CN202838784U - Dust explosion experiment device - Google Patents
Dust explosion experiment device Download PDFInfo
- Publication number
- CN202838784U CN202838784U CN 201220312277 CN201220312277U CN202838784U CN 202838784 U CN202838784 U CN 202838784U CN 201220312277 CN201220312277 CN 201220312277 CN 201220312277 U CN201220312277 U CN 201220312277U CN 202838784 U CN202838784 U CN 202838784U
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Abstract
Disclosed is a dust explosion experiment device, which comprises a conduit, an air bag, a small plastic box, an ignition device and a transparent experiment box. The device is characterized in that the small plastic box used for containing dust is arranged at the bottom of the transparent experiment box; the conduit with one end equipped with the air bag passes through the transparent experiment box to be connected with the small plastic box; the ignition device is formed by winding absorbent cotton on a thin iron wire inserted in a rubber plug into a cotton ball shape and dipping the cotton ball into alcohol, the cotton ball is quickly inserted in the experiment device after being ignited outside the experiment box, the ignition is timely, the ignition time is short, the firepower is strong, the fire cannot be blown out, and the experiment cannot fail due to oxygen burn-out; and two holes are opened at the bottom of the experiment box and the bottle wall, the conduit is passed through the experiment box and inserted in the small plastic box, the other end of the conduit is connected with the air bag, the thin iron wire on the rubber plug is wound with absorbent cotton and dipped into alcohol and is then used as a fire source, and the problem that a candle is small in flame and can be easily blown out by blown-in air flow is solved. The transparent experiment box, the main component of the experiment device, is made of BOPP heat-resistant plastic material so that the transparent experiment box has good toughness and high transparency, and students can see the internal structure of the device and the combustion and explosion situations during the experiment as well as the whole process of flour spraying-out, combustion and explosion.
Description
Technical field
The dust explosion tester relates to a kind of experiment teaching instrument, and everybody instrument of starting to test of a kind of suitable student belongs to nine-year compulsory education stage natural sciences experimental teaching tester.
Background technology
Junior middle school chemistry Unit the 7th " burning and fire extinguishing " problem 1 has a dust explosion experiment.Test according to the method on the teaching material, not only success ratio is very low but also poor effect.Through repetition test, finally this dust explosion tester has been designed to a safe and environmentally friendly tester, and success ratio reached absolutely, because the tester agent set is transparent, be convenient to the overall process that observation fire occurs.
Flour is combustible, adopts certain method, and dust is spread in the air in large quantities, if it is lighted, then can cause burning, in limited space, when dust combustion acutely reaches explosion limits, at once blasts after lighting.The experimental technique of pointing out on the teaching material: the top that cuts off sky metal can and little plastic bottle, and in the bottom side of metal can and little plastic bottle each makes a call to an aperture more smaller than proofed sleeve external diameter, connect device, in little plastic bottle, put into flour, lighted candle, cover tank with vinyl cover and do this experiment, be difficult to find proper metal can, make also cumbersome, be not easy to cut off metal can, cut flat whole, most of teacher is unwilling to do, and does this experiment with metal can and do not observe phenomenon that the inside occurs; Too heavy such as vinyl cover, or covered tightly very much, all be not easy to be raised; Because candle flame is little, is not easy to light dust, the air-flow that is but easily blasted extinguishes, and causes the failure of testing.
Summary of the invention
The utility model dust explosion tester comprises conduit, air bag, the plastics capsule, portfire, transparent experiment box, it is characterized in that: the plastics capsule of containing dust places transparent experiment box inner bottom part, and the conduit that an end is equipped with air bag passes transparent experiment box and passes the plastics capsule and be attached thereto; Portfire becomes the cotton balls shape by the upper absorbent cotton of thin wire strand that inserts in the rubber plug, and cotton balls sucts alcohol and forms, after experiment box fired outside rapidly in the loading test device, instant igniting, the time is short, and firepower is prosperous, blow and do not go out, can not cause the failure of an experiment because of after-flame oxygen; Open a larger hole at transparent experiment box wall, size and the rubber plug in hole are onesize, an aperture is made a call to iron nail in center at rubber plug, and a thin wire is passed rubber plug, and the upper absorbent cotton of front end strand of thin wire becomes the cotton balls shape, suck alcohol as burning things which may cause a fire disaster, form a portfire, solve candle flame little, be not easy to light dust, the air-flow that is but easily blasted extinguishes, and causes the failure problem of testing; Open an aperture same large with conduit in the bottom of transparent experiment box and plastics capsule, the plastics capsule is placed in the transparent experiment box, conduit is passed in the transparent experiment box insertion plastics capsule connect another termination air bag of conduit; Lid tips upside down on the opening part of transparent experiment box top.
The transparent experiment box of tester main element is made by the BOPP heat resistant plastic material, the good toughness transparency is high, situation when experiment can allow the student see the inner structure of auto levelizer and combustion explosion when carrying out, the student can see the overall process of flour ejection, burning, blast.
Description of drawings
Accompanying drawing 1 is the dust explosion experimental provision schematic diagram that provides on the teaching material; Accompanying drawing 2 is dust explosion tester schematic diagrams.Press the sequence number among the figure: 1. conduit, 2. air bag, 3. plastics capsule, 4. rubber plug, 5. burning things which may cause a fire disaster, 6. transparent experiment box, 7. lid.
Embodiment
It is the tester firing chamber that the dust explosion tester is arranged to transparent experiment box (6) real, be made by the BOPP heat resistant plastic material, the good toughness transparency is high, the bottom surface diameter is 120 ㎜, high 280 ㎜, enough space is provided, the situation in the time of when experiment is carried out, allowing the student see the inner structure of auto levelizer and combustion explosion, the student can see the overall process of flour ejection, burning, blast.Open an aperture same large with conduit in the bottom of transparent experiment box and plastics capsule (3), the plastics capsule is placed in the transparent experiment box, conduit (1) is passed transparent experiment box insert connection in the plastics capsule, and the other end of conduit connects air bag (2); Open a larger hole at transparent experiment box wall, the size in hole is the same large with rubber plug (4), an aperture is made a call to iron nail in center at rubber plug, after a thin wire doubling twisted together, pass rubber plug, absorbent cotton becomes the cotton balls shape on the front end strand of thin wire, cotton balls suction alcohol namely forms a portfire as burning things which may cause a fire disaster (5) before the experiment, externally lights alcohol during experiment, and fills in rapidly transparent experiment box, immediately with the air bag air-blowing dust of kicking up, the solution candle flame is little, is not easy to light dust, and the air-flow that is but easily blasted extinguishes, be unlikely to again experiment box oxygen after-flame is caused the failure problem of testing.
Get dry flour during experiment as in the plastics capsule in the transparent experiment box, and lid (7) is tipped upside down on the beverage bottle mouth.Transfer to portfire, cotton balls is soaked upper alcohol, light cotton ball soaked in alcohol and also fill in rapidly in the transparent experiment box, blast air by pressuring gasbag from conduit fast immediately, dust in the plastics capsule is kicked up, and the time is short, flame is large, can not cause the failure of an experiment because of after-flame oxygen.Can be observed in the dust of kicking up, flame is sent in violent burning assembly in transparent experiment box, and with slight explosion sound, the blast of generation starts more than 1 meter lid high.
Claims (1)
1. the dust explosion tester comprises conduit, air bag, the plastics capsule, portfire, transparent experiment box, it is characterized in that: the plastics capsule of containing dust places transparent experiment box inner bottom part, and the conduit that an end is equipped with air bag passes transparent experiment box and passes the plastics capsule and be attached thereto; Portfire is twisted upper absorbent cotton by the thin wire in the insertion rubber plug and is become the cotton balls shape, and cotton balls sucts alcohol and forms, and in the rapid loading test device, immediately lights a fire after experiment box fired outside, and the prosperous time of firepower is short, can not cause the failure of an experiment because of after-flame oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312277 CN202838784U (en) | 2012-06-30 | 2012-06-30 | Dust explosion experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312277 CN202838784U (en) | 2012-06-30 | 2012-06-30 | Dust explosion experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202838784U true CN202838784U (en) | 2013-03-27 |
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ID=47950432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220312277 Expired - Fee Related CN202838784U (en) | 2012-06-30 | 2012-06-30 | Dust explosion experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202838784U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778893A (en) * | 2015-04-22 | 2015-07-15 | 鹿寨县初级实验中学 | Dust explosion experimenting device |
| CN108321986A (en) * | 2016-05-21 | 2018-07-24 | 金福珍 | Using the alternating current generator and its working method of temperature sensor |
| CN109147523A (en) * | 2018-09-26 | 2019-01-04 | 孝感锐创机械科技有限公司 | A kind of device of simulating dust explosion |
| CN109187636A (en) * | 2018-10-23 | 2019-01-11 | 安徽理工大学 | The experimental provision and method of dust explosive characteristic are measured under the conditions of a kind of visualization is isobaric |
| CN109545053A (en) * | 2019-01-11 | 2019-03-29 | 蒋前进 | A kind of dust explosion demonstration device |
| CN110956888A (en) * | 2018-01-31 | 2020-04-03 | 孝感锐创机械科技有限公司 | Teaching demonstration device for dust explosion |
-
2012
- 2012-06-30 CN CN 201220312277 patent/CN202838784U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778893A (en) * | 2015-04-22 | 2015-07-15 | 鹿寨县初级实验中学 | Dust explosion experimenting device |
| CN108321986A (en) * | 2016-05-21 | 2018-07-24 | 金福珍 | Using the alternating current generator and its working method of temperature sensor |
| CN110956888A (en) * | 2018-01-31 | 2020-04-03 | 孝感锐创机械科技有限公司 | Teaching demonstration device for dust explosion |
| CN110956887A (en) * | 2018-01-31 | 2020-04-03 | 孝感锐创机械科技有限公司 | Dust explosion simulation equipment |
| CN109147523A (en) * | 2018-09-26 | 2019-01-04 | 孝感锐创机械科技有限公司 | A kind of device of simulating dust explosion |
| CN109187636A (en) * | 2018-10-23 | 2019-01-11 | 安徽理工大学 | The experimental provision and method of dust explosive characteristic are measured under the conditions of a kind of visualization is isobaric |
| CN109545053A (en) * | 2019-01-11 | 2019-03-29 | 蒋前进 | A kind of dust explosion demonstration device |
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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: 20130327 Termination date: 20140630 |
|
| EXPY | Termination of patent right or utility model |