CN211207719U - Water three-state change demonstrator - Google Patents
Water three-state change demonstrator Download PDFInfo
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- CN211207719U CN211207719U CN202020127474.3U CN202020127474U CN211207719U CN 211207719 U CN211207719 U CN 211207719U CN 202020127474 U CN202020127474 U CN 202020127474U CN 211207719 U CN211207719 U CN 211207719U
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- water
- temperature sensor
- case
- tristate
- refrigerator
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000005485 electric heating Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 description 31
- 238000002474 experimental method Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a water three-state change demonstrator, which relates to the teaching aid field used in teaching, and comprises a case, and a refrigerating disc and an electric heating disc which are arranged on the upper surface of the case, wherein a refrigerator, an electric heater and a power plug are arranged in the case, the refrigerating disc is connected with the refrigerator, and the electric heating disc is connected with the electric heater; a rain cover is arranged above the electric heating plate; the rain-reducing cover is connected with the case through a support rod, and further comprises a transparent gas collecting cylinder and a transparent container capable of being heated by water, wherein the transparent gas collecting cylinder comprises a cylinder body and a gas guide pipe, one end of the cylinder body is an open end, the other end of the cylinder body is a closed end, an outlet connected with the gas guide pipe is arranged on the closed end, and a switch for controlling the gas circulation in the gas guide pipe is arranged on the gas guide pipe. The utility model discloses organically combine refrigerator, electric heater in an equipment, can real-time demonstration water tristate change.
Description
Technical Field
The utility model relates to a teaching aid field that the teaching was used, concretely relates to tristate change demonstration ware of water.
Background
The three states of water are gas, liquid and solid, and the water can be mutually converted among the three states through the conversion of temperature. For example, condensation of water vapor in air into clouds, fog, and dew is the change of water from a gaseous state to a liquid state; the water vapor in the air is solidified into snow and frost, and is the change of water from gas state to solid state; the liquid water is solidified into ice, which is the change of water from liquid to solid, and the tri-state change of water in nature is very common, but because of factors such as time, space and the like, the water is not easy to apply to teaching.
The tri-state change of water occupies much content in the teaching materials of primary school science, and the knowledge of the three aspects is also involved in middle school and colleges. For a long time, shaped and complete experimental instruments are not used for water tri-state teaching, particularly, water vapor is colorless and transparent, so students cannot observe the water vapor, and teachers can only explain the water vapor; the experiment of water icing and frosting is demonstrated by adding salt into ice blocks, and the actual operation is very inconvenient.
Disclosure of Invention
The utility model aims to provide a tristate change demonstration ware of water to among the prior art, the inconvenient problem that demonstrates the tristate change of water in the experiment teaching.
The technical scheme is as follows: a water three-state change demonstrator comprises a case, and a refrigerating disc and an electric heating disc which are arranged on the upper surface of the case, wherein a refrigerator and an electric heater are arranged in the case, the refrigerating disc is connected with the refrigerator, and the electric heating disc is connected with the electric heater; a rain cover is arranged above the electric heating plate; the rain cover is connected with the case through a support rod; the device also comprises a transparent gas collecting cylinder and a transparent container which can be heated by water, wherein the outer diameter of the transparent gas collecting cylinder is smaller than the inner diameter of the transparent container; the transparent gas collecting cylinder comprises a cylinder body and a gas guide tube, the other end of the cylinder body is a closed end, an outlet connected with the gas guide tube is arranged on the closed end, and a switch for controlling the gas circulation in the gas guide tube is arranged on the gas guide tube.
Furthermore, the first end of the supporting rod is connected with the rainfall cover, and the second end of the supporting rod is movably connected with the case;
furthermore, the raining shade consists of a flat plate and a coaming at the edge of the flat plate, and the coaming is arranged below the flat plate.
Furthermore, the water three-state change demonstrator also comprises a temperature sensor and a digital thermometer, wherein the digital thermometer is connected with the temperature sensor and is used for displaying the temperature value measured by the temperature sensor.
Furthermore, the number of the temperature sensors is 3, and the temperature sensors are a first temperature sensor, a second temperature sensor and a third temperature sensor.
Furthermore, the number of the digital thermometers is 3, and the digital thermometers are a first digital thermometer, a second digital thermometer and a third digital thermometer and are respectively and correspondingly connected with a first temperature sensor, a second temperature sensor and a third temperature sensor.
Furthermore, a slot is arranged on the case, and the second end of the supporting rod is placed in the slot.
Furthermore, a refrigerator switch and an electric heater switch are arranged on the case.
Furthermore, the digital thermometer is arranged on a first side surface of the case, and the refrigerator switch and the electric heater switch are arranged on a second side surface of the case, wherein the first side surface is opposite to the second side surface. Has the advantages that:
1. the utility model organically combines the refrigerator and the electric heater in one device, can demonstrate the three-state change of water in real time, uses the refrigerator to make ice, uses the electric heater to heat water vapor, uses the transparent gas collecting cylinder to observe the water vapor, uses the rainfall cover to simulate rainfall, uses the refrigerator to simulate frosting, is rapid and visual, and effectively solves the experimental teaching problem of the three-state change of water;
2. the design of the transparent gas collecting cylinder of the utility model enables students to clearly observe the existence of colorless and transparent vapor, and effectively distinguish the difference between the vapor and the white gas;
3. the utility model discloses the temperature variation of water can be observed in the design of temperature sensor and digital thermometer when demonstrating the tristate change of water, and digital thermometer shows temperature variation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a rear view schematic diagram of the temperature sensor of the present invention.
In the figure, a chassis-1; an electric hot plate-2; a refrigerating disc-3; a transparent container-4; a transparent gas collecting cylinder-5; a rain cover-6; a second digital thermometer-7; a third digital thermometer-8; a first digital thermometer-9; beaker-10; a power plug-11; an electric heater switch-12; refrigerator switch-13; a third temperature sensor-14; a second temperature sensor-15; a first temperature sensor-16; slot-17; switch-18; a support rod-19.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.
As shown in fig. 1 and 2, the water three-state change demonstrator comprises a case 1, and a refrigerating disc 3 and an electric heating disc 2 which are arranged on the upper surface of the case 1, wherein a refrigerator and an electric heater are arranged in the case 1, the refrigerating disc 3 is connected with the refrigerator, and the electric heating disc 2 is connected with the electric heater; the refrigerator and the electric heater are connected with a power plug 11;
a rain cover 6 is arranged above the electric heating plate 2; the rain hood consists of a flat plate and a coaming at the edge of the flat plate, and the coaming is arranged below the flat plate; the rain cover 6 is connected with the case 1 through a support rod 19, a first end of the support rod 19 is connected with the rain cover, a second end of the support rod 19 is movably connected with the case 1, a slot 17 is formed in the case 1, and a second end of the support rod 19 is placed in the slot 17.
The device also comprises a transparent gas collecting cylinder 5 and a transparent container 4 capable of being heated by water, wherein the transparent gas collecting cylinder 5 is matched with the transparent container 4 capable of being heated by water, and the outer diameter of the transparent gas collecting cylinder 5 is smaller than the inner diameter of the transparent container 4; the transparent gas collecting cylinder 5 comprises a cylinder body and a gas guide tube, the other end of the cylinder body is a closed end, an outlet connected with the gas guide tube is arranged on the closed end, and a switch 18 for controlling the gas circulation in the gas guide tube is arranged on the gas guide tube.
The water three-state change demonstrator also comprises a temperature sensor and a digital thermometer, wherein the digital thermometer is electrically connected with the temperature sensor and is used for displaying the temperature value measured by the temperature sensor. The case 1 is provided with a refrigerator switch 13 and an electric heater switch 12. The digital temperature display meter is arranged on a first side surface of the case 1, and the refrigerator switch 13 and the electric heater switch 12 are arranged on a second side surface of the case 1, wherein the first side surface is opposite to the second side surface.
The number of the temperature sensors is 3, and the temperature sensors are a first temperature sensor 16, a second temperature sensor 15 and a third temperature sensor 14; the number of the digital temperature display tables is 3, the digital temperature display tables are a first digital temperature table 9, a second digital temperature table 7 and a third digital temperature table 8, and the digital temperature display tables are respectively and correspondingly electrically connected with a first temperature sensor 16, a second temperature sensor 15 and a third temperature sensor 14.
The transparent container 4 capable of being heated by water is a beaker or other cylindrical transparent container capable of being heated.
The utility model is suitable for a tristate of school's science and well high grade school water changes teaching research, the utility model discloses can clearly and reveal the tristate of water change law accurately, reveal vapor and the difference of "white vapour" directly perceived, improve the intuition and the scientificity of experiment, let the student in the experiment is explored, understand knowledge, master technical ability, hoisting capacity.
The utility model discloses a use method as follows:
1. preparation before use:
the cabinet 1 was placed in the center of the laboratory bench, the power plug 11 was plugged, and 200ml of water was poured into each of the transparent container 4 and the beaker 10.
2. And (3) measuring the temperature of the normal-temperature water: a beaker 10 containing 200ml of water was placed on the upper surface of the cabinet 1, the second temperature sensor 15 was removed and placed in the beaker and left to stand for 2 minutes, and the temperature of the water was read from the second digital thermometer 7.
3. Observation and measurement of water vaporization: a transparent container 4 filled with 200ml of water is placed on the electric hot tray 2, the transparent gas collecting cylinder 5 is placed in the transparent container 4, the open end of the transparent gas collecting cylinder 5 faces downwards, the switch 18 of the gas guide tube of the transparent gas collecting cylinder 5 is opened, the transparent gas collecting cylinder 5 is completely immersed in the water, and the switch 18 of the gas guide tube is closed. A third temperature sensor 14 is inserted, an electric heater switch 12 is turned on to heat the water in the transparent container 4, a third digital thermometer 8 is observed to grasp the change of the water temperature, the transparent gas collecting cylinder 5 is observed to rise, and the existence of transparent vapor is observed. At the end of the experiment, the electric heater switch 12 was turned off.
4. Experiment of condensation of water vapor into water: continuing the evaporation observation and measurement experiment of water, taking out the transparent gas collecting cylinder 5, inserting the rainfall cover 6 on the slot 17, and condensing the water vapor in the rainfall cover to form rainfall. At the end of the experiment, the electric heater switch 12 was turned off.
5. Experimental observation of water freezing: 2ml of water is poured into the refrigerating disc 3, the first temperature sensor 16 is inserted, the refrigerator switch 13 is turned on, the first digital thermometer 9 is observed, and the form change of the water in the refrigerating disc 3 is observed. At the end of the experiment, the refrigerator switch 13 is closed.
6. Experimental observation of water frosting: and (3) continuing the vaporization observation and measurement experiment of the water, opening a switch (13) of the refrigerator, opening a switch (18) of the air duct of the transparent air collecting cylinder (5), spraying water vapor on the surface of the refrigerating disc (3) and observing the formation of frost. At the end of the experiment, the electric heater switch 12 and the refrigerator switch 13 are turned off.
As mentioned above, although the present invention has been shown and described with reference to certain preferred embodiments, it should not be construed as limiting the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope as defined by the appended claims.
Claims (9)
1. A water three-state change demonstrator is characterized by comprising a case (1), and a refrigerating disc (3) and an electric heating disc (2) which are arranged on the upper surface of the case (1), wherein a refrigerator and an electric heater are arranged in the case (1), the refrigerating disc (3) is connected with the refrigerator, and the electric heating disc (2) is connected with the electric heater;
a rain cover (6) is arranged above the electric heating disc (2); the rain cover is connected with the case (1) through a support rod (19);
the device also comprises a transparent gas collecting cylinder (5) and a transparent container (4) capable of being heated by water, wherein the outer diameter of the transparent gas collecting cylinder (5) is smaller than the inner diameter of the transparent container (4); the transparent gas collecting cylinder (5) comprises a cylinder body and a gas guide tube, the other end of the cylinder body is a closed end, an outlet connected with the gas guide tube is arranged on the closed end, and a switch (18) for controlling the gas circulation in the gas guide tube is arranged on the gas guide tube.
2. The water tristate change demonstrator of claim 1, further comprising a temperature sensor and a digital thermometer, said digital thermometer being electrically connected to said temperature sensor for displaying the temperature value measured by said temperature sensor.
3. The water tristate change demonstrator of claim 2, wherein said temperature sensors are 3 in number, being a first temperature sensor (16), a second temperature sensor (15) and a third temperature sensor (14).
4. The water tristate change demonstrator of claim 3, wherein said digital temperature display tables are 3, are a first digital temperature table (9), a second digital temperature table (7) and a third digital temperature table (8), and are electrically connected to the first temperature sensor (16), the second temperature sensor (15) and the third temperature sensor (14), respectively.
5. The water tristate change demonstrator of claim 1, wherein a first end of said support bar (19) is connected to said rainfly and a second end of said support bar (19) is movably connected to said cabinet (1).
6. The water tristate change demonstrator of claim 5, wherein said case (1) is provided with a slot (17), and said second end of said support rod (19) is placed in said slot (17).
7. The water tristate change demonstrator of claim 1, wherein said rainfly is comprised of a flat plate and a coaming at the edge of the flat plate, said coaming being disposed below the flat plate.
8. Water tristate change demonstrator according to claim 4, wherein said cabinet (1) is provided with a refrigerator switch (13) and an electric heater switch (12).
9. Water tristate change demonstrator according to claim 8, wherein said digital temperature display meter is arranged on a first side of said cabinet (1) and said refrigerator switch (13) and heater switch (12) are arranged on a second side of said cabinet (1), said first side being opposite to said second side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020127474.3U CN211207719U (en) | 2020-01-20 | 2020-01-20 | Water three-state change demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020127474.3U CN211207719U (en) | 2020-01-20 | 2020-01-20 | Water three-state change demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211207719U true CN211207719U (en) | 2020-08-07 |
Family
ID=71854150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020127474.3U Expired - Fee Related CN211207719U (en) | 2020-01-20 | 2020-01-20 | Water three-state change demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211207719U (en) |
-
2020
- 2020-01-20 CN CN202020127474.3U patent/CN211207719U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 |
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| CF01 | Termination of patent right due to non-payment of annual fee |