CN109630246A - A kind of automotive residual heat recycling and reusing system - Google Patents
A kind of automotive residual heat recycling and reusing system Download PDFInfo
- Publication number
- CN109630246A CN109630246A CN201910086024.6A CN201910086024A CN109630246A CN 109630246 A CN109630246 A CN 109630246A CN 201910086024 A CN201910086024 A CN 201910086024A CN 109630246 A CN109630246 A CN 109630246A
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- China
- Prior art keywords
- heat
- valve
- exhaust pipe
- coolant line
- heat exchanger
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting from exhaust energy the devices using heat
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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
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- 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
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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
Abstract
The present invention provides a kind of automotive residual heat recycling and reusing system applied to technical field of automobile engine, the exhaust pipe (3) of the automotive residual heat recycling and reusing system includes exhaust pipe branch pipe pipeline I (4) and exhaust pipe branch pipe pipeline II (5), heat exchanger (6) are set on exhaust pipe branch pipe pipeline II (5), setting bypass valve actuator (7) and by-passing valve (8) on exhaust pipe (3), coolant line (9) is located at the setting of the position in heat exchanger (6) spiral heat exchange tube road portion (10), heat exchanger outlet cooling-water temperature transmitter (11) are arranged in coolant line (9) position through over-heat-exchanger (6), automotive residual heat recycling and reusing system of the invention, structure is simple, in cold-starting automobile can from vehicle exhaust recovery section heat, it is reused in heating car engine Coolant liquid in machine cooling system, it is fast and reliable to engine carry out warming-up, improve engine cold-start when the thermal efficiency and in-cylinder combustion adequacy.
Description
Technical field
The invention belongs to technical field of automobile engine, are to be related to a kind of automotive residual heat recycling and reusing more specifically
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
The ontology thermal 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: it is simple to provide a kind of structure, it can be from automobile in cold-starting automobile
Recovery section heat in tail gas, the coolant liquid being reused in heating car engine cooling system, thus fast and reliable to hair
Motivation carry out warming-up, improve engine cold-start when the thermal efficiency and in-cylinder combustion adequacy, to reduce burning when cold start-up
A large amount of pernicious gases of insufficient generation protect environment, while can also make the heating of winter main cabin that can be rapidly heated, and improve
The automotive residual heat recycling and reusing system of interior driver and passenger's human thermal comfort.
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 automotive residual heat recycling and reusing system, and the automotive residual heat recycling and reusing system includes hair
Motivation ontology, exhaust manifold, exhaust pipe, the exhaust pipe include exhaust pipe branch pipe pipeline I and exhaust pipe branch pipe pipeline II, row
Heat exchanger is set on tracheae branch pipe pipeline II, and setting bypass valve actuator and by-passing valve on exhaust pipe, bypass valve actuator are set
The structure that the valve block position of by-passing valve is moved can be controlled by being set to, and the cooling water channel of coolant line one end and engine body goes out
Mouth of a river connection, cooling water channel water return outlet of the coolant line after over-heat-exchanger again with engine body are connected to, and described is cold
But liquid pipeline is located at the setting spiral heat exchange tube road portion of the position in heat exchanger, and the coolant line position through over-heat-exchanger is set
Heat exchanger outlet cooling-water temperature transmitter is set, the heat exchanger outlet cooling-water temperature transmitter and control unit connect
It connects, bypass valve actuator is connect with control unit.
It is set as being stored with the structure that recuperation of heat terminates set temperature numerical value, the engine in the control unit
After ontology starting, when the heat exchanger outlet coolant liquid actual temperature number that heat exchanger outlet cooling-water temperature transmitter detects
When value terminates set temperature numerical value lower than recuperation of heat, control unit is configured to control bypass valve actuator control by-passing valve
The mobile structure for blocking exhaust pipe branch pipe pipeline I of valve block；After engine body starting, when heat exchanger outlet coolant temperature passes
When the heat exchanger outlet coolant liquid actual temperature numerical value that sensor detects is higher than recuperation of heat termination set temperature numerical value, control unit
Part is configured to the mobile structure for blocking exhaust pipe branch pipe pipeline II of valve block of control bypass valve actuator control by-passing valve.
The automotive residual heat recycling and reusing system further includes heater cores, and heater cores one end passes through warm wind pipeline I
It is connected to the cooling water channel water outlet of engine body, the heater cores other end is cold by warm wind pipeline II and engine body
But water route water return outlet is connected to, and air blower is arranged in heater cores side.
The automotive residual heat recycling and reusing system further includes fluid reservoir, feed liquor shut-off valve, goes out liquid shut-off valve, fluid reservoir
Be arranged on coolant pipe road, fluid reservoir includes fluid reservoir outer layer and fluid reservoir internal layer, fluid reservoir outer layer and fluid reservoir internal layer it
Between cavity portion is set, cavity portion is set as vacuum state, and the feed liquor shut-off valve is located at fluid reservoir side coolant pipe road,
Liquid shut-off valve is located at fluid reservoir other side coolant pipe road out, and feed liquor shut-off valve and out liquid shut-off valve connect with control unit respectively
It connects.
After the engine body starting, control unit is configured to control feed liquor shut-off valve and liquid shut-off valve is equal out
Structure in the open state；When the coolant liquid partial circulating of the engine body completely closes, control unit is arranged to
It enough controls feed liquor shut-off valve and liquid shut-off valve is in the structure of closed state out.
Low blackness ε material is arranged in the fluid reservoir outer layer inner surface of the fluid reservoir of the automotive residual heat recycling and reusing system
Low blackness ε material coating is arranged in coating, fluid reservoir inner layer outer surface.
The automotive residual heat recycling and reusing system further includes accumulation of heat heat exchanger, feed liquor shut-off valve, goes out liquid shut-off valve, is stored
Hot heat exchanger is arranged on coolant pipe road, and accumulation of heat heat exchanger includes accumulation of heat heat exchanger outer layer and accumulation of heat heat exchanger internal layer, cooling
Liquid pipeline is configured to the structure by accumulation of heat heat exchanger internal layer, between accumulation of heat heat exchanger outer layer and accumulation of heat heat exchanger internal layer
Phase change heat storage material block is filled in cavity portion, feed liquor shut-off valve is located at accumulation of heat heat exchanger side coolant pipe road, and liquid ends out
Valve is located at accumulation of heat heat exchanger other side coolant pipe road, feed liquor shut-off valve and liquid shut-off valve is connect with control unit respectively out.
The coolant line includes A sections of coolant line, B sections of coolant line, and C sections of coolant line, spiral are changed
The A sections of one end of coolant line in pipe line portion, coolant line are connected to the cooling water channel water outlet of engine body, coolant liquid
A sections of other ends of pipeline are connected to spiral heat exchange tube road portion one end, spiral heat exchange tube road portion's other end and coolant line B sections of one end
Connection, B sections of other ends of coolant line are connected to fluid reservoir entrance, the fluid reservoir outlet and coolant line C sections of one end
Connection, C sections of other ends of coolant line are connected to the cooling water channel water return outlet of engine body.
Phase change heat storage material block in the cavity portion of the fluid reservoir is set as selecting phase transition temperature whole lower than recuperation of heat
Only structure made of the phase change heat storage material of set temperature numerical value.
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
Automotive residual heat recycling and reusing system of the present invention, to realize waste heat recycling and reusing, from engine cool
Set about in terms of system and exhaust system, consider from temperature angle, the waste heat quality of engine-cooling system is lower than exhaust system very
It is more, so residual heat of tail gas of automobile recovery system becomes research emphasis.It is arranged by above structure, when engine body (engine)
When cold start-up, control unit detects coolant temperature by heat exchanger outlet cooling-water temperature transmitter, when the reality detected
Border temperature terminates set temperature T lower than recuperation of heatSET(generally at 80 DEG C or so), at this point, control unit passes through bypass valve actuator
The valve block position of control by-passing valve is moved, to block exhaust pipe branch pipe pipeline I, when, the vehicle exhaust of discharge all into
Enter in heat exchanger, and the coolant liquid in engine partial circulating enters the spiral heat exchange tube road of heat exchanger by coolant line
The heat in portion, vehicle exhaust absorbs waste heat by spiral heat exchange tube road portion, and spiral heat exchange tube road portion is to cold in coolant line
But liquid is heated, and 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
The coolant liquid that heat energy of tail gas of automobile is recycled and heated flows back in engine water jacket, the coolant liquid partial circulating of engine is completed, to hair
Motivation carries out warming-up, in this way, substantially reducing the warm-up period of available engine, is promoted in engine cold-start time interval
The thermal efficiency.Because engine coolant partial circulating and warm wind coolant circuit be at parallel relationship, there is passenger compartment to have heating
