CN106602119B - A kind of self-tightening type outflow chamber solid oxide fuel cell pile - Google Patents

A kind of self-tightening type outflow chamber solid oxide fuel cell pile Download PDF

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Publication number
CN106602119B
CN106602119B CN201611256611.8A CN201611256611A CN106602119B CN 106602119 B CN106602119 B CN 106602119B CN 201611256611 A CN201611256611 A CN 201611256611A CN 106602119 B CN106602119 B CN 106602119B
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air flow
flow chamber
pile
clamp device
thermal expansion
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CN106602119A (en
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蒲健
杨佳军
李箭
池波
颜冬
黄维
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

The invention discloses a kind of self-tightening type outflow chamber solid oxide fuel cell piles, and there is upper and lower support plate, metal connector to replace the sealing material between the reactor core being stacked to, the air flow chamber with card slot, air flow chamber clamp device and each component with fuel cell.Wherein, the air flow chamber clamp device heat-resisting alloy slightly lower compared with pile air-flow cavity material using thermal expansion coefficient (CTE), card slot design can prevent air flow chamber translation gliding.As temperature increases, due to the thermal expansion coefficient difference of different materials, air flow chamber is gradually close with pile reactor core bonding state under the active force of clamp device, and the sealing state between air flow chamber and reactor core is gradually improved and reinforced.The configuration of the present invention is simple can predict the sealing state when hot operation of solid oxide fuel cell pile, to improve the reliability of outflow chamber pile sealing structure under actual working state by sealing detection at normal temperature.

Description

A kind of self-tightening type outflow chamber solid oxide fuel cell pile
Technical field
The invention belongs to new energy fields, more particularly, to a kind of self-tightening type outflow chamber solid oxide fuel cell Pile.
Background technique
The advantages of solid oxide fuel cell (SOFC) is due to its cleaning, efficient energy conversion efficiency, in recent years always It is material, energy field research hotspot.Currently, the research in relation to SOFC largely concentrates on electrode, metallic interconnection materials research and development, and want SOFC is pushed to be commercialized, it is a stage being subjected to that multiple single battery groups, which dress up high-power pile, and pile will obtain excellent Benign energy, it is envisaged that compatibility rather than the excellent performance of homogenous material between each building block.
Currently, SOFC operating temperature is concentrated mainly on middle low temperature, pile mainly uses plate armature.Plate armature root The cavity body structure for entering pile according to gas is different and can be divided into interior stream chamber and outflow chamber.Air flow chamber and pile heap in interior stream cavity configuration Core constitutes an entirety, is formed by metal connector and sealing material alternating stacking, pressure at right angle directly affects its sealing performance. Outflow chamber is made up of in conjunction with pile reactor core exterior chamber sealing material, is needed horizontal active force at this time and is realized air-flow Chamber sealing.If 201402834 Y of Chinese patent CN provides a kind of exterior air drain pile design, air flow chamber is bolted, position It keeps certain, is increased with temperature, organic matter volatilization, air flow chamber and pile reactor core have the possibility being detached from, and causes pile lateral Seal failure.Although it is contemplated that the high-temperature shrinkage of sealing material when Chinese patent CN 102723507 A is designed, but due to its heap Core is pressurizeed by bolt, and upper and lower support plate itself is in unstable position, and stable support can not be provided for air flow chamber fastening bolt, and Structure is complicated, and difficulty of processing is big, and pile is bulky, causes volumetric power density lower.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of self-tightening type outflow chamber solid oxidations Object fuel cell pile its object is to pass through setting air flow chamber clamp device, and utilizes clamp device and air flow chamber alloy material The difference for expecting thermal expansion coefficient, increases clamp device when pile hot operation constantly the fastening force of air flow chamber, air flow chamber exists Gradually close with pile reactor core bonding state under the active force of clamp device, the sealing state between air flow chamber and reactor core gradually obtains To improving and reinforcing, thus solves electric pile structure complexity, air flow chamber in the prior art and be easy to be detached from pile reactor core, elevated-temperature seal The technical issues of reliability is low equal.
