CN2736776Y - Motorcycle exhaustion contaminant measuring apparatus - Google Patents
Motorcycle exhaustion contaminant measuring apparatus Download PDFInfo
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- CN2736776Y CN2736776Y CN 200420029056 CN200420029056U CN2736776Y CN 2736776 Y CN2736776 Y CN 2736776Y CN 200420029056 CN200420029056 CN 200420029056 CN 200420029056 U CN200420029056 U CN 200420029056U CN 2736776 Y CN2736776 Y CN 2736776Y
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- motorcycle
- diluted exhaust
- exhaust
- measuring apparatus
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Abstract
The utility model discloses a motorcycle exhaustion contaminant measuring apparatus with reliability and practicability, easy operation and low price, according with the standard of correlation detection. In the motorcycle exhaustion contaminant measuring apparatus of the utility model, a metered volume diluted exhaust sampling unit (CVS) is successively connected with an analytic instrument unit, while a central computer control unit is respectively connected with two units above. The metered volume diluted exhaust sampling unit (CVS) of the utility model can satisfy the check requirement the 50-250-400 CC, and thus motorcycle exhaustion contaminant measuring apparatus which has wide range of application is suitable for the sampling requirement of diluted exhaust to the motorcycle (50-250) CC, altering the state that this kind of measuring apparatus depends on the import from the foreign completely. As a result, the motorcycle exhaustion contaminant measuring apparatus which is favorable for the national technological development can bring about the beneficial competition that the foreign product price is promoted to be lowered.
Description
Technical field
The utility model relates to the measurement mechanism field, in particular, relates to a kind of motor exhaust contaminant measurement device.
Background technology
China is the first in the world motorcycle big producing country, and annual production surpasses 1,500 ten thousand, accounts for more than 50% of world's motorcycle output.Family surplus the family surplus the domestic Finished Motorcycle of motorcycle manufacturing enterprise about 150, the supporting enterprise of motorcycle component nearly 1000.China still is not motorcycle production power, and still need raisings, especially motor exhaust of research and development ability and product technology level is serious to the pollution problem of atmosphere, and its pollution control measures is demanded reinforcement urgently.
Clean atmosphere is that the mankind rely in one of necessary condition of surviving.The mankind also cause a large amount of objectionable impuritiess to be discharged in the air in the progress of exploitation material, have changed the normal composition of air, and air quality is degenerated, and have destroyed existent environment of people.
Air Pollution prevention and control is a great system engineering, needs the country and the public, and even the joint efforts of global various countries.For this reason, country's promulgation GB14622-2002 decree also will be carried out motorcycle manufacturing enterprise access system.All motorcycles manufacturing enterprise do not possess the motor exhaust contaminant measurement device, product do not reach the limit value of GB14622-2002, its product is forbidden to come into the market.At present national required motor exhaust pollutant operating condition method measurement mechanism is import all, costs an arm and a leg, and domestic device still belongs to blank, and the measurement of correlation device of domestic independent development is badly in need of in domestic middle-size and small-size motorcycle manufacturing enterprise.Therefore, be badly in need of exploitation and meet the motor exhaust contaminant measurement device that the GB14622-2002 national standard requires.
The utility model content
The purpose of this utility model is to fill up the blank that exists in the prior art products, and a kind of reliable and practical, easy operating, cheap, the motor exhaust contaminant measurement device that meets the coherent detection standard are provided.
The utility model motor exhaust contaminant measurement device, be achieved by following technical proposals, constant volume diluted exhaust sampling unit (CVS) links to each other successively with the analytical instrument unit, and the central computer control module is connected with above-mentioned Unit two respectively, described constant volume diluted exhaust sampling unit is by background air-filtering and motor exhaust dilution process cabinet, the diluted exhaust constant volume flows and presses operating condition method continuous sampling switch board, the sample gas reservoir bag, centrifugal blower and connecting line are formed, described diluted exhaust constant volume flows and is provided with constant volume air sampling system by operating condition method continuous sampling switch board, constant volume diluted exhaust potpourri sampling system, described constant volume air sampling system is disposed with filter cleaner, pump, the flowmeter of band flowrate control valve, the pipeline of operation valve links to each other with the air sampling gas pouch, and described constant volume diluted exhaust potpourri sampling system is disposed with filter cleaner, pump, the flowmeter of band flowrate control valve, the pipeline of operation valve links to each other with exhaust mixture sample gas bag; Described analytical instrument unit is made up of carbonyl analyzer, capnograph, hydrocarbon measuring instrument, nitrogen-oxide analyzer, and oxygen analyser; Central computer unit is made of slave computer control program, PLC control program, pc control procedure.
The central computer control module, be distributed Distributed Control System (DCS) (DCS), adopt the 4-20mA electric current as the field signal acquisition mode, as the operation core and the man machine operation interface of system, adopt the communication protocol of RS-485 agreement with the touch operation industrial computer (hereinafter to be referred as touch-screen) of operation embedded OS as data acquisition module and industrial computer.Touch-screen is controlled direct performance element-programmable controller (PLC) by the PC/PPI agreement.
Described analytical instrument unit is arranged in same 19 cun standard meter cabinets.Both sides are trough behind described 19 cun standard meter cabinets, and circuits, gas circuit are buried and be put in the groove.
According to the requirement of national standard (GB14622-2002), the sampling process that detects each time of this device continues 780s, comprises 4 circulations of operation continuously, each circulation by 15 operating modes (contain idling, acceleration, at the uniform velocity with slow down etc.) form; Adopt nondixpersive infrared absorption process (NDIR) measure CO, CO in the analytical instrument unit
2, electrochemical process is measured O
2, hydrogen flameionization method (FID) is measured HC, chemoluminescence method (CLD) and NOx efficient conversion device measuring N O
x
Constant volume exhaustion dilution sampling unit of the present utility model (CVS) can satisfy the detection requirement of 50-250-400CC discharge capacity, and scope of application broadness is best suited for the sampling request that (50～250) CC motor exhaust dilutes.
The utility model changes the situation that this type of measurement mechanism relies on external import fully, brings to help the domestic technique development and promote the useful competition that the external product price reduces.
The utility model is owing to rely on domestic technique and industrial strength, so price is 1/2 of an external import price, and performance reaches the requirement of GB14622-2002 fully, and the ratio of performance to price is apparently higher than external like product.And technical support has had assurance more fully, and the respective services measure gears to actual circumstances, is easy to realize more.
Description of drawings
Fig. 1 is that the utility model diluted exhaust is handled and constant volume continuous sampling system principle synoptic diagram,
Fig. 2 is device arrangements figure in the CVS cabinet,
Fig. 3 is the utility model detection system data flowchart.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Fig. 1 CVS principle schematic, background air sampling system is for being disposed with filter cleaner F
3, pump P
3, band flowrate control valve V
3Flowmeter R
3Pipeline and background air sampling bag S
bLink to each other, constant volume diluted exhaust potpourri sampling system is for being disposed with filter cleaner F
2, pump P
2, band flowrate control valve V
2Flowmeter R
2Pipeline link to each other with exhaust mixture sampler bag Sa.
Fig. 2 is according to main devices technology arrangement figure in the CVS cabinet of Fig. 1 schematic diagram specific implementation.The diluted exhaust of having handled through front end is introduced by the main channel, laid in the main channel have high stability, high precision standard nozzle flowmeter (a kind of venturi-type flowmeter), guaranteed the smooth realization of constant volume flow measurement.The calibrating nozzle flowmeter of installing has 4～8m
3The variable dilutability constant rate of/min is measured, the flow measurement precision reaches excellent 1 grade.Operation CM3 diluted exhaust sampling pump, through turbine rotor flowmeter CL2, filtrator CF2, buffer tank, valve CV34, valve CV24, diluted exhaust enters the diluted exhaust bag.Operation CM1 background air sampling pump, through filter CF1, valve CV31, valve CV21, the background air enters the background air bag.Through valve CV26 (or CV23), valve CV35, valve CV36, suck the diluted exhaust (or background air) that is stored in the sampler bag by the analytical instrument modular pump, enter carbonyl analyzer, capnograph, hydrocarbon measuring instrument and nitrogen-oxide analyzer, etc. respectively successively, each analyser is sent the result into the central computer control system and is handled and analyze.Clean in order to guarantee in the sampler bag, after each test is finished, will start scavenging pump CM2, with background air purge sampler bag, clean sampler bag by valve CV25 or CV22 control.Valve CV38 or CV37 are furnished with pressure transducer PC5 or PC4, in order to guarantee that gaseous tension is no more than limit value in the sampling bag.CP6, CP7 and CP8 are the supervision tensimeter.Valve CV42 and CV41 are adjustable two-port valve, in order to control glass rotameter flow below 400l/h.
The utility model has adopted built-in touch screen as the DCS system of control core structure, running on analytical instrument first at home, and independent development is applicable to that the control program of GB GB14622-2002 operates CVS and analytical instrument unit automatically.A complete set of control program is made of slave computer (touch-screen) control program, PLC control program, pc control procedure, program of lower computer is the control core of system, be responsible for deal with data, send instructions to tasks such as PLC, supervisory system state, host computer procedure is responsible for requiring to finish the calculating discharge value according to national standard, and finishes a series of tasks such as report output, system's monitoring in real time.
The program of central computer unit mainly is made of three parts, i.e. host computer procedure, program of lower computer, PLC program, and host computer procedure mainly is responsible for handling each sensing data, calculates three kinds of gas purging values, and prints measurement result.Program of lower computer runs in the touch-screen, and the data of be responsible for gathering each sensor also send in the host computer, simultaneously to two PLC slave stations send controlled flag position information.The relevant subprogram segment of zone bit information and executing that the PLC program mainly sends according to touch-screen, each auxiliary reclay of switch, the operation of executive system sends each relay status simultaneously to touch-screen, and the system data flow process is as shown in Figure 3.
The utility model instrumental analysis unit, satisfying under the prerequisite of functional requirement, having following characteristics on the structure arrangement: each unit of set analysis instrument, computer measurement and control system, pressure are regulated panel, gas cooled, gas filtration, sampling pump in standard cabinet; Adopt the design of oil-free diaphragm pump at the sampling pump of described analytical instrument; The surplus valve of installing among 19 cun standard meter cabinets is used to regulate the syndeton of the pressure of sample gas; Among 19 cun standard meter cabinets, computer control system places the structure among the active chassis that has stroke road, and among 19 cun standard meter cabinets, back both sides are trough, and circuits, gas circuit are buried the structure that is put in the groove.
This device adopts operating condition method to measure carbon monoxide (CO), hydrocarbon (HC) and oxides of nitrogen (NO in the motor exhaust
x) discharge value, satisfying the demand of motorcycle product being carried out pattern certification test and conformity of production check test, is the indispensable specialized equipment that the motor exhaust pollutant was detected and analyzed in motorcycle manufacturing enterprise, related scientific research department, motorcycle testing agency.
Claims (4)
1. a motor exhaust contaminant measurement device is characterized in that, diluted exhaust constant volume samapling unit, analytical instrument unit link to each other successively, and the central computer control module is connected with above-mentioned Unit two respectively; Described diluted exhaust constant volume samapling unit is by background air-filtering and motor exhaust dilution process cabinet, the diluted exhaust constant volume flows and presses operating condition method continuous sampling switch board and sample gas reservoir bag, centrifugal blower and connecting line are formed, described diluted exhaust constant volume flows and is provided with air constant-volume sampling system by operating condition method continuous sampling switch board, diluted exhaust constant volume potpourri sampling system, described air constant-volume sampling system is disposed with filter cleaner, pump, the flowmeter of band flowrate control valve, the pipeline of operation valve links to each other with the air sampling gas pouch, and described diluted exhaust constant volume potpourri sampling system is disposed with filter cleaner, pump, the flowmeter of band flowrate control valve, the pipeline of operation valve links to each other with exhaust mixture sample gas bag; Described analytical instrument unit is made up of carbonyl analyzer, capnograph, hydrocarbon measuring instrument, nitrogen-oxide analyzer, and oxygen analyser; Central computer unit is made of slave computer control program, programmable controller, pc control procedure.
2. motor exhaust contaminant measurement device according to claim 1 is characterized in that, described central computer unit adopts built-in touch to shield the distributed Distributed Control System (DCS) that runs on the analytical instrument.
3. motor exhaust contaminant measurement device according to claim 1 is characterized in that, described analytical instrument unit is arranged in same 19 cun standard meter cabinets.
4. motor exhaust contaminant measurement device according to claim 4 is characterized in that, both sides are trough behind the described standard meter cabinet, and circuits, gas circuit are buried and be put in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029056 CN2736776Y (en) | 2004-05-28 | 2004-05-28 | Motorcycle exhaustion contaminant measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029056 CN2736776Y (en) | 2004-05-28 | 2004-05-28 | Motorcycle exhaustion contaminant measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2736776Y true CN2736776Y (en) | 2005-10-26 |
Family
ID=35307511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420029056 Expired - Fee Related CN2736776Y (en) | 2004-05-28 | 2004-05-28 | Motorcycle exhaustion contaminant measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2736776Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435827B (en) * | 2008-11-11 | 2011-10-12 | 天津世纪动力科技发展有限公司 | Exhaust pollutants measuring apparatus of heavy type diesel vehicle |
| CN104380077A (en) * | 2012-05-29 | 2015-02-25 | Avl测试系统公司 | Intelligent bag filling for exhaust sampling system |
-
2004
- 2004-05-28 CN CN 200420029056 patent/CN2736776Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435827B (en) * | 2008-11-11 | 2011-10-12 | 天津世纪动力科技发展有限公司 | Exhaust pollutants measuring apparatus of heavy type diesel vehicle |
| CN104380077A (en) * | 2012-05-29 | 2015-02-25 | Avl测试系统公司 | Intelligent bag filling for exhaust sampling system |
| CN104380077B (en) * | 2012-05-29 | 2018-03-27 | Avl测试系统公司 | Intelligent bag for exhaust gas sampling system is filled |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051026 Termination date: 20100528 |