CN206489066U - A kind of laboratory thermophotometry organic carbon element carbon analyzer - Google Patents
A kind of laboratory thermophotometry organic carbon element carbon analyzer Download PDFInfo
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- CN206489066U CN206489066U CN201720100009.9U CN201720100009U CN206489066U CN 206489066 U CN206489066 U CN 206489066U CN 201720100009 U CN201720100009 U CN 201720100009U CN 206489066 U CN206489066 U CN 206489066U
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- reacting furnace
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Abstract
The utility model discloses a kind of laboratory thermophotometry organic carbon element carbon analyzer; including protection shell, quartzy stove and analytic unit; quartzy stove fire door is circumscribed with carrier gas tank; quartzy stove includes the reacting furnace and oxidation furnace of integral structure; reacting furnace is " ten " character form structure, and reacting furnace upper and lower ends are respectively equipped with generating laser and transmitted light detector, and reacting furnace between the two is interior provided with quartz filter; reacting furnace right-hand member UNICOM fire door, left end UNICOM oxidation furnace entrance；Analytic unit includes methane reborner and fid detector, methane reborner entrance connection oxidation outlet of still, methane reborner outlet connection fid detector.The utility model is simple in construction, organic carbon and elemental carbon are accurately split by hot optical transmission method and thermal light emission method, individually detection, quartzy stove is integral type structure, loss of the sample in heating volatilization process is avoided, various factors is controllable, and Data Detection is accurate, Monitoring Data is obtained to more convenient and quicker, the pollution situation of aerosol is well understood.
Description
Technical field
The utility model is related to laboratory testing equipment field, more particularly to a kind of organic carbon of use for laboratory thermophotometry
Carbon analyzer.
Background technology
Atmospheric aerosol is suspended in the carbonaceous group in the solid-state in air and the general name of liquid particles thing, 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.
Current 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 earth heating, 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, add the Radiative Forcing of particulate matter, reduce atmospheric visibility.Gas is molten
OC in glue also can play scattering process to light, greatly affected the visibility of regional atmospheric.PM2.5 main constituents it
Once organic carbon OC and elemental carbon EC.
Because the atmospheric aerosol carbonaceous components overwhelming majority is present in fine particle, it is thus possible to be easy to by human body
Respiration enters the lung of human body, and destruction changes the 26S Proteasome Structure and Function of lung, causes chronic respiratory disease, or even can change
DNA structure.
At present, to atmospheric aerosol carbonaceous components (OC/EC) research, it has also become the focus of current environmental monitoring.
Mainly use two methods：Film sampling+off-line analysis and online OC/EC monitorings.But the cost of online OC/EC analyzers compared with
It is high, it is difficult to carry out popularization and application at home, therefore, in order to preferably, more convenient and quicker obtain Monitoring Data, clearly
Understand the pollution situation of China's aerosol, support is provided for control atmosphere pollution, improvement air quality, in the urgent need to one kind is adapted to
A kind of analyzer suitable for laboratory of film sampling+off-line analysis of China's aerosol monitoring and research.
Utility model content
Technical problem to be solved in the utility model be to provide it is a kind of simple in construction, can be convenient and swift, accurately
Monitoring Data is obtained, a kind of laboratory thermophotometry organic carbon element carbon analyzer of the pollution situation of aerosol is well understood.
In order to solve the above technical problems, technical solution adopted in the utility model is：
A kind of laboratory thermophotometry organic carbon element carbon analyzer, including protection shell and the quartz in protection shell
Stove and analytic unit, it is characterised in that：The fire door of the quartzy stove is extended to outside protection shell and fire door is provided with furnace crown, institute
State fire door and carrier gas tank is circumscribed with by gas-carrier pipeline, the gas-carrier pipeline between the carrier gas tank and fire door is provided with carrier gas control group
Part；The quartzy stove includes the reacting furnace and oxidation furnace of integral structure；The reacting furnace is " ten " character form structure, reacting furnace
Upper and lower ends are the optical window structure of closing, and the outside of reacting furnace upper and lower ends is coaxially provided with generating laser and transmitted light inspection respectively
Survey and quartz filter is provided with the reacting furnace between device, and generating laser and transmitted light detector, reacting furnace right-hand member UNICOM fire door,
Reacting furnace left end UNICOM oxidation furnace entrance；The analytic unit includes methane reborner and the FID detections for being external in protection shell
Device, the methane reborner entrance is connected by sample gas circuit connection oxidation outlet of still, the methane reborner outlet by gas circuit
Connect fid detector.
Further technical scheme is：Inclined reflecting piece at 45 ° is provided with below the generating laser, in reflecting piece
Reflective surface side provided with reflected light detector with its level.
Further technical scheme is：The protection shell inner cavity isolates to form former and later two chambers by dividing plate, institute
State carrier gas control assembly and quartzy stove is respectively arranged on the diagonal angle of two chambers.
Further technical scheme is：The gas-carrier pipeline passes through the air inlet mouth of pipe on protection shell to enter protection
In shell, the carrier gas control assembly includes pressure limiting valve, flowmeter, flow control valve and the threeway being sequentially arranged in gas-carrier pipeline
Magnetic valve, the gas-carrier pipeline of described three-way magnetic valve one end passes through the foreboard joint being located on the protection shell with fire door homonymy,
And be connected with fire door.
Further technical scheme is：The dividing plate at the quartzy stove rear is provided with cooling fan mounting hole, and cool wind
The fan of quartzy stove is provided with fan mounting hole.
Further technical scheme is：The quartzy stove left and right sides is provided with thermal insulation layer.
Further technical scheme is：The sample gas circuit passes through the outlet mouth of pipe and dividing plate on protection shell
On perforation be connected with oxidation outlet of still, the outlet mouth of pipe and the air inlet mouth of pipe are located at the same side for protecting shell, and the side is close
Carrier gas control assembly is away from quartzy stove.
Further technical scheme is：The protection side wall of outer shell is provided with radiating orifice plate.
Further technical scheme is：The exit of the reacting furnace is provided with warm probing head.
It is using the beneficial effect produced by above-mentioned technical proposal：
The utility model is simple in construction, small volume, and the content of organic carbon and elemental carbon can be detected by gathering a small amount of sample,
Organic carbon and elemental carbon are accurately split by hot optical transmission method and thermal light emission method, individually detection, quartzy stove is integral type knot
Structure, it is to avoid loss of the sample in heating volatilization process, various factors is controllable, and Data Detection is accurate, can more preferably, it is more convenient soon
Monitoring Data is obtained promptly, without region limitation, each department sampling of aerosol can be detected, the pollution of aerosol is well understood
Present situation, support is provided for control atmosphere pollution, improvement air quality.Air pollution origin analysis can also be carried out simultaneously, is judged
The root of pollutant, administers air for government department and provides foundation.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is axle geodesic structure schematic diagram of the present utility model；
Fig. 2 is the axle geodesic structure schematic diagram of rear side in Fig. 1；
Fig. 3 is the axle geodesic structure schematic diagram of analytic unit of the present utility model；
Fig. 4 is the structural representation of the utility model laser detection part.
Embodiment
With reference to the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clear
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 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 other manner described here using other implement, 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 shown in figures 1-4, a kind of laboratory thermophotometry organic carbon element carbon analyzer, including protect shell 40 and be located at
The quartzy stove and analytic unit in shell 40 are protected, the fire door 101 of the quartzy stove is extended to outside protection shell 40 and fire door
101 are provided with furnace crown 102, and the fire door 101 is circumscribed with carrier gas tank by gas-carrier pipeline, between the carrier gas tank and fire door 101
Gas-carrier pipeline be provided with carrier gas control assembly；The quartzy stove includes the reacting furnace 10 and oxidation furnace 20 of integral structure；Institute
Reacting furnace 10 is stated for " ten " character form structure, the upper and lower ends of reacting furnace 10 are the optical window structure of closing, and reacting furnace is two about 10
The outside at end is coaxially provided with generating laser 11 and transmitted light detector 12, and generating laser 11 and transmitted light detector respectively
Quartz filter 16, the right-hand member UNICOM fire door 101 of reacting furnace 10, the left end UNICOM oxygen of reacting furnace 10 are provided with reacting furnace 10 between 12
Change the entrance of stove 20；The analytic unit includes the methane reborner 50 and fid detector 60 for being external in protection shell 40, the first
The entrance of alkane reburner 50 connects oxidation furnace 20 by sample gas circuit and exported, and the outlet of methane reborner 50 is connected by gas circuit
Fid detector 60.
The lower section of generating laser 11 is provided with inclined reflecting piece 15 at 45 °, be provided with the reflective surface side of reflecting piece 15 with
The reflected light detector 14 of its level.
The specific trend of gas-carrier pipeline is set to, and gas-carrier pipeline passes through the air inlet mouth of pipe 2 on protection shell 40 to enter
Protect in shell 40, the carrier gas control assembly includes the pressure limiting valve 31, flowmeter 32, flow control being sequentially arranged in gas-carrier pipeline
Valve 33 and three-way magnetic valve 34 processed, the gas-carrier pipeline of described one end of three-way magnetic valve 34 are passed through located at the guarantor with the homonymy of fire door 101
The foreboard joint 44 protected on shell 40, and be connected with fire door 101.Pressure limiting valve 31 is mainly used in realizing the limitation to nebulizer gas pressure,
After pressure limiting valve, the maximum pressure of carrier gas can be restricted, and so can more stably control nebulizer gas pressure.Flowmeter 32 is real
Now to the real-time monitoring of carrier gas flux, and according to setting flow, flow control valve is adjusted in real time, actual flow is protected with preset flow
Hold consistent.Because the carrier gas tank of system includes 5 kinds of carrier gas, respectively helium, helium/methane mixed gas, zero air, hydrogen and
Helium/oxygen gas mixture, in various running statuses, is switched over to required gas, realizes institute as needed by three-way magnetic valve 34
Need gas control.
Moreover, sample gas circuit passes through the outlet mouth of pipe 1 and the perforation on dividing plate and oxidation furnace on protection shell 40
20 outlet connections, the outlet mouth of pipe 1 is with the air inlet mouth of pipe 2 located at the same side of protection shell 40, and the side is close to carrier gas control group
Part is away from quartzy stove.
The exit of reacting furnace 10 is provided with warm probing first 13, and warm probing first 13 monitors sample film temperature in real time, so as to control
The accurate temperature of each gradient of heating schedule.
Wherein, the protection inner chamber of shell 40 isolates to form former and later two chambers by dividing plate, the carrier gas control assembly and stone
English stove is respectively arranged on the diagonal angle of two chambers, carrier gas control assembly and quartzy stove is farthest set in limited space.By
In quartzy stove provided with heater strip to detection sample heating, so needing to separate carrier gas control assembly with quartzy stove, and make two
Person keeps farthest distance, and carrier gas control assembly is influenceed temperature too high by quartzy stove.Also, the quartzy stove left and right sides is provided with heat-insulated
Layer 42, further by the shield heat away of quartzy stove part.The dividing plate at quartzy stove rear is provided with cooling fan mounting hole 43, cooling
The fan of quartzy stove is provided with fan mounting holes 43, fan cools to quartzy stove surrounding environment, prevents from damaging other
Component.Protect the side wall of shell 40 provided with radiating orifice plate 41, the problem of 40 inside of shell is protected in reduction improves detection temperature.
It is the thick metal materials of 1.7~2mm to protect shell 40, the size of protection shell 40 for 40.6cm × 40.6cm ×
52.1cm, makes it meet the effect to internal component hardness protection.And the outside of thermal insulation layer 42 is stainless steel thick 12mm,
Inner side is the refractory brick material of identical size, plays a part of the quartzy stove heat of isolation.
First pass through sampler and sample is covered into collection to quartz filter 16, the utility model when in use, is cut using card punch
Filter membrane is cut to suitable dimension, the furnace crown 102 of quartzy stove is removed, the quartz boat in reacting furnace 10 is taken out, by the quartz of well cutting
Filter membrane 16 is placed on quartz boat, in the fire door 101 that sample is sent into quartzy stove by quartz boat, and is pushed into the friendship of reacting furnace 10
No longer pushed ahead at mouthful by the temperature thermo-coupler in reacting furnace 10 is spacing.Detect that the first stage carries out OC analyses, to quartzy stove
Helium, helium/methane mixed gas, the four kinds of carrier gas of zero air and hydrogen are inside passed through, while quartzy stove is started to warm up, in reacting furnace 10
Pintsch process reaction is carried out, sample becomes after small-molecule substance, and the organic carbon in sample particle thing is oxidized in oxidation furnace 20
The manganese dioxide that stove 20 is carried, changes into detectable gas CO2, the CO of generation2Gas enters methane reborner with helium carrier gas
50, in the case where methane reborner 50 is interior through hydrogen and hot conditions by CO2Methane is reduced to, is then determined by fid detector 60
Amount detection.
Second stage is detected, helium/oxygen gas mixture is passed through into the fire door 101 of quartzy stove by gas-carrier pipeline, by sample film
In elemental carbon (EC) be oxidized to detectable CO2, above-mentioned the same manner is used, methane is converted into through methane reborner 50, then by
FID is quantitatively detected.
During sample analysis, generating laser 11 is launched all the time has beam of laser to be irradiated to sample film i.e. quartz filter
On 16, a part of projection light of laser being transmitted on quartz filter 16 is transmitted photodetector 12 through quartz filter 16 and received
Arrive, the monitoring of transmitted light detector 12 rises to again through the change of the transmitted light of quartz filter 16 when laser is declined by initial value
During initial value, the moment is the cut-point of organic carbon and elemental carbon.
When carrying out OCEC segmentations using transmitting light, when on the laser projection that generating laser 11 is launched to quartz filter 16,
Understand some light to be reflected by quartz filter 16, and reflected light detector 14, reflected light detection are refracted to through reflecting piece 15
The detection intensity of reflected light change of device 14.When laser by initial value decline rise to initial value again when, the moment be organic carbon and
The cut-point of elemental carbon.
This two kinds of detection methods are referred to as hot optical transmission method and thermal light emission method above.
Wherein, pressure limiting valve 31, flowmeter 32, flow control valve 33, three-way magnetic valve 34, part 11, transmitted light detector
12nd, warm probing first 13 and fid detector 60 are all connected with containing the control mainboard below gas control assembly located at protection shell 40
30, control mainboard 30 controls the operation of all parts, instrument is completed various test assignments and connects PC ends by signal wire.
The utility model is simple in construction, small volume, and the content of organic carbon and elemental carbon can be detected by gathering a small amount of sample,
Organic carbon and elemental carbon are accurately split by hot optical transmission method and thermal light emission method, individually detection, quartzy stove is integral type knot
Structure, it is to avoid loss of the sample in heating volatilization process, various factors is controllable, and Data Detection is accurate, can more preferably, it is more convenient soon
Monitoring Data is obtained promptly, the pollution situation of aerosol is well understood, and branch is provided for control atmosphere pollution, improvement air quality
Hold.
It 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 substitution made each falls within protection domain of the present utility model.
Claims (9)
1. a kind of laboratory thermophotometry organic carbon element carbon analyzer, including protect shell (40) and interior located at protection shell (40)
Quartzy stove and analytic unit, it is characterised in that：The fire door (101) of the quartzy stove, which is extended to, protects shell (40) outside and stove
Mouth (101) is provided with furnace crown (102), and the fire door (101) is circumscribed with carrier gas tank, the carrier gas tank and fire door by gas-carrier pipeline
(101) gas-carrier pipeline between is provided with carrier gas control assembly；The reacting furnace (10) of the quartzy stove including integral structure and
Oxidation furnace (20)；The reacting furnace (10) is " ten " character form structure, and the upper and lower ends of reacting furnace (10) are the optical window structure of closing,
The outside of reacting furnace (10) upper and lower ends is coaxially provided with generating laser (11) and transmitted light detector (12) respectively, and laser is sent out
Quartz filter (16), reacting furnace (10) right-hand member connection are provided with reacting furnace (10) between emitter (11) and transmitted light detector (12)
Logical fire door (101), reacting furnace (10) left end UNICOM oxidation furnace (20) entrance；The analytic unit includes being external in protection shell
(40) methane reborner (50) and fid detector (60), methane reborner (50) entrance connect oxygen by sample gas circuit
Change stove (20) outlet, methane reborner (50) outlet connects fid detector (60) by gas circuit.
2. a kind of laboratory thermophotometry organic carbon element carbon analyzer according to claim 1, it is characterised in that：It is described to swash
Inclined reflecting piece (15) at 45 ° is provided with below optical transmitting set (11), is provided with and its water in the reflective surface side of reflecting piece (15)
Flat reflected light detector (14).
3. a kind of laboratory thermophotometry organic carbon element carbon analyzer according to claim 1, it is characterised in that：It is described to protect
Shield shell (40) inner chamber isolates to form former and later two chambers by dividing plate, and the carrier gas control assembly and quartzy stove are respectively arranged on two
The diagonal angle of individual chamber.
4. a kind of laboratory thermophotometry organic carbon element carbon analyzer according to claim 1, it is characterised in that：It is described to carry
Air pipe passes through the air inlet mouth of pipe (2) on protection shell (40) to enter in protection shell (40), the carrier gas control assembly
Including the pressure limiting valve (31) being sequentially arranged in gas-carrier pipeline, flowmeter (32), flow control valve (33) and three-way magnetic valve (34),
The gas-carrier pipeline of described three-way magnetic valve (34) one end, which is passed through, to be located at and the foreboard on the protection shell (40) of fire door (101) homonymy
Joint (44), and be connected with fire door (101).
5. a kind of laboratory thermophotometry organic carbon element carbon analyzer according to claim 1, it is characterised in that：The stone
The dividing plate at English stove rear is provided with the wind that quartzy stove is provided with cooling fan mounting hole (43), cooling fan mounting hole (43)
Fan.
6. a kind of laboratory thermophotometry organic carbon element carbon analyzer according to claim 1, it is characterised in that：The stone
The English stove left and right sides is provided with thermal insulation layer (42).
7. a kind of laboratory thermophotometry organic carbon element carbon analyzer according to claim 1, it is characterised in that：The sample
Product gas circuit passes through the outlet mouth of pipe (1) on protection shell (40) and the perforation on dividing plate to connect with oxidation furnace (20) outlet
Connect, the outlet mouth of pipe (1) is with the air inlet mouth of pipe (2) located at the same side of protection shell (40), and the side is close to carrier gas control assembly
Away from quartz stove.
8. a kind of laboratory thermophotometry organic carbon element carbon analyzer according to claim 1, it is characterised in that：It is described to protect
Shell (40) side wall is protected provided with radiating orifice plate (41).
9. a kind of laboratory thermophotometry organic carbon element carbon analyzer according to claim 1, it is characterised in that：It is described anti-
The exit of stove (10) is answered to be provided with warm probing head (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720100009.9U CN206489066U (en) | 2017-01-23 | 2017-01-23 | A kind of laboratory thermophotometry organic carbon element carbon analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720100009.9U CN206489066U (en) | 2017-01-23 | 2017-01-23 | A kind of laboratory thermophotometry organic carbon element carbon analyzer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644952A (en) * | 2017-01-23 | 2017-05-10 | 河北先河环保科技股份有限公司 | Laboratory thermophotometry organic carbon and elemental carbon analyzer |
| CN111766327A (en) * | 2020-07-09 | 2020-10-13 | 安东仪器仪表检测有限公司 | Calibration method of on-line gas chromatograph |
-
2017
- 2017-01-23 CN CN201720100009.9U patent/CN206489066U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644952A (en) * | 2017-01-23 | 2017-05-10 | 河北先河环保科技股份有限公司 | Laboratory thermophotometry organic carbon and elemental carbon analyzer |
| CN111766327A (en) * | 2020-07-09 | 2020-10-13 | 安东仪器仪表检测有限公司 | Calibration method of on-line gas chromatograph |
| CN111766327B (en) * | 2020-07-09 | 2023-10-27 | 安东仪器仪表检测有限公司 | Calibration method of online gas chromatograph |
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