CN203179355U - Demonstration instrument for experiment of water boiling - Google Patents
Demonstration instrument for experiment of water boiling Download PDFInfo
- Publication number
- CN203179355U CN203179355U CN 201320153169 CN201320153169U CN203179355U CN 203179355 U CN203179355 U CN 203179355U CN 201320153169 CN201320153169 CN 201320153169 CN 201320153169 U CN201320153169 U CN 201320153169U CN 203179355 U CN203179355 U CN 203179355U
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- Prior art keywords
- test tube
- water
- experiment
- thermometer
- demonstration instrument
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Abstract
The utility model discloses a demonstration instrument for an experiment of water boiling. The demonstration instrument for the experiment of water boiling comprises a bracket, a supporting arm, an alcohol lamp, a test tube and a thermometer, wherein the bracket comprises a bottom plate, a vertical bar is fixed on the bottom plate, the vertical bar is provided with the supporting arm capable of sliding up and down along the vertical bar, the test tube is clamped at the front end of the supporting arm, an opening of the test tube is provided with a foam tube plug with a gap at the periphery, and the thermometer is fixed in the test tube through the foam tube plug. Water in the test tube is heated by using the alcohol lamp, obvious noises are produced along with the gradual rising of the water temperature, bubbles emerge from the bottom part of the test tube and move upward obviously, the thermometer measures that the temperature of the boiled water reaches 100 DEG C, and the temperature is kept unchanged. The demonstration instrument disclosed by the utility model has the advantages of short experiment time, less fuel consumption and visual demonstration.
Description
Technical field
The utility model relates to a kind of teaching and experiment equipment, especially relates to a kind of boiling experimental demonstration instrument of water.
Background technology
Water boiling experiment is a very important experiment in " states of matter variation " chapter.Method design to this experiment in the current teaching materials is to utilize spirit lamp to be heating container as heating tool, beaker.But in practical operation, there is following problem: the one, experimental period is long.The test method of introducing in the teaching material with spirit lamp heating small beaker the time, needs pad to go up asbestos gauge, and it is slower to make that so the interior water of small beaker is heated, and heat time heating time is long.The 2nd, consume fuel is many.Experimental assembly according to teaching material experimentizes, and heat scatters and disappears more, makes that not only heat time heating time is long, and has increased the consumption of alcohol, causes unnecessary waste.The 3rd, phenomenon is obvious inadequately before and after the boiling.By repeatedly experiment, we find, do water boiling experiment according to the experimental technique of textbook, are difficult to observe the experimental phenomena described in the teaching material.When doing heating container with beaker, asbestos gauge on pad under the beaker, heating is not slowly all heard sound before and after the boiling; Do not see that after water boiling a large amount of bubbles emerges yet.
Summary of the invention
It is short that the purpose of this utility model provides a kind of experimental period, and consume fuel is few, the boiling experimental demonstration instrument of the water of demonstrating visual.
The purpose of this utility model is achieved through the following technical solutions, the boiling experimental demonstration instrument of this water comprises support, sway brace, spirit lamp, test tube, thermometer, described support comprises a base plate, fix a montant on the described base plate, described montant is provided with a sway brace that can slide up and down along montant, a test tube in the front end clamping of described sway brace, described spirit lamp is placed on the base plate and is positioned at the bottom of test tube, described test tube opening part is provided with the foam pipe close of a marginal belt breach, and described thermometer is fixed in vitro by the foam pipe close.
Heat invisible spectro water with spirit lamp, in heating process, water temperature raises gradually, sound is clearly arranged, bubble is obvious by the emerge phenomenon that moves upward of test tube bottom, records boiling back water temperature with thermometer and reaches 100 degree, and temperature is remained unchanged, have a large amount of bubbles to emerge, vaporization phenomenon is very violent.
The beneficial effects of the utility model:
(1) the experiment time spent is short.Compare with original experiment, after the application test tube is made heating container, obviously shorten used heat time heating time by beginning to be heated to boiling.
(2) experimental phenomena is obvious.In heating process, invisible spectro water not only has tangible sound, also has bubble directly perceived by the emerge phenomenon that moves upward of test tube bottom.
(3) fuel consumption reduces greatly.Also significantly reduce the consumption of alcohol when shortening heat time heating time.
Description of drawings
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing
Fig. 1 is synoptic diagram of the present utility model
Among the figure: 1, support 2, sway brace 3, spirit lamp 4, test tube 5, thermometer 6, base plate 7, montant 8, foam pipe close
Embodiment
As shown in Figure 1, the boiling experimental demonstration instrument of this water comprises support 1, sway brace 2, spirit lamp 3, test tube 4, thermometer 5, support 1 comprises a base plate 6, fix a montant 7 on the base plate 6, montant 7 is provided with a sway brace 2 that can slide up and down along montant, and a test tube 4 in the front end clamping of sway brace 2, and spirit lamp 3 is placed on the base plate 6 and is positioned at the bottom of test tube 4, test tube 4 opening parts are provided with the foam pipe close 8 of a marginal belt breach, and thermometer 5 is fixed in the test tube 4 by foam pipe close 8.With the water in the spirit lamp 3 heating test tubes 4, in heating process, water temperature raises gradually, sound is clearly arranged, bubble is obvious by the emerge phenomenon that moves upward of test tube 4 bottoms, records boiling back water temperature with thermometer 5 and reaches 100 degree, and temperature is remained unchanged, have a large amount of bubbles to emerge, vaporization phenomenon is very violent.
Claims (1)
1. the boiling experimental demonstration instrument of a water, it is characterized in that this demonstrator comprises support, sway brace, spirit lamp, test tube, thermometer, described support comprises a base plate, fix a montant on the described base plate, described montant is provided with a sway brace that can slide up and down along montant, a test tube in the front end clamping of described sway brace, described spirit lamp is placed on the base plate and is positioned at the bottom of test tube, described test tube opening part is provided with the foam pipe close of a marginal belt breach, and described thermometer is fixed in vitro by the foam pipe close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153169 CN203179355U (en) | 2013-03-01 | 2013-03-01 | Demonstration instrument for experiment of water boiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153169 CN203179355U (en) | 2013-03-01 | 2013-03-01 | Demonstration instrument for experiment of water boiling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179355U true CN203179355U (en) | 2013-09-04 |
Family
ID=49076024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320153169 Expired - Fee Related CN203179355U (en) | 2013-03-01 | 2013-03-01 | Demonstration instrument for experiment of water boiling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203179355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392645A (en) * | 2014-12-13 | 2015-03-04 | 吴学涛 | Combined equipment for researching ice melting point, water boiling point and specific heat capacity of liquid |
-
2013
- 2013-03-01 CN CN 201320153169 patent/CN203179355U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104392645A (en) * | 2014-12-13 | 2015-03-04 | 吴学涛 | Combined equipment for researching ice melting point, water boiling point and specific heat capacity of liquid |
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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: 20130904 Termination date: 20140301 |