CN107888108A - Thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method - Google Patents
Thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method Download PDFInfo
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- CN107888108A CN107888108A CN201711391417.5A CN201711391417A CN107888108A CN 107888108 A CN107888108 A CN 107888108A CN 201711391417 A CN201711391417 A CN 201711391417A CN 107888108 A CN107888108 A CN 107888108A
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- heat
- siphon type
- temperature difference
- heat pipe
- thermal source
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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
A kind of thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method, belong to field of heat transfer.It is characterized in that：Including thermal source, thermo-electric generation element, heat siphon type heat pipe and the fluid box being connected with heat siphon type heat pipe.The cold end of temperature difference generating element is close in heat siphon type heat pipe or embedded heat siphon type heat pipe in the present invention, with the directly or indirectly contact heat-exchanging of the liquid working substance in pipe, liquid working substance forms self-loopa to maintain the relative stable and relatively low temperature of thermo-electric generation element cold end by communicating pipe with the liquid working substance inside fluid box, is generated electricity so as to establish the temperature difference of certain time.The invention provides a kind of low-temperature receiver design method of thermo-electric generation, can reduce thermal resistance efficiently and rapidly to exchange heat, the size and shape of fluid box can be depending on required generated outputs and use occasion.It in addition, low-temperature receiver liquid working substance forms closed self-circulation, can avoid frequently changing hydraulic fluid, and the electric energy needed for circulation need not be formed by additional pump.
Description
Technical field
The present invention relates to a kind of thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method, belongs to heat transfer neck
Domain.
Background technology
Thermoelectric generation it is critical that how cold end keeps stable and relatively low temperature, so as in thermo-electric generation
Element both ends maintain the metastable temperature difference in certain time to be generated electricity.The radiating mode of cold end has free convection, air-cooled strong
Compel the mode such as convection current and water cooling, and free convection is typically that can not ensure radiating effect in the small space more closed
, therefore the prolonged larger temperature difference can not be maintained；Air-cooled forced convection although radiating effect is better than Natural Heat Convection mode,
But the arrangement in small space internal fan is more difficult, and the life-span of fan itself and power consumption are all potential hidden danger
Problem；And the mode of water-cooling, if cold end forms liquid circulation with pump connection fluid box, this radiating effect is although very
It is good, but pump is consumption electric energy, and some thermo-electric generation occasion conditions do not allow for the circulation of this open type to exist；It is if cold
End is only placed in the lower section of thermo-electric generation element as low-temperature receiver without liquid circulation by the use of a fluid box, only with thermo-electric generation
The fluid box upper liquid of element contact is heated rapidly heating, and heat transfer effect is bad, causes radiating effect bad, generates electricity and loses
Lose, and fluid box only has enough great talents to have the meaning as low-temperature receiver, and otherwise thermo-electric generation element hot and cold side is soon without temperature
Difference is present, but fluid box size is too big, and its applicability is not also strong.Therefore, the present invention proposes a kind of unidirectional biography of thermal source up
Hot method for generating electricity by utilizing temperature difference.
The content of the invention
It is an object of the invention to provide a kind of thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method.
The unidirectional heat transfer temperature difference electricity generation system of the thermal source up, it is characterised in that：Including thermal source, thermo-electric generation element,
Heat siphon type heat pipe, fluid box and liquid working substance；Above-mentioned thermo-electric generation element is arranged in the lower section of thermal source, heat siphon type heat
Pipe is arranged and is close in the lower section of thermo-electric generation element；The side of heat siphon type heat pipe is disposed with upper outlet and entered with from top to bottom
Mouthful, fluid box side is disposed with upper inlet and lower outlet from top to bottom；The upper outlet of heat siphon type heat pipe and fluid box it is enterprising
Mouth is connected by tedge, and the lower outlet of fluid box is connected with the lower inlet of heat siphon type heat pipe by down-comer；Fluid box and
Liquid working substance is respectively arranged with heat siphon type heat pipe；Aforesaid liquid case is higher than heat siphon type heat pipe on locus；Heat siphon type
The upper outlet of heat pipe is highly less than the enterprising open height of fluid box；The lower inlet of heat siphon type heat pipe, which is highly less than under fluid box, to be exported
Highly.
The electricity-generating method of the unidirectional heat transfer temperature difference electricity generation system of a kind of thermal source up, it is characterised in that including following
Process：One end of above-mentioned thermo-electric generation element is close to thermal source and absorbs heat formation hot junction, and the other end is as thermo-electric generation element
Cold end, exchanged heat with the liquid working substance of heat siphon type inside heat pipe by way of directly or indirectly contacting, liquid working substance absorbs temperature
The heat of poor generating element cold end is to keep the relatively low temperature of cold end, so as to ensure the temperature difference of thermo-electric generation element hot and cold side
Generated electricity；The heat siphon type heat pipe of thermo-electric generation element cold end is connected with fluid box, the cold conditions of heat siphon type inside heat pipe
Liquid working substance absorbs heating after the heat of thermo-electric generation element cold end and become heat after hot liquid working substance by thermosyphon effect
Amount is delivered to the top of fluid box through tedge, and the cold conditions liquid working substance of liquid lower box part enters heat siphon type heat by down-comer
Continue in pipe absorb thermo-electric generation element cold end heat after further through tedge enter fluid box top so that with the temperature difference send out
Temperature of the liquid working substance all the time with the liquid working substance of liquid-tank bottom approaches in the heat siphon type heat pipe of electric device cold end contact, such as
This forms the self-loopa of liquid working substance.
The present invention proposes a kind of thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method, the involved temperature difference
The low-temperature receiver design method of generating, it is ensured that liquid working substance and fluid box in the heat siphon type heat pipe contacted with thermo-electric generation element cold end
The liquid working substance temperature of bottom approaches, and the heat of liquid working substance absorption thermo-electric generation element cold end passes through in heat siphon type heat pipe
Thermosyphon effect is transferred to liquid upper box part, can efficiently and rapidly exchange heat so that the cold end of thermo-electric generation element is in certain time
Inside keep relative stability and relatively low temperature, the size of fluid box can depending on the required temperature difference and generated output,
In the case that required generated output requires larger, it can suitably increase the size of fluid box to contain more liquid working substances to absorb
The heat of thermo-electric generation element cold end, so as to maintain the larger temperature difference of thermo-electric generation element hot and cold side to meet to use for a long time
Family demand, in addition in the limited occasion in some spaces, water tank can make abnormity to meet heat exchange demand；Thermo-electric generation element cold end
With the mode of liquid working substance direct contact heat transfer in heat siphon type heat pipe, reduce the thermal resistance of cold end, more body to the full extent
The efficient quick of heat exchange is showed；In addition, this low-temperature receiver design method causes its internal liquid working medium to form closed self-circulation, can avoid
Hydraulic fluid is frequently changed, and the electric energy needed for circulation need not be formed by additional pump, with regard to the relative of certain time can be maintained
Stable and relatively low cold junction temperature, so as to carry out thermo-electric generation to meet the power demand of user.
The unidirectional heat transfer temperature difference electricity generation system of above-mentioned thermal source up, it is characterised in that：Heat siphon type heat pipe and the temperature difference
Generating element contact part hollow out so that thermo-electric generation element insertion heat siphon type heat pipe cut-out and with hot rainbow
Liquid working substance direct contact heat transfer in suction heat pipe, farthest reduce the influence of thermal contact resistance exchange thermal effect.
The unidirectional heat transfer temperature difference electricity generation system of above-mentioned thermal source up, it is characterised in that：Above-mentioned heat siphon type heat pipe hangs down
Nogata is to size d >=10mm so that has in heat siphon type heat pipe between the top fluid of upper outlet and lower floor's fluid of lower inlet
More obvious temperature difference, so as to provide driving force to the formation of thermal siphon phenomenon.
The unidirectional heat transfer temperature difference electricity generation system of above-mentioned thermal source up, it is characterised in that：Above-mentioned heat siphon type heat pipe with
Aforesaid liquid case is integral type structure, and inside is set up every road；Described tedge, down-comer are internal every road.
The unidirectional heat transfer temperature difference electricity generation system of above-mentioned thermal source up, it is characterised in that：The size of aforesaid liquid case is big
Small and shape can generated output and the adjustment of used occasion according to needed for user.
The unidirectional heat transfer temperature difference electricity generation system of above-mentioned thermal source up, it is characterised in that：Above-mentioned tedge and down-comer
It is 1 or more.
The unidirectional heat transfer temperature difference electricity generation system of above-mentioned thermal source up, it is characterised in that：Aforesaid liquid working medium is water, or
Conduction oil, or the organic working medium such as ethanol, depending on heat source temperature.
The unidirectional heat transfer temperature difference electricity generation system of above-mentioned thermal source up, it is characterised in that：Above-mentioned thermo-electric generation element is
Semiconductor temperature differential generating piece or semiconductor chilling plate finished product, or semiconductor power generation stack, or semiconductor refrigerating pile, or PN junction and print
The collection finished product of brush circuit.
Brief description of the drawings
Fig. 1 is a kind of unidirectional heat transfer temperature difference electricity generation system schematic diagram of thermal source up（Heat siphon type heat pipe hollows out）；
Fig. 2 is a kind of unidirectional heat transfer temperature difference electricity generation system schematic diagram of thermal source up（Heat siphon type heat pipe does not hollow out）；
Fig. 3 is a kind of unidirectional heat transfer temperature difference electricity generation system schematic diagram of thermal source up（Fluid box reconfigurable is whole）；
Fig. 4 is a kind of unidirectional heat transfer temperature difference electricity generation system schematic diagram of thermal source up（Low-temperature receiver integrated design）；
Label title in figure：1 thermal source, 2 thermo-electric generation elements, 3 heat siphon type heat pipes, 4 communicating pipes, 4-1 tedges, 4-2 decline
Pipe, 5 fluid boxes, 6 liquid working substances, 7 every road.
Embodiment
A kind of unidirectional heat transfer temperature difference operation of electric power system process of thermal source up is made with reference to Fig. 1 and Fig. 2 detailed
Explanation.
A kind of unidirectional heat transfer temperature difference electricity generation system of thermal source up is operated in the following manner：Above-mentioned thermo-electric generation
It is close to thermal source and absorbs heat formation hot junction, cold end of the other end as thermo-electric generation element, with heat siphon type heat in one end of element
Liquid working substance inside pipe is exchanged heat by way of directly or indirectly contacting, and liquid working substance absorbs the heat of thermo-electric generation element cold end
Amount is to keep the relatively low temperature of cold end, so as to ensure that the temperature difference of thermo-electric generation element hot and cold side is generated electricity；Thermo-electric generation
The heat siphon type heat pipe of element cold end is connected with fluid box, and the cold conditions liquid working substance of heat siphon type inside heat pipe absorbs temperature difference hair
Heating becomes that heat is delivered into liquid through tedge by thermosyphon effect after hot liquid working substance after the heat of electric device cold end
The top of body case, the cold conditions liquid working substance of liquid lower box part is entered in heat siphon type heat pipe by down-comer to be continued to absorb temperature difference hair
Enter the top of fluid box after the heat of electric device cold end further through tedge so that the heat contacted with thermo-electric generation element cold end
Temperature of the liquid working substance all the time with the liquid working substance of liquid-tank bottom approaches in hydrocone type heat pipe, is thusly-formed liquid working substance oneself
Circulation.
Claims (9)
- A kind of 1. unidirectional heat transfer temperature difference electricity generation system of thermal source up, it is characterised in that：Including thermal source（1）, thermo-electric generation element（2）, heat siphon type heat pipe（3）, fluid box（5）And liquid working substance（6）；Above-mentioned thermo-electric generation element（2）It is arranged in thermal source（1）Lower section, heat siphon type heat pipe（3）Arrange and be close in temperature difference hair Electric device（2）Lower section；Heat siphon type heat pipe（3）Side be disposed with upper outlet and lower inlet, fluid box from top to bottom（5）Side cloth from top to bottom It is equipped with upper inlet and lower outlet；Heat siphon type heat pipe（3）Upper outlet and fluid box（5）Upper inlet pass through tedge（4-1） It is connected, fluid box（5）Lower outlet and heat siphon type heat pipe（3）Lower inlet pass through down-comer（4-2）It is connected；Fluid box（5）With heat siphon type heat pipe（3）Inside it is respectively arranged with liquid working substance（6）；Aforesaid liquid case（5）It is higher than heat siphon type heat pipe on locus（3）；Heat siphon type heat pipe（3）Upper outlet height Less than fluid box（5）Enterprising open height；Heat siphon type heat pipe（3）Lower inlet be highly less than fluid box（5）Lower outlet height.
- 2. the unidirectional heat transfer temperature difference electricity generation system of thermal source according to claim 1 up, it is characterised in that：Heat siphon type Heat pipe（3）With thermo-electric generation element（2）The part of contact hollows out so that thermo-electric generation element（2）Embedded heat siphon type heat Pipe（3）Cut-out and with heat siphon type heat pipe（3）Interior liquid working substance（6）Directly contact.
- 3. the unidirectional heat transfer temperature difference electricity generation system of thermal source according to claim 1 or 2 up, it is characterised in that：It is above-mentioned Heat siphon type heat pipe（3）Vertical direction size d >=10mm.
- 4. the unidirectional heat transfer temperature difference electricity generation system of thermal source according to claim 1 or 2 up, it is characterised in that：It is above-mentioned Heat siphon type heat pipe（3）With aforesaid liquid case（5）For integral type structure, inside is set up every road（7）；Described tedge（4-1）、 Down-comer（4-2）It is as internal every road.
- 5. the unidirectional heat transfer temperature difference electricity generation system of thermal source according to claim 1 or 2 up, it is characterised in that：It is above-mentioned Fluid box（5）Size and reconfigurable it is whole.
- 6. the unidirectional heat transfer temperature difference electricity generation system of thermal source according to claim 1 or 2 up, it is characterised in that：It is above-mentioned Tedge（4-1）And down-comer（4-2）It is 1 or more.
- 7. the unidirectional heat transfer temperature difference electricity generation system of thermal source according to claim 1 or 2 up, it is characterised in that：It is above-mentioned Liquid working substance（6）It is water, or conduction oil, or the organic working medium such as ethanol.
- 8. the unidirectional heat transfer temperature difference electricity generation system of thermal source according to claim 1 or 2 up, it is characterised in that：It is above-mentioned Thermo-electric generation element（2）It is semiconductor temperature differential generating piece or semiconductor chilling plate finished product, or semiconductor power generation stack, or semiconductor system Cold pile, or the collection finished product of PN junction and printed circuit.
- 9. the electricity-generating method of the unidirectional heat transfer temperature difference electricity generation system of thermal source according to claim 1 or 2 up, its feature It is to include procedure below：Above-mentioned thermo-electric generation element（2）One end be close to thermal source（1）Absorb heat and form hot junction, the other end is as thermo-electric generation member Part（2）Cold end, with heat siphon type heat pipe（3）Internal liquid working substance（6）Exchanged heat by way of directly or indirectly contacting, liquid Body working medium（6）Absorb thermo-electric generation element（2）The heat of cold end is to keep the relatively low temperature of cold end, so as to ensure that the temperature difference is sent out Electric device（2）The temperature difference of hot and cold side is generated electricity；Thermo-electric generation element（2）The heat siphon type heat pipe of cold end（3）With fluid box（5） It is connected, heat siphon type heat pipe（3）Internal cold conditions liquid working substance（6）Absorb thermo-electric generation element（2）Risen after the heat of cold end Temperature becomes hot liquid working substance（6）Afterwards by thermosyphon effect by heat through tedge（4-1）It is delivered to fluid box（5）It is upper Portion, fluid box（5）The cold conditions liquid working substance of bottom（6）Pass through down-comer（4-2）Into heat siphon type heat pipe（3）Inside continue to absorb Thermo-electric generation element（2）Further through tedge after the heat of cold end（4-1）Into fluid box（5）Top so that with the temperature difference send out Electric device（2）The heat siphon type heat pipe of cold end contact（3）Interior liquid working substance（6）All the time with fluid box（5）The liquid working substance of bottom （6）Temperature approach, be thusly-formed liquid working substance（6）Self-loopa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391417.5A CN107888108A (en) | 2017-12-21 | 2017-12-21 | Thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711391417.5A CN107888108A (en) | 2017-12-21 | 2017-12-21 | Thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method |
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| CN201711391417.5A Pending CN107888108A (en) | 2017-12-21 | 2017-12-21 | Thermal source unidirectional heat transfer temperature difference electricity generation system up and electricity-generating method |
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Citations (4)
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| DE102006040853B3 (en) * | 2006-08-31 | 2008-02-14 | Siemens Ag | Thermoelectric device for a vehicle comprises a thermoelectric generator, a heat source and a heat sink thermally connected together and units for limiting the temperature in the generator |
| CN201332372Y (en) * | 2008-12-26 | 2009-10-21 | 汤文渊 | Residual heat thermoelectric power generation system using circulating liquid cooling |
| CN103259458A (en) * | 2012-02-16 | 2013-08-21 | 王广武 | Solar thermoelectric power generation system |
| CN207753636U (en) * | 2017-12-21 | 2018-08-21 | 南京航空航天大学 | The unidirectional heat transfer temperature difference electricity generation system of heat source above |
-
2017
- 2017-12-21 CN CN201711391417.5A patent/CN107888108A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006040853B3 (en) * | 2006-08-31 | 2008-02-14 | Siemens Ag | Thermoelectric device for a vehicle comprises a thermoelectric generator, a heat source and a heat sink thermally connected together and units for limiting the temperature in the generator |
| CN201332372Y (en) * | 2008-12-26 | 2009-10-21 | 汤文渊 | Residual heat thermoelectric power generation system using circulating liquid cooling |
| CN103259458A (en) * | 2012-02-16 | 2013-08-21 | 王广武 | Solar thermoelectric power generation system |
| CN207753636U (en) * | 2017-12-21 | 2018-08-21 | 南京航空航天大学 | The unidirectional heat transfer temperature difference electricity generation system of heat source above |
Non-Patent Citations (1)
| Title |
|---|
| M.J. DEASY等: ""Simulation-driven design of a passive liquid cooling system for a thermoelectric generator"", 《APPLIED ENERGY》, pages 499 * |
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