CN2560055Y - Heat transfer demonstration instrument - Google Patents
Heat transfer demonstration instrument Download PDFInfo
- Publication number
- CN2560055Y CN2560055Y CN 02263914 CN02263914U CN2560055Y CN 2560055 Y CN2560055 Y CN 2560055Y CN 02263914 CN02263914 CN 02263914 CN 02263914 U CN02263914 U CN 02263914U CN 2560055 Y CN2560055 Y CN 2560055Y
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- China
- Prior art keywords
- demonstration
- molten bath
- bath box
- pipe
- demonstrator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 150000003839 salts Chemical class 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 238000009835 boiling Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 4
- 230000008020 evaporation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- RIRXDDRGHVUXNJ-UHFFFAOYSA-N [Cu].[P] Chemical compound [Cu].[P] RIRXDDRGHVUXNJ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The heat transfer demonstration instrument has one molten bath box and at least two demonstration tubes of different heat conductivity, and the molten bath box has heater in the bottom and the demonstration tubes penetrating the test tube holes of the molten bath box cover and with lower end inserted into the heat supplying medium inside the molten bath box. The utility model discloses a difference of different thermal conductivity materials on heat transfer helps the worker crowd to know heat transfer and transfer rate physics notion, observes physics phenomena such as material tristate change, evaporation boiling and super heat conduction principle. The utility model is provided with the demonstration tubes made of different materials, different working media and structures, and the demonstration tubes are selected according to requirements during demonstration, so that the reflected phenomenon is comprehensive; the operation is simple and convenient; a temperature and time display screen is adopted, so that the demonstration is more visual and clear; the demonstration tube is inserted into the fused salt heat supply medium, the fused salt is solid at normal temperature, the effect of fixing the demonstration tube can be achieved, the demonstration instrument is convenient to store, the fused salt is melted when being heated to 50-60 ℃, the temperature in the molten pool box is uniform, and the demonstration correctness is guaranteed.
Description
Technical field
The utility model relates to the heat transferred demonstrator in a kind of science and education apparatus.
Background technology
China Patent No. is 91232206.3, name is called in the utility application instructions of " the multi-functional demonstration device of solid-liquid gas breathing " has introduced a kind of heat conduction demonstration device, it has two glass tubes that seal the bottom, two glass tubes are fixed on the display board by spring leaf, the lower closed end of two glass tubes is inserted on the sheet metal that places small container respectively and little foam, injecting the red little liquid of a small amount of equal in length in the glass tube of the zero graduation position of display board annotates, seal the air of bottom in the pipe, slowly pour a small amount of hot water into along the small container inwall, make the situation of change of two little fluid column positions after gas expands in the glass tube after observation sheet metal and the heat conduction of vesicle foam.Above-mentioned heat conduction demonstration device operation is than complexity and certain limitation is arranged.
The utility model content
The purpose of this utility model is to propose a kind of more comprehensive heat transferred demonstrator of phenomenon of easy to operate and reflection.
For achieving the above object, the heat transfer element that the utlity model has molten bath box and at least two different thermal conductivities is promptly demonstrated pipe, and box bottom in molten bath is provided with heating element, is provided with heating medium in the box of molten bath, the demonstration pipe passes the test tube hole of molten bath lid respectively, and the lower end inserts in the heating medium.
Heating medium in the box of above-mentioned molten bath is the fused salt that comprises paraffin.
Above-mentioned demonstration pipe have metal tube, nonmetallic pipe, in be equipped with look water conservancy project matter sealed glass tubes, in look water conservancy project matter is housed sealing vacuumize glass tube, in colour chemistry working medium is housed sealing vacuumize glass tube, engineering with small-sized gravity super heat-conductive pipe; Demonstrator can adopt whole demonstration pipes, also can adopt the combination of part demonstration pipe.
Above-mentioned demonstrator has temperature-time display screen and control circuit thereof, and the upper end of every demonstration pipe is connected with temperature sensor, is provided with temperature sensor in the heating medium of molten bath box, and temperature sensor all is connected with control circuit.
The bottom of above-mentioned molten bath box is provided with base, the rear portion of molten bath box is provided with the support that is fixed on the base, display screen can be arranged on the demonstrator outside, also can be fixed on the support or is fixed on the base, and the circuit board of control circuit and direct supply are installed in the base cavity; Support is provided with mini-fan, be equipped with in the above-mentioned demonstration pipe sealing of look water conservancy project matter vacuumize glass tube and in the sealing of colour chemistry working medium is housed vacuumizes glass tube and be plugged in the test tube hole of molten bath lid in mini-fan the place ahead.
The utility model helps worker's many understandings heat transferred and transfer rate physical concept by the difference of different thermal conductivity materials on heat transferred, observes physical phenomenon and superconduction pyrogen reasons such as the three states of matters changes, evaporation boiling.The utility model is provided with the demonstration pipe of various unlike materials, different working medium and structure, selects as required when demonstration, and the phenomenon of reflection is more comprehensive; Simple to operation, only need open or close switch; Adopt the temperature and time display screen, make demonstration more intuitive, clear; The demonstration pipe is plugged in the fused salt heating medium, and it is solid-state that fused salt is at normal temperatures, can play fixing demonstration pipe, makes things convenient for the keeping of demonstrator, and fused salt melts when being heated to 50～60 ℃, and the temperature in the box of molten bath is even, guarantees the correctness of demonstration.
Description of drawings
Fig. 1 is embodiment 1 configuration diagram;
Fig. 2 is embodiment 2 configuration diagram;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is the circuit diagram of embodiment 2.
Embodiment
Embodiment 1
Embodiment 1 shown in Figure 1 has molten bath box 6, and molten bath box 6 adopts the transparent high temperature resistant polypropylene to make, and the bottom of molten bath box 6 is provided with base 1, and the heating medium 6-1 in the molten bath box 6 adopts paraffin.Box 6 bottoms in molten bath are provided with heating element 4, the heating element 4 general PCT heater elements that adopt, and power supply is the 220V alternating current, supplies with PCT heating element 4 through switch 2-1.Demonstration pipe 7 have metal tube, nonmetallic pipe, in be equipped with look water conservancy project matter sealed glass tubes, in look water conservancy project matter is housed sealing vacuumize glass tube, in colour chemistry working medium is housed sealing vacuumize glass tube and engineering with small-sized gravity super heat-conductive pipe; Demonstrator can adopt whole demonstration pipes, also can adopt the combination of part demonstration pipe.Embodiment 1 adopts whole 6 demonstration pipes, be respectively red copper metal tube, glass or plastics non-metallic rods, in be equipped with look distilled water working medium sealed glass tubes, in look distilled water working medium is housed sealing vacuumize glass tube, in look industrial spirit or high-efficiency superconducting heat transfer composite chemical working medium is housed sealing vacuumize glass tube and aluminum hull ammonia-water mixture engineering with small-sized gravity super heat-conductive pipe; The demonstration pipe passes the test tube hole of molten bath lid 6-2 respectively, and the lower end inserts in the heating medium paraffin.Above-mentioned requirement for distilled water working medium " coloured " is the variation that takes place in the glass tube for the ease of seeing clearly, and color can be selected arbitrarily.During demonstration, open switch 2-1, the PCT heating, the paraffin melted by heat, the demonstration pipe is heated, can be in this process by touch the difference of the heat conductivility of feeling different medium with hand, the same distilled water working medium that detects by an unaided eye in air with vacuum in the low-temperature boiling phenomenon of heat conducting different and different working medium under the situation of vacuum and the difference of heat transferred speed.
Embodiment 2
Fig. 2 and embodiment 2 shown in Figure 3 are on the basis of embodiment 1, temperature and time display screen 11 and control circuit 12 thereof are set, and temperature and time display screen socket 3 is housed at the rear side of base 1, both sides are equipped with switch 2-1,2-2 respectively, and the circuit board of control circuit 12 and DC current are installed in the base cavity 1-2.Temperature and time display screen 11 and control circuit 12 thereof are mature technologies, no longer carefully state.The upper end of every demonstration pipe 7 is equipped with temperature sensor 9, temperature sensor 9 adopts the NTC thermistor to be fixed on the special phosphor-copper clamp inwall, and clamp is fixed on the upper end of demonstration pipe 7, adopts the clamp form, be convenient to mounting or dismounting, convenient demonstration pipe takes off in presentation process or is inverted.Be provided with temperature sensor 5 in the heating medium paraffin 6-1 of molten bath box 6, temperature sensor 5 is used for detecting the temperature of heating medium 6-1, is convenient to the temperature of molten bath box 6 is controlled.Temperature sensor 9 all is connected with control circuit 12 with temperature sensor 5, the rear portion of molten bath box 6 is provided with the support 10 that is fixed on the base 1, temperature and time display screen 11 can be arranged on the demonstrator outside, also can be fixed on the support 10 or be fixed on the base 1, present embodiment takes temperature and time display screen 11 to hang on the frame outside the demonstrator.Support 10 is provided with mini-fan 8, in be equipped with look water conservancy project matter sealing vacuumize glass tube and in the sealing of colour chemistry working medium is housed vacuumizes glass tube and be plugged in the test tube hole of molten bath lid 6-1 in mini-fan 8 the place aheads, when above-mentioned two demonstration Guan Zaizuo evaporate boiling phenomenons, when the two ends temperature near the time, the evaporation boiling phenomenon of glass intraductal working medium obviously weakens, and until stopping, at this moment starting mini-fan 8, upper end blowing radiating and cooling to two demonstration pipes is continued the evaporation boiling phenomenon.From the temperature and time display screen, can observe the temperature difference at each demonstration pipe two ends and the speed that demonstration pipe upper end temperature rises.
Fig. 4 is the circuit diagram of embodiment 2, and 220V AC power one tunnel is supplied with PCT heating element 4, a tunnel through switch 2-1 and offered mini-fan 8 through step-down rectifier by switch 2-2, Third Road through step-down rectifier according to supplying with each temperature sensor and temperature and time display screen.The control of molten bath box maximum temperature and the startup of time showing can be controlled automatically, also can be manual.
Claims (5)
1, a kind of heat transferred demonstrator, has demonstration pipe (7), it is characterized in that: demonstrator has the heat transfer element of molten bath box (6) and at least two different thermal conductivities and promptly demonstrates pipe (7), molten bath box (6) bottom is provided with heating element (4), be provided with heating medium (6-1) in the molten bath box (6), demonstration pipe (7) passes the test tube hole of molten bath lid (6-2) respectively, and the lower end inserts in the heating medium (6-1).
2, heat transferred demonstrator according to claim 1 is characterized in that: the heating medium in the molten bath box (6) is the fused salt that comprises paraffin.
3, heat transferred demonstrator according to claim 2 is characterized in that: demonstration pipe (7) have metal tube, nonmetallic pipe, in be equipped with look water conservancy project matter sealed glass tubes, in look water conservancy project matter is housed sealing vacuumize glass tube, in colour chemistry working medium is housed sealing vacuumize glass tube and engineering with small-sized gravity super heat-conductive pipe; Demonstrator can adopt whole demonstration pipes, also can adopt the combination of part demonstration pipe.
4, according to claim 1,2 or 3 described heat transferred demonstrators, it is characterized in that: demonstrator has temperature and time display screen (11) and control circuit (12) thereof, the upper end of every demonstration pipe (7) is connected with temperature sensor (9), be provided with temperature sensor (5) in the heating medium (6-1) of molten bath box (6), temperature sensor (9,5) all is connected with control circuit (12).
5, heat transferred demonstrator according to claim 4, it is characterized in that: the bottom of molten bath box (6) is provided with base (1), the rear portion of molten bath box (6) is provided with the support (10) that is fixed on the base (2), display screen (11) can be arranged on the demonstrator outside, also can be fixed on support (10) and go up or be fixed on the base (1), the circuit board of control circuit (12) and direct supply are installed in the base cavity (1-2); Support (10) is provided with mini-fan (8), be equipped with in the above-mentioned demonstration pipe sealing of look water conservancy project matter vacuumize glass tube and in the sealing of colour chemistry working medium is housed vacuumizes glass tube and be plugged in the test tube hole of molten bath lid (6-1) in mini-fan (8) the place ahead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02263914 CN2560055Y (en) | 2002-08-22 | 2002-08-22 | Heat transfer demonstration instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02263914 CN2560055Y (en) | 2002-08-22 | 2002-08-22 | Heat transfer demonstration instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2560055Y true CN2560055Y (en) | 2003-07-09 |
Family
ID=33730206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02263914 Expired - Fee Related CN2560055Y (en) | 2002-08-22 | 2002-08-22 | Heat transfer demonstration instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2560055Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646589A (en) * | 2013-11-27 | 2014-03-19 | 西安理工大学 | A method for demonstrating an influence factor of the heat-dissipating efficiency of a heat-conducting pipe heat dissipater |
| CN106710385A (en) * | 2017-02-28 | 2017-05-24 | 王竞锐 | Heat pipe teaching demonstration instrument |
| CN106935114A (en) * | 2017-04-27 | 2017-07-07 | 东北师范大学 | A kind of capacity of heat transmission contrast apparatus for demonstrating based on heat pipe |
-
2002
- 2002-08-22 CN CN 02263914 patent/CN2560055Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646589A (en) * | 2013-11-27 | 2014-03-19 | 西安理工大学 | A method for demonstrating an influence factor of the heat-dissipating efficiency of a heat-conducting pipe heat dissipater |
| CN103646589B (en) * | 2013-11-27 | 2016-06-01 | 西安理工大学 | A kind of method for showing heat pipe radiator heat radiation efficiency affecting factors |
| CN106710385A (en) * | 2017-02-28 | 2017-05-24 | 王竞锐 | Heat pipe teaching demonstration instrument |
| CN106710385B (en) * | 2017-02-28 | 2024-07-12 | 王竞锐 | Heat pipe teaching demonstration instrument |
| CN106935114A (en) * | 2017-04-27 | 2017-07-07 | 东北师范大学 | A kind of capacity of heat transmission contrast apparatus for demonstrating based on heat pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030709 Termination date: 20090922 |