To achieve the above object, according to one aspect of the present invention, a kind of self-tightening type outflow chamber soild oxide is provided Fuel cell pile, the battery stack include: upper backup pad, pile reactor core, lower supporting plate, the battery stack from top to bottom It further include the clamp device positioned at four air flow chambers of the pile reactor core surrounding and positioned at four air flow chambers periphery；
The upper backup pad and the lower supporting plate provide overall structure for battery stack and support；The bottom of the lower supporting plate Portion is machined with a circle raised platforms, for the placement datum level of the air flow chamber, prevents the air flow chamber from sliding up and down；
The pile reactor core is formed by monocell and metal connector alternating stacking；The pile reactor core is cuboid knot Structure；
Four air flow chambers are respectively two fuel gas flow chambers and two oxic gas air flow chambers；Four air-flows Chamber is connected as an entirety by sealing material with the pile reactor core, the buffering passed in and out for fuel gas and oxidizing gas；
The clamp device is used for the fastening of the air flow chamber, prevents the air flow chamber level from sliding, the clamp device The thermal expansion coefficient of the alloy material of use is less than the thermal expansion coefficient for the alloy material that the air flow chamber uses, the difference of both Absolute value not less than the clamp device use alloy material thermal expansion coefficient 20%.
Preferably, the ceramic material that the upper backup pad, lower supporting plate, metal connector and monocell use has identical Or similar thermal expansion coefficient, the absolute value of the difference of thermal expansion coefficient arbitrarily between the two are not more than lesser thermal expansion coefficient 8%.
Preferably, the alloy material that the air flow chamber uses is 310 stainless steel.
Preferably, the clamp device is the square frame being made of a pair of of compression bar and a pair of of fastening bolt, described tight Fixing bolt includes screw rod and nut, and the compression bar both ends are arranged two holes, pass through for the screw rod, then solid by the nut It is fixed.
Preferably, the thermal expansion coefficient for the alloy material that the screw rod uses is less than the alloy material that the air flow chamber uses Thermal expansion coefficient, the thermal expansion coefficient of the absolute value of the difference of the two not less than alloy material that the screw rod uses 20%.
Preferably, the screw rod uses 431,434 or 436 stainless steels.
Preferably, it is provided with pairs of card slot on the outside of the air flow chamber, for the insertion of the clamp device, the compression bar Inside is provided with the buckle protrusion mutually agreed with the card slot.
Preferably, the battery stack is provided with four sets of clamp devices from top to bottom.
Preferably, the stress distribution when position of the card slot on the outside of the air flow chamber works according to pile determines.
Preferably, it is provided with sealing material between the metal connector and the monocell, is realized by external pressure The interfacial seal of the metal connector and the monocell.
Preferably, the tightness of the fastening bolt is adjusted by digital torque force spanner, guarantees the fastening force of each bolt It is identical.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show Beneficial effect.
(1) outflow chamber solid oxide fuel cell pile of the invention utilizes air flow chamber alloy material and external fastening The difference of the alloy material thermal expansion coefficient (CTE) of device, i.e. clamp device thermal expansion coefficient are lower than the thermal expansion system of air flow chamber Number, so that, as temperature increases, clamp device constantly increases the fastening force of air flow chamber, air flow chamber in pile hot operation Gradually close with pile reactor core bonding state under the active force of clamp device, the sealing state between air flow chamber and reactor core is gradually Improved and reinforced, achievees the effect that strengthen compression sealing material, as a kind of self-tightening type outflow chamber soild oxide combustion Expect battery stack；
(2) using self-tightening type this feature of present invention outflow chamber solid oxide fuel cell pile, can by Sealing detection under room temperature predicts the sealing state when hot operation of solid oxide fuel cell pile, to improve outflow The reliability of chamber pile sealing structure under actual working state；
(3) it is provided with card slot in air flow chamber of the present invention, mutually agrees with the protrusion buckle on clamp device, prevents clamp device Level slides up and down, and ingenious in design, fastening effect is good；
(4) clamp device of the invention, guarantee air flow chamber are combined closely with pile reactor core, prevent interface between the two Seal failure, so as to cause gas leakage；
(5) present invention improves outflow chamber by the design of simple structure and designs the reliable of SOFC pile air flow chamber sealing Property, the assembly technology of pile is further simplified, the volume of pile is reduced.
Detailed description of the invention
Fig. 1 is the inside and outside overall structure figure before the battery stack fastening of the embodiment of the present invention 1；
Fig. 2 is the cellular construction figure of pile reactor core of the invention；
Fig. 3 is pile clamp device schematic diagram of the invention；
Fig. 4 is the pile appearance diagram after the fastening of the embodiment of the present invention 1.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which:
1- upper backup pad；2- pile reactor core；3- oxic gas air flow chamber；The sealing of 4- air flow chamber；5- lower supporting plate；6- fuel gas Air flow chamber；7- metal connector；The sealing of 8- cathode；9- monocell；10- anode seal；11- compression bar；12- screw rod；13- nut.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below Not constituting a conflict with each other can be combined with each other.
Self-tightening type provided by the invention outflow chamber solid oxide fuel cell pile include: from top to bottom upper backup pad, Pile reactor core, lower supporting plate further include four air flow chambers of pile reactor core surrounding and the clamp device of four air flow chamber peripheries.
Pile reactor core is formed by monocell and metal connector alternating stacking；There is glass between monocell and metal connector Ceramic material realizes the interfacial seal of metal connector and monocell, metal connector by external pressure as sealing material There are airflow channels between monocell, realize fuel gas airflow channel and oxic gas by cathode sealing and anode seal respectively The sealing and isolation of airflow channel, and fuel gas is to intersect flow direction with oxic gas.
Upper backup pad and lower supporting plate have certain thickness and intensity, have gas conduit, connect monocell or metal connects Junctor provides overall structure support for pile.The bottom of lower supporting plate is machined with a circle raised platforms, the placement for air flow chamber Datum level prevents air flow chamber from sliding up and down.
There are four air flow chamber is total, two fuel gas flow chambers and two oxic gas air flow chambers；Two fuel gas flows Chamber is respectively a fuel gas inlet air flow chamber and a fuel gas goes out air flow chamber, and two oxic gas air flow chambers are respectively an oxidation Gas inlet air flow chamber and an oxic gas go out air flow chamber；Pile reactor core is rectangular parallelepiped structure, and four air flow chambers are respectively arranged at pile On four sides of reactor core cuboid, the air flow chamber is connected as an entirety by sealing material with the pile reactor core, uses In the buffering that fuel gas and oxidizing gas pass in and out.Reserved area punching is in air flow chamber to connect external steam line.
Clamp device is fixed on battery stack periphery/periphery, is opposite two-by-two by a pair of of compression bar and a pair of of fastening bolt The square frame of composition, fastening bolt include screw rod and nut, and the compression bar both ends are arranged two holes, pass through for screw rod, so It is fixed afterwards by nut.Bolt fastening degree is adjusted by digital torque force spanner, guarantees that the fastening force of each bolt is identical.
On the outside of each air flow chamber, i.e., the side close with clamp device is provided with pairs of card slot, is used for clamp device The insertion of middle compression bar, compression bar inside are provided with the buckle protrusion mutually agreed with the card slot on the outside of air flow chamber, prevent clamp device water It puts down or slides up and down, the stress distribution when position of the card slot on the outside of air flow chamber is according to pile high temperature, by computer simulation It calculates and determines.Groove position on the outside of the opposite air flow chamber of every a pair is identical, and the card in the adjacent air flow chamber of every a pair Groove location is not then identical, and is staggered up and down, convenient for installing side by side on multiple clamp device vertical directions.
In assembling process, sealing material is first affixed on air flow chamber one side, then air flow chamber is placed in design position, finally will Clamp device is caught in air flow chamber card slot, by digital torque force spanner by all bolt fastenings to same degree.
The settable more set clamp devices of each pile, preferably even number covers clamp device, convenient for integrally tight to battery stack Gu the particular number of effects equalizer, clamp device can be selected according to the size of outflow chamber solid oxide cell pile and needs And determination.
Clamp device (including bolt, nut and compression bar) is process by the alloy material with elevated temperature strength, main to use In the fastening of air flow chamber, prevent the air flow chamber level from sliding, according to the heat of the clamp device and the alloy material of air flow chamber Expansion coefficient difference, under the conditions of high-temperature operation, make the air flow chamber under the action of clamp device with the pile heap Core is tightly combined automatically.
Upper backup pad, lower supporting plate, metal connector are all made of is with same or similar thermal expansion with cell material Several alloy materials, it is preferably to stainless steel alloy material is used, the thermal expansion coefficient of its both any alloy material used The absolute value of difference is not more than the 8% of lesser thermal expansion coefficient.
Air flow chamber needs to select the material of elevated temperature strength with higher, and its thermal expansion coefficient should be greater than clamp device, Air flow chamber preferably uses 310 steel.Clamp device is mainly the thermal expansion coefficient and air flow chamber alloy for the alloy material that screw rod uses The absolute value of the difference of the thermal expansion coefficient of material is not less than the 20% of clamp device thermal expansion coefficient, and screw rod preferably selects intensity High high temperature low bulk stainless steel, preferably 431 stainless steels, or 434 or 436 stainless steels
The general Ceramics material of monocell, thermal expansion coefficient are 10~11 × 10-6K-1；Metal connector, lower supporting plate And upper backup pad selects 430 stainless steels, thermal expansion coefficient is 12 × 10-6K-1；The thermal expansion of metal connector and cell material Coefficient difference optimally should be less than 8%.
