CN105604661A - Device for power generation by waste heat of automobile exhaust pipes - Google Patents
Device for power generation by waste heat of automobile exhaust pipes Download PDFInfo
- Publication number
- CN105604661A CN105604661A CN201610126872.1A CN201610126872A CN105604661A CN 105604661 A CN105604661 A CN 105604661A CN 201610126872 A CN201610126872 A CN 201610126872A CN 105604661 A CN105604661 A CN 105604661A
- Authority
- CN
- China
- Prior art keywords
- heat
- power generation
- exhaust pipe
- automobile exhaust
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 9
- 238000010248 power generation Methods 0.000 title abstract description 9
- 238000009413 insulation Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000005678 Seebeck effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
- F01N5/025—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat the device being thermoelectric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/082—Other arrangements or adaptations of exhaust conduits of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a device for power generation by waste heat of automobile exhaust pipes. The device comprises an exhaust pipe sleeve in a subdivision structure, the exhaust pipe sleeve comprises an upper cover and a base, and the cross sectional area of the base is larger than that of the upper cover. The base with the cross section having a rectangular upper portion and an inverted trapezoidal lower portion is provided with a heat conducting body and a heat insulation shell, the inner side of the heat conducting body is close to the outer surface of an exhaust pipe, the outer side of the heat conducting body is close to a high-temperature surface of a thermoelectric power generation plate, and a heat dissipation device is arranged on a low-temperature surface of the thermoelectric power generation plate. A heat insulation ring is arranged around the thermoelectric power generation plate and clamped between the heat insulation shell and the heat dissipation device. The device can be selectively connected with a battery and/or an electric turbocharger on an automobile according to requirements, and energy accumulation is realized while electric energy generated by the thermoelectric power generation plate can be used in real time. In addition, the device has the advantages of simple structure, convenience in mounting and high power generation efficiency.
Description
Technical field
The present invention relates to energy-conserving and emission-cutting technology field, particularly a kind of semiconductor temperature differential generating that adopts is to automobile exhaust pipe used heatCarry out the energy saver of cycling and reutilization.
Background technology
Along with the increase of automobile quantity, the energy of vehicle consumption grows with each passing day, vehicle energy-conservation also more and more concerned. ForInternal combustion engine in automobile, in fuel oil, the energy of 60% left and right is not utilized effectively, and the overwhelming majority is with the form discharge of waste gasIn atmosphere, huge economic loss and serious environmental pollution are caused. Automobile operation process in, automobile exhaust pipeTemperature can reach 600-800 DEG C, according to semi-conductive thermoelectricity principle, waste gas residual heat can be converted into electric energy, has goodEconomic and social benefit.
Thermo-electric generation is a kind of novel generation mode, utilizes Seebeck effect that heat energy is directly converted to electric energy. So-called plugBake effect is by mutual the two ends of conductor (or semiconductor) A and B close contact composition loop, if protect in two connection placesHold different temperatures T1With T2, will be because temperature difference produces thermoelectromotive force in loop. In general thermoelectric generatorEfficiency mainly determined by the temperature difference of composition material and high low-temperature end, for reaching good working condition, need to further grindStudy carefully the relation between best power generation performance and cold warm end temperature difference, select suitable operating temperature to make power generating device in maximum efficiencyBring into play its effect.
Summary of the invention
The present invention provides a kind of using waste heat from automobile exhaust pipe TRT for solving the technical problem existing in known technology, shouldDevice can utilize the cogeneration of automobile exhaust pipe in maximum efficiency.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is: more than a kind of automobile exhaust pipeThermal electric generator, comprises exhaust shroud, and described exhaust shroud adopts subdivision structure, is provided with upper cover and base, described baseCross-sectional area larger than the cross-sectional area of described upper cover, the cross section top of described base is that rectangular lower is inverted trapezoidal, instituteState base and be provided with heat conduction body and lagging casing, the inner side of described heat conduction body and the outer surface of blast pipe next-door neighbour, described in leadThe high temperature face next-door neighbour of the outside of hot body and thermo-electric generation sheet is provided with heat abstractor on the low temperature face of described thermo-electric generation sheet,Around described thermo-electric generation sheet, be provided with adiabatic ring, described adiabatic ring is installed in described lagging casing and described heat abstractorBetween.
Described adiabatic ring is fixed on described heat abstractor.
Described heat abstractor adopts finned heat sink, and the area of described finned heat sink is greater than the area of described generating sheet.
The top and bottom of described finned heat sink are equipped with fin, and described fin is provided with gradient.
Advantage and good effect that the present invention has are: adopt inverted trapezoidal structure by the base that makes exhaust shroud, make the temperature differenceThe generating hot junction of sheet and the contact area of heat conduction body are less, and the hot junction heat flow density and the temperature that have improved thermo-electric generation sheet are equalEven property; The finned heat sink contact with thermo-electric generation sheet cold junction small size by adopting, large area being dispelled the heat, has accelerated the temperature differenceThe heat radiation of generating sheet, has reduced the cold junction temperature of thermo-electric generation sheet. Thermo-electric generation sheet hot junction heat flow density is large, temperature is even,Cold junction area of dissipation is large, makes the cold warm end temperature difference of thermo-electric generation sheet larger, has improved conversion efficiency of thermoelectric; Exhaust shroud adoptsSplit type structure, and upper cover small volume, be not only convenient to exhaust shroud and blast pipe is combined closely, and improves conversion efficiency, andAnd reduce exhaust shroud and taken up space, made the easier for installation of exhaust shroud; Employing is provided with the temperature difference and sends out in thermal insulation ringThe structure of electricity sheet circuit, is convenient to heat transmission. The present invention can select as required with automobile on battery and/or electronicTurbocharger connects, and the electric energy that both can utilize in real time thermoelectric generator to send, also can accumulation of energy. In sum, originallyInvent simple in structure, easy for installation, generating efficiency is high.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present invention;
Fig. 2 is that the present invention removes the space structure schematic diagram after finned heat sink;
Fig. 3 is finned heat sink space structure schematic diagram of the present invention.
In figure: 1, blast pipe, 2, upper cover, 3, heat conduction body, 4, thermo-electric generation sheet, 5, adiabatic ring, 6, wing formulaFin, 7, lagging casing, 8, screw, 9, installing hole.
Detailed description of the invention
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawingBe described in detail as follows:
Refer to Fig. 1~Fig. 3, a kind of using waste heat from automobile exhaust pipe TRT, comprises exhaust shroud, and described exhaust shroud is adoptedUse subdivision structure, be provided with upper cover 2 and base, the cross-sectional area of described base is larger than the cross-sectional area of described upper cover, described inThe cross section top of base is that rectangular lower is inverted trapezoidal, and described base is provided with heat conduction body 3 and lagging casing 7, described in leadThe outer surface next-door neighbour of the inner side of hot body 3 and blast pipe 1, the height of the outside of described heat conduction body 3 and thermo-electric generation sheet 4Temperature face next-door neighbour is provided with heat abstractor on the low temperature face of described thermo-electric generation sheet 4; Around described thermo-electric generation sheet 4Be provided with adiabatic ring 5, described adiabatic ring 5 is installed between described lagging casing 7 and described heat abstractor.
In the present embodiment, described adiabatic ring 5 is fixed on described heat abstractor. Described heat abstractor adopts the heat radiation of wing formulaSheet 6, the area of described finned heat sink 6 is greater than the area of described generating sheet 4. The top and bottom of described finned heat sink 6 are equalBe provided with fin, described fin is provided with gradient, is convenient to Foundry Production. When installation, should make fin direction and the car of finned heat sinkTravel direction is consistent, contributes to air flow stream in Vehicle Driving Cycle to cross each heat-transfer surface of fin. In the present embodiment, described inUpper cover 2 adopts screw 8 to be connected with described base. On described finned heat sink 6, be provided with installing hole 9.
Operation principle of the present invention is: the efficiency of semiconductor power generation device is relevant with the electrothermal module two ends temperature difference. The two ends temperature differenceLarger, generating efficiency is higher. Therefore the present invention, by one end of heat conduction body and discharge duct large area close contact, will leadCombine closely in the hot junction of the other end of hot body and thermo-electric generation sheet, and both contacts area are less; Thermo-electric generation sheetCold junction and finned heat sink close contact, the contact area of finned heat sink and air is larger, can send out with air rapidlyRaw convection current sheds heat. Thermo-electric generation sheet hot junction contact area is little, heat flow density is large, temperature homogeneity good, and cold junction is looseHot side is long-pending large, and the temperature difference at thermo-electric generation sheet two ends is larger, and conversion efficiency of thermoelectric is high.
When the present invention applies, the specification of thermo-electric generation sheet 4 and quantity should be come according to the size of automobile exhaust pipe 1 and temperatureDetermine, and be linked to be circuit in modes such as serial or parallel connections. In the time of running car, automobile exhaust pipe 1 discharges a large amount of high temperatureGas, heat conducts to generating sheet hot junction by highly heat-conductive material. Because exhaust shroud base adopts the up big and down small ladder that fallsShape structure, making to generate electricity, sheet hot junction heat flow density is large, temperature is even. Because of Air Forced Convection, finned heat sink sheds in a large numberHeat, reaches compared with the large temperature difference thermo-electric generation sheet 4 high temperature face and low temperature face and produces direct current.
Although by reference to the accompanying drawings the preferred embodiments of the present invention are described above, the present invention is not limited to above-mentionedDetailed description of the invention, above-mentioned detailed description of the invention is only schematically, is not restrictive, this area generalLogical technical staff, under enlightenment of the present invention, is not departing from the scope situation that aim of the present invention and claim protect,Can also make a lot of forms, within these all belong to protection scope of the present invention.
Claims (4)
1. a using waste heat from automobile exhaust pipe TRT, is characterized in that, comprises exhaust shroud, and described exhaust shroud adoptsSubdivision structure, is provided with upper cover and base, and the cross-sectional area of described base is larger than the cross-sectional area of described upper cover, described baseCross section top be that rectangular lower is inverted trapezoidal, described base is provided with heat conduction body and lagging casing, described heat conduction bodyInner side and the outer surface next-door neighbour of blast pipe, the high temperature face of the outside of described heat conduction body and thermo-electric generation sheet is close to, in instituteThe low temperature face of stating thermo-electric generation sheet is provided with heat abstractor, is provided with adiabatic ring around described thermo-electric generation sheet, described exhaustedHeat ring is installed between described lagging casing and described heat abstractor.
2. using waste heat from automobile exhaust pipe TRT according to claim 1, is characterized in that, described adiabatic ring is fixingOn described heat abstractor.
3. using waste heat from automobile exhaust pipe TRT according to claim 1, is characterized in that, described heat abstractor is adoptedWith finned heat sink, the area of described finned heat sink is greater than the area of described generating sheet.
4. using waste heat from automobile exhaust pipe TRT according to claim 3, is characterized in that, described finned heat sinkTop and bottom be equipped with fin, described fin is provided with gradient.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201610126872.1A CN105604661A (en) | 2016-03-07 | 2016-03-07 | Device for power generation by waste heat of automobile exhaust pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610126872.1A CN105604661A (en) | 2016-03-07 | 2016-03-07 | Device for power generation by waste heat of automobile exhaust pipes |
Publications (1)
Publication Number | Publication Date |
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CN105604661A true CN105604661A (en) | 2016-05-25 |
Family
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Family Applications (1)
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CN201610126872.1A Pending CN105604661A (en) | 2016-03-07 | 2016-03-07 | Device for power generation by waste heat of automobile exhaust pipes |
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CN (1) | CN105604661A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105928376A (en) * | 2016-06-12 | 2016-09-07 | 上海电力学院 | Waste heat recycling system based on temperature difference power generation |
CN106253752A (en) * | 2016-09-13 | 2016-12-21 | 天津大学 | A kind of mobile vehicle alarm device with independent current source |
CN106329998A (en) * | 2016-09-13 | 2017-01-11 | 天津大学 | Automobile exhaust waste heat thermoelectric generator device adopting phase change materials |
CN106837493A (en) * | 2016-08-27 | 2017-06-13 | 东莞市美谷电子科技有限公司 | The vehicle GPS that a kind of thermo-electric generation sheet is powered |
CN107334440A (en) * | 2017-03-16 | 2017-11-10 | 宁波方太厨具有限公司 | Dry cleaning machine can be accelerated |
CN107642399A (en) * | 2017-09-06 | 2018-01-30 | 哈尔滨工程大学 | The fan forced Surge Prevention System of diesel exhaust cogeneration |
CN107642400A (en) * | 2017-09-06 | 2018-01-30 | 哈尔滨工程大学 | The fan forced system of diesel exhaust cogeneration |
CN112140830A (en) * | 2019-06-28 | 2020-12-29 | 长城汽车股份有限公司 | Energy feedback device, vehicle air conditioning system, vehicle and control method |
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CN2667796Y (en) * | 2003-12-22 | 2004-12-29 | 中国电子科技集团公司第十八研究所 | Thermo electric apparatus for power supplying to oil transfer pipe monitoring and alarming units |
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JP2007165560A (en) * | 2005-12-13 | 2007-06-28 | Mazda Motor Corp | Waste heat generator |
CN101436838A (en) * | 2008-12-19 | 2009-05-20 | 清华大学 | Apparatus for thermo-electric generation using vehicle exhaust pipe |
CN201277082Y (en) * | 2008-11-03 | 2009-07-22 | 厦门大学 | Thermo-electric generation type vehicle energy-saving emission-reducing device |
CN101562415A (en) * | 2009-05-26 | 2009-10-21 | 广东富信电子科技有限公司 | Generator |
CN205400867U (en) * | 2016-03-07 | 2016-07-27 | 天津大学 | Vehicle vent -pipe waste heat power generation device |
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KR20050005260A (en) * | 2003-07-01 | 2005-01-13 | 주식회사 브로스아이엔씨 | power saving type thermo-element unit |
CN2667796Y (en) * | 2003-12-22 | 2004-12-29 | 中国电子科技集团公司第十八研究所 | Thermo electric apparatus for power supplying to oil transfer pipe monitoring and alarming units |
JP2007165560A (en) * | 2005-12-13 | 2007-06-28 | Mazda Motor Corp | Waste heat generator |
CN201277082Y (en) * | 2008-11-03 | 2009-07-22 | 厦门大学 | Thermo-electric generation type vehicle energy-saving emission-reducing device |
CN101436838A (en) * | 2008-12-19 | 2009-05-20 | 清华大学 | Apparatus for thermo-electric generation using vehicle exhaust pipe |
CN101562415A (en) * | 2009-05-26 | 2009-10-21 | 广东富信电子科技有限公司 | Generator |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105928376A (en) * | 2016-06-12 | 2016-09-07 | 上海电力学院 | Waste heat recycling system based on temperature difference power generation |
CN106837493A (en) * | 2016-08-27 | 2017-06-13 | 东莞市美谷电子科技有限公司 | The vehicle GPS that a kind of thermo-electric generation sheet is powered |
CN106253752A (en) * | 2016-09-13 | 2016-12-21 | 天津大学 | A kind of mobile vehicle alarm device with independent current source |
CN106329998A (en) * | 2016-09-13 | 2017-01-11 | 天津大学 | Automobile exhaust waste heat thermoelectric generator device adopting phase change materials |
CN107334440A (en) * | 2017-03-16 | 2017-11-10 | 宁波方太厨具有限公司 | Dry cleaning machine can be accelerated |
CN107334440B (en) * | 2017-03-16 | 2023-08-18 | 宁波方太厨具有限公司 | Cleaning machine capable of accelerating drying |
CN107642399A (en) * | 2017-09-06 | 2018-01-30 | 哈尔滨工程大学 | The fan forced Surge Prevention System of diesel exhaust cogeneration |
CN107642400A (en) * | 2017-09-06 | 2018-01-30 | 哈尔滨工程大学 | The fan forced system of diesel exhaust cogeneration |
CN112140830A (en) * | 2019-06-28 | 2020-12-29 | 长城汽车股份有限公司 | Energy feedback device, vehicle air conditioning system, vehicle and control method |
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Application publication date: 20160525 |