CN105829826A - Heat recovery device with standoff heat exchanger mount - Google Patents
Heat recovery device with standoff heat exchanger mount Download PDFInfo
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- CN105829826A CN105829826A CN201480068233.3A CN201480068233A CN105829826A CN 105829826 A CN105829826 A CN 105829826A CN 201480068233 A CN201480068233 A CN 201480068233A CN 105829826 A CN105829826 A CN 105829826A
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- gas
- heat
- heat exchanger
- airflow
- heat reclamation
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- 238000011084 recovery Methods 0.000 title abstract description 5
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 45
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000005452 bending Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 239000002826 coolant Substances 0.000 description 15
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 230000008646 thermal stress Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000000605 extraction Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/0205—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using heat exchangers
-
- 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
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/02—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a heat exchanger
-
- 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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/36—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an exhaust flap
-
- 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
- F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A heat recovery device comprises a gas flow conduit, a gas/liquid heat exchanger and a gas diverter valve provided in the gas flow conduit, the valve being movable between a bypass position and a heat exchange position. The gas flow conduit includes a divergent branch point at which it is divided into a bypass branch conduit and a heat exchange branch conduit. The bypass branch conduit bypasses the heat exchanger, and the heat exchange branch conduit includes an upstream conduit portion and a downstream conduit portion. The gas flow direction from the upstream conduit portion into the gas inlet opening of the heat exchanger diverges in a direction away from the overall gas flow direction, permitting the heat exchanger to be spaced away from the exhaust gas conduit.
Description
The cross reference of associated documents
This application claims priority and the rights and interests of the U.S. Provisional Patent Application the 61/916th, 336 submitted to for 16th in December in 2016, by way of reference disclosure of which is included in herein.
Technical field
The present invention relates to the device for removing heat from hot-fluid, described device is all in this way for removing the heat reclamation device of heat from motor vehicle air induction and gas extraction system.
Background technology
In many application, need to remove heat from air-flow.Such as, in the motor vehicle, it may be necessary to from air inlet and/or exhaust stream, remove heat.Such as, air inlet (or pressurized air) needs to need to cool down in some applications, such as in turbocharged engine or over-boosted electromotor.In the vehicle including exhaust gas recirculatioon (EGR) or exhaust heat recovery (EGHR) system, heat to be removed from exhaust stream.The heat removed from inlet air flow or exhaust stream is generally sent to be positioned in the liquid coolant of heat exchanger.
In exhaust heat recovery system, such as, the heat from vehicle exhaust is sent to other vehicle part via liquid coolant or oil, to heat air and vehicle fluid quickly when vehicle launch, thus reduces fuel consumption.The air heated by aerofluxus in order to heat passenger compartment rapidly, and can defrost for window, reduces the needs to the long idle period during starting in cold snap.That extract from aerofluxus, make these fluid viscosities weaken and improve the saving of fuel during startup in order to heating the heat of the such as vehicle fluid such as engine oil and power transmitting fluids.After the initial start up period, it is no longer necessary to from aerofluxus, reclaim heat.Thus, EGHR system generally includes bypass, to minimize after vehicle reaches normal working temperature from the heat transmission being vented to liquid coolant.This contributes to the load minimizing on cooling system, and minimizes liquid coolant boiling or the risk of thermal degradation.
EGHR system thus comprises gas liquid exchanger, and this heat exchanger is for extracting heat from vehicle exhaust, and this heat is sent to liquid coolant, and liquid coolant is typically water/ethylene glycol engine coolant, but can also directly transfer heat to oil.EGHR system also includes gas-separating valve, and this gas-separating valve is for being directed through heat exchanger at least partially by exhaust stream during vehicle launch, and for walking around this heat exchanger when being no longer necessary to self-purging heat.This heat exchanger and this valve require connect to gas extraction system pipeline.It is also provided with actuator to control the operation of this valve.This valve can be operated by electric control solenoid, wax motor, engine vacuum or bimetallic or marmem (SMA) actuator.
In order to save space and reduce cost and vehicle weight, this valve and heat exchanger may be formed integrally as individual unit, and it is referred to herein as EGHR device.But, in multiple integral type EGHR devices, no matter this device is in heat exchange pattern is in bypass mode, and this heat exchanger is all by heating exhaust gas.This is likely due to the exhaust gas leakage through this valve and/or conduction of heat.Which increasing the heat being sent to coolant, increase load on the cooling system, and have risk and the thermal stress of induction of the coolant thermal degradation of accumulation, this may cause damage by heat exchanger.
