CN112259774A - Device for independently inspecting and replacing bipolar plates and membrane electrode assemblies clamped by bipolar plates in stack and using method - Google Patents
Device for independently inspecting and replacing bipolar plates and membrane electrode assemblies clamped by bipolar plates in stack and using method Download PDFInfo
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- CN112259774A CN112259774A CN202011255480.8A CN202011255480A CN112259774A CN 112259774 A CN112259774 A CN 112259774A CN 202011255480 A CN202011255480 A CN 202011255480A CN 112259774 A CN112259774 A CN 112259774A
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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
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
-
- 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
- H01M8/2404—Processes or apparatus for grouping 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
-
- 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
- H01M8/248—Means for compression of the fuel cell stacks
-
- 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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Abstract
The invention discloses a device for independently inspecting and replacing a bipolar plate and a membrane electrode assembly clamped by the bipolar plate in a stack and a using method thereof, belonging to the field of electrochemistry. The top of the bipolar plate in the pile is provided with a handle, the bottoms of the two side surfaces of the bipolar plate in the pile are respectively provided with a stud, the stud is provided with a through hole and a hole, the end plates at the two sides of the pile are provided with slideways, the slideways are provided with slide blocks, a swing arm is arranged between every two adjacent slide blocks, and the stud is positioned under the rectangular frame structure; the through hole bolt penetrates through the through hole to be fixedly connected with the bipolar plate which is not overhauled; the hole bolt is screwed into the hole through the swing arm, the swing arm and the stud on the bipolar plate which is clamped with the membrane electrode to be tested are fixedly connected through the hole bolt, and the bipolar plate which is clamped with the membrane electrode to be tested is taken out by pushing the stud in the direction of the handle. The invention aims to solve the problem that membrane assemblies needing to be checked or replaced cannot be taken out under the condition of not disassembling the stack at present, and the like.
Description
Technical Field
The invention belongs to the field of electrochemistry, and particularly relates to a device for independently inspecting and replacing a bipolar plate and a membrane electrode assembly clamped by the bipolar plate in a galvanic pile and a use method.
Background
The fuel cell is an electrochemical converter. Hydrogen (or an energy source containing hydrogen) and oxygen are directly converted into electric energy. The fuel cell invented by William Robert gloff (Sir William Robert Grove) in 1839 can efficiently generate electric energy through a non-combustible electrochemical process, and it is important that CO is not emitted during use2. Proton Exchange Membrane Fuel Cells (PEMFCs) containing hydrogen fuel are considered as the most promising alternative energy source in various applications. Hydrogen Fuel Cells (HFCs) have become very attractive, especially for automotive applications, due to their advantages of low noise, low operating temperature and high power density. As a result of the urgent need to find a low carbon path for human energy in the future, many countries are pushing the deployment of hydrogen technology and hydrogen fuel cells not only for transportation, but also for storing an inordinate amount of renewable energy from wind and solar farms.
Proton Exchange Membrane Fuel Cells (PEMFCs) are typically designed as a stack structure in which many cells are clamped together by end plates. However, stacking presents significant difficulties in evaluating the performance of its cell stack assembly. The membrane component is easy to corrode and damage, and is the part which needs to be inspected and replaced most in the galvanic pile, but the current structural design can not effectively and independently inspect and replace the galvanic pile component.
Disclosure of Invention
The invention aims to provide a device for independently inspecting and replacing a bipolar plate and a membrane electrode assembly clamped by the bipolar plate in a stack and a using method thereof, and aims to solve the problem that the stack assembly is difficult to independently inspect in the existing stacking design method. The device can be used for independent inspection of the fuel cell stack assembly.
In order to realize the purpose of the invention, the invention provides a device for independently inspecting and replacing a bipolar plate in a stack and a membrane electrode assembly clamped by the bipolar plate, wherein the top of the bipolar plate in the stack is provided with a handle, the bottoms of the two side surfaces of the bipolar plate in the stack are provided with studs, the studs and the bipolar plate are on the same horizontal plane, the studs are provided with through holes and holes, the through holes are vertical to the horizontal plane where the studs and the bipolar plate are positioned and penetrate through the studs, and the holes are vertical to the thickness surface of the studs and do not penetrate through the studs; the thickness surfaces of the side surfaces of the end plates at two sides of the pile are provided with slideways which protrude out of the plane where the pile is positioned, the slideways are provided with sliding blocks, a swing arm is arranged between every two adjacent sliding blocks, each swing arm is of a rectangular frame structure, a bolt is positioned right below the rectangular frame structure, and the surface, which is far away from the bipolar plate and is parallel to the thickness surface of the bipolar plate, of the bolt is tangent to the swing arm or has a certain gap; the through hole bolt penetrates through the through hole to be fixedly connected with the bipolar plate which is not overhauled; the hole bolt is screwed into the hole through the swing arm, the swing arm and the stud on the bipolar plate which wraps the membrane electrode to be tested are fixedly connected through the hole bolt in a detachable mode, and the bipolar plate which wraps the membrane electrode to be tested is taken out by pushing the stud in the direction of the lifting handle.
Further, in the above technical solution, the slide rail and the slide block constitute a slide rail device, and the device is provided with 2 or 4 slide rail devices.
Furthermore, in the above technical scheme, the slide rail device is detachably connected with the end plate of the pile, and the swing arm is detachably connected with the sliding block.
Further, in the above technical scheme, a sealing gasket is arranged between two adjacent bipolar plates in the stack.
Further, in the technical scheme, the dynamic load of the sliding block is 1-300 kN.
Further, in the above technical solution, the gap is not greater than 1 cm.
Furthermore, in the above technical solution, the material of the sliding block, the sliding way and the swing arm includes plastic, wood, alloy or metal.
Further, in the above technical solution, the plastic includes PET, HDPE, PVC, LDPE, PP, PS, PC, PHA, PLA, PCL, PBS, PBSA; the alloy comprises nodular cast iron, manganese steel, stainless steel, brass, bronze, cupronickel, soldering tin and hard aluminum; the metal comprises steel, copper, aluminum, lead and titanium.
Further, in the above technical solution, the material of the sealing gasket includes neoprene, natural rubber, nitrile rubber, chlorosulfonated polyethylene synthetic rubber, silicone rubber, ethylene propylene rubber, fluororubber, polytetrafluoroethylene, polypropylene, polyethylene, polyvinyl chloride, polyamide, polycarbonate, polyethylene terephthalate, polymethyl methacrylate, polyamide resin, or polybutylene terephthalate.
Preferably, the length range of the slide way is 1-100cm, the width range is 1-10cm, the length range of the swing arm is 1-150cm, the width range is 1-10cm, the length range of the stud is 1-10cm, the width range is 1-1.5cm, the height range is 1-1.5cm, the diameter ranges of the hole (6) and the hole (9) are 1-1.5cm, the vertical depth of the hole (6) is 1-10cm, and the vertical depth of the opening hole (9) is 1-1.5 cm.
The bipolar plate is made of one of graphite, Au, Pt, Ti, stainless steel and other metals and is compounded with the bipolar plate.
The device can be used for independent inspection of the fuel cell stack.
The invention also provides a use method of the device for independently inspecting and replacing the bipolar plate and the membrane electrode assembly clamped by the bipolar plate in the stack, which comprises the following steps:
(1) assembling the galvanic pile, compacting by using a galvanic pile assembling machine, detecting the airtightness of the galvanic pile, and normally using the galvanic pile;
(2) when the membrane electrode clamped by the bipolar plate needs to be inspected or replaced, the sliding rail device and the swing arm are installed according to the method, the bipolar plate clamped with the membrane electrode to be detected is fixed on the swing arm by using the hole bolt, and the rest bipolar plates are fixed by the through hole bolt to prevent movement;
(3) pushing the swing arm towards the direction of the lifting handle to push the bipolar plate which is clamped with the membrane electrode to be detected out of the stack, and taking out the bipolar plate and the membrane electrode assembly clamped by the bipolar plate through the lifting handle;
(4) after detection is finished, the bipolar plate is clamped with the replaced membrane electrode and inserted into the corresponding position in the galvanic pile, the galvanic pile is compressed by the galvanic pile assembling machine and is detected to be airtight, and the sealing gasket is used for sealing, so that inspection and replacement are finished.
The device designed by the invention can be used for designing the required slide rail, the length of the swing arm and the load of the slide block by carrying out scale enlargement on the size of the bipolar plate.
