CN109411799A - A kind of pile sealing device and the method that pile is sealed - Google Patents
A kind of pile sealing device and the method that pile is sealed Download PDFInfo
- Publication number
- CN109411799A CN109411799A CN201811512180.6A CN201811512180A CN109411799A CN 109411799 A CN109411799 A CN 109411799A CN 201811512180 A CN201811512180 A CN 201811512180A CN 109411799 A CN109411799 A CN 109411799A
- Authority
- CN
- China
- Prior art keywords
- box body
- pile
- sealing
- lower box
- galvanic pile
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 13
- 125000006850 spacer group Chemical group 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 55
- 238000010248 power generation Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/2475—Enclosures, casings or containers of fuel cell stacks
-
- 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
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0276—Sealing means characterised by their form
-
- 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
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2484—Details of groupings of fuel cells characterised by external manifolds
- H01M8/2485—Arrangements for sealing external manifolds; Arrangements for mounting external manifolds around a stack
-
- 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
Landscapes
- 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)
- Hybrid Cells (AREA)
Abstract
The invention discloses a kind of pile sealing device and the methods being sealed to pile, including seal box and tracheae, seal box include lower box and upper box；Tracheae is threaded through on lower box, and one end leaks outside in the outside of lower box, and the other end is sealed in the inner cavity of lower box；The bottom of nowel intracoelomic cavity is provided with the pedestal that power supply heap is placed, and the position that lower box and pedestal correspond to tracheae offers the through-hole that air supply pipe is worn；The side of lower box is provided with positive negative terminal；Cushion block is provided at the top of top box intracoelomic cavity, the position that upper box corresponds to cushion block offers the limiting slot fixed for cushion block.Technical solution provided by the invention, by the way that pile is put into a seal box, thus by inside pile interior shifting to relatively simple seal box of the sealing problem by complexity, in addition by the way of reducing pressure difference, so that sealing difficulty reduces, pile sealing effect is promoted, so as to improve the performance and generating efficiency of pile, the effective service life for increasing pile.
Description
Technical Field
The embodiment of the invention relates to the technical field of galvanic pile packaging, in particular to a galvanic pile sealing device and a method for sealing a galvanic pile.
Background
Along with the national requirements on new energy strategies, the high-temperature Solid Oxide Fuel Cell (SOFC) is a high-efficiency, clean, quiet and reliable electrochemical power generation device, is suitable for a distributed type, a mobile power supply and an auxiliary power supply, has wide application prospect in the whole power generation field,
however, in the SOFC stack, the sealing material needs to maintain high sealing performance in a high-temperature environment and an oxidizing environment, the stack has a large number of general layers and a complex structure, thermal expansion between parts increases the difficulty of sealing, and the high-temperature sealing problem is one of the main technical difficulties affecting the development of the solid oxide fuel cell, which is also a main factor affecting the commercialization process of the whole high-temperature solid oxide fuel cell industry.
Disclosure of Invention
Aiming at the problems of difficult sealing and poor effect of the fuel cell galvanic pile at home and abroad at present, the invention provides a galvanic pile sealing device and a method for sealing the galvanic pile so as to solve the defects of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, an embodiment of the present invention provides a galvanic pile sealing device, including a sealing box and an air pipe, where the sealing box includes a lower box body and an upper box body that are assembled with each other, and both the lower box body and the upper box body are semi-enclosed structures and are assembled together to form a closed box body structure;
the air pipe penetrates through the lower box body, one end of the air pipe leaks outside the lower box body, and the other end of the air pipe is sealed in the inner cavity of the lower box body;
a base for placing a power pile is arranged at the bottom of the inner cavity of the lower box body, and through holes for the air pipe to penetrate through are formed in the positions, corresponding to the air pipe, of the lower box body and the base; the side surface of the lower box body is provided with a positive wiring terminal and a negative wiring terminal;
the top of the inner cavity of the upper box body is provided with a cushion block playing a role in clamping the galvanic pile, and a position of the upper box body corresponding to the cushion block is provided with a limit groove for fixing the cushion block.
Furthermore, in the electric pile sealing device, bolt holes are formed in the joint surface of the lower box body and the upper box body, and the lower box body and the upper box body are fixedly connected through the bolt holes through bolts.
Further, in the electric pile sealing device, a sealing strip is further arranged at a joint surface of the lower box body and the upper box body.
Further, in the galvanic pile sealing device, the gas pipe comprises an anode gas inlet pipe, an anode gas outlet pipe, a cathode gas inlet pipe and a cathode gas outlet pipe; wherein,
the anode air outlet pipe and the cathode air outlet pipe are of a three-way structure.
Further, in the electric pile sealing device, the cushion block is a circular cushion block, and the limit groove is a circular limit groove.
In a second aspect, an embodiment of the present invention provides a method for sealing a stack based on the above apparatus, including:
the galvanic pile is arranged inside a galvanic pile sealing device, and cathode gas and anode gas are introduced;
and adjusting the gas pressure of the cathode gas and the anode gas, and sealing the galvanic pile, the cathode gas and the anode gas.
According to the galvanic pile sealing device and the method for sealing the galvanic pile, provided by the embodiment of the invention, the galvanic pile is arranged in the sealing box, so that the sealing problem is transferred from the interior of the complex galvanic pile to the interior of the sealing box which is relatively simple and different from the galvanic pile, and in addition, the sealing difficulty is reduced, the sealing effect of the galvanic pile is improved, the possibility of gas leakage is reduced, the smoothness of gas is improved by a mode of improving the gas pressure and reducing the pressure difference between the gas in the galvanic pile and the exterior of the galvanic pile, so that the performance and the power generation efficiency of the galvanic pile can be improved, and the service life of the galvanic pile is effectively prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a sealing device for a stack according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a stack structure;
FIG. 3 is a schematic view of the structure of the airway plate;
fig. 4 is a schematic flow chart of a method for sealing a stack according to a second embodiment of the present invention.
Reference numerals:
the air pipe comprises a sealing box 10, an air pipe 20, a base 30, a cushion block 40 and positive and negative wiring terminals 50;
a lower case 11, an upper case 12;
an anode inlet pipe 21, an anode outlet pipe 22, a cathode inlet pipe 23 and a cathode outlet pipe 24.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Example one
As shown in fig. 1, an embodiment of the present invention provides a galvanic pile sealing device, including a sealing box 10 and an air pipe 20, where the sealing box 10 includes a lower box 11 and an upper box 12 that are assembled with each other, and both the lower box 11 and the upper box 12 are semi-closed structures and are combined together to form a closed box structure;
the air pipe 20 penetrates through the lower box body 11, one end of the air pipe 20 leaks outside the lower box body 11, and the other end of the air pipe 20 is sealed in the inner cavity of the lower box body 11;
a base 30 for placing a power pile is arranged at the bottom of the inner cavity of the lower box body 11, and through holes for the air pipe 20 to penetrate through are formed in the positions of the lower box body 11 and the base 30 corresponding to the air pipe 20; the side surface of the lower box body 11 is provided with a positive wiring terminal 50 and a negative wiring terminal 50;
the top of the inner cavity of the upper box body 12 is provided with a cushion block 40 playing a role in clamping the galvanic pile, and a position of the upper box body 12 corresponding to the cushion block 40 is provided with a limit groove for fixing the cushion block 40.
Preferably, the joint surface of the lower box body 11 and the upper box body 12 is provided with bolt holes, and the lower box body 11 and the upper box body 12 are connected and fixed through the bolt holes by bolts.
In order to enhance the sealing effect, a sealing strip or a sealing ring is further arranged at the joint surface of the lower box body 11 and the upper box body 12.
In the embodiment of the present invention, the gas pipe 20 includes an anode gas inlet pipe 21, an anode gas outlet pipe 22, a cathode gas inlet pipe 23, and a cathode gas outlet pipe 24;
the anode outlet pipe 22 and the cathode outlet pipe 24 are of a three-way structure and are used for gathering and discharging anode gas or cathode gas.
Preferably, the cushion block 40 is a circular cushion block, and the limit groove is a circular limit groove.
It should be noted that, as shown in fig. 2, the stack structure in the embodiment of the present invention sequentially includes, from top to bottom, a cell, a pressing plate, an upper air channel plate, a lower air channel plate, another pressing plate, and another cell, where the upper air channel plate and the lower air channel plate are of a symmetrical reverse structure; fig. 3 is a schematic diagram of the structure of the gas channel plate, wherein anode gas (hydrogen) enters from a in the figure, passes through the anode gas channel of the cell, and flows out from B, C in the figure after reaction, cathode gas (air) flows into the cathode gas channel of the cell from D in the figure, and flows out from E, F in the figure after reaction.
It should be further noted that the top of the stack is provided with an opening, and when gas flows in from a in the figure, one part of the gas flows through B, C in the figure to react, and the other part of the gas flows out from the top, so that the inside of the whole sealed box 10 is filled.
According to the galvanic pile sealing device provided by the embodiment of the invention, the galvanic piles are arranged in the sealing box, so that the sealing problem is transferred from the interior of the complex galvanic pile to the interior of the sealing box which is relatively simple and different from the galvanic pile, and in addition, the sealing difficulty is reduced by improving the gas pressure and reducing the pressure difference between the gas in the galvanic pile and the exterior of the galvanic pile, the sealing effect of the galvanic pile is improved, the possibility of gas leakage is reduced, the smoothness of the gas is improved, the performance and the power generation efficiency of the galvanic pile can be improved, and the service life of the galvanic pile is effectively prolonged.
Example two
Fig. 4 is a method for sealing a stack according to a second embodiment of the present invention, where the method is implemented based on the apparatus according to the first embodiment, and includes the following steps:
s401, the galvanic pile is arranged inside a galvanic pile sealing device, and cathode gas and anode gas are introduced.
S402, adjusting the gas pressure of the cathode gas and the anode gas, and sealing the galvanic pile, the cathode gas and the anode gas.
In order to more clearly show the implementation of the solution provided by the embodiments of the present invention, a detailed description is given by taking a specific example.
