CN203287295U - Air permeability testing device for proton exchange membrane fuel cell membrane electrode assembly - Google Patents
Air permeability testing device for proton exchange membrane fuel cell membrane electrode assembly Download PDFInfo
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- CN203287295U CN203287295U CN2013202293243U CN201320229324U CN203287295U CN 203287295 U CN203287295 U CN 203287295U CN 2013202293243 U CN2013202293243 U CN 2013202293243U CN 201320229324 U CN201320229324 U CN 201320229324U CN 203287295 U CN203287295 U CN 203287295U
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- upper fixture
- lower clamp
- membrane electrode
- electrode assembly
- proton exchange
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Abstract
The utility model provides an air permeability testing device for a proton exchange membrane fuel cell membrane electrode assembly, and relates to a device used in the air permeability test of the proton exchange membrane fuel cell membrane electrode assembly. The air permeability testing device is characterized by comprising an upper fixture, seal rings, a lower fixture and assembly bolts; the lower fixture, one of the seal rings, a membrane electrode assembly, another seal ring and an upper fixture are mounted well through the assembly bolts from the bottom up in sequence; a lower fixture air inlet joint and a lower fixture air outlet joint are machined on the lower fixture; an upper fixture air outlet joint and an upper water inlet joint are machined on the upper fixture. The air permeability testing device has the characteristics of novel and simple structure, low cost, convenience for use, accuracy in test and the like, and therefore, the air permeability testing device belongs to the novel air permeability testing device for the proton exchange membrane fuel cell membrane electrode assembly, which integrates economy and practicability.
Description
Technical field
Film electrode component of proton exchange film fuel battery ventilation property test device described in the utility model, relate to a kind of film electrode component of proton exchange film fuel battery gas penetration potential and test the device of use.
Background technology
Membrane electrode assembly is the core component of fuel cell power generation, and the bipolar plates of membrane electrode and its both sides has formed the elementary cell-fuel-cell single-cell of fuel cell, and the performance of membrane electrode and life-span are to determine one of fuel cell system performance and the key factor in life-span.Because the membrane electrode assembly both sides pass into respectively fuel (be generally hydrogen or contain the reformed gas of hydrogen) and oxygenant (being generally air or oxygen), membrane electrode assembly must have good chemical stability and mechanical stability, thereby can completely cut off well fuel and oxygenant.Therefore, the gas penetration potential of membrane electrode assembly is a very crucial technical indicator, if the membrane electrode assembly gas penetration potential is larger, in use fuel and oxygenant will be altered mutually, cause not only that fuel battery performance declines to a great extent, the life-span decay, also likely bring serious security incident, therefore must the strict gas penetration potential of controlling fuel cell membrane electrode assembly.
At present, the main electrochemical method that adopts of membrane electrode assembly gas penetration potential test, characterize its gas penetration potential by the test to the membrane electrode assembly hydrogenation electric current, namely in membrane electrode one side (contrast electrode), pass into hydrogen, opposite side (working electrode) passes into nitrogen,, at the enterprising line linearity electric potential scanning of working electrode, obtain the hydrogenation electric current curve.The gas penetration potential of the membrane electrode assembly that the method is can more accurate ground test area less, but when the membrane electrode assembly area is larger, not only the hydrogenation electric current value is larger, the electro-chemical test instrument is had relatively high expectations, simultaneously, the meetings such as internal gas distribution, catalyst surface state, humiture have the impact of highly significant on test result, cause test result to depart from actual value.
A kind of method for testing air permeability of fuel cell membrane electrode is disclosed in patent CN102297827A, membrane electrode assembly is contained in the experimental test pond, one side in experimental test pond is provided with the import and export passage of gas, and opposite side forms test channel, both sides in the experimental test pond pass into respectively tested gas and carrier gas, and the gas vent of its carrier gas side is passed in gas chromatography, test the content of tested gas in carrier gas by gas chromatography, thereby calculate the air penetrability of membrane electrode.In the method, the gas that sees through membrane electrode assembly is taken and enters out of gas chromatography by carrier gas, calculates the gas penetration potential of membrane electrode assembly by analyzing infiltration gas concentration.This method of testing is applicable to the membrane electrode assembly of different area, but need independent gas chromatography as analytical instrument, this method of testing and hydrogenation electric current method of testing all can't position the membrane electrode damage location simultaneously, and under many circumstances, the membrane electrode assembly gas penetration potential significantly rises often because local damage causes.
For existing problem in above-mentioned prior art, a kind of novel film electrode component of proton exchange film fuel battery ventilation property test device of research and design, be very necessary thereby overcome existing problem in prior art.
Summary of the invention
In view of existing problem in above-mentioned prior art, the purpose of this utility model is a kind of novel film electrode component of proton exchange film fuel battery ventilation property test device of research and design.By device of the present utility model and the special-purpose method of testing of this device, not only can measure the gas penetration potential numerical value of membrane electrode assembly, product quality is assessed and then controlled to the membrane electrode assembly gas penetration potential, accurately damaged position occurs in the orientation film electrode assemblie, helps analyzing film electrode assemblie failure cause.This method of testing does not need the expensive instruments such as electrochemical analytical instrument, gas chromatography, and is simple, accurately reliable.
Technical solution of the present utility model is achieved in that
Film electrode component of proton exchange film fuel battery ventilation property test device described in the utility model; It is characterized in that being comprised of upper fixture, O-ring seal, lower clamp and erection bolt, the order according to lower clamp, O-ring seal, membrane electrode assembly, O-ring seal and upper fixture fixedly installs by erection bolt from the bottom to top; Be processed with lower clamp intake interface and lower clamp exhaust port on lower clamp; Be processed with fixture exhaust port and upper fixture water inlet interface on upper fixture.
Upper fixture described in the utility model is slab construction, adopts transparent organic glass to make; Be processed with the o-ring groove of placing O-ring seal in upper fixture bottom, be processed with parallel groove on the upper fixture at o-ring groove middle part, the degree of depth of parallel groove is 3-5mm; Parallel groove is connected with upper fixture exhaust port and upper fixture water inlet interface.
Lower clamp described in the utility model is slab construction, adopts transparent organic glass to make; Be processed with the o-ring groove of placing O-ring seal on lower clamp top, be processed with parallel groove on the lower clamp at o-ring groove middle part, the degree of depth of parallel groove is 1-5mm; Parallel groove is connected with lower clamp intake interface and lower clamp exhaust port.
During the utility model test:
1, tested membrane electrode assembly is clipped between upper fixture and lower clamp, according to the order of upper fixture, O-ring seal, membrane electrode assembly, O-ring seal, lower clamp, assembles, and with the assembling screw rod, fix;
2, carry out water filling by upper fixture water inlet interface, and open the fixture exhaust port and be used for the injecting process exhaust, stop water filling and adopt stop valve, plug etc. that upper fixture water inlet interface is sealed all be full of water in the space that upper fixture and membrane electrode form after;
3, open the lower clamp exhaust port, pass into tested gas by the lower clamp intake interface, tested gas is generally hydrogen, nitrogen, air etc., be full of the space of lower clamp and membrane electrode assembly formation until tested gas after, close the lower clamp exhaust port, tested gaseous tension is 0.05～0.2MPa and keeps constant;
4, upper fixture exhaust port connection soap bubble flowmeter, suspended body flowmeter etc., test the gas flow that sees through membrane electrode assembly, thereby obtain the gas penetration potential numerical value of membrane electrode assembly;
5, upper fixture is transparent material, and is full of water in the space of upper fixture and membrane electrode assembly,, if membrane electrode assembly has breakage, there will be bubble also as seen in this position, but and then the damaged particular location of clear membrane electrode assemblie generation.
The utility model has the advantages that apparently, be mainly manifested in:
The utility model provides a kind of film electrode component of proton exchange film fuel battery ventilation property test device, not only can measure the gas penetration potential numerical value of membrane electrode assembly, product quality is assessed and then controlled to the membrane electrode assembly gas penetration potential, and accurately damaged position occurs in the orientation film electrode assemblie.Compare prior art, this method does not need the gas penetration potential numerical value that the expensive instruments such as electrochemical analytical instrument, gas chromatography just can the Accurate Measurement membrane electrode assembly, test fixture handling ease and cheap, but testing efficiency is high, can be used for more easily production quality control.In addition, damaged position can also occur by simultaneously accurate orientation film electrode assemblie in this device, helps analyzing film electrode assemblie failure cause.
The utlity model has the advantages such as novel structure, simple in structure, cheap, easy to use, test is accurate, its application in the fuel cell membrane electrode assembly production run is controlling diaphragm electrode product quality effectively, will produce positive social benefit and significant economic benefit.
Description of drawings
The utility model has 1 width accompanying drawing, wherein:
Accompanying drawing 1 the utility model structural representation.
In the drawings: 1, upper fixture 2, O-ring seal 3, membrane electrode assembly 4, parallel groove 5, o-ring groove 6, lower clamp 7, lower clamp intake interface 8, lower clamp exhaust port 9, upper fixture exhaust port 10, upper fixture water inlet interface 11, erection bolt.
Embodiment
Specific embodiment of the utility model as shown in drawings, its structure is comprised of upper fixture 1, O-ring seal 2, lower clamp 6 and erection bolt 11, and the order according to lower clamp 6, O-ring seal 2, membrane electrode assembly 3, O-ring seal 2 and upper fixture 1 fixedly installs by erection bolt 11 from the bottom to top; Be processed with lower clamp intake interface 7 and lower clamp exhaust port 8 on lower clamp 6; Be processed with fixture exhaust port 9 and upper fixture water inlet interface 10 on upper fixture 1.
Upper fixture 1 is slab construction, adopts transparent organic glass to make; Be processed with the o-ring groove 5 of placing O-ring seal 2 in upper fixture 1 bottom, be processed with parallel groove 4 on the upper fixture 1 at o-ring groove 5 middle parts, the degree of depth of parallel groove 4 is 4mm; Parallel groove 4 is connected with upper fixture exhaust port 9 and upper fixture water inlet interface 10.
Lower clamp 6 is slab construction, adopts transparent organic glass to make; Be processed with the o-ring groove 5 of placing O-ring seal 2 on lower clamp 6 tops, be processed with parallel groove 4 on the lower clamp 6 at o-ring groove 5 middle parts, the degree of depth of parallel groove 4 is 3mm; Parallel groove 4 is connected with lower clamp intake interface 7 and lower clamp exhaust port 8.
The above; it is only better embodiment of the present utility model; but protection domain of the present utility model is not limited to this; all are familiar with those skilled in the art in the disclosed technical scope of the utility model, within being equal to and replacing or change and all should be encompassed in protection domain of the present utility model according to the technical solution of the utility model and design of the present utility model thereof.
Claims (3)
1. film electrode component of proton exchange film fuel battery ventilation property test device; It is characterized in that being comprised of upper fixture (1), O-ring seal (2), lower clamp (6) and erection bolt (11), the order according to lower clamp (6), O-ring seal (2), membrane electrode assembly (3), O-ring seal (2) and upper fixture (1) fixedly installs by erection bolt (11) from the bottom to top; Be processed with lower clamp intake interface (7) and lower clamp exhaust port (8) on lower clamp (6); Be processed with fixture exhaust port (9) and upper fixture water inlet interface (10) on upper fixture (1).
2. film electrode component of proton exchange film fuel battery ventilation property test device according to claim 1, is characterized in that described upper fixture (1) is slab construction, adopts transparent organic glass to make; Be processed with the o-ring groove (5) of placing O-ring seal (2) in upper fixture (1) bottom, be processed with parallel groove (4) on the upper fixture (1) at o-ring groove (5) middle part, the degree of depth of parallel groove (4) is 3-5mm; Parallel groove (4) is connected with upper fixture exhaust port (9) and upper fixture water inlet interface (10).
3. film electrode component of proton exchange film fuel battery ventilation property test device according to claim 1, is characterized in that described lower clamp (6) is slab construction, adopts transparent organic glass to make; Be processed with the o-ring groove (5) of placing O-ring seal (2) on lower clamp (6) top, be processed with parallel groove (4) on the lower clamp (6) at o-ring groove (5) middle part, the degree of depth of parallel groove (4) is 1-5mm; Parallel groove (4) is connected with lower clamp intake interface (7) and lower clamp exhaust port (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202293243U CN203287295U (en) | 2013-04-28 | 2013-04-28 | Air permeability testing device for proton exchange membrane fuel cell membrane electrode assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202293243U CN203287295U (en) | 2013-04-28 | 2013-04-28 | Air permeability testing device for proton exchange membrane fuel cell membrane electrode assembly |
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| CN203287295U true CN203287295U (en) | 2013-11-13 |
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| CN2013202293243U Expired - Lifetime CN203287295U (en) | 2013-04-28 | 2013-04-28 | Air permeability testing device for proton exchange membrane fuel cell membrane electrode assembly |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281719A (en) * | 2017-12-29 | 2018-07-13 | 上海神力科技有限公司 | A kind of graphite bi-polar plate air-tightness detection device |
| CN111024990A (en) * | 2019-11-19 | 2020-04-17 | 一汽解放汽车有限公司 | Battery membrane electrode testing device |
| CN112763392A (en) * | 2020-12-30 | 2021-05-07 | 新源动力股份有限公司 | Method for accelerating evaluation of durability of proton exchange membrane for fuel cell |
-
2013
- 2013-04-28 CN CN2013202293243U patent/CN203287295U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281719A (en) * | 2017-12-29 | 2018-07-13 | 上海神力科技有限公司 | A kind of graphite bi-polar plate air-tightness detection device |
| CN111024990A (en) * | 2019-11-19 | 2020-04-17 | 一汽解放汽车有限公司 | Battery membrane electrode testing device |
| CN111024990B (en) * | 2019-11-19 | 2022-05-17 | 一汽解放汽车有限公司 | Battery membrane electrode testing device |
| CN112763392A (en) * | 2020-12-30 | 2021-05-07 | 新源动力股份有限公司 | Method for accelerating evaluation of durability of proton exchange membrane for fuel cell |
| CN112763392B (en) * | 2020-12-30 | 2024-06-11 | 新源动力股份有限公司 | Method for accelerating evaluation of durability of proton exchange membrane for fuel cell |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
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| CX01 | Expiry of patent term |