CN203758975U - Analyzing device for simulating cigarette burning absorption based on controllable equivalent-ratio method - Google Patents
Analyzing device for simulating cigarette burning absorption based on controllable equivalent-ratio method Download PDFInfo
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- CN203758975U CN203758975U CN201420182514.9U CN201420182514U CN203758975U CN 203758975 U CN203758975 U CN 203758975U CN 201420182514 U CN201420182514 U CN 201420182514U CN 203758975 U CN203758975 U CN 203758975U
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- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 title abstract 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 18
- 238000004817 gas chromatography Methods 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims description 66
- 239000010453 quartz Substances 0.000 claims description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000004088 simulation Methods 0.000 claims description 14
- 239000012159 carrier gas Substances 0.000 claims description 13
- 239000003708 ampul Substances 0.000 claims description 9
- 238000010790 dilution Methods 0.000 claims description 8
- 239000012895 dilution Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 241000208125 Nicotiana Species 0.000 abstract description 59
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract description 59
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 38
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 20
- 238000005070 sampling Methods 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000004445 quantitative analysis Methods 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 238000004451 qualitative analysis Methods 0.000 abstract description 3
- 238000001819 mass spectrum Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 19
- 239000001301 oxygen Substances 0.000 description 19
- 238000004458 analytical method Methods 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 13
- 229910052739 hydrogen Inorganic materials 0.000 description 13
- 238000000197 pyrolysis Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 11
- 239000005864 Sulphur Substances 0.000 description 11
- 239000000446 fuel Substances 0.000 description 11
- 239000001257 hydrogen Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 238000000921 elemental analysis Methods 0.000 description 7
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 241000707825 Argyrosomus regius Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001303 quality assessment method Methods 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 235000019505 tobacco product Nutrition 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses an analyzing device for simulating cigarette burning absorption based on a controllable equivalent-ratio method. Practical air supply quantity and advance speed of a tobacco sample are calculated according to an equivalent ratio, then, under the calculated air supply quantity condition, a sample carrier on which tobacco samples are uniformly spread is pushed into a tube furnace at a certain temperature according to the calculated speed; a six-way valve is used for guiding burning products to a carbon dioxide analyzing system, when concentration fluctuation of the burning product is small, cracking products are guided to a PTV sample injector by the six-way valve, and condensed and enriched by liquid nitrogen; after sampling is carried out for a certain time, the six-way valve is connected with the carbon dioxide analyzing system; after temperature-programmed samples in the PTV sampler injector are subjected to temperature increasing and gas chromatography GC separating, mass spectrum MS is utilized for carrying out qualitative and quantitative analysis. Compared with the conventional method for simulating the cigarette burning absorption, the method disclosed by the utility model has the advantages that a cigarette burning environment can be accurately simulated, the sample carrying amount is large, experimental cigarettes do not need to be prepared, and the like, and can accurately measure chemical components in flue gas.
Description
Technical field:
The utility model relates to a kind of analytical equipment burning and sucking based on controlled equivalence ratio method simulation cigarette, belongs to tobacco detection technique field.
Background technology:
Cigarette quality depends on cigarette smoke, and cigarette smoke is mainly to burn and suck in process and produced by distillation, cracking by tobacco and adding ingredient thereof at cigarette.Therefore, by pyrolytic technique, cigarette sample is carried out to cracking, simulation cigarette burns and sucks process, and the pyrolysis product producing is carried out to assay, is smoke components source, spices transfer etc. to be carried out to a kind of widely used experimental technique of evaluation study.
