CN2629043Y - Discharge air analyser - Google Patents
Discharge air analyser Download PDFInfo
- Publication number
- CN2629043Y CN2629043Y CN 03263381 CN03263381U CN2629043Y CN 2629043 Y CN2629043 Y CN 2629043Y CN 03263381 CN03263381 CN 03263381 CN 03263381 U CN03263381 U CN 03263381U CN 2629043 Y CN2629043 Y CN 2629043Y
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- China
- Prior art keywords
- gas
- pump
- exhaust gas
- air
- sensor
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Abstract
The utility model directs to an exhaust gas analyzer consisting of a gas pipeline system and an electric circuit system. The gas pipeline system is composed of a separator, a gas packed bed filter, a water packed bed filter, a three-way solenoid and a double-head pump (a water pump and a gas pump). The separator is respectively connected with the gas packed bed filter and the water packed bed filter. The gas packed bed filter is connected with an inlet opening (1) of the three-way solenoid and the water packed bed filter is connected with an inlet opening (2) of the double-head pump(the water pump). The exhaust gas analyzer designs the reliable gas pump and a filtration system, not only has a small volume, but also can avoid the sensor pollution resulting in the long-term use.
Description
Technical field
The utility model relates to a kind of exhaust gas analyzer, particularly a kind of portable, liquid crystal display, the exhaust gas analyzer that automaticity is high.
Background technology
Exhaust gas analyzer is the instrumentation that is used for all cpds content of measuring machine motor-car discharging waste gas for automobile making, repairing, environmental protection and vehicle supervision department's development.By this instrument, can carry out express-analysis to various model motor car engine discharging waste gas, thereby reach the purpose of monitoring automobile emission.
Domestic the most widely used exhaust gas analyzer is non-diffused infrared-type exhaust gas analyzer at present.This instrument mainly is made of sampler, analytical equipment, concentration indicating device and calibrating installation.Sampler is made up of sampling probe, filter cleaner, conduit, separator and air pump, and effect sucks waste gas exactly from the gas outlet of automobile, filter dust and moisture is sent to analytical equipment; Analytical equipment by infrared light supply, measure air chamber, standard air chamber, cut electro-optical device and sensing chamber forms, utilize different tested gas that the infrared ray of different wave length is had different absorption characteristics, measure the infrared ray of gas with various use different wave length; This variation is converted to the electric current variation represents, just constituted the gas concentration indicating device with instrument.
But existing exhaust gas analyzer volume is big, and display mode falls behind (pointer or LED charactron), has only measuring ability, does not analyze and help function, uses inconvenient.
Summary of the invention
At the defective of above-mentioned prior art, the purpose of this utility model is to provide a kind of exhaust gas analyzer, and it adopts reliable air pump, filtering system design, and not only volume is little, and can avoid the long-term pollution that causes sensor of using.
Another purpose of the present utility model is to provide a kind of exhaust gas analyzer, and it adopts LCD display, can clear demonstration Chinese character, and figure etc.
Another purpose of the present utility model is to provide a kind of exhaust gas analyzer, and it has automatic zero set (AZS), functions such as automatic air pressure, temperature variation compensation, automaticity height.
To achieve these goals, the utility model provides a kind of exhaust gas analyzer, comprise an air-channel system and a Circuits System, described air-channel system comprises separation vessel, gas cleaner, water filler, bull pump (air pump and water pump), this separation vessel connects gas cleaner and water filler respectively, gas cleaner connects the inlet (1) of three-way solenoid valve, and water filler connects the inlet of water pump bull pump.
Described exhaust gas analyzer, wherein, described gas cleaner is the filter paper filter cleaner, and described air-channel system also comprises a three-way solenoid valve, and it is connected between filter paper filter cleaner and the air pump bull pump.
Described exhaust gas analyzer, wherein, described air-channel system also comprises first gas outlet, second gas outlet, freeing port, vacuum switch, three gas sensors, oxygen sensor, NO
xSensor, pressure breathing valve, pressure air-stopping valve and carbon filter cleaner, the outlet of this bull pump (water pump) connects a freeing port, three-way solenoid valve inlet (2) connects pressure breathing valve and pressure air-stopping valve, the pressure air-stopping valve is connected with the carbon filter cleaner, the three-way solenoid valve outlet also connects vacuum switch, the inlet of bull pump (air pump), the outlet of bull pump (air pump) is connected with three gas sensors, one port, and this three gas sensor also connects oxygen sensor and NO
xSensor, this NO
xSensor also is connected with second gas outlet with first gas outlet respectively with oxygen sensor.
Described exhaust gas analyzer, wherein, described Circuits System comprises a control main board, power panel and keyboard change-over panel, this control main board is connected with power panel, keyboard change-over panel and the communication of three gas sensors difference.
Described exhaust gas analyzer, wherein, described Circuits System comprises a LCDs that is connected with control main board, described control main board is the PC/104 mainboard.
Described exhaust gas analyzer, wherein, described power panel and three-way solenoid valve, vacuum switch, bull pump and three gas sensors electrically connect.
Described exhaust gas analyzer, wherein, described carbon filter cleaner is a charcoal filter.
Described exhaust gas analyzer, wherein, described Circuits System also comprises one rotating speed/Temperature Treatment plate, temperature sensor and speed probe, this rotating speed/Temperature Treatment plate and temperature sensor and speed probe are electrically connected respectively.
Described exhaust gas analyzer, wherein, this rotating speed/Temperature Treatment plate and three gas sensors are electrically connected.
Brief description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
In the accompanying drawing,
Fig. 1 is the stereographic map of the exhaust gas analyzer of the utility model one preferred embodiment;
Fig. 2 is the back plate structure figure of the exhaust gas analyzer of the utility model one preferred embodiment;
Fig. 3 is the pneumatic diagram of the utility model one preferred embodiment;
Fig. 4 is the circuit connection diagram of the utility model one preferred embodiment.
Embodiment
Now the utility model is further specified with a preferred embodiment.See also Fig. 1 and Fig. 2, the utility model exhaust gas analyzer comprises a panel 30, a back plate 40, a base plate 50 and a loam cake 60.This panel 30 is provided with LCD display 17, can clear demonstration Chinese character, and figure etc.This back plate 40 is provided with exhaust gas entrance 27, separation vessel 1, filter paper filter cleaner 2, acticarbon filter cleaner 13, water filler 9, first gas outlet 25, second gas outlet 26, freeing port 24, parallel port 22 and power switch etc.This base plate 50 is in order to support each parts of the utility model, and this loam cake 60 is in order to each parts of protection the utility model.Compact conformation of the present utility model, most of assembly are all hidden in the enclosure and are protected.
The utility model exhaust gas analyzer comprises an air-channel system and a circuit control system.See also Fig. 3, it is the air-channel system figure of the utility model exhaust gas analyzer one preferred embodiment, and separation vessel 1 connects filter paper filter cleaner 2, and filter paper filter cleaner 2 is connected with first port of three-way solenoid valve 3 again.Separation vessel 1 also connects the inlet of water filler 9, the outlet of water filler 9 connects the inlet of bull pump (water pump) 10, the outlet of bull pump (water pump) 10 connects a freeing port 24, wherein this separation vessel 1 is used to carry out the filtration of aqueous vapor separation and large granular impurity, this water filler 9 is used for the impurity in the moisture that filter separator flows out, this bull pump (water pump) 10 be used for extracting divide dried up.Second port of three-way solenoid valve 3 connects pressure breathing valve 11 and pressure air-stopping valve 12 simultaneously, and wherein pressure breathing valve 11 is standard gas inlet, and pressure air-stopping valve 12 is nature gas (air) inlet (unidirectional), in order to cut off air when standard gas is imported; Pressure air-stopping valve 12 also connects a carbon filter cleaner 13, and this carbon filter cleaner 13 is used for the impurity of filtered air.The 3rd port of three-way solenoid valve 3 connects the inlet of vacuum switch 4 and bull pump (air pump) 5 simultaneously, and the outlet of bull pump (air pump) 5 connects three gas sensors, 6 one ports, and other port of this three gas sensor 6 connects oxygen sensor 7 and NO more simultaneously
xSensor 8, oxygen sensor 7 and NO
xSensor 8 is connected with first gas outlet 25 with second gas outlet 26 respectively.
