CN107667210A - Buner system - Google Patents
Buner system Download PDFInfo
- Publication number
- CN107667210A CN107667210A CN201580080514.5A CN201580080514A CN107667210A CN 107667210 A CN107667210 A CN 107667210A CN 201580080514 A CN201580080514 A CN 201580080514A CN 107667210 A CN107667210 A CN 107667210A
- Authority
- CN
- China
- Prior art keywords
- waste gas
- reducing agent
- region
- burner body
- fuel injection
- 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.)
- Granted
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Classifications
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2006—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
- F01N3/2033—Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using a fuel burner or introducing fuel into exhaust duct
-
- 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
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N2240/14—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 fuel burner
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Embodiments of the invention are related to a kind of buner system, and it makes the waste gas heating in engine discharge, it includes to be used in reducing agent thermal decomposition：Burner body, its region for including making waste gas heat up, another region mixed for the reducing agent for being exhaust gases with and being thermal decomposited in a region, it is formed at the outlet port that waste gas inflow entrance of the region adjacent with another region for waste gas inflow and the waste gas for use by another region are discharged；Fuel injection component, it is arranged at the side of the burner body, to an area spray fuel of the burner body；Next door, it is arranged at the inner side in a region of the burner body, and the waste gas from the waste gas inflow entrance inflow of the burner body is moved to the fuel injection component；And reducing agent injecting-unit, it is to the next door internal spray reducing agent.
Description
Technical field
Embodiments of the invention are related to a kind of buner system, more particularly to a kind of in order to be used in reducing agent thermal decomposition,
Make the buner system in the waste gas heating of engine discharge.
Background technology
Engine produces power by burning fuel.This waste gas in engine discharge includes oxynitrides.
Oxynitrides produces harmful influence to human body when being discharged to outside, thus the object of regulation for being considered discharge gas carrys out pipe
Reason.
Therefore, the device for being provided with engine possesses the nitrogen oxidation conjunction included for the waste gas purified in engine discharge
The other waste gas purification apparatus of thing.
Generally, waste gas purification apparatus is to the exhaust blast urea water (Urea) discharged in engine, and makes the urine sprayed
Plain water and waste gas flow into inside reactor.That is, the urea water sprayed is broken down into isocyanic acid and ammonia using the temperature of waste gas,
And flow into reactor.In addition, oxynitrides can be reduced in nitrogen and water (or vapor) by being provided with inside reactor
Catalyst.
Therefore, the reducing agent of reactor is flowed into by injection and mixed waste gas by catalyst and is being decomposed into nitrogen and water
And to during the discharge of outside, discharge the waste gas being cleaned.
However, in the case where the temperature of waste gas is low, the temperature only with waste gas be difficult to by urea water be decomposed into isocyanic acid and
Ammonia.In this case, by being possible to include ammonia in the waste gas of reactor, thus exist and human body is produced when being discharged to outside
The problem of harmful influence.
In addition, if the heating urea water at a high temperature of fully, presence do not produce deposit (Deposit) and are deposited on
The problem of reactor or pipeline.
The content of the invention
Technical problem
Embodiments of the invention provide a kind of buner system that effectively can be thermally decomposed to reducing agent.
Technical scheme
It is according to an embodiment of the invention to be thermally decomposed to be used in reducing agent, make what the waste gas in engine discharge heated up
Buner system includes：Burner body, it includes making region that waste gas heats up, for being exhaust gases with a region
Another region with the reducing agent mixing that is thermal decomposited, it is formed at a region adjacent with another region and supplies waste gas stream
The waste gas inflow entrance entered and the outlet port of the waste gas discharge for use by another region；Fuel injection component, it sets
The side of the burner body is placed in, to an area spray fuel of the burner body；Next door, it is arranged at described
The inner side in one region of burner body, and make from the waste gas of the waste gas inflow entrance inflow of the burner body to the fuel
Injecting-unit moves；And reducing agent injecting-unit, it is to the next door internal spray reducing agent.
In addition, said burner system can also include：Blade, it is arranged at another area inside, logical to mix
Cross the reducing agent being thermal decomposited and waste gas in another region.
In addition, the burner body can also include new air flow inlet, it is formed at the side of the burner body
To supply new gas, to make the fuel combustion in the fuel injection supplied by the fuel injection component.
In addition, the reducing agent injecting-unit can be configured between the new air flow inlet and the waste gas inflow entrance.
In addition, said burner system can also include cyclone (Swirler), it is arranged at a region, can
Adjust the length of the flame as caused by the fuel sprayed in the fuel injection component.
In addition, said burner system can also include：Fire defector part, it detects the flame temperature in a region
Degree；And control unit, it controls the reducing agent to spray based on the flame temperature information detected in the fire defector part
The action of part.
The effect of invention
According to an embodiment of the invention, buner system can be thermally decomposed effectively to reducing agent.
Brief description of the drawings
Fig. 1 shows the section of the buner system of one embodiment of the invention.
Fig. 2 shows Fig. 1 cyclone.
Fig. 3 shows Fig. 1 action process.
Embodiment
Embodiments of the invention are described in detail with reference to the accompanying drawings, so that those skilled in the art can be easy
Implement the present invention.The present invention can be realized with a variety of different shapes, however it is not limited to embodiment illustrated here.
It should be noted that accompanying drawing is schematically, do not illustrated according to reduced scale.Clarity for ease of diagram and conveniently
Property, the relative size and ratio of the partial element in figure illustrate with being exaggerated or minimized in size, and arbitrary dimension is only example
Property, rather than it is limited.In addition, for appearing in identical works, key element or part in two or more figure, use
Identical reference marks, to embody its similar feature.
The preferable embodiment of the present invention has been shown in particular in embodiments of the invention.As a result, it is possible to it is contemplated to diagram
Various deformation.Therefore, embodiment is not limited to the regulation form in illustrated region, in addition to the form for example caused by manufacture
Deformation.
The buner system 101 of one embodiment of the invention is illustrated referring to Fig. 1 and Fig. 2.
Generally, engine discharge includes the waste gas of the oxynitrides of the burning generation by fuel.The one of the present invention is real
The buner system 101 for applying example is used in the reducing agent thermal decomposition of this waste gas.As illustrated in fig. 1, a real combustion of the invention
Burner system 101 includes：Burner body 100, it includes a region 110, another region 120, waste gas inflow entrance 130 and given up
Gas outlet 140；Fuel injection component 200；Next door 300；And reducing agent injecting-unit 400.
The region 110 that makes waste gas heat up is internally formed in burner body 100 and for being exhaust gases with and hot
Another region 120 of the reducing agent mixing of decomposition.Specifically, burner body 100 can be formed with growing along a direction, and interior
Portion is formed with hollow shape.
In addition, burner body 100 include it is useless to what is flowed into inside burner body 100 for the waste gas in engine discharge
Air flow inlet 130.Waste gas inflow entrance 130 can be formed at a region 110 adjacent with another region 120.
That is, waste gas inflow entrance 130 can be formed at what is mixed with for the reducing agent for being exhaust gases with and being thermal decomposited
The end in the opposed region 110 for making waste gas heat up in another region 120, to guide waste gas to make it be flowed into a region 110.
Outlet port 140 can be by so as to be formed at burner body by way of the waste gas discharge in another region 120
100.Specifically, using the reducing agent for being exhaust gases with thermal decomposition and it is exhaust gases with mixing, and passes through waste gas
Outlet 140 is discharged to reactor (not shown).
Fuel injection component 200 is by the spray fuel of a region 110 of burner body 100.That is, fuel injection component
200 can form flame to the internal spray fuel of burner body 100.Using the flame sprayed in fuel injection component 200,
It can be warmed by the waste gas of burner body 100.Specifically, fuel injection component 200 is arranged at burner body 100
Side.
That is, along a direction it is longer the burner body 100 that is formed side can be provided with fuel injection component
200, in opposite side formed with outlet port 140, and can be with shape between fuel injection component 200 and outlet port 140
Into there is waste gas inflow entrance 130.
Next door 300 is arranged at the inner side in a region 110 of burner body 100.In addition, next door 300 is guided from burner
The waste gas that the waste gas inflow entrance 130 of main body 100 flows into is passed to fuel injection component 200 and moved.Specifically, next door 300
A region 110 of burner body 100 can be arranged at, and is formed with parcel by the fuel sprayed from fuel injection component 200
The mode of a part of flame formed, to form combustion chamber.
That is, next door 300 can guide the waste gas flowed into from waste gas inflow entrance 130 to enable its flow into combustion chamber.In addition, next door
300 can be connected with another region 120, make to discharge by outlet port 140 by the waste gas inside next door 300.
Specifically, the movement of the waste gas moved using next door 300 from waste gas inflow entrance 130 to fuel injection component 200
Direction can be opposed with the direction from spraying the flame that the fuel set is formed to fuel injection component 200.
Therefore, can be cooled down in the waste gas that waste gas inflow entrance 130 flows into and is moved along next door 300 to surround by being sprayed in fuel
Penetrate the next door 300 that the mode of a part for the flame of the fuel formation of the injection of part 200 is formed.Therefore, in waste gas inflow entrance 130
The waste gas of inflow can move along next door 300, and be cooled into the temperature of the combustion chamber inside next door 300.
Reducing agent injecting-unit 400 is to the internal spray reducing agent of next door 300.Specifically, in reducing agent injecting-unit 400
The reducing agent of injection can be urea water (Urea).That is, can be with next door in the urea water that reducing agent injecting-unit 400 sprays
The combustion chamber that formation inside 300 has flame is thermal decomposited as ammonia and isocyanic acid.
Therefore, the ammonia being thusly-formed can flow into the reactor for being provided with catalyst, to improve the purification efficiency of waste gas.
In addition, the waste gas for flowing into reactor can be with the waste gas than the inflow of waste gas inflow entrance 130 from burner body 100
The relatively high temperature of temperature flow into reactor, it is thus possible to effectively prevent the waste gas temperature of the activated temperature because being less than catalyst
The poisoning and purification efficiency for spending the catalyst occurred decline.
Furthermore it is possible to using the temperature that combustion chamber is cooled down along the waste gas inside the flowing in combustion chamber of next door 300, thus can phase
The temperature that the reducing agent sprayed in reducing agent injecting-unit 400 is warmed is reduced over the ground.Therefore, the waste gas moved along next door 300
It can effectively prevent from spraying the foreign matter being likely to occur during reducing agent.
In addition, the buner system 101 of one embodiment of the invention can also include blade 500.
Blade (Vane) 500 can be arranged at the inner side of another region 120 of burner body 100, for use by another region
120 reducing agent being thermal decomposited and waste gas mixing.Specifically, blade 500, which can protrude, is formed at burner body 100
The inner peripheral surface in another region 120, the reducing agent for for being thermal decomposited effectively mix with waste gas.
Flowed into addition, the burner body 100 of the buner system 101 of one embodiment of the invention can also include new gas
Mouth 150.
New air flow inlet 150 can be formed at the side for the burner body 100 for being provided with fuel injection component 200.Also
That is, oxygen can be supplied to the fuel sprayed in fuel injection component 200 by flowing into the new gas of the outside of new air flow inlet 150, with
Make fuel combustion and form flame.
Therefore, new air flow inlet 150, can be outside to combustion for the burning of fuel sprayed in fuel injection component 200
New gas is supplied in one region of burner main body 100.
Specifically, can be between new air flow inlet 150 and outlet port 140 formed with waste gas inflow entrance 130.
In addition, the reducing agent injecting-unit 400 of the buner system 101 of one embodiment of the invention can be configured at new gas
Between inflow entrance 150 and waste gas inflow entrance 130.
Reducing agent injecting-unit 400 can be supported in next door 300.In addition, reducing agent injecting-unit 400 can be configured at newly
Between air flow inlet 150 and waste gas inflow entrance 130.
Specifically, reducing agent injecting-unit 400 can be configured at the combustion for being relatively lower than and being sprayed in fuel injection component 200
The secondary flame portion in the main flame portion of the end of fuel injection component 200 is formed at during material burning, to spray reducing agent.
Temperature in the main flame portion of the hospital areas of fuel injection component 200 is 1200 degrees Celsius (Deg.C).If to this
, then the danger for the ammonia burning being thermal decomposited be present in kind high-temperature area injection urea water.Therefore, can be by by reducing agent ejection section
Part 400 sprays urea water to the secondary flame portion that the stub area from fuel injection component 200 separates, and suppresses foreign matter generation, to have
Effect ground thermally decomposes to urea water.
The temperature in secondary flame portion can be in the range of 600 to 700 degrees Celsius (Deg.C).Specifically, if burner body
The entire length in 100 region 110 is L, then reducing agent injecting-unit 400 can be located at from the side of burner body 100
Distance 0.4L to 0.6L position.
That is, the reducing agent injecting-unit 400 of one embodiment of the invention can be to 600 be formed inside next door 300
Thermally decomposed to the flame injection reducing agent of 700 degrees Celsius (Deg.C).
For example, reducing agent injecting-unit 400 can with opposite be arranged to multiple.
In addition, the buner system 101 of one embodiment of the invention can also include cyclone (Swirler).
Cyclone 600 can adjust the length of the flame as caused by the fuel sprayed in fuel injection component 200.It is specific and
Speech, cyclone 600 can be arranged at one end of fuel injection component 200.In addition, as illustrated in Figure 2, cyclone 600 can be with
Tabular is formed, and multiple wings 610 of flat board are arranged at including protrusion.
That is, cyclone 600 can be rotated centered on fuel injection component 200, and utilize and flowed in new air flow inlet 150
The new gas entered or the waste gas rotation flowed into waste gas inflow entrance 130, and adjust the fuel shape by being sprayed in fuel injection component 200
Into flame length.
Therefore, cyclone 600 can be by the length adjustment of flame into the fire for making reducing agent injecting-unit 400 spray reducing agent
The temperature of flame is in the range of 600 to 700 degrees Celsius (Deg.C).Or cyclone 600 can be revolved by power set (not shown)
Turn.
In addition, the buner system 101 of one embodiment of the invention can also include fire defector part 700 and control unit
800。
Fire defector part 700 can detect is formed at the inner side of next door 300 by the fuel sprayed in fuel injection component 200
Combustion chamber flame temperature.Specifically, fire defector part 700 can be adjacent to reducing agent injecting-unit 400 and set
Put, to detect the temperature that reducing agent injecting-unit 400 sprays the secondary flame portion of reducing agent.
Control unit 800 can based on the flame detected in fire defector part 700 temperature information control reducing agent spray
Penetrate the action of part 400.Specifically, be set with control unit 800 can be effectively to being sprayed by reducing agent injecting-unit 400
The pyrolysis temperature range that the reducing agent penetrated is thermally decomposed.Therefore, control unit 800 can be to this thermal decomposition temperature set
Degree scope and the temperature of the flame detected are compared, and differentiate whether the action of burner is normal.In the flame detected
Temperature in the pyrolysis temperature range set in the case of, the action of burner can be determined as just by control unit 800
Often, and make reducing agent injecting-unit 400 continue to act, the heat decomposition temperature model set is exceeded in the temperature of the flame detected
In the case of enclosing, the action of burner can be determined as exception by control unit 800, and stop the dynamic of reducing agent injecting-unit 400
Make.
Or the flame having detected that temperature be below the heat decomposition temperature that has set in the case of, control unit 800
The drive device (not shown) of the fuel quantity supplied in fuel injection component 200 and cyclone 600 can be controlled to control flame
Length.
The action process of the buner system 101 of one embodiment of the invention is illustrated referring to Fig. 3.
In the region 110 that the waste gas of engine discharge passes through the inflow burner body 100 of waste gas inflow entrance 130.Now
The temperature of the waste gas of inflow is probably low temperature.
Length direction of the waste gas of inflow exhaust gas inflow entrance 130 along next door 300 moves.
Now, control unit 800 makes the action of fuel injection component 200 carry out the combustion chamber spray fuel to the inner side of next door 300, and
Make flame ignition using ignition part (not shown).
When fuel injection component 200 acts, new gas flows into the combustion chamber of the inner side of next door 300 by new air flow inlet 150.It is logical
Waste gas can be helped from the another of a lateral burner body 100 of burner body 100 by crossing the new gas that new air flow inlet 150 flows into
Move side.
Originally flowed into along length direction (forming direction opposite direction with flame) the mobile waste gas in next door 300 in next door 300
Side is come by flame, and heats up.Control unit 800 makes the action of reducing agent injecting-unit 400 spray reducing agent to secondary flame portion.
Therefore, heated up by flame by the waste gas of the inner side of next door 300, and had to the urea water for being exhaust gases with injection
It is ammonia and isocyanic acid to imitate thermal decomposition.
The ammonia and isocyanic acid that are thermal decomposited and it is exhaust gases with by another region 120, and whirlpool is formed by blade 500
Stream, and mix.That is, the ammonia and isocyanic acid that are thermal decomposited and it is exhaust gases with length direction shifting along another region 120
It is dynamic, and can be sufficiently mixed by blade 500.
The ammonia being thermal decomposited of mixing and isocyanic acid and it is exhaust gases with passing through outlet port in another region 120
140 discharge from burner body 100.The waste gas being discharged can flow into the reactor (not shown) for being provided with catalyst and decompose
For nitrogen and water (vapor), and discharged to outside.
In the case that the combustion chamber of the inner side of next door 300 forms flame, flowed into from waste gas inflow entrance 130 and along next door 300
Mobile waste gas can cool down the combustion chamber of the inner side of next door 300.Thus, it is possible to prevent that the temperature of the inner side of next door 300 from excessively being adjusted
It is whole, and prevent because the overheat of the inner side of next door 300 causes to be possible in the reducing agent thermal decomposition that reducing agent injecting-unit 400 sprays
The burning of the ammonia of generation or the generation of foreign matter.
By this composition, the buner system 101 of one embodiment of the invention effectively can carry out heat to reducing agent
Decompose.
Specifically, for buner system 101, an area of burner body 100 is flowed into by waste gas inflow entrance 130
Length direction flowing of the waste gas in domain along next door 300, and effectively cool down by the spray fuel of fuel injection component 200 to form fire
The temperature of the inner side in the next door 300 of flame.Thus, it is possible to when preventing the urea hydrothermal decomposition to the inner side injection in next door 300, have can
The burning of ammonia or the generation of foreign matter that be able to can occur.
In addition, in buner system 101, burner body 100 includes the region 110 for making waste gas heat up and for being warmed
Waste gas and be thermal decomposited reducing agent mixing another region 120, it is thus possible to effectively waste gas is heated up, and make to be warmed
Waste gas be sufficiently mixed with the reducing agent being thermal decomposited.
Although embodiments of the invention are illustrated above with reference to accompanying drawing, the technical field of the invention it is general
Technical staff be appreciated that do not change the present invention technological thought or Essential features on the premise of, can be with other specific shapes
State implements the present invention.
Therefore, embodiments described above be interpreted as be in all respects it is exemplary, rather than limited,
The scope of the invention described above is showed by the following claims style of calligraphy, is led from the meaning of claims, scope and its equivalent concept
The form for having altered or deforming gone out, which should be interpreted that, falls into the scope of the present invention.
Industrial utilization possibility
The buner system of embodiments of the invention can be used for, to be used in reducing agent thermal decomposition, making to discharge in engine
Waste gas heating.
Claims (6)
1. a kind of buner system, it makes the waste gas heating in engine discharge, its feature to be used in reducing agent thermal decomposition
It is, including：
Burner body, it includes making region that waste gas heats up, for being exhaust gases with and being thermal decomposited in a region
Reducing agent mixing another region, be formed at a region adjacent with another region supply waste gas flow into waste gas stream
Entrance and for use by another region waste gas discharge outlet port；
Fuel injection component, it is arranged at the side of the burner body, to an area spray of the burner body
Fuel；
Next door, it is arranged at the inner side in a region of the burner body, and makes the waste gas inflow from the burner body
The waste gas that mouth flows into moves to the fuel injection component；And
Reducing agent injecting-unit, it is to the next door internal spray reducing agent.
2. buner system according to claim 1, it is characterised in that also include：
Blade, it is arranged at another area inside, mixing by the reducing agent being thermal decomposited in another region and
Waste gas.
3. buner system according to claim 1, it is characterised in that
The burner body also includes new air flow inlet, and it is formed at the side of the burner body to supply new gas, with
Make the fuel combustion in the fuel injection supplied by the fuel injection component.
4. buner system according to claim 3, it is characterised in that
The reducing agent injecting-unit is configured between the new air flow inlet and the waste gas inflow entrance.
5. buner system according to claim 1, it is characterised in that
Also include cyclone (Swirler), it is arranged at a region, can adjust by being sprayed in the fuel injection component
Fuel caused by flame length.
6. buner system according to any one of claim 1 to 5, it is characterised in that also include：
Fire defector part, it detects the flame temperature in a region；And
Control unit, it controls the reducing agent ejection section based on the flame temperature information detected in the fire defector part
The action of part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0077058 | 2015-06-01 | ||
| KR1020150077058A KR101699614B1 (en) | 2015-06-01 | 2015-06-01 | Burner system |
| PCT/KR2015/014333 WO2016195195A1 (en) | 2015-06-01 | 2015-12-28 | Burner system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107667210A true CN107667210A (en) | 2018-02-06 |
| CN107667210B CN107667210B (en) | 2020-08-11 |
Family
ID=57440618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580080514.5A Active CN107667210B (en) | 2015-06-01 | 2015-12-28 | Burner system |
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| Country | Link |
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| JP (1) | JP6660403B2 (en) |
| KR (1) | KR101699614B1 (en) |
| CN (1) | CN107667210B (en) |
| WO (1) | WO2016195195A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102052A (en) * | 2018-10-26 | 2020-05-05 | Ceracomb株式会社 | Exhaust gas aftertreatment system and control method thereof |
| CN111801528A (en) * | 2018-03-28 | 2020-10-20 | 株式会社Ihi | Combustion apparatus and gas turbine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101915741B1 (en) * | 2017-04-04 | 2018-11-06 | 한국기계연구원 | Urea ammonia transformming device and urea scr system using of the same |
| KR102602506B1 (en) * | 2018-05-14 | 2023-11-15 | 에이치에스디엔진 주식회사 | Burner system |
| KR102035979B1 (en) * | 2019-06-27 | 2019-10-23 | 부경대학교 산학협력단 | Apparatus for treating exhaust gas |
| CN111997715A (en) * | 2020-08-26 | 2020-11-27 | 山东盛锐达环保科技有限公司 | Gas source-free auxiliary combustor for engine |
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| KR101346194B1 (en) * | 2011-08-19 | 2014-01-06 | 송일환 | Bunner for dpf apparatus |
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- 2015-06-01 KR KR1020150077058A patent/KR101699614B1/en active IP Right Grant
- 2015-12-28 JP JP2017562765A patent/JP6660403B2/en active Active
- 2015-12-28 CN CN201580080514.5A patent/CN107667210B/en active Active
- 2015-12-28 WO PCT/KR2015/014333 patent/WO2016195195A1/en active Application Filing
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| EP2295755A2 (en) * | 2009-09-15 | 2011-03-16 | Kabushiki Kaisha Toyota Jidoshokki | Exhaust gas treatment system |
| CN104024596A (en) * | 2011-12-28 | 2014-09-03 | 日野自动车株式会社 | Exhaust gas purification device |
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| CN111801528A (en) * | 2018-03-28 | 2020-10-20 | 株式会社Ihi | Combustion apparatus and gas turbine |
| CN111102052A (en) * | 2018-10-26 | 2020-05-05 | Ceracomb株式会社 | Exhaust gas aftertreatment system and control method thereof |
| CN111102052B (en) * | 2018-10-26 | 2021-11-26 | Ceracomb株式会社 | Exhaust gas aftertreatment system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6660403B2 (en) | 2020-03-11 |
| JP2018516339A (en) | 2018-06-21 |
| WO2016195195A1 (en) | 2016-12-08 |
| KR20160141423A (en) | 2016-12-09 |
| KR101699614B1 (en) | 2017-01-24 |
| CN107667210B (en) | 2020-08-11 |
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