CN107870092A - A kind of testboard bay for simulated engine discharge - Google Patents
A kind of testboard bay for simulated engine discharge Download PDFInfo
- Publication number
- CN107870092A CN107870092A CN201711111022.5A CN201711111022A CN107870092A CN 107870092 A CN107870092 A CN 107870092A CN 201711111022 A CN201711111022 A CN 201711111022A CN 107870092 A CN107870092 A CN 107870092A
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- China
- Prior art keywords
- unit
- hybrid chamber
- nox
- testboard bay
- simulated engine
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Classifications
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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
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- 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
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a kind of testboard bay for simulated engine discharge, including burner body arrangement, air feed unit, oil supply unit and control system, the atomization hybrid chamber being sequentially communicated is provided with burner body arrangement, hybrid chamber, contracting confounding and combing area, air feed unit is connected by combustion-supporting air channel with atomization hybrid chamber, oil supply unit is connected by fuel injector with atomization hybrid chamber, NOx fills unit, PM fills unit and CH filling unit is connected by conduit with atomization hybrid chamber, the one end for combing area and reaction channel connects, the inside of reaction channel is provided with igniter, the other end of reaction channel and one end of ternary catalyzing unit connect, the other end of ternary catalyzing unit is connected with exhaust emissions passage, motor-driven valve is installed in exhaust emissions passage, the exit of exhaust emissions passage is provided with exhaust analyzer.The present invention can be verified and demarcated on this stand with a tractor serves several purposes, different products.
Description
Technical field
The present invention relates to a kind of testboard bay, more particularly to a kind of testboard bay for simulated engine discharge, belongs to
Tail gas technical field of measurement and test.
Background technology
With upgrading of the country to vehicle Abgasgesetz, the requirement of vehicle post processing design is also tightened up.State V and state's VI methods
Rule have more harsh requirement to vehicle NOx and PM discharge etc., and the implementation of regulation promotes aftertreatment assembly manufacturer to improve production
The quality and performance of product, Speeding up development progress and reduction development cost.
Traditional post processing Exhaust assembly checking can be placed on engine pedestal and be tested, and regulation produces real engine
Various operating modes, and emission performance of the part under this operating mode is tested.The advantages of conventional test methodologies is its authenticity,
The various parameters of engine are more true, and shortcoming is：
（1）Cost is high.Buying is needed with money engine, and engine is carried out to transform testboard bay as, and is equipped with various assemblies；
（2）Cycle is grown.The engine of engine pedestal is generally type newly developed, it is necessary to wait and coordinate main engine plants' node, together
Shi Kaifa and debugging are also required to longer cycle, once in addition, engine control logic is changed, or supplier needs engine to carry
For new test technology, it is required for waiting engine production business to re-scale；
（3）Lack flexibility.Engine pedestal is special computer for special use, and a kind of type is directed to a kind of product, once the product of exploitation changes
Become, it is necessary to which supporting corresponding type, old type can not be new product development service.
The content of the invention
It is an object of the invention to provide a kind of dress inexpensive, that simulation test quickly can be accurately carried out to vehicle exhaust
Put.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
The invention provides it is a kind of for simulated engine discharge testboard bay, including burner body arrangement, air feed unit,
Oil supply unit, NOx filling unit, PM filling unit, CH filling units and control system, the burner body arrangement is interior to be set
There are the atomization hybrid chamber being sequentially communicated, hybrid chamber, contracting confounding and comb area, the air feed unit is mixed with atomization by combustion-supporting air channel
Close chamber connection, the oil supply unit be connected by fuel injector with atomization hybrid chamber, the NOx fills unit, PM fills unit and
CH filling unit is connected by conduit with atomization hybrid chamber, and described area and one end of reaction channel of combing connects, the reaction
The inside of passage is provided with igniter, and the other end of the reaction channel and one end of ternary catalyzing unit are connected, and the ternary is urged
The other end for changing device is connected with exhaust emissions passage, motor-driven valve is provided with the exhaust emissions passage, the exhaust emissions leads to
The exit in road is provided with exhaust analyzer.
As a preferred technical solution of the present invention, the control system is PLC, and the control system is divided
Unit, igniter, three are not filled with the oil supply unit, air feed unit, fuel injector, NOx filling unit, PM filling unit, CH
First catalyst converter and motor-driven valve electricly connect.
As a preferred technical solution of the present invention, the oil supply unit is the oil storage for being provided with high-pressure common-rail oil pump
Tank.
As a preferred technical solution of the present invention, the air feed unit is blower fan or air compressor machine.
As a preferred technical solution of the present invention, NOx sensor is installed in the reaction channel.
As a preferred technical solution of the present invention, the NOx filling unit is the NOx compounds for being provided with high-pressure pump
Storage tank；The PM filling unit is PM particle generators, and the PM particle generators are connected with air blower；The CH filling
Unit is the CH compound storage tanks for being provided with high-pressure pump.
The beneficial effect that is reached of the present invention is：The present invention can replace traditional engine pedestal, instead of to TWC, SCR
And DPF etc. emission test；The present invention can be verified and marked on this stand with a tractor serves several purposes, different products
It is fixed；The present invention can save cost more than 50% compared with traditional stand, can save the development time more than 80%.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structure principle chart of the present invention；
In figure：1st, oil supply unit；2nd, air feed unit；3rd, control system；4th, it is atomized hybrid chamber；5th, fuel injector；6th, combustion-supporting air channel；7、
Hybrid chamber；8th, contracting confounding；9th, chamber is combed；10th, NOx fills unit；11st, PM fills unit；12nd, CH fills unit；13rd, light a fire
Device；14th, NOx sensor；15th, ternary catalyzing unit；16th, motor-driven valve.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein preferred real
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in figure 1, the invention provides a kind of testboard bay for simulated engine discharge, including burner body knot
Structure, air feed unit 2, oil supply unit 1, NOx filling unit 10, PM filling unit 11, CH filling units 12 and control system 3, combustion
The atomization hybrid chamber 4 being sequentially communicated, hybrid chamber 7, contracting confounding 8 are provided with burner body construction and combs area 9, air feed unit 2
It is connected by combustion-supporting air channel 6 with atomization hybrid chamber 4, oil supply unit 1 is connected by fuel injector 5 with atomization hybrid chamber 4, NOx filling
Unit 10, PM filling units 11 and CH filling unit 12 are connected by conduit with atomization hybrid chamber 4, and it is logical with reaction to comb area 9
One end connection in road, the inside of reaction channel is provided with igniter 13, the other end of reaction channel and the one of ternary catalyzing unit 15
End connection, the other end of ternary catalyzing unit 15 are connected with exhaust emissions passage, motor-driven valve 16, tail are provided with exhaust emissions passage
The exit of gas discharge-channel is provided with exhaust analyzer.
Control system 3 is PLC, and control system 3 respectively with oil supply unit 1, air feed unit 2, fuel injector 5, NOx
Filling unit 10, PM filling unit 11, CH filling unit 12, igniter 13, ternary catalyzing unit 15 and motor-driven valve 16 electricly connect,
It is convenient to control each plant running.Oil supply unit 1 is the oil storage tank for being provided with high-pressure common-rail oil pump, using the fuel feeding side of high-pressure common rail
Formula, ensure that fuel-oil atmozation is abundant, while more conducively air-fuel mixture is abundant.Air feed unit 2 is blower fan or air compressor machine.In reaction channel
NOx sensor 14 is installed, the NOx compound concentrations of filling can be fed back in real time, make filling precision controlling more smart
Really.NOx filling units 10 are the NOx compound storage tanks for being provided with high-pressure pump；PM filling units 11 are PM particle generators, and
PM particle generators are connected with air blower, and the PM particles for making filling are PM and the mixture of the gas with certain temperature, are ensured
PM easy mixcibility and controllability；CH filling units 12 are the CH compound storage tanks for being provided with high-pressure pump.
Concrete operating principle：The device is mainly filled single by burner body arrangement, air feed unit 2, oil supply unit 1, NOx
Member 10, PM filling unit 11, CH filling units 12 and control system 3 form, and the device in use, pass through control system 3 first
Control oil supply unit 1 and air feed unit 2 are opened, and fuel oil and air are added into burner body arrangement, fuel oil and air are successively
By being atomized hybrid chamber 4, hybrid chamber 7, contracting confounding 8 and combing area 9, eventually arrive in reaction channel and be thoroughly mixed together；
Igniter 13 is opened afterwards, lights gas mixture, simulated engine working condition simultaneously produces tail gas；Then further according to corresponding hair
The actual exhaust gas yield of motivation, unit 10 is filled by NOx, PM fills unit 11, CH fills unit 12 to burner body
Core exhaust gas composition NOx, PM the and CH compounds of addition needs in structure, so that exhaust gas component and corresponding engine
Actual exhaust gas yield is identical；Then tail gas is transported to purification filtering in ternary catalyzing unit 15, finally by cleaned tail gas
It is transported in exhaust analyzer and carries out analysis detection, sees whether it reaches exhaust emission standard.
The beneficial effect that is reached of the present invention is：The present invention can replace traditional engine pedestal, instead of to TWC, SCR
And DPF etc. emission test；The present invention can be verified and marked on this stand with a tractor serves several purposes, different products
It is fixed；The present invention can save cost more than 50% compared with traditional stand, can save the development time more than 80%.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of testboard bay for simulated engine discharge, including burner body arrangement, air feed unit（2）, fuel feeding list
Member（1）, NOx filling unit（10）, PM filling unit（11）, CH filling unit（12）And control system（3）, it is characterised in that
The atomization hybrid chamber being sequentially communicated is provided with the burner body arrangement（4）, hybrid chamber（7）, contracting confounding（8）With combing area
（9）, the air feed unit（2）Pass through combustion-supporting air channel（6）With being atomized hybrid chamber（4）Connection, the oil supply unit（1）Pass through oil spout
Device（5）With being atomized hybrid chamber（4）Connection, the NOx fill unit（10）, PM filling unit（11）Unit is filled with CH（12）
Pass through conduit and atomization hybrid chamber（4）Connection, the combing area（9）It is connected with one end of reaction channel, the reaction channel
Inside is provided with igniter（13）, the other end and ternary catalyzing unit of the reaction channel（15）One end connection, the ternary
Catalyst converter（15）The other end be connected with exhaust emissions passage, motor-driven valve is installed in the exhaust emissions passage（16）, it is described
The exit of exhaust emissions passage is provided with exhaust analyzer.
A kind of 2. testboard bay for simulated engine discharge according to claim 1, it is characterised in that the control
System（3）For PLC, and the control system（3）Respectively with the oil supply unit（1）, air feed unit（2）, fuel injector
（5）, NOx filling unit（10）, PM filling unit（11）, CH filling unit（12）, igniter（13）, ternary catalyzing unit（15）With
Motor-driven valve（16）Electricly connect.
A kind of 3. testboard bay for simulated engine discharge according to claim 1, it is characterised in that the fuel feeding
Unit（1）To be provided with the oil storage tank of high-pressure common-rail oil pump.
A kind of 4. testboard bay for simulated engine discharge according to claim 1, it is characterised in that the air feed
Unit（2）For blower fan or air compressor machine.
A kind of 5. testboard bay for simulated engine discharge according to claim 1, it is characterised in that the reaction
NOx sensor is installed in passage（14）.
A kind of 6. testboard bay for simulated engine discharge according to claim 1, it is characterised in that the NOx
Fill unit（10）To be provided with the NOx compound storage tanks of high-pressure pump；The PM fills unit（11）For PM particle generators,
And the PM particle generators are connected with air blower；The CH fills unit（12）To be provided with the storage of the CH compounds of high-pressure pump
Tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711111022.5A CN107870092A (en) | 2017-11-13 | 2017-11-13 | A kind of testboard bay for simulated engine discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711111022.5A CN107870092A (en) | 2017-11-13 | 2017-11-13 | A kind of testboard bay for simulated engine discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107870092A true CN107870092A (en) | 2018-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711111022.5A Pending CN107870092A (en) | 2017-11-13 | 2017-11-13 | A kind of testboard bay for simulated engine discharge |
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| CN (1) | CN107870092A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433658A (en) * | 2019-07-09 | 2019-11-12 | 北京工业大学 | A kind of method and realization device of the improvement of diesel engine multiple stage nitrogen oxides |
| CN110530642A (en) * | 2019-09-29 | 2019-12-03 | 无锡亿利环保科技有限公司 | A kind of burner test-bed and the mixer stable state crystallization trial method based on burner |
| CN110686905A (en) * | 2019-10-09 | 2020-01-14 | 浙江多普勒环保科技有限公司 | Simulated exhaust emission device for motor vehicle remote sensing equipment |
| CN110736622A (en) * | 2019-10-31 | 2020-01-31 | 中船动力研究院有限公司 | emission generation test device |
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| CN102829976A (en) * | 2012-08-20 | 2012-12-19 | 清华大学 | Simulator stand for exhaust characteristics of vehicle engine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110433658A (en) * | 2019-07-09 | 2019-11-12 | 北京工业大学 | A kind of method and realization device of the improvement of diesel engine multiple stage nitrogen oxides |
| CN110433658B (en) * | 2019-07-09 | 2021-11-19 | 北京工业大学 | Method for treating nitrogen oxide in multiple racks of diesel engine and implementation device |
| CN110530642A (en) * | 2019-09-29 | 2019-12-03 | 无锡亿利环保科技有限公司 | A kind of burner test-bed and the mixer stable state crystallization trial method based on burner |
| CN110686905A (en) * | 2019-10-09 | 2020-01-14 | 浙江多普勒环保科技有限公司 | Simulated exhaust emission device for motor vehicle remote sensing equipment |
| CN110736622A (en) * | 2019-10-31 | 2020-01-31 | 中船动力研究院有限公司 | emission generation test device |
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Application publication date: 20180403 |