CN114544862A - Internal combustion engine tail gas emission detection system - Google Patents
Internal combustion engine tail gas emission detection system Download PDFInfo
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- CN114544862A CN114544862A CN202011250205.7A CN202011250205A CN114544862A CN 114544862 A CN114544862 A CN 114544862A CN 202011250205 A CN202011250205 A CN 202011250205A CN 114544862 A CN114544862 A CN 114544862A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 77
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000004364 calculation method Methods 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000004868 gas analysis Methods 0.000 claims 3
- 239000007789 gas Substances 0.000 abstract description 42
- 239000003344 environmental pollutant Substances 0.000 abstract description 12
- 231100000719 pollutant Toxicity 0.000 abstract description 12
- 239000000446 fuel Substances 0.000 abstract description 10
- 238000004458 analytical method Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000011160 research Methods 0.000 abstract description 6
- 239000000567 combustion gas Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000003916 acid precipitation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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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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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Of Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a tail gas emission detection system of an internal combustion engine, which comprises the internal combustion engine, an exhaust pipe, a gas analyzer, a fuel consumption meter, a dynamometer, a data acquisition card and a main control computer, wherein internal combustion gas is connected with the gas analyzer through the exhaust pipe, internal combustion gas is connected with the fuel consumption meter and the dynamometer, the fuel consumption meter and the dynamometer are directly connected with the main control computer, and the gas analyzer is connected with the main control computer through the data acquisition card. The detection system can visually observe and record the average concentration change of the pollutants discharged in the whole cycle working condition process of the internal combustion engine, is beneficial to research and analysis of emission detection, and provides theoretical reference for manufacturing and processing of the internal combustion engine; the software of the internal combustion engine tail gas emission detection system in the main control computer is arranged to automatically record data and complete related calculation to obtain the emission result of the internal combustion engine, so that whether the emission of the internal combustion engine meets the requirements and whether the internal combustion engine is manufactured in compliance can be quickly and accurately judged, and basis and standard are provided for manufacturing internal combustion gas.
Description
Technical Field
The invention relates to the field of internal combustion engines, in particular to an internal combustion engine tail gas emission detection system.
Background
The automobile exhaust is the exhaust produced by automobile, and is the exhaust produced by converting the chemical energy of internal combustion engine into mechanical energy, and contains hundreds of different compounds, wherein the pollutants comprise solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead, sulfur oxides and the like. The tail gas can not only directly harm human health, but also have a profound influence on the environment of human life. The sulfur dioxide in the tail gas has strong pungent smell, and the sulfur dioxide easily causes the generation of acid rain when reaching a certain concentration, so that soil and water sources are acidified, and the growth of crops and forests is influenced.
Whether the exhaust emission of one internal combustion engine is qualified or not and whether the exhaust emission of one internal combustion engine can meet the national standard emission standard or not is detected, and the steady-state circulating working condition experiment of the internal combustion engine is generally needed. However, currently used exhaust emission detection devices usually directly sample the raw exhaust gas of an internal combustion engine to obtain the average concentration of emission pollutants such as nitrogen oxides, carbon monoxide, hydrocarbon, etc., but these data cannot accurately represent the instantaneous emission level of human and machine. Because the engine is under varying operating conditions, the total amount of emissions over time must be recorded and calculated so that the level of emissions from the engine can be accurately represented. The simple tail gas detection instrument and equipment not only have complex operation steps, but also need a large amount of data recording and calculation, which causes great inconvenience to the tail gas emission detection work of the internal combustion engine. Meanwhile, the accuracy of detection is also influenced by manual calculation and operation of a large amount of experimental data.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides the internal combustion engine exhaust emission detection system which is simple in operation steps, and a large amount of experimental data in the detection process are processed by a main control computer, so that the detection accuracy is ensured.
The invention provides a tail gas emission detection system of an internal combustion engine, which comprises the internal combustion engine, an exhaust pipe, a gas analyzer, a fuel consumption meter, a dynamometer, a data acquisition card and a main control computer, wherein internal fuel gas is connected with the gas analyzer through the exhaust pipe, the internal fuel gas is connected with the fuel consumption meter and the dynamometer, the fuel consumption meter and the dynamometer are directly connected with the main control computer, and the gas analyzer is connected with the main control computer through the data acquisition card. The exhaust pipe is connected with the gas analyzer and used for detecting and analyzing the average concentration of pollutants in exhaust gas of the internal combustion engine, the oil consumption meter is used for acquiring the economic performance parameters of instantaneous oil consumption and oil consumption rate of the internal combustion engine, and the dynamometer is used for adjusting the operation condition of the internal combustion engine, monitoring the operation condition, and simultaneously measuring and recording the power performance parameters of the internal combustion engine, such as rotating speed, torque, power and the like.
Furthermore, the connection between the gas analyzer and the data acquisition card adopts a single-ended connection mode, that is, the positive electrode and the negative electrode of the gas analyzer are directly connected to the positive electrode and the negative electrode of the data acquisition card. The connection mode has short transmission distance but poor anti-interference capability, and can be adopted because the distances among the internal combustion engine, the gas analyzer and the data acquisition card are short.
Furthermore, the data acquisition card is directly connected to a main control computer through a USB interface, and the main control computer is connected with the data acquisition card through a terminal board.
Furthermore, the main control computer is internally provided with internal combustion engine exhaust emission detection software. The software of the exhaust emission detection system of the internal combustion engine is used for starting an exhaust emission detection program of the internal combustion engine.
Further, a database is also arranged in the main control computer. The database is used for storing the detected related data.
Furthermore, the software of the internal combustion engine exhaust emission detection system comprises a data acquisition module, a signal processing module, a calculation and display module and a storage and data output module, wherein the data acquisition module, the signal processing module, the calculation and display module and the storage and data output module are sequentially connected end to end. The data acquisition module is used for acquiring the average concentration of the pollutants discharged by nitrogen oxide, carbon monoxide, hydrocarbon, carbon dioxide and the like in real time; the signal processing module is used for analyzing and processing the acquired signals and reducing the influence of interference noise on the sampled signals by using a digital filtering mode; the calculation and display module is used for carrying out corresponding calculation on the acquired signals and displaying a chart on the main control computer in real time; and the storage and data output module is used for storing and outputting experimental data and results.
Further, an internal combustion engine exhaust emission detecting system still includes the printer. The printer is used for printing the detection result, and is convenient for realizing analysis and theoretical research of related data.
The invention provides a detection system for tail gas emission of an internal combustion engine, which has the advantages that: the internal combustion engine tail gas emission detection system provided by the structure can visually observe and record the change of the average concentration of various emission pollutants in the whole cycle working condition process of the internal combustion engine, is beneficial to research and analysis of emission detection, and provides theoretical reference for manufacturing and processing of the internal combustion engine; by setting software of an internal combustion engine tail gas emission detection system in the main control computer, data are automatically recorded and relevant calculation is completed after an internal combustion engine test is finished, and an emission result of the internal combustion engine is obtained, so that whether the emission of the internal combustion engine meets requirements and whether the internal combustion engine is in compliance or not is quickly and accurately judged, and basis and standard are provided for manufacturing internal combustion gas.
Drawings
FIG. 1 is a schematic structural diagram of an exhaust emission detection system of an internal combustion engine according to the present invention;
FIG. 2 is a schematic diagram of the configuration of the software for detecting the exhaust emission of an internal combustion engine;
FIG. 3 is a schematic diagram of an exhaust emission detection system for an internal combustion engine according to the present invention;
the system comprises 100 parts of an internal combustion engine, 200 parts of an exhaust pipe, 300 parts of a gas analyzer, 400 parts of a fuel consumption meter, 500 parts of a dynamometer, 600 parts of a data acquisition card, 601 parts of a database, 700 parts of a main control computer, 800 parts of internal combustion engine tail gas emission detection software, 801 parts of a data acquisition module, 802 parts of a signal processing module, 803 parts of a calculation and display module, 804 parts of a storage and data output module.
Detailed Description
As shown in FIG. 1, FIG. 1 shows a detection system for exhaust emission of an internal combustion engine, which is disclosed by the invention, the operation steps are simple, and a large amount of experimental data in the detection process is processed by a main control computer, so that the detection accuracy is ensured.
Referring to fig. 1 and fig. 3, the system for detecting exhaust emission of an internal combustion engine 100 according to the present invention includes an internal combustion engine 100, and further includes an exhaust pipe 200, a gas analyzer 300, a fuel consumption meter 400, a dynamometer 500, a data acquisition card 600, and a main control computer 700, wherein the internal fuel gas is connected to the gas analyzer 300 through the exhaust pipe 200, the internal fuel gas is connected to the fuel consumption meter 400 and the dynamometer 500, the fuel consumption meter 400 and the dynamometer 500 are directly connected to the main control computer 700, and the gas analyzer 300 is connected to the main control computer 700 through the data acquisition card 600. The internal combustion engine 100 is started, the internal combustion engine 100 exhausts tail gas through the exhaust pipe 200, the tail gas enters the gas analyzer 300 to be analyzed, meanwhile, the data acquired by analysis are read in real time by the data acquisition card 600 and stored in the main control computer 700, the main control computer 700 automatically completes the calculation of the weighting function, and finally the main control computer 700 displays a circular emission result and generates an average concentration curve graph of the emission pollutants, so that the analysis of the detection result and the related experimental research are facilitated.
The connection between the gas analyzer 300 and the data acquisition card 600 adopts a single-ended connection mode, i.e., the positive electrode and the negative electrode of the gas analyzer 300 are directly connected to the positive electrode and the negative electrode of the data acquisition card 600. The transmission distance of the connection mode is short, but the anti-interference capability is poor, and the connection mode can be adopted because the distances among the internal combustion engine 100, the gas analyzer 300 and the data acquisition card 600 are short.
The data acquisition card 600 is directly connected to the main control computer 700 through a USB interface, and the main control computer 700 is connected to the data acquisition card 600 through a terminal board. The data acquisition card 600 is inserted into the USB interface of the main control computer 700, and then the main control computer 700 and the data acquisition card 600 are connected by the terminal board.
Referring to fig. 1, the main control computer 700 is internally provided with internal combustion engine exhaust emission detection software 800. Starting the internal combustion engine 100, and after all detection works are ready, starting a tail gas emission detection program of the internal combustion engine 100 arranged in the main control computer 700 to start the detection work.
A database 601 is also arranged in the main control computer 700. The database 601 is used to store the detected relevant data.
Referring to fig. 2, the internal combustion engine exhaust emission detection software 800 includes a data acquisition module 801, a signal processing module 802, a calculation and display module 803, and a storage and data output module 804, wherein the data acquisition module 801, the signal processing module 802, the calculation and display module 803, and the storage and data output module 804 are sequentially connected end to end. After the internal combustion engine exhaust emission detection software 800 is started, the data acquisition module 801 acquires the average concentration of the emission pollutants such as nitrogen oxides, carbon monoxide, hydrocarbons, carbon dioxide and the like, then transmits the acquired signals to the signal processing module 802, the signal processing module 802 analyzes and processes the acquired signals, the influence of interference noise on the sampled signals is reduced by using a digital filtering mode, the signal processing module 802 then transmits the analyzed and processed signals to the calculation and display module 803, the calculation and display module 803 correspondingly calculates the acquired signals and displays a chart on the main control computer 700 in real time, meanwhile, the calculation and display module 803 transmits the acquired signals to the storage and data output module 804, and meanwhile, the signal processing module 802, the calculation and display module 803, the storage and data output module 804 and the database 601 carry out transmission and intercommunication of information data, the data acquisition card 600 reads the data obtained by analysis in real time and stores the data in the main control computer 700, the main control computer 700 automatically completes the calculation of the weighting function, and finally the main control computer 700 displays the circular discharge result and generates a discharge pollutant average concentration curve chart
An internal combustion engine 100 exhaust emission detection system further includes a printer. After the test is finished, the printer is started, and prints the experimental data and results in the database 601 in the main control computer 700, so that the experimental data and results can be conveniently checked and analyzed manually.
The working process is as follows: the data acquisition card 600 is inserted into the USB interface of the main control computer 700, and then the main control computer 700 and the data acquisition card 600 are connected by the terminal board.
Starting the internal combustion engine 100, after all detection works are ready, turning on an internal combustion engine 100 tail gas emission detection program arranged in the main control computer 700, starting the detection works, discharging tail gas from the internal combustion engine 100 through the exhaust pipe 200, analyzing the tail gas in the gas analyzer 300, simultaneously reading the data obtained by analysis in real time by the data acquisition card 600 and storing the data in the main control computer 700, automatically completing the calculation of a weighting function by the main control computer 700, finally displaying a cyclic emission result by the main control computer 700, and generating an average concentration curve graph of the emitted pollutants, thereby being beneficial to the analysis of the detection results and related experimental research.
After the internal combustion engine exhaust emission detection software 800 is started, the data acquisition module 801 acquires the average concentration of the emission pollutants such as nitrogen oxides, carbon monoxide, hydrocarbon, carbon dioxide and the like, then the collected signals are transmitted to the signal processing module 802, the signal processing module 802 analyzes and processes the collected signals, the influence of interference noise on the sampled signals is reduced by using a digital filtering mode, the signal processing module 802 then transmits the analyzed and processed signals to the calculating and displaying module 803, the calculating and displaying module 803 correspondingly calculates the collected signals and displays a chart on the main control computer 700 in real time, while the calculation and display module 803 passes the acquired signals to the storage and data output module 804, meanwhile, the signal processing module 802, the calculation and display module 803 and the storage and data output module 804 transmit and communicate information data with the database 601.
