CN218447977U - Short stack structure suitable for membrane electrode test - Google Patents
Short stack structure suitable for membrane electrode test Download PDFInfo
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- CN218447977U CN218447977U CN202122004469.0U CN202122004469U CN218447977U CN 218447977 U CN218447977 U CN 218447977U CN 202122004469 U CN202122004469 U CN 202122004469U CN 218447977 U CN218447977 U CN 218447977U
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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
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model discloses a short stack structure suitable for membrane electrode test, which comprises an end plate and electrode plates, wherein an insulating plate and a plurality of membrane electrode sealing assemblies are arranged between the electrode plates and the end plate, and the middle position of the membrane electrode sealing assembly is integrated with a membrane electrode to be tested; the short stack structure also comprises polar plates which are arranged at intervals through a membrane electrode sealing assembly; the surface of the polar plate is provided with a flow field channel, and the polar plate is provided with a first pipe orifice communicated with the flow field channel. The utility model discloses a short pile structure keeps two plate electrodes through the end plate, utilize polylith membrane electrode seal assembly to separate single polar plate and/or bipolar plate in membrane electrode seal assembly's both sides simultaneously, and seted up the exit of reactant and result on the end plate, and reactant and result that single polar plate and bipolar plate correspond the position and set up are imported and exported, just so can require the adjustment and switch to the different tests of fuel cell and PEM electrolysis trough according to the technological requirement, and the suitability is good, novel structure.
Description
Technical Field
The utility model relates to a fuel cell or PEM electrolysis groove technical field especially relate to a short heap structure that is applicable to the membrane electrode test of fuel cell or PEM electrolysis groove.
Background
Before the fuel cell or the PEM electrolyzer is put into use and after the fuel cell or the PEM electrolyzer is produced, the performance of the membrane electrode needs to be tested, and the membrane electrode can be put into use after the membrane electrode is qualified.
There is no structure available in the prior art that is suitable for use in membrane electrode testing of both fuel cells and PEM electrolyzers.
Therefore, based on the current testing requirements for membrane electrodes of fuel cells and PEM electrolyzers, there is a strong need for those skilled in the art to develop a short stack structure that can be adapted for membrane electrode testing of fuel cells or PEM electrolyzers.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel structure, make it be applicable to the short structure of meeting the test requirement of the membrane electrode of fuel cell or PEM electrolysis groove through adjusting the arrangement of switching bipolar plate and unipolar plate.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses a short heap structure suitable for membrane electrode test, this short heap structure is applicable to the test of the membrane electrode of fuel cell or PEM electrolysis trough, and this short heap structure includes:
end plates located at both ends of the structure;
an electrode plate disposed on an inner side of the end plate with an insulating plate therebetween; and
the membrane electrode assembly comprises a plurality of membrane electrode sealing assemblies arranged between two electrode plates, wherein a membrane electrode to be tested is integrated in the middle of each membrane electrode sealing assembly;
the short stack structure further comprises:
a pole plate;
the polar plates are arranged at intervals through the membrane electrode sealing assembly;
the surface of the polar plate is provided with a flow field channel, and the polar plate is provided with a first pipe orifice communicated with the flow field channel.
Furthermore, a plurality of bolt holes are formed in the end plates along the circumferential direction of the end plates, and the short stack structure is clamped and fixed through the end plates at the two ends and is fastened and connected through a plurality of bolts;
the end plate is provided with a first pipe orifice and a second pipe orifice, the first pipe orifice is matched with the second pipe orifice, and the first pipe orifice and the second pipe orifice are respectively formed into a water inlet quick joint, a water outlet quick joint and a hydrogen outlet quick joint;
the second pipe orifice is plugged by a plug.
Furthermore, the end plate is made of metal;
the end plate has a channel therein and a port of the channel extends to a side plate of the end plate, the channel of the end plate being configured to heat or cool the channel of the end cover.
Further, the polar plates are divided into unipolar plates and bipolar plates.
Further, one side of the unipolar plate is provided with the flow field channel;
the unipolar plate is provided with two first pipe orifices on one side of the flow field channel, and the two first pipe orifices are arranged at two ends of the flow field channel in a staggered manner;
the side of the unipolar plate is provided with a hole with a diameter of 3mm, and the hole is configured as a voltage hole for measuring voltage.
Further, the flow field channels are provided on both sides of the bipolar plate;
two first pipe orifices are arranged on one side of the bipolar plate, which is provided with a flow field channel, and the two first pipe orifices are arranged at two ends of the flow field channel in a staggered manner;
the side of the bipolar plate is opened with a hole having a diameter of 3mm, and the hole is configured as a voltage hole for measuring voltage.
Furthermore, an o-shaped sealing ring is arranged at the joint of the bolt and the unipolar plate.
Furthermore, two positioning pin holes are formed in the bipolar plate and are arranged in a staggered mode;
the bipolar plate and the membrane electrode sealing assembly are connected to the positioning pin hole through a positioning pin.
Furthermore, when the short stack structure is used for testing a membrane electrode of a fuel cell, the unipolar plate is made of graphite, and the bipolar plate is made of graphite;
when the short stack structure is used for a membrane electrode test of a PEM (proton exchange membrane) electrolytic cell, the unipolar plate is made of a titanium material, and the bipolar plate is made of an insulating material.
Furthermore, the o-shaped sealing ring is made of an insulating material.
In the above technical scheme, the utility model provides a pair of short heap structure suitable for membrane electrode test has following beneficial effect:
the utility model discloses a short structure of piling keeps two plate electrodes through the end plate, utilizes polylith membrane electrode seal assembly to separate in membrane electrode seal assembly's both sides with unipolar plate and/or bipolar plate simultaneously to seted up the exit of reactant and result on the end plate, and unipolar plate and bipolar plate correspond reactant and the result that the position was seted up and import and export, just so can require adjustment and switching to the different tests of fuel cell and PEM electrolysis trough according to the technological requirement, and the suitability is good, novel structure.
The utility model discloses a short novel structure of piling, the round hole that is used for measuring voltage has all been seted up in the side of unipolar plate and bipolar plate simultaneously in order to measure the voltage of polar plate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is an exploded view of a short stack structure suitable for membrane electrode testing according to an embodiment of the present invention;
fig. 2 is a front view of a short stack structure suitable for membrane electrode testing according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a short stack structure suitable for membrane electrode testing according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first surface of a monopolar plate suitable for membrane electrode testing according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second surface of a unipolar plate suitable for membrane electrode testing according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a side surface of a monopolar plate suitable for membrane electrode testing according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first surface of a bipolar plate suitable for membrane electrode testing according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second surface of a bipolar plate suitable for membrane electrode testing according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a side surface of a bipolar plate suitable for membrane electrode testing according to an embodiment of the present invention.
Description of the reference numerals:
1. an end plate; 2. an insulating plate; 3. an electrode plate; 4. a membrane electrode seal assembly; 5. positioning pins; 6. An o-shaped seal ring;
101. a water inlet quick connector; 102. a water outlet quick connector; 103. a bolt; 104. a plug; 105. a hydrogen gas outlet quick connector; 106. a channel;
401. a monopolar plate; 402. a bipolar plate; 403. a flow field channel; 404. a first nozzle; 405. and a voltage hole.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-9;
the present embodiment discloses a short stack structure suitable for membrane electrode testing, which is suitable for testing of a membrane electrode of a fuel cell or PEM electrolyzer, the short stack structure comprising:
an electrode plate 3 arranged on the inner side surface of the end plate 1, and an insulating plate 2 is arranged between the electrode plate 3 and the end plate 1; and
a plurality of membrane electrode sealing assemblies 4 arranged between the two electrode plates 3, wherein the middle positions of the membrane electrode sealing assemblies 4 are integrated with membrane electrodes to be tested;
the short stack structure further comprises:
a polar plate;
the polar plates are arranged at intervals through the membrane electrode sealing assembly 4;
flow field channels 403 are formed in the plate surface and the plate has first nozzles 404 in communication with the flow field channels 403.
Specifically, the embodiment discloses a short stack structure capable of meeting membrane electrode test requirements of a fuel cell or a PEM electrolyzer; it includes the end plate 1 at both ends, passes through the plate electrode 3 that insulating board 2 is connected with end plate 1, and simultaneously, plate electrode 3 still need reserve the electrode tip that can extend to the short external portion of piling structure, utilizes electrode terminal and external power electric connection. Meanwhile, in order to input and output the reactant and the product, an opening is reserved on the end plate 1 of this embodiment, and a corresponding first pipe opening 404 is also reserved on the above-mentioned polar plate, and in addition, in order to fully test the performance of the membrane electrode, the reactant needs to be allowed to flow along the above-mentioned flow field channel 403 to achieve the design purpose of full reaction.
The structure is novel, and can be suitable for the membrane electrode test requirements of a fuel cell or a PEM electrolyzer according to the process requirements.
Preferably, a plurality of bolt holes are formed in the end plate 1 of the embodiment along the circumferential direction, and the short stack structure is clamped and fixed by the end plates 1 at the two ends and is fastened and connected by a plurality of bolts 103;
the matching positions of the end plate 1 and the first pipe orifices 404 of the monopolar plate 401 and the bipolar plate 402 are provided with second pipe orifices which are respectively formed into a water inlet quick joint 101, a water outlet quick joint 102 and a hydrogen outlet quick joint 105;
the second orifice is plugged by a plug 104.
More specifically, the method comprises the following steps:
the end plate 1 is made of metal;
the end plate 1 has a channel 106 inside, and the port of this channel 106 extends to the side of the end plate, the channel 106 of the end plate 1 being configured to heat or cool the channel 106 of the end cover.
First, in the present embodiment, the fixing of the whole apparatus is mainly achieved by the end plates 1 at both ends, and therefore, a plurality of bolt holes are opened on the end plate 1 along the circumferential direction thereof, and the fastening connection is achieved by the bolts 103. In addition, the side surface of the end plate 1 is provided with a heating or cooling channel 106, and for the testing requirement of the membrane electrode, the material of the end plate 1 of the embodiment is made of metal.
Preferably, the plates of this embodiment are divided into unipolar plates 401 and bipolar plates 402. The unipolar plate 401 and the bipolar plate 402 are different according to different membrane electrode test requirements in that:
wherein, one side of the unipolar plate 401 has a flow field channel 403;
two first pipe orifices 404 are formed on one side of the unipolar plate 401, which is provided with the flow field channel 403, and the two first pipe orifices 404 are arranged at two ends of the flow field channel 403 in a staggered manner;
the unipolar plate 401 is perforated on its side with a hole of 3mm diameter and configured as a voltage hole 405 for measuring voltage.
Wherein, the two sides of the bipolar plate 402 are provided with flow field channels 403;
two first pipe orifices 404 are respectively arranged on one side of the bipolar plate 402 with the flow field channel 403, and the two first pipe orifices 404 are arranged at two ends of the flow field channel 403 in a staggered manner;
the side of the bipolar plate 402 is perforated with a hole having a diameter of 3mm, and the hole is configured as a voltage hole 405 for measuring voltage.
The insulating plate 2 is provided between the electrode plate 3 and the end plate 1, and the insulating plate 2 of this embodiment plays an insulating role and is generally made of polyfluoro plastics. In addition, the electrode plate 3 is used for collecting current, is generally made of metal, and is generally treated by gold plating or platinum plating on the surface of the electrode plate 3 for corrosion prevention and contact resistance reduction.
Next, the surface of the unipolar plate 401 of this embodiment has first nozzles 404 for the entrance and exit of the reactants and the products, and the flow field channels 403 are uniformly distributed on one surface thereof, and are communicated with the first nozzles 404 that are diagonal to each other through the flow field channels 403, and meanwhile, in order to be able to measure the voltage, a circular hole is opened on the side surface of the unipolar plate 401.
Similar to the unipolar plate 401, the bipolar plate 402 of the present embodiment also has first nozzles 404 for the ingress and egress of reactants and products on the surface thereof, and the flow field channels 403 are uniformly distributed on both surfaces of the bipolar plate 402 and communicated with the first nozzles 404 which are diagonal to each other through the flow field channels 03, and like the unipolar plate 401, circular holes are formed on the side surface of the bipolar plate 402 in consideration of the voltage measurement problem.
When the short stack structure is assembled, the membrane electrode seal assembly 4 is placed between the unipolar plate 401 and the bipolar plate 402, and the bipolar plate 402 in this order.
Preferably, an o-ring 6 is mounted at the joint of the bolt 103 and the unipolar plate 401 in the present embodiment.
Preferably, the bipolar plate 402 of the present embodiment is provided with two positioning pin holes, and the two positioning pin holes are arranged in a staggered manner;
the bipolar plate 402 and the membrane electrode seal assembly 4 are attached to the registration pin holes by registration pins 6.
When the short stack structure is used for membrane electrode test of a fuel cell, the unipolar plate 401 is made of graphite, and the bipolar plate 402 is made of graphite;
when the short stack structure is used for membrane electrode test of a PEM electrolyzer, the unipolar plate 401 is made of titanium, and the bipolar plate 402 is made of insulating material.
Preferably, the o-ring 6 of the present embodiment is made of an insulating material.
In the technical solution, the utility model provides a pair of short heap structure suitable for membrane electrode test has following beneficial effect:
the utility model discloses a short structure of piling keeps two plate electrodes 3 through end plate 1, utilize polylith membrane electrode seal assembly 4 to separate unipolar plate 401 and/or bipolar plate 402 in the both sides of membrane electrode seal assembly 4 simultaneously, and seted up the exit of reactant and result on end plate 1, and unipolar plate 401 and bipolar plate 402 correspond the reactant and the result that the position was seted up and exit, just so can adjust and switch to the different test requirements of fuel cell and PEM electrolysis trough according to the technological requirement, and the suitability is good, novel structure.
The utility model discloses a short novel structure of piling, the round hole that is used for measuring voltage has all been seted up in unipolar plate 401 and bipolar plate 402's side simultaneously in order to measure the voltage of polar plate.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive on the scope of the appended claims.
