CN104330270A - Automobile exhaust purifier performance detection system - Google Patents
Automobile exhaust purifier performance detection system Download PDFInfo
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- CN104330270A CN104330270A CN201410502291.4A CN201410502291A CN104330270A CN 104330270 A CN104330270 A CN 104330270A CN 201410502291 A CN201410502291 A CN 201410502291A CN 104330270 A CN104330270 A CN 104330270A
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Abstract
The invention introduces an automobile exhaust purifier performance detection system comprising an air transmission pipe which is used for being connected with an automobile exhaust vent. Multiple detection branches, which are formed by stop valves, exhaust purifiers, air filters, dryers and flow controllers via series connection through pipelines, are connected in parallel on the air transmission pipe. The output ends of the flow controllers of all the detection branches are connected with an exhaust gas analyzer. The output end of the exhaust gas analyzer is connected with an exhaust pipe. The pipelines to which the output ends of the stop valves of all the detection branches are connected penetrate through a temperature control box to be connected with the corresponding exhaust purifiers. The pipelines to which the output ends of the exhaust purifiers of all the detection branches are connected penetrate through a condenser to be connected with the corresponding air filters. Catalytic performance of multiple exhaust purifiers with smaller size under the same condition can be compared in real time by the system, testing and performance evaluation can also be performed on full-flow and large-size catalytic reactors, and real and accurate detection results can be acquired.
Description
Technical field
The present invention relates to a kind of performance detecting system of automobile exhaust purifier, the clarifier that this system is mainly used in being arranged on vehicle exhaust exhausr port carries out performance test, and by analyzing, comparing the evaluation drawn clarifier changing effect, to improve work efficiency when people's detection, screening clarifier.
Background technology
Along with socioeconomic development, the demand of automobile is surged, the annual turnover of China's automobile close to 2,000 ten thousand, tail gas also one of primary pollution source becoming air of simultaneously motor vehicle emission.In order to reduce the pollution that vehicle exhaust causes, China has formulated strict Abgasgesetz in succession.Wherein, in vehicle exhaust system, installing catalytic cleaner to reduce the discharge of dusty gas in waste gas is one of main solution.
Existing catalytic cleaner normally loads catalyzer in purifier shell, and introduced in clarifier by the tail gas that automobile is discharged during use, tail gas is discharged in air after catalyst cleaning process again.At present, equipment for the catalyst performance in test purifier also compares shortage, the general mode of artificial distribution that adopts carries out performance test more, by CO, NOx, HC etc. form the main harmful gas of motor-vehicle tail-gas, be mixed with the vehicle exhaust of simulation by physical control structure according to certain ratio, again the vehicle exhaust of simulation is input in clarifier, finally by the content measuring gas after clarifier process being carried out to objectionable impurities, draw clarifier inner catalyst active, although this traditional mode of the evaluation mouth of the performances such as permanance can the activity of more accurate ground evaluate catalysts, the performances such as permanance, but, the simulated automotive tail gas of artificial preparation needs to configure special source of the gas, require very strict to the flow control that gas is stopped, its pipeline configuration and gaseous mass operation valve block also more complicated, and higher to gaseous mass purity requirement: in addition, the simulated automotive tail gas of artificial preparation is not the real emission gases of engine after all, test result has the limitation of a bandit, in addition, most of catalyst test device has only used a reactant gas source, the anti-sampling system of this relatively single sampling, the catalytic performance of a kind of catalyzer under some working conditions can only be tested out at every turn, therefore the efficiency of its screening catalyzer is very low, is generally suitable only for laboratory study and uses.
Summary of the invention
The present invention is directed to and now also there is no a set of deficiency being specifically designed to the equipment detecting automobile exhaust purifier performance at present, introduce one can carry out performance test to multiple exhaust purifier under identical conditions simultaneously, and the performance detecting system for automobile tail gas purifier that detection efficiency is higher.
Technical scheme of the present invention: performance detecting system for automobile tail gas purifier; it is characterized in that; comprise the gas piping for connecting vehicle exhaust exhausr port; described gas piping is parallel with some by stop valve, exhaust purifier, air strainer, exsiccator and flow controller by placed in series after the detection branch that forms; the output terminal of the flow controller in described each detection branch is all connected to exhaust gas analyzer, is connected with gas outlet at the output terminal of described exhaust gas analyzer; The pipeline that the output terminal of the stop valve in described each detection branch connects all connects with corresponding exhaust purifier through temperature control box, and the pipeline that the output terminal of the exhaust purifier in described each detection branch connects all connects with corresponding air strainer through condenser; Exhaust purifier in described each bar detection branch is all arranged in insulation can.
In the present invention, different catalyzer can be prepared respectively to carry out performance test in exhaust purifier in each bar detection branch, and the pattern that many detection branch work simultaneously can be adopted, because each bar detection branch is under the effect of temperature control box and condenser, the temperature of catalytic reaction is identical, so just can help the difference of people's compare test result under same environmental conditions, thus fast and easy filters out the more excellent exhaust purifier of performance.
More preferably, described gas piping is also connected with an exhaust branch pipe, described exhaust branch pipe is provided with surplus valve and sound suppressor.The object of installing exhaust branch pipe is that vehicle exhaust is overflowed by surplus valve, more emptying after sound suppressor is eliminated the noise when the tail gas force value of automobile discharge exceedes setting value.Unnecessary tail gas can be drained by exhaust branch pipe, prevent tail gas flow velocity from causing catalytic reaction insufficient too soon, affect testing result, noise pollution when simultaneously sound suppressor can also reduce exhaust.
More preferably, described gas piping is also parallel with one by the single channel detection branch formed after stop valve, binary catalyst reactor, the gentle series connection of pumps of air strainer, described gas delivery side of pump connects the input end of exhaust gas analyzer.Single channel detection branch in the present invention is mainly used in test traffic and all larger catalytic reactor of volume, enters the reacted gas of blue first catalytic reactor after air strainer filters, then tests by air pump suction exhaust gas analyzer.
Relative to prior art, the present invention has following beneficial effect:
1, multiple independently sense channel is provided with in detection system of the present invention, each sense channel can be installed connection exhaust purifier respectively and carry out independently Performance Detection, thus the object of simultaneously carrying out multiple exhaust purifier performance test can be reached, improve test, the efficiency of screening, and in whole system, owing to have employed all-in-one-piece temperature control box and insulation can, therefore the environmental baseline of each sense channel is substantially identical, thisly under identical conditions, test obtained test result have more comparability, therefore the evaluation result detected after contrast is also more intuitive and reliable.
2, do not need complicated gas distribution pipeline and operation valve block to generate the vehicle exhaust of simulation in the present invention, but directly adopt motor exhaust as detection medium, and utilize hyperchannel exhaust analyzer to carry out testing result assessment, it both can detect in real time, compare the catalytic performance of the exhaust purifier of multiple small volume under identical conditions, also can the three-way catalytic converter larger to full flow volume test and assess in real time, its scope of application is wider, is also conducive to the accuracy improving testing result.
Accompanying drawing explanation
Fig. 1 is the structural representation of detection system of the present invention.
In figure, 1 one vehicle exhaust exhausr ports, 2 one gas pipings, 3 one stop valves, 4 one temperature control boxs, 5 one exhaust purifiers, 6 one condensers, 7 one air strainers, 8 one exsiccators, 9 one flow controllers, 10 1 exhaust gas analyzers, 11 1 gas outlets, 12 insulation cans, 13 1 surplus valves, 14 sound suppressors, 15 1 well heaters, 16 frequency conversion radiator fans, 17 semiconductor heating radiators, 18 1 temperature controllers, 19 1 exhaust branch pipes, 20 1 three-way catalytic converter, 21 1 air pumps.
Embodiment
Below in conjunction with the drawings and specific embodiments, wood invention is described further.
As shown in Fig. 1, performance detecting system for automobile tail gas purifier, comprise the gas piping 2 for connecting vehicle exhaust exhausr port 1, described gas piping 2 is parallel with some by stop valve 3, exhaust purifier 5, air strainer 7, exsiccator 8 and the detection branch of flow controller 9 by forming after placed in series, the output terminal of the flow controller 9 in described each detection branch is all connected to exhaust gas analyzer 10, exhaust gas analyzer 10 in the present invention is the detection analytical equipment of prior art, it by input gas analyze after, the ratio of each composition in output display gas, be provided with multiple independently input interface at the input end of exhaust gas analyzer 10, can meet the testing requirement of many detection branch, be connected with gas outlet 11 at the output terminal of described exhaust gas analyzer 10, tail gas is discharged in air after gas outlet 11.In the present invention, the pipeline that the output terminal of the stop valve 3 in described each detection branch connects all connects with corresponding exhaust purifier 5 through temperature control box 4, well heater 15 is provided with in the bottom of described temperature control box 4, on the top of described temperature control box 4, frequency conversion radiator fan 16 is installed, thermostatic control can be carried out to the vehicle exhaust of input by temperature control box 4, can ensure that the gas exported meets the temperature of reaction requirement of catalyzer like this.The pipeline that the output terminal of the exhaust purifier 5 in described each detection branch connects all is connected with to same air strainer 7 through condenser 6, radiator for semiconductor 17 is provided with and for regulating the temperature controller 18 of radiator for semiconductor 17 in described condenser 6, described radiator for semiconductor 17 and temperature controller 18 all adopt prior art equipment, during use, in condenser 6, deposit has chilled water, the refrigeration work consumption of radiator for semiconductor 17 can be controlled by temperature controller 18, radiator for semiconductor 17 then implements cooling to the chilled water in condenser 6, pipeline in condenser 6 is also synchronously lowered the temperature, thus reach to the object of vehicle exhaust cooling.Better stability can be kept for making the catalytic reaction occurred in exhaust purifier 5, exhaust purifier 5 in each bar detection branch is all arranged in insulation can 12 by the present invention, the control mode of temperature programme can be adopted in insulation can 12, heat temperature raising is carried out to the vehicle exhaust of input, meets the test job under condition of different temperatures.
In the present invention, the quantity configuration scope of detection branch is 1 ~ 15, and in detection branch, the volume requirement of exhaust purifier 5 is more than or equal to 5ml, if volume is too small, can affect catalytic reaction effect, causes reaction insufficient; If detection branch quantity is too much, can increases, the air pressure in each branch road is reduced, easily causes gas flow rate to slow down the demand of vehicle exhaust, this is unfavorable for improving the efficiency detecting, screen.
During test; the tail gas of engine discharge is introduced into detection system of the present invention through gas piping 2; tail gas is entered with well heater 15 and hands in the temperature control box 4 of frequency dispersion Hot-air fan 16 and carry out thermostatic control after being shunted by stop valve 3, object is to make the gas of output to meet the temperature of reaction requirement of catalyzer; Then gas enters and can carry out catalytic reaction by the exhaust purifier in the insulation can 12 of temperature programme, gas after catalytic reaction enters in condenser 6, cooled by semiconductor heat-dissipating sheet 17 and temperature controller 18, gas more successively, flow controller 9 dry through air strainer 7 removal of impurity, exsiccator 8 control flow laggard enter respective channel on multichannel exhaust gas analyzer 10 detect, it is emptying that gas outlet 11 is crossed on gas limit after detection, and exhaust gas analyzer 10 is by testing result output display.
See Fig. 1, described gas piping 2 is also connected with an exhaust branch pipe 19, described exhaust branch pipe 19 is provided with surplus valve 13 and sound suppressor 14, one end connecting gas transmission pipe 2 of exhaust branch pipe 19, the other end is connected with gas outlet 11.When vehicle exhaust pressure exceedes setting value, surplus valve 13 will be opened, and tail gas is emptying by exhaust branch pipe 19, and due to the effect of sound suppressor 14, the noise overflowing gas also can be controlled in more among a small circle.
See Fig. 1, described gas piping 2 is also parallel with one by the single channel detection branch formed after stop valve 3, binary catalyst reactor 20, air strainer 7 and air pump 21 are connected, the output terminal of described air pump 21 connects the input end of exhaust gas analyzer 10.The effect of described single channel detection branch is the catalytic reactor that test traffic and volume are all larger, when using single channel detection branch to test, for ensureing the gas flow of admission passage, need the stop valve of all the other detection branch of temporary close, vehicle exhaust enters three-way catalytic converter 20 and carries out catalytic reaction after the stop valve 3 in single channel detection branch, then under air pump 21 acts on, air strainer 7 dedusting is entered, more emptying after exhaust gas analyzer 10 detects.
Detection system of the present invention both can compare in real time, detect the catalytic performance of the exhaust purifier of multiple small volume under identical conditions, reach the object improving catalyst screening efficiency, also can test and performance evaluation the three-way catalytic converter of full flow, large volume, and draw truly, testing result accurately.
Claims (6)
1. performance detecting system for automobile tail gas purifier, it is characterized in that, comprise the gas piping (2) for connecting vehicle exhaust exhausr port (1), described gas piping (2) is parallel with some by stop valve (3), exhaust purifier (5), air strainer (7), the detection branch that exsiccator (8) and flow controller (9) are formed after placed in series, the output terminal of the flow controller (9) in described each detection branch is all connected to exhaust gas analyzer (10), gas outlet (11) is connected with at the output terminal of described exhaust gas analyzer (10), the pipeline that the output terminal of the stop valve (3) in described each detection branch connects all connects with corresponding exhaust purifier (5) through temperature control box (4), and the pipeline that the output terminal of the exhaust purifier (5) in described each detection branch connects all connects with corresponding air strainer (7) through condenser (6): the exhaust purifier (5) in described each bar detection branch is all arranged in insulation can (12).
