CN110030066A - A kind of residual heat of tail gas of automobile recycling and reusing system - Google Patents
A kind of residual heat of tail gas of automobile recycling and reusing system Download PDFInfo
- Publication number
- CN110030066A CN110030066A CN201910406698.XA CN201910406698A CN110030066A CN 110030066 A CN110030066 A CN 110030066A CN 201910406698 A CN201910406698 A CN 201910406698A CN 110030066 A CN110030066 A CN 110030066A
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- Prior art keywords
- heat
- exhaust pipe
- outlet
- tail gas
- engine
- Prior art date
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- 238000004064 recycling Methods 0.000 title claims abstract description 40
- 239000002826 coolant Substances 0.000 claims abstract description 101
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 238000001816 cooling Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 239000000498 cooling water Substances 0.000 claims description 35
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 16
- 238000011084 recovery Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 50
- 238000010521 absorption reaction Methods 0.000 description 10
- 230000004087 circulation Effects 0.000 description 9
- 239000002918 waste heat Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000505 pernicious effect Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000001839 systemic circulation Effects 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
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N19/00—Starting aids for combustion engines, not otherwise provided for
- F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
- F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
- F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- 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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning For Vehicles (AREA)
- Exhaust Silencers (AREA)
Abstract
The present invention provides a kind of residual heat of tail gas of automobile recycling and reusing system applied to technical field of automobile engine, close to air inlet tapered end (33) setting front end end plate (35) between the outer shell (31) and inner shell (32) of the heat exchanger (6) of the residual heat of tail gas of automobile recycling and reusing system, close to outlet tapered end (34) setting rear end end plate (36) between outer shell (31) and inner shell (32), multiple flat tubes (37) are inserted between front end end plate (35) and rear end end plate (36), fin (38) are inserted respectively in each flat tube (37), gap portion is set between each flat tube (37) and the fin (38) being inserted into the flat tube (37), residual heat of tail gas of automobile recycling and reusing system of the invention, it can be from vehicle exhaust in cold-starting automobile Middle recovery section heat, the coolant liquid being reused in heating car engine cooling system is fast and reliable to carry out warming-up to engine, improves thermal efficiency when engine cold-start.
Description
Technical field
The invention belongs to technical field of automobile engine, are to be related to a kind of recycling of residual heat of tail gas of automobile again more specifically
Utilize system.
Background technique
More and more nervous in global energy situation, environmental protection is more and more very urgent, and countries in the world car ownership
Continue under surging industry overall background again, conventional fuel oil automobile and hybrid vehicle face huge energy-saving and emission-reduction pressure.It is right
For orthodox car engine, water temperature when cold start-up in engine water jacket is lower, at this time each components lubrication effect of engine
Fruit is poor, and frictional force is big, and the thermal efficiency is lower, and burning is also more insufficient in cylinder body at this time, so generation and the row of pernicious gas
Higher thermal efficiency when currently without preferable method promotion engine cold-start is put, emission reduction is also by exhaust system three
First catalytic converter is completed, and the delivery temperature and flow when cold start-up are lower, so the effect of three-element catalytic and bad.This
Outside, what the heating of winter main cabin was also cold-started is affected, until the coolant temperature in engine water jacket is increased to 80 DEG C of left sides
Main cabin heat energy supply requirement can just be guaranteed when right systemic circulation is opened.The thermal efficiency one of orthodox car power assembly system
As only 30-40%, engine-cooling system heat dissipation and the thermal energy taken away of exhaust system respectively account for 30% or so.Improve engine sheet
Body heat efficiency is a technology path, but there are biggish technical difficulty, and room for promotion is extremely limited.
Summary of the invention
The technical problems to be solved by the present invention are: being directed to the deficiencies in the prior art, it is simple to provide a kind of structure,
In cold-starting automobile can by heat exchanger quickly, heat is efficiently recycled from vehicle exhaust, be reused in heating automobile
Coolant liquid in engine-cooling system improves heat when engine cold-start so that fast and reliable carry out warming-up to engine
Efficiency and in-cylinder combustion adequacy, a large amount of pernicious gases for insufficient generation of burning when to reducing cold start-up protect environment, together
When can also make the heating of winter main cabin that can be rapidly heated, more than the vehicle exhaust for improving interior driver and passenger's human thermal comfort
Recuperation of heat reutilization system.
Solve the problems, such as techniques discussed above, the technical scheme adopted by the invention is as follows:
The present invention is a kind of residual heat of tail gas of automobile recycling and reusing system, the residual heat of tail gas of automobile recycling and reusing system
System includes engine body, exhaust manifold, exhaust pipe, and the exhaust pipe includes exhaust pipe branch pipe pipeline I and exhaust pipe branch pipe
Heat exchanger is arranged on exhaust pipe branch pipe pipeline II for pipeline II, setting bypass valve actuator and by-passing valve, by-passing valve on exhaust pipe
Actuator 7 is configured to the mobile structure in valve block position of control by-passing valve, coolant line one end and engine body
The connection of cooling water channel water outlet, coolant line connect with the cooling water channel water return outlet of engine body again after over-heat-exchanger
Logical, heat exchanger includes outer shell, inner shell, and air inlet tapered end, the setting of the heat exchanger other end is arranged in heat exchanger one end
Front end end plate is arranged close to air inlet tapered end between outer shell and inner shell in outlet tapered end, outer shell and inner shell it
Between close to outlet tapered end, rear end end plate is set, insert multiple flat tubes between front end end plate and rear end end plate, in each flat tube respectively
Fin is inserted, is welded to connect between each flat tube and the fin being inserted into the flat tube, gap portion, outer layer are set in each fin
Inlet tube is set on shell and outlet tube, inlet tube are connected to the cooling line of engine body, outlet tube and engine body
Cooling line connection, heat exchanger outlet cooling-water temperature transmitter is arranged in coolant line position through over-heat-exchanger,
The heat exchanger outlet cooling-water temperature transmitter is connect with control unit, and bypass valve actuator is connect with control unit.
The cavity portion of annular is formed between the outer shell and inner shell, front end end plate and rear end end plate are ring
Shape structure, along rear end in the multiple front end apertures by gap arrangement of setting in front end end plate one week, rear end end plate on the end plate of front end
The multiple rear end apertures by gap arrangement of setting in end plate one week, before one be inserted on the end plate of front end is fixed in each flat tube one end
It holds in aperture, each flat tube other end fixation is inserted on the end plate of rear end in a corresponding rear end aperture.
The gap between different flat tubes between the outer shell and inner shell is water route cavity, the feed liquor
Pipe and outlet tube are connected to water route cavity respectively；When vehicle exhaust is through over-heat-exchanger, vehicle exhaust is configured to from difference
The structure that the gap portion of fin inside flat tube is passed through.Assembly is brazed between each flat tube and the fin being inserted into the flat tube.
The by-passing valve includes shaft, valve block, and valve block is fixedly mounted in the shaft, and shaft is mounted on inner shell
Interior, one end that shaft extends to outside outer shell is connect with bypass valve actuator.
It is set as being stored with the structure that recuperation of heat terminates set temperature numerical value in the control unit, engine body opens
After dynamic, when the heat exchanger outlet coolant liquid actual temperature numerical value that heat exchanger outlet cooling-water temperature transmitter detects is lower than
When recuperation of heat terminates set temperature numerical value, the valve block that control unit is configured to control bypass valve actuator control by-passing valve is moved
The dynamic structure for blocking exhaust pipe branch pipe pipeline I.
Described obtain is set as being stored with the structure that recuperation of heat terminates set temperature numerical value in control unit, engine body opens
After dynamic, when the heat exchanger outlet coolant liquid actual temperature numerical value that heat exchanger outlet cooling-water temperature transmitter detects is higher than
When recuperation of heat terminates set temperature numerical value, the valve block that control unit is configured to control bypass valve actuator control by-passing valve is moved
The dynamic structure for blocking exhaust pipe branch pipe pipeline II.
The residual heat of tail gas of automobile recycling and reusing system further includes heater cores, and heater cores one end passes through hot air hose
Road I is connected to the cooling water channel water outlet of engine body, and the heater cores other end passes through warm wind pipeline II and engine body
Cooling water channel water return outlet connection, heater cores side be arranged air blower.
The coolant line includes A sections of coolant line, B sections of coolant line, the coolant pipe of coolant line
Road A sections of one end is connected to the cooling water channel water outlet of engine body, the feed liquor of coolant line A sections of other ends and heat exchanger
Pipe connection, the outlet tube of heat exchanger are connected to B sections of one end of coolant line, B sections of other ends of coolant line and engine sheet
The cooling water channel water return outlet of body is connected to.
After the exhaust pipe includes exhaust pipe leading portion, exhaust pipe branch pipe pipeline I and exhaust pipe branch pipe pipeline II, exhaust pipe
Section, I one end of exhaust pipe branch pipe pipeline are connected to exhaust pipe leading portion, and I other end of exhaust pipe branch pipe pipeline is connected to exhaust pipe back segment,
II one end of exhaust pipe branch pipe pipeline is connected to exhaust pipe leading portion, and II other end of exhaust pipe branch pipe pipeline is connected to exhaust pipe back segment.
Using technical solution of the present invention, can obtain it is below the utility model has the advantages that
Residual heat of tail gas of automobile recycling and reusing system of the present invention, to realize waste heat recycling and reusing, from engine
Set about in terms of cooling system and exhaust system, consider from temperature angle, the waste heat quality of engine-cooling system compares exhaust system
It is much lower, so residual heat of tail gas of automobile recovery system becomes research emphasis.It is arranged by above structure, when engine body (hair
Motivation) cold start-up when, control unit detects coolant temperature by heat exchanger outlet cooling-water temperature transmitter, when detecting
Actual temperature lower than recuperation of heat terminate set temperature TSET(generally at 80 DEG C or so), at this point, control unit is caused by by-passing valve
The valve block position of dynamic device control by-passing valve is moved, to block exhaust pipe branch pipe pipeline I, at this moment, the vehicle exhaust of discharge
It fully enters in heat exchanger, and the coolant liquid in engine partial circulating enters heat exchanger by coolant line, car tail
The thermal energy of gas first passes through heat convection and is transmitted on the inside of fin and flat tube, then is transmitted on the outside of flat tube by heat transfer, then pass through
Heat convection is transmitted in the coolant liquid in heat exchanger, is heated to coolant liquid, realizes the recycling of the thermal energy of vehicle exhaust.
And the tail gas after over-heat-exchanger is then exhausted from.In this way, the coolant liquid for recycling and heating by heat energy of tail gas of automobile flows back to and starts
In machine water jacket, the coolant liquid partial circulating of engine is completed, warming-up is carried out to engine, in this way, substantially reducing available engine
Warm-up period, promoted engine cold-start time interval in the thermal efficiency.Because engine coolant partial circulating and warm wind are cold
But liquid circuit is at parallel relationship, therefore, when there is passenger compartment to have demand for heat, when starting engine and entering heat recovery mode,
The thermal energy recycled from vehicle exhaust not only can carry out warming-up to engine, can also be by warm wind coolant circuit to passenger
Cabin is heated, and promotes passenger compartment driver and passenger human body comfort rapidly.Specifically: coolant liquid is from engine after heat absorption heating
It is flowed out in water jacket, enters heater cores by warm wind pipeline I, heat release is to the air in HVAC air duct, then through warm wind pipeline II
In return engine water jacket, warm wind coolant circuit circulation is completed；Air in HVAC air duct first passes through the air of heater cores
Side heat absorption heating, is then blown into passenger compartment by air blower.And detected when heat exchanger outlet cooling-water temperature transmitter
Coolant temperature is higher than recuperation of heat and terminates set temperature TSETWhen (generally at 80 DEG C or so), the recuperation of heat stage terminates.At this point, passing
Sensor is changed to control unit feedback signal, control unit by the valve block position that bypass valve actuator controls by-passing valve,
Valve block blocks exhaust pipe branch pipe pipeline II, and exhaust pipe branch pipe pipeline I is open-minded, is discharged, is finally arranged to airspace convenient for tail gas.This
When, the coolant liquid flowed out from engine water jacket returns in engine water jacket through over-heat-exchanger, and it is small to complete conventional chilling liquid
Circulation.Warm wind coolant circuit is regular circulation at this time, and specifically: coolant liquid is flowed out from engine water jacket, into warm wind
It after core, returns again in engine water jacket, completes warm wind coolant circuit circulation；Air in HVAC air duct first passes through warm wind core
The air side of body, which is absorbed heat, to heat up, and is then blown into passenger compartment by air blower.Residual heat of tail gas of automobile recycling and reusing system of the invention
System, structure is simple, in cold-starting automobile can from vehicle exhaust recovery section heat, be reused in heating automobile engine
Coolant liquid in cooling system, it is fast and reliable that warming-up is carried out to engine, in the thermal efficiency and cylinder when improving engine cold-start
Burning adequacy reduces a large amount of pernicious gases for insufficient generation of burning when cold start-up, protects environment, while can also make the winter
The heating of season main cabin can be rapidly heated, and improve interior driver and passenger's human thermal comfort.
Detailed description of the invention
Brief description is made to content expressed by each attached drawing of this specification and the label in figure below:
Fig. 1 is the schematic illustration of residual heat of tail gas of automobile recycling and reusing system of the present invention；
Fig. 2 is the external structure signal of the heat exchanger of residual heat of tail gas of automobile recycling and reusing system of the present invention
Figure；
Fig. 3 is the section view knot in the face A-A of the heat exchanger of residual heat of tail gas of automobile recycling and reusing system of the present invention
Structure schematic diagram；
Fig. 4 is the section view knot in the face B-B of the heat exchanger of residual heat of tail gas of automobile recycling and reusing system of the present invention
Structure schematic diagram；
Attached drawing acceptance of the bid note is respectively as follows: 1, engine body；2, exhaust manifold；3, exhaust pipe；4, exhaust pipe branch pipe pipeline I；
5, exhaust pipe branch pipe pipeline II；6, heat exchanger；7, valve actuator is bypassed；8, by-passing valve；9, coolant line；10, spiral is changed
Pipe line portion；11, heat exchanger outlet cooling-water temperature transmitter；12, control unit；13, heater cores；14, warm wind pipeline
Ⅰ；15, warm wind pipeline II；16, air blower；21, coolant line A sections；22, coolant line B sections；24, exhaust pipe leading portion；25,
Exhaust pipe back segment；31, outer shell；32, inner shell；33, air inlet tapered end；34, outlet tapered end；35, front end end plate；36, after
Hold end plate；37, flat tube；38, fin；39, inlet tube；40, outlet tube；41, water route cavity；42, shaft；43, valve block.
Specific embodiment
Below against attached drawing, by the description of the embodiment, to for example related each structure of a specific embodiment of the invention
The works such as the shape of part, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle are further
Detailed description:
As shown in attached drawing 1- attached drawing 4, the present invention is a kind of residual heat of tail gas of automobile recycling and reusing system, the car tail
Gas waste heat recycling and reusing system includes engine body 1, exhaust manifold 2, exhaust pipe 3, and the exhaust pipe 3 includes exhaust pipe
Heat exchanger 6 is arranged on exhaust pipe branch pipe pipeline II 5, is arranged on exhaust pipe 3 for branch pipe pipeline I 4 and exhaust pipe branch pipe pipeline II 5
Valve actuator 7 and by-passing valve 8 are bypassed, bypass valve actuator 7 is configured to the knot of the valve block position movement of control by-passing valve 8
Structure, 9 one end of coolant line are connected to the cooling water channel water outlet of engine body 1, and coolant line 9 is through over-heat-exchanger 6
It is connected to again with the cooling water channel water return outlet of engine body 1 afterwards, heat exchanger 6 includes outer shell 31, inner shell 32, and heat is handed over
Air inlet tapered end 33 is arranged in 6 one end of parallel operation, and gas coning end 34, outer shell 31 and inner shell 32 is provided in 6 other end of heat exchanger
Between close to air inlet tapered end 33 be arranged front end end plate 35, between outer shell 31 and inner shell 32 close to outlet tapered end 34 be arranged
Rear end end plate 36 inserts multiple flat tubes 37, inserts fin respectively in each flat tube 37 between front end end plate 35 and rear end end plate 36
38, it is welded to connect between each flat tube 37 and the fin 38 being inserted into the flat tube 37, gap portion is set in each fin 38, outside
Inlet tube 39 is set on layer shell 31 and outlet tube 40, inlet tube 39 are connected to the cooling line of engine body 1, outlet tube 40
It is connected to the cooling line of engine body 1,9 position of the coolant line setting heat exchanger outlet through over-heat-exchanger 6 is cold
But liquid temperature sensor 11, the heat exchanger outlet cooling-water temperature transmitter 11 are connect with control unit 12, by-passing valve
Actuator 7 is connect with control unit 12.Above structure can enter exhaust pipe after enmgine exhaust is discharged in vehicle exhaust
3.If engine does not need the fast and reliable progress warming-up to engine, control unit can send a signal to by-passing valve actuating
Device, by-passing valve actuator drives the valve block movement of by-passing valve, to close exhaust pipe branch pipe pipeline II 5, exhaust pipe branch pipe at this time
Pipeline I 4 (exhaust pipe by-pass line) is in opening state, and tail gas is discharged from exhaust pipe branch pipe pipeline I 4.And when engine needs
When the fast and reliable progress warming-up to engine, control unit can send a signal to bypass valve actuator, and by-passing valve actuator drives
The valve block of by-passing valve acts, to close exhaust pipe branch pipe pipeline I 4, exhaust pipe branch pipe pipeline II 5 is in opening state at this time.
Tail gas enters heat exchanger 6 from air inlet tapered end.Because the setting of flat tube moves towards identical with tail gas, and the fin in each flat tube
Interior setting gap portion when the vehicle exhaust of high temperature is discharged, can pass through from gap portion, lead between flat tube and fin in vehicle exhaust
During crossing, the heat transfer in the vehicle exhaust of high temperature is to fin.And inlet tube 39 and out liquid are set in outer shell 31
Pipe 40, the cavity of inlet tube 39 and outlet tube 40 respectively between flat tube are connected to, in this way, pipeline and cooling liquid stream that tail gas flows through
The pipeline crossed realizes reliable separation isolation, and can reliably realize heat transfer to the coolant liquid through over-heat-exchanger.It needs
The coolant liquid of heat absorption enters heat exchanger from inlet tube, and the coolant liquid for absorbing heat is flowed out from outlet tube, returns to engine
It is interior, it is used for engine warm-up.It is discharged again from outlet tapered end by the vehicle exhaust in the gap portion of the fin in flat tube.In this way, real
The fast exchange of existing heat, high-temperature tail gas effectively realize recycling.
Residual heat of tail gas of automobile recycling and reusing system of the present invention, to realize waste heat recycling and reusing, from engine
Set about in terms of cooling system and exhaust system, consider from temperature angle, the waste heat quality of engine-cooling system compares exhaust system
It is much lower, so residual heat of tail gas of automobile recovery system becomes research emphasis.It is arranged by above structure, when engine body (hair
Motivation) cold start-up when, control unit detects coolant temperature by heat exchanger outlet cooling-water temperature transmitter, when detecting
Actual temperature lower than recuperation of heat terminate set temperature TSET(generally at 80 DEG C or so), at this point, control unit is caused by by-passing valve
The valve block position of dynamic device control by-passing valve is moved, to block exhaust pipe branch pipe pipeline I 4, at this moment, the vehicle exhaust of discharge
It fully enters in heat exchanger, and the coolant liquid in engine partial circulating enters heat exchanger, car tail by coolant line 9
The heat of gas absorbs waste heat by the fin in heat exchanger, and fin heats the coolant liquid through over-heat-exchanger, realizes
The recycling of the thermal energy of vehicle exhaust.And the tail gas after over-heat-exchanger is then exhausted from.In this way, by heat energy of tail gas of automobile recycling and
The coolant liquid of heating flows back in engine water jacket, completes the coolant liquid partial circulating of engine, carries out warming-up to engine, in this way,
The warm-up period of available engine is substantially reduced, the thermal efficiency in engine cold-start time interval is promoted.Because of engine
Coolant liquid partial circulating and warm wind coolant circuit are at parallel relationship, therefore, when there is passenger compartment to have demand for heat, start engine
And when entering heat recovery mode, the thermal energy recycled from vehicle exhaust not only can carry out warming-up to engine, can also pass through
Warm wind coolant circuit heats passenger compartment, promotes passenger compartment driver and passenger human body comfort rapidly.Specifically: heat absorption
Coolant liquid is flowed out from engine water jacket after heating, enters heater cores by warm wind pipeline I, heat release is to the sky in HVAC air duct
Gas, then through in II return engine water jacket of warm wind pipeline, completing warm wind coolant circuit circulation；Air in HVAC air duct is first
It absorbs heat and heats up by the air side of heater cores, be then blown into passenger compartment by air blower.And work as heat exchanger outlet coolant liquid
The coolant temperature that temperature sensor detects is higher than recuperation of heat and terminates set temperature TSETWhen (generally at 80 DEG C or so), heat is returned
The receipts stage terminates.At this point, sensor, to control unit feedback signal, control unit controls by-passing valve by bypass valve actuator
Valve block position changes, and valve block blocks exhaust pipe branch pipe pipeline II 5, and exhaust pipe branch pipe pipeline I 4 is open-minded, is discharged convenient for tail gas,
Finally arrange to airspace.At this point, the coolant liquid flowed out from engine water jacket returns engine water jacket through over-heat-exchanger
In, complete conventional chilling liquid partial circulating.Warm wind coolant circuit is regular circulation at this time, specifically: coolant liquid is from engine
It flows out in water jacket, into after heater cores, returns again in engine water jacket, complete warm wind coolant circuit circulation；HVAC air duct
In air first pass through the air side heat absorption heatings of heater cores, be then blown into passenger compartment by air blower.Automobile of the invention
Waste heat from tail gas recycling and reusing system, structure is simple, in cold-starting automobile can from vehicle exhaust recovery section heat, then
The coolant liquid being used in heating car engine cooling system, it is fast and reliable that warming-up is carried out to engine, it is cold to improve engine
The thermal efficiency and in-cylinder combustion adequacy when starting reduce a large amount of pernicious gases for insufficient generation of burning when cold start-up, protection
Environment, while can also make the heating of winter main cabin that can be rapidly heated, improve interior driver and passenger's human thermal comfort.
The cavity portion of annular, front end end plate 35 and rear end end plate are formed between the outer shell 31 and inner shell 32
36 be ring structure, and multiple front end apertures by gap arrangement, rear end were arranged along front end end plate 35 1 weeks on front end end plate 35
Along the multiple rear end apertures by gap arrangement of setting in rear end end plate 36 1 weeks on end plate 36, each 37 one end of flat tube fixation is inserted into
In a front end aperture on front end end plate 35, each 37 other end of flat tube is fixed be inserted on rear end end plate 36 one it is corresponding
In the aperture of rear end.Above structure, each flat tube realized by front end end plate and rear end end plate and fixed, and each flat tube one end with into
The connection of gas coning end, each flat tube other end are connected to outlet tapered end, and fin is respectively set in each flat tube.In this way, tail gas enters
It after air inlet tapered end, can be flowed through out of each flat tube with the gap portion of fin, realize the thermal energy of high-temperature tail gas to fin and flat tube
Transmitting.And coolant liquid enters cavity portion from inlet tube, coolant liquid is contacted with flat tube at this time, and coolant liquid realizes fast endothermic, heat absorption
Coolant liquid afterwards is transferred out from outlet tube, is then returned in engine, the warming-up for engine.Whole process high efficient and reliable.
The gap between different flat tubes 37 between the outer shell 31 and inner shell 32 is water route cavity 41, institute
The inlet tube 39 and outlet tube 40 stated are connected to water route cavity 41 respectively；When vehicle exhaust is through over-heat-exchanger 6, vehicle exhaust is set
It is set to the structure that can pass through from the gap portion of different flat tubes 37.Above structure, coolant liquid is by water route cavity, and tail gas is by seam
Gap portion, in this way, tail gas pipeline and coolant line realize reliable separation isolation, while coolant liquid again can be flat with absorption heat
The heat absorption of pipe reliable contacts realizes that heat quickly transmits, and the heat for being transmitted to coolant liquid increases coolant temperature, then flows back into
Warming-up in engine.
The by-passing valve 8 includes shaft 42, valve block 43, and valve block 43 is fixedly mounted in the shaft 42, and shaft 42 is pacified
In inner shell 32, one end that shaft 42 extends to outside outer shell 31 is connect with bypass valve actuator 7.Above-mentioned knot
Structure, the rotation of valve block can be realized valve block and control the on-off of pipeline.When valve block is opened, tail gas can be from exhaust pipe branch pipe pipeline
I 4 (exhaust pipe by-pass lines) discharge, when valve block is closed, tail gas can fully enter exhaust pipe branch pipe pipeline II 5, hand in heat
Heat exchange is realized in parallel operation, is used for engine warm-up.
It is set as being stored with the structure that recuperation of heat terminates set temperature numerical value, engine body in the control unit 12
After 1 starting, when the heat exchanger outlet coolant liquid actual temperature number that heat exchanger outlet cooling-water temperature transmitter 11 detects
When value terminates set temperature numerical value lower than recuperation of heat, control unit 12 is configured to the control bypass control bypass of valve actuator 7
The mobile structure for blocking exhaust pipe branch pipe pipeline I 4 of the valve block of valve 8.Described obtain is set as being stored with recuperation of heat in control unit 12
The structure of set temperature numerical value is terminated, after engine body 1 starts, when heat exchanger outlet cooling-water temperature transmitter 11 detects
When the heat exchanger outlet coolant liquid actual temperature numerical value arrived is higher than recuperation of heat termination set temperature numerical value, control unit 12 is arranged
For the mobile structure for blocking exhaust pipe branch pipe pipeline II 5 of valve block that bypass valve actuator 7 controls by-passing valve 8 can be controlled.It is above-mentioned
Structure realizes the real-time prison of heat exchanger outlet position coolant temperature by heat exchanger outlet cooling-water temperature transmitter 11
Control, and Real-time Feedback temperature value is to control unit, and control unit with bypass valve actuator 7 and connect, in this way, in heat exchange
Device exports and establishes association between cooling-water temperature transmitter 11 and bypass valve actuator 7, after the engine started, can be reliably real
Existing waste heat recycling and reusing, to engine heat engine.
The residual heat of tail gas of automobile recycling and reusing system further includes heater cores 13, and 13 one end of heater cores passes through warm
Air pipe line I 14 is connected to the cooling water channel water outlet of engine body 1,13 other end of heater cores by warm wind pipeline II 15 with
The cooling water channel water return outlet of engine body 1 is connected to, and air blower 16 is arranged in 13 side of heater cores.Because engine coolant is small
Circulation and warm wind coolant circuit are at parallel relationship, therefore, when there is passenger compartment to have demand for heat, start engine and enter heat
When take-back model, the thermal energy recycled from vehicle exhaust not only can carry out warming-up to engine, can also under air blower effect
To heat by warm wind coolant circuit to passenger compartment, passenger compartment driver and passenger human body comfort is promoted rapidly.It is specific next
Say: the coolant liquid after heat absorption heating is flowed out from engine water jacket, enters heater cores by warm wind pipeline I, heat release is to HVAC
Air in air duct, then through in II return engine water jacket of warm wind pipeline, completing warm wind coolant circuit circulation；HVAC air duct
In air first pass through the air side heat absorption heatings of heater cores, be then blown into passenger compartment by air blower, improve comfort.
The coolant line 9 include coolant line A section 21, coolant line B section 22, coolant line 9 it is cold
But 21 one end of liquid pipeline A section is connected to the cooling water channel water outlet of engine body 1,21 other end of coolant line A section and heat
The inlet tube 39 of exchanger 6 is connected to, and the outlet tube 40 of heat exchanger 6 is connected to 22 one end of coolant line B section, coolant line
22 other end of B section is connected to the cooling water channel water return outlet of engine body 1.The exhaust pipe 3 includes exhaust pipe leading portion 24, row
Before tracheae branch pipe pipeline I 4 and exhaust pipe branch pipe pipeline II 5, exhaust pipe back segment 25, I 4 one end of exhaust pipe branch pipe pipeline and exhaust pipe
Section 24 is connected to, and I 4 other end of exhaust pipe branch pipe pipeline is connected to exhaust pipe back segment 25, II 5 one end of exhaust pipe branch pipe pipeline and exhaust
Pipe leading portion 24 is connected to, and II 5 other end of exhaust pipe branch pipe pipeline is connected to exhaust pipe back segment 25.
Residual heat of tail gas of automobile recycling and reusing system of the present invention works as car tail to realize waste heat recycling and reusing
After enmgine exhaust is discharged in gas, exhaust pipe 3 can be entered.If engine does not need fast and reliable to engine progress warming-up
When, control unit can send a signal to bypass valve actuator, and by-passing valve actuator drives the valve block movement of by-passing valve, to close
Exhaust pipe branch pipe pipeline II 5, exhaust pipe branch pipe pipeline I 4 (exhaust pipe by-pass line) is in opening state at this time, and tail gas is from exhaust
Pipe branch pipe pipeline I 4 is discharged.And when engine needs the fast and reliable progress warming-up to engine, control unit can issue signal
Bypass valve actuator is given, by-passing valve actuator drives the valve block movement of by-passing valve, to close exhaust pipe branch pipe pipeline I 4, at this time
Exhaust pipe branch pipe pipeline II 5 is in opening state.Tail gas enters heat exchanger 6 from air inlet tapered end.Because of setting and the tail of flat tube
It makes leave with rage to identical, and gap portion is set in the fin in each flat tube, it, can be logical from gap portion when the vehicle exhaust discharge of high temperature
It crosses, during vehicle exhaust passes through between flat tube and fin, the heat transfer in the vehicle exhaust of high temperature is to fin.And
Inlet tube 39 and outlet tube 40 are set in outer shell 31, and the cavity between flat tube connects respectively for inlet tube 39 and outlet tube 40
It is logical, in this way, the pipeline that pipeline and coolant liquid that tail gas flows through flow through realizes reliable separation isolation, and it can reliably realize heat
It is transmitted to the coolant liquid through over-heat-exchanger.The coolant liquid for needing to absorb heat enters heat exchanger from inlet tube, and absorbs heat
Coolant liquid from outlet tube flow out, return in engine, be used for engine warm-up.And by the gap portion of the fin in flat tube
Tail gas is discharged from outlet tapered end again.In this way, passing through, heat exchanger is quick, heat is efficiently recycled from vehicle exhaust.And heat exchange
Device structure is simple, at low cost, and work efficiency is high, long service life, and can be used in different type vehicle, and versatility is high.
Above in conjunction with attached drawing, an exemplary description of the invention, it is clear that concrete implementation of the present invention is not by above-mentioned
The limitation of mode, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved by this
The conception and technical scheme of invention directly apply to other occasions, are within the scope of the invention.
Claims (9)
1. a kind of residual heat of tail gas of automobile recycling and reusing system, it is characterised in that: the residual heat of tail gas of automobile recycling and reusing
System includes engine body (1), exhaust manifold (2), exhaust pipe (3), and the exhaust pipe (3) includes exhaust pipe branch pipe pipeline
I (4) and exhaust pipe branch pipe pipeline II (5), are arranged heat exchanger (6) on exhaust pipe branch pipe pipeline II (5), and exhaust pipe is set on (3)
Bypass valve actuator (7) and by-passing valve (8) are set, bypass valve actuator (7) is configured to the valve block position of control by-passing valve (8)
Mobile structure, coolant line (9) one end are connected to the cooling water channel water outlet of engine body (1), coolant line (9)
It is connected to again with the cooling water channel water return outlet of engine body (1) after over-heat-exchanger (6), heat exchanger (6) includes outer shell
Air inlet tapered end (33) are arranged in body (31), inner shell (32), heat exchanger (6) one end, and outlet is arranged in heat exchanger (6) other end
Tapered end (34), close to air inlet tapered end (33) setting front end end plate (35), outer layer between outer shell (31) and inner shell (32)
Close to outlet tapered end (34) setting rear end end plate (36), front end end plate (35) and rear end between shell (31) and inner shell (32)
It is inserted between end plate (36) multiple flat tubes (37), inserts fin (38) respectively in each flat tube (37), each flat tube (37) and slotting
It is welded to connect between fin (38) in the flat tube (37), gap portion, outer shell (31) is set in each fin (38)
Upper setting inlet tube (39) and outlet tube (40), inlet tube (39) are connected to the cooling line of engine body (1), outlet tube
(40) it is connected to the cooling line of engine body (1), coolant line (9) the position setting heat through over-heat-exchanger (6) is handed over
Parallel operation exports cooling-water temperature transmitter (11), the heat exchanger outlet cooling-water temperature transmitter (11) and control unit
(12) it connects, bypass valve actuator (7) is connect with control unit (12).
2. residual heat of tail gas of automobile recycling and reusing system according to claim 1, it is characterised in that: the outer shell
(31) cavity portion of annular is formed between inner shell (32), front end end plate (35) and rear end end plate (36) are ring junction
Structure, along the multiple front end apertures by gap arrangement of setting in front end end plate (35) one weeks, rear end end plate (36) on front end end plate (35)
On along the multiple rear end apertures by gap arrangement of setting in rear end end plate (36) one weeks, each flat tube (37) one end is fixed be inserted into before
Hold in a front end aperture on end plate (35), each flat tube (37) other end is fixed be inserted into rear end end plate (36) upper one it is right
In the rear end aperture answered.
3. residual heat of tail gas of automobile recycling and reusing system according to claim 1 or 2, it is characterised in that: the outer layer
The gap between different flat tubes (37) between shell (31) and inner shell (32) is water route cavity (41), the inlet tube
(39) it is connected to respectively with water route cavity (41) with outlet tube (40)；When vehicle exhaust is through over-heat-exchanger (6), vehicle exhaust setting
For the structure that can pass through from the gap portion of the internal fin (38) of different flat tubes (37).
4. residual heat of tail gas of automobile recycling and reusing system according to claim 1 or 2, it is characterised in that: by-passing valve (8) packet
Shaft (42), valve block (43) are included, valve block (43) are fixedly mounted in the shaft (42), shaft (42) is mounted on inner shell
(32) in, shaft (42) extends to the external one end of outer shell (31) and connect with bypass valve actuator (7).
5. residual heat of tail gas of automobile recycling and reusing system according to claim 1 or 2, it is characterised in that: the control unit
The structure for being set as being stored with recuperation of heat termination set temperature numerical value in part (12) works as heat exchange after engine body (1) starting
The heat exchanger outlet coolant liquid actual temperature numerical value that device outlet cooling-water temperature transmitter (11) detects is whole lower than recuperation of heat
Only when set temperature numerical value, control unit (12) is configured to the valve block of control bypass valve actuator (7) control by-passing valve (8)
The mobile structure for blocking exhaust pipe branch pipe pipeline I (4).
6. residual heat of tail gas of automobile recycling and reusing system according to claim 1 or 2, it is characterised in that: the control unit
The structure for being set as being stored with recuperation of heat termination set temperature numerical value in part (12) works as heat exchange after engine body (1) starting
It is whole that the heat exchanger outlet coolant liquid actual temperature numerical value that device outlet cooling-water temperature transmitter (11) detects is higher than recuperation of heat
Only when set temperature numerical value, control unit (12) is configured to the valve block of control bypass valve actuator (7) control by-passing valve (8)
The mobile structure for blocking exhaust pipe branch pipe pipeline II (5).
7. residual heat of tail gas of automobile recycling and reusing system according to claim 1 or 2, it is characterised in that: more than vehicle exhaust
Recuperation of heat reutilization system further includes heater cores (13), and heater cores (13) one end passes through warm wind pipeline I (14) and engine
The cooling water channel water outlet of ontology (1) is connected to, and heater cores (13) other end passes through warm wind pipeline II (15) and engine body
(1) cooling water channel water return outlet connection, air blower (16) are arranged in heater cores (13) side.
8. residual heat of tail gas of automobile recycling and reusing system according to claim 1 or 2, it is characterised in that: coolant line
It (9) include A sections of coolant line (21), B sections of coolant line (22), A sections (21) one of the coolant line of coolant line (9)
End is connected to the cooling water channel water outlet of engine body (1), A sections of (21) other ends of coolant line and heat exchanger (6)
Inlet tube (39) connection, the outlet tube (40) of heat exchanger (6) are connected to B sections of coolant line (22) one end, coolant line B
Section (22) other end is connected to the cooling water channel water return outlet of engine body (1).
9. residual heat of tail gas of automobile recycling and reusing system according to claim 1 or 2, it is characterised in that: exhaust pipe (3) packet
Exhaust pipe leading portion (24), exhaust pipe branch pipe pipeline I (4) and exhaust pipe branch pipe pipeline II (5), exhaust pipe back segment (25) are included, is vented
I (4) one end of pipe branch pipe pipeline is connected to exhaust pipe leading portion (24), I (4) other end of exhaust pipe branch pipe pipeline and exhaust pipe back segment
(25) it is connected to, II (5) one end of exhaust pipe branch pipe pipeline is connected to exhaust pipe leading portion (24), and II (5) of exhaust pipe branch pipe pipeline are another
End is connected to exhaust pipe back segment (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910406698.XA CN110030066A (en) | 2019-05-16 | 2019-05-16 | A kind of residual heat of tail gas of automobile recycling and reusing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406698.XA CN110030066A (en) | 2019-05-16 | 2019-05-16 | A kind of residual heat of tail gas of automobile recycling and reusing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110578575A (en) * | 2019-08-22 | 2019-12-17 | 南安凌卓文化创意有限公司 | Environmental protection machinery tail gas recovery device |
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