Firstly, the galvanic pile is arranged in a galvanic pile sealing device, high-temperature reaction gas is introduced from an anode gas inlet pipe, anode gas enters from a bottom plate of the galvanic pile and fills the sealing box through an opening of a top plate of the galvanic pile, so that the gas pressure of the anode gas inlet side in the galvanic pile is consistent with the gas pressure in the sealing box, and the problem of sealing the anode with the outside is solved; meanwhile, the pressure of the two gases is basically consistent by controlling the inlet pressure of the anode and the cathode, so that the gas pressure of the cathode side is close to the gas pressure outside the galvanic pile, and the sealing difficulty can be reduced; because what the pile outside (be inside the seal box) exists is positive pole reducing gas, can play the effect of protection pile sheetmetal, avoid the sheetmetal to be oxidized in high temperature environment, the effectual life-span that increases the pile.
According to the method for sealing the galvanic pile, provided by the embodiment of the invention, the galvanic pile is arranged in the sealing box, so that the sealing problem is transferred from the interior of the complex galvanic pile to the interior of the sealing box which is relatively simple and different from the galvanic pile, and in addition, the sealing difficulty is reduced, the sealing effect of the galvanic pile is improved, the possibility of gas leakage is reduced, the smoothness of gas is improved, the performance and the power generation efficiency of the galvanic pile can be improved, and the service life of the galvanic pile is effectively prolonged by a mode of improving the gas pressure and reducing the pressure difference between the gas in the galvanic pile and the exterior of the galvanic pile.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The galvanic pile sealing device is characterized by comprising a sealing box and an air pipe, wherein the sealing box comprises a lower box body and an upper box body which are mutually combined and installed, and the lower box body and the upper box body are both of semi-closed structures and are combined together to form a closed box body structure;
the air pipe penetrates through the lower box body, one end of the air pipe leaks outside the lower box body, and the other end of the air pipe is sealed in the inner cavity of the lower box body;
a base for placing a power pile is arranged at the bottom of the inner cavity of the lower box body, and through holes for the air pipe to penetrate through are formed in the positions, corresponding to the air pipe, of the lower box body and the base; the side surface of the lower box body is provided with a positive wiring terminal and a negative wiring terminal;
the top of the inner cavity of the upper box body is provided with a cushion block playing a role in clamping the galvanic pile, and a position of the upper box body corresponding to the cushion block is provided with a limit groove for fixing the cushion block.
2. The galvanic pile sealing device according to claim 1, wherein bolt holes are formed in the joint surfaces of the lower box body and the upper box body, and the lower box body and the upper box body are fixedly connected through the bolt holes by bolts.
3. The galvanic pile sealing device according to claim 2, wherein a sealing strip is further provided at the joint surface of the lower case and the upper case.
4. The galvanic stack sealing device according to claim 1, wherein the gas pipe comprises an anode gas inlet pipe, an anode gas outlet pipe, a cathode gas inlet pipe, and a cathode gas outlet pipe; wherein,
the anode air outlet pipe and the cathode air outlet pipe are of a three-way structure.
5. The stack sealing device according to claim 1, wherein the spacer is a circular spacer and the limiting groove is a circular limiting groove.
6. A method for sealing a stack based on the device according to any one of claims 1 to 5, comprising:
the galvanic pile is arranged inside a galvanic pile sealing device, and cathode gas and anode gas are introduced;
and adjusting the gas pressure of the cathode gas and the anode gas, and sealing the galvanic pile, the cathode gas and the anode gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512180.6A CN109411799A (en) | 2018-12-11 | 2018-12-11 | A kind of pile sealing device and the method that pile is sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512180.6A CN109411799A (en) | 2018-12-11 | 2018-12-11 | A kind of pile sealing device and the method that pile is sealed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109411799A true CN109411799A (en) | 2019-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811512180.6A Pending CN109411799A (en) | 2018-12-11 | 2018-12-11 | A kind of pile sealing device and the method that pile is sealed |
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| CN (1) | CN109411799A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254256A (en) * | 2019-07-19 | 2019-09-20 | 上海机动车检测认证技术研究中心有限公司 | A kind of pile frame |
| CN112310456A (en) * | 2020-10-31 | 2021-02-02 | 湖南钒谷新能源技术有限公司 | Electric pile combined module, assembling method thereof and flow battery system |
| CN115051013A (en) * | 2022-08-02 | 2022-09-13 | 广东佛燃科技有限公司 | Electric pile shell sealing structure for solid oxide fuel cell system |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254256A (en) * | 2019-07-19 | 2019-09-20 | 上海机动车检测认证技术研究中心有限公司 | A kind of pile frame |
| CN112310456A (en) * | 2020-10-31 | 2021-02-02 | 湖南钒谷新能源技术有限公司 | Electric pile combined module, assembling method thereof and flow battery system |
| CN115051013A (en) * | 2022-08-02 | 2022-09-13 | 广东佛燃科技有限公司 | Electric pile shell sealing structure for solid oxide fuel cell system |
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Application publication date: 20190301 |