CN220153795U - Gas pressure measuring device for sampling pipeline of automobile exhaust analyzer - Google Patents
Gas pressure measuring device for sampling pipeline of automobile exhaust analyzer Download PDFInfo
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- CN220153795U CN220153795U CN202321232124.3U CN202321232124U CN220153795U CN 220153795 U CN220153795 U CN 220153795U CN 202321232124 U CN202321232124 U CN 202321232124U CN 220153795 U CN220153795 U CN 220153795U
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- 238000005070 sampling Methods 0.000 title claims abstract description 49
- 238000012544 monitoring process Methods 0.000 claims abstract description 37
- 238000004891 communication Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 13
- 238000009530 blood pressure measurement Methods 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 46
- 238000007689 inspection Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas pressure measuring device of a sampling pipeline of an automobile exhaust analyzer, which comprises a CPU microcontroller, a power module, a data measuring module, a data recording module, a data calibrating module, a data monitoring module, a data display module and a data communication module, and is suitable for being installed and used in any sampling analyzer.
Description
Technical Field
The utility model relates to the technical field of pressure measurement, in particular to a gas pressure measuring device of a sampling pipeline of an automobile exhaust analyzer.
Background
Referring to R-routine inspection of an exhaust gas tester used by an ASM method in GB18285-2018 (double idle method and simple working condition method) for limiting emission of pollutants of gasoline vehicles, starting up the tester according to specifications, preheating the tester, plugging an inlet of a sampling probe by a rubber plug for leakage inspection, and adopting standard gas for inspection after the leakage inspection passes. Firstly, introducing zero gas, zeroing the tester, then introducing high-concentration standard gas, performing halation point inspection on various gases of the tester, finally, introducing low-concentration standard gas, automatically inspecting output readings by an analyzer, and determining whether the readings meet accuracy requirements. The method is complex in operation and inconvenient for daily detection of the air tightness of the analyzer.
At present, the analyzer lacks the measurement to the gas pressure in the sampling pipeline, and when the sampling pipeline is blocked, the gas pressure in the sampling pipeline can be made to become low, and the sample gas can not smoothly enter the sampling pipeline, lacks the measurement and the monitoring to the gas pressure in the sampling pipeline, and can cause inaccurate measured sample gas data.
The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to provide a gas pressure measuring device for a sampling pipeline of an automobile exhaust analyzer, which can solve the problems that an operation method for checking the automobile exhaust analyzer is complex and the sampling pipeline cannot be found out in time due to lack of gas pressure measurement of the sampling pipeline.
In order to achieve the above purpose, the utility model provides a sampling pipeline gas pressure measuring device of an automobile exhaust analyzer, which comprises a shell, a CPU microcontroller, and a power module, a data measuring module, a data recording module, a data calibrating module, a data monitoring module, a data display module and a data communication module which are connected with the CPU microcontroller; the shell is provided with an air inlet which is connected with the data measurement module, and the data measurement module comprises a pressure sensor which is used for measuring the measured pressure value of the gas in the sampling pipeline and obtaining a voltage signal which is then sent to the CPU microcontroller; the data recording module is used for recording and storing the measured pressure value and clearing the record after receiving the measured pressure value sent by the CPU microcontroller; the data calibration module is used for inputting standard pressure values so as to calibrate the pressure sensor through the CPU microcontroller; the data monitoring module is used for inputting a monitoring pressure value and sending the monitoring pressure value to the CPU microcontroller so that the CPU microcontroller compares the monitoring pressure value with the measured pressure value; the data display module is used for providing data display and functional operation display; the CPU microcontroller is connected with the computer through the data communication module and is used for controlling and reading data of the sampling pipeline gas pressure measuring device of the automobile exhaust analyzer by the computer.
Further, a power switch connected with the power module is arranged on the shell.
Preferably, the data measurement module further comprises a voltage frequency converter and a signal amplifier which are sequentially connected with the pressure sensor, wherein the signal amplifier is used for amplifying a voltage signal output by the pressure sensor; the voltage frequency converter is used for adjusting the acquisition frequency of the voltage signal output by the pressure sensor.
Preferably, the data recording module is composed of eight digital recording keys and one clearing key, and the eight digital recording keys and the one clearing key are arranged on the shell.
Preferably, the data calibration module includes a calibration function key, and the calibration function key is disposed on the housing.
Preferably, the data monitoring module comprises a monitoring function key, an indicator light, a buzzer, a direction key and a confirmation key, wherein the monitoring function key, the direction key and the confirmation key are used for inputting a monitoring pressure value, the indicator light and the buzzer are used for receiving alarm information generated when the CPU microcontroller compares that the measuring pressure value is lower than the monitoring pressure value, and the indicator light and the buzzer are arranged on the shell.
Preferably, the data display module is composed of a display screen, and the display screen is mounted on the housing.
Further, the system also comprises a reset circuit connected with the CPU microcontroller and used for enabling the circuit of the sampling pipeline gas pressure measuring device of the automobile exhaust analyzer to be restored to the initial state.
Compared with the prior art, the gas pressure measuring device for the sampling pipeline of the automobile exhaust analyzer has the following beneficial effects:
the gas pressure measuring, calibrating and monitoring device is suitable for being installed and used in any sampling analyzer, the structure can be properly adjusted and fused into the original analyzer structure, the gas pressure measuring, calibrating and monitoring functions are finally realized, the operation of the automobile exhaust analyzer is simple, and the gas pressure of a sampling pipeline can be measured in time so as to find the problem of blockage of the sampling pipeline in time.
Drawings
FIG. 1 is a schematic block diagram of a sampling line gas pressure measurement device for an automotive exhaust gas analyzer according to one embodiment of the utility model.
Fig. 2 is an elevation view of a sampling line gas pressure measurement device for an automotive exhaust gas analyzer in accordance with an embodiment of the present utility model.
Fig. 3 is a right side view of fig. 2.
The main reference numerals illustrate:
1-shell, 11-air inlet, 2-CPU microcontroller, 3-power module, 31-switch, 41-pressure sensor, 42-voltage frequency converter, 43-signal amplifier, 5-data record module, 51-digit record button, 52-clear button, 6-data calibration module, 61-calibration function button, 7-data monitor module, 71-monitor function button, 72-direction button, 73-confirm button, 74-pilot lamp, 75-buzzer, 8-data display module, 81-display screen, 9-data communication module, 91-RS232 communication interface, 10-reset circuit.
Detailed Description
The following detailed description of embodiments of the utility model is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the utility model is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
The gas pressure measuring device for the sampling pipeline of the automobile exhaust analyzer according to one embodiment of the utility model comprises a CPU (Central processing Unit) microcontroller 2, a power supply module 3, a data measuring module, a data recording module 5, a data calibrating module 6, a data monitoring module 7, a data display module 8 and a data communication module 9, is suitable for being installed and used in any sampling analyzer, can be properly adjusted in structure, is fused into the original analyzer structure, and finally realizes the functions of gas pressure measurement, calibration and monitoring of the device.
As shown in fig. 1 to 2, the sampling line gas pressure measuring device of the automobile exhaust gas analyzer includes: the shell 1 is provided with a power switch 31 connected with the power module 3, the power switch 31 is used for controlling the power module 3 to provide direct current power for driving each module, and the electric energy of the power module 3 can be provided by a battery pack or an external power supply.
An air inlet 11 is arranged on the shell 1, the air inlet 11 is connected with the data measurement module through a tee joint, and gas is introduced into the data measurement module so as to measure the gas pressure of the sampling pipeline.
The data measurement module comprises a pressure sensor 41, a voltage frequency converter 42 and a signal amplifier 43 which are sequentially connected with the pressure sensor 41, wherein gas is introduced into the pressure sensor 41, the gas pressure value in a sampling pipeline can be measured to obtain a voltage signal, the pressure sensor 41 transmits the voltage signal to the signal amplifier 43, the signal amplifier 43 realizes the amplification function of the voltage signal output by the pressure sensor 41, and the amplified voltage signal is transmitted to the CPU microcontroller 2; the voltage frequency converter 42 is used for adjusting the acquisition frequency of the voltage signal output by the pressure sensor 41.
The CPU microcontroller 2 is a control core of the sampling pipeline gas pressure measuring device of the automobile exhaust analyzer, is connected with each module and is used for program editing and instruction interaction and control among the modules. The CPU microcontroller 2 receives the amplified voltage signal sent by the data measurement module.
The data recording module 5 is connected with the CPU micro controller 2, receives the pressure value sent by the CPU micro controller 2, consists of eight digital recording keys 51 and a cleaning key 52, and is used for recording the multi-point gas pressure value, the gas pressure value in the sampling pipeline measured by the stored data measuring module and cleaning the record. Eight number recording keys 51 and one clear key 52 are provided on the housing 1.
The data calibration module 6 is communicated with the CPU microcontroller 2 and comprises a calibration function key 61 for inputting standard pressure values, and the CPU microcontroller 2 is used for calibrating the pressure sensor 41. The calibration function key 61 is mounted on the housing 1.
The data monitoring module 7 is communicated with the CPU microcontroller 2, the data monitoring module 7 comprises a monitoring function key 71, an indicator lamp 74, a buzzer 75, a direction key 72 and a confirmation key 73, the monitoring function key 71, the direction key 72 and the confirmation key 73 are used for inputting monitoring pressure values, the CPU microcontroller 2 receives the monitoring pressure values, the CPU microcontroller 2 compares the monitoring pressure values with the measured pressure values of the gas in the sampling pipeline measured by the pressure sensor 41, when the measured pressure values are lower than the monitoring pressure values, the CPU microcontroller 2 sends alarm information to the buzzer 75 and the indicator lamp 74 of the data monitoring module 7, the indicator lamp 74 is changed from normal lighting to flashing, the buzzer 75 emits sound, and the pressure monitoring alarm function is achieved. A buzzer 75 and an indicator lamp 74 are mounted on the housing 1.