When demand, start engine and enter heat recovery mode when, the thermal energy recycled from vehicle exhaust not only can to engine into
Row warming-up, can also heat passenger compartment by warm wind coolant circuit, promote passenger compartment driver and passenger human body rapidly and relax
Adaptive.Specifically: coolant liquid is flowed out from engine water jacket after heat absorption heating, is entered heater cores by warm wind pipeline I, is put
Heat is to the air in HVAC air duct, then through in II return engine water jacket of warm wind pipeline, completing warm wind coolant circuit circulation；
Air in HVAC air duct first passes through the air side heat absorption heating of heater cores, is then blown into passenger compartment by air blower.And work as
The coolant temperature that heat exchanger outlet cooling-water temperature transmitter detects is higher than recuperation of heat and terminates set temperature TSETIt is (general
At 80 DEG C or so) when, the recuperation of heat stage terminates.At this point, sensor, to control unit feedback signal, control unit passes through by-passing valve
The valve block position of actuator control by-passing valve changes, and valve block blocks exhaust pipe branch pipe pipeline II, and comb branch pipe pipeline I is opened
It is logical, it is discharged, is finally arranged to airspace convenient for tail gas.At this point, the coolant liquid flowed out from engine water jacket is through over-heat-exchanger,
It returns in engine water jacket, completes conventional chilling liquid partial circulating.Warm wind coolant circuit is also regular circulation at this time, specific next
Say: coolant liquid is flowed out from engine water jacket, into after heater cores, is returned again in engine water jacket, and warm wind coolant liquid is completed
Circuit cycle；Air in HVAC air duct first passes through the air side heat absorption heating of heater cores, is then blown into and multiplies by air blower
Main cabin.Automotive residual heat recycling and reusing system of the present invention, structure is simple, can be from vehicle exhaust in cold-starting automobile
Middle recovery section heat, the coolant liquid being reused in heating car engine cooling system are fast and reliable to carry out to engine
Warming-up, improve engine cold-start when the thermal efficiency and in-cylinder combustion adequacy, insufficient production of burning when to reducing cold start-up
Raw a large amount of pernicious gases protect environment, while can also effectively improve driver and passenger's human thermal comfort in passenger compartment.
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 structural schematic diagram of the embodiment 1 of automotive residual heat recycling and reusing system of the present invention；
Fig. 2 is the structural schematic diagram of the embodiment 2 of automotive residual heat recycling and reusing system of the present invention；
Fig. 3 is the structural schematic diagram of the embodiment 3 of automotive residual heat recycling and reusing system of the present invention；
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；17, fluid reservoir；18, feed liquor shut-off valve；19, go out liquid shut-off valve；20, phase-transition heat-storage material
Expect block；21, coolant line A sections；22, coolant line B sections；23, coolant line C sections；24, exhaust pipe leading portion；25, it is vented
Pipe back segment；26, accumulation of heat heat exchanger；27, passenger compartment.
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 Fig. 1, the present invention is a kind of automotive residual heat recycling and reusing system, and the automotive residual heat recycling is sharp again
It include engine body 1, exhaust manifold 2, exhaust pipe 3 with system, the exhaust pipe 3 includes exhaust pipe branch pipe pipeline I 4 and row
Heat exchanger 6 is arranged on exhaust pipe branch pipe pipeline II 5 for tracheae branch pipe pipeline II 5, setting bypass 7 He of valve actuator on exhaust pipe 3
By-passing valve 8, bypass valve actuator 7 are configured to the structure of the valve block position movement of control by-passing valve 8, coolant line 9 one
End be connected to the cooling water channel water outlet of engine body 1, coolant line 9 after over-heat-exchanger 6 again with engine body 1
Cooling water channel water return outlet connection, the coolant line 9 be located at the position in heat exchanger 6 be arranged spiral heat exchange tube road portion
10, heat exchanger outlet cooling-water temperature transmitter 11, the heat is arranged in 9 position of coolant line through over-heat-exchanger 6
Exchanger outlet cooling-water temperature transmitter 11 is connect with control unit 12, and bypass valve actuator 7 is connect with control unit 12.On
Structure is stated, to realize waste heat recycling and reusing, sets about in terms of engine-cooling system and exhaust system, is examined from temperature angle
Consider, the waste heat quality of engine-cooling system is more much lower than exhaust system, so residual heat of tail gas of automobile recovery system becomes research
Emphasis.It is arranged by above structure, when engine body (engine) cold start-up, control unit is cold by heat exchanger outlet
But liquid temperature sensor detects coolant temperature, when the actual temperature detected terminates set temperature T lower than recuperation of heatSETIt is (general
At 80 DEG C or so), at this point, control unit is moved by the valve block position that bypass valve actuator controls by-passing valve, to seal
Stifled exhaust pipe branch pipe pipeline I 4, at this moment, the vehicle exhaust of discharge fully enters in heat exchanger, and cold in engine partial circulating
But liquid enters the spiral heat exchange tube road portion 10 of heat exchanger by coolant line 9, and the heat of vehicle exhaust is exchanged heat by spiral
Duct portion 10 absorbs waste heat, and the coolant liquid in coolant line is heated in spiral heat exchange tube road portion 10, realizes vehicle exhaust
Thermal energy recycling.And the tail gas after over-heat-exchanger is then exhausted from.In this way, recycling and heating cold by heat energy of tail gas of automobile
But liquid stream is returned in engine water jacket, completes the coolant liquid partial circulating of engine, warming-up is carried out to engine, in this way, greatly shortening
The warm-up period of available engine promotes the thermal efficiency in engine cold-start time interval.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 be cooling by warm wind
Passenger compartment is heated in liquid circuit, promotes passenger compartment driver and passenger human body comfort rapidly.Specifically: cold after heat absorption heating
But liquid is flowed out from engine water jacket, enters heater cores by warm wind pipeline I, heat release is to the air in HVAC air duct, then
Through in II return engine water jacket of warm wind pipeline, completing warm wind coolant circuit circulation；Air in HVAC air duct first passes through warm
The air side of wind core, which is absorbed heat, to heat up, and is then blown into passenger compartment by air blower.And when heat exchanger outlet coolant temperature passes
The coolant temperature that sensor detects is higher than recuperation of heat and terminates set temperature TSETWhen (generally at 80 DEG C or so), the recuperation of heat stage
Terminate.At this point, sensor, to control unit feedback signal, control unit controls the valve block position of by-passing valve by bypass valve actuator
It sets and changes, 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, final to arrange
To airspace.At this point, the coolant liquid flowed out from engine water jacket returns in engine water jacket through over-heat-exchanger, it is complete
At conventional chilling liquid partial circulating.Warm wind coolant circuit is also regular circulation at this time, specifically: coolant liquid is from engine water jacket
Middle outflow returns again in engine water jacket into after heater cores, completes warm wind coolant circuit circulation；In HVAC air duct
Air first passes through the air side heat absorption heating of heater cores, is then blown into passenger compartment by air blower.Automobile of the present invention
Waste heat recycling and reusing system, structure is simple, in cold-starting automobile can from vehicle exhaust recovery section heat, recycle
Coolant liquid in heating car engine cooling system, it is fast and reliable that warming-up is carried out to engine, improve engine cold-start
When the thermal efficiency and in-cylinder combustion adequacy, a large amount of pernicious gases for insufficient generation of burning when to reducing 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.
It is set as being stored with the structure that recuperation of heat terminates set temperature numerical value in the control unit 12, described starts
After machine ontology 1 starts, when the heat exchanger outlet coolant liquid that heat exchanger outlet cooling-water temperature transmitter 11 detects is practical
When temperature value terminates set temperature numerical value lower than recuperation of heat, control unit 12 is configured to control bypass valve actuator 7 and controls
The mobile structure for blocking exhaust pipe branch pipe pipeline I 4 of the valve block of by-passing valve 8 processed；After engine body 1 starts, when heat exchanger goes out
The heat exchanger outlet coolant liquid actual temperature numerical value that mouth cooling-water temperature transmitter 11 detects is higher than recuperation of heat and terminates setting
When temperature value, control unit 12 is configured to the mobile closure exhaust of valve block that control bypass valve actuator 7 controls by-passing valve 8
The structure of pipe branch pipe pipeline II 5.Above structure realizes that heat exchanger goes out by heat exchanger outlet cooling-water temperature transmitter 11
The real time monitoring of oral area position coolant temperature, and Real-time Feedback temperature value is to control unit, and control unit and by-passing valve
Actuator 7 connects, in this way, association is established between heat exchanger outlet cooling-water temperature transmitter 11 and bypass valve actuator 7,
After the engine started, waste heat recycling and reusing can be reliably realized, to engine heat engine.
The automotive residual heat recycling and reusing system further includes heater cores 13, and 13 one end of heater cores passes through hot air hose
Road I 14 is connected to the cooling water channel water outlet of engine body 1, and 13 other end of heater cores passes through warm wind pipeline II 15 and starts
The cooling water channel water return outlet of machine ontology 1 is connected to, and air blower 16 is arranged in 13 side of heater cores.
As shown in Fig. 2, it as embodiment 2, is further improved on the basis of embodiment 1.The automobile
Waste heat recycling and reusing system further includes fluid reservoir 17, feed liquor shut-off valve 18, goes out liquid shut-off valve 19, and fluid reservoir 17 is arranged in cooling
On liquid pipeline 9, fluid reservoir 17 includes fluid reservoir outer layer and fluid reservoir internal layer, is arranged between fluid reservoir outer layer and fluid reservoir internal layer empty
Cavity portion, cavity portion are set as vacuum state, and the feed liquor shut-off valve 18 is located in 17 side coolant line 9 of fluid reservoir, out
Liquid shut-off valve 19 is located in 17 other side coolant line 9 of fluid reservoir, feed liquor shut-off valve 18 and out liquid shut-off valve 19 respectively with control
Component 12 processed connects.Above structure so that automotive residual heat recycling and reusing system of the invention have waste heat recycling and reusing and
Two kinds of functions of energy storage.Fluid reservoir, feed liquor shut-off valve and out liquid shut-off valve be arranged when, fluid reservoir is formed by two layers, fluid reservoir outer layer
Cavity portion vacuumize process between fluid reservoir internal layer.In this way, fluid reservoir is enabled reliably to realize heat insulation function.In this way,
When engine cold-start, feed liquor shut-off valve and out liquid shut-off valve are opened in control unit (controller) control, are stored in fluid reservoir
High temperature coolant take the lead in entering engine water jacket along coolant line at this time, warming-up in advance, Huo Zhe are carried out to engine
Winter heats in advance to passenger compartment.At the same time, the coolant temperature that heat exchanger outlet cooling-water temperature transmitter detects
Set temperature T is terminated lower than recuperation of heatSET(generally at 80 DEG C or so), control unit control by-passing valve by bypass valve actuator
Valve block it is mobile, so that vehicle exhaust is fully entered heat exchanger, into heat recovery mode.
Low blackness ε material is arranged in the fluid reservoir outer layer inner surface of the fluid reservoir 17 of the automotive residual heat recycling and reusing system
Expect that low blackness ε material coating is arranged in coating, fluid reservoir inner layer outer surface.Above structure can by low blackness ε material coating
Further increase heat insulation effect.
In example 2, after engine cold-start, coolant temperature is low, and vehicle exhaust is discharged from engine, through being vented
After manifold and exhaust pipe, into heat exchanger, heat release passes to the coolant liquid through over-heat-exchanger, the car tail after heat release cooling
After exhaust pipe is discharged in gas, finally arrange to airspace；And the coolant liquid flowed out from engine water jacket, by warm wind pipeline I into
Enter heat exchanger, after the thermal energy for absorbing vehicle exhaust, in returning to engine water jacket, coolant liquid partial circulating is completed, to engine
Warming-up is carried out, in this way, substantially reducing the warm-up period of available engine, promotes the thermal effect in engine cold-start time interval
Rate meets automobile integrated demand.
Because engine coolant partial circulating and warm wind coolant circuit be at parallel relationship, there is passenger compartment to have plus
When heat demand, when starting engine and entering heat recovery mode, the thermal energy recycled from vehicle exhaust not only can be to engine
Warming-up is carried out, passenger compartment can also be heated by warm wind coolant circuit, promote passenger compartment driver and passenger human body rapidly
Comfort.Specifically: the coolant liquid after heat absorption heating is flowed out from engine water jacket, enters warm wind core by warm wind pipeline I
Body, heat release is to the air in HVAC air duct, then through completing warm wind coolant circuit in II return engine water jacket of warm wind pipeline
Circulation；Air in HVAC air duct first passes through the air side heat absorption heating of heater cores, is then blown into passenger compartment by air blower,
Improve comfort.
In the embodiment of the present invention 2, when engine coolant partial circulating completely closes, controller controls feed liquor shut-off valve
Liquid shut-off valve is closed out, and high temperature coolant can be thus stored in fluid reservoir, is used when next engine cold-start,
For carrying out warming-up in advance to engine, or heated in advance to passenger compartment in winter.In this way, effectively improving the warming-up of engine
Effect.
After the engine body 1 starts, control unit 12 is configured to control feed liquor shut-off valve 18 and liquid is cut out
Only valve 19 is in the structure of opening state；When the coolant liquid partial circulating of the engine body completely closes, control unit
12 are configured to control feed liquor shut-off valve 18 and liquid shut-off valve 19 is in the structure of closed state out.
As shown in Fig. 3, it as embodiment 3, is further improved on the basis of embodiment 1.The automobile
Waste heat recycling and reusing system further includes accumulation of heat heat exchanger 26, feed liquor shut-off valve 18, goes out liquid shut-off valve 19, and accumulation of heat heat exchanger 26 is set
It sets in coolant line 9, accumulation of heat heat exchanger 26 includes accumulation of heat heat exchanger outer layer and accumulation of heat heat exchanger internal layer, coolant line 9
It is configured to the structure by accumulation of heat heat exchanger internal layer, the cavity portion between accumulation of heat heat exchanger outer layer and accumulation of heat heat exchanger internal layer
Interior filling phase change heat storage material block 20, feed liquor shut-off valve 18 are located in 26 side coolant line 9 of accumulation of heat heat exchanger, and liquid ends out
Valve 19 is located in 26 other side coolant line 9 of accumulation of heat heat exchanger, feed liquor shut-off valve 18 and out liquid shut-off valve 19 respectively with control
Component 12 connects.Above structure, the device of the invention have the function of waste heat recycling and reusing and two kinds of PCM energy storage simultaneously.Accumulation of heat
Heat exchanger is formed by two layers, the cavity portion vacuumize process between accumulation of heat heat exchanger outer layer and accumulation of heat heat exchanger internal layer, in this way,
In engine working process, regenerative heat exchanger effectively absorbs thermal energy and is laid in, and low blackness ε material coating can be mentioned further
High heat insulation effect.The phase transformation temperature points of the PCM material are preferably shorter than coolant liquid recuperation of heat and terminate set temperature TSET(coolant liquid heat
Recycling terminates set temperature TSETGenerally at 80 DEG C or so, select between 75 DEG C of -85 DEG C of ranges) material.Feed liquor shut-off valve and
Liquid shut-off valve will play insulation effect out.The material that the preferred latent heat of phase change value of PCM is high, specific heat capacity is big, fusing point is suitable, thermal expansion coefficient is small
Material；The high metal of the preferred thermal coefficient of internal heat exchange tubes or nonmetallic materials, wall thickness is in guarantee operational reliability and before the service life
It puts and gets the small value as far as possible；The good material of the preferred heat insulation effect of casing part, in addition bilayer+vacuum+inner chamber body low blackness ε coating
Thermal-insulating scheme is with the obvious advantage.In such manner, it is possible to effectively improve heat recovery effect, meet performance requirement.
In embodiment 3, when engine cold-start, feed liquor shut-off valve and out liquid are opened in controller (control unit) control
Shut-off valve, storage phase-change thermal energy discharges thermal energy first in regenerative heat exchanger, passes to the coolant liquid for flowing through regenerative heat exchanger, is allowed to
It takes the lead in entering engine water jacket after heating, warming-up in advance is carried out to engine, or heat in advance to passenger compartment in winter；Heat is handed over
The coolant temperature that parallel operation outlet cooling-water temperature transmitter detects terminates set temperature TSET (generally significantly lower than recuperation of heat
At 80 DEG C or so) when, control unit is mobile by the valve block position that bypass valve actuator controls by-passing valve, so that vehicle exhaust is complete
Portion enters heat exchanger, and the coolant liquid in partial circulating enters heat exchanger, into heat recovery mode, realizes that waste heat recycling is sharp again
With.
In embodiment 3, when engine coolant partial circulating completely closes, controller controls feed liquor shut-off valve and out liquid
Shut-off valve is closed, and can thus store partial heat energy in PCM material, in addition, the part being filled in regenerative heat exchanger is high
Warm coolant liquid also includes certain thermal energy, is used when next engine cold-start, for carrying out warming-up in advance to engine, or
Person heats to passenger compartment in advance in winter.The preferred phase transition temperature of PCM material terminates set temperature T lower than coolant liquid recuperation of heatSET's
Material, in addition the design needs of regenerative heat exchanger match with recuperation of heat power, in this way, before engine partial circulating completely closes
Store more phase-change thermal energies.
In automotive residual heat recycling and reusing system of the present invention, the coolant line 9 includes coolant line A
Section 21, coolant line B section 22, coolant line C section 23, spiral heat exchange tube road portion 10, the coolant line of coolant line 9
21 one end of A section is connected to the cooling water channel water outlet of engine body 1,21 other end of coolant line A section and spiral heat exchange tube
The connection of 10 one end of road portion, 10 other end of spiral heat exchange tube road portion are connected to 22 one end of coolant line B section, and B sections of coolant line
22 other ends are connected to 17 entrance of fluid reservoir, and the outlet of fluid reservoir 17 is connected to 23 one end of coolant line C section, coolant liquid
23 other end of pipeline C section is connected to the cooling water channel water return outlet of engine body 1.
Phase change heat storage material block 20 in the cavity portion of the fluid reservoir 17 is set as that phase transition temperature is selected to return lower than heat
It receives and terminates structure made of the phase change heat storage material of set temperature numerical value.
The exhaust pipe 3 includes exhaust pipe leading portion 24, exhaust pipe branch pipe pipeline I 4 and exhaust pipe branch pipe pipeline II 5, row
Tracheae back segment 25, I 4 one end of exhaust pipe branch pipe pipeline are connected to exhaust pipe leading portion 24, I 4 other end of exhaust pipe branch pipe pipeline and row
Tracheae back segment 25 is connected to, and II 5 one end of exhaust pipe branch pipe pipeline is connected to exhaust pipe leading portion 24, and exhaust pipe branch pipe pipeline II 5 is another
End is connected to exhaust pipe back segment 25.
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 (10)
1. a kind of automotive residual heat recycling and reusing system, it is characterised in that: the automotive residual heat recycling and reusing system includes
Engine body (1), exhaust manifold (2), exhaust pipe (3), the exhaust pipe (3) include exhaust pipe branch pipe pipeline I (4) and row
Tracheae branch pipe pipeline II (5), is arranged heat exchanger (6) on exhaust pipe branch pipe pipeline II (5), and by-passing valve is arranged on (3) in exhaust pipe
Actuator (7) and by-passing valve (8), bypass valve actuator (7) are configured to the knot of the valve block position movement of control by-passing valve (8)
Structure, coolant line (9) one end are connected to the cooling water channel water outlet of engine body (1), and coolant line (9) is handed over through overheat
It is connected to again with the cooling water channel water return outlet of engine body (1) after parallel operation (6), the coolant line (9) is located at heat exchange
Spiral heat exchange tube road portion (10) are arranged in position in device (6), and heat is arranged in coolant line (9) position through over-heat-exchanger (6)
Exchanger outlet cooling-water temperature transmitter (11), the heat exchanger outlet cooling-water temperature transmitter (11) and control unit
Part (12) connection, bypass valve actuator (7) are connect with control unit (12).
2. automotive residual heat recycling and reusing system according to claim 1, it is characterised in that: the control unit (12)
The structure for being inside set as being stored with recuperation of heat termination set temperature numerical value works as heat exchange after the 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)；After engine body (1) starting, when heat exchanger outlet coolant temperature
When the heat exchanger outlet coolant liquid actual temperature numerical value that sensor (11) detects is higher than recuperation of heat termination set temperature numerical value,
Control unit (12) is configured to the mobile closure exhaust pipe branch of valve block of control bypass valve actuator (7) control by-passing valve (8)
The structure of pipe pipeline II (5).
3. automotive residual heat recycling and reusing system according to claim 1 or 2, it is characterised in that: automotive residual heat recycles again
It further include heater cores (13) using system, heater cores (13) one end passes through warm wind pipeline I (14) and engine body (1)
The connection of cooling water channel water outlet, heater cores (13) other end pass through the cooling of warm wind pipeline II (15) and engine body (1)
Air blower (16) are arranged in the connection of water route water return outlet, heater cores (13) side.
4. automotive residual heat recycling and reusing system according to claim 1 or 2, it is characterised in that: the automotive residual heat
Recycling and reusing system further includes fluid reservoir (17), feed liquor shut-off valve (18), goes out liquid shut-off valve (19), and fluid reservoir (17) setting exists
In coolant line (9), fluid reservoir (17) includes fluid reservoir outer layer and fluid reservoir internal layer, fluid reservoir outer layer and fluid reservoir internal layer it
Between cavity portion is set, cavity portion is set as vacuum state, and it is cooling that the feed liquor shut-off valve (18) is located at fluid reservoir (17) side
On liquid pipeline (9), liquid shut-off valve (19) is located in fluid reservoir (17) other side coolant line (9) out, feed liquor shut-off valve (18)
Liquid shut-off valve (19) is connect with control unit (12) respectively out.
5. automotive residual heat recycling and reusing system according to claim 4, it is characterised in that: the engine body (1)
After starting, control unit (12) is configured to control feed liquor shut-off valve (18) and liquid shut-off valve (19) is in opening state out
Structure；When the coolant liquid partial circulating of engine body (1) completely closes, control unit (12) is configured to control feed liquor
Shut-off valve (18) and liquid shut-off valve (19) is in the structure of closed state out.
6. automotive residual heat recycling and reusing system according to claim 4, it is characterised in that: automotive residual heat recycling and reusing
Low blackness ε material coating is arranged in the fluid reservoir outer layer inner surface of the fluid reservoir (17) of system, and the setting of fluid reservoir inner layer outer surface is low
Blackness ε material coating.
7. automotive residual heat recycling and reusing system according to claim 1 or 2, it is characterised in that: automotive residual heat recycles again
Further include accumulation of heat heat exchanger (26) using system, feed liquor shut-off valve (18), go out liquid shut-off valve (19), accumulation of heat heat exchanger (26) setting
On coolant line (9), accumulation of heat heat exchanger (26) includes accumulation of heat heat exchanger outer layer and accumulation of heat heat exchanger internal layer, coolant line
(9) structure by accumulation of heat heat exchanger internal layer, the sky between accumulation of heat heat exchanger outer layer and accumulation of heat heat exchanger internal layer are configured to
Phase change heat storage material block (20) are filled in cavity portion, feed liquor shut-off valve (18) is located at accumulation of heat heat exchanger (26) side coolant line
(9) on, liquid shut-off valve (19) is located in accumulation of heat heat exchanger (26) other side coolant line (9) out, feed liquor shut-off valve (18) and
Liquid shut-off valve (19) is connect with control unit (12) respectively out.
8. automotive residual heat recycling and reusing system according to claim 4, it is characterised in that: the coolant line
It (9) include A sections of coolant line (21), B sections of coolant line (22), C sections of coolant line (23), spiral heat exchange tube road portion
(10), A sections of (21) one end of the coolant line of coolant line (9) are connected to the cooling water channel water outlet of engine body (1),
A sections of (21) other ends of coolant line are connected to spiral heat exchange tube road portion (10) one end, spiral heat exchange tube road portion (10) other end
It is connected to B sections of coolant line (22) one end, B sections of (22) other ends of coolant line are connected to fluid reservoir (17) entrance, described
Fluid reservoir (17) outlet be connected to C sections of coolant line (23) one end, C sections of (23) other ends of coolant line and engine sheet
The cooling water channel water return outlet of body (1) is connected to.
9. automotive residual heat recycling and reusing system according to claim 4, it is characterised in that: the cavity portion of fluid reservoir (17)
Interior phase change heat storage material block (20) is set as the phase-transition heat-storage for selecting phase transition temperature to terminate set temperature numerical value lower than recuperation of heat
Structure made of material.
10. automotive residual heat recycling and reusing system according to claim 1 or 2, it is characterised in that: exhaust pipe (3) includes
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), exhaust pipe
Branch pipe pipeline I (4) one end is connected to exhaust pipe leading portion (24), I (4) other end of exhaust pipe branch pipe pipeline and exhaust pipe back segment (25)
Connection, II (5) one end of exhaust pipe branch pipe pipeline is connected to exhaust pipe leading portion (24), II (5) other end of exhaust pipe branch pipe pipeline and
Exhaust pipe back segment (25) connection.
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| CN201910086024.6A CN109630246A (en) | 2019-01-29 | 2019-01-29 | A kind of automotive residual heat recycling and reusing system |
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| CN110593995A (en) * | 2019-09-30 | 2019-12-20 | 重庆长安汽车股份有限公司 | Engine exhaust waste heat recovery system |
| CN110949095A (en) * | 2019-12-23 | 2020-04-03 | 深圳壹果科技有限公司 | Car as a house heat energy accuse recovery system |
| CN111997809A (en) * | 2020-07-27 | 2020-11-27 | 上海工程技术大学 | Water heating type warming device for cold start of automobile engine |
| CN112282909A (en) * | 2020-10-30 | 2021-01-29 | 潍柴动力股份有限公司 | Engine exhaust system, control method thereof and engine |
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Application publication date: 20190416 |