Air flow chamber will be born at high temperature from the biggish pressure of clamp device, so should have higher elevated temperature strength, It is preferred that selecting 310 stainless steels, thermal expansion coefficient is 17~18 × 10-6K-1。
Compression bar, screw rod and nut select high temperature low-expansion steel, preferably 431 stainless steels, and thermal expansion coefficient is 11 × 10-6, or 434 or 436 stainless steels；
It is glass-ceramic seal materials between air flow chamber and pile reactor core, this material has certain deformability, can be with The stress of sustained release between the two, therefore thermal expansion coefficient difference between the two does not specially require.
Since the thermal expansion coefficient of battery stack air flow chamber alloy material is higher than the thermal expansion coefficient of external clamp device, It is increased with temperature, clamp device constantly increases the fastening force of air flow chamber, achievees the effect that strengthen compression sealing material, as Self-tightening type outflow chamber solid oxide fuel cell pile of the present invention.
Self-tightening type outflow chamber solid oxide fuel cell pile of the invention using outflow chamber self structure advantage and Feature buckles agreeing with for protrusion in conjunction with the unique design and outflow chamber card slot of clamp device and the compression bar of clamp device, and special Self-tightening type outflow chamber solid oxidation of the invention Xuan Ze not be creatively obtained with the alloy material of different heat expansion coefficient Object fuel cell pile, solving the prior art, existing air flow chamber and pile reactor core are easy to disengaging, elevated-temperature seal for a long time The technical issues of reliability is low equal.
The following are embodiments:
As shown in Figure 1, Figure 2 and Figure 3, be a preferred embodiment according to the invention self-tightening type outflow chamber it is flat solid Oxide body fuel cell pile exploded view.
Fig. 1 is the self-tightening type outflow chamber solid oxide fuel cell pile of the preferred embodiment, specifically includes that support Plate 1, pile reactor core 2, oxic gas air flow chamber 3, air flow chamber seal 4, lower supporting plate 5, fuel gas air flow chamber 6.
Fig. 2 is reactor core cellular construction figure, comprising: metal connector 7, cathode seal 8, monocell 9, anode seal 10.
Fig. 3 is clamp device, comprising: compression bar 11, screw rod 12, nut 13.
1 planar dimension of upper backup pad has certain thickness with the size of pile reactor core 2, and material connect the use of 7 bodies with metal There is gas distributor in the lower surface of same alloy material, upper backup pad 1.Lower supporting plate 2 provides bottom support for entire pile, therefore Total has certain thickness, and also there is gas distributor in the side close to pile reactor core 2, and the bottom of lower supporting plate 2 is machined with One circle raised platforms prevent air flow chamber from sliding up and down for the placement datum level of air flow chamber.
Pile reactor core 2 replaces stacking by monocell 9 and metal connector 7 and forms, cathode sealing 8 and anode seal 10 it is close Closure material is glass ceramic material, and battery the two poles of the earth air-flow is to intersect flow direction, have between metal connector 7 and monocell 9 one layer it is soft The interfacial contact material of property.Fuel gas air flow chamber and oxic gas air flow chamber have two sets of entry/exit gas, do not consider gas delivery conduit Position, air flow chamber facing each other are identical.
Each air flow chamber outside, the i.e. side close with the air flow chamber clamp device are all machined with two pairs of cards up and down Slot is provided with the buckle protrusion mutually agreed with the card slot on the outside of air flow chamber for the insertion of compression bar in clamp device on the inside of compression bar, Two pairs of groove positions on the outside of the opposite air flow chamber of every a pair are identical, and two pairs of card slots in the adjacent air flow chamber of every a pair Position is not then identical, and is staggered up and down, and two pairs of card slots in the opposite air flow chamber of every a pair supply two sets of air flow chamber clamp devices Insertion, each battery stack are provided with altogether 4 sets of clamp devices.
Specific location in air flow chamber for the card slot of clamp device insertion is distributed with reference to computer simulation pile high temperature stress, And it determines in conjunction with specific test result.
Air flow chamber sealing 4 is glass-ceramic seal materials, and size reserves flue with air flow chamber inner frame in air flow chamber Road soldering opening.
Symmetrical two holes in 11 two sides of compression bar, pass through for screw rod 12, the symmetrical two protrusions buckle in 11 inside of compression bar, In the card slot of embeddable air flow chamber, opposite sliding between compression bar 11 and air flow chamber is prevented.
Upper backup pad 1, lower supporting plate 5 and metal connector 7 are all made of 430 stainless steels, and thermal expansion coefficient is 12 × 10- 6K-1, for monocell 9 using ceramic material, thermal expansion coefficient is 10~11 × 10-6K-1, compression bar, screw rod and nut selection 431 are not Become rusty steel, and 431 thermal expansion coefficient of stainless steel are 11 × 10-6K-1；Air flow chamber is using 310 stainless steels, thermal expansion coefficient 17 ~18 × 10-6K-1。
When pile works, as the temperature rises, the support plate of pile, air flow chamber, metal connector, monocell and tight It is fixedly mounted with and sets equal expanded by heating, and since the compression bar, screw rod and nut of clamp device select 431 stainless steels, thermal expansion coefficient (11 ×10-6K-1) far below air flow chamber 310 stainless steels thermal expansion coefficient (17~18 × 10-6K-1), therefore clamp device is to gas The fastening effect of stream chamber is gradually increased, and achievees the effect that self-tightening strengthens compression sealing material.
Fig. 4 is the pile appearance diagram (not including outer gas tube) after being installed.
It will be detailed below a kind of dress of self-tightening type outflow chamber solid oxide fuel cell pile according to the invention Method of completing the square.
Sealing casting belt is laid on lower supporting plate 5, metal connector 7, upper backup pad 1 and air flow chamber in advance and seals on 4 regions. Lower supporting plate 5 is placed on pile mounting plate, monocell 9 and metal connector 7 are vertically successively placed, pile Vertical direction has the conduit of mounting plate to guide, and last a piece of monocell 9 installs upper backup pad 1 above, and pile reactor core 2 installs At.
After pile reactor core 2 is installed, with cylinder give upper backup pad 1 pressurize, then by four air flow chamber exact placements in In 5 raised platforms of lower supporting plate, finally to lower and upper installation clamp device, screw rod 12 is fastened to one with digital torque wrench Determine degree, assembly is completed to obtain the complete galvanic pile module of Fig. 4.
The position of the above structure and undeclared disengaging feed channel, pile volume is different, and the position of air flue also will accordingly change So that pile obtains optimal gas flowfield distribution.This is not emphasis of the invention, therefore is saved herein.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include Within protection scope of the present invention.

Claims (10)

  1. The chamber solid oxide fuel cell pile 1. a kind of self-tightening type outflows, which is characterized in that the battery stack is from top to bottom It include: upper backup pad, pile reactor core, lower supporting plate, the battery stack further includes four for being located at the pile reactor core surrounding Air flow chamber and clamp device positioned at four air flow chambers periphery；
    The upper backup pad and the lower supporting plate provide overall structure for battery stack and support；The bottom of the lower supporting plate adds Work has a circle raised platforms, for the placement datum level of the air flow chamber, prevents the air flow chamber from sliding up and down；
    The pile reactor core is formed by monocell and metal connector alternating stacking；The pile reactor core is rectangular parallelepiped structure；
    Four air flow chambers are respectively two fuel gas flow chambers and two oxic gas air flow chambers；Four air flow chambers with The pile reactor core is connected as an entirety by sealing material, the buffering passed in and out for fuel gas and oxidizing gas；
    The clamp device is used for the fastening of the air flow chamber, prevents the air flow chamber level from sliding, and the clamp device uses Alloy material thermal expansion coefficient be less than the air flow chamber use alloy material thermal expansion coefficient, the difference of both it is exhausted It is not less than the 20% of the thermal expansion coefficient for the alloy material that the clamp device uses to value；
    Using the difference for the alloy material thermal expansion coefficient that the clamp device and the air flow chamber use, make pile hot operation When clamp device the fastening force of air flow chamber is constantly increased, air flow chamber shape in conjunction with pile reactor core under the active force of clamp device State is gradually close, and the sealing state between air flow chamber and reactor core is gradually improved and reinforced.
  2. 2. battery stack as described in claim 1, which is characterized in that the upper backup pad, lower supporting plate, metal connector and The alloy material that monocell uses has same or similar thermal expansion coefficient, the difference of thermal expansion coefficient arbitrarily between the two Absolute value is not more than the 8% of lesser thermal expansion coefficient.
  3. 3. battery stack as described in claim 1, which is characterized in that the alloy material that the air flow chamber uses is stainless for 310 Steel.
  4. 4. battery stack as described in claim 1, which is characterized in that the clamp device is by a pair of of compression bar and a pair of of fastening The square frame of bolt composition, the fastening bolt include screw rod and nut, and two holes are arranged in the compression bar both ends, for described Screw rod passes through, and is then fixed by the nut.
  5. 5. battery stack as claimed in claim 4, which is characterized in that the thermal expansion coefficient for the alloy material that the screw rod uses Less than the thermal expansion coefficient for the alloy material that the air flow chamber uses, the absolute value of the difference of the two is used not less than the screw rod Alloy material thermal expansion coefficient 20%.
  6. 6. battery stack as claimed in claim 4, which is characterized in that be provided with pairs of card slot on the outside of the air flow chamber, use The buckle protrusion mutually agreed with the card slot is provided on the inside of the insertion of the clamp device, the compression bar.
  7. 7. battery stack as described in claim 1, which is characterized in that the battery stack is provided with four sets of fastenings from top to bottom Device.
  8. 8. battery stack as claimed in claim 6, which is characterized in that the position of the card slot on the outside of the air flow chamber is according to pile Stress distribution when work determines.
  9. 9. battery stack as described in claim 1, which is characterized in that be arranged between the metal connector and the monocell There is sealing material, the interfacial seal of the metal connector and the monocell is realized by external pressure.
  10. 10. battery stack as claimed in claim 4, which is characterized in that the tightness of the fastening bolt is by digital torque force Spanner is adjusted, and guarantees that the fastening force of each bolt is identical.
CN201611256611.8A 2016-12-30 2016-12-30 A kind of self-tightening type outflow chamber solid oxide fuel cell pile Expired - Fee Related CN106602119B (en)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109167084A (en) * 2018-09-06 2019-01-08 常州联德电子有限公司 A kind of solid oxide fuel cell metal connector and its quick molding method
CN109411799A (en) * 2018-12-11 2019-03-01 广东索特能源科技有限公司 A kind of pile sealing device and the method that pile is sealed
CN111403787B (en) * 2020-03-30 2021-07-06 东风汽车集团有限公司 Holding tool device for automatic stacking of fuel cell stack
CN112117478A (en) * 2020-06-19 2020-12-22 浙江氢邦科技有限公司 Pressure connection assembly, pressure device, self-pressurizing cell stack and cell stack self-pressurizing method
CN114256478A (en) * 2020-09-22 2022-03-29 国家能源投资集团有限责任公司 Cathode chamber air-tight structure of high-temperature solid oxide fuel cell
CN114824407A (en) * 2022-04-19 2022-07-29 徐州华清京昆能源有限公司 Solid oxide fuel cell stack
CN115064747B (en) * 2022-07-04 2023-12-01 徐州华清京昆能源有限公司 Thermal box structure for solid oxide fuel cell power generation system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102723507A (en) * 2012-05-22 2012-10-10 华中科技大学 External airway type flat solid oxide fuel cell stack and assembling method
CN103311560A (en) * 2012-03-16 2013-09-18 中国科学院宁波材料技术与工程研究所 Solid oxide fuel cell power generating system and cell stack thereof
CN104916860A (en) * 2015-04-23 2015-09-16 常州联德电子有限公司 Outer gas flow cavity-based solid oxide fuel cell electric pile group serial connecting technology
CN105591144A (en) * 2014-11-06 2016-05-18 丰田自动车株式会社 Fuel cell device
CN106252697A (en) * 2016-08-04 2016-12-21 华中科技大学 A kind of outflow chamber SOFC pile

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5519491B2 (en) * 2008-10-02 2014-06-11 日本特殊陶業株式会社 Solid oxide fuel cell

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103311560A (en) * 2012-03-16 2013-09-18 中国科学院宁波材料技术与工程研究所 Solid oxide fuel cell power generating system and cell stack thereof
CN102723507A (en) * 2012-05-22 2012-10-10 华中科技大学 External airway type flat solid oxide fuel cell stack and assembling method
CN105591144A (en) * 2014-11-06 2016-05-18 丰田自动车株式会社 Fuel cell device
CN104916860A (en) * 2015-04-23 2015-09-16 常州联德电子有限公司 Outer gas flow cavity-based solid oxide fuel cell electric pile group serial connecting technology
CN106252697A (en) * 2016-08-04 2016-12-21 华中科技大学 A kind of outflow chamber SOFC pile

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