CN207705349U - A kind of device for detecting graphite bi-polar plate tightness - Google Patents
A kind of device for detecting graphite bi-polar plate tightness Download PDFInfo
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- CN207705349U CN207705349U CN201721887361.8U CN201721887361U CN207705349U CN 207705349 U CN207705349 U CN 207705349U CN 201721887361 U CN201721887361 U CN 201721887361U CN 207705349 U CN207705349 U CN 207705349U
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- upper cover
- cover plate
- plate
- lower plate
- graphite
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model is related to a kind of devices for detecting graphite bi-polar plate tightness, including lower plate (1), upper cover plate (2), upper cover plate driving mechanism (3), gas supply mechanism and U-tube (4), lower plate (1) is fixedly installed, lower plate chamber with open top and the air inlet being connected to lower plate chamber, upper cover plate (2) is oppositely arranged with lower plate (1), upper cover plate chamber with bottom opening and the gas outlet being connected to upper cover plate chamber, upper cover plate driving mechanism (3) is sequentially connected with upper cover plate (2), for driving upper cover plate (2) to be moved toward and away from lower plate (1), gas supply mechanism is connected by air inlet with lower plate chamber, U-tube (4) is connected by gas outlet with upper cover plate chamber.Compared with prior art, the utility model is simple in structure, easy to operate, and reliability is high, and wide adaptability can also not only quantitative determine leakage rate with the air-tightness of observational measurement graphite cake.
Description
Technical field
The utility model belongs to fuel cell field, more particularly, to a kind of dress for detecting graphite bi-polar plate tightness
It sets.
Background technology
Bipolar plates are performance components important in fuel cell pack, and both sides, which are equipped with, makes the equally distributed runner of reactant, it
It is responsible for fuel and air to be assigned to two electrode surfaces and battery pile radiates, therefore is more demanding to its air-tightness, at present
The material that bipolar plates most generally use is graphite, and graphite bi-polar plate is usually to mix graphitizable resin using carbon dust or graphite powder
It is prepared, it, may existing defects in preparation process so that and graphite, which double-clicks plate matrix, may have airtight sex chromosome mosaicism,
If air-tightness is bad, harmful effect can be generated to the performance of fuel cell.
Chinese patent CN106025402A discloses a kind of on-line detecting system of bipolar plates leakproofness, first by bipolar plates
It carries out being aligned fastening with injecting glue template, then injects glue into the injecting glue conduit of injecting glue template, then two nitrogen charging devices
It starts to work, two nitrogen charging devices are connect with the anode interface of bipolar plates and cathode interface respectively, two nitrogen charging devices point
Nitrogen Jiao Ti not be poured into bipolar plates, then detaches bipolar plates with injecting glue template, checked in bipolar plates seal groove
Glue illustrates that poor sealing, no bubble illustrate that leakproofness is good if there is bubble.It is only used for sealing position
Air-leakage test can not be used for the air-leakage test of graphite cake matrix, and can only carry out qualitative detection to air-tightness, can not
Calculate leakage rate.
Invention content
The purpose of this utility model is exactly to be provided a kind of for detecting to overcome the problems of the above-mentioned prior art
The device of graphite bi-polar plate tightness.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of device for detecting graphite bi-polar plate tightness, including,
Lower plate, fixed setting, the air inlet that there is the lower plate chamber of open top and be connected to lower plate chamber,
Upper cover plate is oppositely arranged with lower plate, is had the upper cover plate chamber of bottom opening and is gone out with what upper cover plate chamber was connected to
Gas port,
Upper cover plate driving mechanism is sequentially connected with upper cover plate, for driving upper cover plate to be moved toward and away from lower plate,
Gas supply mechanism is connected by air inlet with lower plate chamber,
U-tube is connected by gas outlet with upper cover plate chamber.
Preferably, the lower surface of the upper cover plate and the upper surface of lower plate be respectively equipped with surround upper cover plate chamber opening and
The gasket of lower plate opening.
Preferably, the shape of the gasket and the shape for the seal groove being arranged on graphite bi-polar plate match.
Preferably, the cylinder that the upper cover plate driving mechanism includes holder and is arranged on holder, the upper cover plate
It is arranged in the cylinder rod of cylinder.
Preferably, the air inlet is arranged in the side of lower plate, and the gas outlet is arranged in the side of upper cover plate.
Preferably, the gas supply mechanism includes air source and the pressure gauge that is arranged at source outlet.
Preferably, the U-tube is glass U-tube, and vertical to place, one end of U-tube passes through rubber tube and gas outlet
Connection, the other end and atmosphere.
Graphite bi-polar plate is placed on lower plate, upper cover plate pushes, and graphite bi-polar plate is clipped in lower plate and upper cover plate
Between, compressed air injects lower plate intracavitary via pressure gauge from source outlet from the air admission hole of lower plate, if graphite cake base
Body has leakage, and air can penetrate graphite cake from the opening of lower plate chamber and enter upper cover plate chamber by graphite cake, then pass through
Rubber tube flows into U-tube, and the water level in glass tube is pushed away down, poor by reading the fluid level scale on glass tube, it can be seen that
Graphite cake air leakage rate hourly.
Compared with prior art, the utility model has the advantages that：
(1) graphite bi-polar plate is fixed between lower plate and upper cover plate, and gasket is set, simulate graphite bi-polar plate
State in pile realizes under nondestructive state to the reliable measurements of graphite bi-polar plate tightness.
(2) device can also not only quantitative determine leakage rate with the air-tightness of observational measurement graphite cake.
(3) simple in structure, easy to operate, reliability is high, and can be simply by adjustment upper cover plate driving mechanism
The air pressure of lower pressure, the shape of gasket and pressure gauge meets different testing requirements, wide adaptability.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
In figure, 1 is lower plate, and 2 be upper cover plate, and 3 be upper cover plate driving mechanism, and 4 be U-tube, and 5 be gasket, and 6 be graphite
Bipolar plates, 7 be pressure gauge, and 8 be rubber tube.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of device for detecting graphite bi-polar plate tightness, as shown in Figure 1, including：
Lower plate 1, fixed setting, the air inlet that there is the lower plate chamber of open top and be connected to lower plate chamber,
Upper cover plate 2 is oppositely arranged with lower plate 1, upper cover plate chamber with bottom opening and is connected to upper cover plate chamber
Gas outlet,
Upper cover plate driving mechanism 3 is sequentially connected with upper cover plate 2, for driving upper cover plate 2 to be transported toward and away from lower plate 1
It is dynamic,
Gas supply mechanism is connected by air inlet with lower plate chamber,
U-tube 4 is connected by gas outlet with upper cover plate chamber.
In the present embodiment, the lower surface of upper cover plate 2 and the upper surface of lower plate 1 be respectively equipped with surround upper cover plate chamber opening and
The gasket 5 of lower plate opening.And further, the shape of gasket 5 and the seal groove that is arranged on graphite bi-polar plate 6
Shape matches.Usually, the shape phase of the opening shape of upper cover plate chamber and lower cover chamber and the flow passage area of graphite bi-polar plate
Matching, to improve the reliability of testing result.Air inlet is arranged in the side of lower plate 1, and gas outlet is arranged in the side of upper cover plate 2
Face.
In the present embodiment, upper cover plate driving mechanism 3 includes holder and the cylinder being arranged on holder, and the setting of upper cover plate 2 exists
In the cylinder rod of cylinder.
In the present embodiment, gas supply mechanism includes air source and the pressure gauge 7 that is arranged at source outlet.U-tube 4 is glass U
Type pipe, vertical to place, one end of U-tube is connect by rubber tube 8 with gas outlet, the other end and atmosphere.
When detection, graphite bi-polar plate is placed on lower plate, upper cover plate push, by graphite bi-polar plate be clipped in lower plate and
Between upper cover plate, compressed air injects lower plate intracavitary via pressure gauge from source outlet from the air admission hole of lower plate, if stone
Black plate matrix has leakage, air that can penetrate graphite cake from the opening of lower plate chamber and enter upper cover plate chamber by graphite cake,
It is flowed into U-tube by rubber tube again, the water level in glass tube is pushed away down, it is poor by reading the fluid level scale on glass tube,
It can be seen that graphite cake air leakage rate hourly.
The above-mentioned description to embodiment is for ease of ordinary skill in the art to understand and use the invention.It is ripe
The personnel for knowing art technology obviously easily can make various modifications to these embodiments, and general original described herein
It ought to use in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to the above embodiments, this
Field technology personnel announcement according to the present utility model, does not depart from improvement that the utility model scope is made and modification all should
It is within the protection scope of the utility model.
Claims (7)
1. a kind of device for detecting graphite bi-polar plate tightness, which is characterized in that including,
Lower plate (1), fixed setting, the air inlet that there is the lower plate chamber of open top and be connected to lower plate chamber,
Upper cover plate (2) is oppositely arranged with lower plate (1), upper cover plate chamber with bottom opening and is connected to upper cover plate chamber
Gas outlet,
Upper cover plate driving mechanism (3) is sequentially connected with upper cover plate (2), for driving upper cover plate (2) toward and away from lower plate
(1) it moves,
Gas supply mechanism is connected by air inlet with lower plate chamber,
U-tube (4) is connected by gas outlet with upper cover plate chamber.
2. a kind of device for detecting graphite bi-polar plate tightness according to claim 1, which is characterized in that described
The lower surface of upper cover plate (2) and the upper surface of lower plate (1) be respectively equipped with surround upper cover plate chamber opening and lower plate opening it is close
Packing (5).
3. a kind of device for detecting graphite bi-polar plate tightness according to claim 2, which is characterized in that described
The shape of gasket (5) and the shape for the seal groove being arranged on graphite bi-polar plate (6) match.
4. a kind of device for detecting graphite bi-polar plate tightness according to claim 1, which is characterized in that described
Upper cover plate driving mechanism (3) includes holder and the cylinder that is arranged on holder, and the cylinder rod in cylinder is arranged in the upper cover plate (2)
On.
5. a kind of device for detecting graphite bi-polar plate tightness according to claim 1, which is characterized in that described
Air inlet setting is arranged in the side of lower plate (1), the gas outlet in the side of upper cover plate (2).
6. a kind of device for detecting graphite bi-polar plate tightness according to claim 1, which is characterized in that described
Gas supply mechanism includes air source and the pressure gauge (7) that is arranged at source outlet.
7. a kind of device for detecting graphite bi-polar plate tightness according to claim 1, which is characterized in that described
U-tube (4) is glass U-tube, vertical to place, and one end of U-tube connect by rubber tube (8) with gas outlet, the other end and greatly
Gas is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721887361.8U CN207705349U (en) | 2017-12-29 | 2017-12-29 | A kind of device for detecting graphite bi-polar plate tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721887361.8U CN207705349U (en) | 2017-12-29 | 2017-12-29 | A kind of device for detecting graphite bi-polar plate tightness |
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| Publication Number | Publication Date |
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| CN207705349U true CN207705349U (en) | 2018-08-07 |
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| CN201721887361.8U Active CN207705349U (en) | 2017-12-29 | 2017-12-29 | A kind of device for detecting graphite bi-polar plate tightness |
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Cited By (1)
| 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 |
-
2017
- 2017-12-29 CN CN201721887361.8U patent/CN207705349U/en active Active
Cited By (1)
| 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 |
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