The device designed by the invention has simple structure and convenient processing, the area and the volume of the bipolar plate in the device can be simply reduced or enlarged, and the matched slide rail device can be synchronously customized, so that the independent inspection and/or replacement of the membrane electrode assembly clamped by the bipolar plate and the bipolar plate can be effectively realized under the condition of not disassembling the stack.
The invention can selectively take out the membrane electrode needing to be checked or replaced under the clamping of the bipolar plates at the two sides. The reaction device can be simply enlarged, and the membrane electrode clamped by the bipolar plate can be independently taken out.
Drawings
Fig. 1 is a schematic structural diagram of the device for independently inspecting and replacing the bipolar plate and the membrane electrode assembly clamped by the bipolar plate in the stack.
Fig. 2 is a left side view of the apparatus for independently inspecting and replacing bipolar plates and a membrane electrode assembly sandwiched by the bipolar plates in a stack according to the present invention.
Figure 3 is a schematic view of the front side gas flow field configuration of a bipolar plate in an example embodiment.
Figure 4 is a schematic view of the backside cooling water flow field configuration of the bipolar plate in an example embodiment.
Fig. 5 is a diagram of the use of the apparatus for independently inspecting and replacing bipolar plates and bipolar plate-sandwiched mea in a stack according to the present invention.
In the figure, 1, a slide block; 2. a slideway; 3. a slide rail device; 4. swinging arms; 5. a stud; 6. an aperture; 7. a bipolar plate; 8. a gasket; 9. a through hole; 10. a handle; 11. an end plate; 12. a hole bolt; 13. and (4) through hole bolts.
Detailed Description
The following non-limiting examples will allow one of ordinary skill in the art to more fully understand the present invention, but are not intended to limit the invention in any way.
Example 1
An apparatus for independently inspecting and replacing bipolar plates and a membrane electrode assembly sandwiched by the bipolar plates in a stack is shown in fig. 1-3. The top of the bipolar plate in the galvanic pile is provided with a handle 9, the bottoms of the two side surfaces of the bipolar plate in the galvanic pile are provided with studs 5, the studs 5 and the bipolar plate are on the same horizontal plane, the studs 5 are provided with through holes 9 and holes 6, the through holes 9 are vertical to the horizontal planes of the studs 5 and the bipolar plate and penetrate through the studs 5, and the holes 6 are vertical to the thickness surface of the studs 5 and do not penetrate through the studs 5; the thickness surfaces of the side surfaces of the end plates on the two sides of the pile are provided with slideways 2, the slideways 2 protrude out of the plane where the pile is located, the slideways 2 are provided with sliding blocks 1, a swing arm 4 is arranged between every two adjacent sliding blocks 1, the swing arm 4 is of a rectangular frame structure, a bolt 5 is positioned right below the rectangular frame structure, the surface, which is far away from the bipolar plate and is parallel to the thickness surface of the bipolar plate, of the bolt 5 is tangent to the swing arm 4 or has a gap not larger than 1 cm; a through hole bolt 13 penetrates through the through hole 9 to be fixedly connected with the bipolar plate which is not overhauled; the hole bolt 12 is screwed into the hole 6 through the swing arm 4, the swing arm 4 and the bolt 5 on the bipolar plate which is clamped with the membrane electrode to be tested are fixedly connected through the hole bolt 12 in a detachable mode, and the bipolar plate which is clamped with the membrane electrode to be tested is taken out by pushing the bolt 5 towards the handle 9. The slide rail device 3 is composed of the slide rail 2 and the slide block 1, and 4 slide rail devices 3 are arranged on the device. The slide rail device 3 is detachably connected with the pile end plate, and the swing arm 4 is detachably connected with the sliding block 1. A sealing gasket 8 is arranged between two adjacent bipolar plates in the stack. The dynamic load of the slide block 1 is 1-300 kN. The sliding block 1, the slide way 2 and the swing arm 4 are made of one of plastic, wood or stainless steel. The material of the sealing gasket 8 comprises neoprene, natural rubber, butadiene-acrylonitrile rubber, chlorosulfonated polyethylene synthetic rubber, silicon rubber, ethylene propylene rubber, fluororubber, polytetrafluoroethylene, polypropylene, polyethylene, polyvinyl chloride, polyamide, polycarbonate, polyethylene terephthalate, polymethyl methacrylate, polyamide resin or polybutylene terephthalate.
