CN203982662U - A kind of foam annihilator demonstrating experiment device - Google Patents
A kind of foam annihilator demonstrating experiment device Download PDFInfo
- Publication number
- CN203982662U CN203982662U CN201420444863.3U CN201420444863U CN203982662U CN 203982662 U CN203982662 U CN 203982662U CN 201420444863 U CN201420444863 U CN 201420444863U CN 203982662 U CN203982662 U CN 203982662U
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- bottle
- glass bar
- test tube
- experiment device
- bottle cap
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Abstract
The utility model discloses a kind of foam annihilator demonstrating experiment device, comprise bottle, bottle cap, test tube and glass bar, bottle is connected by spiral lamination with bottle cap, test tube is vertically placed in described bottle body bottom, one end of glass bar is placed in test tube bottom, the other end of glass bar is placed in bottle cap below, and the length of glass bar equates with the height of bottle, and the top of bottle bottle is provided with a circular hole.The utlity model has experimental provision simple, turn waste into wealth, the feature such as the easy to operate and experimental phenomena of experimentation is obvious, vivid demonstration fire extinguisher fire-fighting principle, experimental drug consumption is few, phenomenon is obvious, good demonstration effect.
Description
Technical field
The utility model relates to demonstration of experiment teaching field, a kind of middle school, especially a kind of foam annihilator demonstrating experiment device.
Background technology
Flame snuffer is one of fireproofing installation common in daily life, can not burn and can not support the character of burning according to carbon dioxide, people have developed various carbon-dioxide extinguishers, have foam annihilator, dry-chemical extinguisher and liquid CO 2 flame snuffer.In the device of former simple and easy flame snuffer, the concentration of sodium carbonate and concentrated hydrochloric acid, consumption will be controlled proper.When concentration is large, measure when many, in bottle, pressure is excessive, gas may make the plug on suction flask go out, and even has the danger that suction flask blast occurs; Concentration is little, amount is when few, and pressure in bottle is too little is difficult to eject foam, and experimental phenomena is not obvious again.Two kinds of situations often can cause lecture experiment failure, have reduced student's experimental interests and mood, affect teaching efficiency.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, and a kind of foam annihilator demonstrating experiment device is provided, it have experimental provision simple, turn waste into wealth, the feature such as the easy to operate and experimental phenomena of experimentation is obvious.
For achieving the above object, the utility model adopts following technical proposals:
A kind of foam annihilator demonstrating experiment device, comprise bottle, bottle cap, test tube and glass bar, described bottle is connected by spiral lamination with described bottle cap, described test tube is vertically placed in described bottle body bottom, one end of described glass bar is placed in described test tube bottom, the other end of described glass bar is placed in described bottle cap below, and the length of described glass bar equates with the height of described bottle, and the top of described bottle of bottle is provided with a circular hole.
Described circular hole is 1.5-2.0cm apart from bottleneck, and diameter is 2mm-3mm.
Described bottle is made up of plastic material.
The beneficial effects of the utility model are: experimental provision is simple, convenient operation; Experiment equipment is easy to get, and turns waste into wealth, environmental protection; Experimental drug consumption is few, phenomenon is obvious, good demonstration effect; Experiment safety is good, and originates from life also, for life, is beneficial to and excites the interest of student to scientific experiment.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model experimental phenomena structural representation.
Wherein 1, bottle, 2, bottle cap, 3, glass bar, 4, test tube, 5, circular hole.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, a kind of self-control foam annihilator demonstrating experiment device, comprise bottle 1, bottle cap 2, test tube 4, circular hole 5 and glass bar 3, the top of bottle 1 is provided with a circular hole 5, test tube 4 is vertically positioned over bottle 1 inside, and one end of glass bar 3 is placed in test tube 4 bottoms, and the other end and bottle cap 2 join, circular hole 5 is about 1.5cm apart from bottleneck, and diameter is 2mm; Bottle 1 can be as sealing mineral water bottle; The length of glass bar 3 equates with the height of bottle 1; Bottle cap 2 matches with the bottleneck of bottle 1.
First, get the mineral water bottle of a cleaning, distance bottleneck 1.5cm place above bottle 1, the circular hole 5 that brill one diameter is 2mm; The NaCO configuring at warm water in advance to the interior injection of bottle 1
3mixed solution 20mL left and right with liquid detergent adds the concentrated hydrochloric acid about 10mL in test tube 4; With careful test tube 4 is put in bottle 1 of a fine rule; The glass bar of equal altitudes 3 one end are put in to test tube 4 bottoms, then tighten bottle cap 2; This experimental provision that overturns, as shown in Figure 2, aims at circular hole 5 cotton of firing, the CO that reaction produces
2gas goes out bottle 1 in the effect undershoot of pressure, can be observed obvious fire extinguishing phenomenon, and in operating process, if constantly vibrate up and down bottle 1, experiment effect can be better.Use NaCO
3replace dense NaCO with the mixed solution of liquid detergent
3solution, increases foam; The mineral water bottle of plastic material replaces suction flask as reactor, plug can not occur and gone out the phenomenon outside bottle by gas, eliminates the potential safety hazard existing in operating process.
Above-mentioned embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendments that creative work can make or distortion still in protection domain of the present utility model.
Claims (3)
1. a foam annihilator demonstrating experiment device, it is characterized in that, comprise bottle, bottle cap, test tube and glass bar, described bottle is connected by spiral lamination with described bottle cap, described test tube is vertically placed in described bottle body bottom, and one end of described glass bar is placed in described test tube bottom, and the other end of described glass bar is placed in described bottle cap below, the length of described glass bar equates with the height of described bottle, and the top of described bottle bottle is provided with a circular hole.
2. a kind of foam annihilator demonstrating experiment device as claimed in claim 1, is characterized in that, described circular hole is 1.5-2.0cm apart from bottleneck, and diameter is 2mm-3mm.
3. a kind of foam annihilator demonstrating experiment device as claimed in claim 2, is characterized in that, described bottle is made up of plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420444863.3U CN203982662U (en) | 2014-08-06 | 2014-08-06 | A kind of foam annihilator demonstrating experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420444863.3U CN203982662U (en) | 2014-08-06 | 2014-08-06 | A kind of foam annihilator demonstrating experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203982662U true CN203982662U (en) | 2014-12-03 |
Family
ID=51980090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420444863.3U Expired - Fee Related CN203982662U (en) | 2014-08-06 | 2014-08-06 | A kind of foam annihilator demonstrating experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203982662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185212A (en) * | 2015-08-31 | 2015-12-23 | 黄凌玲 | Teaching experiment device for endothermic reaction |
-
2014
- 2014-08-06 CN CN201420444863.3U patent/CN203982662U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185212A (en) * | 2015-08-31 | 2015-12-23 | 黄凌玲 | Teaching experiment device for endothermic reaction |
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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: 20141203 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |