CN106988838A - A kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system - Google Patents
A kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system Download PDFInfo
- Publication number
- CN106988838A CN106988838A CN201710307599.7A CN201710307599A CN106988838A CN 106988838 A CN106988838 A CN 106988838A CN 201710307599 A CN201710307599 A CN 201710307599A CN 106988838 A CN106988838 A CN 106988838A
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- Prior art keywords
- urea
- internal combustion
- pipeline
- pipe
- drt
- Prior art date
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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
- 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
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
-
- 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
-
- 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
- F01N2610/1486—Means to prevent the substance from freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system, the front end of the pipe-line system is provided with water inlet manifold, one end insertion connection cooling water of internal combustion engine pipeline of the water inlet manifold, warm water in cooling water of internal combustion engine pipeline is transported to urea box, the urea cycle in urea box is heated；The warm water in cooling water of internal combustion engine pipeline is transported to DRT pipes simultaneously, the urea injection apparatus cooling in the DRT pipes 3 in internal combustion engine high-temperature exhaust air system is pointed to.The rear end of the cooling water pipeline is communicated to the water return pipeline of cooling water of internal combustion engine pipeline from the delivery port of DRT pipes, forms the closed circuit circulatory system of cooling water pipeline.The present invention improves internal combustion engineering machinery exhaust gas processing device reliability, it is ensured that for the timely and effective supply after-treatment device of urea liquid energy of chemical reaction, the tail gas of discharge is met standard requirement.Pipeline arrangement of the present invention is clear, and pipeline connection is reliable, easy to assemble.
Description
Technical field
The invention belongs to internal combustion engineering machinery field, specifically, it is related to a kind of internal combustion engineering machinery exhaust aftertreatment
Pipe-line system.
Background technology
Internal combustion engine producer is in order to control the oxynitrides in tail gas, and majority uses SCR technology route, wherein SCR device
Reduction reaction is carried out in the presence of catalyst for oxynitrides and the mixed gas of urea liquid, it is converted into nitrogen
Gas and water.
It can cause pipeline blockage because urea liquid is crystallized at low ambient temperatures, cause urea pump effectively to provide urea
Solution is used to chemically react, and causes discharge not up to standard；And the injection apparatus for the DRT pipes of urea liquid is connected on blast pipe
In the system of road, its temperature is very high, to ensure injection apparatus reliability, it is necessary to carry out cooling processing to it.
After-treatment system includes three sections of urea pipes altogether, three that pipeline blockage, pipeline leakage and pipeline bending easily occur
Class failure.Normally due to urea crystals or urea quality difference cause pipeline blockage, urea can be influenceed to spray and build pressure, cause discharge
It is not up to standard；Pipe interface model or sealing joint are bad, pipeline aging or abrasion, cause urea to be revealed；Pipeline bending can make
Pressure failure or ejection failure are built into urea, causes discharge not up to standard.
Heating system includes water and heated and electrical heating, and wherein electrical heating is because relay is more, wire harness is more, adding thermal resistance
Silk is more, so fault rate is higher.It is mainly shown as relay damaged, resistive heater open circuit and wire harness open circuit, short circuit etc..Water
Heating may cause urea box heat spent, urea box temperature is too low due to magnetic valve mechanical breakdown, such as abrasion, stuck etc.,
Urea box continuous heating, urea temperature may also be caused too high, urea volatilization causes discharge not up to standard.
The content of the invention
It is a primary object of the present invention in view of the above-mentioned problems, there is provided a kind of internal combustion engineering machinery exhaust aftertreatment pipeline
System.
A kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system, including urea box 1, urea pump 2, DRT pipes 3 and cooling water
Pipeline 4.The urea pump 2 draws urea from urea box 1, then is transported to DRT pipes 3.The front end of the cooling water pipeline 4 and interior
The insertion of combustion engine cooling water pipeline is connected, and the warm water in cooling water of internal combustion engine pipeline is transported into urea box 1, to the urine in urea box
Plain circulating-heating, while the warm water in cooling water of internal combustion engine pipeline is transported into DRT pipes 3, is pointed to internal combustion engine high-temperature exhaust air system
Urea injection apparatus cooling in DRT pipes 3 in system.The rear end of the cooling water pipeline 4 is communicated to from the delivery port of DRT pipes 3
The water return pipeline of cooling water of internal combustion engine pipeline, forms the closed circuit circulatory system of cooling water pipeline 4.Set in the cooling water pipeline 4
There is temperature control electromagnetic 49, the control of temperature control electromagnetic 49 enters the temperature of the warm water of urea box 1.
The technical scheme further limited is as follows：
The top of urea box 1 is provided with the integrated lid of pipeline, and the pipeline is integrated to be covered provided with water inlet interface 11, water outlet mouthpiece
12nd, inhale urea interface 13, return urea interface 14 and temperature and urea liquid level sensor 15.The water inlet interface 11, water outlet mouthpiece
12 and urea box 1 in circulating cooling water route insertion connection；It is described to inhale urea interface 13, return urea interface 14 and urea pump 2
Import, outlet insertion connection.The temperature signal of urea in the temperature and the sensing urea box 1 of urea liquid level sensor 15, and will
Temperature signal is transported to the temperature control electromagnetic 49.The urea box 1 is provided with anchor ear 16 and bracket 17, and the anchor ear 16 is by urea
Case 1 is fixed on bracket 17, and is installed to by bracket 17 in the frame of internal combustion engineering machinery.
The urea pump 2 is provided with urea suction pipe 21, urea return pipe 22, urea supply pipe 23 and fixed support 24.The urine
Plain suction pipe 21, urea return pipe 22 respectively with inhale urea interface 13, return the insertion of urea interface 14 be connected, the urea supply pipe 23 and
The urea import insertion connection of DRT pipes 3.Urea pump 2 is fixed on fixed support 24, and is connected to by the fixed support 24
In the frame of internal combustion engineering machinery.
The DRT pipes 3 are provided with DRT water inlet tubes mouthful 31, DRT pipes delivery port 32, DRT pipe urea import 33.The DRT pipes enter
The mouth of a river 31 is connected with cooling water of internal combustion engine pipeline insertion, and the DRT pipes delivery port 32 is communicated to returning for cooling water of internal combustion engine pipeline
Water lines, the DRT pipes urea import 33 is connected with the insertion of urea supply pipe 23.
The cooling water pipeline 4 is provided with water inlet manifold 41, one end insertion connection cooling water of internal combustion engine of water inlet manifold 41
Pipeline, the other end connects a port of the first breeches joint 47, and the difference insertion connection of the another two port of the first breeches joint 47 connects
Siphunculus 42 and urea box water inlet pipe 43.The another port of the communicating pipe 42 and the port of urea box outlet pipe 44 and the 2nd Y types
Two port insertion connections of joint 48, the one of another port insertion connection DRT water inlet tubes pipe 45 of the second breeches joint 48
End, the other end of DRT water inlet tubes pipe 45 is connected with DRT water inlet tube mouthful insertions.The DRT pipes delivery port insertion connection DRT pipes go out
One end of water pipe 46, the other end of pipe outlet pipe 46 is connected with cooling water of internal combustion engine pipeline insertion.
One temperature control electromagnetic 49 of series connection in the middle of the urea box water inlet pipe 43.
The cooling water pipeline 4 is provided with pipeline fixed mount 401, by the pipeline fixed mount 401 by cooling water pipeline 4
On body fixed to internal combustion engine.
The urea pump 2 is electric control pump, and provided with forward and backward switch, when internal combustion engine is flame-out, reversal switch is opened, pipeline
In the urea liquid that does not consume in time suck back urea box.
The method have the benefit that：
(1) present invention is heated using the warm water in internal combustion engine cylinder jacket to the urea liquid in urea box, it is to avoid low
Under warm environment, urea liquid crystallization causes after-treatment device effectively to handle tail gas.
(2) provided with temperature control electromagnetic according to the real-time break-make of temperature requirement control piper or aperture, control coolant rate is big
It is small.
(3) warm water in cooling water pipeline system is cooled down to DRT pipes, it is ensured that injection apparatus reliability, and it connects
The quick connector of head instant-plugging, it is easy to connection and maintenance.
(4) urea pump used in the present invention is electric control pump, when internal combustion engine is flame-out, controller control urea pump reversion, pipe
Lu Zhongwei consume in time urea liquid sucks back urea box.
(5) present invention provides a kind of internal combustion engineering machinery post processing pipe-line system arrangement, and program pipeline arrangement is clear
Clear, pipeline connection is reliable, easy to assemble.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is urea box annex schematic diagram.
Fig. 3 is DRT pipe interface tube structural representations.
Fig. 4 is cooling water pipeline structural representation.
Fig. 5 is DRT pipe pipeline structure schematic diagrames.
Sequence number in upper figure：
Urea box 1, water inlet interface 11, water outlet mouthpiece 12, suction urea interface 13, time urea interface 14, temperature and urea solution
Level sensor 15, anchor ear 16, bracket 17；
Urea pump 2, urea suction pipe 21, urea return pipe 22, urea supply pipe 23, fixed support 24；
DRT pipes 3, DRT water inlet tubes mouthful 31, DRT pipes delivery port 32, DRT pipe urea import 33；
Cooling water pipeline 4, water inlet manifold 41, communicating pipe 42, urea box water inlet pipe 43, urea box outlet pipe 44, DRT pipes enter
Water pipe 45, DRT pipes outlet pipe 46, the first breeches joint 47, the second breeches joint 48, temperature control electromagnetic 49, pipeline fixed mount 401.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is further described by embodiment.
Embodiment
Referring to Fig. 1, a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system, including urea box 1, urea pump 2, DRT pipes 3
With cooling water pipeline 4.
Referring to Fig. 2, the top of the urea box 1 is provided with the integrated lid of pipeline, the pipeline is integrated cover provided with water inlet interface 11,
Water outlet mouthpiece 12, suction urea interface 13, time urea interface 14 and temperature and urea liquid level sensor 15.The water inlet interface 11,
Circulating cooling water route insertion connection in water outlet mouthpiece 12 and urea box 1.The suction urea interface 13, time urea interface 14 and urine
Import, the outlet insertion connection of plain pump 2.The temperature letter of urea in the temperature and the sensing urea box 1 of urea liquid level sensor 15
Number, and temperature signal is transported to the temperature control electromagnetic 49.The urea box 1 is provided with anchor ear 16 and bracket 17, the anchor ear
16 are fixed on urea box 1 on bracket 17, and are installed to by bracket 17 in the frame of internal combustion engineering machinery.
Referring to Fig. 3, the DRT pipes 3 are provided with DRT water inlet tubes mouthful 31, DRT pipes delivery port 32, DRT pipe urea import 33.Institute
State DRT water inlet tubes mouthful 31 to be connected with cooling water of internal combustion engine pipeline insertion, the DRT pipes delivery port 32 is communicated to cooling water of internal combustion engine
The water return pipeline of pipeline, the DRT pipes urea import 33 is connected with the insertion of urea supply pipe 23.
Referring to Fig. 4, the cooling water pipeline 4 is provided with water inlet manifold 41, one end insertion connection internal combustion of water inlet manifold 41
Machine cooling water pipeline, the other end connects a port of the first breeches joint 47, and the another two port of the first breeches joint 47 is passed through respectively
Lead to siphunculus 42 in succession and urea box water inlet pipe 43.The another port of the communicating pipe 42 and the port of urea box outlet pipe 44 and
Two port insertion connections of the second breeches joint 48, another port insertion connection DRT water inlet tube pipe of the second breeches joint 48
45 one end, the other end of DRT water inlet tubes pipe 45 is connected with DRT water inlet tube mouthful insertions.The DRT pipes delivery port insertion connection
One end of DRT pipes outlet pipe 46, the other end of pipe outlet pipe 46 is connected with cooling water of internal combustion engine pipeline insertion.The urea box enters
One temperature control electromagnetic 49 of series connection in the middle of water pipe 43.
The cooling water pipeline 4 is provided with pipeline fixed mount 401, and pipeline fixed mount is set up by 150mm~200mm interval
401, by the pipeline fixed mount 401 by body of the cooling water pipeline 4 fixed to internal combustion engine.
Referring to Fig. 5, the urea pump 2 is provided with urea suction pipe 21, urea return pipe 22, urea supply pipe 23 and fixed support
24；The urea suction pipe 21, urea return pipe 22 are connected with inhaling urea interface 13, returning the insertion of urea interface 14 respectively, the urea
Supply pipe 23 is connected with the urea import insertion of DRT pipes 3.Urea pump 2 is fixed on fixed support 24, and passes through the fixed branch
Frame 24 is connected in the frame of internal combustion engineering machinery.
The urea pump 2 is electric control pump, and provided with forward and backward switch, when internal combustion engine is flame-out, reversal switch is opened, pipeline
In the urea liquid that does not consume in time suck back urea box, prevent urea solution from being crystallized in pipeline, cause pipeline blockage.
During work, the urea pump 2 draws urea from urea box 1, then is transported to DRT pipes 3.The cooling water pipeline 4
Front end one end insertion connection cooling water of internal combustion engine pipeline of water inlet manifold 41, cooler-water temperature herein is 80 °~90 °, will
Warm water in cooling water of internal combustion engine pipeline is transported to urea box 1, the urea cycle in urea box is heated, while internal combustion engine is cold
But the warm water in water lines is transported to DRT pipes 3, and (temperature generally exists the DRT pipes 3 for being pointed in internal combustion engine high-temperature exhaust air system
500 °~600 °) in urea injection apparatus cooling.The rear end of the cooling water pipeline 4 is communicated to interior from the delivery port of DRT pipes 3
The water return pipeline of combustion engine cooling water pipeline, forms the closed circuit circulatory system of cooling water pipeline 4.It is provided with the cooling water pipeline 4
Temperature control electromagnetic 49, the control of temperature control electromagnetic 49 enters the temperature of the warm water of urea box 1.
Structure, the shape of above content not to the present invention make any formal limitation.Every skill according to the present invention
Any simple modification, equivalent variations and modification that art is substantially made to above example, still fall within technical solution of the present invention
In the range of.
Claims (8)
1. a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system, it is characterised in that：Including urea box (1), urea pump (2),
DRT manages (3) and cooling water pipeline (4)；The urea pump (2) draws urea from urea box (1), then is transported to DRT pipes (3)；
The front end of the cooling water pipeline (4) and cooling water of internal combustion engine pipeline insertion connection, by the warm water in cooling water of internal combustion engine pipeline
Urea box (1) is transported to, the urea cycle in urea box is heated, while the warm water in cooling water of internal combustion engine pipeline is transported to
DRT manages (3), is pointed to the urea injection apparatus cooling in the DRT pipes (3) in internal combustion engine high-temperature exhaust air system；The cooling water
The rear end of pipeline (4) is communicated to the water return pipeline of cooling water of internal combustion engine pipeline from the DRT delivery ports for managing (3), forms cooling water pipe
The closed circuit circulatory system on road (4)；Temperature control electromagnetic (49), the temperature control electromagnetic (49) are provided with the cooling water pipeline (4)
Control enters the flow of urea box (1) warm water.
2. a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system according to claim 1, it is characterised in that：The urine
The integrated lid of pipeline is provided with the top of plain case (1), the pipeline is integrated to be covered provided with water inlet interface (11), water outlet mouthpiece (12), inhales urine
Plain interface (13), time urea interface (14) and temperature and urea liquid level sensor (15)；The water inlet interface (11), water outlet mouthpiece
(12) the circulating cooling water route insertion connection and in urea box (1)；The suction urea interface (13), time urea interface (14) and urine
Import, the outlet insertion connection of plain pump (2)；The temperature and urea liquid level sensor (15) sense urea box (1) interior urea
Temperature signal, and temperature signal is transported to the temperature control electromagnetic (49)；The urea box (1) is provided with anchor ear (16) and bracket
(17), urea box (1) is fixed on bracket (17) by the anchor ear (16), and is installed to internal combustion engineering machinery by bracket (17)
Frame on.
3. a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system according to claim 1, it is characterised in that：The urine
Plain pump (2) is provided with urea suction pipe (21), urea return pipe (22), urea supply pipe (23) and fixed support (24)；The urea is inhaled
Pipe (21), urea return pipe (22) are connected with inhaling urea interface (13), returning urea interface (14) insertion respectively, the urea supply pipe
(23) it is connected with the DRT urea import insertions for managing (3)；Urea pump (2) is fixed on fixed support (24), and passes through the fixation
Support (24) is connected in the frame of internal combustion engineering machinery.
4. a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system according to claim 1 or 3, it is characterised in that：Institute
DRT pipes (3) are stated provided with DRT water inlet tubes mouthful (31), DRT pipes delivery port (32), DRT pipe urea imports (33)；The DRT water inlet tubes
Mouth (31) is connected with cooling water of internal combustion engine pipeline insertion, and the DRT pipes delivery port (32) is communicated to cooling water of internal combustion engine pipeline
Water return pipeline, the DRT pipes urea import (33) is connected with urea supply pipe (23) insertion.
5. a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system according to claim 1, it is characterised in that：It is described cold
But water lines (4) are provided with water inlet manifold (41), and insertion connection cooling water of internal combustion engine pipeline in described water inlet manifold (41) one end is another
The a port of end the first breeches joint of connection (47), insertion connects pipe respectively for the first breeches joint (47) another two port
And urea box water inlet pipe (43) (42)；The another port of the communicating pipe (42) and the port and second of urea box outlet pipe (44)
Two port insertion connections of breeches joint (48), another port insertion connection DRT water inlet tube pipe of the second breeches joint (48)
(45) one end, the other end of DRT water inlet tubes pipe (45) is connected with DRT water inlet tube mouthful insertions；The DRT pipes delivery port insertion connects
One end of DRT pipes outlet pipe (46) is connect, the other end of pipe outlet pipe (46) is connected with cooling water of internal combustion engine pipeline insertion.
6. a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system according to claim 5, it is characterised in that：The urine
One temperature control electromagnetic (49) of series connection in the middle of plain case water inlet pipe (43).
7. a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system according to claim 1, it is characterised in that：It is described cold
But water lines (4) are provided with pipeline fixed mount (401), are fixed to cooling water pipeline (4) by the pipeline fixed mount (401)
On the body of internal combustion engine.
8. a kind of internal combustion engineering machinery exhaust aftertreatment pipe-line system according to claim 1, it is characterised in that：The urine
Plain pump (2) is electric control pump, and provided with forward and backward switch, when internal combustion engine is flame-out, reversal switch is opened, not consumption in time in pipeline
Urea liquid suck back urea box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307599.7A CN106988838B (en) | 2017-05-03 | 2017-05-03 | Exhaust aftertreatment pipeline system of internal combustion engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307599.7A CN106988838B (en) | 2017-05-03 | 2017-05-03 | Exhaust aftertreatment pipeline system of internal combustion engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106988838A true CN106988838A (en) | 2017-07-28 |
| CN106988838B CN106988838B (en) | 2023-07-25 |
Family
ID=59418395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710307599.7A Active CN106988838B (en) | 2017-05-03 | 2017-05-03 | Exhaust aftertreatment pipeline system of internal combustion engineering machinery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701269A (en) * | 2017-10-10 | 2018-02-16 | 广西玉柴机器股份有限公司 | Diesel engine post-processing system with hot type blue tube road |
| CN114215629A (en) * | 2021-12-02 | 2022-03-22 | 江铃汽车股份有限公司 | Emptying method of electronic control type urea injection system |
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| CN101798946A (en) * | 2010-02-23 | 2010-08-11 | 中国人民解放军军事交通学院 | Device and method for adding diesel urea solution |
| CA2785339A1 (en) * | 2009-12-21 | 2011-07-21 | General Electric Company | Emissions control systems and methods |
| CN102840014A (en) * | 2011-06-20 | 2012-12-26 | 杭州银轮科技有限公司 | Air-assisted injection system for diesel engine urea after-treatment SCR (Selective Catalytic Reduction) system |
| CN203515743U (en) * | 2013-10-08 | 2014-04-02 | 潍柴动力股份有限公司 | Urea pump water heating device for aftertreatment of engine tail gas |
| CN106523094A (en) * | 2016-12-29 | 2017-03-22 | 雷沃重工股份有限公司 | Control device for adjusting SCR temperature and agricultural machinery |
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2017
- 2017-05-03 CN CN201710307599.7A patent/CN106988838B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2785339A1 (en) * | 2009-12-21 | 2011-07-21 | General Electric Company | Emissions control systems and methods |
| CN101798946A (en) * | 2010-02-23 | 2010-08-11 | 中国人民解放军军事交通学院 | Device and method for adding diesel urea solution |
| CN102840014A (en) * | 2011-06-20 | 2012-12-26 | 杭州银轮科技有限公司 | Air-assisted injection system for diesel engine urea after-treatment SCR (Selective Catalytic Reduction) system |
| CN203515743U (en) * | 2013-10-08 | 2014-04-02 | 潍柴动力股份有限公司 | Urea pump water heating device for aftertreatment of engine tail gas |
| CN106523094A (en) * | 2016-12-29 | 2017-03-22 | 雷沃重工股份有限公司 | Control device for adjusting SCR temperature and agricultural machinery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701269A (en) * | 2017-10-10 | 2018-02-16 | 广西玉柴机器股份有限公司 | Diesel engine post-processing system with hot type blue tube road |
| CN114215629A (en) * | 2021-12-02 | 2022-03-22 | 江铃汽车股份有限公司 | Emptying method of electronic control type urea injection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106988838B (en) | 2023-07-25 |
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