CN208207164U - Thermoelectric generator low-temperature characteristics experimental provision - Google Patents
Thermoelectric generator low-temperature characteristics experimental provision Download PDFInfo
- Publication number
- CN208207164U CN208207164U CN201820491459.XU CN201820491459U CN208207164U CN 208207164 U CN208207164 U CN 208207164U CN 201820491459 U CN201820491459 U CN 201820491459U CN 208207164 U CN208207164 U CN 208207164U
- Authority
- CN
- China
- Prior art keywords
- hot
- generation film
- cold
- face
- temperature
- 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
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model relates to a kind of thermoelectric generator low-temperature characteristics experimental provision, the experimental provision includes: cold end, and end face is smooth；Hot end, end face are smooth；Thermoelectric generation film uses liquid nitrogen as cold source, using hot water as heat source between the cold and hot end；Display unit is measured, for measuring cold end, hot-side temperature and display thermoelectric generation film output voltage and output current measurement value；With provide heat for heat source and adjust the circulating hot water circuit units of hot-side temperature；Between the thermoelectric generation film and the cold end, and copper sheet is provided between the thermoelectric generation film and the hot end, flat K-type thermocouple is equipped on the contact surface in the cold end face of copper sheet and the electric organ and on copper sheet and the contact surface in the hot end face of the thermoelectric generation film.The performance parameter of the low-temperature electricity-generating of thermoelectric generator can be measured by the experimental provision of the utility model, consequently facilitating the research to thermoelectric generator low-temperature electricity-generating performance.
Description
Technical field
The utility model belongs to thermoelectric generation field, in particular to a kind of thermoelectric generator low-temperature characteristics experiment dress
It sets.
Background technique
Thermoelectric generation is the technology that electric energy is directly converted heat into using the Seebeck effect of thermoelectric material, is had
Without increase engine loading, noiseless, it is small in size the features such as, be a kind of ideal Energy Recovery Technology.Utilize the temperature difference
It is that thermoelectric generator both ends have the certain temperature difference namely thermo-electric generation that generation technology, which carries out the premise that engine power recycling needs,
Device needs cold source and heat source.Current general thermo-electric generation is all based on room temperature even high temperature, if by thermoelectric generation
It is recycled applied to LNG engine power, relates to thermoelectric generator in the characteristic of low temperature, existing research shows that working as the temperature difference
Electricity generation module P-type material is Bi2Te3–Sb2Te3, n type material Bi2Te3–Bi2Se3, cold junction temperature 130K, hot-side temperature is
When 290K, the thermal conversion efficiency of thermo-electric generation system can reach 9%；Influence of the electromotive force by cold junction temperature is exported simultaneously,
When using above-mentioned identical material, result of study shows thermo-electric generation system output electricity when cold junction temperature is between -60 DEG C ~ -70 DEG C
Kinetic potential is maximum；When using 26 plate thermo-electric generation modules, reality is combined together using thermoelectric generation and open-shelf LNG gasification device
When the utilization of existing cold energy, if cold junction temperature is -120 DEG C, electricity generation module temperature difference between the two ends keep that 1.97W electricity can be exported when 120K
Energy.
As it can be seen that characteristic can occur significantly to change when thermoelectric generator is in low temperature environment, an energy is devised thus
Enough testing stands that thermoelectric generator low-temperature characteristics is studied, in order to study thermoelectric generator low-temperature characteristics.
Utility model content
The purpose of this utility model be it is in view of the above problems and insufficient, providing a kind of realization cold and hot end has
The thermoelectric generator low-temperature characteristics experimental provision of the different temperature difference provides convenience for research thermoelectric generator low-temperature characteristics.
To achieve the above object, the technical scheme adopted by the utility model is a kind of thermoelectric generator low-temperature characteristics is real
Experiment device, the experimental provision include: cold end, and end face is smooth；Hot end, end face are smooth；Thermoelectric generation film is located at described cold
Between end and hot end, use liquid nitrogen as cold source, using hot water as heat source；Display unit is measured, for measuring cold end, heat
Hold temperature and display thermoelectric generation film output voltage and output current measurement value；With provide heat for heat source and adjust hot end temperature
The circulating hot water circuit units of degree；Between the thermoelectric generation film and the cold end and thermoelectric generation film and the hot end
Between be provided at least one copper sheet, on the contact surface in the cold end face of copper sheet and the electric organ and copper sheet and the temperature
Flat K-type thermocouple is equipped on the contact surface in the hot end face of poor power generation sheet.
In the above-mentioned technical solutions, the outer profile size of the thermoelectric generation film is greater than the cold end outer profile size, makes
The end face of the cold end is completely covered in the cold end face for obtaining thermoelectric generation film.
In the above-mentioned technical solutions, the outer profile size of the thermoelectric generation film is greater than the hot end outer profile size, makes
The end face in the hot end is completely covered in the hot end face for obtaining thermoelectric generation film.
In the above-mentioned technical solutions, the cold end be using box like structure closed made of aluminum rectangular tube, in
Fill in liquid nitrogen.
In the above-mentioned technical solutions, the length and width of the cold end end face is respectively less than the cold end face of thermoelectric generation film
Length and width.
In the above-mentioned technical solutions, the hot end is using box like structure closed made of aluminum rectangular tube, far
One end from thermoelectric generation film is equipped with water inlet, is equipped with water outlet close to one end of thermoelectric generation film.
In the above-mentioned technical solutions, the length and width of the hot end end face is respectively less than the hot end face of thermoelectric generation film
Length and width.
In the above-mentioned technical solutions, the circulating hot water circuit units include water tank, temperature controller, electrically heated rod and water pump,
Water tank lower part water outlet is connect by water pipe and water pump with hot end water inlet, and the hot end water outlet passes through water pipe and is located at
The water inlet of the tank top connects, and the temperature sensor of the temperature controller is mounted on the tank inner wall, the temperature controller
Output end connect thyristor, the thyristor is connected on the heating circuit of electrically heated rod.
In the above-mentioned technical solutions, the tank outer wall is equipped with insulating layer.
In the above-mentioned technical solutions, insulation belt is wound on the pipe outer wall.
The beneficial effects of the utility model are: the experimental provision by the utility model can measure the low of thermoelectric generator
The performance parameter of temperature power generation, consequently facilitating the research to thermoelectric generator low-temperature electricity-generating performance, and pass through measurement display portion, side
Just, the numerical parameter of temperature difference volatility is intuitively observed.
It is provided with copper sheet between thermoelectric generation film and cold end and between thermoelectric generation film and hot end, increases thermal resistance
Value to reduce as heat transmitting and influence caused by experiment, and is easy to implement cold and hot end to inhibit the transmitting of heat
The adjusting of temperature.
The hot end of the utility model and cold end outer profile size are respectively less than thermoelectric generation film overall size, so that thermo-electric generation
The end face of hot end and cold end is completely covered in piece, prevents from being closer due to cold and hot end, and makes cold and hot end energy exchange
Seriously, influence of the energy loss to experiment is reduced.
The heat source of the utility model thermoelectric generation film is hot water, and hot water is heated by point heating rod, passes through temperature controller
Temperature is controlled, convenient for control hot water temperature, and thermal insulation material is respectively provided in the pipe outer wall of water tank and transmitting hot water, reduces heat
Loss, guarantee hot end have enough heats.
Detailed description of the invention
Fig. 1 is one of composition schematic diagram of the utility model
Fig. 2 is the two of the composition schematic diagram of the utility model.
Figure label: 1, cold end, 2, copper sheet, 3, flat K-type thermocouple, 4, thermoelectric generation film, 5 flat K-type thermocouples, 6,
Copper sheet, 7, hot end, 8, cold junction temperature measuring instrumentss, 9, multimeter, 10, hot-side temperature measuring instrumentss, 11, temperature controller, 12, water
Case, 13, water pump.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower" " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", " numerical value ", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the present invention
Limitation.In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected, can be and be directly connected to, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
The concrete meaning of invention.In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " several " be meant that two or
It is more than two
As shown in Figure 1, the utility model embodiment is a kind of thermoelectric generator low-temperature characteristics experimental provision, comprising: cold end
1, hot end 7 and thermoelectric generation film 4, for thermoelectric generation film 4 between cold end 1 and hot end 7, thermoelectric generation film 4 uses liquid nitrogen conduct
Cold source constitutes thermoelectric generator as heat source using hot water.Copper sheet 2, table on copper sheet 2 are set between thermoelectric generation film 4 and cold end 1
1 lower end surface of cold end is close in face, and the cold end end face of temperature electric organ is close in 2 lower end surface of copper sheet, between thermoelectric generation film 4 and hot end 7
It is provided at least copper sheet 6,7 upper surface of hot end is close in 6 lower surface of copper sheet, and 6 upper surface of copper sheet and the hot end of thermoelectric generation film 4 are tight
Patch.It is provided at least one copper sheet between thermoelectric generation film 6 and cold end 1 and between thermoelectric generation film 4 and hot end 7, is increased
Resistance value is heated, to inhibit the transmitting of heat, to reduce as heat transmitting and influence caused by experiment, and is easy to implement cold end
With the adjusting of hot-side temperature.The quantity of copper sheet can be depending on experimental situation and the demand of other experiment conditions.
Due to during the test since thermoelectric generator size is smaller, cold end 1 and hot end 7 are closer, so that cold
The energy exchange in end 1 and hot end 7 is more serious, and the temperature at both ends can be made to reach unanimity, and the present embodiment is by cold end 1 and heat thus
The outer profile size at end 7 is less than thermoelectric generator outer profile size, and then reduction is influenced as caused by heat transmitting.It is specially warm
The outer profile size of poor power generation sheet 4 be greater than 1 outer profile size of cold end so that the cold end face of thermoelectric generation film be completely covered it is described cold
The outer profile size of the end face at end, thermoelectric generation film 4 is greater than 7 outer profile size of hot end, so that the hot end face of thermoelectric generation film is complete
The end face in all standing hot end 1.Thermoelectric generation film 4, hot end 1 and cold end 2 can have any shape, and the shape of three is preferably consistent.
The model F30345 of the thermoelectric generator piece of the present embodiment, having a size of 40 mm × 40 mm × 3.8mm, internal resistance is 2.4 Ω.
Cold end 1 is using box like structure closed made of the aluminum rectangular tube having a size of (long × wide) 30mm × 30mm, box like structure
Cold end 1 be equipped with closed note nitrogen mouth, inside fill in liquid nitrogen, liquid nitrogen is as cold source.At this point, the length and width of 1 end face of cold end
Degree is respectively less than the length and width in the cold end face of thermoelectric generation film.Hot end 7 is using having a size of (long × wide) 30mm × 30mm
Closed box like structure made of aluminum rectangular tube, hot end is equipped with water inlet far from one end of thermoelectric generation film 4, close to the temperature difference
One end of power generation sheet 4 is equipped with water outlet.At this point, the length and width of 7 end face of hot end is respectively less than the hot end face of thermoelectric generation film 4
Length and width.
The experimental provision of the present embodiment further includes measurement display unit, for measuring cold end 1,7 temperature of hot end and display
6 output voltage of thermoelectric generation film and output current measurement value；With provide heat for heat source and adjust the circulating hot water of hot-side temperature
Circuit units.Measuring display unit includes cold junction temperature measuring instrumentss 10, hot-side temperature measuring instrumentss 8 and multimeter 9, cold end temperature
The thermocouple of degree measuring instrumentss is set to the cold end of copper sheet 2 and thermoelectric generation film 4 as shown in the figure using flat K-type thermocouple
Flat K-type thermocouple 3 between face connects cold junction temperature measuring instrumentss 8, for measuring and showing cold junction temperature.It is set to copper sheet
Flat K-type thermocouple 6 between 6 and the hot end face of thermoelectric generation film 4 connects hot-side temperature measuring instrumentss 10, for measuring and showing
Show hot-side temperature.Multimeter 6 is connect with thermoelectric generation film 4, for measuring and showing 4 output voltage of thermoelectric generation film and output electricity
Flow measure.The temperature in hot end, cold end can be intuitively observed by measuring display unit, and show the electric current of thermoelectric generation film
And voltage value is convenient for temperature electric organ low-temperature electricity-generating convenient for recording the electric current of the different temperature difference and the situation of change of voltage
Analysis and research.Flat K-type thermocouple 3 and flat K-type thermocouple 6 are all made of the flat K-type thermocouple of Taiwan Thailand bodyguard production, should
The wide 3.7mm in thermocouple temperature measurement part, thick 0.28mm, precision ± 0.5 DEG C, reaction time 2.50s.
Circulating hot water circuit units include water tank 12, temperature controller 11, electrically heated rod (not shown) and water pump 13, water tank
12 lower part water outlets are connect by water pipe and water pump 13 with 7 water inlet of hot end, and 7 water outlet of hot end is by water pipe and is located at water tank 12
The water inlet at top connects, and the temperature sensor of temperature controller 11 is mounted on tank inner wall, and the output end of the temperature controller connects brilliant
Brake tube, thyristor are connected on the heating circuit of electrically heated rod.Temperature controller, thyristor and electrically heated rod are commercial product,
This is not illustrated, as long as being able to achieve temperature control.Alternatively, it is also possible to use other temperature automatically controlled technological means,
For example controller, temperature sensor and electrically heated rod are used, the temperature of water in the water tank that controller is acquired by temperature sensor
And then whether controlling the switch energization of electrically heated rod.The heat of hot water distributes in water tank 12 in order to prevent, on 12 outer wall of water tank
Insulating layer is set or water tank 12 uses insulated water tank.It is wound on water pipe between above-mentioned connection hot end 1, water pump and water tank
There is insulation belt, to reduce scattering and disappearing for heat.
To contact thermoelectric generator well with cold and hot end, in thermoelectric generator and copper sheet 2,6 and copper sheet 2,6
Equal full-filling heat conductive silica gel between the contact surface in corresponding cold end 1 and hot end 7, adjacent copper sheet increases heating conduction.
Using the method that the utility model carries out thermoelectric generator low-temperature characteristics: power on, heats electrically heated rod, when
When water reaches certain temperature in water tank 12, opening water pump 13 makes hot water enter hot end 7, liquid nitrogen is added to cold end 1 at this time, in liquid nitrogen
In filling process, the voltage and current value of the output of cold end 1, the temperature in hot end 7 and thermoelectric generation film 6 is observed and recorded, from
And thermoelectric generator characteristic under low-temperature condition is studied.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of thermoelectric generator low-temperature characteristics experimental provision, which is characterized in that the experimental provision includes: cold end, end face
It is smooth；
Hot end, end face are smooth；
Thermoelectric generation film uses liquid nitrogen as cold source, using hot water as heat source between the cold and hot end；
Display unit is measured, is surveyed for measuring cold end, hot-side temperature and display thermoelectric generation film output voltage and output electric current
Magnitude；With provide heat for heat source and adjust the circulating hot water circuit units of hot-side temperature；
At least one is provided between the thermoelectric generation film and the cold end and between the thermoelectric generation film and the hot end
A copper sheet, on the contact surface in the cold end face of the copper sheet and the electric organ and hot end face of copper sheet and the thermoelectric generation film
Flat K-type thermocouple is equipped on contact surface.
2. thermoelectric generator low-temperature characteristics experimental provision according to claim 1, which is characterized in that the thermoelectric generation film
Outer profile size be greater than the cold end outer profile size so that the end of the cold end is completely covered in the cold end face of thermoelectric generation film
Face.
3. thermoelectric generator low-temperature characteristics experimental provision according to claim 1, which is characterized in that the thermoelectric generation film
Outer profile size be greater than the hot end outer profile size so that the end in institute hot end is completely covered in the hot end face of thermoelectric generation film
Face.
4. thermoelectric generator low-temperature characteristics experimental provision according to claim 1 or 2, which is characterized in that the cold end is
Using box like structure closed made of aluminum rectangular tube, liquid nitrogen is inside filled in.
5. thermoelectric generator low-temperature characteristics experimental provision according to claim 4, it is characterised in that: the cold end end face
Length and width be respectively less than thermoelectric generation film cold end face length and width.
6. thermoelectric generator low-temperature characteristics experimental provision according to claim 1 or 2, which is characterized in that the hot end is
Using box like structure closed made of aluminum rectangular tube, one end far from thermoelectric generation film is equipped with water inlet, close to temperature
One end of poor power generation sheet is equipped with water outlet.
7. thermoelectric generator low-temperature characteristics experimental provision according to claim 6, which is characterized in that the hot end end face
Length and width be respectively less than thermoelectric generation film hot end face length and width.
8. thermoelectric generator low-temperature characteristics experimental provision according to claim 1, which is characterized in that the circulating hot water returns
Road unit includes water tank, temperature controller, electrically heated rod and water pump, water tank lower part water outlet by water pipe and water pump and hot end into
Mouth of a river connection, the hot end water outlet are connect by water pipe with the water inlet for being located at the tank top, the temperature of the temperature controller
Degree sensor is mounted on the tank inner wall, and the output end of the temperature controller connects thyristor, and the thyristor is connected to electricity and adds
On the heating circuit of hot pin.
9. thermoelectric generator low-temperature characteristics experimental provision according to claim 8, which is characterized in that the tank outer wall
It is equipped with insulating layer.
10. thermoelectric generator low-temperature characteristics experimental provision according to claim 8, which is characterized in that outside the water pipe
Insulation belt is wound on wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820491459.XU CN208207164U (en) | 2018-04-09 | 2018-04-09 | Thermoelectric generator low-temperature characteristics experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820491459.XU CN208207164U (en) | 2018-04-09 | 2018-04-09 | Thermoelectric generator low-temperature characteristics experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208207164U true CN208207164U (en) | 2018-12-07 |
Family
ID=64525759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820491459.XU Expired - Fee Related CN208207164U (en) | 2018-04-09 | 2018-04-09 | Thermoelectric generator low-temperature characteristics experimental provision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208207164U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824339A (en) * | 2019-10-22 | 2020-02-21 | 苏州盛科科技有限公司 | Constant temperature control device and method for aging screening test of switch chip |
| CN112781764A (en) * | 2020-12-31 | 2021-05-11 | 天津大学 | Low-temperature semiconductor thermoelectric generator power generation efficiency testing device and testing method |
| CN115877103A (en) * | 2022-12-06 | 2023-03-31 | 中国原子能科学研究院 | Device for testing thermoelectric device |
-
2018
- 2018-04-09 CN CN201820491459.XU patent/CN208207164U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824339A (en) * | 2019-10-22 | 2020-02-21 | 苏州盛科科技有限公司 | Constant temperature control device and method for aging screening test of switch chip |
| CN112781764A (en) * | 2020-12-31 | 2021-05-11 | 天津大学 | Low-temperature semiconductor thermoelectric generator power generation efficiency testing device and testing method |
| CN115877103A (en) * | 2022-12-06 | 2023-03-31 | 中国原子能科学研究院 | Device for testing thermoelectric device |
| CN115877103B (en) * | 2022-12-06 | 2024-02-20 | 中国原子能科学研究院 | Device for testing thermoelectric device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208207164U (en) | Thermoelectric generator low-temperature characteristics experimental provision | |
| CN103532439B (en) | A kind of pair type temperature difference electricity generation device | |
| CN110445419B (en) | Hydrothermal circulation type thermoelectric power generation system capable of realizing parameter accurate regulation and control and measurement | |
| CN101961207A (en) | Semiconductor cooling/heating device | |
| Rahaei et al. | A photovoltaic thermal system with a complete contact between water and PV modules suitable for district heating and electric power generation | |
| Zaitsev et al. | Hybrid solar generating module development for high-efficiency solar energy station | |
| CN210349878U (en) | Sleeve type semiconductor assembly, air conditioner and thermoelectric power generation device | |
| CN107727951A (en) | A kind of thermo-electric generation monomer module thermoelectricity capability test table | |
| CN101997455A (en) | Semiconductor temperature difference power generation device for cold energy recovery power generation | |
| Zhiqiang et al. | Water-in-glass manifolds for heat extraction from evacuated solar collector tubes | |
| US20150300693A1 (en) | Heat Storage Tank Used In Solar Heat Power System, Solar Heat Dynamo Used Therein And Solar Heat Power System Including The Same | |
| CN103489948A (en) | Semiconductor component with optical cold/optical heat conversion function | |
| CN207602734U (en) | A kind of power battery thermal management system | |
| CN206322817U (en) | Power battery thermal management system based on semiconductor refrigeration piece | |
| CN206806769U (en) | A kind of temperature indicating ring main unit | |
| CN206291525U (en) | A kind of semiconductor thermostatic and temperature component | |
| CN202066620U (en) | Temperature calibration device for light-duty semiconductor refrigeration | |
| CN210269687U (en) | Experimental tester for thermovoltaic power generation | |
| CN110504866A (en) | A kind of in-pipeline detector automatic switchover type temperature difference electricity generation device | |
| CN203299661U (en) | Liquid source temperature controller provided with semiconductor chilling plate | |
| CN206774057U (en) | A kind of pyroelectric effect instrument | |
| CN206354814U (en) | A kind of thermostatic glass of utilization semiconductor PTC cooling pieces | |
| CN209462283U (en) | A kind of dual temperature layer heat volt power generator | |
| CN203456484U (en) | Semiconductor component with light refrigeration/heating conversion function | |
| CN106876824A (en) | A kind of semiconductor chilling plate Double-direction Temperature control device for button cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20200409 |