CN203397590U - Demonstration board type teaching aid for hydrogen-oxygen fuel cell - Google Patents
Demonstration board type teaching aid for hydrogen-oxygen fuel cell Download PDFInfo
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- CN203397590U CN203397590U CN201320538047.4U CN201320538047U CN203397590U CN 203397590 U CN203397590 U CN 203397590U CN 201320538047 U CN201320538047 U CN 201320538047U CN 203397590 U CN203397590 U CN 203397590U
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- fuel cell
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- demonstration board
- hydrogen
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Abstract
Provided is a demonstration board type teaching aid for hydrogen-oxygen fuel cell. The demonstration board type teaching aid includes a Y-shape three-way pipe (1), a conduit (2) with a piston, a porous carbon rod (3), an emulsion tube (4), a common tunnel (5), a sensitive galvanometer (6), a music greeting card (7), a diode (8), a buzzer (9), a direct current power supply (10), and a multidirectional switch (11). The demonstration board type teaching aid is characterized in that: the multidirectional switch (11) is open, a pointer of the sensitive galvanometer (6) deflects, the diode emits light, and the buzzer (9) rings. In the demonstration board type teaching aid, a 16 V direct current power supply is used to electrolyze Na2SO4 solution, so that a fuel cell experiment for stored gas can be finished in just 3 min. A process of construct an experiment device is avoided if a teacher use the demonstration board type teaching aid in classroom teaching, so that time is saved, and experiment phenomena can be observed clearly by the whole class.
Description
Technical field
The utility model relates to just, senior chemistry classroom experiment teaching aid, helps the composition of students ' understanding water, and perception hydrogen-oxygen fuel cell, understands the principles of chemistry in the application in the energy and high and new technology field.
Background technology
Brine electrolysis and hydrogen-oxygen fuel cell be just, senior chemistry course chemical energy and the electric energy important content in mutually transforming.It is green energy resource that teaching material first allows student understand Hydrogen Energy at Junior, and the Conversion of Energy mode while understanding chemical cell (comprising fuel cell) electric discharge, lays the foundation for further learn the principle of work of fuel cell to senior high school period.
Known a kind of hydrogen-oxygen fuel cell panel formula teaching aid is to fill saturated Na
2sO
4in the small beaker of solution, insert Y tube, and mix graphite electrode at Y tube two ends, by electrolysis by H
2and O
2be stored in respectively Y tube two ends, then observe LED lighting situation with wire connection two ends graphite electrode and light emitting diode, energising.After test, find: Y tube can complete fuel cell experiment, and volume is little, the material-saving that saves time, and can separate gaseous product is ingenious, still, there are problems in the microminiaturization of this device.For example: (1), because Y tube volume is little, the gas flow that can store is limited, and generation current intensity is little, can only detect with sensitive galvanometer, and the luminescence phenomenon of light emitting diode is not obvious, be not easy to observe.(2) because the bore of Y tube is little, be difficult to find the rubber stopper of coupling.By exposing one section of pencil-lead after pencil skiving, as electrode, test, but there is difficulty in the sealing of the mouth of pipe.(3) high to device sealing requirements to the operation of filling electrolytic solution in Y tube, and complicated operation, difficulty, electrolytic solution also can be stained with to hand.(4) there is no fixedly Y tube of suitable clamping instrument, during experiment, Y tube can only be placed in beaker, install lack of standardization.
Summary of the invention
For above deficiency, the purpose of this utility model is to provide a kind of hydrogen-oxygen fuel cell panel formula teaching aid, is material, the size of electrode surface area, generation H from electrode
2and O
2how many equal angles of amount have been launched further test, to obtain larger strength of current.
The technical solution of the utility model is achieved in the following ways: a kind of hydrogen-oxygen fuel cell panel formula teaching aid, by breeches pipe, conduit with piston, porous carbon-point, emulsion tube, common funnel, sensitive galvanometer, music greeting card, diode, hummer, direct supply and multi-direction switch form, with wire respectively by porous carbon-point and the music greeting card at breeches pipe two ends, sensitive galvanometer is connected, with the conduit of piston, be inserted in respectively two ends of breeches pipe, common funnel is connected to the lower end of breeches pipe by emulsion tube, multi-direction switch is controlled the switching of direct supply, it is characterized in that: described multi-direction switch is opened, sensitive galvanometer needle deflection, LED lighting, hummer ring.
Described porous carbon-point 3 is the thick diameter multi-hole carbon-point of diameter 1.5cm.
Described breeches pipe 1 is at one section of glass arm of U-shaped pipe bottom sintering, forms breeches pipe.
The utility model structure, adopts the saturated Na of 16V direct supply electrolysis
2sO
4solution, only needs electrolysis 3min left and right, and the gas flow of storage can complete fuel cell experiment.Teacher uses this teaching aid at classroom teaching, can save the process of building experimental provision, saves time, and can allow again the full student of class observe clearly experimental phenomena.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of hydrogen-oxygen fuel cell panel formula teaching aid, by breeches pipe 1, conduit 2 with piston, porous carbon-point 3, emulsion tube 4, common funnel 5, sensitive galvanometer 6, music greeting card 7, diode 8, hummer 9, direct supply 10 and multi-direction switch 11 form, with wire respectively by the porous carbon-point at breeches pipe 1 two ends 3 and music greeting card 7, sensitive galvanometer 6 is connected, with the conduit 2 of piston, be inserted in respectively two ends of breeches pipe 1, common funnel 5 is connected to the lower end of breeches pipe 1 by emulsion tube 4, multi-direction switch 11 is controlled energising or the power-off of direct supply 10, described multi-direction switch is opened, sensitive galvanometer 6 needle deflection, diode 8 is luminous, hummer 9 rings.Porous carbon-point 3 is the thick diameter multi-hole carbon-point of diameter 1.5cm.Breeches pipe 1 is at one section of glass arm of U-shaped pipe bottom sintering, forms breeches pipe.
The utility model, repeatedly finds after teaching practice: the effect of be applied to just, high school chemical experiment being imparted knowledge to students is obvious.It can merge " chemical experiment " and " application of principle " mutually, makes that student is with keen interest to experimental phenomena, enthusiasm is surging, and experimental principle is full of and probes into wish, vivider, firm to mastery of knowledge.Can also allow students experience to chemical science, serve the practicality of human social development simultaneously.
Claims (3)
1. a hydrogen-oxygen fuel cell panel formula teaching aid, by breeches pipe (1), conduit (2) with piston, porous carbon-point (3), emulsion tube (4), common funnel (5), sensitive galvanometer (6), music greeting card (7), diode (8), hummer (9), direct supply (10) and multi-direction switch (11) form, with wire respectively by the porous carbon-point (3) at breeches pipe (1) two ends and music greeting card (7), sensitive galvanometer (6) is connected, with the conduit (2) of piston, be inserted in respectively two ends of breeches pipe (1), common funnel (5) is connected to the lower end of breeches pipe (1) by emulsion tube (4), multi-direction switch (11) is controlled the switching of direct supply (10), it is characterized in that: described multi-direction switch (11) is opened, sensitive galvanometer (6) needle deflection, LED lighting, hummer (9) ring.
2. a kind of hydrogen-oxygen fuel cell panel formula teaching aid according to claim 1, is characterized in that: described porous carbon-point (3) is the thick diameter multi-hole carbon-point of diameter 1.5cm.
3. a kind of hydrogen-oxygen fuel cell panel formula teaching aid according to claim 1, is characterized in that: described breeches pipe (1) is at one section of glass arm of U-shaped pipe bottom sintering, forms breeches pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538047.4U CN203397590U (en) | 2013-09-02 | 2013-09-02 | Demonstration board type teaching aid for hydrogen-oxygen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320538047.4U CN203397590U (en) | 2013-09-02 | 2013-09-02 | Demonstration board type teaching aid for hydrogen-oxygen fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203397590U true CN203397590U (en) | 2014-01-15 |
Family
ID=49909108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320538047.4U Expired - Fee Related CN203397590U (en) | 2013-09-02 | 2013-09-02 | Demonstration board type teaching aid for hydrogen-oxygen fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203397590U (en) |
-
2013
- 2013-09-02 CN CN201320538047.4U patent/CN203397590U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |