CN102664562A - Temperature difference power generation device of flexible base - Google Patents
Temperature difference power generation device of flexible base Download PDFInfo
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- CN102664562A CN102664562A CN2012101138645A CN201210113864A CN102664562A CN 102664562 A CN102664562 A CN 102664562A CN 2012101138645 A CN2012101138645 A CN 2012101138645A CN 201210113864 A CN201210113864 A CN 201210113864A CN 102664562 A CN102664562 A CN 102664562A
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Abstract
The invention discloses a temperature difference power generation device of a flexible base. The temperature difference power generation device is provided with at least one temperature difference power generation module which comprises a flexible heat conduction base, a heat conduction spring piece, a rigid heat conduction base plate, a temperature difference power generation piece and a radiator outwards from a butt-joint object sequentially, and each temperature difference power generation module is provided with a heat insulation board in a wrapping manner on the outer side below the radiator. A plurality of temperature difference power generation modules wrap the periphery of the butt-joint object and are connected with the butt-joint object to form a temperature difference power generation device. According to the application embodiment of the technical scheme of the invention, the flexible heat conduction base is adopted to be matched with the heat conduction spring piece to realize compatibility with different types of automobile exhaust pipes, the tightness of thermal contact is ensured, the flexibility of the temperature difference power generation device for the automobile exhaust pipes is improved, the modification on the automobile exhaust pipes and the damage to the working state are effectively reduced, and conveniences for installation and expansion are realized. In addition, a common block heat conduction material is replaced by the heat conduction spring piece, thereby remarkably reducing the weight of the whole set of power generation device and increasing the whole energy saving and emission reducing effects of an automotive vehicle.
Description
Technical field
The present invention relates to a kind of waste heat recovery reutilization technology, relate in particular to a kind of temperature difference electricity generation device of automobile tail gas pipe heat extraction, belong to hot power generation applications field.
Background technology
Auto industry is one of various countries' mainstay of the national economy industry.Along with the develop rapidly of auto industry, the power saving that vehicle grows with each passing day is also more and more paid close attention to.Yet the energy in the internal combustion engine institute fuel consumption more than 60% is not utilized effectively, and the overwhelming majority is discharged in the atmosphere with the form of residual heat of tail gas of automobile, has caused enormous economic loss and energy waste.According to surveying and determination, the temperature of discharging tail gas can reach more than 600 ℃ in the running car, if this part heat is rationally recycled the oil consumption that can save automobile greatly, reaches energy-saving and emission-reduction simultaneously, has good society and economic benefit.
Use the semiconductor temperature differential generating technology can reclaim the tail gas heat quantity of automobile in advancing effectively.Thermo-electric generation equipment has characteristics such as volume is little, compact conformation, movement-less part, has unique effect aspect utilizing at low grade heat energy.Be installed in it on the blast pipe of internal combustion engine, can directly convert the internal combustion engine operation waste heat into electric energy, electric equipment uses in the steam supply car.Compare with traditional vehicle ac generate, the electric power that thermo-electric generation equipment produces can not increase the load of engine fully, has reached oil-saving effect.
The patent of present existing vehicle exhaust pipe differential temperature electricity generating system is represented with following several Xiang Wei: the disclosed patent of CN201507346U has proposed a kind of independently vehicle exhaust temperature difference electricity generation device; Need block original automobile tail gas pipe during use to insert temperature difference electricity generation device; Change to vehicle structure is big on the one hand, operation easier is big; The TRT that inserts on the other hand possibly influence emission of automobile wastes, and normal operation causes a hidden trouble to automobile.Use the thermoelectric sheet of arc to be directly fixed on the offgas duct outer surface in the disclosed patent of CN200997576Y, avoided change vehicle structure.But this sets up the heat radiation to the production of thermoelectric sheet and low-temperature end to propose higher requirement, has increased the difficulty of its use.CN201523345U and CN201277082Y disclose the vehicle exhaust pipe differential temperature electricity generating system of the heat conduction platform that use and offgas duct profile agree with respectively, have avoided the thermoelectric sheet of use arc, have reduced to produce and use difficulty.But this scheme can roll up the weight of whole device; Increase engine load; Offset the energy-saving effect of emission power generation; Because the offgas duct external diameter of each model automobile is all inequality, need be unfavorable for the reduction of design cost and manufacturing cost simultaneously to the offgas duct design processing separately separately of various models.
Summary of the invention
Defective in view of above-mentioned prior art existence; The objective of the invention is to propose a kind of temperature difference electricity generation device of flexible base, each shape face that is directed against the attaching object generally is suitable for to solve, weight is light, be easy to standardization manufacturing and convenient thermo-electric generation utilization of installing.
Above-mentioned purpose of the present invention; To be achieved through following technical scheme: a kind of temperature difference electricity generation device of flexible base; Has at least one thermo-electric generation module; It is characterized in that: said thermo-electric generation module outwards comprises flexible heat conducting base, heat conduction spring leaf, rigidity heat-conducting substrate, thermo-electric generation sheet and radiator successively from the attaching object, and the outside of each said thermo-electric generation module below radiator coats and be provided with thermal insulation board.
Technique scheme further is preferably; Said thermo-electric generation module contains plural thermo-electric generation sheet; Said thermo-electric generation sheet joins with radiator bottom surface and rigidity heat-conducting substrate upper surface respectively, is filled with insulation material layer between each said thermo-electric generation sheet.
Further, in the said thermo-electric generation module, the heat conduction spring leaf density at corresponding thermo-electric generation sheet place is greater than the heat conduction spring leaf density of thermo-electric generation sheet at a distance from the vacancy.
Technique scheme also can further be preferably, and corresponding attaching object is the situation of cambered surface, and the distribution density of heat conduction spring leaf is gradually close from the mediad periphery in the said temperature difference electricity generation device; Corresponding attaching object is the situation on plane, and the distribution density of heat conduction spring leaf is even in the said temperature difference electricity generation device.
Further, said thermo-electric generation module is provided with buffering spring sheet, and said buffering spring sheet links to each other with the edge of flexible heat conducting base and the root edge of thermal insulation board respectively.
Further, said temperature difference electricity generation device has plural thermo-electric generation module, and all the thermo-electric generation module is fixed on the attaching subject surface through clip.
Further, be provided with the V-type hinge between two adjacent said thermo-electric generation modules, the both wings of said V-type hinge attaching respectively are fixed on the thermal insulation board of thermo-electric generation module sides adjacent.
Further, main part and the main part two ends that said clip has a flexible barcode are the connecting portion of turnover outwards, the clip more than two through screw mutually from connect and with the thermal insulation board Joint of temperature difference electricity generation device.
The application implementation of technical scheme of the present invention; Its outstanding effect is: use flexible heat conducting base to cooperate the compatibility of realization of heat conduction spring leaf and different model automobile tail gas pipe; And guaranteed the tight type of thermo-contact; Greatly increase the flexibility of vehicle exhaust pipe differential temperature electricity generating system and effectively reduced to the change of automobile tail gas pipe and the infringement of operating state the convenience that has installation and expand.In addition, substitute the weight that block Heat Conduction Material commonly used can significantly reduce a whole set of TRT, increase the whole energy emission reduction effect of motor vehicle by the heat conduction spring leaf.
Following constipation closes the embodiment accompanying drawing, and specific embodiments of the invention is done further to detail, so that technical scheme of the present invention is easier to understand, grasp.
Description of drawings
Fig. 1 is the structural representation before the thermo-electric generation module embodiment attaching in the TRT of the present invention.
Fig. 2 is the structural representation after the thermo-electric generation module embodiment attaching in the TRT of the present invention.
Fig. 3 is a kind of attaching mode cross-sectional schematic of TRT of the present invention to motor vehicle exhaust.
Fig. 4 is the another kind of attaching mode cross-sectional schematic of TRT of the present invention to motor vehicle exhaust.
Fig. 5 is the structural representation of clip of the present invention.
Fig. 6 is the structural representation of V-type hinge of the present invention.
Embodiment
The present invention is generally suitable to each shape face of attaching object for solving, weight is light, be easy to the standardization manufacturing and the convenient thermo-electric generation of installing utilizes problem; Innovation has proposed a kind of temperature difference electricity generation device of flexible base; This temperature difference electricity generation device can be easily installed in each position of automobile tail gas pipe; Also can be applicable to flue gas pipeline, coolant pipeline, industrial waste gas pipeline etc. and carry out exhaust heat recovery power generation, have unique effect aspect utilizing at low grade heat energy.
The temperature difference electricity generation device of above-mentioned flexible base has at least one set in shell thermo-electric generation module.As shown in Figure 1, be the structural representation of (nature) before the thermo-electric generation module embodiment attaching in the TRT of the present invention.Visible from this diagram; This thermo-electric generation module 3 outwards comprises flexible heat conducting base 31, heat conduction spring leaf 32, rigidity heat-conducting substrate 33, thermo-electric generation sheet 34 and radiator 35 successively from attaching object (illustrated embodiment is a motor vehicle tail blast pipe 1); The outside of each thermo-electric generation module below radiator coats and is provided with thermal insulation board 36, and thermal insulation board 36 fixes through screw and rigidity heat-conducting substrate.Thermal insulation board can be selected for use like insulating ceramic, heat-intercepting glass, rigidity heat-insulating materials such as asbestos.The profile of its root edge and attaching object contact position can be selected various ways such as cambered surface, plane, contacts with the offgas duct surface with convenient.Between rigidity heat-conducting substrate 33 and radiator 35, form the metastable thermo-electric generation of structure zone.With rigidity heat-conducting substrate 33 is the boundary, and its upper surface portion mainly is responsible for thermo-electric generation, and thermo-electric generation sheet wherein meets the semiconductor temperature differential generating principle, for existing gradually mature technique, will not give unnecessary details now; And its bottom surface section is main relevant with the installation of this thermo-electric generation module.Utilize set flexible heat conducting base 31 and heat conduction spring leaf 32, this thermo-electric generation module 3 can be installed on arbitrary plane or the arc surface.
Above-mentioned flexible heat conducting base is flexible scale copper or other Heat Conduction Material, is connected with rigidity heat conduction platform through the heat conduction spring leaf.When installment state not, flexible heat conducting base is in the natural plane form.When with after attaching object (blast pipe 1) arcwall face contacts, the stressed bending of flexible heat conducting base, its crooked radian and blast pipe cambered surface are coincide.In conjunction with auxiliary material such as heat-conducting silicone greases, realize contacting with the close thermal of automobile tail gas pipe.After the flexible heat conducting base bending, its deformation passes to the heat conduction spring leaf of its top, and the heat conduction spring leaf is connected with rigidity heat conduction platform again, has realized the conversion by curved surface thermal source thermal source to the plane.
Above-mentioned heat conduction spring leaf will be brought into play the effect of three aspects: 1, absorb deformation, and realize the conversion of thermal source face characteristic; 2, the conduction heat is with heat transferred to the rigidity heat conduction platform of flexible heat conducting base absorption; 3, support, on the one hand flexible heat conducting base is played squeezing action, guarantee that flexible heat conducting base contacts with the tight of blast pipe, the rigidity heat conduction platform of extruding top makes rigidity heat conduction platform closely contact with the thermo-electric generation sheet on the other hand.
The further above-mentioned technical scheme of refinement; This thermo-electric generation module contains 3 has plural thermo-electric generation sheet 34; This thermo-electric generation sheet 34 joins with radiator bottom surface and rigidity heat-conducting substrate upper surface respectively, is used for carrying out semiconductor temperature differential generating under the formed violent temperature difference of between.Be the generating efficiency, the minimizing heat energy loss that further improve each thermo-electric generation sheet, present embodiment also is being filled with insulation material layer (white space between two thermo-electric generation sheets, not shown) between each thermo-electric generation sheet.Insulation material layer asbestos, insulating ceramic or adiabatic cotton etc. cover on the rigidity heat conduction platform.Evenly reserve the space in the heat-barrier material, expose rigidity heat conduction platform so that the thermo-electric generation sheet to be installed.Be provided with the circuit of thermo-electric generation sheet in the heat-barrier material, and thickness is tight with the thermo-contact that guarantees thermo-electric generation sheet and cold and hot two ends a little less than thermo-electric generation sheet thickness.The temperature-difference power generation module hot junction is auxiliary with heat-conducting cream and rigidity heat conduction contact with platform; Thermo-electric generation sheet cold junction closely contacts with radiator, and its interface likewise is auxiliary with Heat Conduction Materials such as heat-conducting creams.And again please be as shown in Figure 1, for strengthening the efficient between heat conduction and the thermo-electric generation sheet, the heat conduction spring leaf density at corresponding thermo-electric generation sheet place is greater than the heat conduction spring leaf density of thermo-electric generation sheet at a distance from the vacancy in this thermo-electric generation module.
Here, the distributed architecture about the heat conduction spring leaf has numerous embodiments according to the difference of using.Corresponding attaching object is the situation of cambered surface, and the distribution density of heat conduction spring leaf is gradually close from the mediad periphery in the said temperature difference electricity generation device.Corresponding attaching object is the situation on plane, and the distribution density of heat conduction spring leaf is even in the said temperature difference electricity generation device.In embodiment illustrated in figures 1 and 2, the attaching object of this thermo-electric generation module 3 is a motor vehicle tail blast pipe 1, and the heat conduction spring leaf to be the position of corresponding thermo-electric generation sheet be block distributes, but corresponding each block is the distributed architecture of uniform density.So the heat conduction spring leaf of the visible middle block of structural representation is by significantly compression after the attaching shown in Figure 2, the heat conduction spring leaf of both sides block more shows densification relatively, is prone to the phenomenon that causes heat conduction uneven.This shows that to different application features, the distributed architecture of heat conduction spring leaf has flexible design property.
For improving the adaptability of attaching; Particularly after length variations takes place in flexible heat conducting base 31 distortion; Obviously can not keep well linking to each other with original thermal insulation board; So this thermo-electric generation module 3 also is provided with buffering spring sheet 37, this buffering spring sheet 37 links to each other with the edge of flexible heat conducting base and the root edge of thermal insulation board respectively.According to the length variations of flexible heat conducting base 31 and self stretches or shrink, thereby keep the annexation between flexible heat conducting base 31 and the thermal insulation board 36, play the effect of balance flexibility heat conducting base position simultaneously.
In actual application; The seldom single use of this thermo-electric generation module; But form temperature difference electricity generation device by certain layout or arrangement architecture with several these thermo-electric generation modules; Whole thermo-electric generation modules are fixed on the attaching subject surface through clip, and the output line of each thermo-electric generation module is connected with the vehicle battery group through DC/DC pressurizer cumulative, the completion of modulation back, shroud the shell of a protection and thermal diffusivity again in whole thermo-electric generation modules outside.
As the attaching structure, what embodiment shown in Figure 1 adopted is attaching structure or the mode that clip combines the V-type hinge.Between adjacent two thermo-electric generation modules, connect through the V-type hinge, a side thermo-electric generation module then passes through flexible shell ring around blast pipe 1 and opposite side thermo-electric generation module Joint.Wherein the both wings of V-type hinge are fixed on the thermal insulation board of thermo-electric generation module sides adjacent through screw 71 attachings respectively, and form the angle of special angle between the both wings, or play the auxiliary fixing effect through stiff spring 8, are used for preventing the one end perk of thermo-electric generation assembly.This stiff spring is in the nature contraction state when not installing, be in extended state after the installation.Clip has the main part of flexible barcode and the connecting portion that the main part two ends outwards turn down; Article two, the clip more than through screw mutually from connect and with the thermal insulation board Joint of temperature difference electricity generation device; Its main part can be aluminium, copper, stainless steel, super heated rubber, adiabatic cotton, composite insulation material etc.。Embodiment shown in Figure 1 is clip 21, clip 22 connects through screw 72 mutually certainly; The heat shield of the other end of clip 21 relative clips 22 and a thermo-electric generation module of avris joins; The other end of clip 22 relative clips 21 joins through the heat shield of screw 73 with a thermo-electric generation module of another avris, and is connected through V-type hinge 4 between three thermo-electric generation modules.
Moreover embodiment shown in Figure 2 only adopts the attaching structure or the mode of clip.Be that each thermo-electric generation module adjacent is clamp connection, different is to make the body of clip have difference in length according to the density that module distributes.Mutually longer relatively from clip that connects 21 and clip 22 among the figure, then length is shorter relatively with clip 24 for clip 23.
For further improving the generating efficiency of temperature difference electricity generation device of the present invention, directly promptly be the heat dispersion that strengthens radiator, increase the temperature difference between thermo-electric generation sheet upper and lower surfaces.For accomplishing this point, the present invention also can assist and dispel the heat with modes such as forced air-cooling or recirculated water coolings on the basis of Direct Air-Cooled.Above-mentioned two embodiment provide two kinds of possible implementation respectively, but only limit to this absolutely not.One can add heat radiation gentle breeze fan 5 on the fin of radiator carries out forced air-cooling (as shown in Figure 1); The two can add recirculated water cooler 6 and carry out recirculated water cooling (as shown in Figure 2) on the fin of radiator.
In above-mentioned two embodiment, the course of work of the temperature difference electricity generation device of whole flexible base is: automobile exhaust heat passes to flexible heat conducting base 31 through tube wall, and the heat that flexible heat conducting base 31 absorbs passes to rigidity heat conduction platform 33 by heat conduction spring 32.Thermo-electric generation sheet 34 hot junctions absorb the heat of rigidity heat conduction platform 33, and heat is discharged through radiator 35 after thermoelectric conversion.The electric power that thermo-electric generation sheet 34 produces is drawn through lead-in wire, after the pressure regulation of DC/DC pressurizer, inserts vehicle-mounted accumulating system.
The application implementation of technical scheme of the present invention; Use flexible heat conducting base to cooperate the compatibility of realization of heat conduction spring leaf and different model automobile tail gas pipe; And guaranteed the tight type of thermo-contact; Greatly increase the flexibility of vehicle exhaust pipe differential temperature electricity generating system and effectively reduced to the change of automobile tail gas pipe and the infringement of operating state the convenience that has installation and expand.In addition, substitute the weight that block Heat Conduction Material commonly used can significantly reduce a whole set of TRT, increase the whole energy emission reduction effect of motor vehicle by the heat conduction spring leaf.
Claims (10)
1. the temperature difference electricity generation device of flexible base; Has at least one set in shell thermo-electric generation module; It is characterized in that: said thermo-electric generation module outwards comprises flexible heat conducting base, heat conduction spring leaf, rigidity heat-conducting substrate, thermo-electric generation sheet and radiator successively from the attaching object, and the outside of each said thermo-electric generation module below radiator coats and be provided with thermal insulation board.
2. the temperature difference electricity generation device of flexible base according to claim 1, it is characterized in that: said thermo-electric generation module contains plural thermo-electric generation sheet, and said thermo-electric generation sheet joins with radiator bottom surface and rigidity heat-conducting substrate upper surface respectively.
3. the temperature difference electricity generation device of flexible base according to claim 2 is characterized in that: be filled with insulation material layer between each said thermo-electric generation sheet.
4. the temperature difference electricity generation device of flexible base according to claim 2 is characterized in that: in the said thermo-electric generation module, the heat conduction spring leaf density at corresponding thermo-electric generation sheet place is greater than the heat conduction spring leaf density of thermo-electric generation sheet at a distance from the vacancy.
5. the temperature difference electricity generation device of flexible base according to claim 1, it is characterized in that: corresponding attaching object is the situation of cambered surface, and the distribution density of heat conduction spring leaf is gradually close from the mediad periphery in the said temperature difference electricity generation device.
6. the temperature difference electricity generation device of flexible base according to claim 1, it is characterized in that: corresponding attaching object is the situation on plane, and the distribution density of heat conduction spring leaf is even in the said temperature difference electricity generation device.
7. the temperature difference electricity generation device of flexible base according to claim 1, it is characterized in that: said thermo-electric generation module is provided with buffering spring sheet, and said buffering spring sheet links to each other with the edge of flexible heat conducting base and the root edge of thermal insulation board respectively.
8. the temperature difference electricity generation device of flexible base according to claim 1, it is characterized in that: said temperature difference electricity generation device has plural thermo-electric generation module, and all the thermo-electric generation modules are fixed on the attaching subject surface through clip.
9. the temperature difference electricity generation device of flexible base according to claim 8, it is characterized in that: be provided with the V-type hinge between two adjacent said thermo-electric generation modules, the both wings of said V-type hinge attaching respectively are fixed on the thermal insulation board of thermo-electric generation module sides adjacent.
10. the temperature difference electricity generation device of flexible base according to claim 8; It is characterized in that: main part and the main part two ends that said clip has a flexible barcode are the connecting portion of turnover outwards, the clip more than two through screw mutually from connect and with the thermal insulation board Joint of temperature difference electricity generation device.
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| CN2012101138645A CN102664562A (en) | 2012-04-18 | 2012-04-18 | Temperature difference power generation device of flexible base |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103066892A (en) * | 2012-12-14 | 2013-04-24 | 浙江大学 | External array-type thermoelectric generator single body provided with natural cold end |
| CN104135189A (en) * | 2014-07-18 | 2014-11-05 | 南京航空航天大学 | Device for recycling the residual heat of welding of welded tubes |
| CN104702149A (en) * | 2013-12-09 | 2015-06-10 | 中冶长天国际工程有限责任公司 | Power supply |
| CN104702148A (en) * | 2013-12-09 | 2015-06-10 | 中冶长天国际工程有限责任公司 | Power supply unit and power supply system |
| CN111313758A (en) * | 2020-03-13 | 2020-06-19 | 重庆大学 | Flexible wearable thermoelectric generator applied to human medical treatment and health monitoring |
| CN112993888A (en) * | 2021-02-18 | 2021-06-18 | 杭州富通通信技术股份有限公司 | Skeleton cable |
| CN114923132A (en) * | 2022-06-24 | 2022-08-19 | 新疆八一钢铁股份有限公司 | Intelligent drainage monitoring method for steam drainage valve |
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| CN103066892B (en) * | 2012-12-14 | 2015-02-11 | 浙江大学 | External array-type thermoelectric generator single body provided with natural cold end |
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| CN111313758A (en) * | 2020-03-13 | 2020-06-19 | 重庆大学 | Flexible wearable thermoelectric generator applied to human medical treatment and health monitoring |
| CN111313758B (en) * | 2020-03-13 | 2023-06-06 | 重庆大学 | Flexible wearable thermoelectric generator applied to human medical treatment and health monitoring |
| CN112993888A (en) * | 2021-02-18 | 2021-06-18 | 杭州富通通信技术股份有限公司 | Skeleton cable |
| CN112993888B (en) * | 2021-02-18 | 2022-12-02 | 杭州富通通信技术股份有限公司 | Skeleton cable |
| CN114923132A (en) * | 2022-06-24 | 2022-08-19 | 新疆八一钢铁股份有限公司 | Intelligent drainage monitoring method for steam drainage valve |
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Application publication date: 20120912 |