CN201732505U - Hydrogen fuel cell demonstrator - Google Patents
Hydrogen fuel cell demonstrator Download PDFInfo
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- CN201732505U CN201732505U CN2010202739176U CN201020273917U CN201732505U CN 201732505 U CN201732505 U CN 201732505U CN 2010202739176 U CN2010202739176 U CN 2010202739176U CN 201020273917 U CN201020273917 U CN 201020273917U CN 201732505 U CN201732505 U CN 201732505U
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- fuel cell
- water storage
- electrode
- clamping plate
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Abstract
The utility model relates to a hydrogen fuel cell demonstrator, which comprises a hydrogen gas source, an oxygen gas source, a fuel cell and a load, wherein the hydrogen gas source and the oxygen gas source are respectively communicated to the fuel cell which is electrically connected with the load. The hydrogen fuel cell demonstrator is vivid and visual, the oxygen gas source and the hydrogen gas source are communicated to the fuel cell to supply hydrogen gas and oxygen gas required by the demonstrator, and the fuel cell generates power to drive the load, so that students can visually learn basic structure and operating principle of the fuel cell.
Description
Technical field
The utility model relates to a kind of education or demonstration equipment, relates in particular to a kind of hydrogen fuel cell demonstration device.
Background technology
Fuel cell is a kind of chemical energy in fuel and the oxygenant to be converted into the efficient generating apparatus of electric energy by the mode of electrochemical reaction, has characteristics such as energy conversion efficiency height, cleaning, high power density.Compare with the fuel cell of other types, PEM hydrogen fuel cell working temperature is minimum, and specific energy is the highest, start soon, the life-span is long, compact conformation, therefore be the optimal candidate's power supply of electric automobile, can also have boundless application prospect as the desirable standby power supply of family expenses.
The PEM hydrogen fuel cell is an electrolyte with perfluorinated sulfonic acid type solid polymer, and platinum/carbon is eelctro-catalyst, and hydrogen is fuel, and air or pure oxygen are oxygenant, has the graphite of gas flow channel or the sheet metal of surface modification etc. and is bipolar plates.Electrode reaction takes place in the hydrogen in the anode catalyst layer under catalyst action:
H
2→2H
++2e (1)
The electronics that this electrode reaction produces arrives negative electrode through external circuit, and hydrogen ion (being proton) then arrives negative electrode through PEM.Oxygen and hydrogen ion and electronics are at the negative electrode generation water that reacts:
1/2O
2+2H
++2e→H
2O (2)
As the core component of PEM hydrogen fuel cell, PEM not only is used for proton conducting and intercepts contacting of fuel and oxygenant, or the supporter of oxygenant.For guaranteeing that fuel cell normally moves, PEM should have excellent chemistry, thermodynamic stability and good proton-conducting, and simultaneously, the film surface will be got well with the catalyzer suitability, can effectively stop gaseous diffusion, intercepts oxygenant and contacts with fuel etc.Usually proton exchange membrane electrode comprises dielectric film, is close to the Catalytic Layer of dielectric film both sides and the diffusion layer in the Catalytic Layer outside.
For popularizing the relevant knowledge of PEM hydrogen fuel cell, make broad masses, particularly students in middle and primary schools have a perceptual knowledge to the PEM hydrogen fuel cell, offered the experiment relevant in the chemistry class of some middle schools and university, but the hydrogen fuel cell demonstration device that is used to demonstrate and operate is not seen also in the prior art with the PEM hydrogen fuel cell.
The utility model content
The technical matters that the utility model solves provides a kind of hydrogen fuel cell demonstration device that can ocular demonstration hydrogen fuel cell principle.
Hydrogen fuel cell demonstration device of the present utility model comprises hydrogen source gas, oxygen source, fuel cell and load, and described hydrogen source gas, oxygen source are communicated with fuel cell respectively, and described fuel cell and described load are electrically connected.
Hydrogen fuel cell demonstration device of the present utility model, wherein, described fuel cell comprises proton exchange membrane electrode, three-ply board and the 4th clamping plate, described three-ply board and the 4th clamping plate are separately positioned on the proton exchange membrane electrode both sides, have first diversion trench of sealing on the described three-ply board, have first air admission hole and first osculum in described first diversion trench, be provided with first in described first diversion trench and adopt electrode, correspondence position on described the 4th clamping plate has second diversion trench of sealing, have second air admission hole and second osculum in described second diversion trench, be provided with second in described second diversion trench and adopt electrode, described first diversion trench, second diversion trench lays respectively at the both sides of proton exchange membrane electrode, described first adopts electrode, second adopts electrode respectively with two of the PEM electrode relative contacts side surfaces, described first air admission hole is communicated with described oxygen source by pipeline, described second air admission hole is communicated with described hydrogen source gas by pipeline, described first osculum and second osculum all communicate with atmosphere, and described first adopts electrode and second adopts electrode and described load electrical connection.
Hydrogen fuel cell demonstration device of the present utility model, wherein, described hydrogen source gas, oxygen source is a water electrolytic cell, described water electrolytic cell comprise the proton exchange electrolytic film, first clamping plate and second clamping plate, described first clamping plate and second clamping plate are separately positioned on described proton exchange electrolytic film both sides, have the first-class tank and second gutter channel on described first clamping plate and second clamping plate, be provided with first electrolysis electrode in the described first-class tank, have first inlet opening and first venthole in the described first-class tank, be provided with second electrolysis electrode in described second gutter channel, have second inlet opening and second venthole in described second gutter channel, described first-class tank, second gutter channel lays respectively at the both sides at the proton exchange electrolytic film, described first electrolysis electrode, second electrolysis electrode exchanges two relative contacts side surfaces of electrolytic film respectively with proton, the water source is all connected by pipeline in described first inlet opening and second inlet opening, described first venthole is communicated with described first air admission hole by pipeline, and described second venthole is communicated with described second air admission hole by pipeline.
Hydrogen fuel cell demonstration device of the present utility model, wherein, described water source is the water storage accumulator unit, described water storage accumulator unit comprises the first water storage cylinder and the second water storage cylinder, described first venthole is communicated with second air hole at first water storage cylinder middle part by pipeline, described first inlet opening is communicated with second limbers of the first water storage cylinder bottom by pipeline, described second venthole is communicated with the four-way pore at second water storage cylinder middle part by pipeline, described second inlet opening is communicated with the four-way water hole of the second water storage cylinder bottom by pipeline, described first air admission hole is communicated with first air hole on the first water storage cylinder top by pipeline, and described second air admission hole is communicated with the 3rd air hole on the second water storage cylinder top by pipeline.
Hydrogen fuel cell demonstration device of the present utility model, wherein, the bottom of the described first water storage cylinder links to each other by pipeline with the bottom of the second water storage cylinder.
Hydrogen fuel cell demonstration device of the present utility model, wherein, described load is bulb, fan, luminotron or music box.
Hydrogen fuel cell demonstration device of the present utility model, wherein, described three-ply board and the 4th clamping plate are fixed together by hinged bolt.
Hydrogen fuel cell demonstration device of the present utility model is intuitively lively, be communicated with fuel cell by oxygen source and hydrogen source gas, provide the hydrogen and the oxygen of reaction needed to it, fuel cell power generation drives loaded work piece, can make the student understand the basic structure and the principle of work of fuel cell intuitively.
Hydrogen fuel cell demonstration device of the present utility model is simple in structure, operation easily, connection between each assembly, assembling, convenient disassembly adopt bolt to connect between the parts of fuel cell, more convenient student dismounting, assembling make that the student is clearer to understand the hydrogen fuel cell principle of work.
Description of drawings
Fig. 1 is the stereographic map of the structural representation of hydrogen fuel cell demonstration device of the present utility model;
Fig. 2 is the vertical view of the structural representation of hydrogen fuel cell demonstration device of the present utility model;
Fig. 3 is the rear view of structural representation of first clamping plate of the water electrolytic cell among Fig. 1;
Fig. 4 is the front view of structural representation of first clamping plate of the water electrolytic cell among Fig. 1;
Fig. 5 is the rear view of structural representation of second clamping plate of the water electrolytic cell among Fig. 1.
Embodiment
Shown in Fig. 1-5, hydrogen fuel cell demonstration device of the present utility model comprises water electrolytic cell 20, water storage accumulator unit 70, fuel cell 60, load 40 and the pedestal 90 as hydrogen, oxygen generator.
In hydrogen fuel cell demonstration device of the present utility model, water electrolytic cell 20 is fixed on the pedestal 90, is used for brine electrolysis to produce hydrogen and oxygen.
Have foursquare first step trough 24 on first clamping plate 22.The shallow slot of first step trough 24 is as the slot electrode of placing proton exchange electrolytic film 99.The bottom center of the deep trouth of first step trough 24 has first circular hole, inserts first wire netting 2413 that first electrolysis electrode, 2411, the first electrolysis electrodes 2411 comprise first shank of screw 2412 and are welded on first shank of screw, 2,412 one ends in first circular hole.First wire netting 2413 is identical with shallow slot shape, the area of first step trough 24, and is positioned on the shallow slot of first step trough 24.The other end of first shank of screw 2412 passes first clamping plate 22, and is fixed on first clamping plate 22 by nut.First electrolysis electrode 2411 is electrolysis electrodes that are used for electrolysis of water electrolytic cell 20.The both sides up and down of first circular hole have first bleeder vent 221 and first through hole 222 on the bottom surface of the deep trouth of first step trough 24.First through hole 222 is as first inlet opening of water electrolytic cell 20.First bleeder vent 221 is positioned at the top of first circular hole, and first through hole 222 is positioned at the below of first circular hole.
The proton exchange electrolytic film 99 of square comprises dielectric film, and what be close to dielectric film is the catalytic specie layer that plates.Dielectric film can adopt perfluoro sulfonic acid membrane.
On second clamping plate 23 with first clamping plate 22 on the opposite position of first step trough 24 to have foursquare second step trough, 25, the second step troughs 25 identical with first step trough, 24 sizes, shape.
On second clamping plate 23 with first clamping plate 22 on the opposite position of first circular hole have second circular hole, in second circular hole, insert second wire netting 2423 that second electrolysis electrode, 2421, the second electrolysis electrodes 2421 comprise second shank of screw 2422 equally and are welded on second shank of screw, 2,422 one ends.Second wire netting 2423 is identical with shallow slot shape, the area of second step trough 25, and is positioned on the shallow slot of second step trough 25.The other end of second shank of screw 2422 passes second clamping plate 23, and is fixed on second clamping plate 23 by nut.Second electrolysis electrode 2421 is electrolysis electrodes that are used for electrolysis of water electrolytic cell 20.On the bottom surface of second step trough 25 with first clamping plate 22 on first bleeder vent, 221 correspondence positions have second bleeder vent 231.On the bottom surface of second step trough 25 with first clamping plate 22 on the correspondence position of first through hole 222 have second through hole 232.Second through hole 232 is as second inlet opening of water electrolytic cell 20.
Proton exchange electrolytic film 99 is positioned in the shallow slot of first step trough, 24 shallow slots on first clamping plate 22 and second step trough 25.First clamping plate 22, second clamping plate 23 are fixedly clamped by bolt 35 and form water electrolytic cell 20.First step trough 24 is relative with second step trough 25, and passes through rubber seal.First bleeder vent 221 is relative with second bleeder vent 231, and first through hole 222 is relative with second through hole 232.First wire netting 2413 and second wire netting 2423 are respectively with two relative contacts side surfaces of proton exchange electrolytic film 99.
The deep trouth of the deep trouth of first step trough 24 and second step trough 25 is respectively as the first-class tank and second gutter channel of water electrolytic cell 20.
Water storage accumulator unit 70 comprise two structures identical and all be fixed in water storage cylinder 73,74 on the pedestal 90.The top of the first water storage cylinder 73 and the second water storage cylinder 74 is respectively by first vent plug 75,76 sealings of second vent plug.
Have first limbers 731 and second limbers 732 on the tube wall of the first water storage cylinder, 73 bottoms.Have on the tube wall on the first water storage cylinder, 73 tops on the tube wall between first air hole, 733, the first air holes 733 and second limbers 732 and have second air hole 734.Second air hole 734 roughly is positioned at the middle part of the first water storage cylinder 73.
Have the 3rd limbers 743 and four-way water hole 744 on the tube wall of the second water storage cylinder, 74 bottoms.Have on the tube wall on the second water storage cylinder, 74 tops on the tube wall between the 3rd air hole 745, the three air holes 745 and the four-way water hole 744 and have four-way pore 746.Four-way pore 746 roughly is positioned at the middle part of the second water storage cylinder 74.
For keeping the first water storage cylinder 73 identical with liquid level in the second water storage cylinder 74, first limbers 731 and the 3rd limbers 743 are connected by pipeline.
First through hole 222 of water electrolytic cell 20 is connected by pipeline as second limbers 732 of first inlet opening and the first water storage cylinder 73.
Second through hole 232 of water electrolytic cell 20 is connected by pipeline as the four-way water hole 744 of second inlet opening and the second water storage cylinder 74.
The fuel cell 60 and water electrolytic cell 20 structures that are fixed on the pedestal 90 are roughly the same, and fuel cell 60 comprises two block-shaped identical square clamping plate and proton exchange membrane electrodes equally.
Proton exchange membrane electrode comprises dielectric film, and what be close to the dielectric film both sides is Catalytic Layer, and the Catalytic Layer outside is a diffusion layer.Dielectric film can adopt perfluoro sulfonic acid membrane.
In hydrogen fuel cell demonstration device of the present utility model, fuel cell 60 is converted into electric energy with the mode of the chemical energy in hydrogen and the oxygen by electrochemical reaction.
The square clamping plate of fuel cell 60 are three-ply board 43 and the 4th clamping plate 44.The structure of three-ply board 43, the 4th clamping plate 44 and first clamping plate is identical.Identical with first clamping plate 22, second clamping plate 23, install first on three-ply board 43 and the 4th clamping plate 44 respectively and adopt electrode, second and adopt electric electrode.First adopts that electrode and second is adopted the structure of electrode, mounting means and first electrolysis electrode 2411, second electrolysis electrode 2421 is identical.
The deep trouth of the four-step groove on the deep trouth of the 3rd step trough on the three-ply board 43 and the 4th clamping plate 44 act as a fuel respectively first diversion trench and second diversion trench of battery 60.First diversion trench and second diversion trench are the gas flows of fuel cell 60.
The 3rd bleeder vent on the three-ply board 43 of fuel cell 60 is connected by pipeline as first air hole 733 of first air admission hole and the first water storage cylinder 73.
The 4th bleeder vent on the 4th clamping plate 44 of fuel cell 60 is connected by pipeline as the 3rd air hole 745 of second air admission hole and the second water storage cylinder 74.
Fourth hole on third through-hole on the three-ply board 43 of fuel cell 60 and the 4th clamping plate 44 is respectively as first osculum and second osculum, and first osculum and second osculum all communicate with atmosphere.
Being fixed in load 40 on the pedestal 90 adopts electrode and second with first of fuel cell 60 respectively by lead and adopts electrode and link to each other.
The load 40 of present embodiment can be bulb, fan, luminotron or music box.
Hydrogen fuel cell demonstration device of the present utility model in use, at first in the first water storage cylinder 73 and the second water storage cylinder 74, inject deionized water or distilled water, deionized water or distilled water first through hole 222 and second through hole 232 by water electrolytic cell 20 under atmospheric effect enters in the water electrolytic cell 20, and is full of the first-class tank and second gutter channel.
The both positive and negative polarity of direct supply is linked to each other energized with first electrolysis electrode 2411, second electrolysis electrode 2421 of water electrolytic cell 20 respectively.Water electrolytic cell 20 is started working, the anode generation water electrolysis reaction of water electrolytic cell 20:
2H
2O→O
2+4H
++4e
-
The oxonium ion that separates forms oxygen, and oxygen is input in the first water storage cylinder 73 by first bleeder vent 221 with current.Proton (the H that anode dissociates out
+), the proton exchange electrolytic film 99 by water electrolytic cell 20 arrives the negative electrode of water electrolytic cells 20, and electronics (e
-) combination, two hydrogen ions are reduced into a hydrogen molecule:
4H
++4e
-→2H
2
The hydrogen that generates is input in the second water storage cylinder 74 with second bleeder vent 231 of current by water electrolytic cell 20.Net reaction is:
2H
2O→O
2+2H
2
The oxygen of the first water storage cylinder 73 enters in the fuel cell 60 by first air hole 733, and the hydrogen of the second water storage cylinder 74 enters in the fuel cell 60 by the 3rd air hole 745.
Hydrogen discharges electronics under the effect of the catalyzer of the proton exchange membrane electrode of fuel cell 60, be oxidized to proton (H
+), electronics is by the positive pole of external circuit arrival fuel cell 60, and proton is with proton hydrate (H
3O
+) mode pass through the side of the positive electrode that proton exchange membrane electrode arrives fuel cell 60, oxygen obtains electronics under the catalyst action of the proton exchange membrane electrode of fuel cell 60, be reduced into hydroxyl OH
-, hydroxyl OH
-With proton hydrate (H
3O
+) in conjunction with generating water.The electrode reaction formula is:
Negative pole: 2H
2+ 4H
2O-4e → 4H
3O
+
Anodal: O
2+ 2H
2O+4e → 4OH
-
4H
3O
++4OH
-→4H
2O
The overall reaction equation is: O
2+ 2H
2→ 2H
2O
The water that reaction generates flows out from first osculum and second osculum of fuel cell 60.
In the above-mentioned reaction, electronics provides electric energy to load 40 exactly by the process of external circuit, drives the process of load 40.
The above embodiment only is that preferred implementation of the present utility model is described; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (9)
1. a hydrogen fuel cell demonstration device comprises hydrogen source gas, oxygen source, fuel cell (60) and load (40), and described hydrogen source gas, oxygen source are communicated with fuel cell (60) respectively, and described fuel cell (60) and described load (40) are electrically connected.
2. hydrogen fuel cell demonstration device as claimed in claim 1, it is characterized in that, described fuel cell (60) comprises proton exchange membrane electrode, three-ply board (43) and the 4th clamping plate (44), described three-ply board (43) and the 4th clamping plate (44) are separately positioned on the proton exchange membrane electrode both sides, have first diversion trench of sealing on the described three-ply board (43), have first air admission hole and first osculum in described first diversion trench, be provided with first in described first diversion trench and adopt electrode, correspondence position on described the 4th clamping plate (44) has second diversion trench of sealing, have second air admission hole and second osculum in described second diversion trench, be provided with second in described second diversion trench and adopt electrode, described first diversion trench, second diversion trench lays respectively at the both sides of proton exchange membrane electrode, described first adopts electrode, second adopts electrode respectively with two of the PEM electrode relative contacts side surfaces, described first air admission hole is communicated with described oxygen source by pipeline, described second air admission hole is communicated with described hydrogen source gas by pipeline, described first osculum and second osculum all communicate with atmosphere, and described first adopts electrode and second adopts electrode and described load (40) electrical connection.
3. hydrogen fuel cell demonstration device as claimed in claim 2, it is characterized in that, described hydrogen source gas, oxygen source is water electrolytic cell (20), described water electrolytic cell (20) comprise proton exchange electrolytic film (99), first clamping plate (22) and second clamping plate (23), described first clamping plate (22) and second clamping plate (23) are separately positioned on described proton exchange electrolytic film (99) both sides, have the first-class tank and second gutter channel on described first clamping plate (22) and second clamping plate (23), be provided with first electrolysis electrode (2411) in the described first-class tank, have first inlet opening and first venthole in the described first-class tank, be provided with second electrolysis electrode (2421) in described second gutter channel, have second inlet opening and second venthole in described second gutter channel, described first-class tank, second gutter channel lays respectively at the both sides in proton exchange electrolytic film (99), described first electrolysis electrode (2411), second electrolysis electrode (2421) exchanges two relative contacts side surfaces of electrolytic film (99) respectively with proton, the water source is all connected by pipeline in described first inlet opening and second inlet opening, described first venthole is communicated with described first air admission hole by pipeline, and described second venthole is communicated with described second air admission hole by pipeline.
4. hydrogen fuel cell demonstration device as claimed in claim 3, it is characterized in that, described water source is water storage accumulator unit (70), described water storage accumulator unit (70) comprises the first water storage cylinder (73) and the second water storage cylinder (74), described first venthole is communicated with second air hole (734) at the first water storage cylinder (73) middle part by pipeline, described first inlet opening is communicated with second limbers (732) of first water storage cylinder (73) bottom by pipeline, described second venthole is communicated with the four-way pore (746) at the second water storage cylinder (74) middle part by pipeline, described second inlet opening is communicated with the four-way water hole (744) of second water storage cylinder (74) bottom by pipeline, described first air admission hole is communicated with first air hole (733) on first water storage cylinder (73) top by pipeline, and described second air admission hole is communicated with the 3rd air hole (745) on second water storage cylinder (74) top by pipeline.
5. hydrogen fuel cell demonstration device as claimed in claim 4 is characterized in that, the bottom of the described first water storage cylinder (73) links to each other by pipeline with the bottom of the second water storage cylinder (74).
6. hydrogen fuel cell demonstration device as claimed in claim 5 is characterized in that, described load (40) is bulb, fan, luminotron or music box.
7. hydrogen fuel cell demonstration device as claimed in claim 6 is characterized in that, described three-ply board (43) and the 4th clamping plate (44) are fixed together by hinged bolt.
8. hydrogen fuel cell demonstration device as claimed in claim 7 is characterized in that described proton exchange membrane electrode comprises dielectric film, and what be close to described dielectric film both sides is Catalytic Layer, and the described Catalytic Layer outside is a diffusion layer.
9. hydrogen fuel cell demonstration device as claimed in claim 8 is characterized in that, described dielectric film adopts perfluoro sulfonic acid membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202739176U CN201732505U (en) | 2010-07-28 | 2010-07-28 | Hydrogen fuel cell demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202739176U CN201732505U (en) | 2010-07-28 | 2010-07-28 | Hydrogen fuel cell demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201732505U true CN201732505U (en) | 2011-02-02 |
Family
ID=43523662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202739176U Expired - Fee Related CN201732505U (en) | 2010-07-28 | 2010-07-28 | Hydrogen fuel cell demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201732505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157769A (en) * | 2015-04-01 | 2016-11-23 | 普教装备产业股份有限公司 | Hydrogen Energy experimental provision |
-
2010
- 2010-07-28 CN CN2010202739176U patent/CN201732505U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106157769A (en) * | 2015-04-01 | 2016-11-23 | 普教装备产业股份有限公司 | Hydrogen Energy experimental provision |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20120728 |