CN107171598B - A kind of polar region thermo-electric generation system - Google Patents
A kind of polar region thermo-electric generation system Download PDFInfo
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- CN107171598B CN107171598B CN201710568164.8A CN201710568164A CN107171598B CN 107171598 B CN107171598 B CN 107171598B CN 201710568164 A CN201710568164 A CN 201710568164A CN 107171598 B CN107171598 B CN 107171598B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
Abstract
The invention discloses a kind of polar region thermo-electric generation system, including cabin, gas-liquid phase transition heat-transfer device, temperature difference electricity generation device and gravity drive boil-condense liquid cooling apparatus, burner hearth is provided in cabin, roof of the furnace connects the flue that a upper end is stretched out outside cabin；Gas-liquid phase transition heat-transfer device includes the thermally conductive board group of the first gas-liquid phase transition in burner hearth and the thermally conductive board group of the second gas-liquid phase transition in flue；The gravity drive liquid cooling apparatus that boils-condense includes serpentine channel cooling device and tedge positioned at boiling lateral；The gravity drive liquid cooling apparatus that boils-condense further includes cold cooling unit, down-comer and lower collecting box positioned at condensation side；Serpentine channel cooling device includes the first cooling duct group and the second cooling duct group, and the thermoelectric generation film of the temperature difference electricity generation device is arranged between cooling duct and the thermally conductive plate of gas-liquid phase transition.The shortcomings that electricity generation system of the present invention overcomes diesel power generation can reduce the cost of the electricity consumption of extremely low scientific investigation and increase the reliability of electric system.
Description
Technical field
The present invention relates to a kind of thermo-electric generation systems, and in particular to be that a kind of no-rotary part for arctic regions has
There is the thermo-electric generation system of high reliability, heat source utilizes the heat of diesel combustion, and cold source utilizes polar low-temperature environment, thermo-electric generation
System carries out continuing power generation under the action of the temperature difference.
Background technique
South Pole height above sea level, rarefaction of air, surface cover ice and snow, ice and snow reflected solar radiation, these conditions make the South Pole to be
Most cold area in the world, the distinctive polar region environment in the South Pole are to carry out scientific investigation, astronomical observation, environmental experiment ideally
Scientific investigation station is all had in the South Pole in point, many countries.Currently, the most of scientific investigation stations in the South Pole are sent out using diesel generating set
Electricity, diesel-driven generator are generated electricity using rotor rotation cutting magnetic line, and the lasting use of rotatable parts can reduce entire hair
The reliability of electric system.Especially under polar low-temperature environment under low pressure, the Performance And Reliability of diesel engine be will be greatly reduced.
The diesel-driven generator of China polar region scientific investigation station, continuous working period are far below the time of design, therefore in scientific investigation station
It has more diesel-driven generators to generate electricity in turn, to guarantee the sustainable supply of electric energy.When the diesel-driven generator of polar region scientific investigation station occurs
After failure, it is difficult to repair, the general generator directly more renewed.However South Pole goods and materials transport difficulty, transportation cost is very high, diesel oil
Generator is again than cumbersome, and often replacement will increase the cost of South Pole scientific investigation.For this purpose, there is an urgent need to seek a kind of generating efficiency
Electricity generation system high, operational reliability is high.
Thermo-electric generation is a kind of technology that electric energy is directly converted heat energy into using Seebeck effect, has reliability long-lived
Order the advantages that long.It is that its generating efficiency is low that thermo-electric generation, which is not used widely most important problem initially,.With to the temperature difference
The research of power generation is deeply and the progress of material science, novel thermoelectric material are found, novel thermoelectric material
Relatively traditional thermoelectric material, greatly improves the efficiency of thermo-electric generation.Thermo-electric generation efficiency and thermoelectric material
" figure of merit " is related, and " figure of merit " more high generation efficiency is higher.When " figure of merit " reaches 4, theoretical thermo-electric generation efficiency be can achieve
30%, suitable with traditional diesel power generation efficiency, " figure of merit " of the highest thermoelectric material of performance can be more than 4 at present.
For this purpose, devising a kind of high reliability thermo-electric generation system of no-rotary part herein, the low temperature ring in the South Pole is utilized
Border, as low temperature cold source, using the heat of diesel combustion, as high temperature heat source, cycle fluid is that will not occur under low temperature environment
The alcohol of solidification.By boiling-condensation of gravity drive heat exchange working medium, the self circulation of working medium of electricity generation system is realized.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the problem of polar region scientific investigation Power Plant Generating Equipment Reliability difference, and provide
A kind of thermo-electric generation system for working in polar region environment for making full use of extremely low worst cold case environment and improving generating efficiency, simultaneously
The electricity generation system no-rotary part, have high reliability, can long-time stable continue efficiently to export electric energy, effectively
It is unstable to solve the problems, such as that scientific investigation station electric energy in polar region is supplied.
Technical solution
To solve above-mentioned technical problem present on polar region scientific investigation station generation system designs, the technical solution adopted by the present invention
It is:
A kind of polar region thermo-electric generation system, it is characterised in that: including cabin, gas-liquid phase transition heat-transfer device, thermo-electric generation dress
Set and gravity drive boil-condense liquid cooling apparatus, be provided with burner hearth in the cabin, an air inlet be equipped on the downside of the burner hearth
Mouthful, roof of the furnace connects the flue that a upper end is stretched out outside cabin；The gas-liquid phase transition heat-transfer device includes the in the burner hearth
The thermally conductive board group of one gas-liquid phase transition and the thermally conductive board group of the second gas-liquid phase transition in flue, the thermally conductive board group of the first gas-liquid phase transition
It is made of respectively the thermally conductive plate of gas-liquid phase transition that parallel interval is arranged with the second gas-liquid phase transition heat-conducting plate group, the gas-liquid phase transition is led
Flat plate heat is made of flat board evaporation section, plate condensation segment and liquid-sucking core, and the flat board evaporation section is located in the burner hearth, described
Flat board evaporation section is equipped with multiple groups fin, and the plate condensation segment is located at outside the burner hearth；Gravity drive boiling-the condensate liquid
Device for cooling includes the serpentine channel cooling device and tedge positioned at boiling lateral, and the cooling device and tedge are installed on cabin
It is interior；The gravity drive liquid cooling apparatus that boils-condense further includes cold cooling unit, down-comer and the second line of a couplet positioned at condensation side
Case, the cold cooling unit, down-comer and lower collecting box are placed in external environment；The tedge top is through the sub-cooled
Device is connect with the down-comer, and the lower collecting box is connected between down-comer and tedge, is connected in the middle part of the tedge
The serpentine channel cooling device is connect, which includes the first cooling duct group and the second cooling duct group,
First cooling duct group and the second cooling duct group are made of the cooling duct of parallel interval respectively, in each cooling duct
One thermally conductive plate of gas-liquid phase transition of interior setting, is arranged the temperature between the cooling duct and the thermally conductive plate of gas-liquid phase transition
The thermoelectric generation film of poor power generator.
Serpentine channel is machined with inside the serpentine channel coldplate.
Fin is provided on the cold cooling unit.
The liquid-sucking core shape is cross.
The gas-liquid phase transition heat-conducting plate quantity of the thermally conductive board group of second gas-liquid phase transition is 3-10.
The gas-liquid phase transition heat-conducting plate quantity of the thermally conductive board group of first gas-liquid phase transition is 2-3.
The thermally conductive plate of gas-liquid phase transition is made of the red copper of high thermal conductivity coefficient, the liquid working substance that fills of inside be ethyl alcohol,
Methanol or acetone.
The gravity drive boil-condense liquid cooling apparatus liquid working substance be ethyl alcohol, methanol or acetone.
The gravity drive of electricity generation system of the present invention boils-liquid cooling apparatus is condensed, it boils and condenses in the channel using working medium
The pressure imbalance of generation is promoted working medium after gasification to flow to condensation side, and is extremely boiled condensed liquid transporting using gravity
Side is risen, realizes the self-loopa of working medium；Liquid-sucking core is covered with inside the thermally conductive plate of gas-liquid phase transition, constitutes gas-liquid phase transition self-cycle structure；
Gravity drive is boiled-condenses liquid cooling apparatus and the thermally conductive plate of gas-liquid phase transition, respectively with outer low temperature environment and high-temperature flue gas environment
Heat exchange constitutes low-temperature end, temperature end in temperature difference electricity generation device two sides, constitutes the base thermo-electric generation system of no-rotary part.
Liquid cooling apparatus is boiled-condensed to gravity drive for a circulation loop, serpentine channel cooling device and temperature difference electricity generation device
Contact, constitutes the cold end of temperature difference electricity generation device, and liquid cooling apparatus is boiled-condensed to gravity drive using producing in gravity and boiling-condensation
Raw pressure imbalance keeps the self-loopa flowing of working medium in whole device as driving force.It is inside serpentine channel coldplate
Serpentine channel enhances the cooling effect to temperature difference electricity generation device cold end, increases the temperature difference of temperature difference electricity generation device two sides.It is snakelike
Temperature increases after working medium in the coldplate of channel absorbs heat, and density becomes smaller, flowed up by tedge.Tedge top
Temperature of Working is very high, comes to life, and the gas-liquid mixture of generation liquefies in low temperature environment cooling device and is cooled to liquid, liquid
Into continuing to recycle in down-comer, cold cooling unit adds fin, improves heat exchange area, takes full advantage of polar region
Low temperature, enhance cooling effect.Whole device is utilized gravity and is recycled as driving force, is not necessarily to any rotation section
Part improves reliability.
The thermally conductive plate of gas-liquid phase transition is one piece using working medium gas-liquid phase transition and adds the copper plate of fin, in the copper plate
Portion is hollow structure, and inside is equipped with n (9 < n < 20) cross liquid-sucking cores, and the working medium heat absorption evaporation in copper sheet is in wall surface
After condensation, copper sheet lower part is flowed back to by liquid-sucking core, realizes the circulation of working medium.Fin is installed under one end of thermally conductive plate, thus
Heat exchange area, enhancing heat exchange can be improved.Thermally conductive plate is conducted heat using gas-liquid phase transition, can greatly improve the coefficient of heat transfer,
Thermal coefficient is tens times of red copper, is hot " superconductor ".Temperature on plate can be reduced using the thermally conductive plate of gas-liquid phase transition
Unevenness, enable thereon different thermoelectric generation films work in similar operating condition, so as to improve entire temperature difference hair
The generating efficiency of electric system.
Temperature difference electricity generation device is the core apparatus for heat to electricity conversion, by a commercial thermoelectric generation film of k (400 > k > 300)
It constitutes, thermoelectric generation film arrangement is fixed together, and forms an entirety.Thermoelectric generation film is according to electricity system to the need of power supply
It asks, carries out reasonable series-parallel connection, and diode is added in series loop to prevent the refluence of electric current.In thermoelectric generation film
Portion has m (200 > m > 150) to PN junction.Single PN junction is the most basic unit for constituting thermo-electric generation, and single PN junction is by a P
Type richness cavitation material and a N-type electron rich material connect and compose, after both ends form the temperature difference under Seebeck effect, Ke Yichi
It is continuous to produce electricl energy.The shell of thermoelectric generation film is the good ceramic material of thermal insulation, can reduce the thermo-electric generation in this way
Heat transfer between piece hot and cold side improves the temperature difference of hot and cold side, and then improves the efficiency of thermo-electric generation.
Cabin is made of the heat-resisting material of package steel skeleton, and outer wall wraps up thermal insulation material, to reduce diesel oil
The heat of burning scatters and disappears.Air needed for high-temperature burner hearth burning enters from air inlet, and the flue gas after burning is another by being located at
The chimney of side is discharged, and such high-temperature flue gas can sufficiently flow in burner hearth, and then improves heat transfer efficiency.
Beneficial effect
The invention discloses a kind of high reliability polar region thermo-electric generation system, which utilizes the space of cabin from dividing,
The thermally conductive board group of the first gas-liquid phase transition of arrangement, the thermally conductive board group of the second gas-liquid phase transition, the first cooling duct group and second are cooling in cabin
Channel group, and thermoelectric generation film is set between gas-liquid phase transition heat-conducting plate and cooling duct, the thermally conductive board group of the first gas-liquid phase transition and
The thermally conductive board group of two gas-liquid phase transitions fully absorbs the heat of furnace chamber inner combustion generation, the first cooling duct group and the second cooling duct group
It is timely cooled to the cold end of power generation sheet, using thermoelectric generation film, makes full use of the low temperature environment and diesel oil of polar region
The temperature difference between high-temperature flue gas that burning generates, carries out thermo-electric generation, and the huge temperature difference can improve the utilization of the energy significantly
Efficiency.The thermally conductive plate of gas-liquid phase transition can promote temperature difference electricity generation device surface to generate homogeneous temperature field as temperature equalization system, so that
Thermoelectric generation film works in similar operating condition, and liquid cooling apparatus is boiled-condensed to gravity drive by multiple heat exchange, by polar region
Outer low temperature environment guides the efficiency that entire thermo-electric generation system can be improved to the temperature end of temperature difference electricity generation device.Temperature difference hair
Electric piece itself is free of rotatable parts, and liquid cooling apparatus utilizes gravity, realizes self-loopa, is also free of rotatable parts, therefore entire dress
It sets without any rotatable parts, to improve the reliability of entire thermo-electric generation system.The thermo-electric generation system, can by improvement
The shortcomings that with high efficiency and exporting electric energy with high reliability, overcome diesel power generation, can reduce the electricity consumption of extremely low scientific investigation
Cost and increase electric system reliability.
Detailed description of the invention
A kind of high reliability polar region thermo-electric generation system figure of Fig. 1；
The thermally conductive lithograph of Fig. 2 gas-liquid phase transition；
Fig. 3 low temperature environment cooling device structure chart；
Fig. 4 serpentine channel plate structure of cooling figure；
Fig. 5 temperature difference electricity generation device structure chart；
1. cabin in figure；2. burner；3. flue；4. air inlet；5. the thermally conductive plate of gas-liquid phase transition；6. burner hearth；7. snakelike
Channel coldplate；8. tedge；9. low temperature environment cooling device；10. fin；11. down-comer；12. lower collecting box；13. the temperature difference is sent out
Electric piece；14. cross liquid-sucking core；15. red copper shell；16. connecting tube；17. pedestal；18. snakelike conduit；19. cover board.
Specific embodiment
It is further described in detail with reference to the accompanying drawing:
Fig. 1 gives system diagram of the invention, a kind of polar region thermo-electric generation system, burner hearth, gas-liquid including burning diesel oil
Heat conduction with phase change plate and gravity drive boiling condensation self-loopa liquid cooling apparatus.Specific structure includes: cabin 1；Burner 2；Flue
3；Air inlet 4；The thermally conductive plate 5 of gas-liquid phase transition；Burner hearth 6；Serpentine channel coldplate 7；Tedge 8；Low temperature environment cooling device 9；
Fin 10；Down-comer 11；Lower collecting box 12；Thermoelectric generation film 13；Cross liquid-sucking core 14；Red copper shell 15；Connecting tube 16；Pedestal
17 equal chief components.Burner 2 is arranged in burner hearth 6, and air inlet 4 is arranged in the side of burner hearth 6, and air is from air inlet 4
Into diesel combustion generates high-temperature flue gas, is finally discharged from flue 3.It is thermally conductive flat that high-temperature flue gas washes away gas-liquid phase transition in burner hearth 6
Plate 5, transfers heat to thermally conductive plate, and the thermally conductive plate 5 of gas-liquid phase transition utilizes its superior heating conduction, heats the temperature difference to samming
Power generation sheet 13, serpentine channel liquid cooling plate 7 take away the heat of thermoelectric generation film 13, so that the two of power generation sheet 13 by liquid cooling
End forms the huge temperature difference, and realization expeditiously generates electricity.Worker quality liquid in serpentine channel liquid cooling apparatus 7, is boiled by gravity drive
It rises condensation self-loopa liquid cooling apparatus and realizes and rise in tedge 8 after self-loopa, working medium are heated, it is cooling in low temperature environment after boiling
Liquefy in device 9, fin 10 is arranged on low temperature environment cooling device 9, for increase low temperature environment cooling device 9 with it is extremely low low
The contact area of warm environment, to improve heat exchange property.After working medium liquefaction, deposited in lower collecting box 12 by down-comer 11.
Fig. 2 gives the thermally conductive slab construction figure of gas-liquid phase transition, its surface portion is splitted, so as to see internal junction
Structure.The thermally conductive plate is made of the red copper of high thermal conductivity coefficient, is hollow structure inside plate, adds inside a red copper shell 15
Enter cross liquid-sucking core 14, it not only can be with the stability of reinforced structure, moreover it is possible to the liquefied working medium reflux of guidance is played, thus real
The circulation of existing working medium.The thermally conductive plate lower part of gas-liquid phase transition is equipped with fin, for increasing heat exchange area, improves exchange capability of heat.
Fig. 3 is low temperature environment cooling device structure chart, and whole device is placed in outdoor, is sufficiently used the low temperature ring of polar region
Border.The device has installed fin 10 additional, for increasing contact area, improves cooling effect.Gas in connecting tube 16 enters low temperature
After environment cooling device 9, since extremely low environment temperature is low, it is thus possible to be rapidly cooled liquefaction, the liquid of condensation enters decline
It is imported in lower collecting box 12 in pipe 11, continues to recycle.
Fig. 4 is serpentine channel plate structure of cooling figure, which be process by one piece of metal plate, digs out snake on its surface
Shape conduit 18 processes inlet and outlet at the both ends of snakelike conduit 18, so that cooling water is by inlet and outlet in serpentine channel inside stream
Dynamic, metal cover board 19 covers the conduit after processing, realizes sealing by welding.
Fig. 5 is temperature difference electricity generation device structure chart, and thermoelectric generation film 13 is tightly attached on pedestal 17, root between thermoelectric generation film 13
According to needing to carry out series-parallel connection wiring, the positive and negative anodes of power supply are finally drawn in pedestal merging.
Claims (8)
1. a kind of polar region thermo-electric generation system, it is characterised in that: including cabin, gas-liquid phase transition heat-transfer device, temperature difference electricity generation device
And gravity drive boil-condense liquid cooling apparatus, be provided with burner hearth in the cabin, an air inlet be equipped on the downside of the burner hearth,
Roof of the furnace connects the flue that a upper end is stretched out outside cabin；The gas-liquid phase transition heat-transfer device includes the first gas-liquid phase transition heat-conducting plate
Group and the thermally conductive board group of the second gas-liquid phase transition, the thermally conductive board group of first gas-liquid phase transition and the second gas-liquid phase transition heat-conducting plate group respectively by
The thermally conductive plate composition of the gas-liquid phase transition of parallel interval arrangement, the thermally conductive plate of gas-liquid phase transition are condensed by flat board evaporation section, plate
Section and liquid-sucking core composition, the flat board evaporation section of the thermally conductive board group of the first gas-liquid phase transition are located in the burner hearth, second gas
The flat board evaporation section that liquid phase becomes thermally conductive board group is located in the flue, in the thermally conductive board group of first gas-liquid phase transition and the second gas-liquid
The flat board evaporation section of heat conduction with phase change board group is mounted on multiple groups fin, the thermally conductive board group of first gas-liquid phase transition and the second liquid phase
The plate condensation segment for becoming thermally conductive board group is respectively positioned on outside the burner hearth；Liquid cooling apparatus is boiled-condensed to the gravity drive including being located at
The serpentine channel cooling device and tedge of boiling lateral, the serpentine channel cooling device and tedge are installed in cabin；Institute
Stating the gravity drive liquid cooling apparatus that boils-condense further includes cold cooling unit, down-comer and lower collecting box positioned at condensation side, described
Cold cooling unit, down-comer and lower collecting box are placed in external environment；The tedge top through the cold cooling unit with
The down-comer connection, the lower collecting box are connected between down-comer and tedge, described in the connection of the middle part of the tedge
Serpentine channel cooling device, the serpentine channel cooling device include the first cooling duct group and the second cooling duct group, and described the
One cooling duct group and the second cooling duct group are made of the cooling duct of parallel interval respectively, are arranged in each cooling duct
One thermally conductive plate of gas-liquid phase transition, is arranged the thermo-electric generation between the cooling duct and the thermally conductive plate of gas-liquid phase transition
The thermoelectric generation film of device.
2. a kind of polar region thermo-electric generation system according to claim 1, it is characterised in that: in the cooling dress of the serpentine channel
It sets inside and is machined with serpentine channel.
3. a kind of polar region thermo-electric generation system according to claim 1, it is characterised in that: on the cold cooling unit
It is provided with fin.
4. a kind of polar region thermo-electric generation system according to claim 1, it is characterised in that: the liquid-sucking core shape is cross
Type.
5. a kind of polar region thermo-electric generation system according to claim 1, it is characterised in that: second gas-liquid phase transition is thermally conductive
The thermally conductive plate quantity of the gas-liquid phase transition of board group is 3-10.
6. a kind of polar region thermo-electric generation system according to claim 1, it is characterised in that: first gas-liquid phase transition is thermally conductive
The thermally conductive plate quantity of the gas-liquid phase transition of board group is 2-3.
7. a kind of polar region thermo-electric generation system according to claim 1, it is characterised in that: the thermally conductive plate of gas-liquid phase transition
It is made of the red copper of high thermal conductivity coefficient, the liquid working substance that inside is filled is ethyl alcohol, methanol or acetone.
8. a kind of polar region thermo-electric generation system according to claim 1, it is characterised in that: the gravity drive boiling-is cold
The liquid working substance of lime set device for cooling is ethyl alcohol, methanol or acetone.
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| CN201710568164.8A CN107171598B (en) | 2017-07-12 | 2017-07-12 | A kind of polar region thermo-electric generation system |
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| CN201710568164.8A CN107171598B (en) | 2017-07-12 | 2017-07-12 | A kind of polar region thermo-electric generation system |
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| CN107171598B true CN107171598B (en) | 2019-05-31 |
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| CN109724278B (en) * | 2018-12-27 | 2020-05-29 | 中国矿业大学 | Coal field fire district heat energy comprehensive utilization system |
| CN111769381B (en) * | 2020-07-14 | 2021-11-09 | 广西电网有限责任公司钦州供电局 | Multilayer rod type grounding system of lightning arrester |
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| US8001794B2 (en) * | 2006-02-27 | 2011-08-23 | Action Circuit Productions, Inc. | Thermoelectric fluid heat exchange system |
| CN101131255A (en) * | 2006-08-24 | 2008-02-27 | 吴江市普天热管技术推广应用研究所 | Heat pipe hot-blast stove using biomass energy resource |
| CN101976987B (en) * | 2010-10-20 | 2012-07-04 | 王海波 | Industrial afterheat semiconductor power generation method and device using heat carrier as heating medium |
| CN103618479B (en) * | 2013-12-19 | 2015-08-19 | 东南大学 | Based on generating and the energy-storage system of South Pole astronomic station diesel generating set waste heat |
| CN104912634B (en) * | 2015-05-06 | 2016-08-24 | 东南大学 | South Pole generating cabin flue gas ash removal and bootstrap system |
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