CN108872331A - A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument - Google Patents
A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument Download PDFInfo
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- CN108872331A CN108872331A CN201711462391.9A CN201711462391A CN108872331A CN 108872331 A CN108872331 A CN 108872331A CN 201711462391 A CN201711462391 A CN 201711462391A CN 108872331 A CN108872331 A CN 108872331A
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- 239000000779 smoke Substances 0.000 title claims abstract description 117
- 238000012544 monitoring process Methods 0.000 title abstract description 12
- 239000004065 semiconductor Substances 0.000 claims abstract description 40
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 230000003750 conditioning effect Effects 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 238000003491 array Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 12
- 230000005518 electrochemistry Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 4
- 238000010411 cooking Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument, unit is sucked including oil smoke, semiconductor transducer measuring unit, constant temperature chamber, data processing unit, oil smoke sucking unit is connect by tracheae with constant temperature chamber, it is intracavitary that semiconductor transducer measuring unit is placed on constant temperature, constant temperature is intracavitary to be equipped with Temperature Humidity Sensor, data processing unit sucks unit with oil smoke respectively and semiconductor transducer measuring unit is electrically connected, after extraneous oil smoke to be measured is quantitatively sucked constant temperature chamber by oil smoke sucking unit, constant temperature chamber carries out temperature control to the oil smoke of sucking, the semiconductor transducer measuring unit oil smoke intracavitary to constant temperature measures, obtain the residue C of oil smoke concentration, data processing unit handles residue C to obtain the respective value of oil smoke concentration, after measurement, oil smoke is discharged oil smoke sucking unit.Advantage：Oil smoke concentration value can more accurately be measured, avoid because the reason of external air flow, temperature, humidity lead to existing oil smoke monitor measured deviation the technical issues of.
Description
Technical field
The present invention relates to a kind of intelligent reverse-flow type oil smoke concentrations, and instrument is monitored online, and belongs to electrochemistry cooking fume technology
Field.
Background technique
To implement《Law of Environmental Protection of the People's Republic of China》, oil smoke online instrument be intended to by oil smoke discharge state from
Dynamic monitoring in time, accurately and comprehensively reflects Present Situation of Environmental Quality and development trend, is environmental management, pollution source apportionment, environment
Planning, environmental evaluation provide objective scientific basis, enhance the consciousness of abiding by the law of enterprise, improve the modernization of environmentally friendly on-site law-enforcing
Level progressively reaches the final purpose for improving environmental quality.Thus intelligent reverse-flow type oil smoke concentration on-line monitoring instrument be one not
The instrument that can lack.
Oil smoke monitoring at present is detected there are four types of principle：
1, using the oil smoke monitor of optical principle
Using the oil smoke monitor of optical principle, laser oil smoke monitor, infrared oil smoke monitor, visible light oil smoke prison can be divided into
Instrument is controlled, but can't resolve pollution problem, because oil smoke has dependency, is attached to above sensor, it over time can be complete
Complete hiding optical sensor surface often need to be cleaned and safeguard, can not accurately measure concentration value.
For example, number of patent application is 201510837303.3《A kind of automatic cooking fumes detection device》It discloses using infrared
The equipment that method detects soot gas.Infrared method basic principle is to extract gas uniform speed out, then introduce gas into organic molten
Liquid allows gas and solution to come into full contact with, and organic substance in oil smoke can so be sufficiently dissolved into organic solution.Then, pass through
Infrared irradiation solution measures optics difference of the solution before and after gas involvement, to compare out gas concentration respectively.But
Infrared method has the following disadvantages：1, organic solution belongs to hypertoxic liquid, inflammable, volatile, can generate play using liquid absorption method
Malicious waste liquid；2, it needs periodically to remove live Recycling of waste liquid, be used in this commercial environment, there is certain risk, and increase
Maintenance difficulties；3, very high to gas flow path requirement, accurate gas soakage, cost is also high；4, the single measurement time is longer, needs
It fully absorbs, the amount of gas inhalation is also larger.
2, using the oil smoke monitor of electrochemical principle
It is the most common electrochemistry semiconductor transducer using the oil smoke monitor of electrochemical principle, monitor can be using single
Or multiple electrochemistry semiconductor transducers, but sensor self character consistency is poor, and what is measured is the concentration value pinpointed,
It is big to there is substrate deviation, eventually leads to whole measured value and relatively large deviation occurs.
For example, number of patent application is 201710163834.8《Instrument is monitored online in cooking fume》, monitor use
Open type monitoring quantity space does not account for the influence such as air-flow, temperature, humidity.For air-flow, air-flow will affect gas and sense
The time adhered on device and reacted, accelerates evaporation, measured value is made to be lower.For temperature, electrochemistry needs to heat to make gas
Body and sensor itself chemically reactive, the non-constant linearity that will cause of temperature shift, and cause error.For humidity
Speech, vapor adhesion can make at once its output valve change on a sensor, regardless of whether there are organic gas.To sum up, oil smoke
The electrochemical means of gasmetry will solve the destructive interference of three of the above, just be able to achieve whole good linear.
Secondly, temperature is also an important factor for influencing semiconductor transducer measurement oil smoke concentration value, same sensor is not
Under synthermal, the value of measurement is also inconsistent.Due to existing each oil smoke probe be it is exposed in air, the temperature of each placement location
It spends different, the measurement of semiconductor transducer is caused to cause relatively large deviation.
3, using the oil smoke monitor of ultrasonic principle
Using the oil smoke monitor of ultrasonic principle, because oil smoke depends on above sensor, wavelength is too long, and reflecting effect is poor, also not
Concentration value can accurately be measured.
4, using the oil smoke monitor of radiation theory
Using the oil smoke monitor of radiation theory, without safety assurance, easy radiation leaks, poor safety performance, not environmentally.
Summary of the invention
To be solved by this invention is existing electrochemistry oil smoke monitor because the temperature of measurement position where semiconductor is different
Cause leads to the technical issues of measured deviation.
The technical solution adopted by the present invention：A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument, it is characterised in that including
Oil smoke suck unit, semiconductor transducer measuring unit, constant temperature chamber, data processing unit, oil smoke suck unit by tracheae with
The connection of constant temperature chamber, semiconductor transducer measuring unit are placed on that constant temperature is intracavitary, and constant temperature is intracavitary is equipped with Temperature Humidity Sensor, data
Processing unit sucks unit with oil smoke respectively and semiconductor transducer measuring unit is electrically connected, and oil smoke sucks unit will be extraneous to be measured
After the oil smoke of amount quantitatively sucks constant temperature chamber, constant temperature chamber carries out temperature control to the oil smoke of sucking, and the oil smoke of sucking is made to reach set temperature,
The semiconductor transducer measuring unit oil smoke intracavitary to constant temperature measures, and obtains the residue C of oil smoke concentration, data processing list
Member handles residue C to obtain the respective value of oil smoke concentration, and after measurement, oil smoke is discharged oil smoke sucking unit.
Advantages of the present invention：It is dense that this intelligence reverse-flow type oil smoke concentration on-line monitoring instrument can more accurately measure oil smoke
Angle value, avoid because the reason of external air flow, temperature, humidity lead to existing oil smoke monitor measured deviation the technical issues of.
Detailed description of the invention
Fig. 1 is the schematic diagram of electrochemistry semiconductor transducer sucking and evaporation.
Fig. 2 is a kind of schematic diagram of intelligent reverse-flow type oil smoke concentration on-line monitoring instrument.
Fig. 3 is the schematic diagram of data processing unit.
Specific embodiment
A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument, including oil smoke sucking unit, semiconductor transducer measurement list
Member, constant temperature chamber, data processing unit, oil smoke sucking unit are connect by tracheae with constant temperature chamber, semiconductor transducer measuring unit
It is intracavitary to be placed on constant temperature, constant temperature is intracavitary to be equipped with Temperature Humidity Sensor, and data processing unit sucks unit and half with oil smoke respectively
The electrical connection of conductor Sensor Measurement Unit, after extraneous oil smoke to be measured is quantitatively sucked constant temperature chamber by oil smoke sucking unit, constant temperature
Chamber carries out temperature control to the oil smoke of sucking, so that the oil smoke of sucking is reached set temperature, semiconductor transducer measuring unit is to constant temperature chamber
Interior oil smoke measures, and obtains the residue C of oil smoke concentration, and data processing unit is handled to obtain oil smoke to residue C
The respective value of concentration, after measurement, oil smoke is discharged oil smoke sucking unit.
Preferably, the intracavitary temperature preferable temperature of the constant temperature is a temperature between 40 DEG C -55 DEG C.
Preferably, the semiconductor transducer measuring unit is semiconductor sensor arrays, at the data processing unit
The residue C of reason is the residual average value that the semiconductor sensor arrays are measured。
Preferably, the data processing unit includes central processing unit, signal conditioning circuit, and semiconductor transducer measurement is single
Member, Temperature Humidity Sensor, oil smoke sucking unit are electrically connected with signal conditioning circuit respectively.
Preferably, the data processing unit can be connect with liquid crystal display, and the respective value of oil smoke concentration is shown in liquid crystal display
On.
Preferably, the data processing unit is connect with GPRS communication module, and the respective value of oil smoke concentration is uploaded to number
According to center.
Preferably, the data processing unit can be connect with SD card memory module, and the respective value of oil smoke concentration is stored in
In SD card.
Embodiment
Cause to measure to solve existing electrochemistry oil smoke monitor because the temperature of measurement position where semiconductor is inconsistent
The technical issues of deviation, this application discloses following technical solutions.
As shown in Figure 1, it is assumed that the pull-in value of semiconductor transducer measuring unit is A, evaporation number B, then residue is C
（Wherein C=A-B）, then the intelligence reverse-flow type oil smoke concentration on-line monitoring instrument use residue C as judge oil smoke concentration according to
According to.
As shown in Fig. 2, instrument is monitored online in a kind of intelligence reverse-flow type oil smoke concentration, it is characterised in that sucked including oil smoke single
Member, semiconductor transducer measuring unit, constant temperature chamber, data processing unit, oil smoke sucking unit are connect by tracheae with constant temperature chamber,
It is intracavitary that semiconductor transducer measuring unit is placed on constant temperature, and constant temperature is intracavitary to be equipped with Temperature Humidity Sensor, data processing unit point
Unit is not sucked with oil smoke and semiconductor transducer measuring unit is electrically connected, and oil smoke, which sucks unit, determines extraneous oil smoke to be measured
After amount sucking constant temperature chamber, constant temperature chamber carries out temperature control to the oil smoke of sucking, and the oil smoke of sucking is made to reach set temperature, semiconductor sensing
The device measuring unit oil smoke intracavitary to constant temperature measures, and obtains the residue C of oil smoke concentration, data processing unit is to residue
C is handled to obtain the respective value of oil smoke concentration, and after measurement, oil smoke is discharged oil smoke sucking unit.
After constant temperature chamber, air-flow will not be generated, to keep the residue C of measurement more accurate.
The temperature of constant temperature chamber is preferably a temperature between 40 DEG C -55 DEG C.The intelligence reverse-flow type oil smoke concentration is supervised online
When control instrument measures every time, temperature control value is adjusted according to environment temperature, is consistent temperature before and after entire measurement process, such as is extraneous
When environment temperature is 45 DEG C, temperature control program controls the temperature of constant temperature chamber at 50 DEG C.
Under conditions of airless and constant temperature and humidity, on the sensor surface, the amount of pull-in value A and evaporation number B will reach
It is balanced to one, the electric signal stability for exporting semiconductor transducer significantly improves.
For the technical problem for solving semiconductor transducer self character consistency difference, the application further discloses this and partly leads
Body sensor measuring unit is semiconductor sensor arrays, it is assumed that the number of sensors in the semiconductor sensor arrays is n,
Then the sucking average value of semiconductor transducer measuring unit is：
；
Evaporating average value is：
；
Remaining average value is：
。
As shown in figure 3, data processing unit includes central processing unit, signal conditioning circuit, semiconductor transducer measurement is single
Member, Temperature Humidity Sensor, oil smoke sucking unit are electrically connected with signal conditioning circuit respectively.Data processing unit can connect with liquid crystal display
It connects, the respective value of oil smoke concentration is shown on liquid crystal display.The data processing unit is connect with GPRS communication module, by oil smoke
The respective value of concentration uploads to data center.The data processing unit can be connect with SD card memory module, by oil smoke concentration
Respective value is stored in SD card.
Claims (7)
1. instrument is monitored online in a kind of intelligence reverse-flow type oil smoke concentration, it is characterised in that suck unit, semiconductor sensing including oil smoke
Device measuring unit, constant temperature chamber, data processing unit, oil smoke sucking unit are connect by tracheae with constant temperature chamber, semiconductor transducer
It is intracavitary that measuring unit is placed on constant temperature, and constant temperature is intracavitary to be equipped with Temperature Humidity Sensor, and data processing unit is sucked with oil smoke respectively
Unit and the electrical connection of semiconductor transducer measuring unit, oil smoke suck unit and extraneous oil smoke to be measured are quantitatively sucked constant temperature chamber
Afterwards, constant temperature chamber carries out temperature control to the oil smoke of sucking, and the oil smoke of sucking is made to reach set temperature, semiconductor transducer measuring unit pair
The intracavitary oil smoke of constant temperature measures, and obtains the residue C of oil smoke concentration, and data processing unit handle to residue C
To the respective value of oil smoke concentration, after measurement, oil smoke is discharged oil smoke sucking unit.
2. instrument is monitored online in a kind of intelligent reverse-flow type oil smoke concentration according to claim 1, it is characterised in that the constant temperature
Intracavitary temperature is a temperature between 40 DEG C -55 DEG C.
3. instrument is monitored online in a kind of intelligent reverse-flow type oil smoke concentration according to claim 1, it is characterised in that described partly to lead
Body sensor measuring unit is semiconductor sensor arrays, and the residue C of the data processing unit processing is semiconductor biography
The residual average value that sensor array is measured。
4. instrument is monitored online in a kind of intelligent reverse-flow type oil smoke concentration according to claim 1, it is characterised in that the data
Processing unit includes central processing unit, signal conditioning circuit, and semiconductor transducer measuring unit, Temperature Humidity Sensor, oil smoke are inhaled
Enter unit to be electrically connected with signal conditioning circuit respectively.
5. instrument is monitored online in a kind of intelligent reverse-flow type oil smoke concentration according to claim 4, it is characterised in that the data
Processing unit can be connect with liquid crystal display, and the respective value of oil smoke concentration is shown on liquid crystal display.
6. instrument is monitored online in a kind of intelligent reverse-flow type oil smoke concentration according to claim 4, it is characterised in that the data
Processing unit is connect with GPRS communication module, and the respective value of oil smoke concentration is uploaded to data center.
7. instrument is monitored online in a kind of intelligent reverse-flow type oil smoke concentration according to claim 4, it is characterised in that the data
Processing unit can be connect with SD card memory module, and the respective value of oil smoke concentration is stored in SD card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462391.9A CN108872331A (en) | 2017-12-28 | 2017-12-28 | A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462391.9A CN108872331A (en) | 2017-12-28 | 2017-12-28 | A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108872331A true CN108872331A (en) | 2018-11-23 |
Family
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|---|---|---|---|
| CN201711462391.9A Pending CN108872331A (en) | 2017-12-28 | 2017-12-28 | A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument |
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|---|---|---|---|---|
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-
2017
- 2017-12-28 CN CN201711462391.9A patent/CN108872331A/en active Pending
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