CN108301902A - A kind of centrifugal diesel engine exhaust gas purification device and its purification method - Google Patents
A kind of centrifugal diesel engine exhaust gas purification device and its purification method Download PDFInfo
- Publication number
- CN108301902A CN108301902A CN201810161568.XA CN201810161568A CN108301902A CN 108301902 A CN108301902 A CN 108301902A CN 201810161568 A CN201810161568 A CN 201810161568A CN 108301902 A CN108301902 A CN 108301902A
- Authority
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- China
- Prior art keywords
- cylinder
- diesel engine
- soot particles
- tail gas
- carbon soot
- 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.)
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/037—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 inertial or centrifugal separators, e.g. of cyclone type, optionally combined or associated with agglomerators
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
-
- 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]
- F01N3/2073—Selective catalytic reduction [SCR] with means for generating a reducing substance from the exhaust gases
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention discloses a kind of centrifugal diesel engine exhaust gas purification device and its purification methods.Including cylinder, exhaust pipe and air inlet pipe, the carbon soot particles collection box that urea liquid is housed in an end cover and one is separately installed at the both ends of cylinder；Exhaust pipe is straight tube, and one end stretches into the bottom of cylinder lumen, and the other end stretches out end cover；One end of air inlet pipe is helical tube body structure, and positioned at the inner cavity of cylinder, and the other end stretches out except cylinder.And this purifier can carry out purified treatment to oxynitrides and carbon soot particles simultaneously, reduce the cost of tail gas clean-up, effectively improve environmental pollution, improve air quality.
Description
Technical field
The present invention relates to diesel engine exhaust gas purification device more particularly to a kind of centrifugal diesel engine exhaust gas purification device and its
Purification method.
Background technology
Due to the increasingly influence getting worse of reduction and global greenhouse effect of petroleum resources, diesel vehicle is because of its high efficiency
It receives and is widely applied with the characteristics of low oil consumption.But compared with gasoline engine, diesel engine will produce more in use
Oxynitrides and carbon soot particles.Oxynitrides can destroy ozone layer, have intoxicating effect to human body；Carbon soot particles are to influence
One of the principal element of PM2.5 contents, not only pollutes atmospheric environment in air, but also is adsorbed on polycyclic aromatic hydrocarbon above
Also have the function of carcinogenic.Therefore, for the purification techniques of diesel engine vent gas for improving environmental pollution, improving air quality has weight
It acts on.
Currently, the purification of diesel engine vent gas is mainly realized by after-treatment device outside machine：Using ternary catalyzing unit,
Oxynitrides is catalysed and reduced into innocuous gas nitrogen by SCR etc.；The soot in diesel engine vent gas is captured using grain catcher
Particle.But both technologies can only all handle single harmful components, the nuisance that can not be fully cleaned up in diesel engine vent gas
Matter.In routine use, the nitrogen oxidation that can be just fully cleaned up the series connection of two or more devices in diesel engine vent gas is generally required
Object and carbon soot particles are closed, use cost is increased.It would therefore be highly desirable to which research and develop a kind of can handle oxynitrides and carbon soot particles simultaneously
Diesel engine exhaust gas purification device.
Invention content
The shortcomings that it is an object of the invention to overcome the above-mentioned prior art and deficiency, provide it is a kind of it is simple and practical in structure from
Core type diesel engine exhaust gas purification device and its purification method.
The present invention is achieved through the following technical solutions：
A kind of centrifugal diesel engine exhaust gas purification device, including cylinder 6, exhaust pipe 1 and air inlet pipe 5, at the both ends of cylinder 6
It is separately installed with the carbon soot particles collection box 7 that urea liquid is housed in an end cover 2 and one；
The exhaust pipe 1 is straight tube, and one end stretches into the bottom of 6 inner cavity of cylinder, and the other end stretches out end cover 2；
One end of the air inlet pipe 5 be helical tube body structure, and positioned at cylinder 6 inner cavity, the other end stretch out cylinder 6 it
Outside.
The helical tube body structure of the air inlet pipe 5 along cylinder 6 axis direction coiled coil；The spiral shell of the air inlet pipe 5
Revolve axis direction coiled coil of the pipe structure along cylinder 6；It is molten that a part for the helical tube body structure gas outlet is located at urea
Under the liquid level of liquid, a remaining part is directly exposed at the inner cavity of cylinder 6.
