CN115236147B - Gas content monitoring device for automobile exhaust and use method - Google Patents
Gas content monitoring device for automobile exhaust and use method Download PDFInfo
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- CN115236147B CN115236147B CN202210749890.0A CN202210749890A CN115236147B CN 115236147 B CN115236147 B CN 115236147B CN 202210749890 A CN202210749890 A CN 202210749890A CN 115236147 B CN115236147 B CN 115236147B
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000012806 monitoring device Methods 0.000 title claims abstract description 22
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 25
- 239000011593 sulfur Substances 0.000 claims abstract description 25
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 13
- 230000002452 interceptive effect Effects 0.000 claims abstract description 4
- 239000003570 air Substances 0.000 claims description 66
- 238000004891 communication Methods 0.000 claims description 29
- 239000012855 volatile organic compound Substances 0.000 claims description 16
- 238000004458 analytical method Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 12
- 239000012080 ambient air Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 111
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 62
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 16
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 7
- 238000004590 computer program Methods 0.000 description 7
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 4
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- 239000003209 petroleum derivative Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 2
- 230000006870 function Effects 0.000 description 2
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- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
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- 238000005260 corrosion Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
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- 239000003502 gasoline Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Engineering & Computer Science (AREA)
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- Exhaust Gas After Treatment (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application provides a gas content monitoring device for automobile exhaust and a use method thereof, wherein the device comprises the following components: the box body is connected with an air inlet pipe and an air outlet pipe, and the air inlet pipe is used for conveying input gas to the plasma processor; the plasma processor is arranged in the box body and connected with the air inlet pipe through an air pump, and is used for processing the input gas to obtain processed gas, and the processed gas fills the box body through a pipeline; an electrochemical sensor disposed within the cartridge, the electrochemical sensor including a sensor for measuring sulfur content and other interfering gas sensors; the sensor for measuring sulfur content comprises SO 2 Sensor and H 2 S sensor; by the method, the sulfur content of the automobile exhaust can be detected.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a gas content monitoring device for automobile exhaust and a use method thereof.
Background
Some crude oils are high sulfur crude oils, and the sulfur content in petroleum products obtained from high sulfur crude oils is easily high, especially in diesel and gasoline. The high sulfur fuel oil is cheaper, and the desulfurization requires additional cost and process, if the automobile uses the high sulfur fuel oil, sulfides such as sulfur dioxide, hydrogen sulfide and the like generated during combustion of the high sulfur fuel oil belong to atmospheric pollutants and pollute the environment. In order to effectively control the flow of high-sulfur petroleum products into the market, how to monitor the sulfur content in the high-sulfur petroleum products on line is a problem to be solved.
Disclosure of Invention
The application provides a gas content monitoring device for automobile exhaust and a use method thereof, which are used for at least solving the technical problems in the prior art.
According to a first aspect of an embodiment of the present application, there is provided a gas content monitoring device for automobile exhaust, the device including: the box body is connected with an air inlet pipe and an air outlet pipe, and the air inlet pipe is used for conveying gas to the plasma processor; the plasma processor is arranged in the box body and connected with the air inlet pipe through an air pump, and is used for processing the input gas to obtain processed gas, and the processed gas fills the box body through a pipeline; the electrochemical sensor is arranged in the box body to detect the concentration of the treated gas, and comprises a sensor for measuring the sulfur content and other interference gas sensors; the sensor for measuring sulfur content comprises SO 2 Sensor and H 2 S sensor.
In one embodiment, the other interfering gas sensor comprises NO 2 Sensors, NO sensors, and CO sensors.
In one embodiment, the plasma processor includes a first line for connecting to an air pump and a second line for delivering a portion of the treated gas into the cassette; and a third pipeline is further connected between the first pipeline and the second pipeline and is used for conveying a part of treated gas to the first pipeline.
In an embodiment, a flow blocking plate is disposed in the first pipeline, and the flow blocking plate is connected to a communication port between the first pipeline and the third pipeline, so as to block the input gas from flowing into the third pipeline from the first pipeline.
In an embodiment, a baffle is disposed in the second pipeline, and the baffle is connected to a communication port between the second pipeline and the third pipeline, so as to guide the treated gas to flow from the second pipeline into the third pipeline.
In an embodiment, a temperature sensor is further disposed in the case to detect the temperature inside the case.
According to a second aspect of the embodiment of the present application, there is provided a method for using the gas content monitoring device, the method comprising: connecting an air inlet pipe with an automobile exhaust emission port, starting an air pump, and sucking the automobile exhaust into the box body; decomposing volatile organic compounds in the automobile exhaust through a plasma processor to obtain treated automobile exhaust; and under the condition that the treated automobile exhaust is full of the box body, detecting and analyzing the concentration of the gas component of the treated automobile exhaust through an electrochemical sensor, and determining the concentration of the gas component in the automobile exhaust.
In one embodiment, after determining the concentration of the gas component in the automobile exhaust, the method further comprises: separating an air inlet pipe from the automobile exhaust emission port, starting an air pump, and sucking ambient air into the box body; and the treated automobile tail gas in the box body is discharged through an exhaust pipe by the ambient air.
In an embodiment, the detecting and analyzing the concentration of the gas component of the treated automobile exhaust by using an electrochemical sensor to determine the concentration of the gas component in the automobile exhaust includes: determination of SO in automobile exhaust by means of corresponding electrochemical sensor 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 Reading the concentration; based on a preset gas cross influence table, the SO 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 The read concentration is analyzed to determine SO 2 True concentration, H 2 S true concentration, CO true concentration, NO true concentration, and NO 2 True concentrationDegree.
In one embodiment, the SO is based on a predetermined gas cross-influence table 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 The read concentration is analyzed to determine SO 2 True concentration, H 2 S true concentration, CO true concentration, NO true concentration, and NO 2 True concentration, comprising: determining a set of analysis formulas based on the gas cross-influence table, the set of analysis formulas being as follows:
X+(1.4/250)Y+(2.8/90)Z+(3.4/100)U+(1.8/200)V＝a
(-0.2/100)X+Y+(0.5/90)Z+(0.2/100)U+(0.4/200)V＝b
(-3.2/250)Y+Z+(19.9/200)V＝c
(4.7/500)X+(-2/250)Y+(-84/90)Z+U+(-0.7/200)V＝m
(3/100)X+(-1/50)Y+(1/10)Z+(1/10)U+V＝n
wherein U is used for representing the real concentration of SO2, and V is used for representing H 2 S true concentration, X for CO true concentration, Y for NO true concentration, Z for NO true concentration 2 True concentration; m is used for characterizing SO 2 Reading concentration, n is used to characterize H2S reading concentration, a is used to characterize CO reading concentration, b is used to characterize NO reading concentration, c is used to characterize NO 2 The concentration was read.
According to a third aspect of the present application, there is provided an electronic device comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of the present application.
According to a fourth aspect of the present application there is provided a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the method of the present application.
According to the gas content monitoring device for the automobile exhaust and the use method, the gas inlet pipe is connected with the automobile exhaust pipe, so that the automobile exhaust can enter the box body, and the automobile exhaust is treated through the plasma processor, so that Volatile Organic Compounds (VOC) in the automobile exhaust are decomposed into simple compounds, and the electrochemical sensor is protected on the premise that the content measurement of subsequent gas components is not affected. The concentration of one or more specific gas components in the automobile exhaust is detected by an electrochemical sensor, so that the gas concentration corresponding to the specific gas components is determined.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
Fig. 1 is a schematic diagram showing the overall structure of a gas content monitoring device for automobile exhaust according to an embodiment of the present application;
FIG. 2 is a schematic diagram showing the overall structure of a gas content monitoring device for automobile exhaust according to another embodiment of the present application;
FIG. 3 shows a schematic block diagram of an example electronic device that may be used to implement an embodiment of the application.
Wherein reference numerals are as follows: 1. a case body; 11. an air inlet pipe; 12. an exhaust pipe; 2. a plasma processor; 21. a first pipeline; 22. a second pipeline; 23. a third pipeline; 24. a flow baffle; 25. a deflector; 3. an air pump; 4. an electrochemical sensor; 5. a temperature sensor; 6. a circuit board; 71. an antenna; 72. and a wireless communication module.
Detailed Description
In order to make the objects, features and advantages of the present application more comprehensible, the technical solutions according to the embodiments of the present application will be clearly described in the following with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Fig. 1 shows a schematic diagram of an overall structure of a gas content monitoring device for automobile exhaust according to an embodiment of the present application.
Referring to fig. 1, according to a first aspect of an embodiment of the present application, there is provided a gas content monitoring device for automobile exhaust, the device including: the plasma processing device comprises a box body 1, wherein an air inlet pipe 11 and an air outlet pipe 12 are connected to the box body 1, and the air inlet pipe 11 is used for conveying gas to the plasma processor 2; the plasma processor 2 is arranged in the box body 1 and is connected with the air inlet pipe 11 through the air pump 3, the plasma processor 2 is used for processing the input gas to obtain processed gas, and the processed gas fills the box body 1 through a pipeline; an electrochemical sensor 4, the electrochemical sensor 4 is arranged in the box body 1 to detect the concentration of the processed gas, and the electrochemical sensor 4 comprises a sensor for measuring the sulfur content and other interference gas sensors; the sensor for measuring sulfur content comprises SO 2 Sensor and H 2 S sensor.
According to the gas content monitoring device for the automobile exhaust, which is provided by the embodiment of the application, the automobile exhaust can enter the box body 1 through the connection of the gas inlet pipe 11 and the automobile exhaust pipe, and the automobile exhaust is treated through the plasma processor, so that Volatile Organic Compounds (VOC) in the automobile exhaust are decomposed into simple compounds, and the electrochemical sensor 4 is protected on the premise of not influencing the content measurement of subsequent gas components. Concentration detection of one or more specific gas components in the automobile exhaust is performed by the electrochemical sensor 4, thereby determining the gas concentration corresponding to the specific gas components.
The box body 1 is connected with an air inlet pipe 11 and an air outlet pipe 12, and the air inlet pipe 11 and the air outlet pipe 12 can be one of a hose or a hard pipe. When intake pipe 11 is the condition of hose, box body 1 can adjust its mounted position more nimble according to the automobile body, and the hose can be connected with automobile exhaust pipe through staple bolt, ribbon etc. to realize carrying automobile exhaust to the purpose in the box body 1, in this case, box body 1 surface can be through setting up bolt or other mounting, thereby realizes fixing box body 1 on the automobile the purpose. When the air inlet pipe 11 is a hard pipe, the air inlet pipe 11 can be sleeved at the tail end of an automobile exhaust pipe, and the box body 1 is fixed behind the automobile exhaust pipe through the connection of the air inlet pipe 11, and the air inlet pipe 11 is preferably a hose. The air inlet pipe 11 and the air outlet pipe 12 can be arranged at two ends of the box body 1, so that the automobile exhaust can be better filled in the inner cavity of the whole box body 1. In the in-service use process of the device, when the air inlet pipe 11 is not connected with an automobile exhaust pipe or an automobile connected with the air inlet pipe 11 does not run, the device can enable air to fill the inner cavity of the whole box body 1 through the air inlet pipe 11, so that various electronic components in the box body 1 are protected.
Fig. 2 shows a schematic overall structure of a gas content monitoring device for automobile exhaust according to another embodiment of the present application.
Referring to fig. 2, in another embodiment, there may be multiple air inlet pipes 11 for delivering different gases, and when there are multiple air inlet pipes 11, the device does not need to separate the air inlet pipes 11 from the automobile exhaust pipe, and can deliver ambient air into the box body 1 through other air inlet pipes 11.
Further, in order to promote the speed of the gas input box body 1 of input, the intake pipe 11 of this device is connected with air pump 3, and according to the actual size of air pump 3, air pump 3 can set up inside box body 1, also can set up outside box body 1, and air pump 3 can be fixed outside or inside box body 1 through bolt or other mounting. When the air pump 3 is fixed in the box body 1, the size of the inner cavity of the box body 1 can be reduced, so that the automobile exhaust can fill the inner cavity of the whole box body 1 more quickly.
A plasma processor 2 is arranged in the box body 1 and is communicated with an air inlet pipe 11 and an air pump 3. Since automobile exhaust contains a large amount of Volatile Organic Compounds (VOCs), part of the volatile organic compounds also belong to PM2.5. These volatile organic compounds have a serious corrosion effect on the electrochemical sensor 4, and the volatile organic compounds are required to be treated by the plasma processor 2 to be decomposed into simple compounds, so that the electrochemical sensor 4 is protected. And the processing of the volatile organic compounds by the plasma processor 2 does not influence the measurement of the content of the gas components by the electrochemical sensor 4, especially the measurement of the content of sulfur in the automobile exhaust, and the detection accuracy is ensured.
After being processed by the plasma processor, the automobile exhaust enters the box body 1 through an outlet of the plasma processor, and other original automobile exhaust in the box body 1 is discharged through the exhaust pipe 12, so that the purpose that the processed automobile exhaust can be filled in the box body 1 is achieved. The plasma processor may be fixed inside the case 1 by bolts or other fixing members, or may be fixed with respect to the case 1 only by the first pipe 21 connected to the air pump 3. The first pipe 21 is a hard pipe.
The electrochemical sensor 4 is connected to the circuit board 6, the circuit board 6 is fixed inside the box body 1, the electrochemical sensor 4 has performance advantage for trace gas monitoring, different types of gas components can be detected through different types of electrochemical sensors 4, for example, when the application needs to detect the sulfur content in automobile exhaust, the sensor 4 for detecting the sulfur content can be selected as SO 2 Sensor and H 2 S sensor. By reacting SO 2 Sensor and H 2 The S sensor determines corresponding readings, and detects other interference through other interference gas sensors in the automobile exhaust, so that the corresponding readings are used for processing and analyzing the readings of sulfur-containing gas and the degrees of other interference gases, and the sulfur content in the automobile exhaust is determined.
In one embodiment, the other interfering gas sensor comprises NO 2 Sensors, NO sensors, and CO sensors.
Because automobile exhaust belongs to a complex gas environment, the gas in the automobile exhaust can be harmful to SO 2 Sensor and H 2 Based on the cross interference generated by the S sensor, the device can also be used for installing other gas sensors on the circuit board 6 according to the interference condition, and the sulfur content in the automobile exhaust can be more accurately determined through the analysis of the cross interference between other gas sensors and sulfur-containing gas. In particular, the electrochemical sensor 4 further comprises NO 2 Sensors, NO sensors, and CO sensors. By NO 2 Sensor readings, NO sensor readings and CO sensor readings and SO 2 Reading of sensor, H 2 S sensor reading carries out cross interference analysis, SO that SO in automobile exhaust can be determined 2 True concentration of (2) and H 2 The true concentration of S can also determine NO 2 The device can be applied to the content detection of various gases and can improve the accuracy of the content detection of other gases.
In an embodiment, the plasma processor 2 comprises a first line 21 and a second line 22, the first line 21 being for connection to the air pump 3 and the second line 22 being for delivering a portion of the treated gas into the cassette 1; a third pipeline 23 is also connected between the first pipeline 21 and the second pipeline 22, and the third pipeline 23 is used for conveying a part of treated gas to the first pipeline 21.
In order to fully utilize the capability of the plasma generator for treating the automobile exhaust, the method can form a circulating pipeline through the first pipeline 21, the second pipeline 22 and the third pipeline 23, so that the automobile exhaust conveyed by the air inlet pipe 11 can be repeatedly passed through the plasma processor 2 to decompose the exhaust as fully as possible, thereby further reducing the VOC content and the PM2.5 content in the treated automobile exhaust filled in the box body 1 and prolonging the service life of the sensor.
In one embodiment, a flow blocking plate 24 is disposed in the first pipeline 21, and the flow blocking plate 24 is connected to a communication port between the first pipeline 21 and the third pipeline 23 to block the input gas from flowing from the first pipeline 21 into the third pipeline 23.
In the circulating pipeline of the device, a flow baffle 24 can be arranged at the communication port of the first pipeline 21 and the third pipeline 23, so that the automobile exhaust is prevented from flowing into the third pipeline 23 from the first pipeline 21, and then enters the box body 1 after passing through the plasma generator.
In another implementation scenario, the device may be provided with a one-way exhaust valve directly at the communication port between the first pipeline 21 and the third pipeline 23, and an air pump 3 is disposed on the third pipeline 23, and part of the air in the second pipeline 22 is pumped into the third pipeline 23 by the air pump 3 and is conveyed to the first pipeline 21. So that the flow of the automobile exhaust from the first pipe 21 into the third pipe 23 can be completely blocked.
In one embodiment, a baffle 25 is disposed in the second pipeline 22, and the baffle 25 is connected to a communication port between the second pipeline 22 and the third pipeline 23, so as to guide the processed gas to flow from the second pipeline 22 into the third pipeline 23.
In the circulating pipeline of the device, a guide plate 25 may be further arranged at a communication port between the second pipeline 22 and the third pipeline 23, so as to prevent the processed automobile exhaust from being input into the box body 1 from the second pipeline 22 and guide the processed automobile exhaust to flow into the third pipeline 23 from the second pipeline 22.
It should be understood that the baffle plate 24 and the baffle plate 25 may be disposed on the first pipeline 21 and the second pipeline 22 obliquely according to the flow direction of the exhaust gas of the automobile. Specifically, the baffle plate 24 is disposed in front of the communication port between the third pipe 23 and the first pipe 21, i.e., between the communication port between the third pipe 23 and the first pipe 21 and the air pump 3, and is inclined toward the communication port between the third pipe 23 and the first pipe 21. The deflector 25 is obliquely arranged behind the communication port between the second pipeline 22 and the third pipeline 23, namely, between the communication port between the third pipeline 23 and the second pipeline 22 and the outlet of the second pipeline 22, and is obliquely oriented to the direction of the communication port between the third pipeline 23 and the second pipeline 22, so as to play roles in gathering and guiding, reduce the gas flowing out from the outlet of the second pipeline 22, and enable part of the gas to enter the third pipeline 23.
In an embodiment, a temperature sensor 5 is further provided in the case 1 to detect the temperature inside the case 1.
The temperature sensor 5 is installed on the circuit board 6, specifically, the temperature sensor 5 can be a temperature difference sensor, and whether the device is separated from an automobile tail gas pipe or not is monitored by monitoring the temperature difference. Specifically, when the temperature difference is detected to exceed the specified threshold value, the device can be assessed to be separated from the tail gas pipe of the automobile, namely, the currently sampled gas is not the tail gas in the tail gas pipe of the automobile, so that the judgment basis is improved.
Furthermore, the antenna 71 and the corresponding wireless communication module 72 can be further arranged in the device, and because the automobile, such as a diesel vehicle, works in a severe environment, the environment near the tail gas pipe is more severe, based on the fact, the antenna 71 of the device can be selected to be the spiral antenna 71, the box body 1 can be the nonmetal box body 1, and the spiral antenna 71 is arranged on the nonmetal box body 1, so that scratch damage is avoided.
The wireless communication module 72 may be an optional component. The wireless communication module 72 is installed and enabled when the device needs to independently transmit the monitoring signal to the outside. Thereby being beneficial to the content detection of tail gas components of diesel vehicles which are not provided with the automobile monitoring system, in particular non-road vehicles. For an automobile in which an automobile monitoring system such as an OBD is already installed, the device can connect signals to the OBD in a wired manner such as an RS485 interface. The wireless communication module 72 is installed on the circuit board 6, and the signal transmission with the user terminal is realized through the wireless communication module 72, so that the installation position of the device can be flexibly selected according to the structure of the vehicle body, the damage is avoided, and the transmission of wireless signals is not influenced.
According to a second aspect of the embodiment of the present application, there is provided a method for using a gas content monitoring device, the method comprising: firstly, connecting an air inlet pipe with an automobile exhaust emission port, starting an air pump, and sucking automobile exhaust into a box body; then, decomposing volatile organic compounds in the automobile exhaust through a plasma processor to obtain treated automobile exhaust; and then, under the condition that the treated automobile exhaust is full of the box body, carrying out concentration detection analysis on the gas components of the treated automobile exhaust through an electrochemical sensor, and determining the concentration of the gas components in the automobile exhaust.
Under the condition that the gas content monitoring device provided by the application is used for detecting the content of the gas components in the automobile exhaust, the method comprises the steps of connecting the gas inlet pipe with the automobile exhaust emission port, starting the gas pump, pumping the automobile exhaust into the box body through the gas pumping of the gas pump, decomposing volatile organic compounds in the automobile exhaust through the plasma processor after the automobile exhaust enters the box body, decomposing the volatile organic compounds into simple compounds, and discharging the simple compounds into the inner cavity of the box body, so that the box body is filled with the treated automobile exhaust. Wherein, original gas in the box body can be discharged through the blast pipe, and based on the density of automobile exhaust will be greater than the density of ambient air, the blast pipe of this device can set up the top with the side of box body, the electrochemical sensor of this device can set up the bottom in the box body to can fully be full of the automobile exhaust after handling in the box body, make the automobile exhaust after handling can fully contact electrochemical sensor simultaneously, realize the content detection to the gaseous composition in the automobile exhaust.
The device can set a preset time, when the air pump is used for exhausting the automobile exhaust for the preset time, the automobile exhaust after treatment can be determined to be full of the box body, the concentration of the corresponding gas component in the automobile exhaust can be read in real time through the electrochemical sensor, and when the reading of the electrochemical sensor is kept stable within the set time, the automobile exhaust after treatment can be determined to be full of the box body. At this time, the read concentration of the gas component in the automobile exhaust can be obtained. And then, performing concentration detection analysis on the obtained reading concentration of the gas component according to the cross influence between the performance parameter of the electrochemical sensor and the gas component, so as to determine the actual concentration of the gas component in the automobile exhaust.
In one embodiment, after determining the concentration of the gas component in the automobile exhaust, the method further comprises: firstly, separating an air inlet pipe from an automobile exhaust emission port, starting an air pump, and sucking ambient air into a box body; then, the treated automobile exhaust in the box body is discharged through an exhaust pipe by ambient air.
After the detection is completed, the method separates the air inlet pipe from the automobile exhaust outlet, so that the ambient air is pumped into the box through the air pump, the treated automobile exhaust in the box is discharged through the exhaust pipe, in the operation, the method can also read the reading concentration of the gas component in the box in real time through the electrochemical sensor, and determine a specified threshold according to the content of the gas component in the ambient air, and when the reading concentration is reduced to 0 or reduced to the specified threshold, the method determines that all the exhaust in the box is discharged. It should be noted that, because there are multiple components in the automobile exhaust, each electrochemical sensor of the method can correspond to different specified thresholds according to actual situations, and under the condition that all electrochemical sensors meet the corresponding specified thresholds, it is determined that all exhaust in the box body is exhausted.
In one embodiment, the concentration detection analysis is performed on the gas component of the treated automobile exhaust by using an electrochemical sensor, so as to determine the concentration of the gas component in the automobile exhaust, including: determination of SO in automobile exhaust by means of corresponding electrochemical sensor 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 Reading the concentration; SO based on preset gas cross influence table 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 The read concentration is analyzed to determine SO 2 True concentration, H 2 S true concentration, CO true concentration, NO true concentration, and NO 2 True concentration.
In one embodiment, the SO is based on a predetermined gas cross-influence table 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 The read concentration is analyzed to determine SO 2 True concentration, H 2 S true concentration, CO true concentration, NO true concentration, and NO 2 True concentration, comprising: determining an analysis formula set based on the gas cross influence table, wherein the analysis formula set is as follows:
X+(1.4/250)Y+(2.8/90)Z+(3.4/100)U+(1.8/200)V＝a
(-0.2/100)X+Y+(0.5/90)Z+(0.2/100)U+(0.4/200)V＝b
(-3.2/250)Y+Z+(19.9/200)V＝c
(4.7/500)X+(-2/250)Y+(-84/90)Z+U+(-0.7/200)V＝m
(3/100)X+(-1/50)Y+(1/10)Z+(1/10)U+V＝n
wherein U is used for characterizing SO 2 True concentration, V was used to characterize H 2 S true concentration, X for CO true concentration, Y for NO true concentration, Z for NO true concentration 2 True concentration; m is used for characterizing SO 2 Reading the concentration, n, for characterizing H 2 S reading concentration, a is used for representing CO reading concentration, b is used for representing NO reading concentration, c is used for representing NO 2 The concentration was read.
To facilitate a further understanding of the above embodiments, electrochemical sensors of the five types are described under the model numbers semeatech3S02-500 EN, semeatech 7H2S-100, semeatech 3CO-10000CN, semeatech3NO-2000CN, semeatech3NO 2-500 CN. Through testing the electrochemical sensors of the five types, the gas cross influence table of the method comprises the following table:
list one
| Gas and its preparation method | Concentration (ppm) | Output signal of electrochemical sensor (equivalent to ppm sulfur dioxide) |
| Sulfur dioxide | 90 | -84.0 |
| Nitric Oxide (NO) | 250 | -2.0 |
| Carbon monoxide | 500 | 4.7 |
| Hydrogen gas | 200 | 2.7 |
| Hydrogen chloride | 100 | 0.2 |
| Hydrogen sulfide | 200 | -0.7 |
| Ethylene | 200 | 48.0 |
Watch II
| Gas and its preparation method | Concentration (ppm) | Output signal of electrochemical sensor (equivalent to ppm nitrogen dioxide) |
| Sulfur dioxide | 100 | 0 |
| Nitric Oxide (NO) | 250 | -3.2 |
| Carbon monoxide | 500 | 0 |
| Hydrogen gas | 200 | 0 |
| Hydrogen chloride | 100 | 0.1 |
| Hydrogen sulfide | 200 | 19.9 |
| Ethylene | 200 | 0.1 |
Watch III
| Gas and its preparation method | Concentration (ppm) | Output signal of electrochemical sensor (equivalent to ppm nitric oxide) |
| Sulfur dioxide | 100 | 0.2 |
| Nitric Oxide (NO) | 90 | 0.5 |
| Carbon monoxide | 500 | -0.2 |
| Hydrogen gas | 200 | 0.2 |
| Hydrogen chloride | 100 | -0.5 |
| Hydrogen sulfide | 200 | 0.4 |
| Ethylene | 200 | 0.4 |
Table four
| Gas and its preparation method | Concentration (ppm) | Output signal of electrochemical sensor (equivalent to ppm carbon monoxide) |
| Sulfur dioxide | 100 | 3.4 |
| Nitric Oxide (NO) | 90 | 2.8 |
| Carbon monoxide | 250 | 1.4 |
| Hydrogen gas | 200 | 121.4 |
| Hydrogen chloride | 100 | 2.2 |
| Hydrogen sulfide | 200 | 1.8 |
| Ethylene | 200 | 10 |
TABLE five
| Gas and its preparation method | Concentration (ppm) | Electrochemical deviceOutput signal of chemical sensor (equivalent to ppm hydrogen sulfide) |
| Carbon monoxide | 100 | ＜3 |
| Sulfur dioxide | 10 | ＜1 |
| Nitric Oxide (NO) | 50 | ～-1 |
| Nitrogen dioxide | 10 | ＜1 |
| Hydrogen gas | 10000 | ＜12 |
| Ethylene | 100 | 0 |
From tables one through five described above, the analysis formula set of the present application can be obtained.
According to a third aspect of the present application, there is provided an electronic device comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the methods of the present application.
According to a fourth aspect of the present application there is provided a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of the present application.
According to an embodiment of the present application, the present application also provides an electronic device and a readable storage medium.
FIG. 3 shows a schematic block diagram of an example electronic device that may be used to implement an embodiment of the application. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the applications described and/or claimed herein.
As shown in fig. 3, the electronic device 300 includes a computing unit 301 that can perform various suitable actions and processes according to a computer program stored in a Read Only Memory (ROM) 302 or a computer program loaded from a storage unit 308 into a Random Access Memory (RAM) 303. In the RAM 303, various programs and data required for the operation of the device 300 may also be stored. The computing unit 301, the ROM 302, and the RAM 303 are connected to each other by a bus 304. An input/output (I/O) interface 305 is also connected to bus 304.
Various components in device 300 are connected to I/O interface 305, including: an input unit 306 such as a keyboard, a mouse, etc.; an output unit 307 such as various types of displays, speakers, and the like; a storage unit 308 such as a magnetic disk, an optical disk, or the like; and a communication unit 309 such as a network card, modem, wireless communication transceiver, etc. The communication unit 309 allows the device 300 to exchange information/data with other devices via a computer network such as the internet and/or various telecommunication networks.
The computing unit 301 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 301 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 301 performs the various methods and processes described above, such as the use of one gas content monitoring device. For example, in some embodiments, a method of using a gas content monitoring device may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as the storage unit 308. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 300 via the ROM 302 and/or the communication unit 309. When the computer program is loaded into the RAM 303 and executed by the computing unit 301, one or more steps of the method of using the gas content monitoring device of one of the above described may be performed. Alternatively, in other embodiments, the computing unit 301 may be configured to perform a method of using a gas content monitoring device in any other suitable way (e.g. by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
Program code for carrying out methods of the present application may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present application, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), and the internet.
The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server may be a cloud server, a server of a distributed system, or a server incorporating a blockchain.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present disclosure may be performed in parallel, sequentially, or in a different order, so long as the desired result of the technical solution of the present disclosure is achieved, and the present disclosure is not limited herein.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (3)
1. A method of using a gas content monitoring device, the method comprising:
connecting an air inlet pipe with an automobile exhaust emission port, starting an air pump, and sucking the automobile exhaust into the box body;
decomposing volatile organic compounds in the automobile exhaust through a plasma processor to obtain treated automobile exhaust;
under the condition that the treated automobile exhaust is full of the box body, carrying out concentration detection analysis on the gas components of the treated automobile exhaust through an electrochemical sensor, and determining the concentration of the gas components in the automobile exhaust;
wherein, automobile exhaust's gas content monitoring device includes:
the box body is connected with an air inlet pipe and an air outlet pipe, and the air inlet pipe is used for conveying gas to the plasma processor;
the plasma processor is arranged in the box body and connected with the air inlet pipe through an air pump, and is used for processing the input gas to obtain processed gas, and the processed gas fills the box body through a pipeline;
the electrochemical sensor is arranged in the box body to detect the concentration of the treated gas, and comprises a sensor for measuring the sulfur content and other interference gas sensors; the sensor for measuring sulfur content comprises SO 2 Sensor and H 2 S sensor;
the other interfering gas sensor includes NO 2 A sensor, a NO sensor, and a CO sensor;
the plasma processor comprises a first pipeline and a second pipeline, wherein the first pipeline is used for being connected to an air pump, and the second pipeline is used for conveying a part of the processed gas into the box body;
a third pipeline is further connected between the first pipeline and the second pipeline and is used for conveying a part of the treated gas to the first pipeline;
a flow baffle plate is arranged in the first pipeline and connected to a communication port of the first pipeline and the third pipeline so as to prevent the input gas from flowing into the third pipeline from the first pipeline;
a guide plate is arranged in the second pipeline and connected to a communication port of the second pipeline and the third pipeline so as to guide the treated gas to flow into the third pipeline from the second pipeline;
the concentration detection analysis is carried out on the gas components of the treated automobile exhaust through the electrochemical sensor, and the concentration of the gas components in the automobile exhaust is determined, and the method comprises the following steps:
determination of SO in automobile exhaust by means of corresponding electrochemical sensor 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 Reading the concentration;
based on a preset gas cross influence table, the SO 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 The read concentration is analyzed to determine SO 2 True concentration, H 2 S true concentration, CO true concentration, NO true concentration, and NO 2 True concentration;
based on a preset gas cross influence table, the SO 2 Reading the concentration, H 2 S reading concentration, CO reading concentration, NO reading concentration and NO 2 The read concentration is analyzed to determine SO 2 True concentration, H 2 S true concentration, CO true concentration, NO true concentration, and NO 2 True concentration, comprising:
determining a set of analysis formulas based on the gas cross-influence table, the set of analysis formulas being as follows:
X+(1.4/250)Y+(2.8/90)Z+(3.4/100)U+(1.8/200)V＝a
(-0.2/100)X+Y+(0.5/90)Z+(0.2/100)U+(0.4/200)V＝b
(-3.2/250)Y+Z+(19.9/200)V＝c
(4.7/500)X+(-2/250)Y+(-84/90)Z+U+(-0.7/200)V＝m
(3/100)X+(-1/50)Y+(1/10)Z+(1/10)U+V＝n
wherein U is used for characterizing SO 2 True concentration, V was used to characterize H 2 S true concentration, X for CO true concentration, Y for NO true concentration, Z for NO true concentration 2 True concentration;
m is used for characterizing SO 2 Reading the concentration, n, for characterizing H 2 S reading concentration, a is used for representing CO reading concentration, b is used for representing NO reading concentration, c is used for representing NO 2 The concentration was read.
2. The method of claim 1, wherein a temperature sensor is further provided within the cartridge to detect the temperature inside the cartridge.
3. The method of claim 1, wherein after determining the concentration of the gas component in the automobile exhaust, the method further comprises:
separating an air inlet pipe from the automobile exhaust emission port, starting an air pump, and sucking ambient air into the box body;
and the treated automobile tail gas in the box body is discharged through an exhaust pipe by the ambient air.
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