CN110308005A - Fractions of Diesel Engine Exhaust Particulates object generation system and Fractions of Diesel Engine Exhaust Particulates object analogy method - Google Patents
Fractions of Diesel Engine Exhaust Particulates object generation system and Fractions of Diesel Engine Exhaust Particulates object analogy method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000002245 particle Substances 0.000 claims abstract description 79
- 238000009826 distribution Methods 0.000 claims abstract description 76
- 238000002347 injection Methods 0.000 claims abstract description 38
- 239000007924 injection Substances 0.000 claims abstract description 38
- 239000007789 gas Substances 0.000 claims description 119
- 239000011261 inert gas Substances 0.000 claims description 100
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 75
- 239000001301 oxygen Substances 0.000 claims description 75
- 229910052760 oxygen Inorganic materials 0.000 claims description 75
- 239000013618 particulate matter Substances 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 4
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- 235000008434 ginseng Nutrition 0.000 claims description 3
- 230000036760 body temperature Effects 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- 230000009467 reduction Effects 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000002283 diesel fuel Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 3
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- 230000004048 modification Effects 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
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- 235000013399 edible fruits Nutrition 0.000 description 2
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- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
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- 239000003344 environmental pollutant Substances 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
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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
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
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Abstract
The present invention provides a kind of Fractions of Diesel Engine Exhaust Particulates object generation system, comprising: diesel-driven generator has air inlet pipeline and gas exhaust piping；Injection timing adjusts module, is connected with diesel-driven generator, for adjusting the injection timing of diesel-driven generator；Air inlet adjustment module, is connected with air inlet pipeline, for adjusting the air inlet of diesel-driven generator；It is vented adjustment module, is connected with gas exhaust piping, for adjusting the exhaust of diesel-driven generator；Load regulation module, is connected with diesel-driven generator, for adjusting the load of diesel-driven generator.Fractions of Diesel Engine Exhaust Particulates object generation system of the invention can simulated target diesel engine completely real operating environments to ensure that its emission is consistent with the component of the emission of target diesel engine and exhaust particulate object particle diameter distribution, improve and assess accuracy；It is assessed compared to real vehicle, the present invention can significantly reduce assessed cost.Appraisal procedure of the invention is easy to operate, applied widely, and assessed cost is low, and assessment accuracy greatly improves.
Description
Technical field
The present invention relates to diesel engine realms, more particularly to a kind of Fractions of Diesel Engine Exhaust Particulates object generation system and diesel oil
Tail gas particulate matter analogy method.
Background technique
Including vehicle, ship and agricultural machinery, engineering machinery and port make it is mechanical including it is all kinds of with the mobile bavin of non-rice habitats
Oil machine tool engine is very important to the effect of the national economic development.But since the work of the direct-injection of diesel engine, compression ignition is former
Reason causes also to have discharged largely while providing strong impetus with particle using diesel engine as the various types of vehicles of power, ship
Each pollutant headed by object exacerbates the urban air-quality pollution in China, seriously endangers national healthy.
Recently as the leap of technology three times of diesel engine, turbocharging technology, in-cylinder direct-jet technology and Electrocontrolled high-pressure are total
The implementation of the measures such as the continuous promotion of maturation and fuel qualities of rail technology, the discharge amount of the diesel particulation in China persistently drop
It is low.But as discharge standard, such as the increasingly stringent and newly-increased of PM2.5 standard want the limit value of PN (particulate matter figureofmerit)
It asks, it is necessary to which diesel particulate object trap (Diesel Particulate Filter, diesel car tail gas refining are installed additional to diesel engine
Device) etc. after-treatment devices be just able to satisfy the continuous promotion of discharge standard.
Usually before the cleaning device of tail gas of diesel vehicle investment large-scale production of a model, manufacturer can be to its sample
It carries out particulate matter quantity PM, particulate matter quality PN emission reduction effect and durability to be assessed, just will do it after assessment is qualified formal
The design and producing of product.It at the same time also can be to be detected in order to assess the reduction performance of diesel automobile in use exhaust gas cleaner
One piece of progress testing experiment is cut into cleaning device of tail gas of diesel vehicle.
In order to carry out cleaning device of tail gas of diesel vehicle sample particulate matter emission reduction effect testing experiment, need simulation
Gas containing particulate matter just can be carried out corresponding evaluation test.Existing evaluation test method includes train experiment method and use
Method of the boiler-burner burning diesel oil to generate the simulated exhaust gas containing particulate matter, but all there is serious lack in both methods
It falls into.Such as it is too high using cost needed for real train test；And use the method for boiler-burner because of the burning mould of boiler-burner
The differences such as formula, ignition temperature and pressure cause the actual discharge tail gas of the tail gas generated using this method and diesel engine in component and
Particle size distribution etc. leads to not make accurate assessment there are larger difference.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of Fractions of Diesel Engine Exhaust Particulates produce
Raw system and Fractions of Diesel Engine Exhaust Particulates object analogy method, for solving in the prior art in assessment cleaning device of tail gas of diesel vehicle
Existing assessed cost is high when particulate matter emission reduction effect, and/or the problems such as assessment inaccuracy.
In order to achieve the above objects and other related objects, the present invention provides a kind of Fractions of Diesel Engine Exhaust Particulates object generation system,
It include: diesel-driven generator, the diesel-driven generator has air inlet pipeline and gas exhaust piping；Injection timing adjusts module, and described
Diesel-driven generator is connected, and for adjusting the injection timing of the diesel-driven generator, the injection timing adjustment module has more
A adjusting class；Air inlet adjustment module is connected with the air inlet pipeline, for adjusting the air inlet of the diesel-driven generator；Row
Gas adjustment module is connected with the gas exhaust piping, for adjusting the exhaust of the diesel-driven generator；Load regulation module, with
The diesel-driven generator is connected, for adjusting the load of the diesel-driven generator.
Optionally, the power of the diesel-driven generator is 3~10kW, injection timing adjustment module have -20CA, -
5 adjusting class such as 15CA, -10CA, -5CA and 0CA.
Optionally, the air inlet adjustment module includes oxygen supply unit, the first inert gas supply unit and the first gas
Pressure adjust unit, the oxygen supply unit, the first inert gas supply unit and the first air pressure adjustment unit with it is described into
Air pipe is connected；The oxygen supply unit is for supplying oxygen into the air inlet pipeline；First inert gas supplies
Answer unit for as needed into the air inlet pipeline supplying inert gas to change the oxygen content in the air inlet pipeline；
The first air pressure adjustment unit is used to adjust the gas pressure in the air inlet pipeline as needed so that the air inlet pipeline
Admission pressure can ensure that the diesel-driven generator is run in scope of design.
Optionally, the oxygen supply unit includes the first oxygen sensor and oxygen control valve, and first oxygen passes
Sensor is used to detect the oxygen content in the air inlet pipeline, and the oxygen control valve is used for the oxygen in the air inlet pipeline
Content is adjusted；The first inert gas supply unit includes that the first inert gas piping and the first inert gas control
Valve, first inert gas piping are connected with the air inlet pipeline, and first inert gas control valve is for adjusting the
The supply of one inert gas, to change the oxygen content in the air inlet pipeline；The first air pressure adjustment unit includes the
One pressure sensor and first pressure control valve, the first pressure sensor are used to detect the gas pressure in the air inlet pipeline
Power, the first pressure control valve are used to adjust the gas pressure in the air inlet pipeline.
Optionally, the oxygen supply unit oxygen content in the air inlet pipeline can be adjusted to 21%, 19%,
17%, 15% and 13%5 class.
Optionally, the exhaust adjustment module includes the second inert gas supply unit and the second air pressure adjustment unit；Institute
Stating the second inert gas supply unit includes the second inert gas piping and the second inert gas control valve, second indifferent gas
Body pipeline is connected with the gas exhaust piping, and second inert gas control valve is used to adjust the supply of the second inert gas
Amount, to change the exhaust components ratio in the gas exhaust piping；The second air pressure adjustment unit include second pressure sensor and
Second pressure control valve, the second pressure sensor are used to detect the gas pressure in the gas exhaust piping, second pressure
Force control valve is used to adjust the gas pressure in the gas exhaust piping to ensure that the diesel generation function works normally.
Optionally, the exhaust adjustment module further includes heating unit, the heating unit and second inert gas
Pipeline is connected, and the heating unit includes heater and temperature measuring set, and the temperature measuring set is for measuring described second
The second inert gas temperature in inert gas piping, the heater is for heating second inert gas.
Optionally, the load regulation module includes multiple relays and connects one to one with multiple relays
Multiple load units adjust the load of the diesel-driven generator by the connection or disconnection of the relay.
Optionally, the load regulation module can by the load regulation of the diesel-driven generator to 20%, 40% and 60%,
80%, 100%5 class.
Optionally, the Fractions of Diesel Engine Exhaust Particulates object generation system further includes central controller, the central controller and the air inlet
Adjustment module, the exhaust adjustment module and the load regulation module are connected.
The present invention also provides a kind of Fractions of Diesel Engine Exhaust Particulates object analogy method, the Fractions of Diesel Engine Exhaust Particulates object analogy method
Comprising steps of
The Fractions of Diesel Engine Exhaust Particulates object generation system as described in aforementioned either a program is provided；
Adjust the Fractions of Diesel Engine Exhaust Particulates object generation system the injection timing adjustment module, air inlet adjustment module and
Any one or more parameters in load regulation module measure the Fractions of Diesel Engine Exhaust Particulates object generation system after adjustment every time
The particle size distribution data of the exhaust particulate object of generation is to establish the exhaust particulate object of the Fractions of Diesel Engine Exhaust Particulates object generation system
Property data base；
By the particle size distribution data of the exhaust particulate object in the exhaust particulate object property data base and target exhaust particulate
The particle size distribution data of object compares, in the determination exhaust particulate object property data base with the target exhaust particulate object
The particle size distribution data of the immediate exhaust particulate object of particle size distribution data, to obtain the optimum operation of the diesel-driven generator
Parameter.
Optionally, the injection timing adjustment module includes -20CA, -15CA, -10CA, -5CA and 0CA5 adjusting shelves
It is secondary；The load regulation module includes 20%, 40%, 60%, 80% and 100%5 adjusting class；The air inlet adjustment module
Including 21%, 19%, 17%, 15% and 13%5 adjusting class；Mould is adjusted to the injection timing using permutation and combination method
Block, air inlet adjustment module and load regulation module are adjusted, to obtain the Fractions of Diesel Engine Exhaust Particulates under 125 kinds of different schemes
The particle size distribution data for the exhaust particulate object that object generation system generates.
Optionally, the Fractions of Diesel Engine Exhaust Particulates object generation system after adjusting every time is measured using EEPS3090 partial size spectrometer
The particle size distribution data of the exhaust particulate object of generation, the particle size distribution data include particulate matter quantity.
Optionally, by the particle size distribution data of the exhaust particulate object in the exhaust particulate object property data base and the mesh
Mark exhaust particulate object particle size distribution data compare in the determination exhaust particulate object property data base with the target tail
The process of the particle size distribution data of the immediate exhaust particulate object of the particle size distribution data of aerated particle object is as follows:
The particle size distribution data of the target exhaust particulate object is determined based on the raw emissions parameter of target diesel engine；
The particle size distribution data of the target exhaust particulate object is defined as array Dt (PNt 01,PNt 02,…PNt k, wherein k
Representative diameter model, PNt kRepresent the particulate matter that the partial size model is corresponded in the particle size distribution data of the target exhaust particulate object
Quantity)；The particle size distribution data that scheme nnn is corresponded in the exhaust particulate object property data base is defined as array Dd
(PNnnn 01,PNnnn 02,…PNk nnn, wherein PNk nnnIt represents in the exhaust particulate object property data base and corresponds to the partial size model
Particulate matter quantity, nnn are Protocol Numbers), it is calculated in the exhaust particulate object property data base based on following equation and is adjusted every time
The particle size distribution data and the target tail gas for the exhaust particulate object that the Fractions of Diesel Engine Exhaust Particulates object generation system afterwards generates
The cosine value of the particle size distribution data of particulate matter,
Maximum cosine value is determined based on obtained multiple cosine values, the ginseng in the corresponding scheme of maximum cosine value
Number is the optimal operating parameter of the diesel-driven generator.
Optionally, the Fractions of Diesel Engine Exhaust Particulates object analogy method further includes in the most good speed for obtaining the diesel-driven generator
The step of Fractions of Diesel Engine Exhaust Particulates object generation system is to be verified is run according to the optimal operating parameter after row parameter.
As described above, Fractions of Diesel Engine Exhaust Particulates object generation system and Fractions of Diesel Engine Exhaust Particulates object analogy method of the invention,
Have the advantages that Fractions of Diesel Engine Exhaust Particulates object generation system of the invention can simulated target diesel engine completely true work
Make environment to ensure that its emission is consistent with the component of the emission of target diesel engine and exhaust particulate object particle diameter distribution, from
And accuracy of the most true situation to improve assessment is provided to assess the particulate matter emission reduction effect of cleaning device of tail gas of diesel vehicle.
In addition, the exhaust emissions of the application analog multiple power/model diesel engine, is assessed compared to real vehicle, using the application's
Fractions of Diesel Engine Exhaust Particulates object generation system, which generates the method that tail gas is assessed, can significantly reduce assessed cost.The diesel oil of the application
Tail gas particulate matter analogy method is easy to operate, applied widely, and assessed cost is low, and assessment accuracy greatly improves.
Detailed description of the invention
Fig. 1 is shown as the module diagram of the Fractions of Diesel Engine Exhaust Particulates object generation system of the embodiment of the present invention one.
Fig. 2 is shown as the structural schematic diagram of the Fractions of Diesel Engine Exhaust Particulates object generation system of the embodiment of the present invention one.
Fig. 3 is shown as the another module diagram of the Fractions of Diesel Engine Exhaust Particulates object generation system of the embodiment of the present invention one.
Fig. 4 is shown as the flow chart of the Fractions of Diesel Engine Exhaust Particulates object analogy method of the embodiment of the present invention two.
Component label instructions
1 diesel-driven generator
11 air inlet pipelines
12 gas exhaust pipings
2 injection timings adjust module
3 air inlet adjustment modules
31 oxygen supply units
311 first oxygen sensors
312 oxygen control valves
32 first inert gas supply units
321 first inert gas pipings
322 first inert gas control valves
33 first air pressure adjustment units
331 first pressure sensors
332 first pressure control valves
4 exhaust adjustment modules
41 second inert gas supply units
411 second inert gas pipings
412 second inert gas control valves
42 second air pressure adjustment units
421 second pressure sensors
422 second pressure control valves
43 heating units
431 heaters
432 temperature measuring sets
44 thermometers
45 second oxygen sensors
5 load regulation modules
51 relays
52 load units
61 inert gas sources
62 air pumps
7 central controllers
S01~S03 step
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.
It please refers to Fig.1 to Fig.4.It should be noted that diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of invention, only shown in schema then with related component in the present invention rather than package count when according to actual implementation
Mesh, shape and size are drawn, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its
Assembly layout form may also be increasingly complex.
Embodiment one
As shown in Figure 1, the present invention provides a kind of Fractions of Diesel Engine Exhaust Particulates object generation system, comprising: diesel-driven generator 1, institute
Diesel-driven generator 1 is stated with air inlet pipeline 11 and gas exhaust piping 12；Injection timing adjusts module 2, with 1 phase of diesel-driven generator
Connection, for adjusting the injection timing of the diesel-driven generator 1, the injection timing adjustment module 2 has multiple adjusting class；
Air inlet adjustment module 3 is connected with the air inlet pipeline 11, for adjusting the air inlet of the diesel-driven generator 1；Exhaust adjusts mould
Block 4 is connected with the gas exhaust piping 12, for adjusting the exhaust of the diesel-driven generator 1；Load regulation module 5, and it is described
Diesel-driven generator 1 is connected, for adjusting the load of the diesel-driven generator 1.Fractions of Diesel Engine Exhaust Particulates object of the invention generates
System can simulated target diesel engine completely real operating environments to ensure the emission of its emission Yu target diesel engine
Component it is consistent with exhaust particulate object particle diameter distribution, thus for assessment cleaning device of tail gas of diesel vehicle particulate matter emission reduction effect mention
The accuracy of assessment is improved for most true situation.In addition, the exhaust emissions of the diesel engine of the application analog multiple power,
It is assessed compared to real vehicle, generating the method that tail gas is assessed using the Fractions of Diesel Engine Exhaust Particulates object generation system of the application can show
Writing reduces assessed cost.
Theoretically, the tail gas row of the diesel engine of any power of Fractions of Diesel Engine Exhaust Particulates object generation system analog of the invention
It puts, but if the power of diesel-driven generator 1 is too small, then adjusts the discharge of the parameters such as air inlet and the injection timing of diesel-driven generator 1
Tail gas difference is not obvious, possible impact evaluation effect；And if 1 power of diesel-driven generator is excessive, it may be because of exhaust emissions
Amount causes greatly very much seriously to pollute, in some instances it may even be possible to cause personal injury.Certain most important, power model of the diesel-driven generator 1
Enclose need at least coverage goal diesel vehicle/diesel engine (diesel vehicle is i.e. with the vehicle of diesel engine drives) power.Invention
People analyzes through test of many times and verified discovery, when the power of the diesel-driven generator 1 is 3~10kW, using of the invention
Fractions of Diesel Engine Exhaust Particulates object generation system generate tail gas and target diesel vehicle emission similarity may be up to 95% with
On, it can thus be ensured that the accuracy of assessment.
The injection timing adjustment module 2 is consistent with the injection timing of target diesel vehicle.In one example, the oil spout is being just
When adjustment module 2 have -20CA, -15CA, -10CA, -5CA and 0CA5 adjusting class.The adjusting of injection timing is by changing
Become what injection advance angle was realized, uniform injection timing adjustment is convenient for simplifying the tune to the injection timing of the diesel-driven generator 1
It is whole.Certainly, in other examples, the adjusting class of injection timing adjustment module 2 can for more than 5 or less than 5,
Regulative mode is also possible to non-homogeneous adjusting, does not do stringent limitation in the present embodiment.
Fig. 2 illustrates the concrete structure schematic diagram of Fractions of Diesel Engine Exhaust Particulates object generation system of the invention.
As shown in Fig. 2, as an example, the air inlet adjustment module 3 includes oxygen supply unit 31, the confession of the first inert gas
Answer unit 32 and the first air pressure adjustment unit 33, the oxygen supply unit 31, the first inert gas supply unit 32 and first
Air pressure adjustment unit 33 is connected with the air inlet pipeline 11；The oxygen supply unit 31 is used for the air inlet pipeline 11
Middle supply oxygen；The first inert gas supply unit 32 is for the supplied for inert gas into the air inlet pipeline 11 as needed
Body is to change the oxygen content in the air inlet pipeline 11；The first air pressure adjustment unit 33 is for described in adjusting as needed
Gas pressure in air inlet pipeline 11 is so that the admission pressure of the air inlet pipeline 11 can ensure that the diesel-driven generator 1 is designing
Operation in range；It (is more specifically combustion-supporting gas, usually that the oxygen supply unit 31, which generally includes connection oxygen-containing gas,
Air) pipeline.
As an example, the oxygen supply unit 31 includes the first oxygen sensor 311 and oxygen control valve 312, it is described
First oxygen sensor 311 is used to detect the oxygen content in the air inlet pipeline 11, and the oxygen control valve 312 is used for institute
The oxygen content stated in air inlet pipeline 11 is adjusted；The first inert gas supply unit 32 includes the first inert gas tube
Road 321 and the first inert gas control valve 322, first inert gas piping 321 are connected with the air inlet pipeline 11, institute
The first inert gas control valve 322 is stated for adjusting the supply of the first inert gas, to change in the air inlet pipeline 11
Oxygen content, first inert gas piping 321 can be connected to the not combustion-supporting inert gas source 61 such as nitrogen or argon gas, and institute
Air pump 62 can be connected to provide power by stating on the first inert gas piping 321；The first air pressure adjustment unit 33 includes first
Pressure sensor 331 and first pressure control valve 332, the first pressure sensor 331 is for detecting the air inlet pipeline 11
In gas pressure, the first pressure control valve 332 is used to adjust gas pressure in the air inlet pipeline 11.Described first
Pressure sensor 331 can be connected with the first pressure control valve 332, and the first pressure sensor 331 can also be with institute
It states oxygen control valve 312 and/or first inert gas control valve 322 is connected, according to the first pressure sensor
Gas pressure in 331 air inlet pipelines 11 detected is to the first pressure control valve 332, the oxygen control valve
One or more of 312 and first inert gas control valve 322 are adjusted to ensure in the air inlet pipeline 11
Gas pressure is normal, so that it is guaranteed that the diesel-driven generator 1 operates normally in its scope of design.In other examples, described
Oxygen supply unit 31, the first inert gas supply unit 32 and 11 three of air inlet pipeline the place that is connected can also be with
It is connected by triple valve without the oxygen control valve 312 and first inert gas control valve 322 is separately provided, this
Stringent limitation is not done in embodiment.
The oxygen content in the air inlet pipeline 11 can be adjusted flexibly in the oxygen supply unit 31 as needed, different
Oxygen content the severe degree of the fuel burning in the diesel-driven generator 1 can be made to change and make emission at distribution
Changing is conducive to the accuracy for further increasing the particulate matter emission reduction effect of assessment cleaning device of tail gas of diesel vehicle.Show one
In example, the oxygen content in the air inlet pipeline 11 can be adjusted to 21% by the oxygen supply unit 31,19%, 17%,
15%, 13%5 class.Certainly, in other examples, the oxygen content in the air inlet pipeline 11 may be arranged as other
Ratio, each ratio can not be equal-difference arrangement, not do stringent limitation in the present embodiment, it is important that the oxygen of corresponding every kind of ratio
The tail gas situation that Gas content generates needs Accurate Determining and records.
As an example, the exhaust adjustment module 4 includes the second inert gas supply unit 41 and the second air pressure adjustment list
Member 42；The second inert gas supply unit 41 includes the second inert gas piping 411 and the second inert gas control valve
412, second inert gas piping 411 is connected with the gas exhaust piping 12, and second inert gas control valve 412 is used
In the supply for adjusting the second inert gas, to change the exhaust components ratio in the gas exhaust piping 12；The second air pressure tune
Saving unit 42 includes second pressure sensor 421 and second pressure control valve 422, and the second pressure sensor 421 is for examining
The gas pressure in the gas exhaust piping 12 is surveyed, the second pressure control valve 422 is for adjusting in the gas exhaust piping 12
Gas pressure is to ensure that the diesel-driven generator 1 can work normally；Second inert gas piping 411 can be connected to nitrogen or
The not combustion-supporting inert gas source 61 such as argon gas, and air pump 62 can be connected on second inert gas piping 411 to provide power；
The second pressure sensor 421 can be connected with the second pressure control valve 422, and the second pressure sensor 421 is also
It can be connected with second inert gas control valve 412, described in being detected according to the second pressure sensor 421
Gas pressure in gas exhaust piping 12 is in the second pressure control valve 422 and second inert gas control valve 412
One or two is adjusted to ensure that the gas pressure in the gas exhaust piping 12 is normal, so that it is guaranteed that the diesel-driven generator
1 can work normally.The exhaust adjustment module 4 can also include the second oxygen sensor 45, second oxygen sensor 45
On the gas exhaust piping 12, for detecting the oxygen content in the gas exhaust piping 12, second oxygen sensor 45
It can be connected with the second inert gas supply unit 41 and/or the second air pressure adjustment unit 42, according to described
The testing result of two oxygen sensors 45 controls the supply of the second inert gas and/or adjusts the gas in the gas exhaust piping 12
Pressure.The first inertia supply unit 32 and the second inert gas supply unit 41 can be connected to identical or different lazy
Property gas source 61, is preferably connected to identical inert gas source with save the cost；First oxygen sensor 311 and described
The model of two oxygen sensors 45 is preferably identical；It is the oxygen control valve 312, first inert gas control valve 322, described
The model of first pressure control valve 332, second inert gas control valve 412 and the second pressure control valve 422 can be with
It is identical or different；The first pressure sensor 331 and the model of the second pressure sensor 421 are preferably identical.The row
Thermometer 44 can also be set on air pipe 12 to measure to the delivery temperature in the gas exhaust piping 12.It needs to illustrate
It is that the gas exhaust piping 12 can be single pipeline structure, is also possible to the structure comprising multiple interconnected branch lines,
Control valve can be respectively set, on the branch line then with the row detected according to the second pressure sensor 421
The gross pressure of air pipe 12 passes through the pressure of the control valve on the branch line opened or closed to the gas exhaust piping 12
It is adjusted, does not do stringent limitation in the present embodiment.
As an example, the exhaust adjustment module 4 further includes heating unit 43, the heating unit 43 and described second lazy
Property gas piping 411 be connected, the heating unit 43 include heater 431 and temperature measuring set 432, the temperature measuring set
432 for measuring the second inert gas temperature in second inert gas piping 411, and the heater 431 is used for institute
The second inert gas is stated to be heated, it is consistent with delivery temperature with the second inert gas temperature for ensuring to be passed through and be unlikely to generate
Phenomenon is condensed, it can be micro- to the progress of the particle concentration in tail gas by changing delivery temperature and inert gas dilution mixed proportion
It adjusts.The heater 431 can be connected with the temperature measuring set 432, according to the measurement knot of the temperature measuring set 432
Fruit starts the heating to second inert gas.The heater 431 may be disposed at second inert gas piping 411
Periphery, for example second inert gas piping 411 is wrapped to heat to the second inert gas, it can also be located at described
It, specifically can be depending on the structure of the heater 431 in second inert gas piping 411；The heater 431 can for containing
There is the heating device of the media such as water or air, then the heater 431 is preferably placed at the outer of second inert gas piping 411
It encloses；The heater 431 or resistive heating device, then the heater 431 can be located at second inert gas
The periphery or inside of pipeline 411 do not do stringent limitation in the present embodiment.In the case where being provided with heater 431, to institute
The gas pressure stated in gas exhaust piping 12 is detected with greater need for real-time perfoming to ensure the gas pressure in the gas exhaust piping 12 just
Often.
The load regulation module 5 can the load as needed to the diesel-driven generator 1 be adjusted.In an example
In, the load regulation module 5 includes multiple relays 51 and connects one to one with multiple relays 51 multiple negative
Carrier unit 52 adjusts the load of the diesel-driven generator 1 by the connection or disconnection of the relay 51；Multiple loads
The power of unit 52 is preferably completely consistent, thus the diesel oil may be implemented in the access quantity by adjusting the load unit 52
The power regulation of generator 1；For example, if the load regulation module 5 include 5 relays 51 and with 5 relays
51 5 load units 52 to connect one to one then pass through connecting or disconnecting for the relay 51, can be by the diesel oil
The load regulation of generator 1 to 20% (one load unit 52 of access), 40% (two load units 52 of access), 60% (connects
Enter three load units 52), 80% (access four load units 52), 100%5 class (five load units 52 of access) 5
A class.Certainly, in other examples, the adjusting class of the load regulation module 5 can also have more class, Huo Zhesuo
The load unit 52 that load regulation module 5 may include single power adjustable section is stated, the function to the single load unit 52 is passed through
Rate is adjusted to adjust the load of the diesel engine, does not do stringent limitation in the present embodiment.The load unit 52 can
To be the electrooptical devices such as electric light to convert electric energy to luminous energy, it is also possible to the electric calorifie installations such as electric heater with will be electric
Thermal energy can be converted to, to reduce waste of energy.
It should be strongly noted that the order of connection of the specific device in each module is shown in Fig. 2 not to be limited, such as
Second pressure sensor described in Fig. 2 421 is located at the one end of second oxygen sensor 45 far from the diesel-driven generator 1,
And actually the two position is interchangeable, the specific setting of other each modules can also be adjusted flexibly as needed, specifically not another
One expansion.
Fig. 3 illustrates the another module diagram of Fractions of Diesel Engine Exhaust Particulates object generation system of the invention.As shown in figure 3,
As an example, the Fractions of Diesel Engine Exhaust Particulates object generation system further includes central controller 7, the central controller 7 can be computer or list
Piece machine, the central controller 7 are connected with the air inlet adjustment module 3, the exhaust adjustment module 4 and the load regulation module 5
It connects, such as first oxygen sensor 311 in the air inlet adjustment module 3, the first pressure sensor 331, described
Oxygen control valve 312, first inert gas control valve 322, the first pressure control valve 332 and the exhaust are adjusted
Save second oxygen sensor 45, the second pressure sensor 421, the second pressure control valve 422, institute of module 4
It states the second inert gas control valve 412 and multiple relays 51 is connected with the central controller 7, by the central controller
7 as needed, for example the gas pressure in the air inlet pipeline 11 detected according to the first pressure sensor 331 is to institute
State one or more in first pressure control valve 332, the oxygen control valve 312 and first inert gas control valve 322
It is a to be adjusted to ensure that the gas pressure in the air inlet pipeline 11 is normal, and examined according to the second pressure sensor 421
The gas pressure in the gas exhaust piping 12 measured controls the second pressure control valve 422 and second inert gas
One or two of valve 412 is adjusted to ensure that the gas pressure in the gas exhaust piping 12 is normal, and as needed
Connecting or disconnecting for the relay 51 is controlled to be adjusted with the load to the diesel-driven generator 1.And it should be noted that
Since the central controller 7 is usually digital signal processing device, thus if the air inlet adjustment module 3, the exhaust are adjusted
If including analog signal processing device in module 4 and the load regulation module 5, such as if the first pressure sensor
If what 331 measurements generated is analog signal, then it can also be arranged between the first pressure sensor 331 and central controller 7
Analog-digital converter is converted into digital signal will test the analog signal of result, or in the air inlet adjustment module 3, the row
Analog-digital converter or the air inlet adjustment module 3, institute are all respectively set in gas adjustment module 4 and the load regulation module 5
The two or more modules stated in exhaust adjustment module 4 and the load regulation module 5 can be connected by the same analog-digital converter
It is connected to the central controller 7, or analog-digital converter is set at 7 end of central controller, does not do stringent limitation in the present embodiment.When
So, in other examples, it can also be manually controlled by staff, therefore the central controller 7 is not necessary, but described in utilization
Central controller 7 can be improved the accuracy of control and improve working efficiency.
As an example, the Fractions of Diesel Engine Exhaust Particulates object generation system further includes exhaust gas processing device (not shown), it is described
Exhaust gas processing device is connected with the gas exhaust piping, to the exhaust after the detection with when needed, such as needed for completing
Tail gas in pipeline is handled, and to avoid air pollution, the exhaust gas processing device can be washing burning integral type tail gas
Processing equipment (Scrubber).
The exhaust emissions of the diesel engine of analog multiple power/model of the present invention, can be greatly improved assessment exhaust gas from diesel vehicle
The accuracy of the emission reduction effect of purification device reduces assessed cost.
Embodiment two
The present invention also provides a kind of Fractions of Diesel Engine Exhaust Particulates object analogy method, the Fractions of Diesel Engine Exhaust Particulates object analogy method
Fractions of Diesel Engine Exhaust Particulates object generation system based on embodiment one and carry out, therefore to Fractions of Diesel Engine Exhaust Particulates produce in embodiment one
The description of raw system can be cited in full text into the present embodiment, for purposes of brevity to the diesel engine vent gas in the present embodiment
Grain object generation system does not repeat them here, and specifically please refers to embodiment one.
As shown in figure 4, the Fractions of Diesel Engine Exhaust Particulates object analogy method comprising steps of
S01: the Fractions of Diesel Engine Exhaust Particulates object generation system as described in either a program in embodiment one is provided；
S02: the injection timing adjustment module 2, air inlet adjustment of the Fractions of Diesel Engine Exhaust Particulates object generation system are adjusted
Any one or more parameters in module 3 and load regulation module 5 measure the Fractions of Diesel Engine Exhaust Particulates object after adjustment every time
The particle size distribution data for the exhaust particulate object that generation system generates is to establish the tail of the Fractions of Diesel Engine Exhaust Particulates object generation system
Aerated particle object property data base describes the particle diameter distribution for the exhaust particulate object that corresponding each Adjusted Option generates in the database
(i.e. by Charge-Air Oxygen content ,/injection advance angle/loads the multiple partial sizes generated under the operating scheme that these three parameters are constituted to data
The particulate matter quantity of model)；
S03: by the particle size distribution data of the exhaust particulate object in the exhaust particulate object property data base and target tail gas
The particle size distribution data of particulate matter compares, in the determination exhaust particulate object property data base with the target exhaust particulate
The particle size distribution data of the immediate exhaust particulate object of the particle size distribution data of object, to obtain the best of the diesel-driven generator
Operating parameter, the optimal operating parameter of the diesel-driven generator are the optimal operating parameter of the target diesel vehicle.
As an example, (particle size distribution data represents exhaust particulate to the particle size distribution data of the target exhaust particulate object
The particle diameter distribution situation of object quantizes the particle diameter distribution situation of exhaust particulate object, the usual particle size distribution data includes
The particulate matter quantity of the partial size model of particulate matter and the corresponding partial size model) by the discharge of target diesel vehicle (diesel engine)
Depending on standard, depending on these standards are generally according to the related request of national environmental protection.By Policy Conditions before, heavy-duty diesel oil
Che Guowu discharge standard was implemented in full on July 1st, 2017, and five discharge standard of light-duty diesel vehicle state was on January 1st, 2018
It implements in full, therefore according to the model of target diesel vehicle (diesel engine), such as the number of cylinders according to target diesel engine, punching
The parameters such as journey pattern, cylinder arrangement, cylinder diameter, the discharge standard formulated according to country can determine the target exhaust particulate object
Particle size distribution data.
As an example, the injection timing adjustment module 2 includes 5 tune such as -20CA, -15CA, -10CA, -5CA and 0CA
Save class；The load regulation module 5 includes 20%, 40%, 60%, 80% and 100% etc. 5 adjusting class；The air inlet
Adjustment module 3 includes 21%, 19%, 17%, 15% and 13%5 adjusting class；Using permutation and combination method to the oil spout just
When adjustment module 2, air inlet adjustment module 3 and load regulation module 5 be adjusted, to obtain the bavin under 125 kinds of different schemes
The particle size distribution data for the exhaust particulate object that oil machine exhaust particulate object generation system generates.This regulative mode and target diesel vehicle
Actual operation parameters regulative mode it is identical, thus optimal operation scheme obtained is adjusted according to the ratio can directly answer
Parameter regulation for target diesel vehicle.Certainly, the injection timing adjustment module 2, the load regulation module 5 and it is described into
The adjusting class of gas adjustment module 3 can also have other settings to generate the exhaust emissions scheme of required type as assessment target
The particulate matter emission reduction effect of cleaning device of tail gas of diesel vehicle provides most true situation to improve the accuracy of assessment, the present embodiment
In not considered critical.Different according to the specific structure of the Fractions of Diesel Engine Exhaust Particulates object generation system, the adjustment process can
By manually completing or being completed by the central controller.
As an example, using the diesel engine vent gas after the measurement of EEPS3090 partial size spectrometer every time adjustment in the present embodiment
Grain object generation system generates, and passes through the particle size distribution data for the exhaust particulate object that the gas exhaust piping 12 is discharged, the partial size
Distributed data includes particulate matter quantity.It is fine that EEPS3090 partial size spectrometer has 22 coulometric detectors and 32 data channel to provide
Resolution ratio, detection speed it is fast, be capable of providing particle size distribution quick measurement.It certainly, in other examples can also be with
Using the particle size distribution data of other devices detection exhaust particulate object, stringent limitation is not done in the present embodiment.It is important that detection
The Testing index of device need to meet the testing requirements of the particle size distribution data of target exhaust particulate object.
As an example, can according to need during measuring the particle size distribution data of exhaust particulate object according to described the
It is lazy to adjust in tail gas mixed second that the testing results of two oxygen sensors 45 adjusts second inert gas control valve 412
The content of property gas controls exhaustion dilution ratio；Described in can also being adjusted according to the testing result of the second pressure sensor 421
Second pressure control valve 422 influences the diesel-driven generator 1 to ensure that the tail gas of the diesel-driven generator 1 can be smoothly discharged not
Normal work；Described add can additionally be started according to the measurement result of the thermometer 45 and the temperature measuring set 432
Second inert gas temperature of the hot device 431 to ensure to be passed through and the delivery temperature in the gas exhaust piping 12 are consistent and unlikely
Phenomenon is condensed in generating.
As an example, by the particle size distribution data of the exhaust particulate object in the exhaust particulate object property data base with it is described
The particle size distribution data of target exhaust particulate object compare in the determination exhaust particulate object property data base with the target
The process of the particle size distribution data of the immediate exhaust particulate object of the particle size distribution data of exhaust particulate object is as follows:
The particle size distribution data of the target exhaust particulate object is determined based on the raw emissions parameter of target diesel engine；
The particle size distribution data of the target exhaust particulate object is defined as array Dt (PNt 01,PNt 02,…PNt k, wherein k
Representative diameter model, PNt kRepresent the particulate matter that the partial size model is corresponded in the particle size distribution data of the target exhaust particulate object
Quantity)；The particle size distribution data that scheme nnn is corresponded in the exhaust particulate object property data base is defined as array Dd
(PNnnn 01,PNnnn 02,…PNk nnn, wherein PNk nnnIt represents in the exhaust particulate object property data base and corresponds to the partial size model
Particulate matter quantity, nnn are Protocol Numbers), it is calculated in the exhaust particulate object property data base based on following equation and is adjusted every time
The particle size distribution data and the target tail gas for the exhaust particulate object that the Fractions of Diesel Engine Exhaust Particulates object generation system afterwards generates
The cosine value of the particle size distribution data of particulate matter,
Maximum cosine value is determined based on obtained multiple cosine values, the ginseng in the corresponding scheme of maximum cosine value
Number is the optimal operating parameter of the diesel-driven generator, which is the optimal operating parameter of the target diesel vehicle.
