CN209043546U - A kind of fuel battery double plates water cavity device for detecting sealability - Google Patents
A kind of fuel battery double plates water cavity device for detecting sealability Download PDFInfo
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- CN209043546U CN209043546U CN201821966383.8U CN201821966383U CN209043546U CN 209043546 U CN209043546 U CN 209043546U CN 201821966383 U CN201821966383 U CN 201821966383U CN 209043546 U CN209043546 U CN 209043546U
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Abstract
The utility model discloses a kind of fuel battery double plates water cavity device for detecting sealability, including gas source, pressure maintaining valve, pressure gauge, anode cavities valve, cathode cavity valve, press rotating handle, press upper mold, water cavity valve, test upper head plate, the first membrane electrode, tested plates, the second membrane electrode, voltmeter, test bottom plate and press lower die；Anode cavities valve, cathode cavity valve and water cavity valve are closed when being detected, the valve of pressure maintaining valve is opened, adjusting pressure limit is 0.05~0.2MPa, after the registration of voltmeter is stablized, the registration for observing voltmeter thinks that there is leakages if absolute value of voltage is higher than 0.1V.The utility model indicates that high sensitivity, detection speed are fast, and signal is easy to acquire, and realize automatic operation using voltage signal as the judgement of air-tightness quality, is conducive to improve production detection efficiency.
Description
Technical field
The utility model relates to field of fuel cell technology, specially a kind of fuel battery double plates water cavity sealing propertytest
Device.
Background technique
Fuel cell is a kind of power generator that fuel is converted into electric energy with the chemical energy in oxidant, is a kind of
Clean energy conversion mode, wherein Proton Exchange Membrane Fuel Cells is used as fuel using hydrogen, have energy conversion efficiency height,
The advantages such as low operation temperature, the fast, cleanliness without any pollution of starting speed, all have wide in fields such as communications and transportation, distributed power generations
Application prospect, Proton Exchange Membrane Fuel Cells technology is considered as the 21 century preferred efficient generation technology of cleaning.
For Experimental research on proton exchange membrane fuel cells for vehicles, needed since the heat radiation power of fuel cell is higher coolant into
Row heat dissipation, therefore be also required to ensure that coolant chamber and hydrogen chamber, air chamber are mutually isolated, if any two chamber in three chambers
It is mixed, then may cause the mixing of the reduction of the efficiency of fuel cell, especially hydrogen or oxygen gas, in some instances it may even be possible to cause battery
Failure or explosion, this characteristic proposes very high requirement to the sealing technique of Proton Exchange Membrane Fuel Cells, wherein for
The measuring technology of bipolar plates leakproofness is particularly important.Bipolar plates are the key components of Proton Exchange Membrane Fuel Cells, are primarily served
Afflux, conduction separate the effects of oxidant and fuel, distribution fluid, and existing high-power vehicle fuel battery bipolar plates are usual
It is made of plate and cathode plate, the two is bonded bipolar plates by modes such as welding, gluings, and in-between cavity is logical
The problem of being often coolant chamber, being unevenly distributed there is rosin joint or adhesive due to the modes such as welding and gluing, bipolar plates
Water cavity can generate leakage to hydrogen chamber or cavity, therefore it is most important to the detection technique of bipolar plates water cavity leakage rate.
In order to measure the leakproofness of bipolar plates water cavity, current method mainly includes bubble method, pressure decline method and discharge method, such as
Test fixture is put into pond in Chinese patent CN203178047 and is passed through gas, is judged by observing the generation of bubble double
The air-tightness of pole plate.And injecting glue formwork seal bipolar plates are used in Chinese patent CN205843899, it to be formed by seeing whether
Bubble judges the sealing performances of bipolar plates.Air-tightness can intuitively be observed using bubble method, and leak source can be searched.But
This method is unfavorable for mass production, and sometimes for sample is submerged in water, needs to post-process.Discharge method is tested,
Chinese patent CN103900773 uses the air-tightness of soap film flowmeter on-line testing pile.And Chinese patent CN205879471
Gas is passed through to each chamber of bipolar plates, the air-tightness of soap film flowmeter test bipolar plates is replaced using electronic flowmeter.More than
Technology can be with quantitative test leakage rate, but since the water cavity leakage rate of bipolar plates is smaller, the leakage of usual monolithic bipolar plate
Amount proposes higher accuracy requirement well below 0.1m l/mi n, therefore for flowmeter, while using testing flow meter
When, the testing time is longer, and production efficiency is lower.
Utility model content
The purpose of this utility model is to provide a kind of fuel battery double plates water cavity device for detecting sealability.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of fuel battery double plates water cavity device for detecting sealability, including gas source, pressure maintaining valve, pressure gauge, anode cavities valve
Door, cathode cavity valve, press rotating handle, press upper mold, water cavity valve, test upper head plate, the first membrane electrode, tested plates,
Second membrane electrode, voltmeter, test bottom plate and press lower die；
First anode chamber stomata, the first cathode cavity stomata, the first water cavity stomata and voltage are provided in the tested plates
Calibrating terminal, is respectively arranged with the first membrane electrode and the second membrane electrode on the opposite two sides of the tested plates, tested plates with
What the first membrane electrode was connected is provided with anode gas flow field on one side, is provided in the one side that tested plates are connected with the second membrane electrode
Cathode gas flow fields are provided with gas flowfield on the two sides that tested plates are connected with the first membrane electrode and the second membrane electrode,
Water cavity flow field is provided in tested plates, between tested plates and the first membrane electrode and between tested plates and the second membrane electrode
Sealed by tree lace；
First membrane electrode it is opposite with tested plates be provided with test upper head plate on one side；
Second membrane electrode it is opposite with tested plates be provided with test bottom plate on one side；
Second plate chamber stomata, the second cathode cavity stomata, the second water cavity stomata and electricity are provided on the test upper head plate
Calibrating terminal is pressed, second plate chamber stomata is connected with anode cavities valve, and the second cathode cavity stomata connects cathode cavity valve, the second water
Chamber stomata is connected with water cavity valve；
The test upper head plate is provided with gas flowfield towards the first membrane electrode on one side, tests upper head plate and the first film electricity
It is sealed between pole by tree lace；The test bottom plate is provided with gas flowfield towards the second membrane electrode on one side, tests lower end
It is sealed between plate and the second membrane electrode by tree lace；
Third water cavity stomata, the first water cavity stomata, the second water cavity stomata, third water are set on the test bottom plate
Chamber stomata is mutually connected with the water cavity flow field in tested plates, the first anode chamber stomata, second plate chamber stomata and anode
Gas flowfield is interconnected, and the first cathode cavity stomata, the second cathode cavity stomata and cathode gas flow fields are interconnected；
The test bottom plate, the second membrane electrode, tested plates, the first membrane electrode and test upper head plate are arranged successively assembling
Afterwards, it is placed between press upper mold and press lower die, is compressed by press rotating handle, press upper mold is set to test upper end
The plate one side opposite with the first membrane electrode, press lower die, which is placed in, tests the bottom plate one side opposite with the second membrane electrode, on press
Clamping pressure between mould and press lower die is 1MPa~2MPa；
The voltage tester terminal of voltmeter connection tested plates and the voltage tester terminal of test upper head plate and by
The voltage tester terminal of pole plate and the voltage tester terminal of test bottom plate are surveyed, the range of voltmeter is -5~5V, and precision is
1mV；
The gas source output gas is hydrogen, the air inlet of the gas source connection pressure maintaining valve, the gas outlet connection of pressure maintaining valve
The third water cavity stomata tested on bottom plate is connected.
A kind of fuel battery double plates water cavity method for conducting leak test, includes the following steps:
When being detected to the water cavity leakproofness of monolithic tested plates, tests between upper head plate and test bottom plate and be tested pole
The arrangement mode of plate and membrane electrode are as follows: the first membrane electrode, tested plates, the second membrane electrode, voltmeter connecting test upper head plate with
Tested plates, tested plates and test bottom plate；
When being detected to the water cavity leakproofness of n piece tested plates, tests between upper head plate and test bottom plate and be tested pole
The arrangement mode of plate and membrane electrode are as follows: n piece tested plates are alternatively arranged with n+1 piece membrane electrode, i.e., will test upper head plate, first
Membrane electrode, first tested plates, second membrane electrode, second tested plates ..., n-th tested plates, (n+1)th
Membrane electrode, test bottom plate are arranged successively from top to bottom, wherein voltmeter connecting test upper head plate and first tested plates, the
A piece of tested plates and second tested plates ..., n-th tested plates and test bottom plate, i.e., voltmeter is detectable surveys
Try bottom plate and first tested plates, first tested plates and second tested plates ..., n-th tested plates and
Test the voltage between upper head plate；
The anode cavities valve, cathode cavity valve and water cavity valve are closed, the valve of pressure maintaining valve is opened, adjusts pressure limit
The registration of voltmeter is observed after the registration of voltmeter is stablized for 0.05~0.2MPa, is recognized if absolute value of voltage is higher than 0.1V
For there is leakages.
As the further scheme of the utility model, the material of the test upper head plate and the test bottom plate is gold
Category or graphite, test upper head plate and the thickness for testing bottom plate are 1~10mm.
As the further scheme of the utility model, the purity for the hydrogen that the gas source 1 exports is 99.9~99.999%,
The output pressure of gas source is 0.2~40MPa.
As the further scheme of the utility model, the pressure gauge is arranged in pressure maintaining valve and tests the pipe between bottom plate
On the road, wherein pressure gauge is mechanical precision pressure gauge or electronic pressure gage, and the precision of pressure gauge is 0.002MPa.
As the further scheme of the utility model, the tree lace is that gasket-like is filled in tree lace slot into the tree lace
Slot is the groove that depth is 0.1~0.5mm, and tree lace slot is provided on two workpiece by tree lace sealing.
The utility model has the beneficial effects that
1, the utility model is indicated using voltage signal as the judgement of air-tightness quality, and high sensitivity, detection speed are fast,
And signal is easy to acquire；
2, the utility model is easy to after valve is used computer control using solenoid valve, press without excessive manual operations
Realize automatic operation；
3, the utility model can carry out the test of multi-disc pole plate simultaneously, be conducive to improve production detection efficiency.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram that the utility model detects multi-disc fuel battery double plates water cavity leakproofness.
Specific embodiment
The technical scheme in the utility model embodiment is clearly and completely described below, it is clear that described reality
Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention,
All other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this reality
With novel protected range.
A kind of fuel battery double plates water cavity device for detecting sealability, as shown in Figure 1, including gas source 1, pressure maintaining valve 2, pressure
Table 3, anode cavities valve 4, cathode cavity valve 5, press rotating handle 6, press upper mold 7, water cavity valve 8, test upper head plate 9, the
One membrane electrode 10, tested plates 11, the second membrane electrode 15, voltmeter 12, test bottom plate 13 and press lower die 14；
First anode chamber stomata, the first cathode cavity stomata, the first water cavity stomata and electricity are provided in the tested plates 11
Calibrating terminal is pressed, the tested plates 11 are respectively arranged with the first membrane electrode 10 and the second membrane electrode 15, quilt on opposite two sides
What survey pole plate 11 was connected with the first membrane electrode 10 is provided with anode gas flow field, tested plates 11 and 15 phase of the second membrane electrode on one side
Cathode gas flow fields are provided in one side even, water cavity flow field, tested plates 11 and the first film electricity are provided in tested plates 11
It is sealed by tree lace between pole 10 and between tested plates 11 and the second membrane electrode 15；
Upper head plate 9 is tested in be on one side provided with opposite with tested plates 11 of first membrane electrode 10；
Bottom plate 13 is tested in be on one side provided with opposite with tested plates 11 of second membrane electrode 15；
Second plate chamber stomata, the second cathode cavity stomata, the second water cavity stomata and electricity are provided on the test upper head plate 9
Calibrating terminal is pressed, second plate chamber stomata is connected with anode cavities valve 4, and the second cathode cavity stomata connects cathode cavity valve 5, and second
Water cavity stomata is connected with water cavity valve 8, and the test upper head plate 9 and the material for testing bottom plate 13 are metal or graphite, test
For upper head plate with test bottom plate with a thickness of 1~10mm, the anode cavities valve 4, cathode cavity valve 5 and water cavity valve 8 are machine
Tool ball valve or solenoid valve；
The test upper head plate 9 is provided with gas flowfield towards the first membrane electrode 10 on one side, tests upper head plate 9 and first
It is sealed between membrane electrode 10 by tree lace；The test bottom plate 13 is provided with gas stream towards the second membrane electrode 15 on one side
, it tests between bottom plate 13 and the second membrane electrode 15 and is sealed by tree lace, the tree lace is to fill gasket-like in tree lace slot
At the tree lace slot is the groove that depth is 0.1~0.5mm, and tree lace slot is provided on two workpiece by tree lace sealing；
Third water cavity stomata, the first water cavity stomata, the second water cavity stomata, third are set on the test bottom plate 13
Water cavity stomata is mutually connected with the water cavity flow field in tested plates 11, the first anode chamber stomata, second plate chamber stomata with
Anode gas flow field is interconnected, and the first cathode cavity stomata, the second cathode cavity stomata and cathode gas flow fields are interconnected.
The test bottom plate 13, the second membrane electrode 15, tested plates 11, the first membrane electrode 10 and test upper head plate 9 according to
After secondary arrangement assembling, it is placed between press upper mold 7 and press lower die 14, is compressed by press rotating handle 6, press upper mold
7 are set to test upper head plate 9 one side opposite with the first membrane electrode 10, and press lower die 14 is placed in test bottom plate 13 and the second film
The opposite one side of electrode, wherein press rotating handle 6 is manual machinery handle or hydraulic device, press upper mold 7 and press lower die
Clamping pressure between 14 is 1MPa~2MPa.
The voltmeter 12 connect tested plates 11 voltage tester terminal and test upper head plate 9 voltage tester terminal with
And the voltage tester terminal of tested plates 11 and test bottom plate 13 voltage tester terminal, the voltmeter 12 be multimeter or
The voltage check device of multichannel is responsible for detection test bottom plate 13 and tested plates 11 and tested plates 11 and test upper end
Voltage between plate 9, the range of voltmeter 12 are -5~5V, precision 1mV；
1 output gas of gas source is high-purity hydrogen, and the purity of hydrogen is 99.9~99.999%, the output pressure of gas source 1
Power is 0.2~40MPa, the air inlet of the connection of gas source 1 pressure maintaining valve 2, on the gas outlet connecting test bottom plate 13 of pressure maintaining valve 2
Third water cavity stomata connect；
The pressure gauge 3 is arranged in pressure maintaining valve 2 and tests on the pipeline between bottom plate 13, and wherein pressure gauge 3 is machinery
Precision pressure gauge or electronic pressure gage, the precision of pressure gauge 3 are 0.002MPa.
The method that being sealed property of bipolar plates water cavity is detected using device for detecting sealability described in the utility model are as follows:
Anode cavities valve 4, cathode cavity valve 5 and water cavity valve 8 are closed, the valve of pressure maintaining valve 2 is opened, adjusts pressure limit
The registration of voltmeter 12 is observed after the registration of voltmeter 12 is stablized for 0.05~0.2MPa, if absolute value of voltage is higher than 0.1V
Then think that there is leakages.
