CN106704048A - Device for reforming fuel at low temperature through exhaust gas residual heat of engine - Google Patents
Device for reforming fuel at low temperature through exhaust gas residual heat of engine Download PDFInfo
- Publication number
- CN106704048A CN106704048A CN201710148760.0A CN201710148760A CN106704048A CN 106704048 A CN106704048 A CN 106704048A CN 201710148760 A CN201710148760 A CN 201710148760A CN 106704048 A CN106704048 A CN 106704048A
- Authority
- CN
- China
- Prior art keywords
- fuel
- engine
- gas
- temperature
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 138
- 238000002407 reforming Methods 0.000 title abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 238000009834 vaporization Methods 0.000 claims abstract description 9
- 230000008016 vaporization Effects 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 53
- 239000003546 flue gas Substances 0.000 claims description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 27
- 238000002485 combustion reaction Methods 0.000 claims description 25
- 239000002918 waste heat Substances 0.000 claims description 17
- 239000008246 gaseous mixture Substances 0.000 claims description 13
- 238000013517 stratification Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 239000008240 homogeneous mixture Substances 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 239000013067 intermediate product Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 150000002978 peroxides Chemical class 0.000 description 4
- 150000001299 aldehydes Chemical class 0.000 description 3
- 230000008450 motivation Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019256 formaldehyde Nutrition 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000006057 reforming reaction Methods 0.000 description 2
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 1
- 241000486406 Trachea Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
- F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
- F02D19/0668—Treating or cleaning means; Fuel filters
- F02D19/0671—Means to generate or modify a fuel, e.g. reformers, electrolytic cells or membranes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/16—Other apparatus for heating fuel
- F02M31/18—Other apparatus for heating fuel to vaporise fuel
-
- 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
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses a device for reforming fuel at low temperature through exhaust gas residual heat of an engine. The device comprises an engine cylinder and an externally-arranged low-temperature fuel reformer, an air inlet pipe and a fuel sample injection pipe are connected to an inlet of the externally-arranged low-temperature fuel reformer, and the air inlet pipe is provided with a gas flowermeter; a fuel injection pump and a fuel vaporization tank are connected to the fuel sample injection pipe, and an outlet of the externally-arranged low-temperature fuel reformer is provided with a thermocouple and connected with an engine gas inlet pipe through a reforming gas pipe. According to the device, full utilization of the exhaust gas residual heat of the engine is achieved by winding an engine exhaust gas pipe around the externally-arranged low-temperature fuel reformer and the fuel vaporization tank; a low-temperature product obtained after reforming enters the engine gas inlet pipe through the reforming gas pipe and is mixed with fresh air again to form uniform mixed gas, the uniform mixed gas is introduced into the engine cylinder and burnt with fuel directly sprayed in the cylinder in a mixed mode, mixed gas activity and concentration layering is achieved, and due to the fact that a catalyst does not need to be added in the process, the engine can run more efficiently in a better energy-saving mode.
Description
Technical field
The present invention relates to a kind of new device of utilization engine exhaust waste heat low-temperature reformate fuel, a kind of profit of specific design
The external fuel reformer low temperature (T heated with engine exhaust<1000K) fuel reforming, by controlling the external reformer
Boundary condition (temperature, pressure, equivalent proportion etc.) reforms the fuel into low-temperature oxidation product (aldehydes, ketone, the peroxide of different activities
Compound etc.), the low-temperature reformate gas of different activities after reformation is imported into engine according to actual working conditions then and participates in combustion
The apparatus system of burning.
Background technology
Current internal combustion engine remains unchanged and occupies absolute leading position in communications and transportation, however as the gradually withered of the energy in recent years
Exhaust, the deterioration increasingly of environment, the combustion mode of traditional combustion engine obviously can not meet the requirement of the energy and environment.Therefore
For internal combustion engine, domestic and international experts and scholars conduct extensive research for combustion technology and propose some new combustion moulds
Formula, such as homogeneity compression-ignition (HCCI), low-temperature burning (LTC) and partly-premixed combination burning (PPC).In recent years, fuel reforming this
One new combustion mode is gradually applied on internal combustion engine, and improves the thermal efficiency of engine, reduces discharge.It is same with this
When, the utilization of engine exhaust waste heat has also caused the attention of domestic and international experts and scholars.
The content of the invention
With fuel reforming be combined engine exhaust waste heat by the present invention, and the low temperature thermogravimetric without catalyst is carried out to fuel
It is whole, it is intended to further to improve engine thermal efficiency and reduce discharge.It is low using engine exhaust waste heat the invention discloses one kind
The new device of warm fuel reforming.A homemade external fuel low-temperature reformate device is connected engine by main part, wherein
The exhaust pipe of engine is wrapped in the low-temperature reformate device surrounding for heating fresh fuel to be reformed, the fuel after reformation with it is new
Fresh air mixing participates in burning in importeding into engine.Engine is operated under different working conditions, external heavy by controlling
The whole corresponding reforming reaction boundary condition of device, can discharge the low-temperature reformate gas of different oxidation stage different activities, in conjunction with hair
The fuel of motivation cylinder injector direct-injection, it is possible to achieve gaseous mixture activity and the layering of concentration in cylinder, changes fuel oil burning anti-
The response path answered, can effectively widen high-efficiency cleaning combustion range.The present invention only needs to locate using after simple oxidation reaction
Reason device can meet the requirement of Europe VI Abgasgesetzs.
In order to solve the above-mentioned technical problem, a kind of utilization engine exhaust waste heat low-temperature reformate fuel proposed by the present invention
Device, including cylinder, external low temp fuel reformer, air intake duct and a fuel sample feeding pipe, the engine
Cylinder is connected with engine air inlet tube and engine exhaust pipe;One end of the air intake duct and the one of the fuel sample feeding pipe
End is connected to the import of the external low temp fuel reformer, and the other end of the air intake duct is connected to an air bottle,
The air intake duct is provided with gas flowmeter;The other end of the fuel sample feeding pipe is connected to a fuel injection pump, described
Fuel sample feeding pipe is provided with carburretion tank;The outlet of the external low temp fuel reformer passes through reformation gas tracheae and the hair
Motivation air inlet pipe is connected;A heat is provided with the reformation gas tracheae and positioned at the exit for closing on external low temp fuel reformer
Galvanic couple;The engine exhaust pipe is provided with the first exhaust gas valve and the second exhaust gas valve, and first exhaust gas valve is useless positioned at engine
The top of tracheae, second exhaust gas valve is located at the end of engine exhaust pipe;First is connected out on first exhaust gas valve
Flue gas leading is bypassed, and the first flue gas leading bypass is connected with first exhaust gas valve and is wrapped over the external low temp fuel weight
On the middle pipeline section of the flue gas leading being connected to after whole device between first exhaust gas valve and the second exhaust gas valve, first flue gas leading
In bypass, a thermocouple is provided with the position for bypassing the external low temp fuel reformer;Connected on second exhaust gas valve
There is the second flue gas leading to bypass, the second flue gas leading bypass is connected with second exhaust gas valve and is wrapped over the carburretion
The end of the engine exhaust pipe is connected to after tank, in the second flue gas leading bypass, the carburretion tank is being bypassed
A thermocouple is provided with position;The external low temp fuel reformer and carburretion are coiled through by by engine exhaust pipe
Tank, realizes making full use of for engine exhaust waste heat;Initial fuel is by the fuel injection pump at the uniform velocity entering through fuel sample feeding pipe
Enter in carburretion tank and be vaporized, the fuel after vaporization is imported into the external low temp fuel reformer, at the same time,
The fresh air provided by the air bottle enters into described external under the flow that gas flowmeter regulates and controls through air intake duct
In low temp fuel reformer, in the external low temp fuel reformer, the fuel after vaporization mix with fresh air carry out it is low
Temperature is reformed and forms low temperature product;Low temperature product after reformation is entered into engine air inlet tube by reformation gas tracheae, again with
Fresh air is mixed to form homogeneous mixture and imported into the cylinder, and with the fuel mixed combustion reality of in-cylinder direct-jet
Existing gaseous mixture activity and concentration stratification.
Compared with prior art, the beneficial effects of the invention are as follows:
The present invention proposes a kind of new device system of the utilization engine exhaust waste heat without catalyst low-temperature reformate fuel, root
According to engine actual condition feature, low-temperature reformate is carried out to the fuel in external reformer, by controlling fuel oil and air reaction
Boundary condition, the reformer discharges the partial intermediate or complete oxidation product of different oxidation stages, makes itself and air
(or gaseous mixture of EGR and air) mixes, and imported into engine cylinder, in conjunction with the fuel of in-cylinder direct-jet, it is possible to achieve
The high-efficiency cleaning burning of gaseous mixture activity and concentration stratification Collaborative Control.The present invention by fuel through external reformer low-temperature reformate,
Low-temperature reformate after reformation uniformly mixes with fresh air and imported into engine cylinder, then new with what working cylinder was sprayed into
Fresh fuel mixed combustion, realizes fuel oil combustion oxidation reaction response path adjustable control, so as to realize high-efficiency cleaning burning
Target.Engine is operated under the working conditions such as different rotating speeds, load, by controlling the corresponding reforming reaction side of external reformer
Boundary's condition, thus it is possible to vary fuel oil combustion reaction response path, obtains the reformation gaseous mixture of different activities, can effectively widen efficiently
Cleaning combustion range.The present invention only needs to meet wanting for Europe VI Abgasgesetzs using simple oxidation reaction preprocessor
Ask.
Brief description of the drawings
Fig. 1 is a kind of apparatus structure simplified schematic diagram of utilization engine exhaust waste heat low-temperature reformate fuel of the invention.
In figure:
1- engine cylinder 2- engine air inlet tube 3- reformation gas tracheaes
The external low temp fuel reformer 6- engine exhaust pipes of 4- thermocouples 5-
7- flue gas leading branch road 8- thermocouples the first exhaust gas valves of 9-
Middle the second exhaust gas valves of pipeline section 11- 12- flue gas leading branch roads of 10- flue gas leadings
13- thermocouple 14- air intake duct 15- gas flowmeters
16- air bottle 17- fuel sample feeding pipe 18- fuel gasifying tanks
19- fuel injection pump 20- terminal flue gas leadings
Specific embodiment
Technical solution of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, described is specific
Embodiment is only explained to the present invention, is not intended to limit the invention.
A kind of device of utilization engine exhaust waste heat low-temperature reformate fuel proposed by the present invention realizes the low temperature of fuel
Reform, it is also possible to realize the layering of engine air in-cylinder mixture strength and active stratified combustion, and catalyst need not be added,
The waste heat of tail pipe exhaust has also obtained effective utilization simultaneously, so that the more energy-efficient operation of engine.Base of the present invention
In engine fuel low-temperature reformate method, it is made up of external low temp fuel reformer and engine main body two parts.
As shown in figure 1, a kind of device of utilization engine exhaust waste heat low-temperature reformate fuel proposed by the present invention, including hair
Motivation cylinder 1, external low temp fuel reformer 5, air intake duct 14 and a fuel sample feeding pipe 17, the cylinder 1
It is connected with engine air inlet tube 2 and engine exhaust pipe 6;One end of the air intake duct 14 and the fuel sample feeding pipe 17
One end is connected to the import of the external low temp fuel reformer 5, and the other end of the air intake duct 14 is connected to
Gas cylinder 16, the air intake duct 14 is provided with gas flowmeter 15;The other end of the fuel sample feeding pipe 17 is connected to a combustion
Material syringe pump 19, the fuel sample feeding pipe 17 is provided with carburretion tank 18, and the carburretion tank 18 is used to vaporize and carrys out spontaneous combustion
Expect the liquid fuel of sample feeding pipe 17, it is become steam state at a certain temperature, then imported into external low temp fuel reformer 5 with
Fresh air carries out low-temperature reformate.
The outlet of the external low temp fuel reformer 5 is connected by reformation gas tracheae 3 with the engine air inlet tube 2;
A thermocouple 4 is provided with the reformation gas tracheae 3 and positioned at the exit for closing on external low temp fuel reformer 5.
The engine exhaust pipe 6 is provided with the first exhaust gas valve 9 and the second exhaust gas valve 11, and first flue gas leading 9 is located at
The top of engine exhaust pipe, second exhaust gas valve 11 is located at the end (i.e. terminal flue gas leading 20) of engine exhaust pipe.Institute
State and the bypass of the first flue gas leading is connected out on the first exhaust gas valve 9, one end 7 and first waste gas that first flue gas leading is bypassed
After valve 9 is connected and is wrapped over the external low temp fuel reformer 5, the other end 12 of the first flue gas leading bypass is connected to
On the middle pipeline section 10 of the flue gas leading between the exhaust gas valve 11 of first exhaust gas valve 9 and second, in the first flue gas leading bypass,
A thermocouple 8 is provided with the position for bypassing the external low temp fuel reformer 5.First exhaust gas valve 9 be used to regulate and control into
Enter the exhausted air quantity of the first flue gas leading bypass 7, and then regulate and control the reforming temperature of external low temp fuel reformer 5, to fuel low temperature
Reform.
The bypass of the second flue gas leading is connected with second exhaust gas valve 11, the second flue gas leading bypass is useless with described second
Air valve 11 connects and is wrapped over after the carburretion tank 18 end (the i.e. terminal waste gas for being connected to the engine exhaust pipe
Pipe 20), in the second flue gas leading bypass, a thermocouple 13 is provided with the position for bypassing the carburretion tank 18.
The external low temp fuel reformer 5 and carburretion tank 18 are coiled through by by engine exhaust pipe 6, is realized
Engine exhaust waste heat makes full use of.The reformation equivalent proportion at the uniform velocity sample introduction fuel according to the rules of the fuel injection pump 19;It is described
Fuel gasifying tank 18 is located on the pipeline of fuel sample feeding pipe 17, is used to gasify liquid fuel to be reformed, wherein fuel gasifying tank
18 periphery is wound by engine exhaust pipe, and gasification temperature is regulated and controled by the second exhaust gas valve 11;The external low temp fuel reformer 5
Air induction system is regulated and controled to enter the air capacity of external low temp fuel reformer 5 by gas flowmeter 15;It is heretofore described outer
Set low warm fuel reformer 5 to be wound by engine exhaust pipeline, temperature adjusting is controlled by the first exhaust gas valve 9, and with positioned at outer
The thermocouple set low on warm fuel reformer 5 carries out closed loop thermal control;On reformation gas tracheae 3 and closing on external low temperature
The thermocouple 4 that the exit of fuel reformer 5 is laid be used to detect reform after gaseous mixture temperature.
The reformation loop trend formed in the present invention:Initial fuel is by the fuel injection pump 19 with the uniform velocity through fuel sample introduction
Pipe 17 is entered into and is vaporized in carburretion tank 18, and the fuel after vaporization is imported into the external low temp fuel reformer 5
Mixing with fresh air carries out low-temperature reformate.The gas return path trend:The fresh air provided by the air bottle 16 is in gas
Flowmeter body 15 regulation and control flow under through air intake duct 14 enter into the external low temp fuel reformer 5 with vaporization after
Fuel mixing carries out low-temperature reformate, and in the external low temp fuel reformer 5, the fuel after vaporization is mixed into fresh air
Row low-temperature reformate forms low temperature product, and the fuel injector in cylinder controls penetrating moment and the distributive value of vapour internal combustion oil of cylinder,
The flow control of the reformation loop and gas return path is realized by fuel injection pump 19 and gas flowmeter 15.Weight
Low temperature product after whole is entered into engine air inlet tube 2 by reformation gas tracheae 3, is mixed to form uniformly with fresh air again
Gaseous mixture is imported into the cylinder 1, and realizes gaseous mixture activity and concentration with the fuel mixed combustion of in-cylinder direct-jet
Layering.
In the present invention, using external low temp fuel reformer 5, difference can be obtained by the boundary condition for regulating and controlling reformer
The low-temperature oxidation product of activity, such as reformation PRF90 (isooctane is 9 with normal heptane volume ratio) fuel, can obtain high activity
Material (peroxide methane CH3O2H, the peroxide KETs of carbonyl etc.), it is also possible to obtain low activity material or be referred to as suppressing
The material (formaldehyde CH2O, acetone CH3COCH3 etc.) of burning.Therefore can be passed through according to engine actual working conditions demand
The oxidation active needed for gaseous mixture therein is reformatted into of boundary condition (temperature, pressure, equivalent proportion etc.) in regulation and control reformer
Stage product, then mix with fresh air imported into engine cylinder participate in burner make.Substantial low-temperature reformate
Importing changes the chemical reaction path of engine cylinder fuel consumption, and then have impact on the burning work in engine cylinder
Process.At the same time, the utilization of engine exhaust waste heat also causes that engine integral energy is saved.
Worked under following several operating modes using the device of utilization engine exhaust waste heat low-temperature reformate fuel of the invention
When performance:
Low speed small load condition condition is in for low activity fuel or engine, controls the external low temp fuel to reform
The boundary condition (temperature, pressure, equivalent proportion etc.) of system makes the fuel in reformer change into the low-temperature reformate of high activity,
It imported into engine cylinder, in conjunction with the fresh fuel of engine in-cylinder direct-jet, realizes mixture strength and active stratified combustion.
Because high mars free radical material igniting delay period is short, it is easier to light a fire, interacted with working cylinder direct in-cylinder fuel, promoted
Igniting, it is ensured that the stability burnt under the conditions of low speed Smaller load, so as to extend Smaller load operation area.
It is under the working condition of big load/at full capacity for high activity fuel or engine, equally regulates and controls external reformation
The boundary condition of device, the fuel low-temperature reformate in reformer into the reformate (aldehydes, acetone etc.) of low activity then is imported
Burning is participated in engine cylinder.Because the gaseous mixture activity after low-temperature reformate is reduced, ignition time delay is long, by with work
The mixing of cylinder direct injection high activity fuel realizes that gaseous mixture activity couples the high-efficiency cleaning burning of control with concentration.
To sum up, proposed by the present invention produced according to engine actual working conditions using a set of external low-temperature reformate system
The low-temperature reformate of different oxidation stages, and the reforming system not extra catalyst.Present invention fuel weight corresponding to other
The maximum difference of adjusting technique scheme is that according to different duty requirements, by reformation oxidation reaction Boundary Condition Control,
The intermediate product in different reforming oxygenated stages is obtained, peroxide, aldehyde, ketone, CO, H2 intermediate product is such as produced.Fuel is through weight
Whole rear intermediate product activity is reduced, and the intermediate product of different oxidation stages forms chemism not after mixing with fresh air again
With different gaseous mixtures, and the fuel sprayed into working cylinder carries out combustion reaction again, so as to realize activity only with single-fuel
The high-efficiency cleaning combustion mode controlled with concentration stratification, it is achieved thereby that combustion reaction path adjustable control.
Although above in conjunction with accompanying drawing, invention has been described, the invention is not limited in above-mentioned specific implementation
Mode, above-mentioned specific embodiment is only schematical, and rather than restricted, one of ordinary skill in the art is at this
Under the enlightenment of invention, without deviating from the spirit of the invention, many variations can also be made, these belong to of the invention
Within protection.
Claims (1)
1. a kind of device of utilization engine exhaust waste heat low-temperature reformate fuel, including cylinder (1), an external low temperature
Fuel reformer (5), air intake duct (14) and fuel sample feeding pipe (17), the cylinder (1) are connected with engine and enter
Tracheae (2) and engine exhaust pipe (6);One end of the air intake duct (14) and one end of the fuel sample feeding pipe (17) are equal
The import of the external low temp fuel reformer (5) is connected to, the other end of the air intake duct (14) is connected to an air
Bottle (16), the air intake duct (14) is provided with gas flowmeter (15);The other end connection of the fuel sample feeding pipe (17)
To a fuel injection pump (19), the fuel sample feeding pipe (17) is provided with carburretion tank (18);The external low temp fuel weight
The outlet of whole device (5) is connected by reformation gas tracheae (3) with the engine air inlet tube (2);On the reformation gas tracheae (3),
And it is provided with a thermocouple (4) positioned at the exit for closing on external low temp fuel reformer (5);It is characterized in that:
The engine exhaust pipe (6) is provided with the first exhaust gas valve (9) and the second exhaust gas valve (11), first flue gas leading (9)
Positioned at the top of engine exhaust pipe, second exhaust gas valve (11) is positioned at the end of engine exhaust pipe;
The bypass of the first flue gas leading, the first flue gas leading bypass and first waste gas are connected with first exhaust gas valve (9)
Valve (9) is connected and is wrapped over after the external low temp fuel reformer (5) and is connected to first exhaust gas valve (9) and second and gives up
On the middle pipeline section (10) of the flue gas leading between air valve (11), in the first flue gas leading bypass, the external low temperature is being bypassed
A thermocouple (8) is provided with the position of fuel reformer (5);
The bypass of the second flue gas leading is connected out on second exhaust gas valve (11), the second flue gas leading bypass is useless with described second
Air valve (11) connects and is wrapped over after the carburretion tank (18) end for being connected to the engine exhaust pipe, and described the
In the bypass of two flue gas leadings, a thermocouple (13) is provided with the position for bypassing the carburretion tank (18);
The external low temp fuel reformer (5) and carburretion tank (18) are coiled through by by engine exhaust pipe (6), it is real
Show making full use of for engine exhaust waste heat;
Initial fuel is by the fuel injection pump (19) at the uniform velocity being entered into carburretion tank (18) through fuel sample feeding pipe (17)
It is vaporized, the fuel after vaporization is imported into the external low temp fuel reformer (5), at the same time, by the air bottle
(16) fresh air for providing enters into described external under the flow that gas flowmeter (15) regulates and controls through air intake duct (14)
In low temp fuel reformer (5), in the external low temp fuel reformer (5), the fuel after vaporization mixes with fresh air
Carry out low-temperature reformate and form low temperature product;Low temperature product after reformation enters into engine air inlet tube by reformation gas tracheae (3)
(2) in, homogeneous mixture is mixed to form with fresh air again and is imported into the cylinder (1), and and in-cylinder direct-jet
Fuel mixed combustion realize gaseous mixture activity and concentration stratification.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710148760.0A CN106704048A (en) | 2017-03-14 | 2017-03-14 | Device for reforming fuel at low temperature through exhaust gas residual heat of engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710148760.0A CN106704048A (en) | 2017-03-14 | 2017-03-14 | Device for reforming fuel at low temperature through exhaust gas residual heat of engine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106704048A true CN106704048A (en) | 2017-05-24 |
Family
ID=58918178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710148760.0A Pending CN106704048A (en) | 2017-03-14 | 2017-03-14 | Device for reforming fuel at low temperature through exhaust gas residual heat of engine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106704048A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111997796A (en) * | 2020-08-31 | 2020-11-27 | 天津大学 | Engine fuel reforming system based on low-temperature cold flame reforming |
CN112012854A (en) * | 2020-08-31 | 2020-12-01 | 天津大学 | Engine combustion system for renewable hydrogen storage fuel |
CN114810436A (en) * | 2021-01-22 | 2022-07-29 | 本田技研工业株式会社 | Fuel reforming device |
CN114893330A (en) * | 2022-05-20 | 2022-08-12 | 哈尔滨工程大学 | External fuel pretreatment device, engine system and control method thereof |
CN115306603A (en) * | 2022-07-31 | 2022-11-08 | 哈尔滨工程大学 | Fuel low-temperature reforming device and reformed gas control method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08291774A (en) * | 1995-04-19 | 1996-11-05 | Isuzu Ceramics Kenkyusho:Kk | Alcohol reformed gas engine |
JP2003097306A (en) * | 2001-09-19 | 2003-04-03 | Nissan Motor Co Ltd | Reformed gas engine |
US20080110419A1 (en) * | 2005-08-03 | 2008-05-15 | Toyota Jidosha Kabushiki Kaisha | Internal Combustion Engine and Starting Control Device of Internal Combustion Engine |
CN105822409A (en) * | 2016-05-11 | 2016-08-03 | 王东亮 | Automobile capable of producing hydrogen fuel by reforming ethyl alcohol water vapor through automobile exhaust waste heat |
CN206647189U (en) * | 2017-03-14 | 2017-11-17 | 天津大学 | A kind of device using engine exhaust waste heat low-temperature reformate fuel |
-
2017
- 2017-03-14 CN CN201710148760.0A patent/CN106704048A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08291774A (en) * | 1995-04-19 | 1996-11-05 | Isuzu Ceramics Kenkyusho:Kk | Alcohol reformed gas engine |
JP2003097306A (en) * | 2001-09-19 | 2003-04-03 | Nissan Motor Co Ltd | Reformed gas engine |
US20080110419A1 (en) * | 2005-08-03 | 2008-05-15 | Toyota Jidosha Kabushiki Kaisha | Internal Combustion Engine and Starting Control Device of Internal Combustion Engine |
CN105822409A (en) * | 2016-05-11 | 2016-08-03 | 王东亮 | Automobile capable of producing hydrogen fuel by reforming ethyl alcohol water vapor through automobile exhaust waste heat |
CN206647189U (en) * | 2017-03-14 | 2017-11-17 | 天津大学 | A kind of device using engine exhaust waste heat low-temperature reformate fuel |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111997796A (en) * | 2020-08-31 | 2020-11-27 | 天津大学 | Engine fuel reforming system based on low-temperature cold flame reforming |
CN112012854A (en) * | 2020-08-31 | 2020-12-01 | 天津大学 | Engine combustion system for renewable hydrogen storage fuel |
CN112012854B (en) * | 2020-08-31 | 2022-08-05 | 天津大学 | Engine combustion system for renewable hydrogen storage fuel |
CN114810436A (en) * | 2021-01-22 | 2022-07-29 | 本田技研工业株式会社 | Fuel reforming device |
CN114810436B (en) * | 2021-01-22 | 2023-08-01 | 本田技研工业株式会社 | Fuel reforming device |
CN114893330A (en) * | 2022-05-20 | 2022-08-12 | 哈尔滨工程大学 | External fuel pretreatment device, engine system and control method thereof |
CN115306603A (en) * | 2022-07-31 | 2022-11-08 | 哈尔滨工程大学 | Fuel low-temperature reforming device and reformed gas control method thereof |
CN115306603B (en) * | 2022-07-31 | 2023-12-22 | 哈尔滨工程大学 | Fuel low-temperature reforming device and reformed gas control method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN106704048A (en) | Device for reforming fuel at low temperature through exhaust gas residual heat of engine | |
CN105143637B (en) | Utilize the multi fuel streaming system and method for the recycling of special waste gas | |
CN106014694B (en) | Air assisted gas injector, large-diameter gas machine precombustion chamber combustion system and method | |
CN105134373B (en) | Based on the regulatable engine in combustion reaction path and its regulation and control method | |
CN105649828B (en) | Application method on alcohols hydrogen production from catalytic pyrolysis device and its liquid fuel within automobile | |
WO1998004817A1 (en) | Internal combustion engine | |
CN101718224A (en) | Compression-ignition methanol engine and control method thereof | |
CN106837619B (en) | Combine the low temp fuel reformer of external reformer based on engine | |
CN206647189U (en) | A kind of device using engine exhaust waste heat low-temperature reformate fuel | |
CN104989539A (en) | Internal combustion engine for direct injection of double-gas fuel in cylinder under EGR condition and control method | |
CN110318892A (en) | A kind of ethanol vapor/Diesel Dual-Fuel Engine Multi-mode combustion method for organizing | |
CN111197532A (en) | Hydrogen/methanol composite fuel engine | |
CN106968845A (en) | Added water fuel reforming device without catalyst low temperature using engine exhaust waste heat | |
CN111305947A (en) | Methanol and hydrogen dual-fuel power system | |
CN111156111A (en) | Methanol engine capable of improving heat efficiency | |
CN112012854B (en) | Engine combustion system for renewable hydrogen storage fuel | |
CN111520258B (en) | Compression ignition type methanol engine combustion system and control method | |
CN111102068B (en) | Engine lean combustion device, control method, engine and automobile | |
CN206647188U (en) | Add water fuel reforming device without catalyst low temperature using engine exhaust waste heat | |
CN208907380U (en) | Engine underpressure burner, engine and automobile | |
CN204961094U (en) | Two gaseous fuel's of direct injection internal -combustion engine under EGR condition | |
CN115653748A (en) | Methanol and natural gas dual-fuel engine and control method | |
CN106870216B (en) | Engine combines external reformer and adds water apparatus for reforming of fuel without catalyst low temperature | |
CN204921157U (en) | New ideas engine based on reaction of combustion route can be regulated and control | |
WO2021217601A1 (en) | Compression-ignition type methanol engine combustion system and control method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |