CN203300104U

CN203300104U - Energy converting experimental apparatus

Info

Publication number: CN203300104U
Application number: CN2013202278648U
Authority: CN
Inventors: 曹晓春
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-30
Filing date: 2013-04-30
Publication date: 2013-11-20
Anticipated expiration: 2023-04-30

Abstract

An energy converting experimental apparatus relates to an experimental apparatus which produces heat by friction and converts heat energy into kinetic energy. The energy converting experimental apparatus is characterize in that a rubber plug is plugged in an opening of a vertical pipe to form a sealing pipe rack, a groove in a pedestal can just block a vertical part and a hiding part of a T-shaped pipe in itself, the pedestal is pressed when an experiment is carried out, and functions of steadiness and heat preservation are achieved. A cannula is made from an asbestos material, an external layer of the cannula is comparatively coarse plastic, the coarse external layer which clings to a strip of cloth pulled to and fro is rotated rapidly; and a contact surface of the cannula and a rounded steel pipe is big, heat energy produced by friction is high, and the asbestos material and the pedestal can preserve heat, so a quantity of heat is not easy to dissipate. When an experiment is carried out, a liquid which has a comparatively low boiling point, such as ether, methanol or ethanol is added into the T-shaped pipe, the rubber plug is plugged in. When heat produced by friction of the steel pipe and the strip of clothe via pulling the strip of clothe reaches up to a corresponding temperature, a lot of steam produced in the pipe makes the rubber plug to burst and rush out of the opening of the pipe, and heat energy is conversed into kinetic energy.

Description

The energy conversion tester

Technical field

The utility model relates to the experimental apparatus of the energy conversion that a kind of school science grouping experiment uses, and a kind of student of allowing starts to probe into friction and produces heat, and heat energy is again the tester that how to convert kinetic energy to, belongs to school science experiment teaching aid, learning aid.

Background technology

The frictional heat phenomenon is one of modal phenomenon in life, and it is emphasis in teaching that energy is changed mutually.In " heat energy becomes, becomes, becomes " class of six grades first volumes of Hunan religion version teaching material " science ", having an experimental activity to be called---the rubber stopper of " impulsion ", although in teaching, the academics and students is in many ways by every means, can not guarantee the success of testing.Because the simplest schematic diagram only is provided in teaching material: a steel pipe, a rubber stopper and a rope; Rubber stopper is filled in steel pipe opening, pulls rope friction steel pipe to make the steel pipe heating, and after heating, rubber stopper is gone out steel pipe opening.It is unsuccessful that following many reasons causes testing: one, the surface of contact of rope and tube fraction is little, and thermal efficiency is low; Two, the steel pipe heat radiation is than very fast, and the heat of generation has distributed soon, does not reach very high temperature; Three, the steel pipe heating is expanded inner air tube, and kinetic energy is too little, and deficiency is so that rubber stopper is gone out the mouth of pipe; Four, testing steel pipe how fixedly also is a problem.The failure of experiment can't strengthen the student perceptual knowledge, sharpen understanding, more can not excite the dense section of student study interest.

Summary of the invention

the utility model energy conversion tester relates to a kind of friction and produces heat, heat energy converts again the tester of kinetic energy to, comprise: T-shaped pipe, rubber plug, base, sleeve pipe, cloth etc., it is characterized in that: the T font pipe support that T-shaped pipe is manufactured by round steel pipe, become hermetic pipe support after rubber stopper beyond the Great Wall at the vertical mouth of pipe, the bottom surface of base is provided with transverse circular groove and the vertical circular groove that matches with T-shaped pipe, just in time the vertical portion of T-shaped pipe and hidden parts can be stuck in the groove the inside, push down base during experiment, both play a part firm, also play simultaneously insulation.Sleeve pipe is made by asbestos material, and skin is more coarse plastic cement, and coarse skin is close to cloth and is pulled back and forth fast rotational, and sleeve pipe and round steel pipe surface of contact are large, and fricative thermal efficiency is high, and asbestos material and base insulation are arranged again, is difficult for distribute heat.

During experiment, select the lower ether of boiling point (34.6 degree) or methyl alcohol (64.5 degree) or ethanol (78.3 degree) liquid to add in T-shaped pipe, rubber stopper beyond the Great Wall, the heat that pulls cloth friction steel pipe to produce reaches corresponding temperature, to produce a large amount of steam in pipe and make the rubber plug outburst go out the mouth of pipe, heat energy has namely changed into kinetic energy.Beneficial effect: can strengthen the student perceptual knowledge, sharpen understanding, excite the great interest of student to science learning.

Description of drawings

Figure of description 1 is energy conversion tester device schematic diagram, and accompanying drawing 2 is stable base backplan, and its sequence number is successively: 1.T type pipe, 2. rubber plug, 3. base, 4. sleeve pipe, 5. cloth, 6. desktop, 7. horizontal round recessed, 8. vertical round recessed.

Embodiment

The energy conversion tester, comprise T-shaped pipe, rubber plug, base, sleeve pipe, cloth etc.it is characterized in that: the T font pipe support that T-shaped pipe (1) is manufactured by round steel pipe, become hermetic pipe support in the rear pipe of rubber stopper (2) beyond the Great Wall at the vertical mouth of pipe, the bottom surface of base (3) is provided with transverse circular groove (7) and the vertical circular groove (8) that matches with T-shaped pipe, just in time the vertical portion of T-shaped pipe and hidden latter half can be stuck in the groove the inside, push down base during experiment, both play a part firm, also play simultaneously the insulation effect of pipe support, the skin of sleeve pipe (4) is more coarse plastic cement, nexine is asbestos material, coarse skin is easily pulled fast rotational back and forth by cloth (5), sleeve pipe and round steel pipe surface of contact are large, fricative thermal efficiency is high, asbestos material and base insulation are arranged again, be difficult for distribute heat.Make in T-shaped pipe the boiling temperature that reaches fast methyl alcohol (64.5 degree) produce steam, intraductal atmospheric pressure increases, and rubber stopper is gone out the mouth of pipe.

Claims

1. the energy conversion tester relates to a kind of tester that generation is hot, heat energy converts again kinetic energy to that rubs, comprise: T-shaped pipe, rubber plug, base, sleeve pipe, cloth, it is characterized in that: the vertical mouth of pipe of T-shaped pipe is hermetically sealed shape after rubber stopper beyond the Great Wall, the transverse circular groove of the bottom surface of base and vertical circular groove, just in time can block the vertical portion of T-shaped pipe and hidden parts.

2. energy conversion tester according to claim 1, by the sleeve pipe that asbestos material is made, superficies are coarse, with cloth, tightly are affixed.