CN201047836Y - Engine tail gas catalytic converter liveness evaluation system - Google Patents
Engine tail gas catalytic converter liveness evaluation system Download PDFInfo
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- CN201047836Y CN201047836Y CNU2007200964017U CN200720096401U CN201047836Y CN 201047836 Y CN201047836 Y CN 201047836Y CN U2007200964017 U CNU2007200964017 U CN U2007200964017U CN 200720096401 U CN200720096401 U CN 200720096401U CN 201047836 Y CN201047836 Y CN 201047836Y
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Abstract
The utility model relates to an activeness evaluation system of engine exhaust catalytic converter, which consists of an engine valve subsystem, a temperature control subsystem, a reaction subsystem, a gasometric analysis subsystem and a data collection control subsystem; wherein, the output end of the engine valve subsystem respectively connects with the reaction subsystem and the gasometric analysis subsystem; the temperature control subsystem is connected with the reaction subsystem; the reaction subsystem connects with the gasometric analysis subsystem; and the data collection control subsystem is respectively connected with the engine valve subsystem, the reaction subsystem, the temperature control subsystem and the gasometric analysis subsystem. The utility model takes the simulation waste gas configured by a high-precision flow controller as the gas source; enabling the catalyst to do activeness evaluation experiment by human control. The system has stable gas source, good repeatability, and high degree of automation and high precision of temperature control. Besides, the temperature rise ratio in a plurality of sections can be flexibly controlled. The waste gas analyzer can measure the air consistency before and after the catalyst, and at the same time or respectively has the functions of combustion initiation temperature characteristic experiment, air-fuel ratio characteristic test and airspeed characteristic test.
Description
Technical field
The utility model relates to a kind of evaluation system.Particularly relate to a kind of catalyst converter that can make and under artificial controlled atmosphere, carry out active appraisal experiment, source of the gas is stable in the experimentation, good reproducibility, system automation degree height, engine tail gas catalyzed converter activation evaluating system simple to operation, as to have very high experimental precision and reliability.
Background technology
Along with a large amount of uses of vehicle, pollution on the environment is serious all the more.At present, the discharging that catalytic cleaner reduces dusty gas in the waste gas being installed in vehicle exhaust system is main solution.And the purifying rate of catalytic cleaner need be estimated, and catalyst converter active evaluation test device is necessary in catalyst converter production, check, application process, and initiation temperature is the important activity index of catalyst converter.
Original catalyst converter active appraisal experiment, with engine exhaust as source of the gas, the full-scale catalyst converter that uses with engine is as by the test unit of evaluation object, because the engine emission composition is difficult to control, source of the gas environment poor repeatability, cause between the data of catalyst converter activity rating comparability poor, the activity of evaluation catalyst converter that can not be fair.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of catalyst converter that can make under artificial controlled atmosphere, to carry out active appraisal experiment, source of the gas is stable in the experimentation, good reproducibility, system automation degree height, engine tail gas catalyzed converter activation evaluating system simple to operation, as to have very high experimental precision and reliability.
The technical scheme that the utility model adopted is: a kind of engine tail gas catalyzed converter activation evaluating system includes: the distribution subsystem of the waste gas that produces when being used to prepare the simulated engine running; The temperature control subsystem of the required temperature environment of catalyst converter evaluation experimental is provided; With the mixed gas of preparation and the reaction subsystem of tested catalyst converter sample generation chemical reaction; Measure the gas analysis subsystem of forward and backward each constituent concentration of gas of catalyst converter; Be used to control the data acquisition control subsystem of the normal operation of each subsystem; Wherein, the output terminal of distribution subsystem is coupled reaction subsystem, gas analysis subsystem respectively, the temperature control subsystem is connected with the reaction subsystem, the reaction subsystem is connected with the gas analysis subsystem, and the data acquisition control subsystem is connected with distribution subsystem, reaction subsystem, temperature control subsystem, gas analysis subsystem respectively.
Described distribution subsystem includes: many flow controllers that are used for the corresponding connection of required gas with various; The mixing chamber that is used to carry out the gas mixing that links to each other with each flow controller.
Described distribution subsystem also is provided with the water vapour generating means that is connected with mixing chamber.
Described reaction subsystem is to be made of reactor and catalyst converter, and wherein catalyst converter is arranged in the reactor.
Described temperature control subsystem includes: the well heater that is connected with reactor; Thermopair that is connected with reactor and the thermopair that is connected with well heater; The temperature controller that is connected with thermopair with thermopair respectively.
Described gas analysis subsystem is to be made of analyser.
Described data acquisition control subsystem is to be made of computing machine.
Engine tail gas catalyzed converter activation evaluating system of the present utility model, adopt high precision pump configuration simulated exhaust as source of the gas, can make catalyst converter under artificial controlled atmosphere, carry out active appraisal experiment, source of the gas is stable in the experimentation, good reproducibility, system automation degree height, temperature control is accurately, can realize that the different temperature rise rates of multi-region section control flexibly, exhaust-gas analyzer can be measured the forward and backward gas concentration of catalyst converter.Equipment also has functions such as data sampling and storage.Can control the distribution precision accurately, the real time record experimental data graphically shows experiment course, simple to operation, has very high experimental precision and reliability.Engine tail gas catalyzed converter activation evaluating system of the present utility model possesses at the same time or separately: initiation temperature attribute testing, air-fuel ratio attribute testing, air speed attribute testing function.
Description of drawings
Fig. 1 is an entire block diagram of the present utility model;
Fig. 2 is an one-piece construction synoptic diagram of the present utility model;
Wherein:
A: distribution subsystem B: reaction subsystem
C: temperature control subsystem D: gas analysis subsystem
E: data acquisition control subsystem 1: water vapour generating means
2,3,4,5,6,7: flow controller 8: mixing chamber
9: switch valve 10: switch valve
11: reactor 12: well heater
13: catalyst converter 14: thermopair
15: thermopair 16: temperature controller
17: suspended body flowmeter 18: suspended body flowmeter
19: analyser 20: the data acquisition control subsystem
Embodiment
Below in conjunction with the drawings and specific embodiments, engine tail gas catalyzed converter activation evaluating system of the present utility model is made a detailed description.
As shown in Figure 1, engine tail gas catalyzed converter activation evaluating system of the present utility model includes: the distribution subsystem A of the waste gas that produces when being used to prepare the simulated engine running; The temperature control subsystem C of the required temperature environment of catalyst converter evaluation experimental is provided; With the mixed gas of preparation and the reaction subsystem B of tested catalyst converter sample generation chemical reaction; Measure the gas analysis subsystem D of forward and backward each constituent concentration of gas of catalyst converter; Be used to control the data acquisition control subsystem E of the normal operation of each subsystem; Wherein, the output terminal of distribution subsystem A is coupled reaction subsystem B, gas analysis subsystem D respectively, temperature control subsystem C is connected with reaction subsystem B, reaction subsystem B is connected with gas analysis subsystem D, and data acquisition control subsystem E is connected with distribution subsystem A, reaction subsystem B, temperature control subsystem C, gas analysis subsystem D respectively.
As shown in Figure 2, between the output terminal of described distribution subsystem A and the gas analysis subsystem D, and also be provided with between the output terminal of reaction subsystem B and the gas analysis subsystem D and be used to control the suspended body flowmeter 17 that enters the interior gas flow of gas analysis subsystem D, simultaneously, this output terminal of this output terminal of distribution subsystem A and reaction subsystem B also is connected and is used for the suspended body flowmeter 18 that pilot-gas directly flows to atmosphere.
As shown in Figure 2, described distribution subsystem A includes: many flow controllers 2,3,4,5,6,7 that are used for the corresponding connection of required gas with various; The mixing chamber 8 that is used to carry out the gas mixing that links to each other with each flow controller; Link to each other in order selectively to export mixed gas, also to be provided with, be used for selecting the gas for preparing is sent into switch valve 9 and the switch valve 10 that reacts among subsystem B or the gas analysis subsystem D with the output terminal of mixing chamber 8.Control each composition gas flow by flow controller, after mixing, obtain the mixed gas of finite concentration and flow, the waste gas that produces when being used for the simulated engine running.Flow controller adopts AI series flow controller in the present embodiment.
Described distribution subsystem A also is provided with the water vapour generating means 1 that is connected with mixing chamber 8.Can be according to the experiment needs, the concentration of regulating water vapour adds water vapour in the combination gas.
Distribution subsystem A provides the catalyst converter active appraisal experiment required atmosphere.Optional flow controller 2,3,4,5,6,7 by 6 full scale 1L/min, according to the combination gas aimed concn of steel cylinder internal standard gas concentration, needs configuration and the flow that the combination gas total flow is calculated each branch road, in view of the above each branch road gas flow controller is set; Produce a certain amount of water vapour by water vapour generating means 1, together mix through mixing chamber 8 with other several roads gases; Switch valve 9,10 is used for the circulation of pilot-gas and whether passes through catalyst converter.
Described reaction subsystem B is made of reactor 11 and catalyst converter 13, and wherein catalyst converter 13 is arranged in the reactor 11.Reactor described in the present embodiment adopts number of patent application to be: disclosed technology among the ZL200510013777.2.Reactor 11 is used to carry the catalyst converter sample, and in reactor 11, the combination gas of distribution subsystem configures flows into reaction subsystem and tested catalyst converter sample generation chemical reaction after the temperature control subsystem.
Described temperature control subsystem C provides the catalyst converter active appraisal experiment required temperature environment.Include: the well heater 12 that is connected with reactor 11; Thermopair 14 that is connected with reactor 11 and the thermopair 15 that is connected with well heater 12; The temperature controller 16 that is connected with thermopair 15 with thermopair 14 respectively.The combination gas of distribution subsystem configures flows through well heater, by temperature controller control heater rate temperature change, provides the catalyst converter evaluation experimental required temperature environment.Temperature controller 16 has programmed control intensification function, can set the heating rate and the temperature hold-time of well heater 12 according to demand.Gas temperature before the temperature of thermopair 14,15 HEATER FOR MEASURING and catalyst converter 13 inlets, also can test factually needs to increase point for measuring temperature.Temperature controller 16 adopts the temperature controller of AI series in the present embodiment.
Described gas analysis subsystem D is made of analyser 19.Analyser 19 adopts the HORIBA analyser in the present embodiment.The operational analysis instrument is measured forward and backward each constituent concentration of gas of catalyst converter, and measurement data is fed back to data acquisition control subsystem 20.
Described data acquisition control subsystem E is to be made of computing machine.Be used for coordination subsystem and normally move, experimental data is shown in real time, operations such as form, curve display, the inquiry of historical data, printing.
Engine tail gas catalyzed converter activation evaluating system of the present utility model, integral body is configurable to be gone out to meet the combination gas of setting concentration and flow and keeps stable in ignition temperature of catalyst attribute testing process, utilize temperature control system to change mixture temperature, gas analyzing apparatus measure analog waste gas flows through the concentration behind the catalyst converter, investigates and can obtain the ignition temperature of catalyst family curve with the temperature variant course of relative attenuating value (being purifying rate) of original concentration.
Claims (7)
1. an engine tail gas catalyzed converter activation evaluating system is characterized in that, includes: the distribution subsystem (A) of the waste gas that produces when being used to prepare the simulated engine running; The temperature control subsystem (C) of the required temperature environment of catalyst converter evaluation experimental is provided; With the mixed gas of preparation and the reaction subsystem (B) of tested catalyst converter sample generation chemical reaction; Measure the gas analysis subsystem (D) of forward and backward each constituent concentration of gas of catalyst converter; Be used to control the data acquisition control subsystem (E) of the normal operation of each subsystem; Wherein, the output terminal of distribution subsystem (A) is coupled reaction subsystem (B), gas analysis subsystem (D) respectively, temperature control subsystem (C) is connected with reaction subsystem (B), reaction subsystem (B) is connected with gas analysis subsystem (D), and data acquisition control subsystem (E) is connected with distribution subsystem (A), reaction subsystem (B), temperature control subsystem (C), gas analysis subsystem (D) respectively.
2. engine tail gas catalyzed converter activation evaluating system according to claim 1 is characterized in that, described distribution subsystem (A) includes: many flow controllers (2,3,4,5,6,7) that are used for the corresponding connection of required gas with various; The mixing chamber (8) that is used to carry out the gas mixing that links to each other with each flow controller.
3. engine tail gas catalyzed converter activation evaluating system according to claim 2 is characterized in that, described distribution subsystem (A) also is provided with the water vapour generating means (1) that is connected with mixing chamber (8).
4. engine tail gas catalyzed converter activation evaluating system according to claim 1 is characterized in that, described reaction subsystem (B) is to be made of reactor (11) and catalyst converter (13), and wherein catalyst converter (13) is arranged in the reactor (11).
5. engine tail gas catalyzed converter activation evaluating system according to claim 1 is characterized in that, described temperature control subsystem (C) includes: the well heater (12) that is connected with reactor (11); Thermopair (14) that is connected with reactor (11) and the thermopair (15) that is connected with well heater (12); The temperature controller (16) that is connected with thermopair (15) with thermopair (14) respectively.
6. engine tail gas catalyzed converter activation evaluating system according to claim 1 is characterized in that, described gas analysis subsystem (D) is to be made of analyser (19).
7. engine tail gas catalyzed converter activation evaluating system according to claim 1 is characterized in that described data acquisition control subsystem (E) is to be made of computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200964017U CN201047836Y (en) | 2007-06-15 | 2007-06-15 | Engine tail gas catalytic converter liveness evaluation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200964017U CN201047836Y (en) | 2007-06-15 | 2007-06-15 | Engine tail gas catalytic converter liveness evaluation system |
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| CN201047836Y true CN201047836Y (en) | 2008-04-16 |
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| CNU2007200964017U Expired - Lifetime CN201047836Y (en) | 2007-06-15 | 2007-06-15 | Engine tail gas catalytic converter liveness evaluation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281153B (en) * | 2008-05-21 | 2011-11-09 | 宁波大学 | Air/fuel ratio oxygen sensor performance measuring system |
| CN106404402A (en) * | 2016-09-09 | 2017-02-15 | 浙江大学 | Diesel engine full-dimension SCR catalytic reactor performance test platform based on tail gas simulation |
| CN107228762A (en) * | 2017-06-26 | 2017-10-03 | 湘潭大学 | A kind of test engine catalyst flowing and the experimental provision of conversion performance |
| US10346962B2 (en) | 2012-02-10 | 2019-07-09 | Corning Incorporated | Nondestructive method to predict isostatic strength in ceramic substrates |
-
2007
- 2007-06-15 CN CNU2007200964017U patent/CN201047836Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281153B (en) * | 2008-05-21 | 2011-11-09 | 宁波大学 | Air/fuel ratio oxygen sensor performance measuring system |
| US10346962B2 (en) | 2012-02-10 | 2019-07-09 | Corning Incorporated | Nondestructive method to predict isostatic strength in ceramic substrates |
| CN106404402A (en) * | 2016-09-09 | 2017-02-15 | 浙江大学 | Diesel engine full-dimension SCR catalytic reactor performance test platform based on tail gas simulation |
| CN106404402B (en) * | 2016-09-09 | 2019-01-08 | 浙江大学 | The full-scale SCR catalyst Testing Platform of diesel engine based on tail gas simulation |
| CN107228762A (en) * | 2017-06-26 | 2017-10-03 | 湘潭大学 | A kind of test engine catalyst flowing and the experimental provision of conversion performance |
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Granted publication date: 20080416 |
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| CX01 | Expiry of patent term |