The axis of the exhaust pipe 1 and the axis of cylinder 6 coincide with one another.
It uses and is threadedly coupled between the carbon soot particles collection box 7 and cylinder 6.
The end cover 2 is tightly connected by ring flange 3,4 and cylinder 6.
The cylinder 6 is circular cylinder body.
A kind of centrifugal diesel engine vent gas purification method comprising following steps：
When diesel engine works, the tail gas of diesel emission is entered the inner cavity of cylinder 6 by air inlet pipe 5, and tail gas is in helix tube
Centrifugal force is generated when being flowed in body structure, the carbon soot particles carried in tail gas are thrown toward and are adhered to spiral shell under the influence of centrifugal force
The internal face for revolving pipe structure makes the carbon soot particles carried in tail gas complete first separation in helical tube body inside configuration；
Tail gas after first separation enters the inner cavity of cylinder 6, is connect with the urea liquid surface in carbon soot particles collection box 7
It touches, and is flowed through on urea liquid surface, after carbon soot particles contact generation accumulation with urea liquid, sink to urea under the effect of gravity
In solution, urea liquid evaporates under the heat effect of tail gas generates ammonia, and ammonia mixes with oxynitrides and reacts generation
Nitrogen and water complete the double purification of tail gas with this；Purified tail gas is discharged by exhaust pipe 1.
The present invention compared with the existing technology, has the following advantages and effect：
1. conventional exhaust purifier is mainly a kind of harmful components of certain in cleaning of off-gas.And the present invention can be simultaneously to nitrogen
Oxygen compound and carbon soot particles carry out purified treatment, reduce the cost of tail gas clean-up, effectively improve environmental pollution, improve air
Quality.
2. the present invention is designed using the helical structure of air inlet pipe, centrifugation is generated while so that tail gas is moved in air inlet pipe
Power, carbon soot particles are thrown toward and are adsorbed on inner surface of tube wall, gas is made to be detached with carbon soot particles under the influence of centrifugal force, then connect
The inner cavity into cylinder, is contacted with the urea liquid surface in carbon soot particles collection box, and flowed through on urea liquid surface, carbon
It after smoke particle contacts generation accumulation with urea liquid, sinks in urea liquid under the effect of gravity, urea liquid adds tail gas
Evaporation generates ammonia under heat effect, and ammonia, which is mixed and reacted with oxynitrides, generates nitrogen and water, and the two of tail gas is completed with this
Secondary purification；Purified tail gas is discharged by exhaust pipe.
3. the present invention utilizes (automobile-used) the purification oxynitrides of urea liquid.In tail gas and urea liquid, due to tail gas
High temperature make Urea Evaporation generate ammonia.Under the high temperature conditions, ammonia is reacted with oxynitrides generates nitrogen and water, reduces nitrogen
The discharge of oxygen compound.
4. carbon soot particles collection box of the present invention is detachable connection, maintenance easy to replace, maintain with cylinder.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific implementation mode
The present invention is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Figure 1.The invention discloses a kind of centrifugal diesel engine exhaust gas purification devices, including cylinder 6, exhaust pipe 1
With air inlet pipe 5, it is separately installed with the carbon soot particles equipped with urea liquid in an end cover 2 and one at the both ends of cylinder 6 and collects
Box 7；
The exhaust pipe 1 is straight tube, and one end stretches into the bottom of 6 inner cavity of cylinder, and the other end stretches out end cover 2；
One end of the air inlet pipe 5 be helical tube body structure, and positioned at cylinder 6 inner cavity, the other end stretch out cylinder 6 it
Outside.
The helical tube body structure of the air inlet pipe 5 along cylinder 6 axis direction coiled coil；The helical tube body structure goes out
A part for gas port is located under the liquid level of urea liquid, and a remaining part is directly exposed at the inner cavity of cylinder 6.
The axis of the exhaust pipe 1 and the axis of cylinder 6 coincide with one another.
Using being threadedly coupled between the carbon soot particles collection box 7 and cylinder 6, facilitates later maintenance maintenance, replaces.
The end cover 2 is tightly connected by ring flange 3,4 and cylinder 6, and when connection should carry out the air-tightness of junction.
6 generally circular in cross section tube structure of the cylinder.
The purification method of the centrifugal diesel engine exhaust gas purification device of the present invention is as follows：
When diesel engine works, the tail gas of diesel emission is entered the inner cavity of cylinder 6 by air inlet pipe 5, and tail gas is in helix tube
Centrifugal force is generated when being flowed in body structure, the carbon soot particles carried in tail gas are thrown toward and are adhered to spiral shell under the influence of centrifugal force
The internal face for revolving pipe structure makes the carbon soot particles carried in tail gas complete first separation in helical tube body inside configuration；
Tail gas after first separation enters the inner cavity of cylinder 6, is connect with the urea liquid surface in carbon soot particles collection box 7
It touches, and is flowed through on urea liquid surface, after carbon soot particles contact generation accumulation with urea liquid, sink to urea under the effect of gravity
In solution, urea liquid evaporates under the heat effect of tail gas generates ammonia, and ammonia mixes with oxynitrides and reacts generation
Nitrogen and water complete the double purification of tail gas with this；Purified tail gas is discharged by exhaust pipe 1.
With the work of diesel engine, the urea liquid of carbon soot particles collection box 7 is reduced, and carbon soot particles increase, a period of time
After need to remove carbon soot particles collection box 7, cleaning is deposited in carbon soot particles therein, while the urea more renewed in it is molten
Liquid, to reuse.
While replacing carbon soot particles collection box 7, can according to carbon soot particles the helical tube body structure of air inlet pipe 5 pipe
The degree gathered on wall is rinsed it with clear water.When flushing, the connection of air inlet pipe 5 and diesel engine is disconnected, and is connect
To high-pressure water.
As described above, the present invention can be better realized.
Embodiment of the present invention are not limited by the above embodiments, other any Spirit Essences without departing from the present invention
With under principle made by changes, modifications, substitutions, combinations, simplifications, should be equivalent substitute mode, be included in the present invention
Within protection domain.
Claims (6)
1. a kind of centrifugal diesel engine exhaust gas purification device, it is characterised in that：Including cylinder (6), exhaust pipe (1) and air inlet pipe
(5), it is separately installed with the carbon soot particles collection box equipped with urea liquid in an end cover (2) and one at the both ends of cylinder (6)
(7)；
The exhaust pipe (1) is straight tube, and one end stretches into the bottom of cylinder (6) inner cavity, and the other end stretches out end cover (2)；
One end of the air inlet pipe (5) be helical tube body structure, and positioned at cylinder (6) inner cavity, the other end stretch out cylinder (6) it
Outside.
2. centrifugal diesel engine exhaust gas purification device according to claim 1, it is characterised in that：The spiral shell of the air inlet pipe (5)
Revolve axis direction coiled coil of the pipe structure along cylinder (6)；A part for the helical tube body structure gas outlet is located at urea
Under the liquid level of solution, a remaining part is directly exposed at the inner cavity of cylinder (6).
3. centrifugal diesel engine exhaust gas purification device according to claim 2, it is characterised in that：The carbon soot particles collection box
(7) it uses and is threadedly coupled between cylinder (6)；The axis of exhaust pipe (1) and the axis of cylinder (6) coincide with one another.
4. centrifugal diesel engine exhaust gas purification device according to claim 2, it is characterised in that：The end cover (2) is logical
Ring flange (3,4) is crossed to be tightly connected with cylinder (6).
5. centrifugal diesel engine exhaust gas purification device according to claim 2, it is characterised in that：The cylinder (6) is circle
Cylinder.
6. a kind of centrifugal diesel engine vent gas purification method, it is characterised in that using centrifugal diesel oil tail described in claim 2
Air purifying apparatus is realized comprising following steps：
When diesel engine works, the tail gas of diesel emission is entered the inner cavity of cylinder (6) by air inlet pipe (5), and tail gas is in helix tube
Centrifugal force is generated when being flowed in body structure, the carbon soot particles carried in tail gas are thrown toward and are adhered to spiral shell under the influence of centrifugal force
The internal face for revolving pipe structure makes the carbon soot particles carried in tail gas complete first separation in helical tube body inside configuration；
Tail gas after first separation enters the inner cavity of cylinder (6), is connect with the urea liquid surface in carbon soot particles collection box (7)
It touches, and is flowed through on urea liquid surface, after carbon soot particles contact generation accumulation with urea liquid, sink to urea under the effect of gravity
In solution, urea liquid evaporates under the heat effect of tail gas generates ammonia, and ammonia mixes with oxynitrides and reacts generation
Nitrogen and water complete the double purification of tail gas with this；Purified tail gas is discharged by exhaust pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161568.XA CN108301902B (en) | 2018-02-26 | 2018-02-26 | Centrifugal diesel engine tail gas purifying device and purifying method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810161568.XA CN108301902B (en) | 2018-02-26 | 2018-02-26 | Centrifugal diesel engine tail gas purifying device and purifying method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108301902A true CN108301902A (en) | 2018-07-20 |
| CN108301902B CN108301902B (en) | 2023-09-26 |
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ID=62848930
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810161568.XA Active CN108301902B (en) | 2018-02-26 | 2018-02-26 | Centrifugal diesel engine tail gas purifying device and purifying method thereof |
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| Country | Link |
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| CN (1) | CN108301902B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318849A (en) * | 2019-06-21 | 2019-10-11 | 东莞理工学院城市学院 | The particle separator of water jet absorption diesel engine vent gas in a kind of helix tube |
| CN110541743A (en) * | 2019-09-29 | 2019-12-06 | 华南理工大学 | Spiral diesel engine tail gas purification device and purification method thereof |
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| JP2001221031A (en) * | 2000-02-07 | 2001-08-17 | Isao Kato | Exhaust emission contlol device |
| CN102042063A (en) * | 2010-09-30 | 2011-05-04 | 中国人民解放军军事交通学院 | Atomizing jet-spray device for reducing agent for purifying exhaust nitric oxide of diesel engine |
| CN105275556A (en) * | 2014-07-10 | 2016-01-27 | 无锡国煤重工机械有限公司 | Control system for water adding tank of explosion-proof diesel engine |
| CN106014573A (en) * | 2016-06-28 | 2016-10-12 | 芜湖澳奔玛汽车部件有限公司 | Automobile exhaust purification device |
| CN205744066U (en) * | 2016-06-01 | 2016-11-30 | 南昌洪乐汽车配件有限公司 | A kind of Novel automobile exhaust pipe with purifier |
| CN208010433U (en) * | 2018-02-26 | 2018-10-26 | 华南理工大学 | A kind of centrifugal diesel engine exhaust gas purification device |
-
2018
- 2018-02-26 CN CN201810161568.XA patent/CN108301902B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001221031A (en) * | 2000-02-07 | 2001-08-17 | Isao Kato | Exhaust emission contlol device |
| CN102042063A (en) * | 2010-09-30 | 2011-05-04 | 中国人民解放军军事交通学院 | Atomizing jet-spray device for reducing agent for purifying exhaust nitric oxide of diesel engine |
| CN105275556A (en) * | 2014-07-10 | 2016-01-27 | 无锡国煤重工机械有限公司 | Control system for water adding tank of explosion-proof diesel engine |
| CN205744066U (en) * | 2016-06-01 | 2016-11-30 | 南昌洪乐汽车配件有限公司 | A kind of Novel automobile exhaust pipe with purifier |
| CN106014573A (en) * | 2016-06-28 | 2016-10-12 | 芜湖澳奔玛汽车部件有限公司 | Automobile exhaust purification device |
| CN208010433U (en) * | 2018-02-26 | 2018-10-26 | 华南理工大学 | A kind of centrifugal diesel engine exhaust gas purification device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318849A (en) * | 2019-06-21 | 2019-10-11 | 东莞理工学院城市学院 | The particle separator of water jet absorption diesel engine vent gas in a kind of helix tube |
| CN110541743A (en) * | 2019-09-29 | 2019-12-06 | 华南理工大学 | Spiral diesel engine tail gas purification device and purification method thereof |
| CN110541743B (en) * | 2019-09-29 | 2024-02-27 | 华南理工大学 | Spiral diesel engine tail gas purifying device and purifying method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108301902B (en) | 2023-09-26 |
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