CN110433658A - A kind of method and realization device of the improvement of diesel engine multiple stage nitrogen oxides - Google Patents
A kind of method and realization device of the improvement of diesel engine multiple stage nitrogen oxides Download PDFInfo
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- CN110433658A CN110433658A CN201910616162.0A CN201910616162A CN110433658A CN 110433658 A CN110433658 A CN 110433658A CN 201910616162 A CN201910616162 A CN 201910616162A CN 110433658 A CN110433658 A CN 110433658A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/05—Testing internal-combustion engines by combined monitoring of two or more different engine parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
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Abstract
The present invention proposes the method and realization device of a kind of diesel engine multiple stage nitrogen oxides improvement.Diesel engine bench is the essential part in diesel engine test production process.In order to solve the pollution problem of diesel engine bench, country has formulated atmosphere regulation to constrain the discharge of rack pollutant.A kind of apparatus system for realizing the above method, by multiple engine pedestals, distributed post-processing module, total smoke exhaust pipe, Centralizing inspection module composition, the scene suitable for the shared total air escape pipe of multiple diesel engine benches.Method is that the nitrogen oxides vent gas treatment of the rack diesel engine is independently carried out on each rack, and treated tail gas is on being aggregated into total exhaust pipe；Centralizing inspection module adjusts the nitrogen oxides treatment efficiency that each rack corresponds to exhaust gas processing device according to the current nitrogen oxides exhaust value of total air escape pipe and the relationship of atmosphere regulation limit value in real time automatically.
Description
Technical field
The invention belongs to diesel engine bench nitrogen oxides to administer field, specifically a kind of diesel engine multiple stage nitrogen oxides
(NOx) method and realization device administered.
Background technique
Engine producer needs to carry out various performance tests, factory to product before product export during the manufacturing
Family according to laws and regulations requirement establishes rack and according to the performance of relevant testing process test engine model machine.Diesel engine bench is bavin
Oil machine essential part in test production process, main function are simulation diesel engine operation tests, detect diesel engine matter
Whether amount is up to standard, and operational process whether there is problem, reliability demonstration etc..The detection rack of engine producer is usually by more
Engine specimen collectively constitutes.During producer carries out engine bench test, a large amount of discharges can be discharged in engine, must according to laws and regulations requirement
The emission of rack must be controlled.
Currently, local government, which obtains, strictly to be managed, and the treating tail gas of diesel vehicle is as China's diesel vehicle policy constantly improve
Good result is achieved, pressure is administered and is gradually reduced.It is raw that the center of gravity of environmental improvement has further been transferred to diesel engine by country
It produces enterprise and proposes a series of atmosphere regulations for diesel engine bench used in diesel engine production test procedure to be limited
System.Such as: GB16297-2017 " atmosphere pollutants emission standards ".In order to meet the limit value of atmosphere laws and regulations requirement, diesel oil board
The treating tail gas of frame has just put on schedule.
Existing diesel engine multiple stage nitrogen oxides (NOx) Treatment process scheme, is according to traditional power plant, steel mill cigarette
Gas disposal improves.Tail gas is usually all focused on a place by the NOx processing of power plant, steel mill at present, and at this
Region is focused on.The exhaust gas volumn of steel mill, power plant is big and stablizes, therefore vent gas treatment is primarily upon stable state efficiency.
Since the bench scale of engine production producer is larger, majority shares an exhaust main using more engines
Mode, therefore the treating tail gas of rack is carried out primarily directed to exhaust pipe.Due to being usually when diesel engine bench application
Several above diesel engines are discharged into atmosphere by an exhaust pipe, and these diesel engine working conditions are not identical, cause exhaust total
The mass flow and NOx concentration of nitrogen oxides (NOx) change larger in pipe.
