CN205984027U - Novel water boiling experiment demonstration device - Google Patents
Novel water boiling experiment demonstration device Download PDFInfo
- Publication number
- CN205984027U CN205984027U CN201620625449.1U CN201620625449U CN205984027U CN 205984027 U CN205984027 U CN 205984027U CN 201620625449 U CN201620625449 U CN 201620625449U CN 205984027 U CN205984027 U CN 205984027U
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- CN
- China
- Prior art keywords
- flask
- water boiling
- beaker
- alcohol burner
- demonstration device
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- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of the physical teaching experimental instruments technique and specifically relates to a novel water boiling experiment demonstration device, including base, alcohol burner, flask, thermometer, beaker, barometer, voltage limiting valve, inflator, put alcohol burner and beaker on the base, the base left side is equipped with 1 spinal branch vaulting pole, and the cover has 2 sliding sleeves on the bracing piece, and sliding sleeve one side is equipped with fixation nut, and the sliding sleeve opposite side is equipped with the dead lever, is equipped with asbestos gauge on the dead lever of alcohol burner top, the last flask of having put of asbestos gauge, and the flask passes through the fixation clamp at bottleneck position to be fixed on the dead lever. The utility model has the advantages of reasonable design, easy operation is convenient, and demonstration that can image directly perceived goes out the relation of water boiling point and pressure to can carry out the measurement of accurate water boiling point temperature with atmospheric pressure value, be convenient for carry on graphic analyses and calculation, improve water boiling experiment demonstration's teaching effects greatly.
Description
Technical field
This utility model is related to physics teaching experiment technique with the apparatus field, especially a kind of new boiling water experimental demonstration dress
Put.
Background technology
At present, in physics teaching in secondary school experiment, carry out boiling water experimental demonstration when, typically use in beaker plus
Water, reuses alcohol burner and is heated, and makes boiling water and uses thermometer measure boiling point, and the boiling phenomenon to carry out observing water is drilled
Show.And need to be operated it is necessary to additionally use flask during the relation demonstrating boiling point and the air pressure of water, first by inside flask
Water is heated to boiling, stops heating, when water retention defervescence is risen in flask, pours flask with cold water it was observed that water has seethed with excitement again
Come, the pressure obtaining in flask reduces, the rule of the boiling point reduction of water, the atmospheric pressure value when doing this lecture experiment, in flask
Can not intuitively show, during boiling water, temperature height does not measure display simultaneously yet, lead to student to the boiling point of water and pressure phase
The rule understanding of association is difficult, and greatly reduces the teaching demonstration effect of boiling water experiment.
Utility model content
The purpose of this utility model is to overcome above-mentioned technical disadvantages to provide a kind of new boiling water experimental demonstration device.
This utility model solve technical problem adopt technical scheme be：A kind of new boiling water experimental demonstration device, bag
Include base, alcohol burner, flask, thermometer, beaker, barometer, pressure limiting valve, inflator, described base be placed with alcohol burner and beaker,
Chassis left side is provided with 1 support bar, and support bar is cased with 2 sliding sleeves, and sliding sleeve side is provided with fixing nut, and sliding sleeve opposite side is provided with
Fix bar, the fix bar above alcohol burner is provided with asbestos gauge, and asbestos gauge is placed with flask, and flask passes through the fixation at bottleneck position
Folder is fixed in fix bar.Using asbestos gauge during alcohol burner heating, flask can be made to be heated evenly, prevent flask local temperature mistake
High and lead to flask to burst, sliding sleeve can slide up and down, and is easy to adjust fix bar position.
Described flask is provided with sealing-plug, and sealing-plug is inserted with thermometer and airway, and airway is provided with barometer.Temperature
Water temperature can easily be tested by degree meter, and barometer can test air pressure inside value, be easy to record data during experiment.
Described beaker is provided with bowl cover, and bowl cover is inserted with airway and exhaustor, is provided with pressure limiting valve, pressure limiting valve in the middle of bowl cover
On be placed with counterweight, exhaustor is provided with valve, and exhaustor one end is provided with inflator.Different quality can be put as needed on pressure limiting valve
Counterweight to be controlled to the air pressure in beaker, when the air pressure in beaker reaches limit value, pressure limiting valve can be put by jack-up
Go out portion gas, realize the control to air pressure inside.Can need to open the valve on exhaustor according to experiment, be carried out using inflator
Pumping or inflation, reach the purpose that air pressure inside is decreased or increased.
This utility model is had an advantageous effect in that：This utility model reasonable in design, simple to operation, permissible
The demonstration of visual pattern goes out the relation of water boiling point and pressure, and can carry out the measurement of accurate water boiling temperature and atmospheric pressure value, just
In carrying out graphic analyses and calculating, substantially increase the teaching efficiency of boiling water experimental demonstration.
Brief description
Accompanying drawing 1 is structural representation of the present utility model.
Specific embodiment
1 pair of this utility model is described below below in conjunction with the accompanying drawings.
As shown in figure 1, this utility model include base 1, alcohol burner 7, flask 8, thermometer 11, beaker 14, barometer 13,
Pressure limiting valve 16, inflator 20, described base 1 is placed with alcohol burner 7 and beaker 14, is provided with 1 support bar 2, support bar on the left of base 1
It is cased with 2 sliding sleeves 3, sliding sleeve 3 side is provided with fixing nut 4, sliding sleeve 3 opposite side is provided with fix bar 5, consolidating above alcohol burner 7 on 2
Fixed pole 5 is provided with asbestos gauge 6, and asbestos gauge 6 is placed with flask 8, and flask 8 is fixed on fix bar 5 by the fixation clamp 9 at bottleneck position
On.Using asbestos gauge 6 during alcohol burner 7 heating, flask 8 can be made to be heated evenly, prevent flask 8 local temperature too high and lead to burn
Bottle 8 bursts, and sliding sleeve 3 can slide up and down, and is easy to adjust fix bar 5 position.
Described flask 8 is provided with sealing-plug 10, sealing-plug 10 is inserted with thermometer 11 and airway 12, airway 12 sets
There is barometer 13.Thermometer 11 can easily test water temperature, and barometer 13 can test air pressure inside value, is easy to note during experiment
Record data.
Described beaker 14 is provided with bowl cover 15, bowl cover 15 is inserted with airway 12 and exhaustor 18, is provided with the middle of bowl cover 15
Pressure limiting valve 16, pressure limiting valve 16 is placed with counterweight 17, and exhaustor 18 is provided with valve 19, and exhaustor 18 one end is provided with inflator 20.Limit
The counterweight 17 of different quality can be put on pressure valve 16, to be controlled to the air pressure in beaker 14, when beaker 14 as needed
When interior air pressure reaches limit value, pressure limiting valve 16 can be released portion gas by jack-up, realizes the control to air pressure inside.Can basis
Experiment needs to open the valve 19 on exhaustor 18, is evacuated using inflator 20 or inflates, reaches and internal gas is decreased or increased
The purpose of pressure.
During experiment, the counterweight 17 of different quality can be selected to be placed on pressure limiting valve 16 according to the different atmospheric pressure values of experiment setting,
Then heated using alcohol burner 7, when the water is boiling the numerical value of recording thermometer 11 and barometer 13, when testing simultaneously, can
Need to open the valve 19 on exhaustor 18 according to experiment, be evacuated using inflator 20 or inflate, internal gas is decreased or increased
Press and to observe the change of water boiling point.
Claims (3)
1. a kind of new boiling water experimental demonstration device, including base, alcohol burner, flask, thermometer, beaker, barometer, pressure limiting
Valve, inflator it is characterised in that：Alcohol burner and beaker are placed with described base, chassis left side is provided with 1 support bar, on support bar
It is cased with 2 sliding sleeves, sliding sleeve side is provided with fixing nut, sliding sleeve opposite side is provided with fix bar, and the fix bar above alcohol burner sets
There is asbestos gauge, asbestos gauge is placed with flask, flask is fixed in fix bar by the fixation clamp at bottleneck position.
2. a kind of new boiling water experimental demonstration device according to claim 1 it is characterised in that：Described flask is provided with
Sealing-plug, sealing-plug is inserted with thermometer and airway, and airway is provided with barometer.
3. a kind of new boiling water experimental demonstration device according to claim 1 it is characterised in that：Described beaker is provided with
Bowl cover, bowl cover is inserted with airway and exhaustor, is provided with pressure limiting valve in the middle of bowl cover, pressure limiting valve is placed with counterweight, exhaustor sets
There is valve, exhaustor one end is provided with inflator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625449.1U CN205984027U (en) | 2016-06-23 | 2016-06-23 | Novel water boiling experiment demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620625449.1U CN205984027U (en) | 2016-06-23 | 2016-06-23 | Novel water boiling experiment demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205984027U true CN205984027U (en) | 2017-02-22 |
Family
ID=58021497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620625449.1U Expired - Fee Related CN205984027U (en) | 2016-06-23 | 2016-06-23 | Novel water boiling experiment demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205984027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630079A (en) * | 2018-05-16 | 2018-10-09 | 贵州大学 | A kind of chemistry fountain experiment device |
| CN108961958A (en) * | 2018-08-02 | 2018-12-07 | 徐亚伟 | A kind of boiling experimental provision for boiling and steam power is demonstrated |
-
2016
- 2016-06-23 CN CN201620625449.1U patent/CN205984027U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108630079A (en) * | 2018-05-16 | 2018-10-09 | 贵州大学 | A kind of chemistry fountain experiment device |
| CN108630079B (en) * | 2018-05-16 | 2023-07-07 | 贵州大学 | Chemical fountain experimental device |
| CN108961958A (en) * | 2018-08-02 | 2018-12-07 | 徐亚伟 | A kind of boiling experimental provision for boiling and steam power is demonstrated |
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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: 20170222 Termination date: 20170623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |