CN201611534U - Combustible gas explosion limit demonstrating device - Google Patents
Combustible gas explosion limit demonstrating device Download PDFInfo
- Publication number
- CN201611534U CN201611534U CN2010201301412U CN201020130141U CN201611534U CN 201611534 U CN201611534 U CN 201611534U CN 2010201301412 U CN2010201301412 U CN 2010201301412U CN 201020130141 U CN201020130141 U CN 201020130141U CN 201611534 U CN201611534 U CN 201611534U
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- explosion limit
- reactor
- chamber
- combustible gas
- gas explosion
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Abstract
The utility model relates to a combustible gas explosion limit demonstrating device, comprising a reactor and an electronic igniter. The reactor is provided with an explosion chamber and a limiting bayonet, the explosion chamber is internally provided with a pull rod and a piston, and the lower part thereof is provided with a suction pipe, a check valve and a suction port; and the electronic igniter is provided with an ignition lead and an igniter. The device is mainly characterized in that the reactor is provided with the electronic igniter. The utility model is a convenient and rapid, time-saving and labor-saving combustible gas explosion limit demonstrating device with good security, thereby solving the problems of the simple explosion limit teaching device or national standard explosion limit detection device such as time and labor waste, poor security, complicate structure, large size, hard manufacturing, inconvenient operation, high cost, and the like.
Description
Technical field
The utility model belongs to high school chemistry teaching test teaching aid technical field, relates to a kind of flammable gas explosion limit apparatus for demonstrating, is a kind of device that is used for multiple flammable gas explosion marginal test demonstration.
Background technology
As everyone knows, when the concentration of inflammable gas reaches explosion limits, can blast under certain conditions.In the middle school chemistry textbook, the notion of the explosion limits of inflammable gas is mentioned in many places, and the student is only by the explanatory note in the textbook, because lack of perceptual knowledge, for its principle, often indigestion.
At this situation, some teachers have designed a kind of easy explosion limits test teaching aid device on the classroom, this teaching aid device is at first with the blind end of a kind of beverage with pop can, open an aperture with nail, feed the mixed combustible gas body at another opening end again, device is upside down on the flat board, with pointing the aperture of pushing down on the blind end, unclamp finger at kindling material during near aperture, the mixed combustible gas body is blasted.But because this teaching aid Design of device varies with each individual, and too simple, often cause unsuccessful test or produce dangerously, have shortcomings such as time-consuming, effort, poor stability.
Also showed a kind of explosion limits pick-up unit in the standard GB/T 12474-90 " flammable gas explosion limit assay method in the air ".This device mainly is made up of reaction tube, portfire, stirring apparatus, vacuum pump, pressure gauge, solenoid valve etc.It is the reaction tube of material with hard glass that the major part of device is one, and blowdown valve is equipped with in the pipe bottom, and device is placed in the constant temperature oven.But there is complex structure in this device, takes up room greatly, makes weak points such as difficulty, inconvenient operation, expense height.
Summary of the invention
The purpose of this utility model is at above-mentioned employing simple and easy explosion limits teaching aid device or the existing problem and shortage part of GB explosion limits pick-up unit, and a kind of convenient and swift, time saving and energy saving, flammable gas explosion limit apparatus for demonstrating that security is good is provided.
Technical solution of the present utility model is: a kind of flammable gas explosion limit apparatus for demonstrating comprises reactor and electronic lighter composition.Reactor is provided with burst-chamber and spacing bayonet socket, and pull bar and piston are housed in the burst-chamber, and air intake duct, stop valve, air entry are equipped with in the bottom; Electronic lighter is provided with harness, lighter.Its principal character is: reactor assembling electronic lighter.
Reactor described in the utility model technical solution is the main body of flammable gas explosion limit apparatus for demonstrating, reactor is provided with burst-chamber and spacing bayonet socket, pull bar and piston are housed in the burst-chamber, the bottom has aperture and assembles air intake duct, stop valve, air entry, burst-chamber, pull bar and piston adopt the large size disposable syringe to make, burst-chamber is transparent and scale is arranged, and it mainly acts on is to make inflammable gas enter burst-chamber, reaches the purpose of controlling air inflow, being convenient to the observation experiment phenomenon.
Electronic lighter described in the utility model technical solution is made up of harness and lighter, and lighter adopts the disposable lighter fire maker, and is connected with inflammable gas in the burst-chamber by harness.It mainly acts on, and lights inflammable gas in the burst-chamber by electronic lighter.
The beneficial effects of the utility model are: solved adopt simple and easy explosion limits teaching aid device or GB explosion limits pick-up unit is wasted time and energy, poor stability, complex structure, take up room big, make shortcomings such as difficulty, inconvenient operation, expense height.Through experimental demonstration, in the explosion limits scope, by changing the concentration and the air inflow of inflammable gas, can be observed explosion phenomenon grows from weak to strong, again by strong to weak overall process, this device can allow classmates observe the explosion limits phenomenon of inflammable gas visual in imagely, can also be as the safety detection device of gas burst.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, pull bar; 2, harness; 3, spacing bayonet socket; 4, piston; 5, burst-chamber; 6, lighter; 7, air intake duct; 8, stop valve; 9, air entry.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in Figure 1, pull bar (1) connects piston (4), is installed on the burst-chamber (5), and burst-chamber (5) is connected with lighter (6) by harness (2).When carrying out the demonstration of the flammable gas explosion limit with device, open stop valve (8), pulling pull bar (1) drives piston (4), make inflammable gas enter burst-chamber (5) from air entry (9), close stop valve (8), firing point firearm (6) is observed flammable gas explosion limit demonstrative process.
Claims (1)
1. flammable gas explosion limit apparatus for demonstrating, comprise reactor and electronic lighter composition, reactor is provided with burst-chamber (5) and spacing bayonet socket (3), and pull bar (1) and piston (4) are housed in the burst-chamber (5), and air intake duct (7), stop valve (8), air entry (9) are equipped with in the bottom; Electronic lighter is provided with harness (2), lighter (6), and its principal character is: reactor assembling electronic lighter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201301412U CN201611534U (en) | 2010-03-15 | 2010-03-15 | Combustible gas explosion limit demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201301412U CN201611534U (en) | 2010-03-15 | 2010-03-15 | Combustible gas explosion limit demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611534U true CN201611534U (en) | 2010-10-20 |
Family
ID=42962167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201301412U Expired - Fee Related CN201611534U (en) | 2010-03-15 | 2010-03-15 | Combustible gas explosion limit demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201611534U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903500A (en) * | 2012-12-31 | 2014-07-02 | 普教装备产业股份有限公司 | Oxyhydrogen explosion demonstration instrument |
| CN112577996A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Experimental device for combustible gas explosion limit under survey high temperature condition |
-
2010
- 2010-03-15 CN CN2010201301412U patent/CN201611534U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903500A (en) * | 2012-12-31 | 2014-07-02 | 普教装备产业股份有限公司 | Oxyhydrogen explosion demonstration instrument |
| CN112577996A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Experimental device for combustible gas explosion limit under survey high temperature condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20110315 |