CN110514084A - A kind of fuel battery pole board runner formed precision detection method - Google Patents
A kind of fuel battery pole board runner formed precision detection method Download PDFInfo
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- CN110514084A CN110514084A CN201910727449.0A CN201910727449A CN110514084A CN 110514084 A CN110514084 A CN 110514084A CN 201910727449 A CN201910727449 A CN 201910727449A CN 110514084 A CN110514084 A CN 110514084A
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- runner
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
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- General Physics & Mathematics (AREA)
- Fuel Cell (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention provides a kind of fuel battery pole board flow-paths inspection method comprising: casting step is poured, and the fluid upper surface after casting complete will be higher by the upper surface of the runner using runner of the streaming flow to bipolar plates；Step is stood, the streaming flow is flowed through to the runner of whole length, it is rear to stand t minutes, so that the fluid solidifies；Step is taken out, the fluid stood after solidifying is torn along the direction of the runner；Solid fluid after taking-up is measured its size using measuring instrument by measuring process.This kind of detection method has compared the precision that detection is substantially increased for existing non-contact detection means through the invention, compared to rise existing contact type measurement means for due to using the streaming flow that will not damage bipolar plate runner, its runner that will not scratch bipolar plates, its security performance is higher, effectively can ensure that the measurement accuracy of bipolar plate runner simultaneously and ensure that the structural strength and security reliability of bipolar plates.
Description
Technical field
The invention belongs to field of fuel cell technology, and in particular to a kind of fuel battery pole board runner formed precision detection side
Method.
Background technique
Fuel cell is a very promising energy technology, compared with existing conventional energy transformation technology, fuel
Battery has many advantages, including higher energy conversion efficiency, zero release of pollutant, movement-less part work peace and quiet etc..Combustion
Battery is expected there are many type, and the present invention focuses on the field Proton Exchange Membrane Fuel Cells (PEMFC).Although pem fuel
Battery has many advantages, such as, but there is also some urgent problems to be solved.
In Proton Exchange Membrane Fuel Cells, bipolar plates are core components, in entire fuel cell pile weight and cost
In account for sizable specific gravity (proton exchange membrane fuel cell structure signal and common appearance, the main function of performance it is as follows: 1.
Structural support effect is played for pile；2. providing stream to participate in three kinds of media of coolant liquid of the hydrogen of reaction, air and cooling pile
Circulation passage (or being " flow field "), while again keeping apart three kinds of media；3. electric action, by each cells in series at one
Whole heap.
The structure of bipolar plate flow field has been largely fixed the uniformity and generation of fuel cell each medium distribution
The drainage performance of water, and this two indexs are particularly significant for the performance of fuel cell.Therefore, it is necessary to examine from design aspect is thorough
Consider the structure of bipolar plate flow field；The strict control bipolar plate flow field formed precision in terms of processing.
Common dual polar plates of proton exchange membrane fuel cell material has graphite plate and metal plate, and the present invention focuses metal bipolar
Plate.
The structure of bipolar plate flow field has been largely fixed the uniformity and generation of fuel cell each medium distribution
The drainage performance of water, and this two indexs are particularly significant for the performance of fuel cell.Therefore, it is necessary to examine from design aspect is thorough
Consider the structure of bipolar plate flow field；From processing and context of detection strict control bipolar plate flow field formed precision.Formed precision control
Critical size is trench depth, width and the angle R.
Existing runner measurement method is mainly that image measurer and contourgraph measure two kinds, the former uses contactless survey
Amount, because runner belongs to groove and cannot destroy, measurement accuracy deviation is larger, and required precision is not achieved.The latter belongs to contact survey
Bipolar plate surfaces easily are caused to scratch by amount.
It is wanted since fuel battery pole board runner measurement method in the prior art presence or low measurement accuracy are not achieved
It asks or is easy to cause bipolar plate surfaces the technical problems such as scuffing, therefore researching and designing of the present invention goes out a kind of fuel cell pole
Plate runner formed precision detection method.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming fuel battery pole board runner in the prior art measurement side
Method can not meet measurement accuracy simultaneously and guarantee the defect that bipolar plate surfaces are not scratched, to provide a kind of fuel battery pole board
Runner formed precision detection method.
The present invention provides a kind of fuel battery pole board flow-paths inspection method comprising:
It is poured step, is poured using runner of the streaming flow to bipolar plates, and the fluid upper surface after casting complete
It is higher by the upper surface of the runner；
Step is stood, the streaming flow is flowed through to the runner of whole length, it is rear to stand t minutes, so that the stream
Body solidification；
Step is taken out, the fluid stood after solidifying is torn along the direction of the runner；
Solid fluid after taking-up is measured its size using measuring instrument by measuring process.
Preferably,
The fluid is silica gel；And/or described t minutes is 50-80 minutes；The measuring instrument includes three-D, projection
At least one of instrument, image measurer, contourgraph.
Preferably,
It further include mixing step comprising the step that the streaming flow is mixed before the casting step
Suddenly, the fluid includes liquid-state silicon gel and silica gel curing agent at this time, and according to pre- between the liquid-state silicon gel and silica gel curing agent
If weight ratio is matched.
Preferably,
The preset weight ratio is 100:1-3, and/or, it further include concussion step after the mixing step.
Preferably,
It further include cleaning step after the mixing step, the cleaning step includes being cleaned to bipolar plate surfaces
Step, the cleaning step use cleaning agent, and the cleaning agent includes at least one of absolute alcohol and acetone.
Preferably,
It further include detecting step, it includes the first pressing plate and the second pressing plate that the detecting step, which uses, and the bipolar plates are pressed from both sides
Between first pressing plate and second pressing plate, while detecting by measuring tool the thickness of the bipolar plates.
Preferably,
The face of first pressing plate to connect with the bipolar plates is configured to multiple the first grooves successively to connect and
One protrusion, first groove connect with the cooperation of the crowning of the bipolar plates side, first protrusion and the bipolar plates
The side concave face cooperation connect.
Preferably,
The face of second pressing plate to connect with the bipolar plates be also arranged to multiple the second grooves successively to connect and
Second protrusion, second groove connect with the cooperation of the crowning of the bipolar plates other side, and described second is raised and described double
The concave face cooperation of the other side of pole plate connects.
Preferably,
First pressing plate include it is opposite with the bipolar plates and be located at edge third end face, the third end face with
The flush of first groove, second pressing plate include the 4th end that is opposite with the bipolar plates and being located at edge
Face, the flush of the 4th end face and second groove；First pressing plate further includes opposite with the third end face
First end face, second pressing plate further includes the second end face opposite with the 4th end face,
The detecting step further includes carrying out sandwiched to the bipolar plates in first pressing plate and second pressing plate
When, the size between the first end face and the second end face is measured by measuring tool, the dimension D of acquisition；Institute
Stating detecting step further includes that the distance between the first end face and the third end face d1, Yi Jijian are detected by measuring tool
Survey the distance between the second end face and the 4th end face d2；Finally obtain the thickness H=D-d1- of the bipolar plates
d2。
Preferably,
The measuring tool is vernier caliper；And/or first pressing plate and/or second pressing plate are that can occur
The component of deformation.
A kind of fuel battery pole board flow-paths inspection method provided by the invention has the following beneficial effects:
The step that the present invention is poured by using runner of the streaming flow to bipolar plates, and stands, takes out and measure
Suddenly, can ground measurement obtain the detailed runner information of the bipolar plates, such as flow channel length, turning, radian, bending number etc.
Information, and this kind of detection method has compared the precision that detection is substantially increased for existing non-contact detection means, compares
Rise existing contact type measurement means for due to using streaming flow (the preferably silica gel that will not damage bipolar plate runner
Liquid state, other substances can also be used in the liquid of solidifiable, as long as capableing of the object of liquidization and flow and solid solidification
Matter), the runner of bipolar plates will not be scratched, therefore its security performance is higher, can effectively ensure that bipolar plate runner simultaneously
Measurement accuracy and ensure that the structural strength and security reliability of bipolar plates.
2. the present invention can also be passed through by the structure (preferably inspection rule) and measuring tool of the first pressing plate and the second pressing plate
First and second pressing plates are realized bipolar plates and are compressed, and male and fomale(M&F) matches and connects, and just can effectively be detected by measuring tool
And the thickness of bipolar plates is calculated, measurement accuracy is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the metal double polar plates in fuel battery pole board flow-paths inspection method of the invention；
Fig. 2 is the structural schematic diagram of the bipolar plate flow field runner in fuel battery pole board flow-paths inspection method of the invention；
Fig. 3 is the schematic illustration detected using pressing plate in fuel battery pole board flow-paths inspection method of the invention.