It should be noted that using the diesel engine vent gas after the measurement of EEPS3090 partial size spectrometer every time adjustment in the application
The particle size distribution data of exhaust particulate object that particulate matter generation system generates, in gas exhaust piping, and EEPS3090 partial size
Spectrometer has 32 data channel, i.e. 32 partial size models；According to other kinds of detection device, then the quantity of partial size model has
May be different, thus the data volume of final measurement analysis may be variant.The theoretically more more then final assessment knots of partial size model
Fruit is more accurate, but specific partial size model setting need to be consistent with the exhaust emissions of diesel engine standard of target market.
It certainly, in other examples, can also be based on similarities such as Pearson correlation coefficient method or Minkowski Distances
Measure in the determination exhaust particulate object property data base with the particle size distribution data of the target exhaust particulate object most
The particle size distribution data of close exhaust particulate object；Or can also by calculate the methods of average value and variance be compared with
Determine immediate particle size distribution data, it might even be possible to it is determined based on current big data algorithm, it is not stringent in the present embodiment
Limitation.Accuracy is assessed to improve, theoretically sampled data is The more the better, i.e., the adjustment number for including in the described step S02 is got over
It is much better, but actual adjustment number also needs the model according to target diesel engine, such as the adjustable model of injection timing advance angle
Depending on enclosing and loading the parameters such as adjustable extent.
As an example, the Fractions of Diesel Engine Exhaust Particulates object analogy method further includes obtaining the best of the diesel-driven generator
The step of Fractions of Diesel Engine Exhaust Particulates object generation system is to be verified is run according to the optimal operating parameter after operating parameter.
For example the diesel-driven generator, real-time measurement simulated exhaust gas particle are run according to the optimal operating parameter of determining diesel engine
The particle diameter distribution of object, second inert gas ratio finely tuned in the gas exhaust piping first make in the gas exhaust piping
The particle size distribution data of the particulate matter quality of exhaust, quantity and the target exhaust particulate object is further to then to described
Injection timing adjustment module is finely adjusted to obtain the particle size distribution data more close to target.Certainly, the analogy method and school
Proved recipe method is only illustrative, and can also have other according to the specific structure difference of the Fractions of Diesel Engine Exhaust Particulates object generation system
Method does not do stringent limitation in the present embodiment.
In conclusion the present invention provides a kind of Fractions of Diesel Engine Exhaust Particulates object generation system, comprising: diesel-driven generator, it is described
Diesel-driven generator has air inlet pipeline and gas exhaust piping；Injection timing adjusts module, is connected with the diesel-driven generator, is used for
The injection timing of the diesel-driven generator is adjusted, the injection timing adjustment module has multiple adjusting class；Air inlet adjustment mould
Block is connected with the air inlet pipeline, for adjusting the air inlet of the diesel-driven generator；It is vented adjustment module, with the exhaust
Pipeline is connected, for adjusting the exhaust of the diesel-driven generator；Load regulation module is connected with the diesel-driven generator,
For adjusting the load of the diesel-driven generator.Fractions of Diesel Engine Exhaust Particulates object generation system of the invention can complete simulated target bavin
The real operating environments of oil machine are to ensure the component and exhaust particulate object grain of the emission of its emission and target diesel engine
Diameter distribution is consistent, to provide most true situation to assess the particulate matter emission reduction effect of cleaning device of tail gas of diesel vehicle to improve
The accuracy of assessment.In addition, the exhaust emissions of the application analog multiple power/model diesel engine, is assessed compared to real vehicle,
Assessed cost can be significantly reduced by generating the method that tail gas is assessed using the Fractions of Diesel Engine Exhaust Particulates object generation system of the application.
The Fractions of Diesel Engine Exhaust Particulates object analogy method of the application is easy to operate, and applied widely, assessed cost is low, and assessment accuracy is significantly
It improves.
So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (15)
1. a kind of Fractions of Diesel Engine Exhaust Particulates object generation system characterized by comprising
Diesel-driven generator, the diesel-driven generator have air inlet pipeline and gas exhaust piping；
Injection timing adjusts module, is connected with the diesel-driven generator, for adjusting the injection timing of the diesel-driven generator,
The injection timing adjustment module has multiple adjusting class；
Air inlet adjustment module is connected with the air inlet pipeline, for adjusting the air inlet of the diesel-driven generator；
It is vented adjustment module, is connected with the gas exhaust piping, for adjusting the exhaust of the diesel-driven generator；
Load regulation module is connected with the diesel-driven generator, for adjusting the load of the diesel-driven generator.
2. Fractions of Diesel Engine Exhaust Particulates object generation system according to claim 1, it is characterised in that: the diesel-driven generator
Power is 3~10kW, and the injection timing adjustment module has -20CA, -15CA, -10CA, -5CA and 0CA5 adjusting class.
3. Fractions of Diesel Engine Exhaust Particulates object generation system according to claim 1, it is characterised in that: the air inlet adjustment module
Including oxygen supply unit, the first inert gas supply unit and the first air pressure adjustment unit, the oxygen supply unit, first
Inert gas supply unit and the first air pressure adjustment unit are connected with the air inlet pipeline；The oxygen supply unit is used for
Oxygen is supplied into the air inlet pipeline；The first inert gas supply unit is used for as needed into the air inlet pipeline
Supplying inert gas is to change the oxygen content in the air inlet pipeline；The first air pressure adjustment unit for adjusting as needed
The gas pressure in the air inlet pipeline is saved so that the admission pressure of the air inlet pipeline can ensure that the diesel-driven generator is being set
Count operation in range.
4. Fractions of Diesel Engine Exhaust Particulates object generation system according to claim 3, it is characterised in that: the oxygen supply unit
Including the first oxygen sensor and oxygen control valve, first oxygen sensor is used to detect the oxygen in the air inlet pipeline
Content, the oxygen control valve is for being adjusted the oxygen content in the air inlet pipeline；First inert gas supplies
Unit is answered to include the first inert gas piping and the first inert gas control valve, first inert gas piping and the air inlet
Pipeline is connected, and first inert gas control valve is used to adjust the supply of the first inert gas, to change the air inlet
Oxygen content in pipeline；The first air pressure adjustment unit includes first pressure sensor and first pressure control valve, described
First pressure sensor is used to detect the gas pressure in the air inlet pipeline, and the first pressure control valve is described for adjusting
Gas pressure in air inlet pipeline.
5. Fractions of Diesel Engine Exhaust Particulates object generation system according to claim 4, it is characterised in that: the oxygen supply unit
Oxygen content in the air inlet pipeline can be adjusted to 21%, 19%, 17%, 15% and 13%5 class.
6. Fractions of Diesel Engine Exhaust Particulates object generation system according to claim 1, it is characterised in that: the exhaust adjustment module
Including the second inert gas supply unit and the second air pressure adjustment unit；The second inert gas supply unit includes second lazy
Property gas piping and the second inert gas control valve, second inert gas piping are connected with the gas exhaust piping, described
Second inert gas control valve is used to adjust the supply of the second inert gas, to change the exhaust components in the gas exhaust piping
Than；The second air pressure adjustment unit includes second pressure sensor and second pressure control valve, the second pressure sensor
For detecting the gas pressure in the gas exhaust piping, the second pressure control valve is used to adjust the gas in the gas exhaust piping
Body pressure is to ensure that the diesel generation function works normally.
7. Fractions of Diesel Engine Exhaust Particulates object generation system according to claim 6, it is characterised in that: the exhaust adjustment module
It further include heating unit, the heating unit is connected with second inert gas piping, and the heating unit includes heating
Device and temperature measuring set, the temperature measuring set are used to measure the second indifferent gas body temperature in second inert gas piping
Degree, the heater is for heating second inert gas.
8. Fractions of Diesel Engine Exhaust Particulates object generation system according to claim 1, it is characterised in that: the load regulation module
Including multiple relays and the multiple load units to connect one to one with multiple relays, pass through the company of the relay
On-off is opened to adjust the load of the diesel-driven generator.
9. Fractions of Diesel Engine Exhaust Particulates object generation system according to claim 1, it is characterised in that: the load regulation module
It can be by the load regulation of the diesel-driven generator to 20%, 40%, 60%, 80%, 100%5 class.
10. Fractions of Diesel Engine Exhaust Particulates object generation system according to any one of claims 1 to 9, it is characterised in that: the bavin
Oil machine exhaust particulate object generation system further includes central controller, and the central controller and the air inlet adjustment module, the exhaust are adjusted
Module and the load regulation module are connected.
11. a kind of Fractions of Diesel Engine Exhaust Particulates object analogy method, which is characterized in that the Fractions of Diesel Engine Exhaust Particulates object analogy method packet
Include step:
Fractions of Diesel Engine Exhaust Particulates object generation system as described in any one of claim 1 to 10 is provided；
Adjust injection timing adjustment module, air inlet adjustment module and the load of the Fractions of Diesel Engine Exhaust Particulates object generation system
Any one or more parameters in adjustment module, the Fractions of Diesel Engine Exhaust Particulates object generation system generates after measuring adjustment every time
Exhaust particulate object particle size distribution data to establish the exhaust particulate object feature of the Fractions of Diesel Engine Exhaust Particulates object generation system
Database；
By the particle size distribution data of the exhaust particulate object in the exhaust particulate object property data base and target exhaust particulate object
Particle size distribution data compares, with the partial size in the determination exhaust particulate object property data base with the target exhaust particulate object
The particle size distribution data of the immediate exhaust particulate object of distributed data, to obtain the optimum operation ginseng of the diesel-driven generator
Number.
12. Fractions of Diesel Engine Exhaust Particulates object analogy method according to claim 11, it is characterised in that: the injection timing tune
Mould preparation block includes -20CA, -15CA, -10CA, -5CA and 0CA5 adjusting class；The load regulation module include 20%,
40%, 60%, 80% and 100%5 adjusting class；The air inlet adjustment module includes 21%, 19%, 17%, 15% and
13%5 adjusting class；Using permutation and combination method to injection timing adjustment module, air inlet adjustment module and load regulation mould
Block is adjusted, to obtain the exhaust particulate object that the Fractions of Diesel Engine Exhaust Particulates object generation system generates under 125 kinds of different schemes
Particle size distribution data.
13. Fractions of Diesel Engine Exhaust Particulates object analogy method according to claim 11, it is characterised in that: use EEPS3090
The particle diameter distribution number for the exhaust particulate object that the Fractions of Diesel Engine Exhaust Particulates object generation system generates after the measurement of diameter spectrometer adjusts every time
According to the particle size distribution data includes particulate matter quantity.
14. Fractions of Diesel Engine Exhaust Particulates object analogy method according to claim 11, which is characterized in that by the exhaust particulate
The particle size distribution data phase of the particle size distribution data of exhaust particulate object in object property data base and the target exhaust particulate object
Compare with closest with the particle size distribution data of the target exhaust particulate object in the determination exhaust particulate object property data base
Exhaust particulate object particle size distribution data process it is as follows:
The particle size distribution data of the target exhaust particulate object is determined based on the raw emissions parameter of target diesel engine；
The particle size distribution data of the target exhaust particulate object is defined as array Dt (PNt 01,PNt 02,…PNt k, wherein k is represented
Partial size model, PNt kRepresent the particulate count that the partial size model is corresponded in the particle size distribution data of the target exhaust particulate object
Amount)；The particle size distribution data that scheme nnn is corresponded in the exhaust particulate object property data base is defined as array Dd (PNnnn 01,
PNnnn 02,…PNk nnn, wherein PNk nnnRepresent the particulate matter that the partial size model is corresponded in the exhaust particulate object property data base
Quantity, nnn are Protocol Numbers), each institute adjusted in the exhaust particulate object property data base is calculated based on following equation
State the particle size distribution data and the target exhaust particulate object of the exhaust particulate object of Fractions of Diesel Engine Exhaust Particulates object generation system generation
Particle size distribution data cosine value,
Maximum cosine value is determined based on obtained multiple cosine values, and the parameter in the corresponding scheme of maximum cosine value is
For the optimal operating parameter of the diesel-driven generator.
15. 1 to 14 described in any item Fractions of Diesel Engine Exhaust Particulates object analogy methods according to claim 1, it is characterised in that: described
Fractions of Diesel Engine Exhaust Particulates object analogy method further includes after the optimal operating parameter for obtaining the diesel-driven generator according to described best
Operating parameter runs the step of Fractions of Diesel Engine Exhaust Particulates object generation system is to be verified.
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| CN105422325A (en) * | 2015-12-03 | 2016-03-23 | 华南理工大学 | Large diesel engine tail gas circulation treatment system and method |
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| CN109944664B (en) * | 2019-02-19 | 2020-05-19 | 上海市环境科学研究院 | Design method of tail gas purification equipment, device, system and storage medium thereof |
| CN113884305A (en) * | 2021-09-29 | 2022-01-04 | 山东大学 | Diesel engine assembly cold test detection method and system based on SVM |
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