CN109580887A - Gas monitoring system and monitoring method with zero gas generating device self-diagnostic function - Google Patents
Gas monitoring system and monitoring method with zero gas generating device self-diagnostic function Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
This application involves gas monitoring systems and monitoring method with zero gas generating device self-diagnostic function.The gas monitoring system includes gas controlling device, the one zero gas generating device and the 2nd 0 gas generating device；The gas controlling device has zero gas entrance, and the one zero gas generating device is exported with the one zero gas, and the 2nd 0 gas generating device is exported with the 2nd 0 gas；The one zero gas outlet of the zero gas entrance and the one zero gas generating device of the gas controlling device passes through first point of air circuit connection；The 2nd 0 gas outlet of the zero gas entrance and the 2nd 0 gas generating device of the gas controlling device passes through second point of air circuit connection.In the application, by two zero gas generating devices calibrated respectively as a result, judge the health status of main filter core, and then determine the need for timely more change owner filter core, guarantee the accuracy of calibration result.
Description
Technical field
This application involves environmental monitoring field, and in particular to a kind of gas prison with zero gas generating device self-diagnostic function
Examining system and monitoring method.
Background technique
Gas monitoring instrument generally uses sensor as the detecting element of monitoring gas componant and concentration, in monitoring process
In, on sensor apply amplifying circuit after, when not being passed through under test gas, electric signal can be exported, the electric signal can with the time,
Slowly faint drift occurs for the variation of temperature.During operating gas monitor, occurred to detect and compensate
Drift, it is necessary to be passed through zero gas without containing under test gas and the zero point of gas monitoring instrument be corrected.
The inventors of the present application found that in the prior art, in order to guarantee the accuracy of monitoring result, needing to gas-monitoring
Instrument calibrates zero point, as zero gas of calibration after usually filtering surrounding air.Also, after completing monitoring by gas monitoring instrument
Gas can be directly discharged in surrounding air.Therefore, this kind of mode of operation, require to be filtered surrounding air every time into
And zero gas is generated, the gas flow filtered required for causing is bigger, requirement big to the consumption of filter core used in filter process
Height, during prolonged use, the performance of filter core can be gradually reduced.After the performance decline of filter core, adsorption efficiency decline, no
Under test gas can be sufficiently removed, or even can as the temperature rises, the gas adsorbed on filter core can occur that phenomenon is desorbed, and cause
There is gas component to be measured during calibrating to gas monitoring instrument, so that the zero point error of gas sensor is larger, institute school
The zero position error of quasi- gas monitoring instrument is larger.
Therefore, it in order to guarantee filter efficiency, needs using the biggish filter core of volume, and need to regularly replace filter core, filter core
Replacement cycle it is shorter, higher operating costs.Also, if gas monitoring instrument itself cannot be done in time when filter core breaks down
Judge out, to influence to calibrate effect, so that monitoring result generates error.
Summary of the invention
In view of problems of the prior art, the application is directed to a kind of with zero gas generating device self-diagnostic function
Gas monitoring system according to the calibration result of reference filter core and main filter core, judge the strong of main filter core by the way that reference filter core is arranged
Health situation guarantees the accuracy of calibration result and monitoring result so as to more change owner filter core in time.
One embodiment of the application provides a kind of gas monitoring system with zero gas generating device self-diagnostic function,
The gas monitoring system includes gas controlling device, the one zero gas generating device and the 2nd 0 gas generating device；
The gas controlling device has zero gas entrance, and the one zero gas generating device is exported with the one zero gas, institute
The 2nd 0 gas generating device is stated to export with the 2nd 0 gas；
The one zero gas outlet of zero gas entrance of the gas controlling device and the one zero gas generating device passes through the
One point of air circuit connection；
The 2nd 0 gas outlet of zero gas entrance of the gas controlling device and the 2nd 0 gas generating device passes through the
Two points of air circuit connections.
As the optional embodiment of the application, it is provided with reference filter core in the one zero gas generating device, described
Main filter core is provided in 20 gas generating devices.
As the optional embodiment of the application, zero gas entrance, the one zero gas of the gas controlling device occur
The first triple valve is provided between the one zero gas outlet of device, the 2nd 0 gas outlet of the 2nd 0 gas generating device.
As the optional embodiment of the application, the gas monitoring system further includes particulate matter filter device, and described
Grain object filter device has air inlet and air outlet, and the gas controlling device has gas access to be monitored；
The gas outlet of the particulate matter filter device is connect with the gas access to be monitored of the gas controlling device.
As the optional embodiment of the application, the gas outlet of the particulate matter filter device, first triple valve, institute
It states and is provided with the second triple valve between the 2nd 0 gas outlet of the 2nd 0 gas generating device.
As the optional embodiment of the application, first triple valve and second triple valve are three-way magnetic valve.
As the optional embodiment of the application, the gas controlling device has a gas vent after monitoring, and described first
Zero gas generating device has gas access after the first monitoring, and there is the 2nd 0 gas generating device gas after the second monitoring to enter
Mouthful；
Gas after first monitoring of gas vent and the one zero gas generating device after the monitoring of the gas controlling device
Body entrance divides air circuit connection by third；
Gas after second monitoring of gas vent and the 2nd 0 gas generating device after the monitoring of the gas controlling device
Body entrance passes through the 4th point of air circuit connection.
It is defeated that gas is provided with as the optional embodiment of the application, in the third point gas circuit and the 4th point of gas circuit
Send device.
Embodiments herein, which also proposed, a kind of described has zero gas generating device self diagnosis function using any of the above-described
Can gas monitoring system execute gas monitoring method, the gas monitoring method comprising steps of
A, start the one zero gas generating device, zero gas generated using the one zero gas generating device is to the gas
Body monitoring device carries out zero-bit adjustment, obtains first zero position, closes the one zero gas generating device；
B, start the 2nd 0 gas generating device, zero gas generated using the 2nd 0 gas generating device is to the gas
Body monitoring device carries out zero-bit adjustment, obtains the second dead-center position；
C, according to the difference of the first zero position and second dead-center position, it is determined whether need replacing described
20 gas generating devices.
Another embodiment of the application provides a kind of gas monitoring system with zero gas generating device self-diagnostic function,
The gas monitoring system includes memory, processor and is stored on the memory and can run on the processor
Computer program, the processor executes the computer program for realizing above-mentioned gas monitoring method.
In the gas monitoring system that the application proposes, by the way that two zero gas generating devices, one of those zero gas hair is arranged
It is provided with reference filter core in generating apparatus, is provided with main filter core in another zero gas generating device, passes through two zero gas generating devices
It is being calibrated respectively as a result, judge the health status of main filter core, and then determine the need for timely more change owner filter core, Jin Erbao
Demonstrate,prove the accuracy of calibration result.
Detailed description of the invention
Fig. 1 is the gas monitoring system signal with zero gas generating device self-diagnostic function of one embodiment of the application
Figure.
Fig. 2 is the gas monitoring system signal with zero gas generating device self-diagnostic function of one embodiment of the application
Figure.
Fig. 3 is the gas monitoring system signal with zero gas generating device self-diagnostic function of one embodiment of the application
Figure.
Fig. 4 is the gas monitoring system signal with zero gas generating device self-diagnostic function of one embodiment of the application
Figure.
Specific embodiment
Below in conjunction with drawings and examples, a specific embodiment of the invention is described in more details, so as to energy
The advantages of enough more fully understanding the solution of the present invention and its various aspects.However, specific embodiments described below and reality
It applies example to be for illustrative purposes only, rather than limiting the invention.
" connection " described herein unless otherwise specific regulation or is limited, should be broadly understood, can be directly
It is connected, is also possible to be connected by intermediary.In the description of the present application, it is to be understood that "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", " top ", " bottom end " is orientation based on the figure or position
Relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
As shown in Figure 1, for the gas with zero gas generating device self-diagnostic function provided in one embodiment of the application
Body monitors system schematic, including gas controlling device 10, the one zero gas generating device 20 and the 2nd 0 gas generating device 30.Its
In, gas controlling device 10 has zero gas entrance.One zero gas generating device 20 is exported with the one zero gas.2nd 0 gas occurs
Device 30 is exported with the 2nd 0 gas.
In the gas monitoring system of the present embodiment, zero gas entrance of gas controlling device 10 and the one zero gas generating device 20
The one zero gas outlet pass through first point of air circuit connection.Also, zero gas entrance of gas controlling device 10 and the 2nd 0 gas occur
The 2nd 0 gas outlet of device 30 passes through second point of air circuit connection.One zero gas generating device 20 and the 2nd 0 gas generating device 30
It is used to generate zero gas, and is respectively intended to calibrate gas controlling device 10 using zero gas of generation.
Optionally, the gas controlling device 10 of the application is stench on-line computing model, for carrying out component to foul gas
Composition and content analysis.
As the optional embodiment of the present embodiment, reference filter core is provided in the one zero gas generating device 20.?
Main filter core is provided in 20 gas generating devices 30.Wherein, reference filter core and main filter core were used to air filtering zero gas of generation, and
And the performance of reference filter core is better than the performance of main filter core.In the different embodiments of the application, different type also can be selected
Zero gas generating device, zero gas is generated in different ways, as long as meeting in two selected zero gas generating devices
One of them zero gas generating device can guarantee the accuracy of calibration result within threshold value.
Optionally, the type of the embodiment different as the application, reference filter core and main filter core includes but is not limited to live
One or more of property charcoal, carbon molecular sieve, resin.
In the gas monitoring system of the present embodiment, the one zero gas generating device 20 and the 2nd 0 gas generating device 30 are used to
Zero gas is produced, generated zero gas is respectively used alone to calibrate gas controlling device 10.Also, since the one zero gas is sent out
The performance of generating apparatus 10 is better than the 2nd 0 gas generating device 30, then, zero gas generated by the one zero gas generating device 20
Quality is higher than zero gas generated by the 2nd 0 gas generating device 30.Therefore, when execution first divides gas circuit, gas-monitoring is filled
Referential is had more when setting the accuracy for the result that 10 are calibrated compared to second point of gas circuit of execution, and then judges whether to need
The 2nd 0 gas generating device 30 of replacement in time.
In the different embodiments of the application, the above-mentioned gas-monitoring system with zero gas generating device self-diagnostic function
It further include the first triple valve F1 in system, as shown in Figure 2.Wherein, zero gas of gas controlling device 10 is arranged in the first triple valve F1
Entrance, the one zero gas generating device 20 the one zero gas outlet and the 2nd 0 gas generating device 30 the 2nd 0 gas outlet three it
Between.It is in different positions by the spool in the first triple valve F1 of switching, realizes that zero gas of gas controlling device 10 enters respectively
Mouthful export and to connect with the one zero gas of the one zero gas generating device 20, alternatively, realize gas controlling device 10 zero gas entrance and
2nd 0 gas of the 2nd 0 gas generating device 30 exports connection, and then realizes the switching of first point of gas circuit and second point of gas circuit.It can
Choosing, the first triple valve F1 selects three-way magnetic valve, can automatically control the switching of spool.
In the different embodiments of the application, for different gas to be monitored, when containing particle in gas to be monitored
When object, the gas monitoring system with zero gas generating device self-diagnostic function of the application further includes particulate matter filter device 40,
As shown in Figure 3.
Particulate matter filter device 40 is used for the particulate contaminant being filtered to remove in gas to be monitored, has air inlet and outlet
Mouthful.Also, gas access to be monitored is additionally provided on gas controlling device 10.The gas outlet of particulate matter filter device 40 and gas
The gas access to be monitored of monitoring device 10 connects, and the gas to be monitored for removing particulate contaminant is sent into gas controlling device 10
In be monitored.
By Fig. 3, optionally, the gas monitoring system of the present embodiment further includes the second triple valve F2.Second triple valve F2 is set
Set the 2nd 0 gas outlet three of the gas outlet in particulate matter filter device 40, the first triple valve F1, the 2nd 0 gas generating device 30
Between person.Optionally, the second triple valve F2 selects three-way magnetic valve, can automatically control the switching of spool.
Further, in the application, gas controlling device 10 is additionally provided with gas vent after monitoring.One zero gas fills
It sets 20 and is additionally provided with gas access after the first monitoring.2nd 0 gas generating device 30 is additionally provided with gas access after the second monitoring.
Gas vent enters with gas after the first monitoring of the one zero gas generating device 20 after the monitoring of gas controlling device 10
Mouth divides air circuit connection by third.Third point gas circuit is used to gas after monitoring that gas controlling device 10 is discharged being conveyed into first
In zero gas generating device 20.
Gas vent enters with gas after the second monitoring of the 2nd 0 gas generating device 30 after the monitoring of gas controlling device 10
Mouth passes through the 4th point of air circuit connection.4th point of gas circuit is used to gas after monitoring that gas controlling device 10 is discharged being conveyed into second
In zero gas generating device 30.
Further, air transporting arrangement 50 is provided in third point gas circuit and/or the 4th point of gas circuit.The application's
It is provided with two air transporting arrangements in different embodiments, in gas monitoring system, is located at third point gas circuit and the 4th
Divide in gas circuit.Alternatively, being provided with an air transporting arrangement 50 in the main gas circuit of third point gas circuit and the 4th point of gas circuit, such as scheme
Shown in 3.Optionally, the air transporting arrangement in the present embodiment selects air pump.
Meanwhile the above-mentioned gas-monitoring system with zero gas generating device self-diagnostic function is utilized present applicant proposes a kind of
The gas monitoring method that system executes, includes the following steps.
A, start the one zero gas generating device 20, gas-monitoring is filled using zero gas that the one zero gas generating device 20 generates
The adjustment calibration of 10 carry out zero-bits is set, first zero position is obtained.Then, the one zero gas generating device 20 is closed.
B, start the 2nd 0 gas generating device 30, gas-monitoring is filled using zero gas that the 2nd 0 gas generating device 30 generates
The adjustment calibration of 10 carry out zero-bits is set, the second dead-center position is obtained.
C, according to the difference between first zero position obtained above and the second dead-center position, it is determined whether need replacing
2nd 0 gas generating device 30.
In above-mentioned gas monitoring method, zero gas and the 2nd 0 gas generated using the one zero gas generating device 20 is filled
Zero gas for setting 30 generations carries out zero-bit adjustment calibration to gas controlling device 10 respectively.Wherein, the one zero gas generating device 20 is
Reference calibrating installation, the 2nd 0 gas generating device 30 are main calibrating installation.Also, the runnability of the one zero gas generating device 20
It is better than the 2nd 0 gas generating device 30.That is, zero-bit tune of the one zero gas generating device 20 to gas controlling device 10
The accuracy of whole calibration result is higher, so that the difference of the first zero position and the second dead-center position obtained according to calibration, comes
Determine the need for the 2nd 0 gas generating device 30 of replacement.The gas monitoring method of the present embodiment can replace calibration with zero in time
Gas generating device guarantees the accuracy of calibration result.
In the different embodiments of the application, reference filter core is provided in first zero generating device 20, for filtering
Generate zero gas.It is provided with main filter core in 2nd 0 gas generating device 30, generates zero gas for filtering.In the present embodiment, according to step
The difference for the second dead-center position that the first zero position and step B that rapid A is obtained obtain, judges the health status of main filter core, really
It is fixed whether to need replacing main filter core.
In embodiments herein, the health status judgment basis of main filter core are as follows:
Invalid coefficient Y=(SMain filter core-SReference filter core)/(SUnder test gas-SReference filter core)。
Wherein, SMain filter coreFor the signal value of main filter core, SReference filter coreFor the signal value of reference filter core, SUnder test gasIt is obtained under test gas
Signal value.
Invalid coefficient Y is between 0 to 1.Wherein, invalid coefficient Y is 0, indicates that main filter core is most healthy state.Failure system
Number Y is 1, indicates that main filter core is entirely ineffective, needs replacing.
Optionally, in the gas monitoring method of the application, in step A, using air transporting arrangement 50 by the one zero gas
Zero pneumatic transmission that generating device 20 generates enters in gas controlling device 10.In step B, using air transporting arrangement 50 by the 2nd 0 gas
Zero pneumatic transmission that generating device 30 generates enters in gas controlling device 10.Further, air transporting arrangement 50 is air pump.
As shown in figure 4, being additionally provided in another embodiment of the application a kind of with zero gas generating device self-diagnostic function
Gas monitoring system.The gas monitoring system of the present embodiment includes memory 630 and processor 620 (such as CPU), also,
Computer program 6301 is stored on memory 630, which can run on processor 620, for real
Existing various application functions.Also, the processor 620 in the present embodiment is able to carry out the computer program stored in memory 630
6301, and for realizing gas monitoring method any of the above-described in the application.
Memory 630 in the present embodiment includes but is not limited to: disk, CD, magneto-optic disk, semiconductor memory etc. are various
Storage medium.
Finally, it should be noted that obviously, the above embodiment is merely an example for clearly illustrating the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the art, it can also do on the basis of the above description
Other various forms of variations or variation out.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
The obvious changes or variations that Shen goes out are still in the protection scope of this invention.
Claims (10)
1. a kind of gas monitoring system with zero gas generating device self-diagnostic function, which is characterized in that the gas-monitoring system
System includes gas controlling device, the one zero gas generating device and the 2nd 0 gas generating device；
The gas controlling device has a zero gas entrance, and the one zero gas generating device has an outlet of the one zero gas, and described the
20 gas generating devices are exported with the 2nd 0 gas；
The one zero gas outlet of the zero gas entrance and the one zero gas generating device of the gas controlling device passes through first point
Air circuit connection；
The 2nd 0 gas outlet of the zero gas entrance and the 2nd 0 gas generating device of the gas controlling device passes through second point
Air circuit connection.
2. the gas monitoring system with zero gas generating device self-diagnostic function according to claim 1, which is characterized in that
It is provided with reference filter core in the one zero gas generating device, is provided with main filter core in the 2nd 0 gas generating device.
3. the gas monitoring system with zero gas generating device self-diagnostic function according to claim 1, which is characterized in that
The one zero gas outlet of the zero gas entrance, the one zero gas generating device of the gas controlling device, the 2nd 0 gas hair
The first triple valve is provided between the 2nd 0 gas outlet of generating apparatus.
4. the gas monitoring system with zero gas generating device self-diagnostic function according to claim 3, which is characterized in that
The gas monitoring system further includes particulate matter filter device, and the particulate matter filter device has air inlet and air outlet, institute
Gas controlling device is stated with gas access to be monitored；
The gas outlet of the particulate matter filter device is connect with the gas access to be monitored of the gas controlling device.
5. the gas monitoring system with zero gas generating device self-diagnostic function according to claim 4, which is characterized in that
The 2nd 0 gas outlet of the gas outlet of the particulate matter filter device, first triple valve, the 2nd 0 gas generating device
Between be provided with the second triple valve.
6. the gas monitoring system with zero gas generating device self-diagnostic function according to claim 5, which is characterized in that
First triple valve and second triple valve are three-way magnetic valve.
7. the gas monitoring system with zero gas generating device self-diagnostic function according to claim 1, which is characterized in that
The gas controlling device has gas vent after monitoring, and there is the one zero gas generating device gas after the first monitoring to enter
Mouthful, the 2nd 0 gas generating device has gas access after the second monitoring；
Gas vent enters with gas after the first monitoring of the one zero gas generating device after the monitoring of the gas controlling device
Mouth divides air circuit connection by third；
Gas vent enters with gas after the second monitoring of the 2nd 0 gas generating device after the monitoring of the gas controlling device
Mouth passes through the 4th point of air circuit connection.
8. the gas monitoring system with zero gas generating device self-diagnostic function according to claim 7, which is characterized in that
Air transporting arrangement is provided in the third point gas circuit and the 4th point of gas circuit.
9. a kind of held using any gas monitoring system with zero gas generating device self-diagnostic function of claim 1-8
Capable gas monitoring method, which is characterized in that the gas monitoring method comprising steps of
A, start the one zero gas generating device, the gas is supervised using zero gas that the one zero gas generating device generates
It surveys device and carries out zero-bit adjustment, obtain first zero position, close the one zero gas generating device；
B, start the 2nd 0 gas generating device, the gas is supervised using zero gas that the 2nd 0 gas generating device generates
It surveys device and carries out zero-bit adjustment, obtain the second dead-center position；
C, according to the difference of the first zero position and second dead-center position, it is determined whether need replacing the described 2nd 0
Gas generating device.
10. a kind of gas monitoring system with zero gas generating device self-diagnostic function, which is characterized in that the gas-monitoring system
System is including memory, processor and is stored in the computer program that can be run on the memory and on the processor,
The processor executes the computer program for realizing gas monitoring method as claimed in claim 9.
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| CN113406268A (en) * | 2020-03-17 | 2021-09-17 | 德尔格安全股份两合公司 | Method for regulating an air supply system and air supply system with regulating function |
| CN113588882A (en) * | 2021-08-02 | 2021-11-02 | 中科三清科技有限公司 | Automatic zero calibration method based on ambient air quality monitoring device |
| CN114324769A (en) * | 2021-12-30 | 2022-04-12 | 天津同阳科技发展有限公司 | Instrument quality control method and device, electronic equipment and storage medium |
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