Gas flow shown in arrow among Fig. 3, waste gas to be measured enters into separation vessel 1 by exhaust gas entrance 27, carrying out aqueous vapor via separation vessel 1 separates, the moisture of wherein separating at first flows to water filler 9, flow to bull pump (water pump) 10 behind the impurity in the moisture that in water filler 9, flows out in the filter separator 1 again, it is dried up to extract branch by bull pump (water pump) 10 at last, discharges by freeing port 24; The gas of separating then at first flows to filter paper filter cleaner 2, by filter paper filter cleaner 2 filtering exhaust particulates and other impurity, through the waste gas after filtering from the 3rd port flow of three-way solenoid valve 3 to bull pump (air pump) 5, outlet by bull pump (air pump) 5 flows to three gas sensors 6 then, enters oxygen sensor 7 and NO at last
xSensor 8 detects, and discharges from second gas outlet 26 and first gas outlet 25.Standard gas then enters from three-way solenoid valve 3 second ports via a pressure breathing valve 11, and flows out from the 3rd port, enters into air pump bull pump 5, three gas sensors 6, oxygen sensor 7 and NO again
xSensor 8 detects, and discharges from second gas outlet 26 and first gas outlet 25.After then filtering by 13 pairs of airborne impurity of a carbon filter cleaner (active carbon filter) earlier, nature gas enters from three-way solenoid valve 3 second ports by a pressure air-stopping valve 12 again, and, enter into bull pump (air pump) 5, three gas sensors 6, oxygen sensor 7 and NO again from the outflow of the 3rd port
xSensor 8 detects, and discharges from second gas outlet 26 and first gas outlet 25.Three-way solenoid valve 3 is used for switching above-mentioned filtered waste gas, standard gas and air; 5 of bull pumps (air pump) are sampled and are got gas switching gained gas; The sample gas that extracts enters three gas sensors 6 and oxygen sensor 7 and NO successively
xSensor 8 detects, and discharges from second gas outlet 26 and first gas outlet 25, thereby finishes the analytical work of waste gas.In addition, vacuum switch 4 is used for carrying out the inspection of gas-path leakage or obstruction.This carbon filter cleaner 13 can be active carbon filter.
Gas circuit design by as shown in Figure 3 makes that not only the utility model exhaust gas analyzer volume is little, and can avoid the long-term pollution that causes sensor of using.
See also Fig. 4, be the circuit system figure of the utility model exhaust gas analyzer one preferred embodiment.This Circuits System can cooperate the air-channel system of Fig. 3 to carry out work.Among Fig. 4, speed probe 21, temperature sensor 20 are connected with rotating speed/Temperature Treatment plate 19 communications respectively, and rotating speed/Temperature Treatment plate 19 is connected with three gas sensor 6 (AMB) communications again.Power panel 14 and electric connections such as bull pump 5,10, three-way solenoid valve 3, vacuum switch 4, three gas sensors 6.In the utility model one preferred embodiment, PC/104 mainboard 15 is accepted the signal that transmits by keyboard card extender 16 from three gas sensors 6 and keyboard 18, and then control the duty of bull pump 5,10, three-way solenoid valve 3, vacuum switch 4, three gas sensors 6 etc. by control power panel 14, show various duties and waste-gas analysis data etc. by the LCD display 17 that PC/104 mainboard 15 connected simultaneously.In addition, PC/104 mainboard 15 also can have serial port, parallel port 22 (see figure 2)s etc., thus carry out online with PC, printer etc.By the sort circuit design, can make this instrument liquid crystal display testing result, simultaneously, instrument also has automatic zero set (AZS), functions such as automatic air pressure, temperature variation compensation.
By adopting LCD display, small-sized gas path component, integrated transducer, PC/104 mainboard and air pump, filtering system design reliably, the utility model has realized that not only volume is little, portable purpose, and can avoid the long-term pollution that causes sensor of using, all right clear demonstration Chinese character, figure etc.The utility model also has automatic zero set (AZS), functions such as automatic air pressure, temperature variation compensation, automaticity height.
Be understandable that; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (9)
1, a kind of exhaust gas analyzer, comprise an air-channel system and a Circuits System, it is characterized in that, described air-channel system comprises separation vessel, gas cleaner, water filler, bull pump (air pump and water pump), this separation vessel connects gas cleaner and water filler respectively, gas cleaner connects the inlet (1) of three-way solenoid valve, and water filler connects the inlet of bull pump (water pump).
2, exhaust gas analyzer according to claim 1 is characterized in that, described gas cleaner is the filter paper filter cleaner, and described air-channel system also comprises a three-way solenoid valve, and it is connected between filter paper filter cleaner and the bull pump (air pump).
3, exhaust gas analyzer according to claim 2 is characterized in that, described air-channel system also comprises first gas outlet, second gas outlet, freeing port, vacuum switch, three gas sensors, oxygen sensor, NO
xSensor, pressure breathing valve, pressure air-stopping valve and carbon filter cleaner, the outlet of this bull pump (water pump) connects a freeing port, three-way solenoid valve inlet (2) connects pressure breathing valve and pressure air-stopping valve, the pressure air-stopping valve is connected with the carbon filter cleaner, the three-way solenoid valve outlet also connects vacuum switch, the inlet of bull pump (air pump), the outlet of bull pump (air pump) is connected with three gas sensors, one port, and this three gas sensor also connects oxygen sensor and NO
xSensor, this NO
xSensor also is connected with second gas outlet with first gas outlet respectively with oxygen sensor.
4, exhaust gas analyzer according to claim 3 is characterized in that, described Circuits System comprises a control main board, power panel and keyboard change-over panel, and this control main board is connected with power panel, keyboard change-over panel and the communication of three gas sensors difference.
5, exhaust gas analyzer according to claim 4 is characterized in that, described Circuits System comprises a LCDs that is connected with control main board, and described control main board is the PC/104 mainboard.
6, exhaust gas analyzer according to claim 5 is characterized in that, described power panel and three-way solenoid valve, vacuum switch, bull pump and three gas sensors electrically connect.
7, exhaust gas analyzer according to claim 3 is characterized in that, described carbon filter cleaner is a charcoal filter.
8, exhaust gas analyzer according to claim 6 is characterized in that, described Circuits System also comprises one rotating speed/Temperature Treatment plate, temperature sensor and speed probe, and this rotating speed/Temperature Treatment plate is connected with temperature sensor and the communication of speed probe difference.
9, exhaust gas analyzer according to claim 8 is characterized in that, this rotating speed/Temperature Treatment plate is connected with three gas sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03263381 CN2629043Y (en) | 2003-06-06 | 2003-06-06 | Discharge air analyser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03263381 CN2629043Y (en) | 2003-06-06 | 2003-06-06 | Discharge air analyser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2629043Y true CN2629043Y (en) | 2004-07-28 |
Family
ID=34255676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03263381 Expired - Fee Related CN2629043Y (en) | 2003-06-06 | 2003-06-06 | Discharge air analyser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2629043Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017143475A1 (en) * | 2016-02-22 | 2017-08-31 | 深圳市元征科技股份有限公司 | System for monitoring air quality inside automobile |
| CN111912788A (en) * | 2020-06-18 | 2020-11-10 | 深圳市安车检测股份有限公司 | Gas circuit system of exhaust gas analyzer |
-
2003
- 2003-06-06 CN CN 03263381 patent/CN2629043Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017143475A1 (en) * | 2016-02-22 | 2017-08-31 | 深圳市元征科技股份有限公司 | System for monitoring air quality inside automobile |
| CN111912788A (en) * | 2020-06-18 | 2020-11-10 | 深圳市安车检测股份有限公司 | Gas circuit system of exhaust gas analyzer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |