CN204695638U

CN204695638U - A kind of dust explosion experimental provision

Info

Publication number: CN204695638U
Application number: CN201520385272.8U
Authority: CN
Inventors: 孙雁
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-04
Filing date: 2015-06-04
Publication date: 2015-10-07
Anticipated expiration: 2025-06-04

Abstract

The utility model discloses a kind of dust explosion experimental provision, comprise bottle and bottle cap, the side surface of described bottle has aperture, aperture is provided with can the lid of folding, have flour and blinding inside bottle, the utility model dust explosion test unit also Borrow's muzzle can fill in the electronic ignition gun of aperture.The utility model operating process is easy, covers tightly the bottle cap of bottle and the lid of aperture, firmly rocks bottle, makes flour be full of whole bottle, then opens the lid of aperture, the mouth of pipe of electronic ignition gun is filled in aperture and strikes sparks.The utility model structure is simple, easy and simple to handle; Replace candle with electronic ignition gun, the potpourri that makes to ignite is more prone to, and experimental phenomena is more obvious.

Description

A kind of dust explosion experimental provision

Technical field

The utility model belongs to physics teaching experiment teaching aid technical field, particularly relates to a kind of dust explosion experimental provision.

Background technology

In junior middle school physics teaching process, dust explosion principle and experiment can be related to, the way of the device that textbook is given is: the top cutting off sky metal can and little plastic bottle, and respectively in the bottom side of metal can and little plastic bottle make a call to an aperture more smaller than hose external diameter, connect device, dry flour is put in little plastic bottle, lighted candle, tank is covered with vinyl cover, blasting large quantity of air (people is far away apart from this device) fast from hose one end makes flour be full of tank, and observe phenomena also analyzes reason.The phenomenon that this experiment should be seen sees that vinyl cover is started by height is high, hear simultaneously " bang " sound.But in fact, when demonstrating as stated above, mostly end in failure, make the student expected very disappointed, both delayed limited time in classroom, affect again teachers and students and to attend class mood, also have impact on the teaching efficiency of this class.Even if see that vinyl cover is started by height is high, student also can think and is filled with large quantity of air, and gas in tank is increased, and caused by air pressure increases, therefore need to improve experimental provision, make experimental implementation easier, experimental phenomena is more obvious.

Utility model content

The purpose of this utility model is to provide a kind of dust explosion experimental provision, and its experiment is simple to operate, be easy to control, and experimental phenomena is more obvious.

The technical scheme that the utility model adopts is, a kind of dust explosion experimental provision, comprise bottle and bottle cap, the side surface of described bottle has aperture, aperture is provided with can the lid of folding, have flour and blinding inside bottle, the utility model dust explosion test unit also comprises the electronic ignition gun that muzzle can fill in aperture.

The utility model operating process is easy, covers tightly the bottle cap of bottle and the lid of aperture, firmly rocks bottle, then open the lid of aperture, the mouth of pipe of electronic ignition gun is filled in aperture and strikes sparks.

The beneficial effects of the utility model are, structure is simple, easy and simple to handle; Replace candle with electronic ignition gun, the potpourri that makes to ignite is more prone to, and experimental phenomena is more obvious.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model dust explosion experimental provision.

Wherein, 1. bottle, 2. bottle cap, 3. aperture, 4. lid, 5. electronic ignition gun, 6. blinding, 7. flour.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.

The utility model provides a kind of dust explosion experimental provision, as shown in Figure 1, comprise bottle 1 and bottle cap 2, the side surface of described bottle 1 has aperture 3, aperture 3 is provided with can the lid 4 of folding, be placed with flour 7 and blinding 6 inside bottle 1, the utility model dust explosion experimental provision also comprises the electronic ignition gun 5 that muzzle can fill in aperture 3.

The utility model in operation, covers tightly the bottle cap 2 of bottle 1 and the lid 4 of aperture 3, firmly rocks bottle 1, flour 7 is made to be full of whole bottle 1, then open the lid 4 of aperture 3, the mouth of pipe of electronic ignition gun 4 is filled in aperture 3 and strikes sparks, observe phenomena also analyzes reason.

The utility model has following advantage, and 1) replace air-blowing with rocking bottle, experimentation is operated simpler; 2) replace candle with electronic ignition gun igniting, the mixing that makes to ignite is more prone to; 3) eliminate bottle cap by start be due to air in bottle increase, air pressure increase caused by puzzlement; 4) success ratio tested increases greatly.

Claims

1. a dust explosion experimental provision, it is characterized in that, comprise bottle (1) and bottle cap (2), the side surface of described bottle (1) has aperture (3), there are flour (7) and blinding (6) in bottle (1) the inside, and the utility model dust explosion test unit also comprises the electronic ignition gun (5) that muzzle can fill in aperture (3).

2. dust explosion experimental provision according to claim 1, is characterized in that, aperture (3) is provided with can the lid (4) of folding.