General producer's engine pedestal treating tail gas scheme uses centralized processing mode for exhaust main.But by
There are individual difference when every engine operation, more diesel engines share there is also in the scene of an exhaust pipe it is many
Situations such as problem such as diesel engine power is inconsistent, part diesel engine does not work；And centralized processing system working principle be according to
Maximum capacity designs maximum processing capability, and it is bigger than normal necessarily to lead to handle range, so that the smallest control precision is not high, simultaneously
Lead to high expensive.Therefore, this centralized processing method cannot effectively control rack discharge, exhaust emissions excessive problem occur.
The present invention be directed to more diesel engines share an exhaust pipe, based on multiple stage vent gas treatment be required to it is adaptive this
Kind feature, carries out nitrogen oxides (NOx) processing, and realization can adapt to the power condition changing and can be improved that more parallel connections are likely to occur
System effectiveness.
Summary of the invention
The present invention be directed to existing diesel engine multiple stage nitrogen oxides (NOx) to administer defect, pass through Centralizing inspection module
NOx concentration and mass flow to single rack are collected, and the NOx concentration and mass flow of exhaust main are calculated；According to atmosphere method
The limit value of concentration and mass flow as defined in NOx in rule determines whether NOx concentration and total mass flow rate are up to standard.It is tied according to judgement
Fruit, Centralizing inspection module will distribute the transfer efficiency target value of each rack selective catalytic reduction (SCR) system, each rack
Control module is handled each diesel engine according to desired transfer efficiency.
What the purpose of the present invention was achieved through the following technical solutions.
The present invention relates to a kind of methods that multiple stage nitrogen oxides (NOx) is administered, which comprises the following steps:
The each rack NOx concentration of Centralizing inspection module collection and mass flow information, and it is current to summarize calculating exhaust main
NOx concentration and mass flow；
By the mass flow of exhaust main measurement compared with atmosphere regulation limit value, determine whether current NOx mass flow reaches
Mark；
If it is not up to standard to measure NOx mass flow, distributed control module controls in multiple stage and discharges NOx mass flow most
The corresponding after-treatment device of big rack works according to limiting efficiency (diesel engine post-processing system efficiency is up to 95%), remaining
Rack corresponds to after-treatment device according to normal efficiency (diesel engine post-processing system normal operating efficiency is 60%) work.
Determine whether the NOx mass flow of exhaust main is up to standard, if it does not meet the standards, then controls NOx mass in multiple stage again
The corresponding after-treatment device of rack that flow is second works according to limiting efficiency；
If the NOx mass flow of exhaust main is still below standard, above-mentioned circulation is repeated, until NOx matter in control multiple stage
Amount flow be n-th the corresponding after-treatment device of rack work according to limiting efficiency, remaining rack correspond to after-treatment device according to
Normal efficiency work, the NOx mass flow of exhaust main are up to standard；
If NOx total mass flow rate is up to standard, start to determine whether NOx concentration is up to standard；
If NOx concentration is not up to standard, distributed control module controls the rack that NOx mass flow is (n+1)th in multiple stage
Corresponding after-treatment device works according to limiting efficiency, remaining rack corresponds to after-treatment device and works according to normal efficiency.
Determine whether NOx concentration is up to standard, if it does not meet the standards, then repeats above-mentioned circulation again, until NOx matter in control multiple stage
The corresponding after-treatment device of rack that amount flow is the n-th+n works according to limiting efficiency, remaining rack corresponds to after-treatment device and presses
It works according to normal efficiency, the NOx concentration of exhaust main is up to standard；
The distribution method of each rack treatment effeciency involved in the sub-step, which is characterized in that meet and " discharge maximum rack
Emphasis processing, remaining rack are normally handled, qualified discharge.If below standard, and circuit sequentially until up to standard " principle.
The corresponding after-treatment device of the distributed control module control maximum rack of mass flow takes maximal work efficiency
(efficiency of post treatment reaches threshold limit value 95%), control the corresponding after-treatment device of remaining rack take normal operating efficiency (after
60%) treatment effeciency reaches.Meet and emphasis processing, the principle that remaining rack is normally handled are carried out to the maximum rack of discharge.
Determine whether NOx total mass flow rate is up to standard, if it does not meet the standards, carries out second and recycle, then controlling NOx mass flow is
Second rack corresponds to after-treatment device and works according to limiting efficiency.
If it is determined that NOx total mass flow rate is still below standard, circular treatment is carried out on principle, until in control multiple stage
The corresponding after-treatment device of rack that NOx mass flow is n-th works according to limiting efficiency, remaining rack corresponds to after-treatment device
It works according to normal efficiency, the NOx mass flow of exhaust main is up to standard；
Determine whether NOx concentration is up to standard.If NOx concentration is not up to standard, according to the principle circuited sequentially, distributed control module
The corresponding after-treatment device of rack that NOx mass flow is the n-th+n in control multiple stage works according to limiting efficiency, remaining rack
Corresponding after-treatment device works according to normal efficiency, until the NOx concentration of exhaust main is up to standard；
In addition, the present invention also proposes a kind of apparatus system for realizing the above method, including multiple engine pedestals, it is distributed
Post-processing module, Centralizing inspection module.
The above method realization device, is controlled using the principle of distributed AC servo system.
The multiple threst stand belongs to tail gas source.
The distributed control module, including inlet air flow meter, control module, communication module, urea metering module, urea
Case, upstream and downstream nitrogen oxide sensor, exhaust temperature sensor, differential pressure pickup, heating module, oxidation catalyst (DOC), SCR, ammonia are urged
Change device (ASC), power supply.
Main function is to send the letter in real time such as nitrogen oxides (NOx) delivery temperature, mass flow and NOx concentration measured
Centralizing inspection module is ceased, after the calculating of Centralizing inspection module shares out the work, controls urea injecting quantity, handles corresponding rack nitrogen
Oxide (NOx).
The Centralizing inspection module, including Centralizing inspection center, nitrogen oxide sensor and ammonia extract detection module at smoke evacuation.
According to the information that distributed control module is sent, determination processing index carries out the control of efficiency of post treatment, monitors at total smoke exhaust pipe
Whether NOx concentration and mass flow are up to standard.
Total smoke exhaust pipe, emission compliance nitrogen oxides (NOx).Nitrogen oxide sensor at discharge detects NOx at total smoke exhaust pipe
Concentration and mass flow determine whether nitrogen oxides (NOx) discharges by Centralizing inspection module.
The present invention has the advantages that
Based on the principle of centralization monitoring distributed AC servo system, by Centralizing inspection module collection, NOx is dense at smoke explorer
Degree and mass flow realize Centralizing inspection.By the distributed AC servo system between Centralizing inspection module and multiple control modules, according to
Nitrogen oxides (NOx) the mass flow size of rack carries out the control of efficiency of post treatment, realizes distributed AC servo system.It can solve
When the nitrogen oxides of processing multiple stage big flow and instability of flow, nitrogen oxides treatment effect is more preferable, and nitrogen oxides is administered more
Add precisely.
Detailed description of the invention
Fig. 1 is the device figure that prior art multiple stage nitrogen oxides is administered.
Fig. 2 is the realization device figure that the present invention is applied to that multiple stage nitrogen oxides (NOx) is administered.
Fig. 3 is the schematic diagram of centralization supervision distributed AC servo system of the invention.
Fig. 4 is the logical schematic of nitrogen oxides of the present invention (NOx) administering method.
Specific embodiment
According to Fig. 1, prior art multiple stage nitrogen oxides (NOx) controlling device figure, including inlet air flow meter, communication
Module, Centralizing inspection center, control module, upstream and downstream nitrogen oxide sensor, nitrogen oxide sensor, exhaust temperature sensor, pressure difference at discharge
Sensor, power supply, urea metering module, urea box, SCR, ASC, heating module, DOC, blower etc. are constituted.It is characterized in that, In
After total smoke exhaust pipe, Centralizing inspection, processing system are set, Centralizing inspection and processing are carried out to multiple stage nitrogen oxides (NOx).
According to Fig.2, a kind of diesel engine multiple stage nitrogen oxides (NOx) administers realization device figure.By prior art side
A control module in case is separated into multiple distributed control modules, each distributed control module is just for single rack
Control.
According to Fig.2, in distributed control module, the NOx quality stream of the charge flow rate measurement order rack
Amount；The upstream nitrogen oxide sensor measures nitrogen oxygen concentration for calculating of the control module to urea injecting quantity；Downstream nitrogen oxygen sensing
Device measures rack treated nitrogen oxygen concentration, calculates NOx emission rate, monitors the purification efficiency of NOx；The differential pressure pickup is surveyed
Determine nitrogen oxides (NOx) pressure difference before and after the processing；After mild nitrogen oxides (NOx) processing is initially arranged in the exhaust temperature sensor measurement
Temperature；The heating module is the initial row temperature measured according to exhaust temperature sensor, to adjust delivery temperature, locates SCR always
In efficient process state.
The oxidation catalyst (DOC) can effectively remove CO, HC, and realize NO → NO2 conversion and adjustment NO2/
NO ratio, significant increase SCR Efficiency at Low Temperature；The SCR handles the carbon monoxide in tail gas (CO), hydrocarbon (HC)
And particle (PM), main is the higher nitrogen oxides of content (NOx) in processing tail gas.
The ammonia catalyst converter ASC is that the ammonia generated is reacted with NOx for handling urea；Urea box is to provide SCR injection
The device of urea；The urea injecting quantity that urea metering module calculation processing rack NOx needs.Communication module keeps each distribution
The communication connection of formula control module and Centralizing inspection center records the operating parameter of all devices in real time and monitors all set in real time
Standby operating parameter；
According to Fig.3, Centralizing inspection module collects each rack nitrogen oxides (NOx) information by multiple control modules,
After determining to calculate, workload allocations are carried out by control module, control module controls after-treatment system and sprays urea, place
It manages corresponding rack nitrogen oxides (NOx), the nitrogen oxide sensor in Centralizing inspection module is used to measure the concentration information of last NOx,
Control discharge.
The each rack NOx concentration of Centralizing inspection module collection and mass flow information, and it is current to summarize calculating exhaust main
NOx concentration and mass flow；
By the mass flow of exhaust main measurement compared with atmosphere regulation limit value, determine whether current NOx mass flow reaches
Mark；
If it is not up to standard to measure NOx mass flow, distributed control module controls in multiple stage and discharges NOx mass flow most
The corresponding after-treatment device of big rack works according to limiting efficiency (diesel engine post-processing system efficiency is up to 95%), remaining
Rack corresponds to after-treatment device according to normal efficiency (diesel engine post-processing system normal operating efficiency is 60%) work.
Determine whether the NOx mass flow of exhaust main is up to standard, if it does not meet the standards, then controls NOx mass in multiple stage again
The corresponding after-treatment device of rack that flow is second works according to limiting efficiency；
If the NOx mass flow of exhaust main is still below standard, above-mentioned circulation is repeated, until NOx matter in control multiple stage
Amount flow be n-th the corresponding after-treatment device of rack work according to limiting efficiency, remaining rack correspond to after-treatment device according to
Normal efficiency work, the NOx mass flow of exhaust main are up to standard；
If NOx total mass flow rate is up to standard, start to determine whether NOx concentration is up to standard；
If NOx concentration is not up to standard, distributed control module controls the rack that NOx mass flow is (n+1)th in multiple stage
Corresponding after-treatment device works according to limiting efficiency, remaining rack corresponds to after-treatment device and works according to normal efficiency.
Determine whether NOx concentration is up to standard, if it does not meet the standards, then repeats above-mentioned circulation again, until NOx matter in control multiple stage
The corresponding after-treatment device of rack that amount flow is the n-th+n works according to limiting efficiency, remaining rack corresponds to after-treatment device and presses
It works according to normal efficiency, the NOx concentration of exhaust main is up to standard；
Finally, the concentration and mass flow of nitrogen oxides all reach atmosphere statutory standard, direct emission.
Claims (2)
1. a kind of method that diesel engine multiple stage nitrogen oxides is administered, it is characterised in that: in each diesel engine independent process nitrogen
Oxide (NOx) tail gas is concentrated through an exhaust pipe discharge after processing；
Nitrogen oxides (NOx) treatment effeciency of each diesel engine is adjusted in real time according to the discharge current value of exhaust main, is adjusted
Whole step is:
The each rack NOx concentration of Centralizing inspection module collection and mass flow information, and summarize and calculate the current NOx of exhaust main
Concentration and mass flow；
By the mass flow of exhaust main measurement compared with atmosphere regulation limit value, determine whether current NOx mass flow is up to standard；
If it is not up to standard to measure NOx mass flow, it is maximum that distributed control module controls discharge NOx mass flow in multiple stage
The corresponding after-treatment device of rack works according to limiting efficiency, remaining rack corresponds to after-treatment device and works according to normal efficiency；
Diesel engine post-processing system efficiency is up to 95%, and diesel engine post-processing system normal operating efficiency is 60%；
Determine whether the NOx mass flow of exhaust main is up to standard, if it does not meet the standards, then controls NOx mass flow in multiple stage again
It works for the second corresponding after-treatment device of rack according to limiting efficiency；
If the NOx mass flow of exhaust main is still below standard, above-mentioned circulation is repeated, until NOx quality stream in control multiple stage
Amount works for the n-th corresponding after-treatment device of rack according to limiting efficiency, remaining rack corresponds to after-treatment device according to normal
Efficiency work, the NOx mass flow of exhaust main are up to standard；
If NOx total mass flow rate is up to standard, start to determine whether NOx concentration is up to standard；
If NOx concentration is not up to standard, it is corresponding that distributed control module controls the rack that NOx mass flow is (n+1)th in multiple stage
After-treatment device work according to limiting efficiency, remaining rack corresponds to after-treatment device and works according to normal efficiency；
Determine whether NOx concentration is up to standard, if it does not meet the standards, then repeats above-mentioned circulation again, until NOx quality stream in control multiple stage
Amount is that the corresponding after-treatment device of rack of the n-th+n works according to limiting efficiency, remaining rack corresponds to after-treatment device according to just
Normal efficiency work, the NOx concentration of exhaust main are up to standard；Diesel engine post-processing system efficiency is up to 95%, diesel engine after treatment
System worked well efficiency is 60%.
2. a kind of system for realizing claim 1 the method, which is characterized in that including multiple threst stands, rack
Corresponding distributed processing modules, total smoke exhaust pipe, Centralizing inspection module；Distributed control module includes inlet air flow meter, control mould
Block, communication module, urea metering module, urea box, upstream and downstream nitrogen oxide sensor, exhaust temperature sensor, differential pressure pickup, heated mould
Block, oxidation catalyst (DOC), selective catalysis restore (SCR), ammonia catalyst converter (ASC), power supply；Centralizing inspection module includes collection
Middle monitoring center, ammonia sampling and detection module and nitrogen oxide sensor.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111135716A (en) * | 2019-12-28 | 2020-05-12 | 一汽解放汽车有限公司 | Exhaust pollutant monitoring and purifying device |
| CN111389188A (en) * | 2020-04-08 | 2020-07-10 | 北京工业大学 | Optimal control method suitable for parallel common exhaust pipes of multiple NOx emission sources |
| CN114991920A (en) * | 2022-05-23 | 2022-09-02 | 重庆文理学院 | Treatment system for nitrogen oxide in diesel engine automobile exhaust |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10252450A (en) * | 1997-03-15 | 1998-09-22 | Toyota Central Res & Dev Lab Inc | Detector of combustible component in exhaust gas and catalyst activation capacity judging device |
| CN101278110A (en) * | 2005-09-29 | 2008-10-01 | 沃尔沃拉斯特瓦格纳公司 | Diagnosis method for exhaustion reprocessing system |
| US8375700B2 (en) * | 2010-03-30 | 2013-02-19 | Detroit Diesel Corporation | Apparatus and method for monitoring oxidation catalyst functionality |
| CN103149032A (en) * | 2013-01-31 | 2013-06-12 | 浙江吉利汽车研究院有限公司杭州分公司 | Dynamic detection method of engine exhaust pressure and flux |
| CN105579677A (en) * | 2013-09-25 | 2016-05-11 | 丰田自动车株式会社 | Diagnostic device for exhaust-gas purification device |
| CN107376645A (en) * | 2017-06-14 | 2017-11-24 | 北京福田戴姆勒汽车有限公司 | Exhaust treatment system |
| CN107870092A (en) * | 2017-11-13 | 2018-04-03 | 上海为默机械科技有限公司 | A kind of testboard bay for simulated engine discharge |
| CN109339912A (en) * | 2018-10-22 | 2019-02-15 | 北京工业大学 | A kind of method and device suitable for the control of high-power diesel engine nitrogen oxides |
| CN109883718A (en) * | 2019-03-29 | 2019-06-14 | 天津大学 | Single cylinder diesel engine bench test system based on integrated cylinder cover multi-cylinder diesel engine |
-
2019
- 2019-07-09 CN CN201910616162.0A patent/CN110433658B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10252450A (en) * | 1997-03-15 | 1998-09-22 | Toyota Central Res & Dev Lab Inc | Detector of combustible component in exhaust gas and catalyst activation capacity judging device |
| CN101278110A (en) * | 2005-09-29 | 2008-10-01 | 沃尔沃拉斯特瓦格纳公司 | Diagnosis method for exhaustion reprocessing system |
| US8375700B2 (en) * | 2010-03-30 | 2013-02-19 | Detroit Diesel Corporation | Apparatus and method for monitoring oxidation catalyst functionality |
| CN103149032A (en) * | 2013-01-31 | 2013-06-12 | 浙江吉利汽车研究院有限公司杭州分公司 | Dynamic detection method of engine exhaust pressure and flux |
| CN105579677A (en) * | 2013-09-25 | 2016-05-11 | 丰田自动车株式会社 | Diagnostic device for exhaust-gas purification device |
| CN107376645A (en) * | 2017-06-14 | 2017-11-24 | 北京福田戴姆勒汽车有限公司 | Exhaust treatment system |
| CN107870092A (en) * | 2017-11-13 | 2018-04-03 | 上海为默机械科技有限公司 | A kind of testboard bay for simulated engine discharge |
| CN109339912A (en) * | 2018-10-22 | 2019-02-15 | 北京工业大学 | A kind of method and device suitable for the control of high-power diesel engine nitrogen oxides |
| CN109883718A (en) * | 2019-03-29 | 2019-06-14 | 天津大学 | Single cylinder diesel engine bench test system based on integrated cylinder cover multi-cylinder diesel engine |
Non-Patent Citations (1)
| Title |
|---|
| 黄英奇等: "用数学规划法求解天然气管道最优分配问题 ", 《北京化工大学学报(自然科学版)》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111135716A (en) * | 2019-12-28 | 2020-05-12 | 一汽解放汽车有限公司 | Exhaust pollutant monitoring and purifying device |
| CN111135716B (en) * | 2019-12-28 | 2022-04-08 | 一汽解放汽车有限公司 | Exhaust pollutant monitoring and purifying device |
| CN111389188A (en) * | 2020-04-08 | 2020-07-10 | 北京工业大学 | Optimal control method suitable for parallel common exhaust pipes of multiple NOx emission sources |
| CN111389188B (en) * | 2020-04-08 | 2022-04-19 | 北京工业大学 | Optimal control method suitable for parallel common exhaust pipes of multiple NOx emission sources |
| CN114991920A (en) * | 2022-05-23 | 2022-09-02 | 重庆文理学院 | Treatment system for nitrogen oxide in diesel engine automobile exhaust |
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