The test method can be used for the water cavity sealing propertytest of monolithic pole plate, can be used for the same of multi-disc pole plate
When detect, as shown in Fig. 2, n piece tested plates 11 and n+1 piece membrane electrode 10 are alternatively arranged, be placed in test upper head plate 9 and test
Between bottom plate 13, i.e., it will test 9, first membrane electrodes of upper head plate, first tested plates, second membrane electrode, second
Tested plates ..., n-th tested plates, (n+1)th membrane electrode, test bottom plate 13 be arranged successively from top to bottom, be placed in pressure
Between machine upper mold 7 and press lower die 14, press upper mold 7 is set to test upper head plate 9 one side opposite with the first membrane electrode, press
Lower die 14 is placed in test bottom plate 13 one side opposite with the (n+1)th membrane electrode, and is fastened using press rotating handle 6, clamping force
For 1~2MPa, wherein 12 connecting test upper head plate 9 of voltmeter and first tested plates, first tested plates with second
Tested plates ..., n-th tested plates and test bottom plate 13, the i.e. detectable test bottom plate 13 and first of voltmeter 12
Piece tested plates, first tested plates and second tested plates ..., n-th tested plates and test upper head plate 9 between
Voltage, and the pole plate of leakproofness difference can be accurately searched by voltage value, while this method can be used for assembling pile
Water cavity air-leakage test.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member makes various modifications or additions to the described embodiments or is substituted in a similar manner, without departing from reality
With novel structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (6)
1. a kind of fuel battery double plates water cavity device for detecting sealability, which is characterized in that including gas source (1), pressure maintaining valve (2),
Pressure gauge (3), anode cavities valve (4), cathode cavity valve (5), press rotating handle (6), press upper mold (7), water cavity valve
(8), upper head plate (9), the first membrane electrode (10), tested plates (11), the second membrane electrode (15), voltmeter (12), test are tested
Bottom plate (13) and press lower die (14)；
First anode chamber stomata, the first cathode cavity stomata, the first water cavity stomata and voltage are provided on the tested plates (11)
Calibrating terminal, the tested plates (11) are respectively arranged with the first membrane electrode (10) and the second membrane electrode on opposite two sides
(15), what tested plates (11) were connected with the first membrane electrode (10) be provided on one side anode gas flow field, tested plates (11) with
Be provided with cathode gas flow fields in the connected one side of second membrane electrode (15), tested plates (11) and the first membrane electrode (10) and
It is provided with gas flowfield on the connected two sides of second membrane electrode (15), is provided with water cavity flow field in tested plates (11), is tested
It is close to pass through tree lace between pole plate (11) and the first membrane electrode (10) and between tested plates (11) and the second membrane electrode (15)
Envelope；
Upper head plate (9) are tested in be on one side provided with opposite with tested plates (11) of first membrane electrode (10)；
Bottom plate (13) are tested in be on one side provided with opposite with tested plates (11) of second membrane electrode (15)；
Second plate chamber stomata, the second cathode cavity stomata, the second water cavity stomata and voltage are provided on the test upper head plate (9)
Calibrating terminal, second plate chamber stomata are connected with anode cavities valve (4), and the second cathode cavity stomata connects cathode cavity valve (5), the
Two water cavity stomatas are connected with water cavity valve (8)；
Test upper head plate (9) is provided with gas flowfield towards the first membrane electrode (10) on one side, test upper head plate (9) and the
It is sealed between one membrane electrode (10) by tree lace；Test bottom plate (13) being provided on one side towards the second membrane electrode (15)
Gas flowfield is tested between bottom plate (13) and the second membrane electrode (15) and is sealed by tree lace；
Third water cavity stomata, the first water cavity stomata, the second water cavity stomata, third water are set on the test bottom plate (13)
Chamber stomata is mutually connected with the water cavity flow field in tested plates (11), the first anode chamber stomata, second plate chamber stomata with
Anode gas flow field is interconnected, and the first cathode cavity stomata, the second cathode cavity stomata and cathode gas flow fields are interconnected；
The test bottom plate (13), the second membrane electrode (15), tested plates (11), the first membrane electrode (10) and test upper head plate
(9) it after being arranged successively assembling, is placed between press upper mold (7) and press lower die (14), is pressed by press rotating handle (6)
Tightly, press upper mold (7) is set to test upper head plate (9) one side opposite with the first membrane electrode (10), and press lower die (14) is placed in
Test bottom plate (13) one side opposite with the second membrane electrode (15), the clamping between press upper mold (7) and press lower die (14)
Pressure is 1MPa~2MPa；
The voltage tester terminal of voltmeter (12) connection tested plates (11) and the voltage tester terminal of test upper head plate (9)
And the voltage tester terminal of the voltage tester terminal of tested plates (11) and test bottom plate (13), the range of voltmeter (12)
For -5~5V, precision 1mV；
Gas source (1) output gas is hydrogen, and the air inlet of gas source (1) connection pressure maintaining valve (2), pressure maintaining valve (2) goes out
Third water cavity stomata on port connecting test bottom plate (13) is connected.