At present, be usually used in simulating the pyrolysis installation that cigarette burns and sucks state and mainly contain thermogravimetric analyzer, tubular furnace etc.The intensification scope of thermogravimetric analyzer can meet the demand of tobacco research, and can change easily heating rate and oxygen content, but thermal weight loss instrument exists the deficiencies such as volume containing the sample is little, heating rate is low, while burning and sucking with cigarette, the violent actual conditions that heat up differ larger.Tubular furnace is fast owing to having heating rate, and atmosphere can be in harmonious proportion the advantages such as sample size is large, has become and has simulated at present the conventional pyrolysis means that cigarette burns and sucks.As the people such as Torikai of Japan Tobacco Inc (JTI) (Food and Chemical Toxicology, 2004; 42:1409 – 1417), people (the Journal of Analytical and Applied Pyrolysis such as Yoshida, 2013,104:508 – 513) and Chinese patent CN101692076A all once utilized tubular furnace research tobacco and the pyrolysis characteristics of tobacco ingredient when simulation cigarette burns and sucks.It should be noted that, no matter be thermogravimetric analyzer, or tubular furnace, all cannot make to test sample and reach stable state pyrolysis and combustion, be that these three component of combustion of temperature, tobacco and air are difficult in relatively constant state, therefore be difficult to pyrolysis and combustion product to carry out accurate quantitative analysis.
The concept of equivalence ratio has been proposed in fire toxicity assessment research field in recent years.Its core is that fuel produces speed (V
fuel) and air supply speed (V
air) control of ratio, be shown below,
When
during=1, >1, represent that respectively material is sufficient at air, the stable state combustion under stoichiometric ratio (theoretical value) and anoxia condition.Wherein,
physical meaning refer to the supply of air when each element in fuel fully burns.Therefore, by controlling equivalence ratio
just can control tobacco sample in stable combustion with meagre oxygen state.Meanwhile, the stable state combustion tubular furnace proposing in standard ISO 19700 can carry out Fast Heating to magnanimity tobacco sample (can reach ten grams more than level).In summary it can be seen, stable state combustion tubular furnace based on controlled equivalence ratio method can accurately be simulated the burning situation of cigarette while burning and sucking, to the pyrolysis product producing under specific stable state combustion environment gather and in addition quantitative test gather, the pyrolysis product burst size that just can burn and suck under environment at simulation cigarette tobacco is carried out Measurement accuracy.Yet present stage, this technology at home and abroad tobacco business there is not yet relevant report.Develop on-line analysis and device that the simulation cigarette based on controlled equivalence ratio method burns and sucks, to enrich and improve tobacco and tobacco product quality safety overall evaluation system, for raw tobacco material quality assessment and guarantee, Cigarette design exploitation and quality-improving provide important technology to support, for great special gordian techniquies such as " lowering harm and decreasing cokings ", break through and there is positive impetus.
Summary of the invention:
For overcoming the defect of prior art, the purpose of this utility model is to provide a kind of analytical equipment burning and sucking based on controlled equivalence ratio method simulation cigarette, the means of comprehensive utilization stable state tubular furnace and gas chromatography-mass spectrography technology (GC-MS), have realized the stable state combustion of tobacco under oxygen deprivation and can carry out on-line analysis to its products of combustion.
The utility model technical solution problem adopts following technical scheme:
The analytical equipment that the utility model burns and sucks based on controlled equivalence ratio method simulation cigarette, it comprises:
Stable state combustion device, products of combustion conversion equipment, carbon dioxide detect analytic system, stable state combustion product trapping analytical equipment;
Described stable state combustion device comprises rotary heating furnace and annular-heating furnace controller, one end that quartz ampoule is located in described rotary heating furnace is fire end, the other end is non-fire end, at described non-fire end, be provided with seal, quartz boat is located in described quartz ampoule and by outside stepper motor and is promoted in quartz ampoule, at the uniform velocity to move, on described seal, be provided with two through holes for supply air line path and stepper motor transmission path, described supply air line is communicated with outside feeder;
Described products of combustion conversion equipment is six-way valve, it detects analytic system, described stable state combustion product trapping analytical equipment and carrier gas source of the gas pipeline with the outlet side of the rotary heating furnace of stable state combustion device, described carbon dioxide respectively and is connected, for the flow direction of products of combustion, changes;
Described carbon dioxide detects analytic system and comprises the dilution blending bin being communicated with described six-way valve, the infrared instrument of non-scattering being communicated with described dilution blending bin, the vacuum pump and the carbon dioxide testing result registering instrument that are communicated with the infrared instrument of described non-scattering;
Described stable state combustion product trapping analytical equipment comprises the PTV injector being communicated with described six-way valve, the gas chromatograph, the gaseous mass analyzer that are communicated with described PTV injector.
Carrier gas in described carrier gas source of the gas pipeline is inert gas, as carrier gas or the cooling dilute combustion product of gas chromatography.
The analytical approach burning and sucking based on controlled equivalence ratio method simulation cigarette, it comprises the steps:
Step 1: calculate theoretical oxygen utilization;
Tobacco sample, through ultimate analysis, obtains C, H, and O, the percentage composition of S and N, the compound general formula of setting these five kinds of elements compositions is C
xh
yo
zs
pn
q, in air lucky clean-burning chemical formula suc as formula (1),
In formula (1)
this tobacco sample of 1g just fully during burning the volume of required air suc as formula (2),
formula (2)
In formula (2), b is the massfraction summation of C, H, O, S and five kinds of elements of N; M is C
xh
yo
zs
pn
qtrouble amount, i.e. M=l2
x+ y+l6
z+ 32
p+ 14
q; R is ideal gas constant; P is the pressure of test gas; T is the temperature of test gas; This tobacco sample of 1g fully burns consumed air capacity suc as formula (3),
formula (3)
Step 2: calculate actual air supply and sample supply;
Choose equivalence ratio
according to equivalence ratio formula (4),
formula (4)
Calculate the ratio of the actual fltting speed of tobacco sample and the feed speed of air, suc as formula (5),
formula (5)
The delivery rate of setting fuel is (V
fuel)
actual, the actual flow of air is:
formula (6)
In formula (6), fuel delivery rate advances speed V and tobacco sample quality W to calculate by load sampler length L, load sampler, specifically suc as formula (7),
formula (7)
Formula (7) is based on following processing: W g tobacco sample is wanted on the load sampler of uniform spreading L cm in measurement mechanism;
Step 3: according to formula (6) and formula (7), set instrument parameter, after it is stable, accurately weigh pretreated Wg tobacco sample uniform spreading on L cm load sampler, start experiment and measure in real time carbon dioxide volumetric concentration; Described pre-treatment step is carried out according to standard GB/T16447-2004;
Step 4: when the fluctuation of carbon dioxide volume fraction is in ± 5%, now can be considered and reach stable state, guide products of combustion into harvester, after second, products of combustion is guided capnograph again into through cooled with liquid nitrogen sampling 20-50;
Step 5: the stable state combustion product in described harvester is sent into gas chromatograph separation, then enter gaseous mass analyzer and carry out qualitative and quantitative analysis.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, simulate more exactly cigarette burning situation.The utility model is developed based on controlled equivalence ratio principle design, by regulation and control equivalence ratio
accurate crucial component of combustion such as oxygen concentration, the rate of heat addition and gas flow in control combustion process, thus realize the accurate simulation of kinds of cigarettes burning situation.
2, realized the accurate on-line measurement of pyrolysis and combustion product.The utility model makes ten grams of levels test above sample based on controlled equivalence ratio method to carry out long-time stable state combustion setting under burning situation, in conjunction with gas chromatography/mass spectrometry device, can accurately measure tobacco pyrolysis products of combustion burst size.
Accompanying drawing explanation:
Fig. 1 is the analytical equipment schematic diagram that the utility model simulation cigarette burns and sucks; Fig. 2 is process chart of the present utility model; Table 1 is the specifying information of the utility model tobacco sample used; The results of elemental analyses of the tobacco sample that table 2 the utility model is used.