Example 2
A use method of a device for independently inspecting and replacing a bipolar plate and a membrane electrode assembly clamped by the bipolar plate in a stack comprises the following steps:
the steps of assembling the stack are as follows:
(1) designing a bipolar plate
The size and shape of the bipolar plate and the sealing ring are designed, and one material is selected for processing. The shape of the plug is cuboid, the length range of the plug is 1-10cm, the width range is 1-1.5cm, and the height range is 1-1.5 cm.
The bipolar plate is made of graphite, Au, Pt, Ti, stainless steel and other metals, the composite bipolar plate is made of chloroprene rubber, natural rubber, butadiene-acrylonitrile rubber, chlorosulfonated polyethylene synthetic rubber, silicon rubber, ethylene propylene rubber, fluororubber, polytetrafluoroethylene, polypropylene, polyethylene, polyvinyl chloride, polyamide, polycarbonate, polyethylene terephthalate, polymethyl methacrylate, polyamide resin and polybutylene terephthalate.
(2) Design slide rail
The length range of the device slideway is 1-100cm, the width is 1-10cm, the sliding block dynamic load is 1-300kN, the length range of the swing arm is 1-150cm, and the width is 1-10 cm.
The slide block, the slide way and the swing arm are made of plastics, wood, alloy or metal.
Further, the plastics include PET, HDPE, PVC, LDPE, PP, PS, PC, PHA, PLA, PCL, PBS, PBSA; the alloy comprises nodular cast iron, manganese steel, stainless steel, brass, bronze, cupronickel, soldering tin and hard aluminum; the metal comprises steel, copper, aluminum, lead and titanium.
Firstly, assembling a galvanic pile, and sequentially overlapping a bipolar plate, a membrane electrode and the bipolar plate on a lower end plate on which an insulating plate and a current collecting plate are installed; repeating the steps, and regularly stacking the single cells into a stack by using an assembly auxiliary positioning device; finally, stacking the upper end plate part, and applying designed pressure to tightly press the galvanic pile by using a galvanic pile assembling machine; carrying out air tightness detection according to a test flow; after the air tightness detection is passed, under the condition of keeping the pressure, the fastening screw rod is installed. The pressure can then be removed and laid flat and the stack assembly completed.
The galvanic pile is normally used, the membrane electrode is periodically overhauled or replaced,
when the membrane electrode clamped by the bipolar plate needs to be inspected or replaced, the sliding rail device and the swing arm are installed according to the method, the bipolar plate clamped with the membrane electrode to be detected is fixed on the swing arm by using the hole bolt, and the rest bipolar plates are fixed by the through hole bolt to prevent movement;
pushing the swing arm towards the direction of the lifting handle to push the bipolar plate which is clamped with the membrane electrode to be detected out of the stack, and taking out the bipolar plate and the membrane electrode assembly clamped by the bipolar plate through the lifting handle;
after detection is finished, the bipolar plate is clamped with the replaced membrane electrode and inserted into the corresponding position in the galvanic pile, the galvanic pile is compressed by the galvanic pile assembling machine and is sealed by the sealing gasket, and inspection and replacement are finished.
Example 3
215cm2Preparing a membrane electrode stack:
designing and processing each part of the reaction device, wherein the length of the bipolar plate is 230mm (including the height of a handle), the width is 176mm, the thickness is 5mm, the length of the stud is 30mm, the width is 10mm, the thickness is 5mm consistent with that of the bipolar plate, a threaded hole with the diameter of 3mm and the depth of 25mm is formed in the direction of the stud perpendicular to the bipolar plate, a through hole with the diameter of 3mm and the depth of 5mm is formed in the position 5mm away from the edge of the stud in the direction perpendicular to the stud, the length of the slide way is 230mm, the maximum dynamic load of the sliding block is 33.9kN, the length of the swing arm is adjustable after stacking, the material of the swing arm is stainless steel, the material of the sealing gasket is silicone rubber, the sliding block and the swing arm are stainless steel, and the bipolar plate is 215cm2The membrane electrode and the bipolar plate are sequentially superposed on the lower end plate provided with the insulating plate and the current collecting plate; repeating the steps for 10 times, and regularly stacking the single cells into a stack by using an assembly auxiliary positioning device; finally, stacking the upper end plate part, and applying designed pressure to tightly press the galvanic pile by using an assembling machine; carrying out air tightness detection according to a test flow; after the air tightness detection is passed, under the condition of keeping the pressure, the fastening screw rod is installed. The pressure can then be removed and laid flat,and finishing the electric pile assembly.
When the membrane electrode needs to be inspected or replaced, a slide rail device is arranged on the assembled galvanic pile, the slide ways are symmetrically arranged on the side edges of the end plates at the two sides, the number of the slide ways is four, and the slide blocks and the swing arms fixed with the slide blocks are arranged on the slide ways.
Fixing the bipolar plate with the membrane electrode to be tested on the swing arm by using a hole bolt, and fixing the rest bipolar plates by using through hole bolts to prevent movement;
pushing the swing arm towards the direction of the lifting handle to push the bipolar plate which is clamped with the membrane electrode to be detected out of the stack, and taking out the bipolar plate and the membrane electrode assembly clamped by the bipolar plate through the lifting handle;
after detection is finished, the bipolar plate is clamped with the replaced membrane electrode and inserted into the corresponding position in the galvanic pile, the galvanic pile is compressed by the galvanic pile assembling machine and is sealed by the sealing gasket, and inspection and replacement are finished.
Claims (10)
1. A device for independently inspecting and replacing a bipolar plate and a membrane electrode assembly clamped by the bipolar plate in a stack is characterized in that a handle (9) is arranged at the top of the bipolar plate in the stack, studs (5) are arranged at the bottoms of the two side surfaces of the bipolar plate in the stack, the studs (5) and the bipolar plate are on the same horizontal plane, through holes (9) and holes (6) are formed in the studs (5), the through holes (9) are vertical to the horizontal plane where the studs (5) and the bipolar plate are located and penetrate through the studs (5), and the holes (6) are vertical to the thickness surface of the studs (5) and do not penetrate through the studs (5); the thickness surfaces of the side surfaces of the end plates on the two sides of the pile are provided with slideways (2), the slideways (2) protrude out of the plane where the pile is located, the slideways (2) are provided with sliding blocks (1), a swing arm (4) is arranged between every two adjacent sliding blocks (1), the swing arm (4) is of a rectangular frame structure, a bolt post (5) is positioned right below the rectangular frame structure, and the surface, which is far away from the bipolar plate and is parallel to the thickness surface of the bipolar plate, of the bolt post (5) is tangent to the swing arm (4) or has a certain gap; a through hole bolt (13) penetrates through the through hole (9) to be fixedly connected with the bipolar plate which is not overhauled; the hole bolt (12) is screwed into the hole (6) through the swing arm (4), the swing arm (4) and the bolt column (5) on the bipolar plate wrapping the membrane electrode to be tested are fixedly connected through the hole bolt (12) in a detachable mode, and the bipolar plate wrapping the membrane electrode to be tested is taken out by pushing the bolt column (5) towards the handle (9).
2. The device according to claim 1, characterized in that the slide (2) and the slide (1) constitute a slide rail device (3), and the device is provided with 2 or 4 slide rail devices (3).
3. The device according to claim 1, characterized in that the slide rail device (3) is detachably connected with the end plate of the pile, and the swing arm (4) is detachably connected with the sliding block (1).
4. Device according to claim 1, characterized in that a sealing gasket (8) is provided between two adjacent bipolar plates in the stack.
5. Device according to claim 1, characterized in that the dynamic load of the slide (1) is 1-300 kN.
6. The device of claim 1, wherein the gap is no greater than 1 cm.
7. The device according to claim 1, characterized in that the material of the slide (1), the slide (2) and the swing arm (4) comprises plastic, wood, alloy or metal.
8. The device of claim 7, wherein the plastic comprises PET, HDPE, PVC, LDPE, PP, PS, PC, PHA, PLA, PCL, PBS, PBSA; the alloy comprises nodular cast iron, manganese steel, stainless steel, brass, bronze, cupronickel, soldering tin and hard aluminum; the metal comprises steel, copper, aluminum, lead and titanium.
9. The device according to claim 1, wherein the material of the sealing gasket (8) comprises neoprene, natural rubber, nitrile rubber, chlorosulfonated polyethylene synthetic rubber, silicone rubber, ethylene propylene rubber, fluororubber, polytetrafluoroethylene, polypropylene, polyethylene, polyvinyl chloride, polyamide, polycarbonate, polyethylene terephthalate, polymethyl methacrylate, polyamide resin, or polybutylene terephthalate.
10. The use method of the device for independently inspecting and replacing the bipolar plate and the membrane electrode assembly clamped by the bipolar plate in the stack is characterized by comprising the following steps:
(1) assembling the galvanic pile, compacting by using a galvanic pile assembling machine, detecting the airtightness of the galvanic pile, and normally using the galvanic pile;
(2) when the membrane electrode clamped by the bipolar plate needs to be inspected or replaced, a sliding rail device and a swing arm are installed according to the method of any one of claims 1 to 9, the bipolar plate clamped with the membrane electrode to be tested is fixed on the swing arm by using a hole bolt, and the rest bipolar plates are fixed by using a through hole bolt to prevent movement;
(3) pushing the swing arm towards the direction of the lifting handle to push the bipolar plate which is clamped with the membrane electrode to be detected out of the stack, and taking out the bipolar plate and the membrane electrode assembly clamped by the bipolar plate through the lifting handle;
(4) after detection is finished, the bipolar plate is clamped with the replaced membrane electrode and inserted into the corresponding position in the galvanic pile, the galvanic pile is compressed by the galvanic pile assembling machine and is detected to be airtight, and the sealing gasket is used for sealing, so that inspection and replacement are finished.
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| CN202011255480.8A CN112259774B (en) | 2020-11-11 | 2020-11-11 | Device for independently inspecting and replacing bipolar plates in galvanic pile and membrane electrode assemblies wrapped by bipolar plates and application method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115036548A (en) * | 2022-06-02 | 2022-09-09 | 深圳市氢蓝时代动力科技有限公司 | Battery pile repair equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014202215A1 (en) * | 2014-02-06 | 2015-08-06 | Volkswagen Aktiengesellschaft | Fuel cell stack and method for its assembly |
| CN107204481A (en) * | 2017-06-20 | 2017-09-26 | 大连理工大学 | A kind of high reliability fuel cell stack enclosure design method |
| CN208608307U (en) * | 2018-08-30 | 2019-03-15 | 北京新研创能科技有限公司 | A kind of assembling and positioning structure of fuel cell pile |
| CN110492163A (en) * | 2019-09-16 | 2019-11-22 | 中自环保科技股份有限公司 | A kind of fuel cell pile and its assembly method |
| CN213401272U (en) * | 2020-11-11 | 2021-06-08 | 大连理工大学 | Device for independently inspecting and replacing bipolar plate and membrane electrode assembly clamped by bipolar plate in electric pile |
-
2020
- 2020-11-11 CN CN202011255480.8A patent/CN112259774B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014202215A1 (en) * | 2014-02-06 | 2015-08-06 | Volkswagen Aktiengesellschaft | Fuel cell stack and method for its assembly |
| CN107204481A (en) * | 2017-06-20 | 2017-09-26 | 大连理工大学 | A kind of high reliability fuel cell stack enclosure design method |
| CN208608307U (en) * | 2018-08-30 | 2019-03-15 | 北京新研创能科技有限公司 | A kind of assembling and positioning structure of fuel cell pile |
| CN110492163A (en) * | 2019-09-16 | 2019-11-22 | 中自环保科技股份有限公司 | A kind of fuel cell pile and its assembly method |
| CN213401272U (en) * | 2020-11-11 | 2021-06-08 | 大连理工大学 | Device for independently inspecting and replacing bipolar plate and membrane electrode assembly clamped by bipolar plate in electric pile |
Non-Patent Citations (1)
| Title |
|---|
| 冷巧辉;马利;文东辉;鲁聪达;潘国庆;: "燃料电池双极板材料及其流场研究进展", 机电工程, no. 05, 20 May 2013 (2013-05-20), pages 513 - 517 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115036548A (en) * | 2022-06-02 | 2022-09-09 | 深圳市氢蓝时代动力科技有限公司 | Battery pile repair equipment |
| CN115036548B (en) * | 2022-06-02 | 2023-09-08 | 深圳市氢蓝时代动力科技有限公司 | Battery stack repair equipment |
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| CN112259774B (en) | 2024-04-09 |
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