CN103644016B - The finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell - Google Patents
The finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell Download PDFInfo
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- CN103644016B CN103644016B CN201310597455.1A CN201310597455A CN103644016B CN 103644016 B CN103644016 B CN 103644016B CN 201310597455 A CN201310597455 A CN 201310597455A CN 103644016 B CN103644016 B CN 103644016B
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- heat
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- 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
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Abstract
The invention discloses the finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell, wherein, two identical semicolumn shells of structure are docked on blast pipe, and are fixed by the mode of fastening bolt and welding; Heat transmission fin is by being reserved in above fitting recess on semicolumn shell is arranged on, and fits tightly the thermoelectric generation module of some in fin both sides; One group of thermoelectric generation module in the every one side of fin is arranged to independent square-section thin-walled cooling pipe, and coordinate fastener fixed installation by the support disk at two ends; Install the impact of heat-insulating washer with coolant temperature in reducing cooling duct additional at the diverse location of support disk. The finned automobile exhaust thermoelectric generating device of the straight plate of this cylindrical shell has the advantages such as simple and compact for structure, functional reliability is high, heat-conducting effect is good, with respect to traditional blast pipe thermoelectric generating device, without changing exhaust pipe structure, can not affect exhaust back pressure, be applicable to carrying out large-scale promotion and application.
Description
Technical field
The present invention relates to thermoelectric power generation technical field, belong to a kind of novel engine waste heat and recycle form, specifically refer to onePlant the finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell.
Background technology
Auto industry has accounted for quite high proportion in Chinese national economy, enter 21 century since auto industry rapidly sent outExhibition, the corresponding needed energy of automobile also grows with each passing day, and the development of automobile energy-saving technology receives much concern. At present, automobile engineThe conversion efficiency of energy of utilizing fuel combustion to produce is only 40% left and right, that is to say to have in fuel to exceed 60% energy and do not haveBe utilized effectively, be discharged in atmosphere. And the waste gas that engine is discharged in this energy of 60% has been taken away about gross energy30% to 45% heat, also have in addition the energy of 30% left and right for cooling, these energy overwhelming majority are all with waste heatForm has been dispersed in air, has inevitably wasted mass energy, has caused very serious air pollution. Thermoelectric power generationTechnology is utilized Seebeck effect, directly heat energy is converted into electric energy, has movement-less part, noiseless, pollution-free, work canBy advantages such as, long service life, be widely used in industrial waste heat and reclaimed field, and aspect engine waste heat recovery, heatElectricity generation technology is also considered to a kind of new technique means of potential alternative orthodox car generator. Thermoelectric heat generation system both canEffectively to reclaim engine waste heat, reduce the harmful substance of energy waste and discharge, again can by external circuit by turnThe electrical power storage of changing, in car battery or other energy storage devices, is used for vehicle electronics, effectively raises automobileFuel utilization ratio.
Summary of the invention
The present invention is directed to orthodox car blast pipe thermoelectric generating device to exhaust structure change is large, generated energy is single, power generating deviceContact insufficient, affect the deficiencies such as engine exhaust back pressure, the finned automobile exhaust thermoelectric power generation of the straight plate of a kind of cylindrical shell has been proposedDevice. This device can be arranged between automotive exharst gas catalytic converter and silencer, effectively reclaims engine waste heat to transformElectric energy. Two semicolumn shells directly contact blast pipe, and utilize fastening bolt to connect, to support heat transmission fin, thermoelectric power generation mouldPiece and cooling pipe support disk etc. The direct thermal contact conductance of semicolumn shell and blast pipe, has avoided because adapting to thermoelectric generation moduleSize and structure of modification that blast pipe is carried out can not have any impact to the exhaust back pressure of engine. Cooling pipe is by sending outMotivation cooling system branch road is introduced cooling fluid stream, thermoelectric generation module cold junction is carried out cooling, and cooling pipe is designed to flattened rectangularCross-sectional passage, uniform specification, interface is convenient. Cooling pipe support disk is set at semicolumn shell two ends and passes through with semicolumn shellBolt is connected, and makes whole thermoelectric generating device Stability Analysis of Structures reliable.
In order further to reach object of the present invention, improve thermopower generation efficiency, the semicolumn shell directly contacting with blast pipe adoptsStainless steel structure, the stable and reliable in structure of heat conduction, (automobile ternary is urged can to meet the demand that delivery temperature heat exchanger proposesChanging near the delivery temperature of converter is 770K left and right). Heat transmission fin adopts aluminium alloy structure, and heat-conducting effect is good, Neng GouweiThermoelectric generation module hot junction provides higher temperature, improves the thermoelectric generation module two ends temperature difference to increase generated output. At heat conduction wingBetween sheet and thermoelectric generation module hot junction, smear the heat-conducting silicone grease of some, with the contact heat that reduces to cause due to rough surfaceResistance, further improves thermal conductivity factor. Cooling pipe adopts aluminum alloy materials equally, adopts straight channel, thin-wall rectangular to cut in structureFace, can directly utilize aluminum alloy plate materials processing to be welded, convenient production. Aluminium alloy cooling pipe is by the support disk at two endsCoordinate with fastener fix and with thermoelectric generation module close contact, and form certain pretightning force, make thermoelectric generation moduleAnd fit tightly between heat transmission fin and thermoelectric generation module and cooling pipe. Between support disk and blast pipe and hold roundDish is around arranged and is reduced the heat-insulating washer that heat-insulating material is made to greatest extent due to support disk with the connecting bolt of semicolumn shellThe impact of being heated on coolant temperature in cooling pipe.
The invention has the advantages that:
(1) this device heat transfer efficiency is high, and thermal resistance is less relatively, with respect to orthodox car blast pipe thermoelectric generating device, has improvedThe organic efficiency of exhaust waste heat, is applicable to scale of mass production and uses.
(2) this apparatus structure compactness is simple and easy, and without blast pipe is carried out to any repacking, convenient for installation and maintenance, functional reliability is high.
Brief description of the drawings
Fig. 1 is the structural representation of automobile exhaust thermoelectric generating device of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the A-A profile of Fig. 1.
In figure:
1. blast pipe; 2. support disk A; 3. fastener; 4. cooling pipe; 5. mounting boss;
6. fastening bolt; 7. heat transmission fin; 8. support disk B; 9. thermoelectric generation module; 10. semicolumn shell;
11. connecting bolts; 12. heat-insulating washer A; 13. heat-insulating washer B.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
The invention provides the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell, as shown in Figure 1, described device bagDraw together semicolumn shell 10, heat transmission fin 7, thermoelectric generation module 9, cooling pipe 4, support disk A2, support disk B8, exhaustedHot packing ring A12 and heat-insulating washer B13.
Device provided by the invention is on the blast pipe 1 between Three-component Catalytic Converters for Automobiles and silencer. Referring to Fig. 1 and Tu3, two identical semicolumn shells 10 are closely connected (preferably, one by the fastening bolt 6 on mounting boss 511 fastening bolts 6 are set, altogether 22 fastening bolts 6 of both sides on the mounting boss of side), can also by welding manner incite somebody to actionSemicolumn shell 10 is welded on blast pipe 1, to improve its structural stability, and ensures two semicolumn shells 10 and blast pipe 1Between close contact. Heat transmission fin 7 is arranged on the fitting recess of semicolumn shell 10. If reserved on semicolumn shell 10 surfacesDo the fitting recess that specification is identical and be uniformly distributed circumferentially, the length of fitting recess equates with semicolumn shell 10 axial lengths, and dressThe axis of joining groove is parallel with cylindrical shell axis; The groove depth of fitting recess should not exceed 20% of semicolumn shell 10 axial widths, heat conduction wingThe quantity of sheet 7 can regulate arbitrarily in reserved fitting recess quantity, to meet different generated output demands, as Fig. 3 installsThere are 8 independent heat transmission fins 7. In fitting recess and heat transmission fin 7 smear leading of some with fitting recess contact surfaceHot silicone grease, improves the capacity of heat transmission, and the same position at heat transmission fin 7 two ends and fitting recess two ends is reserved connecting bolt hole all, installs additionalFastening bolt is fixed. Described heat transmission fin 7 can be also and the 10 one machine-shapings of semicolumn shell, be evenly arranged in cylindrical shell10 outer surface. On the cylindrical shell forming at two semicolumn shells 10, the number of heat transmission fin 7 is even number, heat transmission fin 7Position after assembling is vertical with the direction of place semicolumn shell 10 place's tangent lines. On the two sides of each heat transmission fin 7, thermoelectricity is installed and is sent outElectricity module 9, is fixed by welding manner, and on contact-making surface, is evenly coated with high temperature resistant type heat-conducting silicone grease to improve heat conduction systemNumber. Preferably in 6 thermoelectric generation module 9 of the each installation in two sides of each heat transmission fin 7. Thermoelectric generation module 9 canThe HZ20 series thermoelectric power generation sheet that adopts Hi-Z company to produce, monolithic generated output can reach 19W left and right. Each heat transmission finAll electrothermal modules 9 above couple together by electric series system, externally export by DC-DC change-over circuit. Each sideSome thermoelectric generation module 9 cold junctions are unified to be fitted tightly with a cooling pipe 4, adopts equally welding manner fixed and be coated withWith heat-conducting silicone grease. Engine-cooling system is drawn branch road, and by pressure regulator valve, cooling fluid is injected to each cooling pipe 4, makesFlow velocity and the pressure of each cooling pipe 4 interior cooling fluid are consistent, and ensure that the cooling effect of all thermoelectric generation module 9 is even,Coolant flow direction and the engine exhaust direction that flows is parallel but contrary, and cooling fluid is flowed through after each cooling pipe 4 and collected, and logicalCross the pressure that pressure regulator valve is adjusted to engine-cooling system, flow in engine cool pipeline and form and circulate. The semicircle assemblingOn the blast pipe 1 at the two ends of post shell 10, equidistance puts heat-insulating washer B13, and on heat-insulating washer B13, installs identical twoSheet cooling duct support disk A2 and B8, support disk A2 and B8 can adopt the connected mode that is similar to semicolumn shell 10,Be welded by two semi-disc splicings, all processing and cooling pipe 4 size symbols on support disk A2 and support disk B8The groove closing, can clamp each cooling pipe 4 fixed by fastener 3, as Fig. 2, and loads certain pretensionPower, to ensure fitting tightly of thermoelectric generation module 9 and cooling pipe 4 and heat transmission fin 7. Two ends of semicolumn shell 10Face is the screw of reserved some all, and a series of elongated connecting bolts 11 pass through these screws by semicolumn shell 10 and support diskA2 and B8 are connected, but do not contact. Between connecting bolt 11 and support disk A2 and B8, arrange a series of heat-insulating washersA12, reduces to greatest extent because the heat conduction of connecting bolt 11 causes support disk A2 and B8 temperature and raises, and to cooling pipeThe impact of the coolant temperature in 4. Between support disk A2 and B8 and blast pipe 1, be all furnished with heat-insulating washer B13, to keep awayThe heat of exempting from blast pipe 1 conducts to cooling pipe 4 by support disk A2 or B8. Described heat-insulating washer A12 and B13 are equalThe elasticity heat-insulating material manufactures such as rubber can be adopted, after expanded by heating, certain support force can be formed.
Claims (6)
1. the finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell, between Three-component Catalytic Converters for Automobiles and silencerBlast pipe on; It is characterized in that: described device comprises semicolumn shell, heat transmission fin, thermoelectric generation module, cooling tubeRoad, support disk A, support disk B, heat-insulating washer A and heat-insulating washer B; Two identical semicolumn valve jackets existOn blast pipe, semicolumn shell outer surface arranges heat transmission fin, on the two sides of each heat transmission fin, thermoelectric generation module is installed, everyThe some thermoelectric generation module cold junctions of one side are unified to be fitted tightly with cooling pipe, phase on the blast pipe at the two ends of semicolumn shellThe equidistant heat-insulating washer B that puts, and identical two support disk A and B are installed on heat-insulating washer B, each coolingThe two ends of pipeline are clamped and are fixed on by fastener in two described support disk; Described support disk is by connectingBolt is connected on two end faces of semicolumn shell, between described connecting bolt and two support disk, arranges heat-insulating washer;Described heat-insulating washer A and heat-insulating washer B all adopt the manufacture of elasticity heat-insulating material; Two described semicolumn shells are by eachFrom mounting boss on fastening bolt be closely connected on blast pipe; Or by welding manner, semicolumn shell is welded on to rowOn tracheae; Described heat transmission fin is evenly arranged in the outer surface of cylindrical shell, is arranged on the fitting recess of semicolumn shell, fasteningBolt is fixed, or with the machine-shaping of semicolumn shell one.
2. the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell according to claim 1, is characterized in that: instituteThe length of the fitting recess of stating and semicolumn columella are to equal in length, and groove depth is no more than 20% of semicolumn shell axial width.
3. the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell according to claim 1, is characterized in that:In described fitting recess and heat transmission fin and fitting recess contact surface smear heat-conducting silicone grease; Importing fin and thermoelectric power generation mouldOn the contact-making surface of piece, be coated with heat-conducting silicone grease.
4. the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell according to claim 1, is characterized in that: instituteThe thermoelectric generation module of stating adopts HZ20 series thermoelectric power generation sheet, and monolithic generated output reaches 19W.
5. the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell according to claim 1, is characterized in that: instituteIn the cooling pipe of stating, cooling fluid is drawn branch road by engine-cooling system, and by pressure regulator valve, cooling fluid is injected to each cooling tubeIn road, flow velocity and the pressure of cooling fluid in each cooling pipe are consistent, coolant flow direction and engine exhaustFlow direction is parallel but contrary, and cooling fluid is flowed through after each cooling pipe and collected, and is adjusted to engine cool system by pressure regulator valveThe pressure of system, flows in engine cool pipeline and forms and circulate.
6. the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell according to claim 1, is characterized in that: instituteThe cooling pipe cross section of stating is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597455.1A CN103644016B (en) | 2013-11-22 | 2013-11-22 | The finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310597455.1A CN103644016B (en) | 2013-11-22 | 2013-11-22 | The finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell |
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| Publication Number | Publication Date |
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| CN103644016A CN103644016A (en) | 2014-03-19 |
| CN103644016B true CN103644016B (en) | 2016-05-04 |
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| CN201310597455.1A Expired - Fee Related CN103644016B (en) | 2013-11-22 | 2013-11-22 | The finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015220275A (en) * | 2014-05-15 | 2015-12-07 | トヨタ自動車株式会社 | Thermoelectric generator |
| CN104638982B (en) * | 2015-03-05 | 2017-03-15 | 广州威能机电有限公司 | Thermoelectric generator |
| CN105840280A (en) * | 2016-04-15 | 2016-08-10 | 武汉理工大学 | Cylindrical automobile exhaust temperature difference power generation device |
| CN105697110A (en) * | 2016-04-25 | 2016-06-22 | 安徽理工大学 | Automobile exhaust purification and waste heat recovery integrated device |
| CN106089369B (en) * | 2016-07-26 | 2018-11-13 | 山东交通学院 | A kind of composite efficient automobile exhaust purifier |
| CN106602932A (en) * | 2016-12-27 | 2017-04-26 | 江苏大学 | Cylindrical heat source thermoelectric generation device |
| CN107769618A (en) * | 2017-11-13 | 2018-03-06 | 江苏大学 | A kind of detachable automobile tail gas temperature difference electricity generation device |
| CN108183279B (en) * | 2017-12-21 | 2019-09-27 | 长安大学 | A kind of thermal management device of battery based on engine exhaust cogeneration |
| KR102193596B1 (en) * | 2017-12-28 | 2020-12-21 | 고쿠사이 간쿄 가이하츠 가부시키가이샤 | Heating device and its use |
| CN110332028B (en) * | 2019-06-28 | 2021-07-20 | 上海理工大学 | Tail gas low-grade waste heat step power generation device |
| CN111677583A (en) * | 2020-06-29 | 2020-09-18 | 浙江富兴海运有限公司 | Thermoelectric generator and heat collection structure thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4095998A (en) * | 1976-09-30 | 1978-06-20 | The United States Of America As Represented By The Secretary Of The Army | Thermoelectric voltage generator |
| DE102005015016A1 (en) * | 2004-04-02 | 2005-11-10 | Denso Corp., Kariya | Exhaust heat recovery system |
| CN103119263A (en) * | 2010-06-21 | 2013-05-22 | 康宁股份有限公司 | Exhaust gas treatment system including a thermoelectric generator |
| CN103166528A (en) * | 2011-12-15 | 2013-06-19 | 现代自动车株式会社 | Thermoelectric generator of vehicle |
-
2013
- 2013-11-22 CN CN201310597455.1A patent/CN103644016B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4095998A (en) * | 1976-09-30 | 1978-06-20 | The United States Of America As Represented By The Secretary Of The Army | Thermoelectric voltage generator |
| DE102005015016A1 (en) * | 2004-04-02 | 2005-11-10 | Denso Corp., Kariya | Exhaust heat recovery system |
| CN103119263A (en) * | 2010-06-21 | 2013-05-22 | 康宁股份有限公司 | Exhaust gas treatment system including a thermoelectric generator |
| CN103166528A (en) * | 2011-12-15 | 2013-06-19 | 现代自动车株式会社 | Thermoelectric generator of vehicle |
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| CN103644016A (en) | 2014-03-19 |
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