2. a kind of fuel battery double plates water cavity device for detecting sealability according to claim 1, which is characterized in that described
The material of test upper head plate (9) and test bottom plate (13) is metal or graphite, tests upper head plate (9) and test lower end
Plate (13) with a thickness of 1~10mm.
3. a kind of fuel battery double plates water cavity device for detecting sealability according to claim 1, which is characterized in that described
The purity of the hydrogen of gas source (1) output is 99.9~99.999%, and the output pressure of gas source (1) is 0.2~40MPa.
4. a kind of fuel battery double plates water cavity device for detecting sealability according to claim 1, which is characterized in that described
Pressure gauge (3) setting is on the pipeline between pressure maintaining valve (2) and test bottom plate (13), and wherein pressure gauge (3) is mechanical accurate
Pressure gauge or electronic pressure gage, the precision of pressure gauge (3) are 0.002MPa.
5. a kind of fuel battery double plates water cavity device for detecting sealability according to claim 1, which is characterized in that described
Tree lace is that gasket-like is filled in tree lace slot at the tree lace slot is the groove that depth is 0.1~0.5mm, and tree lace slot is provided with
On two workpiece by tree lace sealing.
6. a kind of fuel battery double plates water cavity device for detecting sealability according to claim 1, which is characterized in that described
Test the arrangement mode of tested plates and membrane electrode between upper head plate (9) and test bottom plate (13) are as follows: n piece tested plates
(11) it is alternatively arranged with n+1 piece membrane electrode, i.e., will test upper head plate (9), first membrane electrode, first tested plates, second
Piece membrane electrode, second tested plates ..., n-th tested plates, (n+1)th membrane electrode, test bottom plate (13) from upper and
Under be arranged successively, wherein voltmeter (12) connecting test upper head plate (9) and first tested plates, first tested plates and the
Two tested plates ..., n-th tested plates and test bottom plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821966383.8U CN209043546U (en) | 2018-11-27 | 2018-11-27 | A kind of fuel battery double plates water cavity device for detecting sealability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821966383.8U CN209043546U (en) | 2018-11-27 | 2018-11-27 | A kind of fuel battery double plates water cavity device for detecting sealability |
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| Publication Number | Publication Date |
|---|---|
| CN209043546U true CN209043546U (en) | 2019-06-28 |
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| CN201821966383.8U Active CN209043546U (en) | 2018-11-27 | 2018-11-27 | A kind of fuel battery double plates water cavity device for detecting sealability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253850A (en) * | 2018-11-27 | 2019-01-22 | 安徽明天氢能科技股份有限公司 | A kind of fuel battery double plates water cavity device for detecting sealability and its detection method |
-
2018
- 2018-11-27 CN CN201821966383.8U patent/CN209043546U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253850A (en) * | 2018-11-27 | 2019-01-22 | 安徽明天氢能科技股份有限公司 | A kind of fuel battery double plates water cavity device for detecting sealability and its detection method |
| CN109253850B (en) * | 2018-11-27 | 2023-09-19 | 安徽明天氢能科技股份有限公司 | Fuel cell bipolar plate water cavity tightness detection device |
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