CN106968845A - Added water fuel reforming device without catalyst low temperature using engine exhaust waste heat - Google Patents
Added water fuel reforming device without catalyst low temperature using engine exhaust waste heat Download PDFInfo
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- CN106968845A CN106968845A CN201710152856.4A CN201710152856A CN106968845A CN 106968845 A CN106968845 A CN 106968845A CN 201710152856 A CN201710152856 A CN 201710152856A CN 106968845 A CN106968845 A CN 106968845A
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- fuel
- water
- low temperature
- reformer
- engine
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 239000000446 fuel Substances 0.000 title claims abstract description 89
- 238000002407 reforming Methods 0.000 title claims abstract description 24
- 239000002918 waste heat Substances 0.000 title claims abstract description 17
- 239000003054 catalyst Substances 0.000 title claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 58
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 claims abstract description 14
- 239000008246 gaseous mixture Substances 0.000 claims abstract description 14
- 238000009834 vaporization Methods 0.000 claims abstract description 11
- 230000008016 vaporization Effects 0.000 claims abstract description 11
- 230000008676 import Effects 0.000 claims abstract description 7
- 238000013517 stratification Methods 0.000 claims abstract description 5
- 239000008240 homogeneous mixture Substances 0.000 claims abstract description 4
- 239000003546 flue gas Substances 0.000 claims description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 description 8
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 239000000295 fuel oil Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 150000001299 aldehydes Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 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
- 239000013543 active substance Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000019256 formaldehyde Nutrition 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006057 reforming reaction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000002303 thermal reforming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- 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)
Abstract
Added water fuel reforming device without catalyst low temperature using engine exhaust waste heat the invention discloses one kind, including cylinder and external low temperature add water reformer, the add water import of reformer of external low temperature is connected with air intake duct and fuel sample feeding pipe；Fuel sample feeding pipe is connected with fuel injection pump and gasifying pot, and the import of gasifying pot is connected with water sample feeding pipe；By the way that engine exhaust pipe is added water reformer and gasifying pot with winding by external low temperature, making full use of for engine exhaust waste heat is realized；Temperature is set low outside to add water in reformer, fresh air carries out low-temperature reformate with the fuel and the gaseous mixture of water after vaporization, low temperature product after reformation is entered in engine air inlet tube by reforming gas tracheae, homogeneous mixture is mixed to form with fresh air again to imported into cylinder, and realize gaseous mixture activity and concentration stratification with the fuel mixed combustion of in-cylinder direct-jet, due to catalyst need not be added in said process, so that the more energy-efficient operation of engine.
Description
Technical field
Add water the new device of fuel reforming the present invention relates to a kind of utilization engine exhaust waste heat low temperature, specific design one
The external fuel reformer low temperature kind heated using engine exhaust is added water (T<1000K) fuel reforming, by controlling this external
The boundary condition (temperature, pressure, equivalent proportion etc.) of reformer and the ratio of addition reformer reclaimed water reform the fuel into different work
The low-temperature oxidation product (aldehydes, ketone, peroxide etc.) of property, then according to actual working conditions by different activities after reformation
Low-temperature reformate gas imported into engine the apparatus system for participating in burning.
Background technology
With the continuous deterioration of global environment, the energy it is increasingly exhausted, for automobile industry, the combustion of internal combustion engine high-efficiency cleaning
Burning always is the problem of meriting attention, and the combustion mode of traditional combustion engine obviously can not meet the energy and environment
It is required that.Therefore experts and scholars conduct extensive research for combustion technology and propose some new combustion patterns both at home and abroad,
Such as homogeneity compression-ignition (HCCI), low-temperature burning (LTC) and partly-premixed combination burning (PPC).In recent years, this was new for fuel reforming
Type combustion system is gradually applied on internal combustion engine, and improves the thermal efficiency of engine, reduces discharge.And in low-temperature reformate
During, the addition of water can improve the content of hydrogen peroxide of reforming process, and this belongs to high work in engine combustion process
Property material, engine combustion can be promoted, when improving antiknock gasoline or Smaller load the problems such as ignition difficulties.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 present invention is by engine exhaust waste heat
It is combined with fuel reforming, add water thermal reforming to low temperature of the fuel progress without catalyst, it is intended to further improves engine thermal effect
Rate and reduction discharge.
The content of the invention
Add water the new device of fuel reforming the invention discloses a kind of utilization engine exhaust waste heat low temperature.Main part
By a homemade external fuel low-temperature reformate device connection engine, the wherein exhaust pipe of engine is wrapped in low-temperature reformate dress
Putting surrounding is used to heat fresh fuel to be reformed, and a certain proportion of by being added in the low-temperature reformate device into reformer
Water, the fuel after reformation mixes to imported into engine with fresh air participates in burning.Engine operates in different operating mode bars
Under part, by controlling the corresponding reforming reaction boundary condition of external reformer, different oxidation stage different activities can be discharged
Low-temperature reformate gas, in conjunction with the fuel of engine air in-cylinder injector direct-injection, it is possible to achieve gaseous mixture activity and concentration in cylinder
Layering, changes the response path of fuel oil combustion reaction, can effectively widen high-efficiency cleaning combustion range.The present invention only needs to use
Simple oxidation reaction preprocessor is that can meet the requirement of Europe VI Abgasgesetzs.
In order to solve the above-mentioned technical problem, one kind proposed by the present invention is added using engine exhaust waste heat without catalyst low temperature
Water fuel reforming device, including cylinder, an external low temperature add water reformer, air intake duct, fuel sample feeding pipe and
Water sample feeding pipe, the cylinder is connected with engine air inlet tube and engine exhaust pipe；One end of the air intake duct
With one end of the fuel sample feeding pipe the external low temperature is connected to add water the import of reformer, the air intake duct it is another
One end is connected to an air bottle, and the air intake duct is provided with gas flowmeter；The other end connection of the fuel sample feeding pipe
To a fuel injection pump, the fuel sample feeding pipe is provided with gasifying pot；One end of the water sample feeding pipe is entered with the gasifying pot
Mouth is connected, and the other end of the water sample feeding pipe is connected to a water injection pump；The add water outlet of reformer of the external low temperature passes through
Gas tracheae is reformed with the engine air inlet tube to be connected；On the reformation gas tracheae and added water reformation positioned at external low temperature is closed on
The exit of device is provided with a thermocouple；The engine exhaust pipe is provided with the first exhaust gas valve and the second exhaust gas valve, described first
Flue gas leading is located at the top of engine exhaust pipe, and second exhaust gas valve is located at the end of engine exhaust pipe；Described first gives up
The bypass of the first flue gas leading is connected out on air valve, the first flue gas leading bypass is connected and is wrapped over first exhaust gas valve
The external low temperature adds water the intervalve of the flue gas leading being connected to after reformer between first exhaust gas valve and the second exhaust gas valve
In Duan Shang, first flue gas leading bypass, bypass the external low temperature add water reformer position at be provided with a thermocouple；Institute
State and the bypass of the second flue gas leading is connected out on the second exhaust gas valve, second flue gas leading bypass is connected with second exhaust gas valve,
And be wrapped in the end that the engine exhaust pipe is connected to after the gasifying pot, the second flue gas leading bypass, bypassing
A thermocouple is provided with the position of the gasifying pot；Added water reformation by the way that engine exhaust pipe is coiled through into the external low temperature
Device and gasifying pot, realize making full use of for engine exhaust waste heat；Initial fuel is by the fuel injection pump with the uniform velocity through fuel
Sample feeding pipe is entered in gasifying pot, this moment, and water is same at the uniform velocity to be entered through water sample feeding pipe in gasifying pot by water injection pump, initially
Fuel is vaporized with water in gasifying pot, and the fuel after vaporization imported into the external low temperature and added water in reformer, at the same time,
The fresh air provided by the air bottle enters described external under the flow that gas flowmeter regulates and controls through air intake duct
Low temperature adds water in reformer, in the external low temperature adds water reformer, the mixing of fresh air and fuel and water after vaporization
Gas carries out low-temperature reformate；Low temperature product after reformation is entered in engine air inlet tube by reforming gas tracheae, again with it is fresh
Air is mixed to form homogeneous mixture and imported into the cylinder, and mixed with the fuel mixed combustion realization of in-cylinder direct-jet
Close gas activity and concentration stratification.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention propose it is a kind of added water fuel reforming device without catalyst low temperature using engine exhaust waste heat, according to starting
Machine actual condition feature, carries out low temperature to the fuel in external reformer and adds water reformation, by controlling fuel oil and air reaction
Boundary condition, the reformer discharges the partial intermediate or complete oxidation product of different oxidation stages, make its with air (or
The gaseous mixture of person EGR and air) mix, it imported into engine cylinder, in conjunction with the fuel of in-cylinder direct-jet, it is possible to achieve mixing
The high-efficiency cleaning burning of gas activity and concentration stratification Collaborative Control.The present invention adds water fuel reformation through external reformer low temperature,
Low-temperature reformate after reformation is uniformly mixed with fresh air to be imported into engine cylinder, and what is then sprayed into working cylinder is new
Fresh fuel mixed combustion, realizes fuel oil combustion oxidation reaction response path adjustable control, so as to realize high-efficiency cleaning burning
Target.
The reformation that adds water has three advantages：
(1) engine in-cylinder combustion temperature and discharge can be reduced in the addition of reforming process reclaimed water.
(2) initial fuel can improve the H/C ratios of initial mixing gas due to the addition of water, be beneficial to produce more hydrogen.
(3) due to, containing the aerobic discharge for advantageously reducing the pollutants such as soot, making burning more clean in the molecular formula of water.
(4) engine is operated under the working conditions such as different rotating speeds, load, by controlling external reformer to reform accordingly
React boundary condition, thus it is possible to vary fuel oil combustion reaction path, obtain the reformation gaseous mixture of different activities, can effectively widen height
Effect cleaning combustion range.The present invention only needs to meet Europe VI Abgasgesetzs using simple oxidation reaction preprocessor
It is required that.
Brief description of the drawings
Fig. 1 be a kind of utilization engine exhaust waste heat low temperature of the invention add water fuel reforming New device structures signal letter
Figure.
In figure：
1- engine cylinder 2- engine air inlet tubes 3- reforms gas tracheae
The external low temperature of 4- thermocouples 5- adds water reformer 6- engine exhaust pipes
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- gasifying pots
19- fuel injection pump 20- water sample feeding pipe 21- water injection pumps
22- terminal flue gas leadings
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
Only the present invention is explained for embodiment, is not intended to limit the invention.
It is proposed by the present invention it is a kind of added water fuel reforming device without catalyst low temperature using engine exhaust waste heat, realize
The low-temperature reformate of fuel, can also realize the layering of engine air in-cylinder mixture strength and active stratified combustion, and need not
Catalyst is added, while the waste heat of tail pipe exhaust has also obtained effective utilization, so that the more energy-efficient fortune of engine
OK.The present invention is added water reforming method based on engine fuel low temperature, is added water reformer and engine main body two by external low temperature
It is grouped into.
A kind of added water fuel reforming without catalyst low temperature using engine exhaust waste heat as shown in figure 1, proposed by the present invention
Device, including cylinder 1, an external low temperature add water reformer 5, air intake duct 14 and fuel sample feeding pipe 17 and water enters
Sample pipe 20, the cylinder 1 is connected with engine air inlet tube 2 and engine exhaust pipe 6；The one of the air intake duct 14
End and one end of the fuel sample feeding pipe 17 are connected to the external low temperature and added water the import of reformer 5, the air inlet
The other end of pipe 14 is connected to an air bottle 16, and the air intake duct 14 is provided with gas flowmeter 15；The fuel sample introduction
The other end of pipe 17 is connected to a fuel injection pump 19, and the fuel sample feeding pipe 17 is provided with gasifying pot 18, the water sample feeding pipe
20 one end is connected with the import of the gasifying pot 18, and the other end of the water sample feeding pipe 20 is connected to a water injection pump 21.Institute
Gasifying pot 18 is stated to vaporize the mixed fluid fuel from fuel sample feeding pipe 17 and water sample feeding pipe 20, makes it at a certain temperature
Become steam state, then imported into external low temperature and add water and carry out low-temperature reformate with fresh air in reformer 5.
The add water outlet of reformer 5 of the external low temperature is connected by reforming gas tracheae 3 with the engine air inlet tube 2；
It is described to reform on gas tracheae 3 and be provided with a thermocouple 4 positioned at the add water exit of reformer 5 of external low temperature is closed on.
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 22) 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 of the first flue gas leading bypass and first waste gas
Valve 9 is connected and is wrapped over the external low temperature and adds water after reformer 5, and the other end 12 of the first flue gas leading bypass is connected to
On the middle pipeline section 10 of flue gas leading between the exhaust gas valve 11 of first exhaust gas valve 9 and second, in the first flue gas leading bypass,
Bypass the external low temperature add water reformer 5 position at be provided with a thermocouple 8.First exhaust gas valve 9 to regulate and control into
Enter the exhausted air quantity of the first flue gas leading bypass 7, and then regulate and control external low temperature to add water the reforming temperature of reformer 5, to fuel low temperature
Reform.
The bypass of the second flue gas leading, the second flue gas leading bypass and described second are connected out on second exhaust gas valve 11
Exhaust gas valve 11 connects and is wrapped over end (the i.e. terminal flue gas leading that the engine exhaust pipe is connected to after the gasifying pot 18
22), in the second flue gas leading bypass, a thermocouple 13 is provided with the position for bypassing the gasifying pot 18.
Added water reformer 5 and gasifying pot 18 by the way that engine exhaust pipe 6 is coiled through into the external low temperature, realization is started
Machine waste gas residual heat makes full use of.The fuel injection pump 19 reforms equivalent proportion at the uniform velocity sample introduction fuel according to the rules；The water note
Pump 21 is penetrated according to suitably matching at the uniform velocity sample introduction water with fuel；The gasifying pot 18 is located on the pipeline of fuel sample feeding pipe 17, uses
With the liquid fuel to be reformed that gasifies, the wherein periphery of gasifying pot 18 is wound by engine exhaust pipe, and gasification temperature is given up by second
Air valve 11 regulates and controls；The external low temperature add water the air induction system of reformer 5 by gas flowmeter 15 regulate and control enter external low temperature
Add water the air capacity of reformer 5；The heretofore described external low temperature reformer 5 that adds water is wound by engine exhaust pipeline, temperature
Regulation and control are controlled by the first exhaust gas valve 9, and with carrying out closed loop thermal control positioned at add water thermocouple on reformer 5 of external low temperature
System；Positioned at reform gas tracheae 3 on and close on external low temperature add water the exit of reformer 5 placement a thermocouple 4 to examine
The temperature of the whole rear gaseous mixture of check weighing.
Initial fuel by the fuel injection pump 19 at the uniform velocity to be entered through fuel sample feeding pipe 17 in gasifying pot 18, this moment,
Water is same at the uniform velocity to be entered through water sample feeding pipe 20 in gasifying pot 18 by water injection pump 21, and initial fuel is entered with water in gasifying pot 18
Row vaporization, the fuel after vaporization imported into the external low temperature and added water in reformer 5, at the same time, carried by the air bottle 16
The fresh air of confession enters the external low temperature through air intake duct 14 under the flow that gas flowmeter 15 regulates and controls and added water again
In whole device 5, in the external low temperature adds water reformer 5, fresh air carries out low with the fuel and the gaseous mixture of water after vaporization
Temperature is reformed；Low temperature product after reformation is entered in engine air inlet tube 2 by reforming gas tracheae 3, mixed with fresh air again
Conjunction forms homogeneous mixture and imported into the cylinder 1, and realizes gaseous mixture with the fuel mixed combustion of in-cylinder direct-jet
Activity and concentration stratification.
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 in gasifying pot 18, and water is same at the uniform velocity to be entered through water sample feeding pipe 20 in gasifying pot 18 by water injection pump 21, just
Beginning fuel is vaporized with water in gasifying pot 18, the fuel after vaporization imported into the external low temperature add water in reformer 5 with it is new
Fresh air mixing carries out low-temperature reformate.Gas return path is moved towards：The fresh air provided by the air bottle 16 is in gas flowmeter
Entered under the flows of 15 regulation and control through air intake duct 14 the external low temperature add water in reformer 5 with the fuel and water after vaporization
Gaseous mixture carry out low-temperature reformate, in the external low temperature adds water reformer 5, the fuel after vaporization is mixed into fresh air
The penetrating moment of fuel injector control vapour internal combustion oil of cylinder in row low-temperature reformate formation low temperature product, cylinder and distributive value,
The flow control of the reformation loop and gas return path is realized by fuel injection pump 19 and gas flowmeter 15 respectively.Weight
Low temperature product after whole is entered in engine air inlet tube 2 by reforming 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.
Using apparatus of the present invention, the low-temperature oxidation that different activities can be obtained by regulating and controlling the boundary condition of reformer is produced
Thing, for example, reform PRF90 (isooctane is 9 with normal heptane volume ratio) fuel, can obtain high active substance (peroxide methane
CH3O2H, the peroxide KETs of carbonyl etc.), low activity material can also be obtained or be referred to as the material (first of suppression burning
Aldehyde CH2O, acetone CH3COCH3 etc.), and it is bright that the content rise of hydrogen peroxide H2O2 in gaseous mixture is reformed after the reformation that adds water
It is aobvious.At the same time, the utilization of engine exhaust waste heat also make it that engine integral energy is saved.
Although above in conjunction with accompanying drawing, invention has been described, and the invention is not limited in above-mentioned specific implementation
Mode, above-mentioned embodiment is only schematical, rather than restricted, and 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 the present invention's
Within protection.
Claims (1)
1. one kind is added water fuel reforming device, including cylinder (1), one using engine exhaust waste heat without catalyst low temperature
The external low temperature of platform adds water reformer (5), air intake duct (14), fuel sample feeding pipe (17) and water sample feeding pipe (20), described to start
Machine cylinder (1) is connected with engine air inlet tube (2) and engine exhaust pipe (6)；One end of the air intake duct (14) and institute
The one end for stating fuel sample feeding pipe (17) is connected to the external low temperature and added water the imports of reformer (5), the air intake duct
(14) the other end is connected to an air bottle (16), and the air intake duct (14) is provided with gas flowmeter (15)；The combustion
The other end of material sample feeding pipe (17) is connected to a fuel injection pump (19), and the fuel sample feeding pipe (17) is provided with gasifying pot
(18)；One end of the water sample feeding pipe (20) is connected with the import of the gasifying pot (18), the water sample feeding pipe (20) it is another
End is connected to a water injection pump (21)；The external low temperature add water reformer (5) outlet by reform gas tracheae (3) with it is described
Engine air inlet tube (2) is connected；It is described to reform on gas tracheae (3) and added water the outlets of reformer (5) positioned at external low temperature is closed on
Place is provided with a thermocouple (4)；
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 located at the end of engine exhaust pipe；
The bypass of the first flue gas leading is connected out on first exhaust gas valve (9), the first flue gas leading bypass is given up with described first
Air valve (9), which connects and is wrapped over the external low temperature and adds water, is connected to first exhaust gas valve (9) and second after reformer (5)
On the middle pipeline section (10) of flue gas leading between exhaust gas valve (11), in the first flue gas leading bypass, set low bypassing outside described
Temperature add water reformer (5) position at be provided with a thermocouple (8)；
The bypass of the second flue gas leading is connected out on second exhaust gas valve (11), the second flue gas leading bypass is given up with described second
Air valve (11) connects and is wrapped over the end that the engine exhaust pipe is connected to after the gasifying pot (18), and described second gives up
In tracheae bypass, a thermocouple (13) is provided with the position for bypassing the gasifying pot (18)；
Added water reformer (5) and gasifying pot (18) by the way that engine exhaust pipe (6) is coiled through into the external low temperature, realize hair
Motivation waste gas residual heat makes full use of；
Initial fuel by the fuel injection pump (19) at the uniform velocity to be entered through fuel sample feeding pipe (17) in gasifying pot (18), this
Carve, water is same at the uniform velocity to be entered through water sample feeding pipe (20) in gasifying pot (18) by water injection pump (21), and initial fuel exists with water
Gasifying pot (18) is vaporized, and the fuel after vaporization imported into the external low temperature and added water in reformer (5), at the same time, by
The fresh air that the air bottle (16) provides enters under the flow that gas flowmeter (15) regulates and controls through air intake duct (14)
In adding water reformer (5) to the external low temperature, in the external low temperature adds water reformer (5), after fresh air and vaporization
Fuel and water gaseous mixture carry out low-temperature reformate；Low temperature product after reformation enters engine by reforming gas tracheae (3)
In air inlet pipe (2), homogeneous mixture is mixed to form with fresh air again and is imported into the cylinder (1), and and cylinder
Gaseous mixture activity and concentration stratification are realized in the fuel mixed combustion of interior direct-injection.
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| CN201710152856.4A CN106968845A (en) | 2017-03-14 | 2017-03-14 | Added water fuel reforming device without catalyst low temperature using engine exhaust waste heat |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111662747A (en) * | 2020-05-14 | 2020-09-15 | 天津大学 | Vehicle-mounted waste gas diesel reformer for improving thermal oxidation coking problem |
| CN112012854A (en) * | 2020-08-31 | 2020-12-01 | 天津大学 | Engine combustion system for renewable hydrogen storage fuel |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111662747A (en) * | 2020-05-14 | 2020-09-15 | 天津大学 | Vehicle-mounted waste gas diesel reformer for improving thermal oxidation coking problem |
| CN111662747B (en) * | 2020-05-14 | 2021-06-08 | 天津大学 | Vehicle-mounted waste gas diesel reformer for improving thermal oxidation coking problem |
| 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 |
| 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 |
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Application publication date: 20170721 |