CN108333026A - A kind of modular portable air distributing device and its air distributing method compared for volatile organic gases online monitoring instruments - Google Patents
A kind of modular portable air distributing device and its air distributing method compared for volatile organic gases online monitoring instruments Download PDFInfo
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- CN108333026A CN108333026A CN201810285457.XA CN201810285457A CN108333026A CN 108333026 A CN108333026 A CN 108333026A CN 201810285457 A CN201810285457 A CN 201810285457A CN 108333026 A CN108333026 A CN 108333026A
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- 239000007789 gas Substances 0.000 title claims abstract description 255
- 238000012544 monitoring process Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004321 preservation Methods 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000013016 damping Methods 0.000 claims abstract description 30
- 238000005070 sampling Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 18
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 238000007689 inspection Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 150000001412 amines Chemical class 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- 150000002576 ketones Chemical class 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 238000012795 verification Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 229930195733 hydrocarbon Natural products 0.000 claims 1
- 230000032258 transport Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000012937 correction Methods 0.000 description 3
- 230000003694 hair properties Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Classifications
-
- 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
- G01N1/38—Diluting, dispersing or mixing samples
-
- 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
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
Abstract
The present invention provides a kind of modular portable air distributing device and its air distributing method compared for volatile organic gases online monitoring instruments, and the air distributing device includes the air outlet adapter in parallel of sample devices, sample introduction pipe fitting, the first damping coil pipe, heating equipment, temperature condition control device, the second damping coil pipe, heat preservation gas tank, pressure-detecting device, temperature-detecting device, display screen and multiple same fluid parameter attributes.Air distributing device of the present invention constitutes the portable Determination instrument system of volatile organic gases with multiple portable chromatographs, on-line chromatograph analyzer, on-the-spot testing monitoring can be carried out to volatile organic gases, without sample pneumatic transmission is gone to laboratory, the influence of sampling and circular flow to sample gas condition is avoided；Sample gas is heated, is kept the temperature, homogeneous shunting, the condition of tested gas can be kept, it is ensured that is assigned the authenticity of the roads Hou Ge gas, homogenieity ensures that volatile organic gases online monitoring instruments compare the correctness checked and accepted.
Description
Technical field
The invention belongs to gas detection technology fields, more particularly to a kind of to be used for volatile organic gases online monitoring instruments
The modular portable air distributing device and its air distributing method of comparison.
Background technology
Comparison for volatile organic gases online monitoring instruments or Acceptance Monitoring, usually with sampling digital tank or gas
Bag method is sampled sample gas (or standard gas), is then sent to related assays room within a certain period of time and manually or automatically samples sample introduction
Data are obtained by the chromatograph in laboratory afterwards, third party's examining report is provided after audit, is existed in this, as to scene
The qualified or not foundation of line monitoring instrument.
Since volatile organic gases is various in style, characteristic is complicated, the time of sampling, temperature, pressure, characterization factor type
The consistency that sample gas in airbag carries out state with online monitoring instruments will be influenced, to ensure that Inter-laboratory comparisons are analyzed
Be consistent when being sampled with online monitoring instruments to decent gas condition.The standard gas of live online monitoring instruments compares part, by
In the quality difference for configuring pressure reducing valve on industrial standard gas bottle, output standard gas pressure is caused to have fluctuation, so that airbag method is adopted
The molar concentration of the volatile organic gases sample gas of collection is variant, differs with the collected standard gas condition of online monitoring instruments
It causes；For sample gas, there is also same problem, the ingredient in sample gas is more complicated, influences bigger for airbag sampling；Standard gas and sample gas
Gas production bag enters laboratory through spot sampling, other than it experienced the influence of variation of ambient temperature, turnaround time and airbag quality,
Also need to input laboratory chromatographic analyzer after the double sampling of laboratory, laboratory is analyzed at this time sample gas or standard gas with adopted at that time
The condition difference bigger of sample gas or standard gas when sample.
Invention content
The present invention provides a kind of modular portable air distributing device, with multiple portable chromatographs, on-line chromatograph point
Analyzer constitutes the portable Determination instrument system of volatile organic gases, can carry out on-the-spot testing prison to volatile organic gases
It surveys, without sample pneumatic transmission is gone to laboratory, avoids the influence of sampling and circular flow to sample gas condition；Sample gas is heated,
Heat preservation, homogeneous shunting, can keep the condition of tested gas, it is ensured that be assigned the authenticity of the roads Hou Ge gas, homogenieity ensures to wave
Hair property organic gas online monitoring instruments compare the correctness checked and accepted.
The present invention is specially a kind of modular portable distribution compared for volatile organic gases online monitoring instruments
Device, the modular portable air distributing device include sample devices, sample introduction pipe fitting, the first damping coil pipe, heating equipment, temperature
Spend condition controlling device, the second damping coil pipe, heat preservation gas tank, pressure-detecting device, temperature-detecting device, display screen and multiple
Air outlet adapter, the sample devices, sample introduction pipe fitting, the first damping coil pipe, heating equipment, the second damping coil pipe, heat preservation gas tank
It is linked in sequence successively, the temperature condition control device is connected to the heating equipment, and the heat preservation gas tank is also connected to described
Pressure-detecting device and the temperature-detecting device, the pressure-detecting device and the temperature-detecting device are all connected to described
Display screen；It is that buffering is equal that the heat preservation gas tank, which has in parallel and equivalent fluid characteristic multiple air outlet adapters, the heat preservation gas tank,
Matter gas tank；The sample devices is sampled volatile organic gases sample gas, the sample gas sampled by sample introduction pipe fitting,
Damping coil pipe and heating equipment are transferred to heat preservation gas tank and carry out that storage is gentle to reconstitute section；The temperature condition control device is to sample gas
Heating temperature is controlled, and determines the heating temperature range of heating equipment, the heating equipment is according to the temperature of setting to sample gas
It is heated；The pressure-detecting device is detected the pressure of volatile organic gases in heat preservation gas tank and passes through display screen
It is shown, the temperature-detecting device is detected the temperature of volatile organic gases in heat preservation gas tank and passes through display screen
It is shown.
Further, glass fibre or asbestos are enclosed on the outside of the damping coil pipe, keep the state for being tested gas, it is ensured that
The authenticity of assigned gas pressure, temperature.
Further, the material of the heat preservation gas tank is stainless steel or copper, and inner wall carries out processing of deactivating.
Further, the heat preservation gas tank inner wall is coated with heat insulation coating, be also coated with outside heat insulation coating do not adsorb it is organic
The PTF coatings or polytetrafluoro of object deactivate coating.
Further, it is dismountable between the modules of the modular portable air distributing device, when distribution fills
When setting failure, modules can be disassembled respectively and be detected and repair.
Further, the portable air distributing device constitutes volatile organic gases just with multiple portable chromatographs
It takes formula detection and compares instrument, the sample gas in the heat preservation gas tank is connected to multiple portable colors by the air outlet adapter of multiple parallel connections
Spectrum analysis instrument, by multiple chromatographs respectively in sample gas hydrocarbon compound, benzene homologues, organic chloride, organic ketone,
Amine, alcohol, the ether various features factor are detected, the gas componant and volatile organic gases that the chromatograph is detected
The gas componant that online monitoring instruments detect carries out parallel comparison, determines whether volatile organic gases online monitoring instruments close
Lattice.
Further, the volatile organic calibrating gas of the standard feature factor is defeated respectively under same gas parameter state
To online volatile organic gases monitoring instrument, portable volatile organic gases monitoring instrument, the organic gas of laboratory volatility
The sampling device of body monitoring instrument makes the inspection result between them have comparable to carrying out parallel Determination with equally gas
Property, trackability, to verify the accuracy of online monitoring instruments.
The invention also includes a kind of modular portable distributions compared for volatile organic gases online monitoring instruments
The air distributing method of device, the air distributing method are as follows：
Step (1) samples volatile organic gases sample gas by sample devices；
Step (2), collected sample gas are transported to the second damping coil pipe by sample introduction pipe fitting, the first damping coil pipe, subtract
Sample gaseity is unstable caused by low sample gas air pressure is uneven, it is ensured that authenticity, stability before and after assigned gas sampling；
Sample gas heating temperature range is arranged according to detection demand in step (3), temperature condition control device；
Step (4), heating equipment carry out heating and thermal insulation according to the temperature of setting to sample gas；
Sample gas after step (5), heating is transferred to heat preservation gas tank, the second damping coil pipe pair by the second damping coil pipe
Sample gas after heating is kept the temperature, it is ensured that is assigned gas pressure, the authenticity of state of temperature, stability；
Step (6), heat preservation gas tank inner wall deactivate processing, are kept the temperature to sample gas, adjust homogeneous, transfer and homogeneous multichannel
Output；
Step (7), pressure-detecting device are detected the volatile organic gases pressure in heat preservation gas tank and will detections
As a result it is transmitted to display screen, temperature-detecting device is detected the volatile organic gases temperature in heat preservation gas tank and will detection
As a result it is transmitted to display screen；
Step (8), display screen carry out real-time display to the heat preservation gas tank pressure, the temperature conditions that receive；
Sample gas in step (9), heat preservation gas tank is passed respectively by the multiple same characteristic of fluid outlet pipes being arranged on gas tank
It is defeated to arrive multiple portable or desk-top chromatograph or on-line chromatograph analyzer, by multiple chromatographs respectively in sample gas
Hydrocarbon compound, benzene homologues, sulfide, organic chloride, organic ketone, amine, alcohol, the ether multiclass feature factor inspection is compared
It surveys.
Further, the method further include by volatile organic gases ingredient that the chromatograph detects with wave
The volatile organic gases ingredient that hair property organic gas online monitoring instruments detect carries out parallel comparison, determines that volatility is organic
Whether gas on-line monitor device is qualified.
Further, the method further includes joining the volatile organic calibrating gas of the standard feature factor in same gas
Online volatile organic gases monitoring instrument, portable volatile organic gases monitoring instrument, experiment are transported under number state respectively
The sampling device of room volatile organic gases monitoring instrument, carries out parallel comparison and verification, and the inspection result between them is made to have
There are comparativity, trackability.
Description of the drawings
Fig. 1 is the modular portable air distributing device that the present invention is compared for volatile organic gases online monitoring instruments
Module connection figure.
Specific implementation mode
Below in conjunction with the accompanying drawings just to a kind of modularization for the comparison of volatile organic gases online monitoring instruments of the invention
The specific implementation mode for taking formula air distributing device elaborates.
As shown in Figure 1, modular portable air distributing device includes sample devices, sample introduction pipe fitting, the first damping coil pipe, adds
Hot equipment, temperature condition control device, the second damping coil pipe, heat preservation gas tank, pressure-detecting device, temperature-detecting device, display
Screen and multiple air outlet adapters, the sample devices, sample introduction pipe fitting, the first damping coil pipe, heating equipment, the second dampened disk
Pipe, heat preservation gas tank are linked in sequence successively, and the temperature condition control device is connected to the heating equipment, and the heat preservation gas tank is also
It is connected to the pressure-detecting device and the temperature-detecting device, the pressure-detecting device and the temperature-detecting device are equal
It is connected to the display screen；The heat preservation gas tank has in parallel and equivalent fluid characteristic multiple air outlet adapters, the heat preservation gas
Tank is buffering homogeneous gas tank；The sample devices is sampled volatile organic gases sample gas, and the sample gas sampled passes through
Sample introduction pipe fitting, damping coil pipe and heating equipment are transferred to heat preservation gas tank and are stored；The temperature condition control device is to sample
Gas heating temperature is controlled, and determines the heating temperature range of heating equipment, the heating equipment is according to the temperature of setting to sample
Gas is heated；The pressure-detecting device is detected the pressure of volatile organic gases in heat preservation gas tank and passes through display
Screen is shown that the temperature-detecting device is detected the temperature of volatile organic gases in heat preservation gas tank and passes through display
Screen is shown.
It is enclosed with glass fibre or asbestos on the outside of the damping coil pipe, keeps the state for being tested gas, it is ensured that be assigned gas
Body pressure, the authenticity of temperature.
The material of the heat preservation gas tank is stainless steel or copper.
The heat preservation gas tank inner wall is coated with heat insulation coating, and the PTF paintings for not adsorbing organic matter are also coated with outside heat insulation coating
Layer or polytetrafluoro are deactivated coating.
It is dismountable between the modules of the modular portable air distributing device, when air distributing device breaks down
When, modules can be disassembled respectively and be detected and repair.
The portable air distributing device constitutes volatile organic gases portable inspectiont with multiple portable chromatographs
Instrument, the sample gas kept the temperature in gas tank are connected to multiple portable chromatographs by the air outlet adapter of multiple parallel connections, lead to
It is more to hydrocarbon compound, benzene homologues, organic chloride, organic ketone, amine, alcohol, the ether in sample gas respectively to cross multiple chromatographs
Kind characterization factor is detected, the gas componant that the chromatograph is detected and volatile organic gases on-line computing model
The gas componant that device detects carries out parallel comparison, determines whether volatile organic gases online monitoring instruments are qualified.
The volatile organic calibrating gas of the standard feature factor is transported to respectively under same gas parameter state and is waved online
Hair property organic gas monitoring instrument, portable volatile organic gases monitoring instrument, laboratory volatile organic gases monitor
The sampling device of device carries out parallel comparison and verification, so that the inspection result between them is comparable, trackability.
A kind of distribution side of the modular portable air distributing device compared for volatile organic gases online monitoring instruments
Method, the air distributing method are as follows：
Step (1) samples volatile organic gases sample gas by sample devices；
Step (2), collected sample gas are transported to heating equipment by sample introduction pipe fitting, the first damping coil pipe, and described the
One damping coil pipe keeps the temperature sample gas, it is ensured that is assigned the authenticity of gas；
Sample gas heating temperature range is arranged according to detection demand in step (3), temperature condition control device；
Step (4), heating equipment heat sample gas according to the temperature of setting；
Sample gas after step (5), heating is transferred to heat preservation gas tank, the second damping coil pipe pair by the second damping coil pipe
Sample gas after heating is kept the temperature, it is ensured that is assigned the authenticity of gas pressure, state of temperature；
Step (6), heat preservation gas tank inner wall deactivate, and are kept the temperature to sample gas, transfer and storage；
Step (7), pressure-detecting device are detected the volatile organic gases pressure in heat preservation gas tank and will detections
As a result it is transmitted to display screen, temperature-detecting device is detected the volatile organic gases temperature in heat preservation gas tank and will detection
As a result it is transmitted to display screen；
Step (8), display screen carry out real-time display to the heat preservation gas tank pressure, the temperature conditions that receive；
Step (9), heat preservation gas tank in sample aerial root according to detection need by multiple air outlet adapters be respectively transmitted to it is multiple just
Take formula chromatograph, by multiple chromatographs respectively in sample gas hydrocarbon compound, benzene homologues, organic chloride,
Organic ketone, amine, alcohol, the ether multiclass feature factor are detected.
The method further includes that the volatile organic gases ingredient for detecting the chromatograph and volatility are organic
The volatile organic gases ingredient that gas on-line monitor device detects carries out parallel comparison, determines that volatile organic gases is online
Whether monitoring instrument is qualified.
The method further include by the volatile organic calibrating gas of the standard feature factor under same gas parameter state
Online volatile organic gases monitoring instrument, portable volatile organic gases monitoring instrument, laboratory volatility are transported to respectively
The sampling device of organic gas monitoring instrument carries out parallel comparison and verification, the inspection result between them is made to be comparable,
Trackability.
Laboratory chromatographic analytical instrument and portable chromatograph are compared, are verified for the parallel of standard gas between each other：
Air distributing device inlet suction port is connected with standard gas bottle pressure reducing valve, multiple outlets are connected with laboratory chromatographic import respectively, then
Each instrument is opened simultaneously, gas sample is analyzed, according to collection of illustrative plates check and correction parallel with monitoring data progress；It can be used for laboratory above
Parallel comparison between instrument and portable instrument.
Comparison between portable instrument and online monitoring instruments：By air distributing device inlet suction port and online monitoring instruments
Sampling pipe is connected, and multiple outlets are connected with online monitoring instruments import and portable instrument respectively, then opens each instrument simultaneously
Device analyzes gas sample, according to collection of illustrative plates check and correction parallel with monitoring data progress；Air distributing device inlet suction port and standard gas bottle are subtracted
Pressure valve is connected, and multiple outlets are connected with online monitoring instruments import and portable instrument respectively, then opens each instrument simultaneously,
Standard gas sample is analyzed, according to collection of illustrative plates check and correction parallel with monitoring data progress.Can be used for above online monitoring instruments with it is portable
The parallel comparison of standard gas and the examination of sample gas compare between formula instrument.
Finally it should be noted that only illustrating technical scheme of the present invention rather than its limitations in conjunction with above-described embodiment.Institute
The those of ordinary skill in category field is it is to be understood that those skilled in the art can repair the specific implementation mode of the present invention
Change or equivalent replacement, but these modifications or change are among applying for pending claims.
Claims (10)
1. a kind of modular portable air distributing device compared for volatile organic gases online monitoring instruments, feature exist
In the modular portable air distributing device includes sample devices, sample introduction pipe fitting, the first damping coil pipe, heating equipment, temperature
Condition controlling device, second damping coil pipe, heat preservation gas tank, pressure-detecting device, temperature-detecting device, display screen and it is multiple go out
Gas connector, the sample devices, sample introduction pipe fitting, first damping coil pipe, heating equipment, second damping coil pipe, heat preservation gas tank according to
Secondary to be linked in sequence, the temperature condition control device is connected to the heating equipment, and the heat preservation gas tank is also connected to the pressure
Force checking device and the temperature-detecting device, the pressure-detecting device and the temperature-detecting device are all connected to described aobvious
Display screen；It is buffering homogeneous that the heat preservation gas tank, which has in parallel and equivalent fluid characteristic multiple air outlet adapters, the heat preservation gas tank,
Gas tank；The sample devices is sampled volatile organic gases sample gas, and the sample gas sampled passes through sample introduction pipe fitting, resistance
Buddhist nun's coil pipe and heating equipment are transferred to heat preservation gas tank and carry out that storage is gentle to reconstitute section；The temperature condition control device adds sample gas
Hot temperature is controlled, and determines the heating temperature range of heating equipment, the heating equipment according to the temperature of setting to sample gas into
Row heating；The pressure-detecting device to heat preservation gas tank in volatile organic gases pressure be detected and by display screen into
Row display, the temperature-detecting device to heat preservation gas tank in volatile organic gases temperature be detected and by display screen into
Row display.
2. a kind of modular portable compared for volatile organic gases online monitoring instruments according to claim 1
Air distributing device, which is characterized in that it is enclosed with glass fibre or asbestos on the outside of the damping coil pipe, keeps the state for being tested gas,
Ensure be assigned gas pressure, temperature authenticity.
3. a kind of modular portable compared for volatile organic gases online monitoring instruments according to claim 2
Air distributing device, which is characterized in that the material of the heat preservation gas tank is stainless steel or copper, and inner wall carries out processing of deactivating.
4. a kind of modular portable compared for volatile organic gases online monitoring instruments according to claim 3
Air distributing device, which is characterized in that the heat preservation gas tank inner wall is coated with heat insulation coating, is also coated with outside heat insulation coating and is not adsorbed with
The PTF coatings or polytetrafluoro of machine object deactivate coating.
5. a kind of modular portable compared for volatile organic gases online monitoring instruments according to claim 4
Air distributing device, which is characterized in that be dismountable between the modules of the modular portable air distributing device, work as distribution
When device breaks down, modules can be disassembled respectively and be detected and repair.
6. a kind of modular portable compared for volatile organic gases online monitoring instruments according to claim 1
Air distributing device, which is characterized in that the portable air distributing device constitutes the organic gas of volatility with multiple portable chromatographs
Body portable inspectiont compares instrument, and the sample gas in the heat preservation gas tank is connected to multiple portable by the air outlet adapter of multiple parallel connections
Formula chromatograph, by multiple chromatographs respectively in sample gas hydrocarbon compound, benzene homologues, organic chloride, have
Machine ketone, amine, alcohol, the ether various features factor are detected, and gas componant and volatility that the chromatograph detects are had
The gas componant that machine gas on-line monitor device detects carries out parallel comparison, determines volatile organic gases online monitoring instruments
It is whether qualified.
7. a kind of modular portable compared for volatile organic gases online monitoring instruments according to claim 1
Air distributing device, which is characterized in that divide the volatile organic calibrating gas of the standard feature factor under same gas parameter state
Not transporting to online volatile organic gases monitoring instrument, portable volatile organic gases monitoring instrument, laboratory volatility has
The sampling device of machine gas-monitoring instrument makes the inspection result between them have to carrying out parallel Determination with equally gas
Comparativity, trackability, to verify the accuracy of online monitoring instruments.
8. a kind of mould compared for volatile organic gases online monitoring instruments according to any one of claim 1-7
The air distributing method of the portable air distributing device of blockization, which is characterized in that the air distributing method is as follows：
Step (1) samples volatile organic gases sample gas by sample devices；
Step (2), collected sample gas are transported to the second damping coil pipe by sample introduction pipe fitting, the first damping coil pipe, lower sample
Sample gaseity is unstable caused by gas air pressure is uneven, it is ensured that authenticity, stability before and after assigned gas sampling；
Sample gas heating temperature range is arranged according to detection demand in step (3), temperature condition control device；
Step (4), heating equipment carry out heating and thermal insulation according to the temperature of setting to sample gas；
Sample gas after step (5), heating is transferred to heat preservation gas tank by the second damping coil pipe, and the second damping coil pipe is to heating
Sample gas afterwards is kept the temperature, it is ensured that is assigned gas pressure, the authenticity of state of temperature, stability；
Step (6), heat preservation gas tank inner wall deactivate processing, are kept the temperature to sample gas, to adjust homogeneous, transfer and homogeneous multichannel defeated
Go out；
Step (7), pressure-detecting device are detected and by testing result the volatile organic gases pressure in heat preservation gas tank
It is transmitted to display screen, temperature-detecting device is detected the volatile organic gases temperature in heat preservation gas tank and by testing result
It is transmitted to display screen；
Step (8), display screen carry out real-time display to the heat preservation gas tank pressure, the temperature conditions that receive；
Sample gas in step (9), heat preservation gas tank is respectively transmitted to by the multiple same characteristic of fluid outlet pipes being arranged on gas tank
Multiple portable or desk-top chromatograph or on-line chromatograph analyzer, by multiple chromatographs respectively to the hydrocarbon in sample gas
Detection is compared in class compound, benzene homologues, sulfide, organic chloride, organic ketone, amine, alcohol, the ether multiclass feature factor.
9. air distributing method according to claim 8, which is characterized in that the method further includes examining the chromatograph
The volatile organic gases that the volatile organic gases ingredient that measures is detected with volatile organic gases online monitoring instruments at
Divide and carry out parallel comparison, determines whether volatile organic gases online monitoring instruments are qualified.
10. air distributing method according to claim 8, which is characterized in that the method further includes by the standard feature factor
Volatile organic calibrating gas transports to online volatile organic gases monitoring instrument, portable respectively under same gas parameter state
The sampling device of formula volatile organic gases monitoring instrument, laboratory volatile organic gases monitoring instrument, carries out parallel comparison
And verification, so that the inspection result between them is comparable, trackability.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810285457.XA CN108333026A (en) | 2018-04-03 | 2018-04-03 | A kind of modular portable air distributing device and its air distributing method compared for volatile organic gases online monitoring instruments |
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| CN201810285457.XA CN108333026A (en) | 2018-04-03 | 2018-04-03 | A kind of modular portable air distributing device and its air distributing method compared for volatile organic gases online monitoring instruments |
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| CN108333026A true CN108333026A (en) | 2018-07-27 |
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