After the test is finished, the printer is started, and prints the experimental data and results in the database 601 in the main control computer 700, so that the experimental data and results can be conveniently checked and analyzed manually.
In conclusion, the internal combustion engine tail gas emission detection system provided by the structure of the invention can visually observe and record the change of the average concentration of various emission pollutants in the whole cycle working condition process of the internal combustion engine, is beneficial to the research and analysis of emission detection, and provides theoretical reference for the manufacture and processing of the internal combustion engine; by setting software of an internal combustion engine tail gas emission detection system in the main control computer, data are automatically recorded and relevant calculation is completed after an internal combustion engine test is finished, and an emission result of the internal combustion engine is obtained, so that whether the emission of the internal combustion engine meets requirements and whether the internal combustion engine is in compliance or not is quickly and accurately judged, and basis and standard are provided for manufacturing internal combustion gas.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention by equivalent replacement or change according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The utility model provides an internal-combustion engine exhaust emissions detecting system, includes internal-combustion engine (100), its characterized in that still includes blast pipe (200), gas analysis appearance (300), oil consumption appearance (400), dynamometer (500), data acquisition card (600) and main control computer (700), interior gas is passed through blast pipe (200) and is connected with gas analysis appearance (300), and interior gas is connected with oil consumption appearance (400) and dynamometer (500), and oil consumption appearance (400) and dynamometer (500) are direct to be connected with main control computer (700), and gas analysis appearance (300) are connected with main control computer (700) through data acquisition card (600).
2. The system according to claim 1, wherein the connection between the gas analyzer (300) and the data acquisition card (600) is a single-ended connection, i.e. the positive and negative electrodes of the gas analyzer (300) are directly connected to the positive and negative electrodes of the data acquisition card (600).
3. The system for detecting the exhaust emission of the internal combustion engine according to claim 1, wherein the data acquisition card (600) is directly connected to the main control computer (700) through a USB interface, and the main control computer (700) is connected to the data acquisition card (600) through a terminal board.
4. The system for detecting the exhaust emission of the internal combustion engine according to claim 1, wherein the main control computer (700) is internally provided with internal combustion engine exhaust emission detection software (800).
5. An exhaust emission detection system of an internal combustion engine according to claim 1, wherein said main control computer (700) is further internally provided with a database (601).
6. The system for detecting the exhaust gas emission of the internal combustion engine according to claim 1, wherein the software (800) for detecting the exhaust gas emission of the internal combustion engine comprises a data acquisition module (801), a signal processing module (802), a calculation and display module (803) and a storage and data output module (804), and the data acquisition module (801), the signal processing module (802), the calculation and display module (803) and the storage and data output module (804) are sequentially connected end to end.
7. The system according to claim 1, further comprising a printer.
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| CN202011250205.7A CN114544862A (en) | 2020-11-11 | 2020-11-11 | Internal combustion engine tail gas emission detection system |
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| CN202011250205.7A CN114544862A (en) | 2020-11-11 | 2020-11-11 | Internal combustion engine tail gas emission detection system |
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|---|---|---|---|---|
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| CN111238570A (en) * | 2020-01-19 | 2020-06-05 | 北京理工大学 | Ship exhaust pollutant detection system and method |
-
2020
- 2020-11-11 CN CN202011250205.7A patent/CN114544862A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106912A (en) * | 1986-10-12 | 1987-09-02 | 吉林工业大学 | Diesel engine rated power and specified specific fuel consumption fast detecting instrument |
| DE19701110A1 (en) * | 1997-01-15 | 1998-07-16 | Hermann Electronic Gmbh | Internal combustion engine tester for analysing analogue measurement signals of engine |
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| TW201504625A (en) * | 2013-07-29 | 2015-02-01 | Weier Well Ltd Company | On-board dynamic exhaust air pollution analysis device and inspection method thereof |
| CN104571094A (en) * | 2015-01-08 | 2015-04-29 | 北京动力机械研究所 | Detection device for engine fuel supply control system |
| CN105424372A (en) * | 2015-11-12 | 2016-03-23 | 东北石油大学 | Multi-parameter internal combustion engine load characteristic detection device and detection method thereof |
| CN109736954A (en) * | 2018-12-06 | 2019-05-10 | 芜湖市努尔航空信息科技有限公司 | A kind of Aeroengine Fault Monitoring system |
| CN111238570A (en) * | 2020-01-19 | 2020-06-05 | 北京理工大学 | Ship exhaust pollutant detection system and method |
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