Teaching aid for demonstrating Gay-Lussac law
By designing a Gelusack's Law demonstration teaching aid containing a constant temperature heating device, a volume control device and a pressure sensor, the problem of difficulty in accurately controlling temperature and measuring air pressure values in the prior art is solved, and an accurate demonstration of Charles' Law and a safe experimental environment are achieved.
Patent Information
- Application Number
- CN202420317104.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-02-20
AI Technical Summary
When demonstrating Charles' Law, existing experimental teaching aids are difficult to accurately control the temperature and measure the air pressure value, and the use of a mercury thermometer poses safety risks.
A Guel Lusack's Law demonstration teaching aid including a pneumatic bottle, a constant temperature heating device, a volume control device and a pneumatic sensor was designed. The air pressure bottle temperature is maintained through a constant temperature heating device, the volume control device adjusts the gas volume, the air pressure sensor detects and records the air pressure value, and combines the formula to calculate to achieve an accurate demonstration of Charles' law.
Accurate control and measurement of the relationship between gas volume and temperature is achieved, ensuring the accuracy and safety of experimental data, and avoiding the risk of mercury use.
Smart Images
Figure CN222914317U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of experimental teaching tools, in particular to a Gay-Lussac law demonstration teaching tool. Background Art
[0002] Charles' law describes that the volume of a gas changes linearly with temperature: V = V0 (1 + avT), where V0 and V are the volumes of the gas at 0°C and T°C respectively; av is the volume expansion coefficient of the gas when the pressure remains constant. When the pressure is constant, the volume (V) of a certain amount of gas is proportional to its temperature (T), that is, when the temperature rises (or falls) by 1°C, its volume also increases (or decreases).
[0003] The existing experimental equipment uses a mercury thermometer to measure the temperature of water in a beaker to indicate the temperature of the enclosed gas below the mercury column. Practice has found that there is a large temperature difference between the two, and mercury is volatile and highly toxic, so it is not suitable for open use in classrooms. Summary of the invention
[0004] The utility model aims to provide a Gay-Lussac law demonstration teaching aid in view of the above problems existing in the prior art.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a Gay-Lussac law demonstration teaching aid, characterized in that it includes a pressure bottle and a constant temperature heating device, the constant temperature heating device is used to maintain the temperature of the pressure bottle and heat the temperature of the pressure bottle, the pressure bottle is provided with a volume control device and a pressure sensor, the volume control device is used to control the volume of the gas in the pressure bottle, and the pressure sensor is used to detect the air pressure in the pressure bottle.
[0006] The working principle of the utility model is as follows: firstly, the temperature of the air pressure bottle is maintained by a constant temperature heating device, and then the volume of the gas in the air pressure bottle is controlled by a volume control device. After the adjustment is completed, the air pressure in the air pressure bottle is measured by a pressure sensor, and the air pressure value is recorded. The air pressure bottle is heated by a constant temperature heating device, and the air pressure value in the air pressure bottle at different temperatures is detected and recorded by the pressure sensor. After the record is completed, it is substituted into the formula for calculation, so that students can understand Charles' law.
[0007] In the above-mentioned Gay-Lussac's law demonstration teaching aid, the air pressure sensor is connected to a fan, and the fan is used to accelerate the air flow in the air pressure bottle.
[0008] In the above-mentioned Gay-Lussac's law demonstration teaching aid, the air pressure sensor and the fan are connected with a circuit board, and the circuit board is used to receive the signal of the air pressure sensor and to control the fan switch.
[0009] In the above-mentioned Gay-Lussac's law demonstration teaching aid, the volume control device includes a syringe and a connecting tube for connecting to the bottom of the air pressure bottle, and the syringe is connected to the connecting tube through a silicone tube.
[0010] In the above-mentioned Gay-Lussac's law demonstration teaching aid, a water stop clamp is provided on the silicone tube.
[0011] In the above-mentioned Gay-Lussac's law demonstration teaching aid, a scale is provided on the syringe.
[0012] In the above-mentioned Gay-Lussac's law demonstration teaching aid, the constant temperature heating device is provided with a container for heating the pressure bottle in a water bath.
[0013] In the above-mentioned Gay-Lussac's law demonstration teaching aid, the constant temperature heating device includes a heating tube and a constant temperature tube, the heating tube is used to heat the container, and the constant temperature tube is used to maintain the temperature of the container.
[0014] In the above-mentioned Gay-Lussac's law demonstration teaching aid, the constant temperature heating device is provided with a control button for adjusting the temperature.
[0015] Compared with the prior art, the utility model has the advantages of being able to accurately control temperature and measure air pressure values. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] In the figure, 1. air pressure bottle; 2. constant temperature heating device; 3. volume control device; 4. air pressure sensor; 5. fan; 6. circuit board; 7. syringe; 8. connecting pipe; 9. silicone tube; 10. water stop clamp; 11. scale; 12. container; 13. control button. DETAILED DESCRIPTION
[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0019] like Figure 1 -As shown, this Lussac's law demonstration teaching aid includes a pressure bottle 1 and a constant temperature heating device 2, the constant temperature heating device 2 is used to maintain the temperature of the pressure bottle 1 and heat the temperature of the pressure bottle 1, the pressure bottle 1 is provided with a volume control device 3 and an air pressure sensor 4, the volume control device 3 is used to control the volume of the gas in the pressure bottle 1, and the air pressure sensor 4 is used to detect the air pressure in the pressure bottle 1.
[0020] To elaborate further, the air pressure sensor 4 is connected to a fan 5, which is used to speed up the air flow in the air pressure bottle 1. Since air is a poor conductor of heat, it will cause a lag in temperature collection data. By providing a fan 5, the air flow in the bottle can be accelerated, making the air temperature distribution in the bottle relatively uniform, making the measurement data more accurate.
[0021] To elaborate further, the air pressure sensor 4 and the fan 5 are connected to a circuit board 6, which is used to receive signals from the air pressure sensor 4 and to control the switch of the fan 5. The air pressure sensor 4, the circuit board 6, and the fan 5 all adopt existing technologies. The air pressure sensor 4 can adopt MSS5803, BME680, BME280, etc.
[0022] To further elaborate, the volume control device 3 includes a syringe 7 and a connecting tube 8 for connecting to the bottom of the pressure bottle 1. The syringe 7 and the connecting tube 8 are connected by a silicone tube 9. The connecting tube 8 needs to be sealed with AB glue when passing through the pressure bottle 1. One end of the connecting tube 8 is connected to the syringe 7 by the silicone tube 9, and the other end of the connecting tube 8 is arranged at the bottom of the pressure bottle 1. When the experiment is performed, there is liquid in the pressure bottle 1, and the height of the liquid is higher than the outlet of the pressure bottle 1. The liquid is injected through the syringe 7 to control the other volume in the pressure bottle 1.
[0023] To be more specific, a water stop clamp 10 is provided on the silicone tube 9 , and the water stop clamp 10 is used to control the flow of liquid in the silicone tube 9 .
[0024] In further detail, a scale 11 is provided on the syringe 7, and the operator can judge the amount of liquid injected according to the scale 11, thereby obtaining the reduced volume of the gas in the pressure bottle 1.
[0025] In further detail, the constant temperature heating device 2 is provided with a container 12 for water bath heating of the pressure bottle 1, and the water bath heating can ensure that the pressure bottle 1 is heated evenly.
[0026] To further explain, the constant temperature heating device 2 includes a heating tube and a constant temperature tube. The heating tube is used to heat the container 12, and the constant temperature tube is used to maintain the temperature of the container 12. A temperature sensor is arranged in the container 12. When the temperature sensor detects that the temperature in the container 12 reaches the specified temperature, the heating tube is turned off and the constant temperature tube is turned on to ensure that the temperature of the container 12 is constant. The heating tube and the constant temperature tube adopt the existing technology and are located inside the constant temperature heating device 2. For the sake of clarity in the drawings, they are not marked in the drawings.
[0027] In further detail, the constant temperature heating device 2 is provided with a control button 13 for adjusting the temperature, which is convenient for the operator to operate quickly and control the temperature accurately.
[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0029] Although a large number of terms are used in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
Claims
1. A Gay-Lussac law demonstration teaching aid, characterized in that: The invention comprises a pressure bottle (1) and a constant temperature heating device (2), wherein the constant temperature heating device (2) is used to maintain the temperature of the pressure bottle (1) and to heat the temperature of the pressure bottle (1), and the pressure bottle (1) is provided with a volume control device (3) and a pressure sensor (4), wherein the volume control device (3) is used to control the volume of the gas in the pressure bottle (1), and the pressure sensor (4) is used to detect the pressure in the pressure bottle (1).
2. A Gay-Lussac's law demonstration teaching aid according to claim 1, characterized in that: The air pressure sensor (4) is connected to a fan (5), and the fan (5) is used to speed up the air flow in the air pressure bottle (1).
3. A Gay-Lussac's law demonstration teaching aid according to claim 2, characterized in that: The air pressure sensor (4) and the fan (5) are connected to a circuit board (6), and the circuit board (6) is used to receive signals from the air pressure sensor (4) and to control the switch of the fan (5).
4. A Gay-Lussac's law demonstration teaching aid according to claim 1, characterized in that: The volume control device (3) comprises a syringe (7) and a connecting tube (8) for communicating with the bottom of the gas pressure bottle (1); the syringe (7) and the connecting tube (8) are connected via a silicone tube (9).
5. A Gay-Lussac's law demonstration teaching aid according to claim 4, characterized in that: The silicone tube (9) is provided with a water stop clamp (10).
6. A Gay-Lussac law demonstration teaching aid according to claim 4, characterized in that: The syringe (7) is provided with a scale (11).
7. A Gay-Lussac's law demonstration teaching aid according to claim 1, characterized in that: The constant temperature heating device (2) is provided with a container (12) for water bath heating of the gas pressure bottle (1).
8. A Gay-Lussac's law demonstration teaching aid according to claim 7, characterized in that: The constant temperature heating device (2) comprises a heating tube and a constant temperature tube, the heating tube is used to heat the container (12), and the constant temperature tube is used to maintain the temperature of the container (12).
9. A Gay-Lussac's law demonstration teaching aid according to claim 1, characterized in that: The constant temperature heating device (2) is provided with a control button (13) for adjusting the temperature.