Appended drawing reference indicates in figure are as follows:
1, bipolar plates；11, crowning；12, concave face；13, air flow channel；14, hydrogen runner；15, cooling liquid flowing channel；2,
First pressing plate；21, the first groove；22, the first protrusion；23, first end face；24, third end face；3, the second pressing plate；31, second is recessed
Slot；32, the second protrusion；33, second end face；34, the 4th end face；4, measuring tool；5, flow field.
Specific embodiment
As shown in Figure 1-3, the present invention provides a kind of fuel battery pole board flow-paths inspection method comprising:
It is poured step, is poured using runner of the streaming flow to bipolar plates, and the fluid upper surface after casting complete
It is higher by the upper surface of the runner；
Step is stood, the streaming flow is flowed through to the runner of whole length, it is rear to stand t minutes, so that the stream
Body solidification；
Step is taken out, the fluid stood after solidifying is torn along the direction of the runner；
Solid fluid after taking-up is measured its size using measuring instrument by measuring process.
The step that the present invention is poured by using runner of the streaming flow to bipolar plates, and stands, takes out and measure
Suddenly, can ground measurement obtain the detailed runner information of the bipolar plates, such as flow channel length, turning, radian, bending number etc.
Information, and this kind of detection method has compared the precision that detection is substantially increased for existing non-contact detection means, compares
Rise existing contact type measurement means for due to using streaming flow (the preferably silica gel that will not damage bipolar plate runner
Liquid state, other substances can also be used in the liquid of solidifiable, as long as capableing of the object of liquidization and flow and solid solidification
Matter), the runner of bipolar plates will not be scratched, therefore its security performance is higher, can effectively ensure that bipolar plate runner simultaneously
Measurement accuracy and ensure that the structural strength and security reliability of bipolar plates.
1, the glue prepared is slowly poured along bipolar plate runner, silica gel upper surface will be higher by flow path groove upper oral part, to silicon
Glue levelling runner to be detected, static solidification 50-80 minutes.
2, along runner direction, silica gel of gently tearing.
3, cured silica gel is cut according to test request, measures its size with high-acruracy survey instrument, high-precision is surveyed
Measuring instrument includes but is not limited to three-D, projector, image measurer, contourgraph etc..
Preferably,
The fluid is silica gel；And/or described t minutes is 50-80 minutes；The measuring instrument includes three-D, projection
At least one of instrument, image measurer, contourgraph.This is the preferred constructive form of streaming flow of the invention, i.e. silica gel
Liquid condition forms the fluid of the flowing, can be realized and flows in the runner of flow field and be easy to be solidified at normal temperature to solid-state,
Static solidification can be such that it effectively solidifies in 50-80 minutes, so that runner measures more accurate, measuring instrument is three-D, projection
At least one of instrument, image measurer, contourgraph are capable of the dimensional structure of effectively measuring runner out.
Preferably,
It further include mixing step comprising the step that the streaming flow is mixed before the casting step
Suddenly, the fluid includes liquid-state silicon gel and silica gel curing agent at this time, and according to pre- between the liquid-state silicon gel and silica gel curing agent
If weight ratio is matched.It can be mixed before streaming flow casting by mixing step, in favor of the solidification of silica gel.
Preferably,
The preset weight ratio is 100:1-3, and/or, it further include concussion step after the mixing step.Concussion side
Formula includes but is not limited to ultrasonic degassing.Bubble can be effectively excluded by concussion.
1, liquid-state silicon gel and silica gel curing agent are mixed evenly according to 100:1-3, and shake exclusion bubble, shake mode
Including but not limited to ultrasonic degassing；
2, bipolar plate surfaces are cleaned up with cleaning agent, and cleaning agent includes but is not limited to absolute alcohol, acetone etc..
3, the glue prepared is slowly poured along bipolar plate runner, silica gel upper surface will be higher by flow path groove upper oral part, to silicon
Glue levelling runner to be detected, static solidification 50-80 minutes.
4, along runner direction, silica gel of gently tearing.
5, cured silica gel is cut according to test request, measures its size with high-acruracy survey instrument, high-precision is surveyed
Measuring instrument includes but is not limited to three-D, projector, image measurer, contourgraph etc..
Preferably,
It further include cleaning step after the mixing step, the cleaning step includes being cleaned to bipolar plate surfaces
Step, the cleaning step use cleaning agent, and the cleaning agent includes at least one of absolute alcohol and acetone.Cleaning is dry
Only, cleaning agent includes but is not limited to absolute alcohol, acetone etc..
Preferably,
It further include detecting step, it includes the first pressing plate 2 and the second pressing plate 3 that the detecting step, which uses, by the bipolar plates 1
It is located between first pressing plate 2 and second pressing plate 3, while detecting the thickness of the bipolar plates 1 by measuring tool 4
Degree.The present invention also passes through the structure (preferably inspection rule) of the first pressing plate and the second pressing plate and measuring tool can be by first and the
Two pressing plates are realized bipolar plates and are compressed, and male and fomale(M&F) matches and connects, and just effectively can detect and calculate by measuring tool
The thickness of bipolar plates out, measurement accuracy are high.
Preferably,
The face of first pressing plate 2 to connect with the bipolar plates 1 is configured to multiple the first grooves 21 successively to connect
With the first protrusion 22, first groove 21 connects with the cooperation of the crowning 11 of 1 side of bipolar plates, first protrusion 22
Connect with the cooperation of the concave face 12 of the side of the bipolar plates 1.When can be realized the first pressing plate in this way and being engaged with bipolar plates
By the first groove on the first pressing plate lower end surface and the first protrusion respectively in bipolar plates crowning and concave face match,
It enables to the two to be formed to be tightly engaged into, is conducive to the thickness for measuring bipolar plates.
Preferably,
The face of second pressing plate 3 to connect with the bipolar plates 1 is also arranged to multiple the second grooves successively to connect
31 and second protrusion 32, second groove 31 connect with the cooperation of the crowning 11 of 1 other side of bipolar plates, described second is convex
32 are played to connect with the cooperation of the concave face 12 of the other side of the bipolar plates 1.It can be realized the second pressing plate and bipolar plates in this way
When engagement by the second groove on the second pressing plate lower end surface and the second protrusion respectively with the crowning and concave face in bipolar plates
It matches, enables to the two to be formed and be tightly engaged into, be conducive to the thickness for measuring bipolar plates.
Preferably,
First pressing plate 2 includes third end face 24 that is opposite with the bipolar plates 1 and being located at edge, the third end
The flush in face 24 and first groove 21, second pressing plate 3 include opposite with the bipolar plates 1 and are located at edge
The 4th end face 34, the flush of the 4th end face 34 and second groove 31；First pressing plate 2 further includes and institute
The opposite first end face 23 in third end face 24 is stated, second pressing plate 3 further includes the second end opposite with the 4th end face 34
Face 33,
The detecting step further includes carrying out sandwiched to the bipolar plates in first pressing plate and second pressing plate
When, the size between the first end face 23 and the second end face 33 is measured by measuring tool 4, the size of acquisition
D；The detecting step further includes that the distance between the first end face 23 and the third end face 24 are detected by measuring tool
D1, and detection the distance between the second end face 33 and the 4th end face 34 d2；Finally obtain the thickness of the bipolar plates
Spend size H=D-d1-d2.
This is the preferred steps form of measurement and the calculating of bipolar plate thickness of the invention, i.e., first carries out two pressing plates
It fastens bipolar plates therebetween, measures whole thickness dimension D, then distance between the first of the first pressing plate and third end face is individually subtracted
D1 and second and the 4th distance d2 between end face for subtracting the second pressing plate, so that is finally obtained is that the upper surfaces of bipolar plates is arrived
The distance between lower end surface (i.e. the distance between two crownings up and down), realizes the measurement to the thickness of bipolar plates.
Preferably,
The measuring tool 4 is vernier caliper；And/or first pressing plate 2 and/or second pressing plate 3 are that can send out
The component of raw deformation.It is preferred that being advised by the inspection that flexible material is fabricated to, the preferred aluminium alloy of flexible material.This is measurement work of the invention
The preferred constructive form of the preferred constructive form of tool and the first and second pressing plates, using deformable member can make its with it is double
Effective deformation occurs when cooperating between the runner of pole plate, and forms tight fit, the dimensional measurement precision for after provides item
Part.
The inspection rule of flexible material (preferably aluminium alloy) production can be used in the present invention, measure bipolar plates whole height.
Specific implementation: inspection is advised vertically and bipolar plate runner face is vertical, bumps are coincide；It is surveyed with slide calliper rule or other measuring tools
Measure total height；It calculates theoretical height and actual height is poor.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (10)
1. a kind of fuel battery pole board flow-paths inspection method, it is characterised in that: include:
It is poured step, is poured using runner of the streaming flow to bipolar plates, and the fluid upper surface after casting complete wants high
The upper surface of the runner out；
Step is stood, the streaming flow is flowed through to the runner of whole length, it is rear to stand t minutes, so that the fluid is solid
Change；
Step is taken out, the fluid stood after solidifying is torn along the direction of the runner；
Solid fluid after taking-up is measured its size using measuring instrument by measuring process.
2. detection method according to claim 1, it is characterised in that:
The fluid is silica gel；And/or described t minutes is 50-80 minutes；The measuring instrument includes three-D, projector, shadow
As at least one of measuring instrument, contourgraph.
3. detection method according to claim 1, it is characterised in that:
It further include mixing step comprising the step of streaming flow is mixed before the casting step, this
Shi Suoshu fluid includes liquid-state silicon gel and silica gel curing agent, and according to preset weight between the liquid-state silicon gel and silica gel curing agent
Ratio is matched.
4. detection method according to claim 3, it is characterised in that:
The preset weight ratio is 100:1-3, and/or, it further include concussion step after the mixing step.
5. detection method according to claim 3, it is characterised in that:
It further include cleaning step after the mixing step, the cleaning step includes the step cleaned to bipolar plate surfaces
Suddenly, the cleaning step uses cleaning agent, and the cleaning agent includes at least one of absolute alcohol and acetone.
6. detection method according to any one of claims 1-5, it is characterised in that:
It further include detecting step, it includes the first pressing plate (2) and the second pressing plate (3) that the detecting step, which uses, by the bipolar plates
(1) it is located between first pressing plate (2) and second pressing plate (3), while described bipolar by measuring tool (4) detection
The thickness of plate (1).
7. detection method according to claim 6, it is characterised in that:
The face of first pressing plate (2) to connect with the bipolar plates (1) is configured to multiple the first grooves successively to connect
(21) connect with first raised (22), first groove (21) with the cooperation of the crowning (11) of the bipolar plates (1) side, institute
First raised (22) are stated to connect with the cooperation of the concave face (12) of the side of the bipolar plates (1).
8. detection method according to claim 6 or 7, it is characterised in that:
The face of second pressing plate (3) to connect with the bipolar plates (1) is also arranged to multiple the second grooves successively to connect
(31) connect with second raised (32), second groove (31) with the cooperation of the crowning (11) of the bipolar plates (1) other side,
Described second raised (32) connect with the cooperation of the concave face (12) of the other side of the bipolar plates (1).
9. detection method a method according to any one of claims 6-8, it is characterised in that:
First pressing plate (2) includes third end face (24) that is opposite with the bipolar plates (1) and being located at edge, the third
The flush of end face (24) and first groove (21), second pressing plate (3) include opposite with the bipolar plates (1)
And it is located at the 4th end face (34) at edge, the flush of the 4th end face (34) and second groove (31)；Described
One pressing plate (2) further includes the first end face (23) opposite with third end face (24), and second pressing plate (3) further includes and institute
The opposite second end face (33) in the 4th end face (34) is stated,
The detecting step further includes leading to when first pressing plate and second pressing plate carry out sandwiched to the bipolar plates
It crosses measuring tool (4) to measure the size between the first end face (23) and the second end face (33), the ruler of acquisition
Very little D；The detecting step further includes being detected between the first end face (23) and the third end face (24) by measuring tool
Distance d1, and detection the distance between the second end face (33) and the 4th end face (34) d2；Described in final acquisition
The thickness H=D-d1-d2 of bipolar plates.
10. detection method according to claim 6, it is characterised in that:
The measuring tool (4) is vernier caliper；And/or first pressing plate (2) and/or second pressing plate (3) be can
The component that deformation occurs.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115326005A (en) * | 2022-10-14 | 2022-11-11 | 中国核动力研究设计院 | Method, device, equipment and medium for measuring heat exchange pellet micro-channel deformation value |
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| CN115326005A (en) * | 2022-10-14 | 2022-11-11 | 中国核动力研究设计院 | Method, device, equipment and medium for measuring heat exchange pellet micro-channel deformation value |
| CN115326005B (en) * | 2022-10-14 | 2022-12-13 | 中国核动力研究设计院 | Method, device, equipment and medium for measuring heat exchange pellet micro-channel deformation value |
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