CN2603985Y - Body internal energy variation demonstrator - Google Patents
Body internal energy variation demonstrator Download PDFInfo
- Publication number
- CN2603985Y CN2603985Y CN 03201975 CN03201975U CN2603985Y CN 2603985 Y CN2603985 Y CN 2603985Y CN 03201975 CN03201975 CN 03201975 CN 03201975 U CN03201975 U CN 03201975U CN 2603985 Y CN2603985 Y CN 2603985Y
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- CN
- China
- Prior art keywords
- bottle
- air
- internal energy
- temperature
- change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
An internal energy change demonstration instrument is installed at the bottle wall of its sealing bottle with a sensitive thermometer whose one end extends to the bottle, a gas needle, a rubber piston external end and a deflation tube connected with a deflation trigger. When in aeration, the external force stresses on the air in the bottle to increase the air internal energy and improve the temperature; When in deflation, the air in the bottle stresses on the rubber piston in the expansion to reduce the air internal energy and decrease the temperature. The change of the temperature in the bottle can be displayed by the sensitive thermometer, so the utility model can demonstrates the change situation of the object internal energy.
Description
The utility model relates to a kind of instrument that can change in the object of demonstrating, and belongs to the teaching aid field.
At present, the teaching of high school physics calorifics has the content of courses that can change the aspect in the object, such as the ignition principle of diesel engine, hot machine acting principle etc.Though ready-made hot machine is arranged in the reality, owing in the hot machine sensitive thermometer is not set, its thermal change of inconvenient observation of students, also teachers ' teaching also is not easy to a hot machine is moved in the classroom.Therefore, manufacturing and designing in a kind of object the change demonstration instrument to be necessary.
The purpose of this utility model is that energy change demonstration instrument in a kind of object will be provided, and it can demonstrate " external force is done work to air, and air internal energy increase, temperature are risen ".Also can demonstrate " externally do work during air expansion, interior can reducing, temperature reduces ".
The purpose of this utility model is achieved in that with organic glass does an air-tight bottle, on the bottle wall of air-tight bottle sensitive thermometer, air tube is installed, and machine is removed in bleeder pipe, rubber stopper and venting.When inflating in air-tight bottle with inflator, external force increases a bottle interior air internal energy to the acting of the air in the bottle, and temperature raises in the bottle, can be shown by sensitive thermometer.Pulling after venting removes machine, the air in the air-tight bottle penetrates rubber stopper.Because air has been done merit to rubber stopper when expanding, interior can the minimizing, humidity just reduces.This also can show by sensitive thermometer.Therefore, just realized demonstration purpose.
Owing to take such scheme, can demonstrate the situation of change of air internal energy intuitively, thereby bring many convenience can for middle school physics calorifics teaching.This is a good effect of the present utility model.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the longitudinal profile structural map of the utility model embodiment.
Among the figure 1, air-tight bottle 2, sensitive thermometer 3, air tube 4, bleeder pipe 5, venting remove machine 6, rubber stopper
In the embodiment shown in fig. 1, an end of sensitive thermometer (2), air tube (3), bleeder pipe (4) extend in the inner chamber of air-tight bottle (1), and dresses up one closely with the bottle wall of air-tight bottle (1).Be plugged with a rubber stopper (6) in the bleeder pipe (4), the outer end is adorned a venting and is removed machine (5), when inflating toward air-tight bottle (1) is interior by air tube (3) with inflator, bottle internal gas pressure rising temperature also raises, can be by temperature variation in sensitive thermometer (2) display bottle. during venting, rubber stopper (6) is reduced by temperature in the gas ejaculation bottle in the bottle, also can be shown by sensitive thermometer (2).
Claims (1)
1. can the change demonstration instrument in the object, it is characterized in that: on the bottle wall of its air-tight bottle, be equipped with an end reach a sensitive thermometer in the bottle, air tube with in have the rubber stopper outer end to be connected to exit the bleeder pipe of the machine of removing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03201975 CN2603985Y (en) | 2003-01-12 | 2003-01-12 | Body internal energy variation demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03201975 CN2603985Y (en) | 2003-01-12 | 2003-01-12 | Body internal energy variation demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2603985Y true CN2603985Y (en) | 2004-02-18 |
Family
ID=34157674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03201975 Expired - Fee Related CN2603985Y (en) | 2003-01-12 | 2003-01-12 | Body internal energy variation demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2603985Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446438A (en) * | 2010-10-15 | 2012-05-09 | 柳延东 | Teaching experimental equipment for converting mechanical energy into internal energy |
| CN103050035A (en) * | 2012-12-11 | 2013-04-17 | 安徽师范大学 | Refrigeration principle type display device |
-
2003
- 2003-01-12 CN CN 03201975 patent/CN2603985Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446438A (en) * | 2010-10-15 | 2012-05-09 | 柳延东 | Teaching experimental equipment for converting mechanical energy into internal energy |
| CN103050035A (en) * | 2012-12-11 | 2013-04-17 | 安徽师范大学 | Refrigeration principle type display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |