CN108417705A - A kind of organic/inorganic composite material thermoelectric generating device - Google Patents
A kind of organic/inorganic composite material thermoelectric generating device Download PDFInfo
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- CN108417705A CN108417705A CN201810400059.8A CN201810400059A CN108417705A CN 108417705 A CN108417705 A CN 108417705A CN 201810400059 A CN201810400059 A CN 201810400059A CN 108417705 A CN108417705 A CN 108417705A
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- inorganic composite
- thermocouple
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N19/00—Integrated devices, or assemblies of multiple devices, comprising at least one thermoelectric or thermomagnetic element covered by groups H10N10/00 - H10N15/00
- H10N19/101—Multiple thermocouples connected in a cascade arrangement
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/85—Thermoelectric active materials
- H10N10/851—Thermoelectric active materials comprising inorganic compositions
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Abstract
The present invention relates to a kind of organic/inorganic composite material thermoelectric generating devices, including heat source pipeline, the thermal electric generator further includes multiple organic/inorganic composite material electricity generation modules, multiple organic/inorganic composite material electricity generation modules are sequentially sleeved on the outside of heat source pipeline, two adjacent organic/inorganic composite material electricity generation modules are connected in series with by connector, the organic/inorganic composite material electricity generation module includes thermocouple and radiating fin, the radiating fin is sheathed on the outside of heat source pipeline, the thermocouple is arranged more, each thermocouple one end connects heat source pipeline, the other end connects radiating fin, more thermocouples form parallel and are distributed between heat source pipeline and radiating fin in flaabellum shape.Compared with prior art, present invention may effectively utilize limited spaces to obtain higher generated output, and thermal shock should get well, not limited by factors such as periphery territorial environments, applied widely.
Description
Technical field
The present invention relates to a kind of thermoelectric generating devices, are filled more particularly, to a kind of organic/inorganic composite material thermoelectric power generation
It sets.
Background technology
Thermoelectricity is that research realizes the subject directly converted between thermal energy and electric energy by thermoelectric material.With the whole world
The rapid growth of energy demand and higher and higher thermal management demand, thermoelectricity are widely paid close attention in recent years.And thermoelectricity
Device is mainly made of thermoelectric material, and thermoelectric material is a kind of new function material that thermal energy and electric energy may be implemented and mutually converts
Material, is widely used in thermoelectric power generation and thermoelectric cooling.It has long lifespan, simple in structure, high reliability, but disadvantage
It is also obvious that for example conversion efficiency of thermoelectric is low.The performance of thermoelectric material is assessed by thermoelectric figure of merit (ZT), ZT=(S2σT)/
κ, the Seebeck coefficient Ss with material itself, conductivityσ, thermal conductivity κ are related with absolute temperature T.Due to thermoelectricity transmission coefficient
It is all related with the band structure of thermoelectric material itself and carrier concentration.Therefore by the regulation and control of material composition, in certain journey
The thermoelectricity capability of material can be optimized on degree, and the thermal conductivity κ for reducing material is one of the effective way for improving thermoelectric figure of merit ZT.
Thermoelectric material is divided into p-type and n-type, by both material in series or individually can prepare thermo-electric device, the thermoelectricity
Device can be used for freezing and generate electricity.Traditional thermo-electric device is made of inorganic thermoelectric material, its advantage is that ZT values are larger, power
The factor is big, high temperature resistant, manufacturing technology are ripe, but disadvantage be also it will be apparent that it is toxic, quality is big, price is high, flexible poor, heat is rushed
Difference is hit, manufacturing process is required harsh.In recent years, the enhancing with environmental consciousness and the worry to future source of energy scarcity,
Waste heat is made full use of to obtain the close attention of people, and thermo-electric device can effectively utilize cogeneration.Pipeline hot water is useless
Gas is one of most common mode, especially carries the fluid of heat, it is however generally that, the temperature of spent heat-carrier rarely exceeds
120℃.But the bendability of pipeline to be limited using inorganic thermoelectric material, and for example some region temperature are very low, and cold and hot
Impact is easier that inorganic material is allowed to rupture.Therefore, be adapt to various territorial environments, and reduce cost and manufacturing process etc. because
Element needs to design a kind of organic/inorganic composite material thermoelectric generating device.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of organo-mineral complexings
Material thermoelectric generating device.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of organic/inorganic composite material thermoelectric generating device, including heat source pipeline, the thermal electric generator further include
Multiple organic/inorganic composite material electricity generation modules, multiple organic/inorganic composite material electricity generation modules are sequentially sleeved at heat source
On the outside of pipeline, adjacent two organic/inorganic composite material electricity generation modules are connected in series with by connector, the organic-inorganic
Composite material electricity generation module includes thermocouple and radiating fin, and the radiating fin is sheathed on the outside of heat source pipeline, the thermoelectricity
Even more of setting, each thermocouple one end connect heat source pipeline, and the other end connects radiating fin, and more thermocouples form the side of being connected in parallel
Formula is simultaneously distributed in flaabellum shape between heat source pipeline and radiating fin.
Preferably, the thermocouple is flexible organic/inorganic composite material thermocouple.
Preferably, the flexible organic/inorganic composite material thermocouple is that Kynoar adulterates nickel nano wire thermoelectricity
It is even.
Preferably, the thermocouple in each organic/inorganic composite material electricity generation module is p-type thermocouple.
Preferably, it is filled out by adiabatic insulating materials between more thermocouples in each organic/inorganic composite material electricity generation module
It fills.
Preferably, the connector includes that adiabatic insulation external member, hollow cylinder and conducting wire, the hollow cylinder are embedded
In heat source insides of pipes, the thermal insulation external member is sheathed on the outside of heat source pipeline, and the conducting wire is connected in series in both sides
The hot junction of organic/inorganic composite material electricity generation module and cold end.
Preferably, the radiating fin includes heat dissipation sleeve and wing leaf, and the radiating sleeve jacket casing is set to outside heat source pipeline
Side, wing leaf setting is multiple and is distributed on the outside of heat dissipation sleeve in radiant type.
Compared with prior art, the invention has the advantages that:
(1) thermocouple of the present invention is using flexible organic/inorganic composite material thermocouple, due to the flexibility characteristics of thermocouple, because
This is distributed in flaabellum shape between heat source pipeline and radiating fin, can effectively utilize limited space, addition heat as much as possible
Galvanic couple, to obtain higher generated output;
(2) Kynoar of the present invention adulterates nickel nano wire thermocouple, is made by adulterating inorganic nanowires in organic matter, greatly
Amplitude improves the conductivity and Seebeck coefficient of organic/inorganic composite material, meanwhile, the diffusion system of organic/inorganic composite material
Number is smaller, this has is degenerated and diffusing, doping makes under the performance of thermoelectric material using the contact performance reduced caused by diffusion
Influence caused by drop, and thermocouple makes simple, easy processing;
(3) organic/inorganic composite material electricity generation module of the present invention forms modularized design structure, can be real by connector
Being connected in series between existing multiple modules, theoretically can infinitely increase organic/inorganic composite material electricity generation module, to further
Improve generated output;
(4) for the present invention using single p-type thermocouple, alternative organic/inorganic composite material type is various, and series connection is more
It is convenient, it is easy to make;
(5) it is filled by adiabatic insulating materials between more thermocouples of the invention, it is mutual to can effectively prevent thermocouple
Influence, ensure that each thermocouple input voltage is similar;
(6) thermal shock of the present invention should be got well, and not limited by factors such as periphery territorial environments, applied widely.
Description of the drawings
Fig. 1 is the dimensional structure diagram under one visual angle of organic/inorganic composite material thermoelectric generating device of the present invention;
Fig. 2 is the dimensional structure diagram under another visual angle of organic/inorganic composite material thermoelectric generating device of the present invention;
Fig. 3 is the front view of organic/inorganic composite material electricity generation module of the present invention;
Fig. 4 is the structural schematic diagram of connector of the present invention;
Fig. 5 is the structural schematic diagram under organic/inorganic composite material thermoelectric generating device test mode of the present invention;
In figure, 1 is thermocouple, and 2 be heat source pipeline, and 3 be radiating fin, and 4 be organic/inorganic composite material electricity generation module, and 5 are
Connector, 6 be electronic load instrument, and 7 be adiabatic insulation external member, and 8 be hollow cylinder, and 9 be conducting wire.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.Note that the following embodiments and the accompanying drawings is said
Bright is substantial illustration, and the present invention is not intended to be applicable in it object or its purposes is defined, and the present invention does not limit
In the following embodiments and the accompanying drawings.
Embodiment
As shown in Figure 1 to 4, a kind of organic/inorganic composite material thermoelectric generating device, including heat source pipeline 2, heat source tube
Road 2 is for conveying waste liquid or exhaust gas, as heat source.Thermal electric generator further includes multiple organic/inorganic composite material electricity generation modules 4,
Multiple organic/inorganic composite material electricity generation modules 4 are sequentially sleeved at 2 outside of heat source pipeline, adjacent two organo-mineral complexing materials
Material electricity generation module 4 is connected in series with by connector 5, and organic/inorganic composite material electricity generation module 4 includes thermocouple 1 and radiating fin 3,
Radiating fin 3 is sheathed on 2 outside of heat source pipeline, and thermocouple 1 is arranged more, each organic/inorganic composite material power generation in the present embodiment
6 thermocouples 1 are arranged in module 4, and 1 one end of each thermocouple connects heat source pipeline 2, and the other end connects radiating fin 3, more thermocouples 1
It forms parallel and is distributed between heat source pipeline 2 and radiating fin 3 in flaabellum shape, at this point, heat source pipeline 2 is as inorganic
The hot junction of composite material electricity generation module, radiating fin 3 are the cold end of inorganic composite materials electricity generation module.Each organo-mineral complexing material
It is filled by adiabatic insulating materials between more thermocouples 1 in material electricity generation module 4, aeroge can be used in adiabatic insulating materials,
It is the influence for preventing thermocouple 1 mutual to fill purpose, ensures that 1 input voltage of each thermocouple is similar.
Thermocouple 1 is flexible organic/inorganic composite material thermocouple, and flexible organic/inorganic composite material thermocouple is poly- inclined
Vinyl fluoride adulterates nickel nano wire thermocouple, and the thermocouple 1 in each organic/inorganic composite material electricity generation module 4 is p-type thermocouple.
Organic/inorganic composite material can be made by adulterating inorganic nanowires in organic matter, and organic/inorganic composite material is greatly improved
Conductivity and Seebeck coefficient.Meanwhile the diffusion coefficient of organic/inorganic composite material is smaller, this has using reduction by spreading institute
Caused contact performance degenerates and diffusing, doping makes the performance of thermoelectric material decline caused influence.In addition to this, organic
The features such as inorganic composite materials are flexible, easy processing can effectively select optimum geometry so that it is simple to make thermocouple 1
Easy processing.Since generated output is with the reduction first increases and then decreases of 1 length of thermocouple, that is, there is best 1 length of thermocouple makes
It obtains generated output and reaches best, and the feature that organic/inorganic composite material is flexible, space usage amount can be effectively saved, to the greatest extent
Addition thermocouple 1 more than possible, to improve generated output, and the thermocouple 1 of organic/inorganic composite material manufacture is not managed
Road bending is influenced.Radiant type distribution, therefore 1 hot junction of all thermocouples and extraneous temperature is presented in thermocouple 1 centered on pipeline
Difference is essentially identical.Due to organic/inorganic composite material easy processing, this reduces the difficulty of the manufacturing process of radiant type distribution.This
Thermocouple 1 is chosen doping nickel (Ni) nano wire (volume fraction f=44.5%) in Kynoar (PVDF) and is made in embodiment
At thermocouple 1 is cut into after film again, 1 thermoelectricity transmission coefficient of single thermocouple is respectively S=-20.6 μ V/K, σ=4700S/
Cm, cross-sectional area 0.15mm2, length 1cm, temperature difference between the two ends 50K ideally (do not consider thermal contact resistance and contact
The influence of resistance) individual module (being made of 6 thermocouples 1) peak power output be 11.22 μ W.Organic nothing in the present embodiment
Machine composite material thermoelectric generating device is connected in series by two organic/inorganic composite material electricity generation modules 4, theoretically can be unlimited
Increase organic/inorganic composite material electricity generation module 4, to further increase generated output.For example, above-mentioned organic according to 10
4 phase of inorganic composite materials electricity generation module is connected, then ideally peak power output can reach 1.122mW.
Connector 5 includes that adiabatic insulation external member 7, hollow cylinder 8 and conducting wire 9, hollow cylinder 8 are embedded in heat source pipeline 2
Side, thermal insulation external member are sheathed on 2 outside of heat source pipeline, and conducting wire 9 is connected in series in both sides organic/inorganic composite material power generation mould
The hot junction of block 4 and cold end, the gap between insulation external member, hollow cylinder 8 and pipeline are filled with aeroge, are prevented short circuit, are subtracted
Small hot-fluid loss.
Radiating fin 3 includes heat dissipation sleeve and wing leaf, and radiating sleeve jacket casing is set to 2 outside of heat source pipeline, and the setting of wing leaf is multiple simultaneously
It is distributed on the outside of heat dissipation sleeve in radiant type.
As shown in figure 5, by electronic load instrument 6 can measure thermo-electric device generation open-circuit voltage, short circuit current, output work
The coefficients of performance such as rate.
The above embodiment is only to enumerate, and does not indicate that limiting the scope of the invention.These embodiments can also be with other
Various modes are implemented, and can make in the range of not departing from technical thought of the invention it is various omit, displacement, change.
Claims (7)
1. a kind of organic/inorganic composite material thermoelectric generating device, including heat source pipeline (2), which is characterized in that the heat hair
Electric installation further includes multiple organic/inorganic composite material electricity generation modules (4), multiple organic/inorganic composite materials power generation mould
Block (4) is sequentially sleeved on the outside of heat source pipeline (2), and adjacent two organic/inorganic composite material electricity generation modules (4) pass through connection
Device (5) is connected in series with, and the organic/inorganic composite material electricity generation module (4) includes thermocouple (1) and radiating fin (3), described
Radiating fin (3) be sheathed on the outside of heat source pipeline (2), the thermocouple (1) is arranged more, each thermocouple (1) one end connection
Heat source pipeline (2), the other end connect radiating fin (3), and more thermocouples (1) form parallel and are distributed in flaabellum shape
Between heat source pipeline (2) and radiating fin (3).
2. a kind of organic/inorganic composite material thermoelectric generating device according to claim 1, which is characterized in that the heat
Galvanic couple (1) is flexible organic/inorganic composite material thermocouple.
3. a kind of organic/inorganic composite material thermoelectric generating device according to claim 2, which is characterized in that described is soft
Property organic/inorganic composite material thermocouple (1) be Kynoar adulterate nickel nano wire thermocouple.
4. a kind of organic/inorganic composite material thermoelectric generating device according to claim 1, which is characterized in that each organic nothing
Thermocouple (1) in machine composite material electricity generation module (4) is p-type thermocouple.
5. a kind of organic/inorganic composite material thermoelectric generating device according to claim 1, which is characterized in that each organic nothing
It is filled by adiabatic insulating materials between more thermocouples (1) in machine composite material electricity generation module (4).
6. a kind of organic/inorganic composite material thermoelectric generating device according to claim 1, which is characterized in that the company
It includes that adiabatic insulation external member (7), hollow cylinder (8) and conducting wire (9), the hollow cylinder (8) are embedded in heat source tube to connect device (5)
On the inside of road (2), the thermal insulation external member is sheathed on the outside of heat source pipeline (2), and the conducting wire (9) is connected in series in both sides
The hot junction of organic/inorganic composite material electricity generation module (4) and cold end.
7. a kind of organic/inorganic composite material thermoelectric generating device according to claim 1, which is characterized in that described dissipates
Hot wing (3) includes heat dissipation sleeve and wing leaf, and the radiating sleeve jacket casing is set on the outside of heat source pipeline (2), wing leaf setting
It is multiple and in radiant type be distributed in heat dissipation sleeve on the outside of.
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Cited By (1)
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CN111816753A (en) * | 2019-06-18 | 2020-10-23 | 桂林电子科技大学 | Preparation method of paper substrate bismuth telluride-based nanowire flexible thermocouple type temperature sensor |
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