Number in the figure: 1 stable state combustion device, 2 products of combustion conversion equipments, 3 carbon dioxide detect analytic system; 4 stable state combustion product trapping analytical equipments; 11 supply air lines, 12 stepper motors, 13 seals, 14 quartz ampoules, 15 quartz boats, 16 tobacco samples, 17 rotary heating furnaces, 18 annular-heating furnace controllers, 21 six-way valves, 22 carrier gas source of the gas pipelines, 31 dilution blending bins, the infrared instrument of 32 non-scattering, 33 vacuum pumps, 34 carbon dioxide testing result registering instruments, 311 blowdown valves.
Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment:
Embodiment: the analytical equipment that the utility model burns and sucks based on controlled equivalence ratio method simulation cigarette, it comprises:
Stable state combustion device 1, products of combustion conversion equipment 2, carbon dioxide detect analytic system 3, stable state combustion product trapping analytical equipment 4;
Described stable state combustion device 1 comprises rotary heating furnace 17 and annular-heating furnace controller 18, one end that quartz ampoule 14 is located in described rotary heating furnace is fire end, the other end is non-fire end, at described non-fire end, be provided with seal 13, quartz boat 15 is located in described quartz ampoule and by outside stepper motor 12 and is promoted in quartz ampoule, at the uniform velocity to move, on described seal, be provided with two through holes for supply air line path and stepper motor transmission path, described supply air line 11 is communicated with outside feeder;
Described products of combustion conversion equipment 2 is six-way valve 21, it detects analytic system, described stable state combustion product trapping analytical equipment and carrier gas source of the gas pipeline 22 with the outlet side of the rotary heating furnace of stable state combustion device, described carbon dioxide respectively and is connected, for the flow direction of products of combustion, changes;
Described carbon dioxide detects analytic system 3 and comprises the dilution blending bin 31 being communicated with described six-way valve, the infrared instrument 32 of non-scattering being communicated with described dilution blending bin, the vacuum pump 33 and the carbon dioxide testing result registering instrument 34 that are communicated with the infrared instrument of described non-scattering, and the top of dilution tank is provided with blowdown valve 311.
Described stable state combustion product trapping analytical equipment 4 comprises the PTV injector 41 being communicated with described six-way valve, the gas chromatograph 42, the gaseous mass analyzer 43 that are communicated with described PTV injector.
Carrier gas in described carrier gas source of the gas pipeline 22 is inert gas, as carrier gas or the cooling dilute combustion product of gas chromatography.
Method of the present utility model is the oxygen utilization when first being calculated carbon in tobacco, hydrogen, oxygen, nitrogen, these five kinds of elements of sulphur and fully burnt by theory, then chooses a certain specific equivalence ratio
calculate actual air mass flow and the feed speed of tobacco sample.Tobacco sample is layered on load sampler according to result of calculation above uniformly, according to the speed of calculating, load sampler is advanced in the tubular furnace that rises to a certain temperature, pyrolysis product enters into capnograph, when showing that gas concentration lwevel fluctuation is in ± 5%, can think and reach stable state combustion, now by six-way valve, products of combustion is switched to PTV injection port, and through liquid nitrogen condensation enrichment, the initial time of record sampling simultaneously, after sampling finishes (the end of record (EOR) time of being sure to), utilize six-way valve that products of combustion is introduced to carboloy dioxide analysis system again.Sample in PTV collector enters gas chromatography by temperature programme and carries out separation, then enters mass spectrum and carries out qualitative and quantitative analysis.Tobacco sample is carried out to stable state combustion experiment under different oxygen deprivation conditions, draw the related data that tobacco sample combustion product lean in oxygen changes with burning condition.
Can adopt said apparatus to simulate the analytical approach that cigarette burns and sucks as follows:
Embodiment 1: tobacco sample A is as shown in table 2 through results of elemental analyses, and the quality summation of carbon, hydrogen, oxygen, nitrogen, these five kinds of elements of sulphur is 92.314%, and as calculated, this tobacco sample of 1g fully burns, and (carbon is converted into CO
2, hydrogen is converted into H
2o, nitrogen is converted into NO
2, sulphur is converted into SO
2) after oxygen utilization be 0.03969mol, the volume that is converted to (temperature is 25 degree, and pressure is an atmospheric pressure) under perfect condition is 0.9713 liter, is also that the amount of the consumption gas of this tobacco sample of 1g while fully burning is 4.6252 liters.Getting equivalence ratio is 1.5, can obtain
Tobacco sample 16 is got on the quartz boat that 20g is laid in 80cm uniformly, and the fltting speed of quartz boat is 4cm/min, and the feed speed of fuel is 20g ÷ 80cm * 4cm/min=1g/min, and the flow of air is 1g/min ÷ 0.3243g/l=3.08 liter/min.
Six-way valve by tubular furnace and CO
2analyser is connected, tubular furnace temperature is risen to 850 degree simultaneously, stablize after 1 hour, open air door (air mass flow is set as 3.08 liters/min), ventilate 10 minutes, speed by the quartz boat that is evenly covered with 20g tobacco sample A with 4cm/min is advanced in tubular furnace, in the time of 600 seconds, carboloy dioxide analysis system shows that its content fluctuation is less, now, with six-way valve, products of combustion is caused to PTV injection port immediately, through cooled with liquid nitrogen, collected specimens is cooled to-90 degree, so, after sampling 20s, products of combustion is guided into carboloy dioxide analysis system.Then PTV injection port rises to 280 degree with 20 ℃/min, and sample enters GC/MS and analyzes.
Embodiment 2: tobacco sample B is as shown in table 2 through results of elemental analyses, and the total amount summation of carbon, hydrogen, oxygen, nitrogen, these five kinds of elements of sulphur is 95.211%, and as calculated, this tobacco sample of 1g fully burns, and (carbon is converted into CO
2, hydrogen is converted into H
2o, nitrogen is converted into NO
2, sulphur is converted into SO
2) after oxygen utilization be 0.04203mol, the volume that is converted to (temperature is 25 ℃, and pressure is an atmospheric pressure) under perfect condition is 1.0285 liters, is also that the amount of the consumption gas of this tobacco sample of 1g while fully burning is 4.8976 liters.Getting equivalence ratio is 1.1, can obtain
Get on the quartz boat that tobacco sample 10g is laid in 80cm uniformly, the fltting speed of quartz boat is 5cm/min, the feed speed of fuel is 10g ÷ 80cm * 5cm/min=0.625g/min, and the flow of air is 0.625g/min ÷ 0.2246g/l=2.78 liter/min.
Six-way valve by tubular furnace and CO
2analyser is connected, tubular furnace temperature is risen to 800 degree simultaneously, stablize after 1 hour, open air door (air mass flow is set as 2.78 liters/min), ventilate 10 minutes, speed by the quartz boat that is evenly covered with 10g tobacco sample A with 5cm/min is advanced in tubular furnace, in the time of 500 seconds, carboloy dioxide analysis system shows that its content fluctuation is less, now, with six-way valve, products of combustion is caused to PTV injection port immediately, through cooled with liquid nitrogen, collected specimens is cooled to-80 degree, so, after sampling 30s, products of combustion is guided into carboloy dioxide analysis system.Then PTV injection port rises to 280 degree with 40 ℃/min, and sample enters GC/MS and analyzes.
Embodiment 3: tobacco sample C is as shown in table 2 through results of elemental analyses, and the total amount summation of carbon, hydrogen, oxygen, nitrogen, these five kinds of elements of sulphur is 94.091%, and as calculated, this tobacco sample of 1g fully burns, and (carbon is converted into CO
2, hydrogen is converted into H
2o, nitrogen is converted into NO
2, sulphur is converted into SO
2) after oxygen utilization be 0.04333mol, the volume that is converted to (temperature is 25 ℃, and pressure is an atmospheric pressure) under perfect condition is 1.0604 liters, is also that the amount of the consumption gas of this tobacco sample of 1g while fully burning is 5.0495 liters.Getting equivalence ratio is 3, can obtain
Get on the quartz boat that tobacco sample 30g is laid in 80cm uniformly, the fltting speed of quartz boat is 3cm/min, the feed speed of fuel is 30g ÷ 80cm * 3cm/min=1.125g/min, and the flow of air is 1.125g/min ÷ 0.5941g/l=1.89 liter/min.
Six-way valve by tubular furnace and CO
2analyser is connected, tubular furnace temperature is risen to 650 degree simultaneously, stablize after 1 hour, open air door (air mass flow is set as 1.89 liters/min), ventilate 10 minutes, speed by the quartz boat that is evenly covered with 30g tobacco sample A with 3cm/min is advanced in tubular furnace, in the time of 650 seconds, carboloy dioxide analysis system shows that its content fluctuation is less, now, with six-way valve, products of combustion is caused to PTV injection port immediately, through cooled with liquid nitrogen, collected specimens is cooled to-80 degree, so, after sampling 25s, products of combustion is guided into carboloy dioxide analysis system.Then PTV injection port rises to 280 degree with 60 ℃/min, and sample enters GC/MS and analyzes.
Embodiment 4: tobacco sample D is as shown in table 2 through results of elemental analyses, and the total amount summation of carbon, hydrogen, oxygen, nitrogen, these five kinds of elements of sulphur is 94.519%, and as calculated, this tobacco sample of 1g fully burns, and (carbon is converted into CO
2, hydrogen is converted into H
2o, nitrogen is converted into NO
2, sulphur is converted into SO
2) after oxygen utilization be 0.04112mol, the volume that is converted to (temperature is 25 ℃, and pressure is an atmospheric pressure) under perfect condition is 1.0062 liters, is also that the amount of the consumption gas of this tobacco sample of 1g while fully burning is 4.7912 liters.Getting equivalence ratio is 4, can obtain
Get on the quartz boat that tobacco sample 25g is laid in 80cm uniformly, the fltting speed of quartz boat is 6cm/min, the feed speed of fuel is 25g ÷ 80cm * 6cm/min=1.875g/min, and the flow of air is 1.875g/min ÷ 0.8349g/l=2.25 liter/min.
Six-way valve by tubular furnace and CO
2analyser is connected, tubular furnace temperature is risen to 950 degree simultaneously, stablize after 1 hour, open air door (air mass flow is set as 2.25 liters/min), ventilate 10 minutes, speed by the quartz boat that is evenly covered with 25g tobacco sample A with 6cm/min is advanced in tubular furnace, in the time of 450 seconds, carboloy dioxide analysis system shows that its content fluctuation is less, now, with six-way valve, products of combustion is caused to PTV injection port immediately, through cooled with liquid nitrogen, collected specimens is cooled to-85 degree, so, after sampling 50s, products of combustion is guided into carboloy dioxide analysis system.Then PTV injection port rises to 280 degree with 60 ℃/min, and sample enters GC/MS and analyzes.
Embodiment 5: tobacco sample E is as shown in table 2 through results of elemental analyses, and the total amount summation of carbon, hydrogen, oxygen, nitrogen, these five kinds of elements of sulphur is 93.636%, and as calculated, this tobacco sample of 1g fully burns, and (carbon is converted into CO
2, hydrogen is converted into H
2o, nitrogen is converted into NO
2, sulphur is converted into SO
2) after oxygen utilization be 0.04105mol, the volume that is converted to (temperature is 25 ℃, and pressure is an atmospheric pressure) under perfect condition is 1.0046 liters, is also that the amount of the consumption gas of this tobacco sample of 1g while fully burning is 4.7837 liters.Getting equivalence ratio is 5, can obtain
Get on the quartz boat that tobacco sample 50g is laid in 80cm uniformly, the fltting speed of quartz boat is 8cm/min, and the feed speed of fuel is 50g ÷ 80cm * 8cm/min=5g/min, and the flow of air is 5g/min ÷ 1.0452g/l=4.78 liter/min.
Six-way valve by tubular furnace and CO
2analyser is connected, tubular furnace temperature is risen to 500 degree simultaneously, stablize after 1 hour, open air door (air mass flow is set as 4.78 liters/min), ventilate 10 minutes, speed by the quartz boat that is evenly covered with 50g tobacco sample A with 8cm/min is advanced in tubular furnace, in the time of 550 seconds, carboloy dioxide analysis system shows that its content fluctuation is less, now, with six-way valve, products of combustion is caused to PTV injection port immediately, through cooled with liquid nitrogen, collected specimens is cooled to-80 degree, so, after sampling 40s, products of combustion is guided into carboloy dioxide analysis system.Then PTV injection port rises to 280 degree with 80 ℃/min, and sample enters GC/MS and analyzes.
The specifying information of the tobacco sample that table 1 the utility model is used
The results of elemental analyses of the tobacco sample that table 2 the utility model is used
Claims (2)
1. the analytical equipment burning and sucking based on controlled equivalence ratio method simulation cigarette, is characterized in that comprising:
Stable state combustion device (1), products of combustion conversion equipment (2), carbon dioxide detect analytic system (3), stable state combustion product trapping analytical equipment (4);
Described stable state combustion device (1) comprises rotary heating furnace (17) and annular-heating furnace controller (18), one end that quartz ampoule (14) is located in described rotary heating furnace is fire end, the other end is non-fire end, at described non-fire end, be provided with seal (13), quartz boat (15) is located in described quartz ampoule and by outside stepper motor (12) and is promoted in quartz ampoule, at the uniform velocity to move, on described seal, be provided with two through holes for supply air line path and stepper motor transmission path, described supply air line (11) is communicated with outside feeder;
Described products of combustion conversion equipment (2) is six-way valve, it detects analytic system, described stable state combustion product trapping analytical equipment and carrier gas source of the gas pipeline (22) with the outlet side of the rotary heating furnace of stable state combustion device, described carbon dioxide respectively and is connected, for the flow direction of products of combustion, changes;
Described carbon dioxide detects analytic system (3) and comprises the dilution blending bin (31) being communicated with described six-way valve, the infrared instrument of non-scattering (32) being communicated with described dilution blending bin, the vacuum pump (33) and the carbon dioxide testing result registering instrument (34) that are communicated with the infrared instrument of described non-scattering;
Described stable state combustion product trapping analytical equipment (4) comprises the PTV injector (41) being communicated with described six-way valve, the gas chromatograph (42) being communicated with described PTV injector, gaseous mass analyzer (43).
2. the analytical equipment burning and sucking based on controlled equivalence ratio method simulation cigarette according to claim 1, is characterized in that, the carrier gas in described carrier gas source of the gas pipeline (22) is inert gas, as carrier gas or the cooling dilute combustion product of gas chromatography.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926342A (en) * | 2014-04-15 | 2014-07-16 | 安徽中烟工业有限责任公司 | Analytical method and analytical device for simulating cigarette burning and smoking based on controllable equivalence ratio method |
| CN104698105A (en) * | 2014-04-15 | 2015-06-10 | 安徽中烟工业有限责任公司 | Analyzing device for simulating burning and sucking of cigarette based on controlled equivalence ratio method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926342A (en) * | 2014-04-15 | 2014-07-16 | 安徽中烟工业有限责任公司 | Analytical method and analytical device for simulating cigarette burning and smoking based on controllable equivalence ratio method |
| CN104698105A (en) * | 2014-04-15 | 2015-06-10 | 安徽中烟工业有限责任公司 | Analyzing device for simulating burning and sucking of cigarette based on controlled equivalence ratio method |
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