The data display module 8 is composed of a display screen 81, is communicated with the CPU microcontroller 2, and is used for providing data display and assisting in matching the functional operation of each module. A display screen 81 is mounted on the housing 1.
The data communication module 9 is communicated with the CPU microcontroller 2, the data communication module 9 comprises an RS232 communication interface 91, the data communication module 9 is connected with a computer through the RS232 communication interface 91 and a data line, and the computer is communicated with the CPU microcontroller 2 through the data communication module 9, so that the control and data reading of the sampling pipeline gas pressure measuring device of the automobile exhaust analyzer by the computer are realized.
The gas pressure measuring device of the sampling pipeline of the automobile exhaust analyzer can be connected into the sampling pipeline of the automobile exhaust analyzer to measure and monitor the gas pressure value in the sampling pipeline in real time, and the gas tightness of the closed sampling pipeline is checked.
The device is suitable for being installed and used in any sampling analyzer, the structure of the device can be properly adjusted and fused into the original analyzer structure, and the functions of measuring, calibrating and monitoring the gas pressure of the device are finally realized.
The device for measuring the gas pressure of the sampling pipeline of the automobile exhaust analyzer further comprises a reset circuit 10 connected with the CPU microcontroller 2, and the reset circuit is used for enabling the device circuit to be restored to the initial state so as to return to the initial state, and the gas pressure measurement of the sampling pipeline of the automobile exhaust analyzer is performed again.
The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (8)
1. The device is characterized by comprising a shell, a CPU microcontroller, a power module, a data measurement module, a data recording module, a data calibration module, a data monitoring module, a data display module and a data communication module, wherein the power module, the data measurement module, the data recording module, the data calibration module, the data monitoring module, the data display module and the data communication module are connected with the CPU microcontroller; the shell is provided with an air inlet which is connected with the data measurement module, and the data measurement module comprises a pressure sensor which is used for measuring the measured pressure value of the gas in the sampling pipeline and obtaining a voltage signal which is then sent to the CPU microcontroller; the data recording module is used for recording and storing the measured pressure value and clearing the record after receiving the measured pressure value sent by the CPU microcontroller; the data calibration module is used for inputting standard pressure values so as to calibrate the pressure sensor through the CPU microcontroller; the data monitoring module is used for inputting a monitoring pressure value and sending the monitoring pressure value to the CPU microcontroller so that the CPU microcontroller compares the monitoring pressure value with the measured pressure value; the data display module is used for providing data display and functional operation display; the CPU microcontroller is connected with the computer through the data communication module and is used for controlling and reading data of the sampling pipeline gas pressure measuring device of the automobile exhaust analyzer by the computer.
2. The gas pressure measuring device for the sampling pipeline of the automobile exhaust analyzer according to claim 1, wherein a power switch connected with the power module is arranged on the shell.
3. The gas pressure measuring device of the sampling pipeline of the automobile exhaust analyzer according to claim 1, wherein the data measuring module further comprises a voltage frequency converter and a signal amplifier which are sequentially connected with the pressure sensor, and the signal amplifier is used for amplifying a voltage signal output by the pressure sensor; the voltage frequency converter is used for adjusting the acquisition frequency of the voltage signal output by the pressure sensor.
4. The device for measuring the gas pressure in the sampling pipeline of the automobile exhaust analyzer according to claim 1, wherein the data recording module is composed of eight digital recording keys and one cleaning key, and the eight digital recording keys and the one cleaning key are arranged on the shell.
5. The vehicle exhaust analyzer sampling line gas pressure measurement device of claim 1, wherein the data calibration module includes a calibration function key disposed on the housing.
6. The device for measuring the gas pressure in the sampling pipeline of the automobile exhaust analyzer according to claim 1, wherein the data monitoring module comprises a monitoring function key, an indicator light, a buzzer, a direction key and a confirmation key, wherein the monitoring function key, the direction key and the confirmation key are used for inputting a monitoring pressure value, the indicator light and the buzzer are used for receiving alarm information generated when the measured pressure value is lower than the monitoring pressure value by the CPU microcontroller, and the indicator light and the buzzer are arranged on the shell.
7. The apparatus of claim 1, wherein the data display module comprises a display screen mounted to the housing.
8. The vehicle exhaust analyzer sampling line gas pressure measurement device of claim 1, further comprising a reset circuit coupled to the CPU microcontroller for resetting the vehicle exhaust analyzer sampling line gas pressure measurement device circuit to an initial state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321232124.3U CN220153795U (en) | 2023-05-18 | 2023-05-18 | Gas pressure measuring device for sampling pipeline of automobile exhaust analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321232124.3U CN220153795U (en) | 2023-05-18 | 2023-05-18 | Gas pressure measuring device for sampling pipeline of automobile exhaust analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220153795U true CN220153795U (en) | 2023-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321232124.3U Active CN220153795U (en) | 2023-05-18 | 2023-05-18 | Gas pressure measuring device for sampling pipeline of automobile exhaust analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220153795U (en) |
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2023
- 2023-05-18 CN CN202321232124.3U patent/CN220153795U/en active Active
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