CN108757115A - A kind of fuel gas buring Emission control clarifier for diesel engine - Google Patents
A kind of fuel gas buring Emission control clarifier for diesel engine Download PDFInfo
- Publication number
- CN108757115A CN108757115A CN201810598567.1A CN201810598567A CN108757115A CN 108757115 A CN108757115 A CN 108757115A CN 201810598567 A CN201810598567 A CN 201810598567A CN 108757115 A CN108757115 A CN 108757115A
- Authority
- CN
- China
- Prior art keywords
- gas
- engine
- air
- diesel engine
- emission control
- 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
- 239000002737 fuel gas Substances 0.000 title claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 62
- 238000002485 combustion reaction Methods 0.000 claims abstract description 25
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000000567 combustion gas Substances 0.000 claims description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- 230000003197 catalytic effect Effects 0.000 claims description 9
- 239000003345 natural gas Substances 0.000 claims description 8
- 238000006555 catalytic reaction Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000005507 spraying Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 10
- 238000012805 post-processing Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
- F01N3/0256—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases the fuel being ignited by electrical means
-
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
-
- 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
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a kind of fuel gas buring Emission control clarifiers for diesel engine, including engine, the exhaust pipe of engine, gas mixer chamber, combustion chamber, catalyst converter, are automatically controlled by PID/PLC systems；Provide a kind of completely new diesel motor exhaust CO, HC, NOX, PM post processing mode, and, it can be by the former diesel motor exhaust processing mode for reaching emission request using DOC+DPF+SCR complex ways, change into fuel gas buring Emission control clarifier, keep the vent gas treatment structure of diesel engine simpler, reduces the overall cost of exhaust gas aftertreatment system.
Description
Technical field
The present invention relates to motor exhaust process field, specifically a kind of fuel gas buring quadruple effect for diesel engine is urged
Change clarifier.
Background technology
Diesel engine is burning diesel oil to obtain exergonic engine.Diesel engine pollutes during the work time
Obviously, especially black smoke（Imperfect combustion）It is fairly obvious.As the people is to the increasing requirement of environment and environmental law
That advises is increasingly harsh, and diesel engine vent gas processing also begins to fast development.Single filtering of the processing means by most, which is changed into, urges
The multiple means such as agent reaction, redox reaction, harmless treatment synthesis uses；Processing target is also increased from particulate matter
A variety of polymorphic type substances such as nitrogen oxides, hydroxide, oxycarbide and pellet.About diesel engine vent gas processing
Document is more, such as Publication No. CN207278331, discloses a kind of engine tail gas purifier.It is existing to use DOC+DPF+
SCR modes reach the diesel motor exhaust processing mode of emission request, and there are the problems such as complicated, overall cost is higher.
Invention content
The present invention is to provide a kind of fuel gas buring for diesel engine to overcome above-mentioned defect in the prior art
Emission control clarifier.Not only motor exhaust processing structure can be made simpler, it is whole can also effectively to reduce processing system
Body cost.
To achieve the above object, the invention uses following technical scheme：A kind of combustion gas for diesel engine is fired
Emission control clarifier is burnt, the Emission control clarifier is equipped with right gas gas bomb, compression is stored in the combustion gas gas bomb
Combustion gas or liquefaction gas, compressed gas flow through that pressure reducing valve is depressurized, liquefaction gas is with vapourizing unit and subtracting by pipeline
Pressure device, flow control valve enter gas mixer chamber mixing through combustion gas access port, then burn in the combustion chamber；The combustion gas
Burning Emission control clarifier is designed with the compressed air or individual small air compressor, wind turbine of access vehicle itself（It is to show
Give oxygen replenishment burning）, air compressor formed after compressing extraneous air compressed air by the road, air flow control valve leads to
The air nozzle in air access port is crossed, is sprayed into gas mixing room, is promoted and is contained with the penetrating mixed oxygen of natural gas
Amount, the spark plug auto-ignition combustion controlled by ignition.Diesel engine discharge tail gas is passed through into burner flame height
Warm area fully burns the PM particulate matters that engine emission goes out.Combustion gas will produce CO, HC gas in combustion, by adjusting
The air-fuel ratio of gas burner come realize output proper amount of CO, HC be reducing gas, pass through rhodium catalysis after obtaining CO, HC gas
NO in agent conversion dischargeX, to reach catalytic purification of CO, HC, NOX, PM fuel gas buring Four-way Catalytic Converters discharge purpose.
This system controls all signal and power supply using PID/PLC, is equipped with delayer.Delayer refers to engine start
Close synchronously combustion system after delayed startup auto-ignition combustion system and engine misses is set afterwards.PID/PLC systems include
Harness, flow control units, electronics tach signal, the preceding NOx sensor on exhaust pipe, rear NOx sensor, catalysis are net
Change component parts, the control units such as device, gas flow sensor to sense by being mounted on fuel gas buring Emission control clarifier
Device signal determines the flow of exhaust pipe and the tach signal of Engine ECU calculates accurate operating mode, and passes through real data mark
Surely it determines natural gas and supplements the supply of air, and by natural gas flow control valve, air compressor and air mass flow
The control of control valve accurately sprays into quantitative natural gas and air into exhaust pipe, to ensure in engine emission according to gas
Stream and rotating speed realize the size of flame to reach combustion gas and air adjust automatically.
The invention has done Optimal improvements on the basis of existing tail gas disposal technique, passes through PID（Ratio
(proportion), (integral), differential (derivative) are integrated）Controller realizes reliable automatic adjustment, by tail gas
Harmless treatment.The technical program can be by the former diesel engine tail for reaching emission request using DOC+DPF+SCR complex ways
Gas disposal mode changes into the vent gas treatment mode of fuel gas buring black smoke burning+ternary catalyzing unit, makes the tail gas of diesel engine
Processing structure is simpler, reduces the overall cost and use cost of exhaust gas aftertreatment system.
Description of the drawings
Fig. 1 is the structural schematic diagram of the invention.
Reference sign：1, engine, 2, the exhaust pipe of engine, 3, exhaust emissions entrance, 4, flame detector, 5, combustion
Gas access port, 6, air-fuel ratio solenoid valve, 7, spark plug, 8, ignition, 9, air access port, 10, combustion chamber, 11, catalysis
Device, 12, catalysis after outlet, 13, gas flow sensor, 14, engine power, 15, electronics rotating speed.
Specific implementation mode
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of fuel gas buring Emission control clarifier for diesel engine, including engine 1, start
There are flame detector 4, combustion gas access port in machine exhaust pipe 2, gas mixer chamber, combustion chamber 10, catalyst converter 11, gas mixer chamber front end
5, air-fuel ratio solenoid valve 6, spark plug 7, gas mixer chamber middle part have exhaust emissions entrance 3,3 the right of exhaust emissions access port free
Gas access port 9, gas mixer chamber rear portion connect combustion chamber 10, and 10 rear portion of combustion chamber connects catalyst converter 11, and catalyst converter rear portion is to urge
Outlet 12, sensor 13 after change.
The Emission control clarifier is equipped with combustion gas gas bomb, and compressed gas or liquid are stored in the combustion gas gas bomb
Change combustion gas, compressed gas by pipeline flow through pressure reducing valve depressurized, liquefaction gas carry vapourizing unit and decompressor, flow
Control valve enters gas mixer chamber, in combustion chamber via combustion of natural gas gas access port 5 is accessed mounted on the exhaust pipe of engine 2
Burning in 10.The fuel gas buring Emission control clarifier has the compressed air or vehicle non-compressed air itself of access vehicle itself
When design individual small air compressor, wind turbine（Refer to giving oxygen replenishment burning）, air compressor compresses extraneous air
Afterwards formed compressed air by the road, air flow control valve by be mounted on air access port 9 enter gas mixer chamber, promoted oxygen
Content is mixed with the natural gas of penetrating, and controlling 7 auto-ignition combustion of spark plug by ignition 8 forms thermal-flame, by bavin
Oil turbine discharge tail gas is fully burnt the PM particulate matters that engine emission goes out by the flame high-temperature region in combustion chamber 10.
Natural gas will produce CO, HC gas in combustion, adjust air-fuel ratio by air-fuel ratio solenoid valve 6 to realize production
It is reducing gas to go out proper amount of CO, HC, is converted in discharge by rhodium catalyst in catalyst converter 11 after obtaining CO, HC gas
NOX, to reach catalytic purification of CO, HC, NOX, PM fuel gas buring Four-way Catalytic Converters discharge purpose.
This system is powered using PID/PLC systems by engine power 14, and all signal and power supply are controlled.PID/PLC
System is equipped with delayer, refers to synchronous after setting delayed startup auto-ignition combustion system and engine misses after engine start
Close combustion system.PID/PLC systems include flow control units, electronics rotating speed, harness, the preceding NOx on exhaust pipe
The component parts such as sensor, rear NOx sensor, catalytic cleaner, gas flow sensor 14.Control unit is by being mounted on combustion
Sensor signal determines that the flow of exhaust pipe and the tach signal of Engine ECU calculate standard on gas burning Emission control clarifier
True operating mode, and by real data demarcate determine combustion gas and supplement air supply, and by gas flow control valve,
The control of air compressor and air flow control valve accurately sprays into quantitative combustion gas and air into exhaust pipe, to ensure
The size of flame is realized to reach combustion gas and air adjust automatically according to air-flow and rotating speed in engine emission.After catalysis
The gas flow sensor 13 installed on outlet 12, NOx sensor, electronics rotating speed 14 etc. feed back to PID/PLC systems, carry out
Closed-loop automatic control exhaust combustion.
Purification system operation principle：Purifier system passes through the number to Engine ECU by discharge gas flow control unit
It is believed that number calculating, determine spray into exhaust pipe in combustion gas tolerance and air tolerance, power supply be powered after ignition 8 from
Dynamic igniting, flame detector 4 detects light a fire successfully after, ignition 8 is automatically closed in system；Pass through exhaust airstream inductor
To gas flow control, air flow control（Or rotating speed speed is reached to independent air pump, the control of wind turbine Current Voltage to realize
Air-flow size）, achieve the purpose that spray into exhaust pipe in the tolerance of combustion gas and the tolerance of air accurately control；Control is single
Member can also control the rotating speed of air compressor, wind turbine, met to reach by the demand tolerance of determining air
System air demand demand.
The present invention by by the air mixture of motor exhaust elder generation, after-combustion, then catalytic treatment, reach catalytic purification of CO, HC,
NOX, PM, to realize fuel gas buring Four-way Catalytic Converter discharge purpose, reduce environmental pollution.Original can be used DOC+ by the present invention
DPF+SCR complex ways reach the diesel motor exhaust processing mode of emission request, change into fuel gas buring black smoke purification+three
The vent gas treatment mode of first catalyst converter keeps the vent gas treatment structure of diesel engine simpler, reduces exhaust gas aftertreatment system
Overall cost and use cost.
Claims (4)
1. a kind of fuel gas buring Emission control clarifier for diesel engine, including engine（1）, the exhaust pipe of engine
（2）, gas mixer chamber, combustion chamber（10）, catalyst converter（11）, it is characterised in that：There is flame detector in gas mixer chamber front end
（4）, combustion gas access port（5）, air-fuel ratio solenoid valve（6）, spark plug 7, have exhaust emissions entrance in the middle part of gas mixer chamber（3）, tail
Gas discharges access port（3）There is air access port on the right（9）, gas mixer chamber rear portion connects combustion chamber（10）, combustion chamber（10）Afterwards
Portion connects catalyst converter（11）, catalyst converter rear portion is outlet after catalysis（12）.
2. being used for the fuel gas buring Emission control clarifier of diesel engine as described in claim 1, it is characterised in that：PID/
PLC system includes flow control units, harness, the preceding NOx sensor on exhaust pipe, rear NOx sensor, catalytic purification
Device, gas flow sensor（13）, PID/PLC systems are by engine power（14）Power supply.
3. being used for the fuel gas buring Emission control clarifier of diesel engine as claimed in claim 2, it is characterised in that：PID/
PLC system is equipped with delayer, passes through outlet after catalysis（12）The gas flow sensor of upper installation（13）, NOx sensor it is anti-
It feeds PID/PLC systems, carries out closed-loop automatic control exhaust combustion.
4. being used for the fuel gas buring Emission control clarifier of diesel engine as claimed in claim 2, it is characterised in that：Clarifier
System is by extraction flow, NOx concentration（PPm）, the control units such as rotating speed by pair and Engine ECU data-signal calculating,
Determine the tolerance and air for spraying into the natural gas in exhaust pipe（Oxygen）Tolerance, power supply be powered after ignition（8）Automatic point
Fire, flame detector（4）After detecting and lighting a fire successfully, ignition is automatically closed in system（8）；Exhaust airstream sense can be passed through
Answer device, tach signal, NOx concentration（PPm）To gas discharge control, air flow control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810598567.1A CN108757115A (en) | 2018-06-12 | 2018-06-12 | A kind of fuel gas buring Emission control clarifier for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810598567.1A CN108757115A (en) | 2018-06-12 | 2018-06-12 | A kind of fuel gas buring Emission control clarifier for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757115A true CN108757115A (en) | 2018-11-06 |
Family
ID=64021137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810598567.1A Pending CN108757115A (en) | 2018-06-12 | 2018-06-12 | A kind of fuel gas buring Emission control clarifier for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542282A (en) * | 2022-03-08 | 2022-05-27 | 占峰 | Fixed device for controlling operation and diagnosis of diesel engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890465A (en) * | 2003-09-29 | 2007-01-03 | 雷蒙德·P·科维特 | Diesel engine exhaust purification system |
| CN105186575A (en) * | 2015-11-05 | 2015-12-23 | 上海科泰电源股份有限公司 | Diesel generating set parallel operation system for safety source of thermal power plant |
| CN105649733A (en) * | 2016-01-07 | 2016-06-08 | 浙江大学 | SCR (selective catalytic reduction) system for small and medium-sized ships |
| CN106555643A (en) * | 2015-09-28 | 2017-04-05 | 中国船舶重工集团公司第七研究院 | Ship machine SCR multichannel jet control systems |
| CN107233689A (en) * | 2017-04-24 | 2017-10-10 | 北京航天试验技术研究所 | A kind of kidney-yang generator of long flame and kidney-yang analogue means |
| CN208982142U (en) * | 2018-06-12 | 2019-06-14 | 刘光文 | A kind of fuel gas buring Emission control clarifier for diesel engine |
-
2018
- 2018-06-12 CN CN201810598567.1A patent/CN108757115A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1890465A (en) * | 2003-09-29 | 2007-01-03 | 雷蒙德·P·科维特 | Diesel engine exhaust purification system |
| CN106555643A (en) * | 2015-09-28 | 2017-04-05 | 中国船舶重工集团公司第七研究院 | Ship machine SCR multichannel jet control systems |
| CN105186575A (en) * | 2015-11-05 | 2015-12-23 | 上海科泰电源股份有限公司 | Diesel generating set parallel operation system for safety source of thermal power plant |
| CN105649733A (en) * | 2016-01-07 | 2016-06-08 | 浙江大学 | SCR (selective catalytic reduction) system for small and medium-sized ships |
| CN107233689A (en) * | 2017-04-24 | 2017-10-10 | 北京航天试验技术研究所 | A kind of kidney-yang generator of long flame and kidney-yang analogue means |
| CN208982142U (en) * | 2018-06-12 | 2019-06-14 | 刘光文 | A kind of fuel gas buring Emission control clarifier for diesel engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542282A (en) * | 2022-03-08 | 2022-05-27 | 占峰 | Fixed device for controlling operation and diagnosis of diesel engine |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181106 |
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