CN101135599A - Fuel battery membrane electrode leak detector - Google Patents
Fuel battery membrane electrode leak detector Download PDFInfo
- Publication number
- CN101135599A CN101135599A CNA2007102019731A CN200710201973A CN101135599A CN 101135599 A CN101135599 A CN 101135599A CN A2007102019731 A CNA2007102019731 A CN A2007102019731A CN 200710201973 A CN200710201973 A CN 200710201973A CN 101135599 A CN101135599 A CN 101135599A
- Authority
- CN
- China
- Prior art keywords
- out console
- membrane electrode
- check
- leak detector
- fuel battery
- Prior art date
- 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
Images
Landscapes
- Fuel Cell (AREA)
Abstract
The invention comprises a machine frame, an upper detection board and a lower detection board. It features the following: the upper detection board is connected to the elastic unit through insulation material; said elastic unit is mounted on the baffle plate in the machine frame; the lower detection board whose undersurface is attached with insulation material is located on the base; there is a voltage measuring device located between the upper detection board and lower detection board.
Description
Technical field
The present invention relates to a kind of checkout equipment, relate to a kind of leak locator of fuel cell membrane electrode specifically.
Background technology
Along with the day of fossil energy is becoming tight and the becoming more and more important of environmental protection, cleaning, efficiently is that (Fuel Cell, FC) technology becomes the emerging energy of following sustainable development, and is subjected to the attention of countries in the world government day by day for the fuel cell of fuel with hydrogen.
The core component of fuel cell is membrane electrode (Membrane Electrode Assembly, be called for short MEA), membrane electrode can be made up of by conductive porous property diffusion material (as carbon paper) with two that are clipped in the film two sides a PEM, is evenly distributed with the catalyzer (as metal platinum) of the caused electrochemical reaction of tiny dispersion on two boundary surfaces that PEM contacts with conductive material.Draw by external circuit with the electronics that conductive body will take place to produce in the electrochemical reaction process on the membrane electrode both sides, has just constituted current return.
Anode tap at membrane electrode, fuel can pass poriness diffusion material (as carbon paper) by infiltration, and in catalyst surface generation electrochemical reaction, loses electronics and form proton, proton can pass PEM by migration, and the other end that arrives membrane electrode is a cathode terminal.Cathode terminal at membrane electrode, the gas (as air) that contains oxygenant (as oxygen), pass poriness diffusion material (as carbon paper) by infiltration, and in catalyst surface generation electrochemical reaction, obtain electronics and form negative ion, this negative ion further combines with the proton of coming from the anode tap migration, forms reaction product.
Be fuel with hydrogen, be in the Proton Exchange Membrane Fuel Cells of oxygenant (or be oxygenant with the pure oxygen) with the air that contains oxygen, fuel hydrogen loses the catalytic electrochemical reaction of electronics in the anodic site, form hydrogen positive ion (proton), its electro-chemical reaction equations is:
H
2＝2H
＇+2e
Oxygen obtains the catalytic electrochemical reaction of electronics in the cathodic area, form negative ion, and this negative ion further combines with the hydrogen positive ion of coming from the anode tap migration, forms reaction product water.Its electro-chemical reaction equations is:
2H
++1/2O
2+2e
-＝H
2O
PEM in the fuel cell is except the proton that is used for taking place electrochemical reaction and migration exchange reaction and produces, its effect comprises that also air-flow that will contain fuel hydrogen and the air-flow that contains oxygenant (oxygen) separate, and they can not mixed mutually and produces the explosion type reaction.
In typical Proton Exchange Membrane Fuel Cells, membrane electrode generally is placed between the pole plate of two conductions, all offers diversion trench on the two-plate, therefore is called guide plate again.On the surface that diversion trench is opened in membrane electrode contacts, mill formation at quarter by die casting, punching press or machinery, its quantity is at one or more.Guide plate can be made by metal material, also can be made by graphite material.The effect of the diversion trench on the guide plate is anodic site or the cathodic area that fuel or oxygenant is imported the membrane electrode both sides respectively.In the structure of a Proton Exchange Membrane Fuel Cells monocell, only there are a membrane electrode and two guide plates, two guide plate branches are located at the membrane electrode both sides, a guide plate as anode fuel, another is as the guide plate of cathode oxidant.These two guide plates also are the mechanical support on membrane electrode both sides both as current collector plate.Diversion trench on the guide plate is the passage that fuel or oxygenant enter the male or female surface, also is the exhalant canal that the water that generates in the battery operation process is taken away.
In order to increase the power of Proton Exchange Membrane Fuel Cells, the composition electric battery that usually mode of two or more monocells by straight folded mode or tiling connected together, or be called battery pile.This electric battery tightens together by front end-plate, end plate and pull bar usually and becomes one.In electric battery, the pole plate two sides between two PEMs all is provided with diversion trench, is called bipolar plates.The wherein one side of bipolar plates is as the anode guide face of a membrane electrode, and another side is then as the cathode diversion face of another adjacent membranes electrode.
The used in proton exchange membrane fuel cell way extensively can be used as the power system of delivery vehicles such as car, ship, can be made into portable, portable or fixed Blast Furnace Top Gas Recovery Turbine Unit (TRT) again.
Three-in-one membrane electrode is the core component of fuel cell, the quality of its quality is the key of the whole fuel battery performance of decision, the proton that membrane electrode produces in transportable exchange reaction, can not allow the fuel hydrogen and the air of membrane electrode both sides intersect, in order to avoid they mix mutually and blast.That is to say that membrane electrode definitely can not leak gas.Whether the detection membrane electrode leaks gas is that membrane electrode is carried out the important ring that quality is checked on.In production reality, the quality testing that must all whether leak gas to each membrane electrode, and be rigid in checking up.
Vacuum leak detector is used in the leak detection of membrane electrode at present more.Publication number be CN1789944A patent disclosure a kind of vacuum leak detector of fuel cell membrane electrode, it comprises frame, mobile intermediate plate, cylinder, the fixed test plate, the motion detection plate, vacuum meter and stopcock, during detection membrane electrode is fixed in the motion detection plate with the corresponding O RunddichtringO of the peripheral nonactive sealing area shape of membrane electrode on, make membrane electrode on the motion detection plate just in time be positioned at the corresponding O RunddichtringO of the peripheral nonactive sealing area shape of membrane electrode below on the fixed test plate by detent mechanism, to move on the motion detection plate then, corresponding the coincideing of the O-ring seal of check-out console is clipped in the middle membrane electrode up and down, take out the air of striping electrode between the fixed test plate then, and make vacuum tightness reach 1 mm Hg, again stopcock cuts out, whether change by the pressure of observing on the vacuum meter, judge whether membrane electrode leaks gas.Owing to the excessive breakage that causes membrane electrode easily of vacuum tightness, upper-lower seal circle butt joint degree of agreement had deviation will cause flase drop slightly, in order accurately to dock the loaded down with trivial details problem of complicated operating process of coincideing when there was detection in this membrane electrode vacuum leak detector.Therefore, need a kind of dependable performance, simple to operate, the device that can guarantee that membrane electrode is not damaged and can hunt leak to membrane electrode exactly, with quality and the production efficiency of guaranteeing membrane electrode.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of dependable performance, simple to operate, the device that can guarantee that membrane electrode is not damaged and can hunt leak to membrane electrode exactly.
For solving the problems of the technologies described above, the present inventor has carried out a large amount of research and performing creative labour on the basis of existing technology, developed a kind of fuel battery membrane electrode leak detector, comprise frame, go up check-out console and following check-out console, the described check-out console of going up is connected with elastic device by insulating material; Described elastic device is located on the dividing plate of frame inside; Lower surface is connected with the following check-out console of insulating material and is located on the pedestal; Check-out console cooperatively interacts up and down; Be provided with the instrument of measuring voltage between last check-out console and the following check-out console.
Described elastic device comprises electromagnet and the T sections core that is fixed on the dividing plate, is provided with one section spring between the cross bar of described T sections core upper end and the electromagnet top, and the through hole in the middle of the electromagnet is passed in the lower end of T sections core.Check-out console moves downward can to make T sections core drive upward after the gauge tap closure of electromagnet, and check-out console just is pressed on down on the check-out console.
The described check-out console of going up links to each other with the both positive and negative polarity of constant-current supply respectively with following check-out console, is provided with power switch control entire circuit in the circuit.
Electric current＜the 1.5mA of described constant-current supply, the voltage＜1.5V at membrane electrode two ends.
The described check-out console of going up is to be made by common conductive material with following check-out console.
Described insulating material is a kind of in teflon, rubber, phenolics, pottery, the glass.
Described going up between check-out console and the elastic device also is provided with universal shaft.
Described bottom surface is connected with between the following check-out console of insulating material and the pedestal and is provided with the pedestal spring.
Described pedestal spring outside is covered with the housing that upper surface is provided with perforate, and the radius of described perforate is less than the radius of following check-out console, and the height of housing is lower than the height of the following check-out console of state of nature.
Fuel battery membrane electrode leak detector provided by the invention, it utilizes electrical principles to come membrane electrode is hunted leak.Undamaged membrane electrode is equivalent to the charging process of capacitor when switching on, the voltage at its two ends should constantly increase; Be equivalent to resistance when damaged membrane electrode energising is arranged, the voltage at its two ends remains unchanged, and can judge accurately thus whether fuel cell membrane electrode is damaged.And membrane electrode leak detector membrane electrode of the present invention both sides do not have pressure reduction, can not cause the breakage of membrane electrode, and dependable performance is simple to operate.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is the cut-open view of main working parts of the present invention.
Fig. 2 is the cut-open view of another embodiment of the present invention.
Fig. 3 is the cut-open view of another preferred implementation of the present invention.
Fig. 4 is a schematic perspective view of the present invention.
Fig. 5 is a circuit diagram of the present invention
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the present invention includes frame 1, go up check-out console 2 and following check-out console 3, the described check-out console 2 of going up is connected with elastic device by insulating material 8; Described elastic device is located on the dividing plate 17 of frame inside; Lower surface is connected with the following check-out console 3 of insulating material 8 and is located on the pedestal 13; Check-out console cooperatively interacts up and down; Be provided with the instrument 9 of measuring voltage between last check-out console 2 and the following check-out console 3.The described check-out console 2 of going up is to be made by common conductive material with following check-out console 3.Described insulating material 8 is a kind of in teflon, rubber, phenolics, pottery, the glass.Described elastic device comprises electromagnet 4 and the T sections core 5 that is fixed on the dividing plate 17, is provided with one section spring 7 between the cross bar 6 of described T sections core 5 upper ends and electromagnet 4 tops, and the through hole in the middle of the electromagnet is passed in the lower end of T sections core 5.Check-out console 2 moves downward can to make T sections core 5 drive upward after gauge tap 14 closures of electromagnet, and check-out console 2 just is being pressed on down on the check-out console 3; After the gauge tap 14 of electromagnet disconnected, under the rebound effect of spring 7, last check-out console 2 moved upward, and check-out console separately up and down.Last check-out console 2 links to each other with the both positive and negative polarity of constant-current supply 16 respectively with following check-out console 3, the electric current＜1.5mA of the described constant-current supply of this constant-current supply 16, and the voltage＜1.5V at membrane electrode two ends prevents because the excessive membrane electrode that causes of voltage is impaired.Be provided with power switch 15 control entire circuit in the circuit.Be provided with the instrument 9 measurements voltage therebetween of measuring voltage between last check-out console 2 and the following check-out console 3.
By Fig. 2, shown in Figure 3, also be provided with universal shaft 10 between last check-out console 2 and the elastic device.When last check-out console 2 moved downward on the following check-out console 3 that malleation is being placed with membrane electrode, universal shaft 10 connected that check-out console 2 and contacting of following check-out console 3 are pushed is more even tight.
The following check-out console 3 that is connected with insulating material 8 by lower end shown in Figure 2 is placed on the pedestal spring 11; when last check-out console 2 moves downward on the following check-out console 3 that malleation is being placed with membrane electrode; following check-out console 3 also moves downward thereupon and compresses pedestal spring 11; produce buffer action, can not be subjected to the infringement of the impact between the check-out console up and down by the diaphragm electrode.
By shown in Figure 3; pedestal spring 11 outsides are covered with the housing 12 that upper surface is provided with perforate; the radius of described perforate is less than the radius of following check-out console 3; the height of housing 12 is lower than the height of the following check-out console 3 of state of nature; when last check-out console moves downward on the following check-out console that malleation is being placed with membrane electrode; following check-out console is done one section upper surface tapping that is stuck in housing after moving downward thereupon; can under the buffering of pedestal spring 11, be without prejudice by the diaphragm electrode like this; check-out console closely contacts about making again, makes measurement result more accurate.
The course of work of fuel battery membrane electrode leak detector of the present invention and principle of work can be described as follows in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5:
At first fuel cell membrane electrode A is positioned over down on the check-out console 3, open the gauge tap 14 of electromagnet 4 then, T sections core 5 drives upward, and check-out console 2 moves downward, just be pressed on down on the check-out console 3, after treating system stability, open the power switch 15 in the check-out console circuit up and down, give check-out console two ends up and down in addition given voltage.Because PEM is an insulator, if the PEM among the membrane electrode A is intact, then can be regarded as capacitor between the check-out console up and down, can be regarded as the charging process of capacitor behind the power-on switch 15, in 15～30 seconds time, the registration of the instrument 9 of measuring voltage should constantly increase; If the PEM breakage among the membrane electrode A, but two conductive materials (as carbon paper) that then are clipped in the film two sides just can contact with each other, at this moment, the membrane electrode A of check-out console and its clamping can regard conventional, electric-resistance as up and down, behind the power-on switch 15, in 15～30 seconds time, the registration of the instrument 9 of measuring voltage should keep a numerical value constant substantially.Power switch 15 about closing then in the check-out console circuit.Can change according to the registration of the instrument 9 of measuring voltage thus and accurately judge whether breakage of membrane electrode.
After detection finishes, the gauge tap 14 of electromagnet 4 is closed, spring 7 is upspring, and drives T sections core and last check-out console and moves upward, and check-out console separates up and down, takes off membrane electrode A, finishes the detection of a membrane electrode.
Claims (8)
1. a fuel battery membrane electrode leak detector comprises frame (1), goes up check-out console (2) and following check-out console (3), it is characterized in that the described check-out console (2) of going up is connected with elastic device by insulating material (8); Described elastic device is located on the dividing plate (17) of frame inside; Lower surface is connected with the following check-out console (3) of insulating material (8) and is located on the pedestal (13); Be provided with the instrument (9) of measuring voltage between last check-out console (2) and the following check-out console (3).
2. fuel battery membrane electrode leak detector according to claim 1, it is characterized in that described elastic device comprises electromagnet (4) and the T sections core that is fixed on the dividing plate (17), be provided with one section spring (7) between the cross bar (6) of described T sections core (5) upper end and electromagnet (4) top, the through hole in the middle of the electromagnet (4) is passed in the lower end of T sections core (5).
3. fuel battery membrane electrode leak detector according to claim 1 is characterized in that the described check-out console (2) of going up links to each other with the both positive and negative polarity of constant-current supply (16) respectively with following check-out console (3).
4. fuel battery membrane electrode leak detector according to claim 3 is characterized in that the electric current＜1.5mA of described constant-current supply (16).
5. fuel battery membrane electrode leak detector according to claim 1 is characterized in that a kind of in the teflon, rubber, phenolics, pottery, glass of described insulating material (8).
6. fuel battery membrane electrode leak detector according to claim 1 is characterized in that described going up between check-out console (2) and the elastic device also is provided with universal shaft (10).
7. fuel battery membrane electrode leak detector according to claim 1 is characterized in that described bottom surface is connected with between the following check-out console (3) of insulating material (8) and the pedestal (13) to be provided with pedestal spring (11).
8. fuel battery membrane electrode leak detector according to claim 7, it is characterized in that described pedestal spring (11) outside is covered with the housing (12) that upper surface is provided with perforate, the radius of described perforate is less than the radius of following check-out console (3), and the height of housing (12) is lower than the height of the following check-out console of state of nature (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102019731A CN101135599A (en) | 2007-10-09 | 2007-10-09 | Fuel battery membrane electrode leak detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007102019731A CN101135599A (en) | 2007-10-09 | 2007-10-09 | Fuel battery membrane electrode leak detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101135599A true CN101135599A (en) | 2008-03-05 |
Family
ID=39159806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007102019731A Pending CN101135599A (en) | 2007-10-09 | 2007-10-09 | Fuel battery membrane electrode leak detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101135599A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799508A (en) * | 2010-03-09 | 2010-08-11 | 上海松下等离子显示器有限公司 | Wire break detection method of electrode |
| CN102095446A (en) * | 2010-11-19 | 2011-06-15 | 清华大学 | Flat plate type solid oxide electrolytic cell pile test system |
| CN101571472B (en) * | 2008-04-29 | 2012-07-11 | 汉能科技有限公司 | A gas permeability test fixture, tester and test system |
| CN108390084A (en) * | 2018-02-06 | 2018-08-10 | 广东国鸿氢能科技有限公司 | A kind of fuel cell pile insulating properties detection method |
| CN108957046A (en) * | 2018-08-24 | 2018-12-07 | 先进储能材料国家工程研究中心有限责任公司 | Fuel cell membrane electrode test fixture |
| CN109813507A (en) * | 2019-01-30 | 2019-05-28 | 无锡格林司通自动化设备有限公司 | A kind of flexible-packed battery leak test method and mechanism |
| CN110988697A (en) * | 2019-12-13 | 2020-04-10 | 速博达(深圳)自动化有限公司 | Membrane electrode testing device and method |
| CN111307383A (en) * | 2018-12-12 | 2020-06-19 | 中国科学院大连化学物理研究所 | Device for detecting sealing performance and open-circuit voltage of fuel cell membrane electrode |
| CN115172821A (en) * | 2022-06-27 | 2022-10-11 | 东风汽车集团股份有限公司 | Method and device for judging membrane electrode perforation fault |
-
2007
- 2007-10-09 CN CNA2007102019731A patent/CN101135599A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571472B (en) * | 2008-04-29 | 2012-07-11 | 汉能科技有限公司 | A gas permeability test fixture, tester and test system |
| CN101799508A (en) * | 2010-03-09 | 2010-08-11 | 上海松下等离子显示器有限公司 | Wire break detection method of electrode |
| CN102095446A (en) * | 2010-11-19 | 2011-06-15 | 清华大学 | Flat plate type solid oxide electrolytic cell pile test system |
| CN102095446B (en) * | 2010-11-19 | 2012-12-05 | 清华大学 | Flat plate type solid oxide electrolytic cell pile test system |
| CN108390084A (en) * | 2018-02-06 | 2018-08-10 | 广东国鸿氢能科技有限公司 | A kind of fuel cell pile insulating properties detection method |
| CN108390084B (en) * | 2018-02-06 | 2020-07-14 | 广东国鸿氢能科技有限公司 | Method for detecting insulativity of fuel cell stack |
| CN108957046A (en) * | 2018-08-24 | 2018-12-07 | 先进储能材料国家工程研究中心有限责任公司 | Fuel cell membrane electrode test fixture |
| CN111307383A (en) * | 2018-12-12 | 2020-06-19 | 中国科学院大连化学物理研究所 | Device for detecting sealing performance and open-circuit voltage of fuel cell membrane electrode |
| CN109813507A (en) * | 2019-01-30 | 2019-05-28 | 无锡格林司通自动化设备有限公司 | A kind of flexible-packed battery leak test method and mechanism |
| CN110988697A (en) * | 2019-12-13 | 2020-04-10 | 速博达(深圳)自动化有限公司 | Membrane electrode testing device and method |
| CN115172821A (en) * | 2022-06-27 | 2022-10-11 | 东风汽车集团股份有限公司 | Method and device for judging membrane electrode perforation fault |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101135599A (en) | Fuel battery membrane electrode leak detector | |
| TWI427308B (en) | Testing device for solid oxide fuel cell | |
| CN101087029B (en) | Polymer electroyte membrane, membrane electrode assembly and fuel cell using the assembly | |
| Zhao et al. | Validation of H+/O2− conduction in doped ceria–carbonate composite material using an electrochemical pumping method | |
| US20190036137A1 (en) | Health monitoring of an electrochemical cell stack | |
| Petitjean et al. | Performance and durability of high temperature steam electrolysis: from the single cell to short-stack scale | |
| CN105789664B (en) | Three electrode solid electrolyte electrochemical reactors | |
| EP1487044A3 (en) | Method for detecting possible structural deficiencies of a polymer electrolyte fuel cell | |
| US11549858B2 (en) | Apparatus for testing airtightness of separator for fuel cell | |
| CN100504331C (en) | Vacuum Leak Detection Device for Fuel Cell Membrane Electrode | |
| KR101380038B1 (en) | Gasket being capable of measuring voltage and fuel cell system having the same | |
| CN201218769Y (en) | Fuel battery membrane electrode leak detector | |
| CN201122121Y (en) | Fuel battery membrane electrode leak detector | |
| KR100954526B1 (en) | Gasket test equipment and method for fuel cell | |
| CA2455063A1 (en) | Method and apparatus for locating internal transfer leaks within fuel cell stacks | |
| Rahim et al. | Simulation analysis of the effect of temperature on overpotentials in PEM electrolyzer system | |
| CN101498613A (en) | Leakage detection apparatus for fuel cell membrane electrode | |
| KR20180023358A (en) | Jig for solid oxide fuel cells | |
| JP2005276729A (en) | Performance test method of solid polymer fuel cell | |
| KR101294182B1 (en) | Apparatus and method for testing electrolyte membrane in fuel cell | |
| CN217542298U (en) | Air tightness test equipment for fuel cell polar plate and membrane electrode | |
| CN100516803C (en) | A vacuum leak detection device for fuel cell guide plate | |
| CN211784120U (en) | Quick leak hunting device for fuel cell stack | |
| CN110672275A (en) | Device and method for detecting welding leakage of bipolar plate, membrane electrode leakage and leakage outside galvanic pile | |
| CN205406638U (en) | Three electrode solid electrolyte electrochemical reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080305 |