Experimental device for gas explosion teaching demonstration

Abstract

The invention discloses an experimental device for gas explosion teaching demonstration, and relates to the technical field of experimental equipment. The device comprises a cylinder body, a gas storage cover and an igniter; a bracket is fixed on the inner wall of the cylinder; brackets are uniformly fixed on the peripheral side surface of the gas storage cover; the gas storage cover is connectedwith a connecting pipe A and a connecting pipe B; the connecting pipe A is provided with a water inlet A and a combustion-supporting gas inlet; the connecting pipe B is provided with a water inlet B and an explosive gas inlet; a spark plug in the igniter is fixed on the inner wall of the gas storage cover; and the water level in the cylinder body is higher than the upper surface of the gas storagecover. According to the invention, through the action of the cylinder body, the gas storage cover and the igniter, a visual underwater explosion experiment is carried out, and the phenomenon during gas explosion and the hazard during explosion can be visually sensed, and the different characteristics of underwater explosion and known phenomenon during aerial explosion can be observed.

Description

technical field [0001] The invention belongs to the technical field of experimental equipment, in particular to an experimental device used for teaching demonstration of gas explosion. Background technique [0002] Experimental teaching is an important part of chemistry teaching. It can stimulate students' interest in learning chemistry, help students form chemical concepts, and acquire chemical knowledge and experimental skills. In junior high school chemistry textbooks, there are contents related to flammable gas explosion and hydrogen explosion. Among them, only hydrogen explosion can complete the hydrogen explosion experiment through the experimental method provided in the textbook, but this hydrogen explosion experiment is difficult and not easy to succeed; for flammability Gas explosions can only be described to students based on the content in the textbooks. There is no relevant experimental demonstration content, which is difficult for students to understand, and it ...

AI Technical Summary

Problems solved by technology

In junior high school chemistry textbooks, there are contents related to flammable gas explosion and hydrogen explosion. Among them, only hydrogen explosion can complete the hydrogen explosion experiment through the experimental method provided in the textbook, but this hydrogen explosion experiment is difficult and not easy to succeed; for flammability Gas explosions can only be described to students based on the content in the textbooks. There is no relevant experimental demonstration content, so it is difficult for students to understand, and it is impossible for students to deepen their understanding of the hazards of flammable gas explosions from the senses

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