Improved device for substance combustion experiment

Abstract

The utility model provides an improved device for a substance combustion experiment, which relates to the technical field of chemical teaching experiment equipment and comprises an acrylic box body, a fixing plate is fixed at the bottom of one side of the outer wall of the acrylic box body, a first kettle body is fixed at the top of the fixing plate, and a second kettle body is fixed at the top of the first kettle body. A funnel is fixed to the top of the second kettle body, and a gas guide pipe is connected to the top of the first kettle body in a penetrating and sealing mode. According to the device, cotton in the closed acrylic box crucible is ignited by using the remote control ignition device, and the reduction of the oxygen content and the increase of the carbon dioxide content can be observed through the oxygen sensor and the carbon dioxide sensor. When the cotton in the closed acrylic box is weak, a regulator of the gas preparation device is opened, oxygen is injected, and the cotton which is not burnt out and is provided with sparks is burnt again; when the regulator is turned off, the cotton is gradually extinguished, and the cotton can be directly controlled outside, so that internal toxic gas cannot be diffused into external air.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical teaching experiment equipment technical field, more specifically, especially, it is related to a kind of material combustion experiment improved device. BACKGROUND

[0002] Chemistry is the basic natural science on atomic, molecular level to study the composition, structure, property, conversion and application of matter, it originates from life and production practice, and with the progress of human society, and constantly develops, in the topic of the seventh unit of chemistry in the ninth grade of the People's Education Press, "Combustion and fire extinguishing", explore the conditions and fire extinguishing methods of combustion, red phosphorus and white phosphorus are used in the textbook for comparison experiment.

[0003] Based on the above, the present inventors found that the following problems exist: the textbook uses white phosphorus and red phosphorus for comparison experiment in the experimental process, white phosphorus generates toxic diphosphorus pentoxide after burning, pollutes the environment, and has safety hazards; white phosphorus and red phosphorus are placed on the same thin copper sheet, and the distance is close, sometimes white phosphorus combustion can cause red phosphorus combustion, leading to experimental failure; it is difficult to quantitatively observe and understand the conditions and combustion reaction results required for combustion of different substances during the experiment.

[0004] Therefore, the existing structure and defects are improved, and a material combustion experiment improved device is provided, so as to achieve the purpose of having more practical value. UTILITY MODEL CONTENT

[0005] In order to solve the above technical problems, the utility model provides a kind of material combustion experiment improved device, to solve the problem of present pollution environment, existence safety hazard and difficult quantitative observation and understanding the conditions and combustion reaction results required for combustion of different substances.

[0006] The utility model provides a kind of material combustion experiment improved device, by following specific technical means:

[0007] A kind of material combustion experiment improved device, including acrylic box body, the fixed plate is fixed on the bottom of the outer wall of acrylic box body one side, the first kettle body is fixed on the top of fixed plate, the second kettle body is fixed on the top of first kettle body, the funnel is fixed on the top of second kettle body, the gas guide pipe is connected with the top of first kettle body and is sealed, the other end of gas guide pipe is connected with acrylic box body and is sealed, the adjusting valve is arranged in the middle of the outer wall of gas guide pipe, the remote control igniter is fixed on the bottom of the inner wall of acrylic box body one side, the oxygen sensor and carbon dioxide sensor are respectively fixed on the top of the inner wall of acrylic box body two sides, the data collector is fixed on the top of the outer wall of acrylic box body, the piston is fixed on the bottom of the side of acrylic box body close to data collector and is penetrated, the fuel port plug body is detachably installed on the side of acrylic box body close to piston and is penetrated.

[0008] Further, the data collector is in electrical connection with the oxygen sensor and the carbon dioxide sensor, and the data collector is used for collecting and transmitting data of the oxygen sensor and the carbon dioxide sensor.

[0009] Further, the oxygen sensor is used for measuring the volume percentage of oxygen in the inside of the acrylic box under the atmospheric pressure of standard atmosphere.

[0010] Further, the carbon dioxide sensor is used for measuring the volume concentration of carbon dioxide gas in the inside of the acrylic box under the atmospheric pressure of standard atmosphere.

[0011] Further, the bottom of the acrylic box is provided with an asbestos net, and the crucible is located on the top of the asbestos net, and the asbestos net is used for isolating the crucible and the bottom of the acrylic box.

[0012] Further, the first conduit is in through sealing connection with the top of the first kettle body, and the first conduit is in through sealing connection with the bottom of the second kettle body.

[0013] Further, the second conduit is in through sealing connection with the top of the second kettle body, and the second conduit is in through sealing connection with the bottom of the funnel.

[0014] Compared with the prior art, the utility model has the advantages of the following:

[0015] 1. by using the remote control ignition device to ignite the cotton in the crucible of the closed acrylic box, the oxygen content is observed to be reduced and the carbon dioxide content is observed to be increased through the oxygen and carbon dioxide sensors. When the cotton in the closed acrylic box is "barely alive", the regulator of the gas preparation device is opened, oxygen is injected, and it is found that the cotton with sparks is burned again; the regulator is closed, and the cotton is gradually extinguished. The inside toxic gas cannot be diffused to the outside air.

[0016] 2. the combustible such as cotton, solid alcohol and candle is respectively placed in the crucible of the closed acrylic box, the remote control ignition device is used for igniting the combustible, experimental data recorded by the oxygen sensor is analyzed after the combustible is extinguished, and the minimum oxygen content required for burning different substances is obtained. The minimum oxygen content required for burning is obtained by taking the average value of three experimental data, and students are guided to explore the minimum oxygen content required for burning different combustibles. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model.

[0018] Figure 2 It is the inside structure schematic diagram of the acrylic box of the utility model.

[0019] Figure 3It is the gas preparation mechanism structure schematic view of the utility model.

[0020] Figure 4 It is the gas preparation mechanism structure section structure schematic view of the utility model.

[0021] The corresponding relationship between the component names and the figure numbers in the figure is:

[0022] 1, acrylic box body;2, fixed plate;3, piston;4, fuel port plug body;5, data collector;6, oxygen sensor;7, carbon dioxide sensor;8, asbestos net;9, crucible;10, remote control igniter;11, first kettle body;111, first conduit;12, gas conduit;13, regulating valve;14, second kettle body;141, second conduit;15, funnel. DETAILED DESCRIPTION

[0023] The embodiment of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0024] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] Embodiment:

[0026] As shown in the accompanying Figure 1 to the accompanying Figure 4 As shown:

[0027] The utility model provides a kind of material combustion experiment improved device, including acrylic box body 1, fixed plate 2 is fixed in the bottom of acrylic box body 1 outer wall one side, first kettle body 11 is fixed in the top of fixed plate 2, second kettle body 14 is fixed in the top of first kettle body 11, funnel 15 is fixed in the top of second kettle body 14, gas conduit 12 is connected with the top of first kettle body 11 and is sealed, gas conduit 12 other end and acrylic box body 1 are sealed and connected, adjusting valve 13 is arranged in the middle of the outer wall of gas conduit 12, remote control igniter 10 is fixed in the bottom of the inner wall of acrylic box body 1 one side, oxygen sensor 6 and carbon dioxide sensor 7 are respectively fixed in the top of the inner wall of acrylic box body 1 two sides, data collector 5 is fixed in the top of the outer wall of acrylic box body 1, piston 3 is fixed in the bottom of the side of acrylic box body 1 close to data collector 5, fuel port plug body 4 is detachably installed in the side of acrylic box body 1 close to piston 3.

[0028] The data collector 5 is in signal connection with the oxygen sensor 6 and the carbon dioxide sensor 7, and the data collector 5 is used for collecting and transmitting the data of the oxygen sensor 6 and the carbon dioxide sensor 7.

[0029] The oxygen sensor 6 is used for measuring the volume percentage of the oxygen in the inside of the acrylic box 1 under the standard atmospheric pressure.

[0030] The carbon dioxide sensor 7 is used for measuring the volume concentration of the carbon dioxide gas in the inside of the acrylic box 1 under the standard atmospheric pressure.

[0031] The bottom of the acrylic box 1 is provided with the asbestos net 8, and the crucible 9 is located on the top of the asbestos net 8.

[0032] The first conduit 111 is in through sealing connection with the top of the first kettle body 11, the second conduit 141 is in through sealing connection with the top of the second kettle body 14, and the bottom of the funnel 15 is in through sealing connection with the second conduit 141.

[0033] The following table is the experimental record of the minimum oxygen content required by different combustion.

[0034]

[0035] The specific use mode and effect of the embodiment are as follows:

[0036] The utility model discloses, first through with remote control igniter 10 ignition sealed acrylic box 1 in the cotton in the crucible 9, through oxygen sensor 6 and carbon dioxide sensor 7 to sealed acrylic box 1 in the oxygen and carbon dioxide content detection, data transmission to data collector 5, through the data of data collector 5 can observe that the oxygen content is reducing, carbon dioxide content is increasing, when sealed acrylic box 1 in the cotton " on the deathbed", open the regulating valve 13 of gas duct 12 outer wall, inject oxygen, find that the cotton with spark that has not burnt out burns up again, close regulating valve 13, and the cotton gradually extinguishes again, can guide student analysis to draw, material needs to burn, need and oxygen (air) contact fully, the laboratory passes through the cotton, solid alcohol, candle etc. Combustible thing is put into sealed acrylic box 1's crucible 9 in respectively, with remote control igniter 10 ignition combustible thing, when combustible thing extinguishes, arrange and analyze oxygen sensor record's experimental data, draw different material burning needed minimum oxygen content, through three experimental data take average, draw the minimum oxygen content needed for burning, guide student to inquire the minimum oxygen content needed for burning of different combustible.

[0037] The embodiments of the present application are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A material combustion experiment improvement device, comprising an acrylic box body (1), a fixed plate (2) is fixed at the bottom of one side of the outer wall of the acrylic box body (1), characterized in that: The fixed plate (2) top fixed with the first kettle (11), the first kettle (11) top fixed with the second kettle (14), the second kettle (14) top fixed with the funnel (15), the first kettle (11) top through the sealed connection with the gas conduit (12), the gas conduit (12) the other end and the acrylic box (1) through the sealed connection, the gas conduit (12) outer wall middle part is provided with the regulating valve (13), the acrylic box (1) inner wall one side bottom fixed with the remote control igniter (10), the acrylic box (1) inner wall top two sides are fixed with oxygen sensor (6) and carbon dioxide sensor (7) respectively, the acrylic box (1) outer wall top fixed with data collector (5), the acrylic box (1) near data collector (5) one side bottom through fixed with the piston (3), the acrylic box (1) near piston (3) one side through the detachable installation of fuel port plug body (4).

2. The improved apparatus for substance combustion experiment according to claim 1, characterized in that: The data collector (5) is in signal connection with the oxygen sensor (6) and the carbon dioxide sensor (7), and the data collector (5) is used for collecting and transmitting data of the oxygen sensor (6) and the carbon dioxide sensor (7).

3. The improved apparatus for substance combustion experiment according to claim 1, wherein: The oxygen sensor (6) is used for measuring the volume percentage of oxygen in the acrylic box (1) under the standard atmospheric pressure.

4. The improved apparatus for substance combustion experiment according to claim 1, wherein: The carbon dioxide sensor (7) is used for measuring the volume concentration of carbon dioxide gas in the acrylic box (1) under the standard atmospheric pressure.

5. The improved apparatus for substance combustion experiment as claimed in claim 1, wherein: The bottom of the acrylic box (1) is provided with an asbestos net (8), and the top of the asbestos net (8) is provided with a crucible (9), and the asbestos net (8) is used for isolating the crucible (9) and the bottom of the acrylic box (1).

6. The improved apparatus for substance combustion experiment as claimed in claim 1, wherein: The first kettle (11) top through the sealed connection with the first conduit (111), the first conduit (111) and the second kettle (14) bottom through the sealed connection.

7. The improved apparatus for substance combustion experiment as claimed in claim 6, wherein: The second kettle (14) top through the sealed connection with the second conduit (141), the second conduit (141) and the funnel (15) bottom through the sealed connection.

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