Dust explosion demonstration device
A demonstration device and dust explosion technology, which is applied in the field of teaching equipment, can solve the problems that there is no special demonstration device for demonstration and dust explosion teaching content, and achieve the effect of high safety performance
Pending Publication Date: 2019-03-12
温州市龙湾区教师发展中心
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Problems solved by technology
[0005] The purpose of the present invention is to provide a dust explosion demonstration device, aiming at the problem that there is no special demonstration device for the teaching content of dust explosion in current teaching
Method used
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Embodiment Construction
[0023] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0024] refer to Figure 1 to Figure 4 , a dust explosion demonstration device, including a battery 1, a high-voltage generator 2, a switch 3 and an arc generator, the output end of the battery 1 is connected to the high-voltage generator 2 for power supply, and the switch 3 is connected in series between the battery 1 and the high-voltage generator 2 It is used to control the power on and off of the high voltage generator 2. The arc generation head includes at least one set of discharge electrode groups, preferably one set of discharge electrode groups; each set of discharge electrode groups includes two discharge electrodes 5 that cooperate with each other, and the discharge electrodes 5 are electrically connected to the high voltage generator 2. At the output end, the high voltage generating device 2 can be a high voltage pack or a small transformer.
[0...
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The invention discloses a dust explosion demonstration device. The dust explosion demonstration device comprises a battery, a high-voltage generation device and a switch, wherein the battery suppliespower to the high-voltage generation device, the switch is used for making the battery and the high-voltage generation device in on-off electric connection, the portion located at one side of the battery is provided with a bottom plate, the bottom plate is provided with an arc generating head, an isolation hood of the arc generating head covers the bottom plate, the portion, located at an area covered with the isolation hood, of the bottom plate is provided with an air hole, the lower portion of the bottom plate is provided with a connector of which the inner portion is provided with an air cavity and communicated with the air hole, the connector is communicated with an air inlet pipe, the air hole is covered with blocking dust and a breathable filter net, and the arc generating head is electrically connected to an output end of the high-voltage generation device. The dust explosion demonstration device has the advantages that the dust explosion demonstration device can achieve the demonstration of a dust explosion principle and has very high safety performance so that students can understand teaching content of dust explosion more visually and vividly.
Description
technical field [0001] The invention relates to a teaching tool, in particular to a dust explosion demonstration device. Background technique [0002] Dust explosion refers to combustible dust within the explosion limit range, when encountering a heat source, the flame spreads instantly throughout the entire mixed dust space, the chemical reaction speed is extremely fast, and a large amount of heat is released at the same time, forming a high temperature and a high pressure. The energy of the system is converted into mechanical energy and radiation of light and heat, which has a strong destructive force. [0003] Dust explosions are often accompanied by aluminum powder, zinc powder, aluminum processing grinding powder, various plastic powders, intermediates of organic synthetic drugs, wheat flour, sugar, wood chips, dyes, bakelite ash, milk powder, tea powder, tobacco powder, coal Production and processing sites that generate dust, plant fiber dust, etc. [0004] In the pr...
Claims
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IPC IPC(8): G09B23/24
CPCG09B23/24
Inventor 曾华钦王健浩王建胡
Owner 温州市龙湾区教师发展中心