CN206161483U - Organic carbon element carbon on line analyzer of heat light method - Google Patents
Organic carbon element carbon on line analyzer of heat light method Download PDFInfo
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- CN206161483U CN206161483U CN201621258665.3U CN201621258665U CN206161483U CN 206161483 U CN206161483 U CN 206161483U CN 201621258665 U CN201621258665 U CN 201621258665U CN 206161483 U CN206161483 U CN 206161483U
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- reacting furnace
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Abstract
The utility model discloses an organic carbon element carbon on line analyzer of heat light method, including instrument protecting sheathing, be equipped with laser assembly, carrier gas pipeline, air business turn over pipeline and furnace body in the instrument protecting sheathing, the furnace body includes reacting furnace and oxidation furnace, reacting furnace and oxidation furnace formula structure as an organic whole. The OCEC monitor is rather than sampling system under unified use, can realize random time length PM2.5 particulate matter and collect, and carry out organic carbon (OC) concentration numerical value in the analysis particulate matter through the light and heat method, element carbon (EC) concentration numerical value, total carbon (TC) concentration numerical value, while the system uses the epimembranal particulate matter absorbance of laser monitoring sample to change, still can obtain the light organic carbon of method (OC) concentration numerical value and element carbon (EC) concentration numerical value, the system uses the ration ring to carry out the normalization processing to all data, reduce system error, improve data reliability.
Description
Technical field
The utility model is related to environment measuring instrument technical field, more particularly to a kind of thermophotometry organic carbon elemental carbon is online
Analyzer.
Background technology
Atmospheric aerosol is suspended in the general name of the solid-state in air and liquid particles thing, the carbonaceous group in atmospheric aerosol
Divide and generally account for the 10～70% of Fine Particles mass concentration, be the important composition composition of Fine Particles.It is big that it can be divided into 3
Class：Organic carbon OC, elemental carbon EC and carbonic acid carbon CC.
At present more and more people all think EC for global warming effect clearly, EC can be absorbed from infrared to purple
Outer full wave light, accelerates the earth to heat up, and EC can deepen the color of particulate matter, make some originally to radiation without absorbing or
Person absorbs less material also can produce absorption to light, increased the Radiative Forcing of particulate matter, reduce atmospheric visibility.Gas is molten
OC in glue also can play scattering process to light, greatly have impact on the visibility of regional atmospheric.The main constituents of PM2.5 it
Once organic carbon OC and elemental carbon EC.
Because the atmospheric aerosol carbonaceous components overwhelming majority is present in fine particle (0.1～1 μm), it is thus possible to be easy to
The lung of human body is entered by the respiration of human body, destruction changes the 26S Proteasome Structure and Function of lung, causes chronic respiratory disease, very
The structure of DNA can extremely be changed.
Because in atmospheric aerosol carbonaceous components destruction radiation balance of earth, affect global climate, reduce city visibility,
Harm human health, is the primary study content in atmospheric aerosol field, it has also become the focus of current environmental monitoring.
At present, to the research of atmospheric aerosol carbonaceous components (OC/EC), mainly using two methods：Film sampling+offline point
Analysis and online OC/EC monitorings.But, the data time resolution ratio obtained by traditional film sampling+off-line analysis method is low,
It is difficult to reflect the information of characteristics of atmospheric aerosol change in the short period, and is readily incorporated artificial disturbance, hence with online
OC/EC analyzers become the trend of application.
But online OC/EC analyzers is relatively costly, it is difficult to carry out popularization and application at home, therefore, in order to more
Well, Monitoring Data is more easily obtained, more clearly understands the pollution situation of China's aerosol, be control atmosphere pollution, change
Kind air quality provides support, in the urgent need to a kind of suitable China's aerosol monitoring and the on-line analysis system of research.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of low cost, it is to avoid sample is in heating volatilization process
Loss, can completely detect sample, reduce systematic error, improve a kind of organic carbon of thermophotometry of data reliability
Carbon in-line analyzer.
To solve above-mentioned technical problem, technical solution adopted in the utility model is：
A kind of thermophotometry organic carbon elemental carbon in-line analyzer, including protection of instrumentation shell, protection of instrumentation inside the shell is provided with
Laser module, carrier gas channel, air inlet and outlet piping and body of heater, the outer wall of the protection of instrumentation shell is provided with multiple external connection ends
Mouthful, external-connected port includes air intlet and air outlet slit, it is characterised in that：The body of heater includes reacting furnace and oxidation furnace, described
Reacting furnace and oxidation furnace are integral type structure, located at body of heater inside the shell, insulated wall are provided between reacting furnace and oxidation furnace, are incubated
Body of heater shell inner cavity is divided into two chambers by wall, and reacting furnace is vertically arranged with insulated wall, and oxidation furnace be arranged in parallel with insulated wall, instead
The postmedian of stove and the front end UNICOM of oxidation furnace, the rear end and front end of reacting furnace is answered to all extend to outside body of heater shell；The laser
Component includes generating laser, photoelectric detector, sealing optical window and quartz filter, and the generating laser is after reacting furnace
End is outer, and photoelectric detector is sealed in rear end of the optical window located at reacting furnace with oxidation furnace UNICOM, sealing outside the front end of reacting furnace
The rear end of reacting furnace and oxidation furnace UNICOM is intercepted into enclosed construction by optical window, and quartz filter is in reacting furnace front end；It is described
Air inlet and outlet piping includes air inlet pipe and escaping pipe, air inlet pipe one end connection air intlet, the entrance of other end coupled reaction stove,
The air inlet pipe is provided with sampling valve；Described escaping pipe one end connects air outlet slit, other end connection isolating valve, the isolating valve
Connection valve road switched system, escaping pipe is provided with sampling flow transducer and sample streams control valve；The carrier gas channel includes
Carrier gas air inlet pipe, carrier gas air inlet pipe one end coupled reaction stove is integral type structure with reacting furnace, and other end connection valve road is cut
System is changed, the carrier gas air inlet on the reacting furnace is located at quartz filter rear；The outlet connecting detection device of the oxidation furnace.
Further technical scheme is：The body of heater side is provided with blower fan.
Further technical scheme is：The quartz filter is arranged in reacting furnace by quartz ampoule.
Further technical scheme is：The carrier gas air inlet pipe is provided with temperature and surveys joint with reacting furnace junction, and temperature is surveyed and connect
Head is provided with temperature sensor.
Further technical scheme is：The body of heater outer casing inner wall is provided with heat-insulation layer.
Further technical scheme is：The oxidation furnace is 4 with reacting furnace intracavity diameter ratio：3, oxidation furnace place chamber
It is 1 with the depth ratio of reacting furnace place chamber：1.
Further technical scheme is：Pipeline between the oxidation furnace and detector is provided with detector control valve.
Further technical scheme is：The outlet of the oxidation furnace connects sample breather pipe, sample ventilation by joint
Pipe connecting detection device.
Further technical scheme is：Valve road switched system includes carrying gas control valve, demarcates gas control valve, oxygen
Control valve.
It is using the beneficial effect produced by above-mentioned technical proposal：
OC/EC monitors are used in conjunction with its sampling system, are capable of achieving random time length PM2.5 particulate collection, and
Organic carbon in particulate matter (OC) concentration values, elemental carbon (EC) concentration values, total carbon (TC) concentration are analyzed by photo-thermal method
Numerical value, simultaneity factor can also obtain light method organic carbon (OC) concentration using particulate matter absorbance change on laser monitoring sample film
Numerical value and elemental carbon (EC) concentration values.System is normalized using quantitative loop to all data, reduces systematic error,
Data reliability is improved, its numerical value can be used in conjunction with other Monitoring Datas, carry out PM2.5 environmental monitoring pollution sources data source solutions
Analysis, also can be connected with other systems, for carbon analysis.
And reacting furnace is located at integrative-structure, it is to avoid loss of the sample in heating volatilization process, can completely detect
To sample, systematic error is reduced, improve data reliability.Monitoring Data can preferably, be more easily obtained, more clearly
The pollution situation of solution China aerosol, for control atmosphere pollution, improves air quality and provides support.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the cross-sectional view that the utility model protects shell.
Specific embodiment
With reference to the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be different from alternate manner described here to implement using other, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case of new intension, therefore the utility model is not limited by following public specific embodiment.
As illustrated in fig. 1 and 2, a kind of thermophotometry organic carbon elemental carbon in-line analyzer, including protection of instrumentation shell 100, instrument
Laser module, carrier gas channel, air inlet and outlet piping and body of heater 10, the protection of instrumentation shell 100 are provided with device protection shell 100
Outer wall be provided with multiple external-connected ports, external-connected port includes air intlet and air outlet slit, and the body of heater 10 includes reacting furnace
11 and oxidation furnace 12, the reacting furnace 11 and oxidation furnace 12 are integral type structure, located at body of heater inside the shell, reacting furnace 11 and oxygen
Change and insulated wall 16 is provided between stove 12, body of heater shell inner cavity is divided into two chambers, reacting furnace 11 and insulated wall 16 by insulated wall 16
It is vertically arranged, oxidation furnace 12 be arranged in parallel with insulated wall 16, the postmedian of reacting furnace 11 and the front end UNICOM of oxidation furnace 12, reaction
The rear end and front end of stove 11 is all extended to outside body of heater shell；The laser module include generating laser 41, photoelectric detector 42,
Sealing optical window 43 and quartz filter, outside the rear end of reacting furnace 11, photoelectric detector 42 is located at anti-for the generating laser 41
Answer outside the front end of stove 11, seal in rear end of the optical window 43 located at reacting furnace 11 with the UNICOM of oxidation furnace 12, sealing optical window 43 will react
Stove 11 intercepts into enclosed construction with the rear end of the UNICOM of oxidation furnace 12, and quartz filter is in the front end of reacting furnace 11；The air
Inlet and outlet piping includes air inlet pipe 21 and escaping pipe, the one end of air inlet pipe 21 connection air intlet, and other end coupled reaction stove 11 enters
Mouthful, the air inlet pipe 21 is provided with sampling valve 22；Described escaping pipe one end connects air outlet slit, and the other end connects isolating valve 31,
The connection valve road switched system 70 of the isolating valve 31, escaping pipe is provided with sampling flow transducer 32 and sample streams control valve
33；The carrier gas channel includes carrier gas air inlet pipe, and carrier gas air inlet pipe one end coupled reaction stove 11 is integrated with reacting furnace 11
Formula structure, other end connection valve road switched system 70, the carrier gas air inlet on the reacting furnace 11 is located at quartz filter rear；Institute
State the outlet connecting detection device 200 of oxidation furnace 12.Reacting furnace 11, oxidation furnace 12 and carrier gas air inlet pipe are quartz ampoule, and carrier gas is entered
Tracheae has made an entirety with reacting furnace 11 by way of heat fusion, and sealing optical window 43 is identical with quartz ampoule material.
Wherein, the side of body of heater 10 is provided with blower fan 60, and all-in-one oven is lowered the temperature, and blower fan 60 includes fan and drives fan rotation
The motor for turning.
Quartz filter is pushed in reacting furnace 11 by quartz ampoule 23, until the stepped locations arranged in reacting furnace, so
Teflon ferrule fitting sealed silica envelope is used afterwards.Quartz filter repeated multiple times can be used, and can be entered by dismounting quartz ampoule 23
Row is changed.
Carrier gas air inlet pipe is provided with temperature and surveys joint 14 with the junction of reacting furnace 11, and temperature surveys joint 14 and is provided with temperature sensor,
Temperature sensor is used for real-time monitoring sample film temperature, so as to control the accurate temperature of each gradient of heating schedule.
Oxidation furnace 12 is 4 with the intracavity diameter ratio of reacting furnace 11：3, the place chamber of oxidation furnace 12 and the place chamber of reacting furnace 11
Depth ratio be 1：1.
Pipeline between oxidation furnace 12 and detector is provided with detector control valve 15, and the outlet of oxidation furnace 12 passes through joint
13 connection sample breather pipes, sample breather pipe connecting detection device 200.
Valve road switched system 70 include carry gas control valve, demarcate gas control valve, oxygen control valve, carrier gas control solenoid,
First demarcates gas solenoid, the second demarcation gas solenoid and forehearth solenoid.
The course of work of the present utility model is divided into sampling and analyzes two parts.
Sampling：Sample gas is entered by entrance, by sampling valve 22, through reacting furnace 11, by the quartz filter in reacting furnace 11
Particulate matter in sample gas is caught, gas flows through isolating valve 31 subsequently by valve road switched system 70, then is passed by sampling flow
Sensor 32 and sample streams control valve 33 flow out.Gas when sampling flow transducer 32 and the control sampling of sample streams control valve 33
Body flow.
During analysis：Sampling valve 22 is closed, the control heating of reacting furnace start program, while each road-load gas is by valve road switching system
System 70 is passed through reacting furnace, and the OC and EC in particulate matter is changed into respectively into detectable gas CO2, flow out from oxidation furnace 12, flow through
Detector controls valve 15, enters into detector and is analyzed.
During sampling and analysis, optical detection is carried out.Wherein generating laser 41 sends ruddiness, by reacting furnace
11 and quartz filter after by photoelectric detector 42 receive switch to this signal of electric signal mainly for detection of particulate matter on filter membrane suction
Luminosity, the higher explanation absorbance of signal is less, and the carbon content of filter membrane is lower；The lower explanation carbon content of signal is higher.Also use in addition
This signal determines the cut-point of organic carbon and elemental carbon.
Operation principle of the present utility model is that the quartz filter of collection particulate matter is put into into quartzy stove (quartz oven)
In, gradually heat up in non-oxide (He) environment of helium, cause OC to be heated volatilization (also has part OC by carbon during being somebody's turn to do
Change)；Hereafter sample is in helium/oxygen mixture (He/O2) gradually heat up in environment, should during EC be oxidized and be decomposed into gaseous state
Oxide.Produced analyte is all quantitatively examined as carrier gas flow to non-dispersion infrared detector (NDIR) in the two steps
Survey.Quantitative He/CH is added after sample analysis are completed4Gas is calibrated, quantitative He/CH4It is for calibrating, i.e., much
Signal peak correspondence how many carbon contents, so as to obtain the carbon content on sample filter membrane.There is beam of laser to impinge upon in whole process
On quartz film, laser center wavelength 660nm, the intensity of the transmitted light (or reflected light) of the laser can be gradually so when OC is carbonized
Weaken, and He/O is switched in He2Heat simultaneously, with carbonization and the transmitted light (or reflected light) of the oxidation Decomposition of the EC laser
Can gradually strengthen.When the intensity of transmitted light (or reflected light) returns to beginning intensity, this moment is referred to as OC/EC segmentations
Detect before point, the i.e. moment, OC of carbon amounts when being just defined as starting, and the carbon amounts for detecting thereafter is then corresponding to starting
EC。
The above is only preferred embodiment of the present utility model, anyone is according to content of the present utility model to the utility model
A little simple modification, deformation and the equivalent made each falls within protection domain of the present utility model.
Claims (9)
1. a kind of thermophotometry organic carbon elemental carbon in-line analyzer, including protection of instrumentation shell (100), protection of instrumentation shell
(100) laser module, carrier gas channel, air inlet and outlet piping and body of heater (10) are provided with, outside the protection of instrumentation shell (100)
Wall is provided with multiple external-connected ports, and external-connected port includes air intlet and air outlet slit, it is characterised in that：
The body of heater (10) includes reacting furnace (11) and oxidation furnace (12), and the reacting furnace (11) and oxidation furnace (12) are integral type
Structure, located at body of heater inside the shell, is provided with insulated wall (16) between reacting furnace (11) and oxidation furnace (12), insulated wall (16) is by stove
Body case inner chamber is divided into two chambers, and reacting furnace (11) is vertically arranged with insulated wall (16), oxidation furnace (12) and insulated wall (16)
It is arranged in parallel, the postmedian of reacting furnace (11) and the front end UNICOM of oxidation furnace (12), the rear end and front end of reacting furnace (11) are prolonged
Extend outside body of heater shell；
The laser module includes generating laser (41), photoelectric detector (42), sealing optical window (43) and quartz filter, described
Generating laser (41) is outside the rear end of reacting furnace (11), and photoelectric detector (42) is close outside the front end of reacting furnace (11)
Envelope optical window (43) seals optical window (43) by reacting furnace (11) and oxygen in the rear end of reacting furnace (11) and oxidation furnace (12) UNICOM
The rear end for changing stove (12) UNICOM intercepts into enclosed construction, and quartz filter is in reacting furnace (11) front end；
The air inlet and outlet piping includes air inlet pipe (21) and escaping pipe, air inlet pipe (21) one end connection air intlet, the other end
The entrance of coupled reaction stove (11), the air inlet pipe (21) is provided with sampling valve (22)；Escaping pipe one end connection air goes out
Mouthful, other end connection isolating valve (31), the isolating valve (31) connection valve road switched system (70), escaping pipe is provided with sample streams
Quantity sensor (32) and sample streams control valve (33)；
The carrier gas channel includes carrier gas air inlet pipe, carrier gas air inlet pipe one end coupled reaction stove (11), with reacting furnace (11)
For integral type structure, other end connection valve road switched system (70), the carrier gas air inlet on the reacting furnace (11) is located at quartz
Filter membrane rear；
Outlet connecting detection device (200) of the oxidation furnace (12).
2. a kind of thermophotometry organic carbon elemental carbon in-line analyzer according to claim 1, it is characterised in that：The body of heater
(10) side is provided with blower fan (60).
3. a kind of thermophotometry organic carbon elemental carbon in-line analyzer according to claim 1, it is characterised in that：The quartz
Filter membrane is by quartz ampoule (23) in reacting furnace (11).
4. a kind of thermophotometry organic carbon elemental carbon in-line analyzer according to claim 1, it is characterised in that：The carrier gas
Air inlet pipe is provided with temperature and surveys joint (14) with reacting furnace (11) junction, and temperature surveys joint (14) and is provided with temperature sensor.
5. a kind of thermophotometry organic carbon elemental carbon in-line analyzer according to claim 1, it is characterised in that：The body of heater
Outer casing inner wall is provided with heat-insulation layer.
6. a kind of thermophotometry organic carbon elemental carbon in-line analyzer according to claim 1, it is characterised in that：The oxidation
Stove (12) is 4 with reacting furnace (11) intracavity diameter ratio：3, the depth of oxidation furnace (12) place chamber and reacting furnace (11) place chamber
Degree is than being 1：1.
7. a kind of thermophotometry organic carbon elemental carbon in-line analyzer according to claim 1, it is characterised in that：The oxidation
Pipeline of the stove (12) and detector between is provided with detector control valve (15).
8. a kind of thermophotometry organic carbon elemental carbon in-line analyzer according to claim 1, it is characterised in that：The oxidation
The outlet of stove (12) connects sample breather pipe, sample breather pipe connecting detection device by joint (13).
9. a kind of thermophotometry organic carbon elemental carbon in-line analyzer according to claim 1, it is characterised in that：The valve road
Switched system (70) includes load gas control valve, demarcation gas control valve, oxygen control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258665.3U CN206161483U (en) | 2016-11-23 | 2016-11-23 | Organic carbon element carbon on line analyzer of heat light method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258665.3U CN206161483U (en) | 2016-11-23 | 2016-11-23 | Organic carbon element carbon on line analyzer of heat light method |
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| CN206161483U true CN206161483U (en) | 2017-05-10 |
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ID=58660783
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353232A (en) * | 2016-11-23 | 2017-01-25 | 河北先河环保科技股份有限公司 | On-line analyzer of organic and elemental carbon through thermophotometry |
-
2016
- 2016-11-23 CN CN201621258665.3U patent/CN206161483U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353232A (en) * | 2016-11-23 | 2017-01-25 | 河北先河环保科技股份有限公司 | On-line analyzer of organic and elemental carbon through thermophotometry |
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