Have been developed for EGHR device to solve some in these problems.Such as, U.S. Provisional Patent Application the 61/771st commonly assigned, that submit on March 1st, 2013, No. 608 and on August 30th, 2012 submit to U.S. Patent Application No. 13/599,339 (on March 14th, 2013 as US2013/0061584A1 announce) there is substantially t-shaped and U-shaped structure.This constructs has along the shorter block length of airflow direction, and this can allow it to be positioned in engine room, closer to hot type source of the gas.And, it is spaced apart with discharge duct that this T-shaped structure also allows for heat exchanger, thus reduces when this device is in bypass mode from being vented to the heat that coolant transmits.But, this design needs the independent valve body between discharge duct and heat exchanger or flow channel, wherein has solid flange joints between heat exchanger and valve body or flow channel.The ability that this structure limitations affect EGHR device expands under different operating gas temperature, and especially, have impact on the flexibility of its heat exchanger body between ingress port and outlet port being at significantly different temperature.This can cause the high thermal stress of heat exchanger, and the heat exchanger plate inefficacy near flange joints.
Thus, need the simple and effective heat reclamation device for motor vehicle air induction and gas extraction system, described device minimizes the space of used parts, weight and quantity, it is prone to be integrated in existing gas extraction system pipeline, and also minimizes thermal stress and in bypass mode, be delivered to the unwanted heat of coolant.
Summary of the invention
In one embodiment, it is provided that a kind of heat reclamation device, this heat reclamation device includes: airflow line, and it has entrance and exit, is wherein limited to by the general air flow direction of airflow line between the entrance and exit of described airflow line；Gas/liquid heat exchanger, it has gas access opening and gas exit opening；Gas-separating valve, it is arranged in airflow line, and wherein this valve can move between bypass position and heat exchange position.Airflow line includes bifurcated branches point, and at this bifurcated branches point, airflow line is divided into bypass lateral and heat exchange lateral.This heat exchanger walked around by bypass lateral, and heat exchange lateral includes upstream pipe portion and downstream line portion.Upstream pipe portion has the first end and the second end, and this first end connects with the flowing of described airflow line at described bifurcated branches point, and this second end connects with the gas access open flow of heat exchanger.Downstream line portion has the first end that the gas outlet's open flow with heat exchanger connects.Enter the airflow direction of gas access opening of heat exchanger along the direction deviation away from the general air flow direction through this airflow line.
According to an aspect, heat reclamation device also includes converging branch point, converges at branch point at this, and bypass lateral and heat exchange lateral converge, and this converges the upstream that branch point is positioned at the outlet of airflow line.Downstream line portion can have and converging the second end that connects of flowing with airflow line at branch point.
According on the other hand, the first plane is through the entrance and exit of airflow line, the first branch point and bypass lateral.Second plane can be through the second end of upstream pipe portion and first end in downstream line portion, and wherein, the part through heat reclamation device of the first plane and the second plane is spaced apart from each other.Second end of upstream pipe portion and first end in downstream line portion can be fixed to heat exchanger in described second plane at corresponding gas access opening and gas exit opening.
According to another aspect, upstream pipe portion and downstream line portion away from the first plane and towards the second plain bending.
It is not connected to each other according to another aspect, the second end of upstream pipe portion and first end in downstream line portion, or is not attached to the other parts of airflow line.
According to another aspect, become the angle of about 90 degree with the general air flow direction through gas channel at the airflow direction of gas access opening part of heat exchanger.
According to another aspect, become the angle of about 90 degree with the general air flow direction through gas channel at the airflow direction of gas outlet's opening part of heat exchanger.
According to another aspect, become the angle of about 90 degree with the general air flow direction through gas channel at the second end of upstream pipe portion and the airflow direction of the end in downstream line portion.
According to another aspect, heat exchanger is configured to by sheetpile, and these plates limit and are basically parallel to gas flow channel that extend through the general air flow direction of gas channel, that replace and liquid flow path.
According to another aspect, heat exchanger also includes the gas inlet manifold with gas access open communication and the gas outlet manifold with gas outlet's open communication, and wherein each in gas inlet manifold and gas outlet manifold airflow direction is at an angle with the general air flow direction through gas channel.
According to another aspect, gas-separating valve is positioned at bifurcated branches point.When gas-separating valve is in bypass position, the air-flow arriving heat exchange lateral can be the most blocked；And when gas-separating valve is in heat exchange position, the air-flow arriving bypass lateral can be the most blocked.
According to another aspect, heat exchanger also includes that base plate, gas access opening and gas exit opening are arranged in the soleplate, and wherein the second end of upstream pipe portion and first end in downstream line portion are fixed to base plate.This base plate at least can be reinforced in the region near gas access opening and gas exit opening or thicken.
It is in alignment with each other along general air flow direction according to another aspect, the second end of upstream pipe portion and first end in downstream line portion.
According to another aspect, the direction of the second end of upstream pipe portion and the first end general air flow direction along a direction substantially perpendicular in downstream line portion is in alignment with each other.
Accompanying drawing explanation
The present invention is described the most in an illustrative manner, in accompanying drawing now with reference to accompanying drawing:
Fig. 1 is the top perspective view of the heat reclamation device according to the first embodiment of the present invention；
Fig. 2 be the heat reclamation device of Fig. 1 from the observable end-view of its arrival end；
Fig. 3 is the top view of the heat reclamation device of Fig. 1, and wherein gas-separating valve is in bypass mode, and this airflow line is to intercept via first plane PL1 of Fig. 2 to obtain；
Fig. 4 is the top view of the heat reclamation device of Fig. 1, and wherein gas-separating valve is in heat exchange pattern, and this airflow line is to intercept via first plane PL1 of Fig. 2 to obtain；
Fig. 5 shows the top perspective view of the isolation of the airflow line of the heat reclamation device of Fig. 1；
Fig. 6 is the axonometric chart of the device of Fig. 1, it illustrates the opposite side of this device.
Fig. 7 is the sectional view that the 7-7 ' cutting along the line of Fig. 1 obtains；
Fig. 8 is the face upwarding stereogram of heat reclamation device according to the second embodiment of the present invention；
Fig. 9 is the top perspective view of heat reclamation device shown in Fig. 8；
Figure 10 is the top view of the heat reclamation device according to the 3rd embodiment, and its part illustrates with sectional view；And
Figure 11 shows the top perspective view of the airflow line of the heat reclamation device of Figure 10.
Detailed description of the invention
Referring now to Fig. 1 to Fig. 5, the heat reclamation device 10 according to first embodiment is described.This heat reclamation device 10 can serve as the EGHR device in motor vehicles exhaust system, and is therefore sometimes referred to herein as EGHR device 10.
This device 10 includes gas-separating valve 12, gas/liquid heat exchanger 14 and airflow line 16.Airflow line 16 has entrance 18 and outlet 20.In the case of device 10 is EGHR device, this device 10 can be installed in the discharge duct of motor vehicles, is positioned at the downstream of discharge manifold and the upstream of tail pipe.Due to its relatively compact dimensioning, this device 10 may be located in the engine room of vehicle, near discharge manifold.As it is used herein, term " upstream " and " downstream " are such terms, i.e. they are in order to describe each element position relative to the flow path of the gas flowing through this device 10 of device 10.
It is limited between entrance 18 and outlet 20 by the general direction of the air-flow of device 10.In the present embodiment, the general direction of air-flow is parallel to the arrow A and B of Fig. 1, and arrow A and B is identical with the airflow direction at entrance 18 and outlet 20 respectively.
Heat exchanger 14 can be with commonly assigned U.S. Patent Application No. 13/599, No. 399 described heat exchangers are similar or identical, this U.S. Patent application on August 30th, 2012 submit to, the invention of entitled " exhaust gas heat recovery device ", entire contents is included in herein by way of reference.
Heat exchanger 14 includes heat exchanger core 22, and this heat exchanger core 22 includes the heap of central layer 24, and the heap of central layer 24 limits the multiple gas channels 26 and multiple liquid flow path 28 arranged with alternating sequence.Gas channel 26 and liquid flow path 28 can be parallel to the air-flow by gas pipeline 20.The gas flowing through gas channel 26 can be the vehicle exhaust of heat, and the liquid flowing through liquid flow path 28 can be the liquid coolants such as such as water/ethylene glycol, and this coolant can also cycle through other parts of the cooling system of this vehicle.Central layer 24 can include rustless steel or other heat proof material, and can engage by carrying out soldering with suitable filler metal.
Multiple manifolds extend through this core 22, and may be substantially perpendicular to the airflow direction by pipeline 20.Heat exchanger 14 includes four these type of manifolds, it may be assumed that the gas inlet manifold 30 connected with gas channel 26 flowing and gas outlet manifold 32；And the liquid inlet manifold 34 and liquid outlet manifold 36 connected that flow with liquid flow path 28.Liquid manifold 34,36 connects with a pair liquid fittings 6,8 flowing.
Heat exchanger core 22 has base plate 38, and this base plate 38 is provided with gas access opening 40 and gas exit opening 42.Each opening 40,42 extends through base plate 38 and connects with gas inlet manifold 30 and gas outlet manifold 32 respectively.Heat exchanger 14 is different from U.S. Patent Application No. 13/599, and No. 399 described, because it does not include the thicker installing plate of the flange for installation into valve body.Continuous print installing plate is attached to base plate 38 and may limit the flexibility of the heat exchanger 14 between gas access opening 40 and gas exit opening 42, and cause the high thermal stress in heat exchanger.
In addition to the sectional view of Fig. 7, other view is not all shown specifically the structure of heat exchanger 14.Will be understood that this heat exchanger can be is " self-enclosed " as shown in Figure 7, and i.e. it does not include shell body.But, this is not important, and heat exchanger 14 can include shell body, and this shell body surrounds and limits gas and/or multiple pipes of liquid flow path or plate.
Between its entrance 18 and outlet 20, airflow line 16 is divided into bypass lateral 46 and heat exchange lateral 48.In this embodiment, this bypass lateral 46 extends along whole airflow direction.This bypass lateral 46 limits bypass flow path, and when need not reclaim heat from gas, when such as reaching its normal working temperature when vehicle, gas can flow through along bypass flow path, and without heat exchanger 14.
Airflow line 16 punishes divided into branch conduits 46,48 at bifurcated branches point 50, and this bifurcated branches point 50 is positioned heat exchanger 14 upstream end.In this embodiment, gas-separating valve 12 is positioned at this bifurcated branches point 50, stops air-flow to pass through the one in lateral 46,48 with the regioselectivity according to gas-separating valve 12.
Lateral 46,48 can converge in the downstream converging branch point 52 and being in heat exchanger 14, and this converges the upstream that branch point 52 is positioned at the outlet 20 of airflow line 16.
This heat exchange lateral 48 includes upstream pipe portion 54 and downstream line portion 56.Upstream pipe portion 50 has the first end 58 and the second end 60, and this first end 58 connects with airflow line 16 flowing at bifurcated branches point 50, and to receive the gas from entrance 18, this second end 60 flows with the gas access opening 40 of heat exchanger 14 and connects.
Downstream line portion 56 has the first end 62 and the second end 64, and this first end 62 flows with gas outlet's opening 42 of heat exchanger 14 and connects, and this second end 64 can connect with airflow line 16 flowing at branch point 52 converging.
Can from accompanying drawing it is seen that, the airflow direction at the gas access opening 40 and gas exit opening 42 of heat exchanger 14 is different from the general air flow direction through airflow line 16.In this regard, along with gas flows through heat exchange lateral 48 towards heat exchanger 14, this airflow direction deviates from general air flow direction.In the present embodiment, when air-flow enters the first end 58 of upstream pipe portion 54, this airflow direction is substantially identical with general air flow direction.This upstream pipe portion 54 bends about 90 degree along its length, to cause this air-flow relative to the change of about 90 degree on general air flow direction experience direction at the second end 60 of upstream pipe portion 54 and the gas access opening 40 of heat exchanger.
And, can from Fig. 7 it is seen that, airflow direction in heat exchanger 14 is substantially U-shaped, along becoming the relative direction of about 90 degree to flow through gas outlet and inlet manifold 30,32 with general air flow direction, and can flow through gas channel 26 along the direction being basically parallel to general air flow direction.It is that device 10 provides the shorter block length along airflow direction, such as the length in T-shaped EGHR device mentioned above by this U-shaped flow path of heat exchanger 14.
At gas outlet's opening 42 of heat exchanger and first end 62 in downstream line portion 56, this airflow direction becomes the angle of about 90 degree still relative to general air flow direction.Downstream line portion 56 bends about 90 degree along its length, to cause the change of about 90 on air-flow experience direction so that when air-flow arrives second end 64 in downstream line portion 56, this air-flow is basically parallel to general air flow direction.
Thus, it can be seen that, upstream and downstream pipe section 54,56 forms curve transition, to change the direction of the air-flow entering and exiting heat exchanger 14.This allows to use the compact heat exchanger with U-shaped flow path, but also provides for further advantage.Can find out from accompanying drawing, and find out from Fig. 3 to Fig. 5 especially, the second end 60 of upstream pipe portion 54 and first end 62 in downstream line portion 56 do not have any connection each other, and do not carry out any connection with the other parts of airflow line 16.Upstream pipe portion 54 and downstream line portion 56 are only connected to the remainder of airflow line 16 at they corresponding opposite ends 58,64.Owing to end 60, the 62 not remainder with airflow line 16 of upstream and downstream pipe section 54,56 is connected, and owing to pipe section 54,56 self is bending, so they can bend (i.e. towards each other and away from each other, basic along general air flow direction) less amount, thus alleviating potential thermal stress, described thermal stress may be caused by the thermal expansion of the length along plate 24 of heat exchanger 14 and contraction.
Can from accompanying drawing it is seen that, in addition to the fluidic junction of heat exchange lateral 48, airflow line 16 is generally within single plane.In this regard, entrance 18, outlet 20, bypass lateral 46, bifurcated branches point 50 and to converge branch point 52 be all substantially coplanar so that the first plane PL1 (Fig. 2) can be through some or all in these parts.
On the other hand, the furcation of heat exchange lateral 48 and particularly upstream pipe portion 54 and downstream line portion 56 are away from this first plain bending, and extend towards the second plane PL2 (Fig. 2), this second plane passes the second end 60 and first end 62 in downstream line portion 56 of upstream pipe portion 54, and/or pipe section 54 and 56 is fixed to the point of heat exchanger 14.
Although the first plane and the second plane need not be parallel to each other, but through device 10 each several part, the part of each plane is spaced apart.This interval can be such as in fig. 2, it is seen that and cause heat exchanger 14 spaced apart with each several part of airflow line 16, in addition to heat exchange lateral 48.Thus, when device 10 is in bypass mode, heat exchanger 14 separates with the thermal current through bypass lateral 46, thus decreases when device 10 is in bypass mode from the heat being vented to coolant transmission.
Gas-separating valve 12 includes the movable valve member 82 being pivotably mounted in airflow line 16.Valve member 82 includes the baffle plate pivoted around pivot axis P, and this pivot axis P extends through flow channel becoming the angle of 90 degree with the airflow direction through piping 16.Valve member 82 may be mounted on bar 84, and rotates between heat exchange position (Fig. 4) and bypass position (Fig. 3) on bar 84.
In embodiment shown in the drawings, valve member 82 is arranged on and converges at branch point 50, and this makes valve member 82 can block bypass lateral 46 or the entrance of heat exchange lateral 48.For heat exchanger 14 is provided maximum benefit with thermal current isolation when although this is arranged in bypass mode it should be appreciated that, this valve member 82 may be mounted at other place in airflow line.Such as, the valve member 82 of like configurations may be mounted at and converges at branch point 52, alternately to block bypass lateral 46 and the outlet of heat exchange lateral 48.Alternatively, valve member 82 can be mounted in the butterfly valve member in bypass lateral, to alternately turn on and to block the bypass flow by bypassing lateral 46.As another interchangeable example, valve member 82 can be mounted in the butterfly valve member in heat exchange lateral 48, to alternately turn on and to block the bypass flow by heat exchange lateral 48.
Valve member 82 can be controlled by the device of any appropriate around the pivot of axis P, and described device includes electric magnet or the actuator driven by engine vacuum, or other suitable actuator or control system.Valve member 82 can have any suitable shape, to seal the inner surface of airflow line 16 when heat exchange position and bypass position, and depends, at least partially, on the shape of gas channel 16.In order to maximize the heat insulation of when bypass mode heat exchanger 14, this valve member 82 should substantially completely stop gas to flow to heat exchange lateral 48 when bypass position.Also wanting to seal the inner surface of pipeline 16 so that when being in heat exchange position, it can substantially completely stop gas to flow to bypass lateral 48, but this is not crucial.
Shown in the drawings of lining or " bearing " 88, one end of valve rod 84 extends in this lining 88, and this lining 88 can accommodate valve-supporting part (not shown).Typically, one end of valve rod can receive in lining 88, and lining 88 may be located in flow channel 16, and the other end of valve rod 84 is arranged on conduit wall lining interiorly or exteriorly or a bearing 88 typically across conduit wall and extending through.And, the penetration end of valve rod 84 can typically be attached to valve actuating mechanism 86, as Fig. 5 schematically shows.
In the work of device 10, when valve member 82 is in the heat exchange position shown in Fig. 4, bypass lateral 46 is blocked by valve member 82 at least in part, and the entrance of heat exchange lateral 48 substantially completely opens wide simultaneously, thus allows air-flow to pass through heat exchanger 14.Air-flow from entrance 18 enters heat exchange duplexure 48 at bifurcated branches point 50, and enters the first end 58 of upstream pipe portion 54.Then gas flows through upstream pipe portion 54 and arrives its second end 60, then enters heat exchanger 14 by gas access opening 40.In heat exchanger 14, gas inflow gas inlet manifold 30, from this gas inlet manifold 30, gas enters gas channel 26 to transfer heat into the liquid coolant flowing through liquid flow path 28.Then gas flow out from gas channel 26, and enters gas outlet manifold 32, and from this gas outlet manifold 32, gas exits heat exchanger 14 via gas outlet's opening 42.From gas outlet's opening 42 of heat exchanger 14, gas enters first end in downstream line portion 56, and flows to it and be positioned at the second end 64 converged at branch point 52, and gas converges branch point 52 from this and flows to outlet 20.
When valve 12 is in the bypass position of Fig. 3, the air-flow from entrance 18 enters bypass duplexure 46 at bifurcated branches point 50.Then gas flow through bypass duplexure 46 arrive converge branch point 52, gas converges branch point 52 from this and flows to outlet 20.
The pipe section 54,56 of heat exchange duplexure 48 can be fixed to this heat exchanger 14 by various devices, a kind of shown in the sectional view of Fig. 7 in described device.As it can be seen, first end 62 in the second end 60 of upstream pipe portion 54 and downstream line portion 56 can be provided with spine 66 and 68 respectively near their end, prevent from being excessively inserting heat exchanger 14 via base plate 48 serving as stopper section.Can also be extended by swaged forging in each end 60,62, to realize closely cooperating in gas access opening 40 and gas exit opening 42, then carry out soldering.Will be understood that other layout of existence is installed to heat exchanger 14 for by pipe section 54,56.It will further be understood that base plate 38 at least can be strengthened in the region around gas access opening 40 and gas exit opening 42 and/or thicken, to provide the firm link between base plate 38 and pipe section 54,56.
In apparatus 10, upstream pipe portion 54 and the downstream line portion 56 of heat exchange duplexure 48 is in alignment with each other along general air flow direction.And, heat exchange duplexure 48 is at least parallel to bypass duplexure 46 in the plane graph of Fig. 3 and Fig. 4.But, each parts orientation relative to each other is changed based in part on packing instructions.Therefore, the orientation of each parts can be differently configured from each parts orientation of device 10, as discussed referring to Fig. 8 and Figure 10.
Fig. 8 and Fig. 9 shows heat reclamation device 100 according to a second embodiment of the present invention.The heat reclamation device 100 of Fig. 8 and Fig. 9 is different from heat reclamation device 10 on its each parts orient.All elements of device 100 are also contained in device 10, and are described above, it is not necessary that conduct further description these elements.The element that heat reclamation device 10 has jointly with 100 is indicated by identical reference in figs. 8 and 9.
In the heat reclamation device 100 of Fig. 8 and Fig. 9, upstream pipe portion 54 and the downstream line portion 56 of heat exchange duplexure 48 are in alignment with each other along a direction, and the direction becomes about 90 degree with general air flow direction, and become about 90 degree with the airflow direction through bypass duplexure 46.It addition, be oriented the angle becoming about 90 degree with general air flow direction through the airflow direction of gas channel 26.Will be understood that in this embodiment, it is not necessary that heat exchanger 14 is oriented and becomes 90 degree with general air flow direction.Such as, heat exchanger 14 can be obliquely oriented relative to general air flow direction.
It is seen that, this device 100 according to the second embodiment shortens the length in the downstream line portion 56 in heat exchange duplexure 48, thus effectively eliminate the part being parallel to bypass duplexure 46 extension in downstream line portion 56, because two duplexures 46,48 converge branch point 52 near this.Thus, this device 100 can be more compact, lighter and use the material more less than said apparatus 10.Limit however, it will be appreciated that the total structure of heat reclamation device described herein depends, at least partially, on the space in the vehicle that they are arranged on.
Figure 10 and Figure 11 shows heat reclamation device 110 according to a third embodiment of the present invention.The view of the heat reclamation device 110 in Figure 10 is similar to the view of Fig. 3, the first horizontal plane intercept, and valve 12 is in bypass position, and shows the profile of heat exchanger 14 with chain-dotted line.Figure 11 independently shows the airflow line 16 of heat reclamation device 110.Heat reclamation device 110 and heat reclamation device 10 and 100 are different in parts orientation.All elements of device 110 are also contained in device 10 and 100, and are described above, it is not necessary that conduct further description these elements.The element that heat reclamation device 10 has jointly with 110 is indicated by identical reference in Fig. 10.
The heat reclamation device 110 of Figure 10 with Figure 11 achieves the beneficial effect similar with above-mentioned heat reclamation device 100, and it essentially eliminates the part being parallel to bypass duplexure 46 extension in downstream line portion 56.In heat reclamation device 110, square openings at the second end 60 of upstream pipe portion 54 and first end 62 in downstream line portion 56 relative to each other aligns (as by shown in the dotted line of Figure 11), but slightly rotate relative to general air flow direction with through bypassing the airflow direction (in Fig. 10, around the axis being perpendicular to paper plane) of duplexure 46.This slightly rotates the length minimizing downstream line portion 56, keeps the alignment of square openings simultaneously, to simplify the heat exchanger 14 connection to pipe section 54 and 56.Thus, heat exchanger 14 and its gas channel 26 airflow direction relative to general air flow direction with via bypass branch pipeline 46 is at an angle of.
Although the present invention has combined some preferred embodiment and has been described, but the invention is not restricted to these embodiments.On the contrary, the present invention includes all embodiments that may fall within the scope of the appended claims.
Claims (19)
1. a heat reclamation device, including:
Airflow line, has entrance and exit, and wherein the general air flow direction through described airflow line is limited between the described entrance of described airflow line and described outlet；
Gas/liquid heat exchanger, has gas access opening and gas exit opening；
Gas-separating valve, is arranged in described airflow line, and wherein said valve can move between bypass position and heat exchange position；
Wherein, described airflow line includes bifurcated branches point, and at described bifurcated branches point, described airflow line is divided into bypass lateral and heat exchange lateral；
Wherein, described heat exchanger walked around by described bypass lateral, and described heat exchange lateral includes upstream pipe portion and downstream line portion；
Wherein, described upstream pipe portion has the first end and the second end, and described first end connects with the flowing of described airflow line at described bifurcated branches point, and described second end connects with the described gas access open flow of described heat exchanger；
Wherein, described downstream line portion has the first end that the described gas outlet open flow with described heat exchanger connects；And
Wherein, the airflow direction of the described gas access opening entering described heat exchanger deviates along the direction away from the described general air flow direction through described airflow line.
2. heat reclamation device as claimed in claim 1, it is characterised in that also including converging branch point, converge at branch point described, described bypass lateral and described heat exchange lateral converge, described in converge the upstream that branch point is positioned at the outlet of described airflow line.
3. heat reclamation device as claimed in claim 2, it is characterised in that described downstream line portion has at described the second end converging and connecting with the flowing of described airflow line at branch point.
4. heat reclamation device as claimed any one in claims 1 to 3, it is characterised in that the first plane is through the entrance and exit of described airflow line, described first branch point and described bypass lateral.
5. heat reclamation device as claimed in claim 4, it is characterized in that, second plane can pass the second end and first end in described downstream line portion of described upstream pipe portion, and wherein, the part through described heat reclamation device of described first plane and described second plane is spaced apart from each other.
6. heat reclamation device as claimed in claim 5, it is characterized in that, the second end of described upstream pipe portion and first end in described downstream line portion are fixed to described heat exchanger at corresponding described gas access opening and described gas outlet opening part in described second plane.
7. the heat reclamation device as according to any one of claim 4 to 6, it is characterised in that described upstream pipe portion and described downstream line portion are away from described first plane and towards described second plain bending.
8. the heat reclamation device as according to any one of claim 1 to 7, it is characterised in that the second end of described upstream pipe portion and first end in described downstream line portion are not connected to each other, or are not attached to the other parts of described airflow line.
9. the heat reclamation device as according to any one of claim 1 to 8, it is characterised in that become the angle of about 90 degree at the airflow direction of described gas access opening part of described heat exchanger with the described general air flow direction through described gas channel.
10. as claimed in any one of claims 1-9 wherein heat reclamation device, it is characterised in that become the angle of about 90 degree at the airflow direction of described gas outlet opening part of described heat exchanger with the described general air flow direction through described gas channel.
11. heat reclamation devices as according to any one of claim 1 to 10, it is characterized in that, become the angle of about 90 degree at the second end of described upstream pipe portion and the airflow direction of the end in described downstream line portion with the described general air flow direction through described gas channel.
12. heat reclamation devices as according to any one of claim 1 to 11, it is characterized in that, described heat exchanger is configured to by sheetpile, and these plates limit and are basically parallel to gas flow channel that extend through the described general air flow direction of described gas channel, that replace and liquid flow path.
13. heat reclamation devices as according to any one of claim 1 to 12, it is characterized in that, described heat exchanger also includes the gas inlet manifold with described gas access open communication and the gas outlet manifold with described gas outlet open communication, and wherein each in described gas inlet manifold and described gas outlet manifold airflow direction is at an angle with the described general air flow direction through described gas channel.
14. heat reclamation devices as according to any one of claim 1 to 13, it is characterised in that described gas-separating valve is positioned at described bifurcated branches point.
15. heat reclamation devices as claimed in claim 14, it is characterised in that
When described gas-separating valve is in described bypass position, the air-flow arriving described heat exchange lateral is the most blocked；And
When described gas-separating valve is in described heat exchange position, the air-flow arriving described bypass lateral is the most blocked.
16. heat reclamation devices as according to any one of claim 1 to 15, it is characterized in that, described heat exchanger also includes base plate, described gas access opening and described gas outlet opening are arranged in described base plate, and wherein, the second end of described upstream pipe portion and first end in described downstream line portion are fixed to described base plate.
17. heat reclamation devices as claimed in claim 16, it is characterised in that described base plate is at least reinforced in the region near described gas access opening and described gas outlet opening or thickeies.
18. heat reclamation devices as according to any one of claim 1 to 17, it is characterised in that the second end of described upstream pipe portion and first end in described downstream line portion are in alignment with each other along described general air flow direction.
19. heat reclamation devices as according to any one of claim 1 to 18, it is characterised in that the direction of the second end of described upstream pipe portion and the first the most described general air flow direction of end in described downstream line portion is in alignment with each other.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361916336P | 2013-12-16 | 2013-12-16 | |
| US61/916,336 | 2013-12-16 | ||
| PCT/CA2014/051211 WO2015089657A1 (en) | 2013-12-16 | 2014-12-15 | Heat recovery device with standoff heat exchanger mount |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105829826A true CN105829826A (en) | 2016-08-03 |
Family
ID=53367819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480068233.3A Pending CN105829826A (en) | 2013-12-16 | 2014-12-15 | Heat recovery device with standoff heat exchanger mount |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150167519A1 (en) |
| CN (1) | CN105829826A (en) |
| CA (1) | CA2933269A1 (en) |
| DE (1) | DE112014005714T5 (en) |
| WO (1) | WO2015089657A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106609694A (en) * | 2016-12-05 | 2017-05-03 | 柳州金创科技有限责任公司 | Automobile exhaust utilizing device |
| CN106703952A (en) * | 2016-12-05 | 2017-05-24 | 柳州金创科技有限责任公司 | Automobile tail gas utilization device accelerating diversion |
| CN109578121A (en) * | 2017-09-29 | 2019-04-05 | 博萨尔排放控制系统公司 | Heat recovery component for waste gas system |
| CN113518900A (en) * | 2019-03-01 | 2021-10-19 | 彼得罗菲奥伦蒂尼有限公司 | Method for detecting the flow of gas in a main conduit and device for measuring the flow of gas in a gas conduit |
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| US10207567B2 (en) * | 2012-10-19 | 2019-02-19 | Ford Global Technologies, Llc | Heater core isolation valve position detection |
| KR101499221B1 (en) * | 2013-11-14 | 2015-03-05 | 현대자동차주식회사 | Apparatus for exhaust heat recovery with embedded valve actuator |
| GB2549121B (en) * | 2016-04-06 | 2019-06-12 | Jaguar Land Rover Ltd | Valve arrangement for an energy recovery unit |
| US9909541B1 (en) | 2016-10-18 | 2018-03-06 | Ford Global Technologies, Llc | Method and system for exhaust heat exchanger diagnostics |
| JP6752389B1 (en) * | 2020-05-29 | 2020-09-09 | マレリ株式会社 | Exhaust heat recovery device |
| KR20220006896A (en) * | 2020-07-09 | 2022-01-18 | 현대자동차주식회사 | Exhaust heat recovery apparatus |
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- 2014-12-15 CA CA2933269A patent/CA2933269A1/en not_active Abandoned
- 2014-12-15 DE DE112014005714.2T patent/DE112014005714T5/en not_active Withdrawn
- 2014-12-15 US US14/569,881 patent/US20150167519A1/en not_active Abandoned
- 2014-12-15 CN CN201480068233.3A patent/CN105829826A/en active Pending
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| CN103119280A (en) * | 2010-07-22 | 2013-05-22 | 威斯卡特工业有限公司 | Exhaust heat recovery system with bypass |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106609694A (en) * | 2016-12-05 | 2017-05-03 | 柳州金创科技有限责任公司 | Automobile exhaust utilizing device |
| CN106703952A (en) * | 2016-12-05 | 2017-05-24 | 柳州金创科技有限责任公司 | Automobile tail gas utilization device accelerating diversion |
| CN109578121A (en) * | 2017-09-29 | 2019-04-05 | 博萨尔排放控制系统公司 | Heat recovery component for waste gas system |
| CN109578121B (en) * | 2017-09-29 | 2022-03-04 | 博萨尔排放控制系统公司 | Heat recovery component for exhaust system |
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| CN113518900A (en) * | 2019-03-01 | 2021-10-19 | 彼得罗菲奥伦蒂尼有限公司 | Method for detecting the flow of gas in a main conduit and device for measuring the flow of gas in a gas conduit |
| CN113518900B (en) * | 2019-03-01 | 2024-05-14 | 彼得罗菲奥伦蒂尼有限公司 | Device for measuring the flow of a gas in a gas line |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015089657A1 (en) | 2015-06-25 |
| DE112014005714T5 (en) | 2016-09-15 |
| US20150167519A1 (en) | 2015-06-18 |
| CA2933269A1 (en) | 2015-06-25 |
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