CN202650381U - Static electricity dust explosion demonstrator - Google Patents
Static electricity dust explosion demonstrator Download PDFInfo
- Publication number
- CN202650381U CN202650381U CN 201220349520 CN201220349520U CN202650381U CN 202650381 U CN202650381 U CN 202650381U CN 201220349520 CN201220349520 CN 201220349520 CN 201220349520 U CN201220349520 U CN 201220349520U CN 202650381 U CN202650381 U CN 202650381U
- Authority
- CN
- China
- Prior art keywords
- dust explosion
- static electricity
- holes
- insulating plate
- guide lines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a static electricity dust explosion demonstrator which comprises an insulating plate, two guide lines, an air pipe, a pressing balloon, and a light-weight closed transparent container provided with an opening. Three through holes are arranged at the center of the insulating plate, wherein the air pipe is inserted into one through hole, and the two guide lines are respectively inserted into the other two holes. One end of each guide line is ground into a needle-tip shape to facilitate point discharge. When the light-weight closed transparent container provided with the opening is inversely buckled on the insulating plate with the opening facing toward the insulating plate, the air hole into which the air pipe is inserted and the other two electrode holes into which the two guide lines are respectively inserted to form two electrodes are covered in the container. When used as an instructing demonstrating device, the static electricity dust explosion demonstrator can be used to visually display a static electricity dust explosion phenomenon. At demonstrating time, the pressing balloon is used to blow flour inside a cup, then, the two guide lines forming electrodes are enabled to be electrified to produce sparks through a friction method or a high-voltage static electricity method, and finally the flour inside the cup is caused to explode, sound a voice and push the inversely buckled disposable transparent plastic cup up to a certain height. The static electricity dust explosion demonstrator is simple, safe, ingenious, and easy to operate. Used materials are easy to obtain, and even waste materials can be utilized.
Description
Technical field
The utility model relates to the teaching instrument and equipment field, specifically a kind of ELECTROSTATIC DUST explosion demonstration device.
Background technology
Dust is in the explosion limits scope, static discharge, immediately blast, moment propagates in whole mixed dust space, and chemical reaction velocity is exceedingly fast, and discharges simultaneously a large amount of heat, form very high temperature and very large pressure, the Conversion of Energy of system is the radiation of mechanical work and light and heat, has very strong destructive power, Here it is static discharge dust explosion.How safety is directly carried out ELECTROSTATIC DUST blast teaching demonstration, is a problem in the teaching.
The utility model content
The purpose of this utility model provides a kind of ELECTROSTATIC DUST explosion demonstration device, and safety is demonstration ELECTROSTATIC DUST explosion phenomenon directly.
The utility model technical scheme that adopts of dealing with problems is: a kind of ELECTROSTATIC DUST explosion demonstration device, and it comprises an insulcrete, two wires, a snorkel, the ball of calming the anger, a lightweight has the closure of openings transparent vessel;
Described insulcrete central authorities have three through holes, and snorkel is inserted in one of them hole, and two wires are inserted respectively in other two holes;
Described wire one end is worn into needlepoint form, is convenient to point discharge;
A described lightweight has closure of openings transparent vessel opening when insulcrete tips upside down on insulcrete, will cover on the pore that inserts snorkel and other two electrode holes that insert respectively two electrodes of two wires formation in the container.
Described ELECTROSTATIC DUST explosion demonstration device, it also includes an amount of dust that can burn.Described dust can be flour.
Described lightweight closure of openings transparent vessel is the expendable transparent plastic cup.
The utility model is as the teaching demonstration instrument, not only simply but also safety, can visual in imagely represent the dust electrostatic explosion phenomenon, during demonstration, blow a glass interior flour with the ball of calming the anger, method or high-pressure electrostatic method with friction makes the charged generation spark of two wires that forms electrode again, finally causes a glass interior flour blast, sends sound and the expendable transparent plastic cup of back-off is rushed to certain height.This experiment stimulates also very interesting very much, demonstrates with the utility model, and material therefor is easy to get, or even salvaging, ingenious easy row.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment: with reference to Fig. 1, a kind of ELECTROSTATIC DUST explosion demonstration device, it comprises 5 one of the little planks of long 14cm, wide 8cm, thick 1cm, two long respectively is 25cm, the rubber insulated coppor wire 2 of diameter 0.7cm, 4 one of the transparent hoses of diameter 0.4cm, 6 one in the ball of calming the anger, 1 one of expendable transparent plastic drinking cups, flour 3 is an amount of.At three apertures of little plank 5 central authorities' brills, air blowing sebific duct 4 is inserted in one of them hole, and two rubber insulated coppor wires 2 are inserted in two holes in addition, and copper cash 2 one ends are worn into needlepoint form, are convenient to point discharge, and the other end curves annular, is used for collecting positive and negative charge.
During demonstration:
1, with the plank horizontal positioned.
2, stack an amount of dry flour 3 in plank 5 central aperture vicinity.
3, expendable transparent plastic cup 1 is tipped upside down on the little plank, cover aperture and flour 3.
4, blow a glass interior flour 3 with the ball 6 of calming the anger.
5, be with on the copper cash 2 with the method for friction or high-pressure electrostatic method two rings making coiled and power on.When charge accumulated to a certain degree, place, the tip of copper cash will the discharge generation spark in the cup, electric spark is ignited flour 3, sends sound and the expendable transparent plastic cup 1 of back-off is rushed to certain height.
Claims (4)
1. ELECTROSTATIC DUST explosion demonstration device, it is characterized in that: it comprises an insulcrete, two wires, a snorkel, the ball of calming the anger, a lightweight has the closure of openings transparent vessel;
Described insulcrete central authorities have three through holes, and snorkel is inserted in one of them hole, and two wires are inserted respectively in other two holes;
Described wire one end is worn into needlepoint form, is convenient to point discharge;
A described lightweight has closure of openings transparent vessel opening when insulcrete tips upside down on insulcrete, will cover on the pore that inserts snorkel and other two electrode holes that insert respectively two electrodes of two wires formation in the container.
2. ELECTROSTATIC DUST explosion demonstration device according to claim 1 is characterized in that: it also includes an amount of dust that can burning.
3. ELECTROSTATIC DUST explosion demonstration device according to claim 2, it is characterized in that: described dust is flour.
4. according to claim 1 and 2 or 3 described ELECTROSTATIC DUST explosion demonstration devices, it is characterized in that: described lightweight closure of openings transparent vessel is the expendable transparent plastic cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220349520 CN202650381U (en) | 2012-07-19 | 2012-07-19 | Static electricity dust explosion demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220349520 CN202650381U (en) | 2012-07-19 | 2012-07-19 | Static electricity dust explosion demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202650381U true CN202650381U (en) | 2013-01-02 |
Family
ID=47419451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220349520 Expired - Fee Related CN202650381U (en) | 2012-07-19 | 2012-07-19 | Static electricity dust explosion demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202650381U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842283A (en) * | 2016-05-13 | 2016-08-10 | 徐豪辰 | Device for determining combustible gas explosion limit |
| CN109461356A (en) * | 2018-12-18 | 2019-03-12 | 温州市龙湾区教师发展中心 | Dust explosion apparatus for demonstrating |
| CN109545053A (en) * | 2019-01-11 | 2019-03-29 | 蒋前进 | A kind of dust explosion demonstration device |
-
2012
- 2012-07-19 CN CN 201220349520 patent/CN202650381U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842283A (en) * | 2016-05-13 | 2016-08-10 | 徐豪辰 | Device for determining combustible gas explosion limit |
| CN109461356A (en) * | 2018-12-18 | 2019-03-12 | 温州市龙湾区教师发展中心 | Dust explosion apparatus for demonstrating |
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20130719 |