CN103644016A - Cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device - Google Patents
Cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device Download PDFInfo
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- CN103644016A CN103644016A CN201310597455.1A CN201310597455A CN103644016A CN 103644016 A CN103644016 A CN 103644016A CN 201310597455 A CN201310597455 A CN 201310597455A CN 103644016 A CN103644016 A CN 103644016A
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- automobile exhaust
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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
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- 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 a cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device. Two semi-cylindrical shells with identical structures are connected onto an exhaust pipe in an abutting manner and fixed by fastening bolts in a welded mode, heat conducting fins are mounted on assembly grooves reserved in the semi-cylindrical shells, a certain number of thermoelectric generation modules are closely fitted on two sides of the fins, an independent thin-walled cooling pipeline with a rectangular section is arranged on the thermoelectric generation module on each surface of the fins, the cooling pipeline on each surface of the fins is fixedly mounted by supporting disks at two ends and a fastening device, and insulation gaskets are additionally mounted at different positions of the supporting disks to reduce influence on the temperature of cooling liquid in a cooling channel. The cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device has the advantages of simple and compact structure, high working reliability, fine heat conducting effect and the like. Compared with a traditional exhaust pipe thermoelectric generation device, the structure of the exhaust pipe does not need to be changed, exhaust back pressure cannot be affected, and the cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device is suitable for large-scale popularization 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 the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell.
Background technique
Automotive industry has accounted for quite high proportion in Chinese national economy, enter 21 century since automotive industry obtain fast development, the corresponding needed energy of automobile also grows with each passing day, the development of automobile energy-saving technology receives much concern.At present, it is only 40% left and right that motor car engine is utilized the conversion efficiency of the energy of fuel combustion generation, that is to say in fuel and has the energy over 60% not to be utilized effectively, and is discharged in atmosphere.And the waste gas that motor is discharged in this energy of 60% has been taken away 30% to 45% heat of about total energy, also has in addition the energy of 30% left and right for cooling, these energy overwhelming majority are all that the form with waste heat has been dispersed in air, inevitably waste mass energy, caused very serious atmospheric pollution.Thermoelectric power generation technology is utilized Seebeck effect, directly heat energy is converted into electric energy, there is the advantages such as movement-less part, noiseless, pollution-free, reliable operation, long service life, be widely used in industrial waste heat and reclaimed field, and aspect engine waste heat recovery, thermoelectric power generation technology is also considered to a kind of new technique means of potential alternative orthodox car generator.Thermoelectric heat generation system both can effectively reclaim engine waste heat, reduce the harmful matter of energy waste and discharge, again can by external circuit by changed electrical power storage in car battery or other energy storage devices, for vehicle electronics, use, effectively raise the fuel utilization ratio of automobile.
Summary of the invention
The present invention is directed to orthodox car outlet pipe thermoelectric generating device to exhaust structure change is large, generated energy is single, power generating device contact is insufficient, affect the deficiencies such as engine exhaust back pressure, proposed the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell.This device can be arranged between automotive exharst gas catalytic converter and silencing apparatus, effectively reclaims engine waste heat to transform electric energy.Two semicolumn shells directly contact outlet pipe, and utilize clamping bolt to connect, to support heat transmission fin, thermoelectric generation module and cooling pipe support disk etc.The direct thermal contact conductance of semicolumn shell and outlet pipe, has avoided the structure of modification that outlet pipe carried out because adapting to thermoelectric generation module size, to the exhaust back pressure of motor, can not have any impact.Cooling pipe is introduced cooling liquid by engine-cooling system branch road and is flowed, and thermoelectric generation module cold junction is carried out cooling, and cooling pipe is designed to flattened rectangular cross-sectional passage, uniform specification, and interface is convenient.Cooling pipe support disk be set at semicolumn shell two ends and be connected by bolt with semicolumn shell, making whole thermoelectric generating device structural stability reliable.
In order further to reach object of the present invention, improve thermopower generation efficiency, the semicolumn shell directly contacting with outlet pipe adopts stainless steel structure, heat conduction is stablized and reliable in structure, can meet near the demand (Three-component Catalytic Converters for Automobiles, delivery temperature is 770K left and right) that delivery temperature heat exchanger proposes.Heat transmission fin adopts aluminium alloy structure, and heat-conducting effect is good, can provide higher temperature for thermoelectric generation module hot junction, improves the thermoelectric generation module two ends temperature difference to increase generated output.Between heat transmission fin and thermoelectric generation module hot junction, smear the heat-conducting silicone grease of some, the thermal contact resistance to reduce to cause due to rough surface, further improves thermal conductivity.Cooling pipe adopts aluminum alloy material equally, adopts straight passage, thin-wall rectangular cross section in structure, can directly utilize aluminum alloy plate materials processing to be welded, convenient production.The support disk of aluminum alloy cooling pipe by two ends coordinate with securing means fix and with thermoelectric generation module close contact, and form certain pretightening force, make to fit tightly between thermoelectric generation module and heat transmission fin and thermoelectric generation module and cooling pipe.Between support disk and outlet pipe and around the connecting bolt of support disk and semicolumn shell, arrange and reduce to greatest extent the impact of being heated on coolant temperature in cooling pipe due to support disk by the heat-insulating washer that thermoinsulation material is made.
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 outlet pipe thermoelectric generating device, has improved the reuse 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 outlet pipe is carried out to any repacking, convenient for installation and maintenance, functional reliability is high.
Accompanying drawing explanation
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 sectional drawing of Fig. 1.
In figure:
1. outlet pipe; 2. support disk A; 3. securing means; 4. cooling pipe; 5. mounting boss;
6. clamping 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.
Embodiment
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 comprises semicolumn shell 10, heat transmission fin 7, thermoelectric generation module 9, cooling pipe 4, support disk A2, support disk B8, heat-insulating washer A12 and heat-insulating washer B13.
Device provided by the invention is on the outlet pipe 1 between Three-component Catalytic Converters for Automobiles and silencing apparatus.Referring to Fig. 1 and Fig. 3, two identical semicolumn shells 10 are closely connected (preferred by the clamping bolt 6 on mounting boss 5,11 clamping bolts 6 are set on the mounting boss of a side, both sides are 22 clamping bolts 6 altogether), can also semicolumn shell 10 be welded on outlet pipe 1 by welding manner, to improve its structure stability, and guarantee the close contact between two semicolumn shells 10 and outlet pipe 1.Heat transmission fin 7 is arranged on the fitting recess of semicolumn shell 10.Identical in the semicolumn shell 10 reserved some specifications in surface and be uniformly distributed circumferentially fitting recess, the length of fitting recess equates with semicolumn shell 10 axial lengths, and the axis of fitting recess is parallel with cylindrical shell axis; The groove depth of fitting recess should not surpass 20% of semicolumn shell 10 axial thicknesss, and the quantity of heat transmission fin 7 can regulate arbitrarily in reserved fitting recess quantity, to meet different generated output demands, as Fig. 3 is provided with 8 independent heat transmission fins 7.In fitting recess and heat transmission fin 7 smear the heat-conducting silicone grease of some with fitting recess contact surface, improve the capacity of heat transmission, the same position at heat transmission fin 7 two ends and fitting recess two ends is all reserved connecting bolt hole, installs clamping bolt additional and fixes.Described heat transmission fin 7 can be also and the 10 one machine shapings of semicolumn shell to be evenly arranged in the outer surface of cylindrical shell 10.On two formed cylindrical shells of semicolumn shell 10, the number of heat transmission fin 7 is even number, and the position after heat transmission fin 7 assemblings is vertical with the direction of place semicolumn shell 10 place's tangent lines.On the two sides of each heat transmission fin 7, thermoelectric generation module 9 is installed, by welding manner, fixed, and on surface of contact, be evenly coated with high temperature resistant type heat-conducting silicone grease to improve thermal conductivity.Preferably in two sides of each heat transmission fin 7,6 thermoelectric generation module 9 are respectively installed.The HZ20 series thermoelectric power generation sheet that thermoelectric generation module 9 can adopt Hi-Z company to produce, monolithic generated output can reach 19W left and right.Each all electrothermal module 9 above heat transmission fin couples together by electric serial fashion, by DC-DC change-over circuit, externally exports.Some thermoelectric generation module 9 cold junctions unifications of each side fit tightly with a cooling pipe 4, adopt equally welding manner to be fixed and be coated with heat-conducting silicone grease.Engine-cooling system is drawn branch road, and by pressure regulator valve, cooling liquid is injected to each cooling pipe 4, flow velocity and the pressure of each cooling pipe 4 interior cooling liquid are consistent, the cooling effect that guarantees all thermoelectric generation module 9 is even, coolant flow direction is parallel but contrary with the mobile direction of engine exhaust, cooling liquid is flowed through after each cooling pipe 4 and is collected, and by pressure regulator valve, is adjusted to the pressure of engine-cooling system, flows to and in engine cooling pipeline, forms circulation.On the outlet pipe 1 at the two ends of the semicolumn shell 10 assembling, equidistance puts heat-insulating washer B13, and identical two cooling channel support disk A2 and B8 be installed on heat-insulating washer B13, support disk A2 and B8 can adopt the Placement that is similar to semicolumn shell 10, by two semi-disc splicings, be welded, on support disk A2 and support disk B8, all process the groove with cooling pipe 4 size conforms, each cooling pipe 4 can be clamped and fixed by securing means 3, as Fig. 2, and load certain pretightening force, to guarantee fitting tightly of thermoelectric generation module 9 and cooling pipe 4 and heat transmission fin 7.Two end faces of semicolumn shell 10 are the screw of reserved some all, and a series of elongated connecting bolts 11 are connected semicolumn shell 10 by these screws with support disk A2 and B8, but do not contact.Between connecting bolt 11 and support disk A2 and B8, arrange a series of heat-insulating washer A12, the heat conduction reducing to greatest extent due to connecting bolt 11 causes support disk A2 and B8 temperature to raise, and impact on the coolant temperature in cooling pipe 4.Between support disk A2 and B8 and outlet pipe 1, be all furnished with heat-insulating washer B13, to avoid the heat of outlet pipe 1 to conduct to cooling pipe 4 by support disk A2 or B8.Described heat-insulating washer A12 and B13 all can adopt the elasticity thermoinsulation material manufactures such as rubber, after expanded by heating, can form certain support force.
Claims (9)
1. the finned automobile exhaust thermoelectric generating device of the straight plate of cylindrical shell, on the outlet pipe between Three-component Catalytic Converters for Automobiles and silencing apparatus; It is characterized in that: described device comprises semicolumn shell, heat transmission fin, thermoelectric generation module, cooling pipe, support disk A, support disk B, heat-insulating washer A and heat-insulating washer B; Two identical semicolumn valve jackets are on outlet pipe, semicolumn shell outer surface arranges heat transmission fin, thermoelectric generation module is installed on two sides at each heat transmission fin, some thermoelectric generation module cold junctions unifications of each side fit tightly with cooling pipe, on the outlet pipe at the two ends of semicolumn shell, equidistance puts heat-insulating washer B, and identical two support disk A and B are installed on heat-insulating washer B, the two ends of each cooling pipe are clamped and are fixed on by securing means in two described support disk; Described support disk is connected to by connecting bolt on two end faces of semicolumn shell, between described connecting bolt and two support disk, arranges heat-insulating washer.
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: described heat-insulating washer A and heat-insulating washer B all adopt the manufacture of elasticity thermoinsulation material.
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: two described semicolumn shells are closely connected on outlet pipe by the clamping bolt on mounting boss separately; Or by welding manner, semicolumn shell is welded on outlet pipe 1.
4. the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell according to claim 1, it is characterized in that: described heat transmission fin is evenly arranged in the outer surface of cylindrical shell, be arranged on the fitting recess of semicolumn shell, clamping bolt is fixed, or with the machine shaping of semicolumn shell one.
5. the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell according to claim 4, is characterized in that: the length of described fitting recess and semicolumn columella are to equal in length, and groove depth is no more than 20% of semicolumn shell axial thickness.
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: described in fitting recess and heat transmission fin and fitting recess contact surface smear heat-conducting silicone grease; On the surface of contact that imports fin and thermoelectric generation module, be coated with heat-conducting silicone grease.
7. 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: described thermoelectric generation module adopts HZ20 series thermoelectric power generation sheet, and monolithic generated output reaches 19W.
8. the finned automobile exhaust thermoelectric generating device of the straight plate of a kind of cylindrical shell according to claim 1, it is characterized in that: in described cooling pipe, cooling liquid is drawn branch road by engine-cooling system, and by pressure regulator valve, cooling liquid is injected to each cooling pipe, flow velocity and the pressure of cooling liquid in each cooling pipe are consistent, coolant flow direction is parallel but contrary with the mobile direction of engine exhaust, cooling liquid is flowed through after each cooling pipe and is collected, and by pressure regulator valve, be adjusted to the pressure of engine-cooling system, flow in engine cooling pipeline and form and circulate.
9. 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: described cooling pipe cross section is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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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| 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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| CN103644016A true CN103644016A (en) | 2014-03-19 |
| CN103644016B CN103644016B (en) | 2016-05-04 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638982A (en) * | 2015-03-05 | 2015-05-20 | 广州威能机电有限公司 | Thermoelectric generator |
| CN105089752A (en) * | 2014-05-15 | 2015-11-25 | 丰田自动车株式会社 | Thermoelectric generator |
| CN105697110A (en) * | 2016-04-25 | 2016-06-22 | 安徽理工大学 | Automobile exhaust purification and waste heat recovery integrated device |
| CN105840280A (en) * | 2016-04-15 | 2016-08-10 | 武汉理工大学 | Cylindrical automobile exhaust temperature difference power generation device |
| CN106089369A (en) * | 2016-07-26 | 2016-11-09 | 郭荣春 | 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 |
| CN108183279A (en) * | 2017-12-21 | 2018-06-19 | 长安大学 | A kind of thermal management device of battery based on engine exhaust cogeneration |
| CN110332028A (en) * | 2019-06-28 | 2019-10-15 | 上海理工大学 | A kind of tail gas low grade residual heat step power generator |
| CN111108809A (en) * | 2017-12-28 | 2020-05-05 | 国际环境开发株式会社 | Heating device and application thereof |
| 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 |
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| 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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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 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089752A (en) * | 2014-05-15 | 2015-11-25 | 丰田自动车株式会社 | Thermoelectric generator |
| CN104638982A (en) * | 2015-03-05 | 2015-05-20 | 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 |
| CN106089369A (en) * | 2016-07-26 | 2016-11-09 | 郭荣春 | 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 |
| CN108183279A (en) * | 2017-12-21 | 2018-06-19 | 长安大学 | A kind of thermal management device of battery based on engine exhaust cogeneration |
| CN111108809A (en) * | 2017-12-28 | 2020-05-05 | 国际环境开发株式会社 | Heating device and application thereof |
| CN111108809B (en) * | 2017-12-28 | 2022-08-16 | 国际环境开发株式会社 | Heating device and application thereof |
| CN110332028A (en) * | 2019-06-28 | 2019-10-15 | 上海理工大学 | A kind of tail gas low grade residual heat step power generator |
| 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 |
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