Claims (10)
1. A short stack structure suitable for membrane electrode testing, suitable for testing of membrane electrodes of a fuel cell or PEM electrolyser, characterized in that it comprises:
end plates (1) located at both ends of the structure;
an electrode plate (3) arranged on the inner side of the end plate (1), an insulating plate (2) being arranged between the electrode plate (3) and the end plate (1); and
the membrane electrode assembly comprises a plurality of membrane electrode sealing assemblies (4) arranged between two electrode plates (3), wherein a membrane electrode to be tested is integrated at the middle position of each membrane electrode sealing assembly (4);
the short stack structure further comprises:
a polar plate;
the polar plates are arranged at intervals through the membrane electrode sealing assembly (4);
the plate surface is formed with flow field channels (403), and the plate has first nozzles (404) communicating with the flow field channels (403).
2. The short stack structure suitable for the membrane electrode test is characterized in that a plurality of bolt holes are formed in the end plate (1) along the circumferential direction of the short stack structure, and the short stack structure is clamped and fixed by the end plates (1) at two ends and is fixedly connected by a plurality of bolts (103);
the end plate (1) is provided with a second pipe orifice at the position matched with the first pipe orifice (404) of the unipolar plate (401) and the bipolar plate (402), and the second pipe orifice is respectively formed into a water inlet quick joint (101), a water outlet quick joint (102) and a hydrogen outlet quick joint (105);
the second pipe orifice is blocked by a plug (104).
3. The short stack structure suitable for membrane electrode test according to claim 2, wherein the end plate (1) is made of metal;
the end plate (1) is internally provided with a channel (106), the port of the channel (106) extends to the side surface of the end plate, and the channel (106) of the end plate (1) is configured to heat or cool the channel (106) of the end cover.
4. A short stack structure suitable for membrane electrode testing according to claim 2, characterized in that the plates are divided into unipolar plates (401) and bipolar plates (402).
5. The short stack structure suitable for membrane electrode testing according to claim 4, wherein one side of the unipolar plate (401) has the flow field channels (403);
the unipolar plate (401) is provided with two first pipe orifices (404) on one side of the flow field channel (403), and the two first pipe orifices (404) are arranged at two ends of the flow field channel (403) in a staggered manner;
the unipolar plate (401) is provided with a hole having a diameter of 3mm on a side surface thereof, and the hole is configured as a voltage hole (405) for measuring voltage.
6. A short stack structure suitable for membrane electrode testing according to claim 4, characterized in that the bipolar plates (402) have the flow field channels (403) on both sides;
two first pipe orifices (404) are arranged on one side of the bipolar plate (402) with the flow field channel (403), and the two first pipe orifices (404) are arranged at two ends of the flow field channel (403) in a staggered manner;
the side of the bipolar plate (402) is perforated with a hole having a diameter of 3mm, and the hole is configured as a voltage hole (405) for measuring voltage.
7. The short stack structure suitable for membrane electrode testing according to claim 5, characterized in that the joints of the bolts (103) and the unipolar plates (401) are provided with o-ring seals (6).
8. The short stack structure suitable for the membrane electrode test according to claim 6, wherein the bipolar plate (402) is provided with two positioning pin holes, and the two positioning pin holes are arranged in a staggered manner;
the bipolar plate (402) and the membrane electrode seal assembly (4) are connected to the registration pin holes by registration pins (5).
9. The short stack structure suitable for membrane electrode test according to claim 4, wherein when the short stack structure is used for membrane electrode test of fuel cell, the unipolar plate (401) is made of graphite, and the bipolar plate (402) is made of graphite;
when the short stack structure is used for a membrane electrode test of a PEM (proton exchange membrane) electrolyzer, the unipolar plate (401) is made of titanium, and the bipolar plate (402) is made of an insulating material.
10. The short stack structure suitable for membrane electrode test according to claim 7, wherein the o-ring (6) is made of insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122004469.0U CN218447977U (en) | 2021-08-24 | 2021-08-24 | Short stack structure suitable for membrane electrode test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122004469.0U CN218447977U (en) | 2021-08-24 | 2021-08-24 | Short stack structure suitable for membrane electrode test |
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| CN218447977U true CN218447977U (en) | 2023-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116895794A (en) * | 2023-04-14 | 2023-10-17 | 上海氢晨新能源科技有限公司 | Test system suitable for proton exchange membrane electrolytic tank and fuel cell |
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2021
- 2021-08-24 CN CN202122004469.0U patent/CN218447977U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116895794A (en) * | 2023-04-14 | 2023-10-17 | 上海氢晨新能源科技有限公司 | Test system suitable for proton exchange membrane electrolytic tank and fuel cell |
| CN116895794B (en) * | 2023-04-14 | 2024-03-12 | 上海氢晨新能源科技有限公司 | Test system suitable for proton exchange membrane electrolytic tank and fuel cell |
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