2. according to the performance detecting system for automobile tail gas purifier described in claim 1, it is characterized in that, described gas piping (2) is also parallel with one by the single channel detection branch formed after the series connection of stop valve (3), three-way catalytic converter (20), air strainer (7) and air pump (21), the output terminal of described air pump (21) connects the input end of exhaust gas analyzer (10).
3. according to the performance detecting system for automobile tail gas purifier described in claim 1, it is characterized in that, be provided with well heater (15) in the bottom of described temperature control box (4), on the top of described temperature control box (4), frequency conversion radiator fan (16) be installed.
4. according to the performance detecting system for automobile tail gas purifier described in claim 1, it is characterized in that, in described condenser (6), being provided with radiator for semiconductor (17) and for regulating the temperature controller (18) of radiator for semiconductor (17).
5. according to the performance detecting system for automobile tail gas purifier described in claim 1, it is characterized in that, described gas piping (2) is also connected with an exhaust branch pipe (19), described exhaust branch pipe (19) is provided with surplus valve (13) and sound suppressor (14).
6. according to the performance detecting system for automobile tail gas purifier described in claim 1, it is characterized in that, the volume of described exhaust purifier (5) is more than or equal to 5ml.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410502291.4A CN104330270A (en) | 2014-09-26 | 2014-09-26 | Automobile exhaust purifier performance detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410502291.4A CN104330270A (en) | 2014-09-26 | 2014-09-26 | Automobile exhaust purifier performance detection system |
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| CN104330270A true CN104330270A (en) | 2015-02-04 |
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| CN201410502291.4A Pending CN104330270A (en) | 2014-09-26 | 2014-09-26 | Automobile exhaust purifier performance detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949852A (en) * | 2015-06-30 | 2015-09-30 | 国电科学技术研究院 | On-site contrast test system and method for incoming air filtering system of gas turbine |
| CN107167333A (en) * | 2017-06-16 | 2017-09-15 | 苏州博菡环保科技有限公司 | A kind of performance detecting system for automobile tail gas purifier |
| GB2545976B (en) * | 2015-11-11 | 2019-04-03 | Horiba Mira Ltd | An exhaust flow tube system for use with emissions test equipment and associated parts and systems |
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| JP2005233117A (en) * | 2004-02-20 | 2005-09-02 | Hino Motors Ltd | Control method of exhaust purifier |
| CN101982771A (en) * | 2010-10-27 | 2011-03-02 | 重庆海特汽车排气系统有限公司 | Performance detecting system for automobile tail gas purifier |
| CN201828558U (en) * | 2010-10-27 | 2011-05-11 | 重庆海特汽车排气系统有限公司 | Multi-channel detecting device for automobile exhaust purifier |
| CN203214145U (en) * | 2013-03-28 | 2013-09-25 | 宁波科森净化器制造有限公司 | Detecting device of automobile tail gas purifier |
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2014
- 2014-09-26 CN CN201410502291.4A patent/CN104330270A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005233117A (en) * | 2004-02-20 | 2005-09-02 | Hino Motors Ltd | Control method of exhaust purifier |
| CN101982771A (en) * | 2010-10-27 | 2011-03-02 | 重庆海特汽车排气系统有限公司 | Performance detecting system for automobile tail gas purifier |
| CN201828558U (en) * | 2010-10-27 | 2011-05-11 | 重庆海特汽车排气系统有限公司 | Multi-channel detecting device for automobile exhaust purifier |
| CN203214145U (en) * | 2013-03-28 | 2013-09-25 | 宁波科森净化器制造有限公司 | Detecting device of automobile tail gas purifier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949852A (en) * | 2015-06-30 | 2015-09-30 | 国电科学技术研究院 | On-site contrast test system and method for incoming air filtering system of gas turbine |
| CN104949852B (en) * | 2015-06-30 | 2019-05-03 | 国电科学技术研究院 | A kind of gas turbine inlet air filtration system for field contrast test system and test method |
| GB2545976B (en) * | 2015-11-11 | 2019-04-03 | Horiba Mira Ltd | An exhaust flow tube system for use with emissions test equipment and associated parts and systems |
| CN107167333A (en) * | 2017-06-16 | 2017-09-15 | 苏州博菡环保科技有限公司 | A kind of performance detecting system for automobile tail gas purifier |
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Application publication date: 20150204 |