Energy conversion demonstration device for teaching experiment

A technology of energy conversion and demonstration device, applied to teaching models, educational tools, instruments, etc., can solve the problems of unsuitable use and bulkiness, and achieve the effects of easy operation, long duration, and explosion prevention

Inactive Publication Date: 2016-09-07
覃文峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the amount of experimental equipment is h

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  • Energy conversion demonstration device for teaching experiment

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the ass...

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Abstract

The invention discloses an energy conversion demonstration device for teaching experiments. The energy conversion demonstration device comprises a support, an alcohol burner, a boiler, an impeller and a syringe needle, wherein the alcohol burner is placed on the support, the boiler is installed on the support and positioned above the alcohol burner, a water filling port and an air outlet pipe are arranged in the boiler, the air outlet pipe is connected with the syringe needle through an air guiding tube, the impeller is installed on the support and driven to rotate by the steam ejected by the syringe needle. A test tube is replaced by a boiler, which reduces the cracking danger of the test tube. After the water boils in the boiler, the impeller can rotate continuously through the high-pressure water vapor. The experiment phenomenon lasts long, and is convenient for the student to observe. The use of the boiler improves heat absorption efficiency. The energy conversion demonstration device is simple in structure and convenient to operate.

Description

【Technical field】 [0001] The invention relates to an energy conversion device, in particular to an energy conversion demonstration device used for teaching experiments. 【Background technique】 [0002] The conversion of chemical energy into mechanical energy in a heat engine is a specific content of our teaching, and it is also a commonly used energy conversion method in daily life. At present, the heat engine demonstration experiment in junior high school physics textbooks is to heat a test tube sealed with a rubber stopper after filling water, and then let it The high-pressure water vapor pushes the rubber stopper out, and the degree of tightness of the rubber stopper depends on experience. If the stopper is too tight, the test tube will burst, causing an experimental accident. If the stopper is loose, there will be no spraying effect or shocking effect. The above-mentioned heat engine demonstration experiment has certain risks, and the experimental operation is difficult t...

Claims

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Application Information

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IPC IPC(8): G09B23/16
CPCG09B23/16
Inventor 覃文峰
Owner 覃文峰
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