas mixed combustion chamber 16 by fixed lever, thus realizes reliable location and the sealing of whole double battery pile array structure.
In above-mentioned each specific embodiment, igniter can not be fixed on sealed fixing device, stretched in tail gas mixed combustion chamber 16 by the through hole be opened on conductive soleplate 32 and lower cover 75 during its work, and excite spark, light the air in tail gas mixed combustion chamber 16 and fuel gas.In order to optimize the function of this electricity generation system, igniter is fixedly arranged on sealed fixing device by the present invention, avoids the inconvenience that frequent operation igniter is brought.Particularly, this igniter comprises igniting plate and ignition electrode, ignition electrode has after being connected with igniting plate for tail gas mixed combustion chamber 16 excites the contactless ignition of spark.In this igniter, igniting plate and ignition electrode can be fixed on lower cover 75, and it excites the position of spark to be positioned at bottom tail gas mixed combustion chamber 16, namely to ignite the gas in tail gas mixed combustion chamber 16 by contactless ignition after igniting plate and ignition electrode energising.
In view of tail gas mixed combustion chamber 16 has larger space, the burning completely that igniter is not enough to realize its internal gas is only set bottom it, therefore igniting plate is set to upper igniting plate 91 and down-firing plate 81 by the specific embodiment of the invention, ignition electrode is set to upper ignition electrode 92 and down-firing pin 82.Wherein, down-firing plate 81 and down-firing pin 82 are arranged on lower cover 75, and it excites spark position to be bottom tail gas mixed combustion chamber 16, and upper igniting plate 91 and upper ignition electrode 92 excite spark position to be bottom tail gas mixed combustion chamber 16.And in order to settle upper igniting plate 91 and upper ignition electrode 92, sealed fixing device also comprises upper cover 78 between top board 79 and conduction top board 31, interior upper cover 78 has the waste gas streams through hole 781 be communicated with exhaust-gas flow chamber with tail gas mixed combustion chamber 16.Spark is excited at the top in tail gas mixed combustion chamber 16 and bottom while like this, realize multi-faceted igniting, accelerate the air of its inside and the burning rate of fuel gas, and then reach clean-burning object, for this electricity generation system provides more heat, and burning is more steady, noise is less.In addition, tail gas mixed combustion chamber 16 extends after being connected with conduction top board 31 by interior upper cover 78, and the heat in its radiation-curable tail gas mixed combustion chamber 16, makes the temperature of whole electricity generation system more even.
It is conceivable that, above-mentioned upper igniting plate 91 and upper ignition electrode 92 are in order to realize the object of lighting a fire, need stretch in tail gas mixed combustion chamber 16 from the hot waste gas outlet 38 conduction top board 31, and hot waste gas outlet 38 is usually less, this will limit the setting position of upper igniting plate 91 and upper ignition electrode 92, in order to address this problem, above-mentioned interior upper cover 78 lower surface is provided with the waste gas runner 782 be communicated with exhaust-gas flow chamber with tail gas mixed combustion chamber 16, and the contactless ignition of upper igniting plate 91 is then positioned at waste gas runner 782.Apparently, waste gas runner 782 can extend along the length direction of interior upper cover 78, and its width also can suitably increase, and arranges scope, increase the flexibility ratio of the structural configuration of this electricity generation system with what expand upper igniting plate 91 and upper ignition electrode 92.This waste gas runner 782 can be cylindrical flow, and in order to increase its area that is communicated with tail gas mixed combustion chamber 16, the waste gas runner 782 that the embodiment of the present invention is preferably square.
Follow above-mentioned mentality of designing, in order to improve the gas combustion rate in tail gas mixed combustion chamber 16, the present invention is by above-mentioned upper igniting plate 91 and upper ignition electrode 92, or down-firing plate 81 and down-firing pin 82 are set to two groups.Particularly, on two groups, igniting plate 91 and upper ignition electrode 92 or down-firing plate 81 and down-firing pin 82 can along the horizontal expansions in tail gas mixed combustion chamber 16, also can along the longitudinal extension in tail gas mixed combustion chamber 16, with this under the prerequisite of cost controlling this electricity generation system, improve its utilization rate of waste heat.
In above-mentioned solid oxide fuel cell power generating system, each pipeline in fuel gas preparation facilities, double battery pile array structure, heat-exchange device, sealing device and igniter and structure wall body all have more suitable thermal radiation capability, this, by making the temperature rise of battery pile comparatively even, makes it not fragile.Connected mode between parts in above-mentioned each device is generally welding, to ensure bonding strength in this electricity generation system between parts, to ensure its functional reliability.
The solid oxide fuel cell power generating system provided the embodiment of the present invention above and battery pile thereof are described in detail.Apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection range of the claims in the present invention.
Claims (28)
1. a battery pile for solid oxide fuel cell power generating system, is characterized in that, comprising:
Two-side runner board (12), the upper surface of described two-side runner board (12) and lower surface are respectively arranged with air flow channel (121) and fuel gas flow passage (122);
The cell substrate (13) alternately laminated with described two-side runner board (12), between adjacent two described two-side runner boards (12), there is a described cell substrate (13), described two-side runner board (12) and described cell substrate (13) have the fuel gas inlet (14) running through both;
Be formed at air dispersion chamber (15) and the tail gas mixed combustion chamber (16) of described two-side runner board (12) both sides respectively, described fuel gas flow passage (122) extends to described tail gas mixed combustion chamber (16) from described fuel gas inlet (14), and described air flow channel (121) extends to described tail gas mixed combustion chamber (16) from described air dispersion chamber (15);
Described air dispersion chamber (15) is formed at the relative both sides of described two-side runner board (12) respectively with described tail gas mixed combustion chamber (16), and described air flow channel (12) is linear pattern runner.
2. according to battery pile according to claim 1, it is characterized in that, also comprise:
Be arranged at the top of described battery pile, and the first uniplanar flow guidance tape (11) be connected with described cell substrate (13), the lower surface of described first uniplanar flow guidance tape (11) has described fuel gas flow passage (122);
Be arranged at the bottom of described battery pile, and the second uniplanar flow guidance tape (17) be connected with described cell substrate (13), the upper surface of described second uniplanar flow guidance tape (17) has described air flow channel (121), and described fuel gas inlet (14) runs through described first uniplanar flow guidance tape (11) and described second uniplanar flow guidance tape (17).
3. a solid oxide fuel cell power generating system, comprise battery pile (1), for described battery pile (1) provides the fuel gas preparation facilities of fuel gas, heat-exchange device, igniter and sealed fixing device, described heat-exchange device is connected with described battery pile (1), it is characterized in that, described battery pile (1) battery pile according to any one of claim 1-2 (1), described sealed fixing device has Waste gas outlet (711), and described sealed fixing device forms described air dispersion chamber (15) and described tail gas mixed combustion chamber (16) after being connected with described battery pile (1).
4. according to solid oxide fuel cell power generating system according to claim 3, it is characterized in that, described fuel gas preparation facilities is positioned at described tail gas mixed combustion chamber (16).
5. according to solid oxide fuel cell power generating system according to claim 4, it is characterized in that, described fuel gas preparation facilities comprises:
By chemical reaction, raw materials is converted into the fuel gas preparation pipe of fuel gas;
Prepare with described fuel gas the distribution device that pipe is communicated with, described fuel gas is imported in described battery pile (1) by fuel gas outlet (231) on it and described fuel gas inlet (14) by described distribution device.
6. according to solid oxide fuel cell power generating system according to claim 5, it is characterized in that, described fuel gas prepares the vaporization heating electrodes pipe (222) that pipe comprises vaporization house steward (221) and is communicated with the described house steward (221) that vaporizes, and described vaporization heating electrodes pipe (222) is communicated with described distribution device.
7. according to solid oxide fuel cell power generating system according to claim 6, it is characterized in that, described fuel gas preparation pipe also comprises catalytic arrays pipe (223), and the two ends of described catalytic arrays pipe (223) are connected with described vaporization heating electrodes pipe (222) and described distribution device respectively.
8. according to solid oxide fuel cell power generating system according to claim 7, it is characterized in that, described vaporization house steward (221), described vaporization heating electrodes pipe (222) and described catalytic arrays pipe (223) are parallel to each other, and described vaporization house steward (221) is communicated with described vaporization heating electrodes pipe (222) by the first connecting cylinder (224), described vaporization heating electrodes pipe (222) is communicated with described catalytic arrays pipe (223) by the second connecting cylinder (225).
9. according to solid oxide fuel cell power generating system according to claim 8, it is characterized in that, described vaporization heating electrodes pipe (222) or described catalytic arrays pipe (223) are pure nickel pipe.
10. according to solid oxide fuel cell power generating system according to claim 8, it is characterized in that, described distribution device comprises gas distribution house steward (232).
11. according to solid oxide fuel cell power generating system according to claim 10, it is characterized in that, described distribution device also comprises the air distribution plate (233) be connected with described gas distribution house steward (232), described air distribution plate (233) has the described fuel gas be communicated with described gas distribution house steward (232) and exports (231).
12., according to solid oxide fuel cell power generating system according to claim 11, is characterized in that, described gas distribution house steward (232) is square tube.
13. according to solid oxide fuel cell power generating system according to claim 11, it is characterized in that, described battery pile (1) horizontal array is after the upper surface and lower surface of described air distribution plate (233), described air distribution plate (233) is along vertical direction array, to form the single battery pile array structure be arranged between conduction top board (31) and conductive soleplate (32), adjacent two described gas distribution house stewards (232) are connected by the first insulation board (34), adjacent two described first connecting cylinders (224) are connected by the second insulation board (35), adjacent two described second connecting cylinders (225) are connected by the 3rd insulation board (36), between two laterally adjacent described battery pile (1), there is the 4th insulation board (37), between two vertically adjacent described battery pile (1), there is conductive plate (39), described conduction top board (31) and described conductive soleplate (32) all has wire external hole, and described conduction top board (31) has the hot waste gas relative with described tail gas mixed combustion chamber (16) and export (38).
14., according to solid oxide fuel cell power generating system according to claim 13, is characterized in that, described single battery pile array structure is arranged symmetrically with the double battery pile array structure of rear formation about the border of described tail gas mixed combustion chamber (16).
15., according to solid oxide fuel cell power generating system according to claim 14, is characterized in that, described conduction top board (31) is connected by the fixed lever running through both with described conductive soleplate (32).
16., according to solid oxide fuel cell power generating system according to claim 15, is characterized in that, described fixed lever is for being arranged with the pressure rod (772) of spring (771).
17., according to solid oxide fuel cell power generating system according to claim 15, is characterized in that, described heat-exchange device comprises:
The coaxial sleeve be made up of outer tube (61) and inner sleeve (62);
Be formed at the inside of described inner sleeve (62) and the air flow lumen between described outer tube (61) and described inner sleeve (62) and exhaust-gas flow chamber respectively, described air flow lumen is communicated with described air dispersion chamber (15) with air vent (63), and described exhaust-gas flow chamber exports (38) and is communicated with described Waste gas outlet (711) with described hot waste gas.
18. according to solid oxide fuel cell power generating system according to claim 17, it is characterized in that, described inner sleeve (62) two ends are connected with air dispersion cylinder (64) and air trapping cylinder (65) respectively, described outer tube (61) two ends are connected with waste gas dispersion tube (66) and gas sampling cylinder (67) respectively, described air dispersion cylinder (64) is communicated with described air vent (63), described air trapping cylinder (65) is communicated with described air dispersion chamber (15), described waste gas dispersion tube (66) exports (38) and is communicated with described hot waste gas, described gas sampling cylinder (67) is communicated with described Waste gas outlet (711).
19., according to solid oxide fuel cell power generating system according to claim 17, is characterized in that, described air flow lumen is contrary with the gas flow direction in described exhaust-gas flow chamber.
20. according to solid oxide fuel cell power generating system according to claim 17, it is characterized in that, described air flow lumen is communicated with by air conducting cylinder (68) with described air dispersion chamber (15), and the gas outlet of described air conducting cylinder (68) is positioned at described air dispersion chamber (15) bottom.
21., according to solid oxide fuel cell power generating system according to claim 20, is characterized in that, described sealed fixing device have the storage tank (701) of accommodating described air conducting cylinder (68).
22., according to solid oxide fuel cell power generating system according to claim 17, is characterized in that, described sealed fixing device comprises:
Top board (79), described conduction top board (31) is fixedly connected with described conductive soleplate (32) by described top board (79) by described fixed lever.
23. according to solid oxide fuel cell power generating system according to claim 22, it is characterized in that, described sealed fixing device also comprises the bottom plate (74) of lower cover (75) bottom being connected to sealing fixture by described fixed lever.
24. according to solid oxide fuel cell power generating system according to claim 23, it is characterized in that, described igniter is installed on described sealing device, and it comprises igniting plate and ignition electrode, described ignition electrode has after being connected with described igniting plate for described tail gas mixed combustion chamber (16) excites the contactless ignition of spark.
25. according to solid oxide fuel cell power generating system according to claim 24, it is characterized in that, described sealed fixing device also comprises the upper cover (78) be positioned between described top board (79) and described conduction top board (31), described interior upper cover (78) has the waste gas streams through hole (781) be communicated with described exhaust-gas flow chamber with described tail gas mixed combustion chamber (16), described igniting plate comprises:
Be arranged at described interior upper cover (78), and excite the upper igniting plate (91) of spark on described tail gas mixed combustion chamber (16) top;
Be arranged on described lower cover (75), and excite the down-firing plate (81) of spark in described tail gas mixed combustion chamber (16) bottom;
Described ignition electrode comprises the upper ignition electrode (92) be connected with described upper igniting plate (91) and the down-firing pin (82) be connected with described down-firing plate (81).
26. according to solid oxide fuel cell power generating system according to claim 25, it is characterized in that, described interior upper cover (78) lower surface has the waste gas runner (782) be communicated with described waste gas streams through hole (781) with described tail gas mixed combustion chamber (16), and the described contactless ignition of described upper igniting plate (91) is positioned at described waste gas runner (782).
27. according to solid oxide fuel cell power generating system according to claim 25, it is characterized in that, described upper igniting plate (91) and described upper ignition electrode (92), or described down-firing plate (81) and described down-firing pin (82) are two groups.
28., according to solid oxide fuel cell power generating system according to claim 26, is characterized in that, described waste gas runner (782) is square runner.
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| CN105810872B (en) * | 2014-12-29 | 2018-09-04 | 吉世尔（合肥）能源科技有限公司 | A kind of tablet or flat tubular solid oxide fuel cell heap circuit connection structure |
| CN105070927B (en) * | 2015-07-29 | 2017-12-19 | 江苏氢电新能源有限公司 | A kind of self-priming bipolar plates with supporting surface |
| US20170092964A1 (en) * | 2015-09-28 | 2017-03-30 | General Electric Company | Fuel cell module including heat exchanger and method of operating such module |
| CN106898846B (en) * | 2015-12-18 | 2019-07-05 | 中国科学院大连化学物理研究所 | A kind of air flow channel integrated metal/air cell group |
| CN105789662B (en) * | 2016-04-29 | 2018-02-02 | 佛山索弗克氢能源有限公司 | Ammonia fuel cell |
| CN106602119B (en) * | 2016-12-30 | 2019-05-21 | 华中科技大学 | A kind of self-tightening type outflow chamber solid oxide fuel cell pile |
| US11824232B2 (en) | 2017-09-14 | 2023-11-21 | Bloom Energy Corporation | Internal light off mechanism for solid oxide fuel cell system startup using a spark ignitor |
| TWI686989B (en) * | 2019-02-22 | 2020-03-01 | 欽瑞工業股份有限公司 | Method and flow channel structure for making fuel cell flow distribution uniform |
| CN112117477A (en) * | 2019-06-20 | 2020-12-22 | 国家能源投资集团有限责任公司 | Assembly structure, electric pile array and battery system |
| CN112825363B (en) * | 2019-11-21 | 2022-03-29 | 中国石油天然气股份有限公司 | Battery generating device |
| CN112864416B (en) * | 2019-11-27 | 2023-08-11 | 国家能源投资集团有限责任公司 | Pile tower and pile tower module |
| CN112615022B (en) * | 2020-12-08 | 2022-02-01 | 国家能源集团宁夏煤业有限责任公司 | Gas distribution base of integrated anode of SOFC power generation module |
| CN112952144A (en) * | 2021-02-01 | 2021-06-11 | 浙江氢邦科技有限公司 | Novel solid oxide fuel cell stack hot area, hot area system and cell stack system |
| CN115036525A (en) * | 2021-03-05 | 2022-09-09 | 国家能源投资集团有限责任公司 | Fuel cell power generation module |
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