CN213275045U - Full flue gas trapping device - Google Patents
Full flue gas trapping device Download PDFInfo
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- CN213275045U CN213275045U CN202022033983.2U CN202022033983U CN213275045U CN 213275045 U CN213275045 U CN 213275045U CN 202022033983 U CN202022033983 U CN 202022033983U CN 213275045 U CN213275045 U CN 213275045U
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- cigarette
- flue gas
- pressure headspace
- headspace bottle
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Abstract
The invention provides a full smoke trapping device, which comprises a negative pressure headspace bottle bracket, wherein a plurality of negative pressure headspace bottles are uniformly arranged in the negative pressure headspace bottle bracket, cigarette holders are arranged at the upper ends of the negative pressure headspace bottles, one ends of the cigarette holders hold cigarettes, the other ends of the cigarette holders are provided with airflow pipelines, and the airflow pipelines are sequentially inserted into the negative pressure headspace bottles to trap smoke; each negative pressure headspace bottle catches a cigarette smoke, the cigarette holder is arranged on the transverse moving lifting device, and the transverse moving lifting device is connected with the controller. The utility model discloses can carry out effective entrapment to full flue gas to can directly be used for the on-line analysis of gradually mouthful suction flue gas and full flue gas volatility semi-volatility composition, have advantages such as quick, accurate, easy operation.
Description
Technical Field
The utility model belongs to the analytical chemistry field, concretely relates to full flue gas entrapment device.
Background
The sensory perception of a cigarette by a smoker is mainly derived from the smoke of the cigarette. Smokers feel that there is a certain difference in the flavor and taste of each smoke, and the reasons for this difference are summarized as a dynamic balance of the interaction of the tobacco body, the filter tip, the cigarette paper and human factors with the mainstream smoke during smoking. Because the smoking of the cigarette is a constantly changing process, the actual change rule of the cigarette smoke can be accurately revealed only by carrying out mouth-to-mouth smoking analysis research on smoke components. The research of cigarette smoke mouth-to-mouth smoking becomes a main direction of tobacco chemical research, the content difference of each chemical component of cigarette mainstream smoke and the transmission rule thereof are deeply known, and the research is carried out by tobacco science and technology personnel all the time.
In order to realize the full-smoke capture of the main stream smoke of the cigarette, a device needs to be developed. Because the gas sample is not easy to collect and store, the volatile and semi-volatile substance content of the smoke sucked mouth by mouth is low, and the detection difficulty is high, the development of full smoke trapping is particularly important for component analysis.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a full flue gas entrapment device has advantages such as quick, accurate, easy operation.
The technical scheme adopted by the application is as follows:
a full smoke trapping device comprises a negative pressure headspace bottle bracket, wherein a plurality of negative pressure headspace bottles are uniformly arranged in the negative pressure headspace bottle bracket, cigarette holders are arranged at the upper ends of the negative pressure headspace bottles, one ends of the cigarette holders hold cigarettes, the other ends of the cigarette holders are provided with airflow pipelines, and the airflow pipelines are sequentially inserted into the negative pressure headspace bottles to trap smoke; each negative pressure headspace bottle catches a cigarette smoke, the cigarette holder is arranged on the transverse moving device, and the transverse moving lifting device is connected with the controller.
Further, the cigarette holder is provided with a holder regulating valve, and the diameter of the holder is regulated to be 5-9 mm.
Further, the pressure of the negative pressure headspace bottle is 40-200 kPa, and the volume is 20-60 mL.
Furthermore, the diameter of the airflow pipeline is 0.2-1 cm, the length of the airflow pipeline is 5-20 cm, and the end close to the negative pressure headspace bottle is a sharp nozzle, so that the airflow pipeline can be conveniently inserted into the negative pressure headspace bottle cap.
Furthermore, the plurality of negative pressure headspace bottles are connected through electromagnetic valves.
Furthermore, the transverse moving lifting device is an air cylinder arranged on the vertical rod support, the air cylinder moves up and down along the vertical rod support, screw holes are formed in two sides of the cigarette holder, a screw rod is arranged on a telescopic rod of the air cylinder, and the cigarette holder is arranged on the air cylinders on two sides.
Compared with the prior art, the beneficial effects of the utility model are as follows:
(1) the device can be used for sample analysis only by sucking one port by one port, the steps are simple, and meanwhile, the invention provides the one-stop sucking and trapping device which is easy to popularize.
(2) The device finishes trapping in a closed system with a fixed volume, realizes direct sample introduction, greatly reduces loss in the transfer process of volatile semi-volatile components in the flue gas, and increases the accuracy of the analysis process.
(3) The device is low in cost, and the cigarette holder, the airflow pipeline, the negative pressure headspace bottle bracket and the like which are related to the device are prepared from materials which are easy to obtain in a laboratory, an expensive smoking machine is not needed as a suction source, and the cost is low;
(4) the device has good sealing performance, volatile semi-volatile components are not easy to volatilize, and the invention does not relate to the pretreatment of a sample by a solvent and the like, thereby improving the analysis accuracy and reducing the pollution of a trapping process to the environment. (5) the device is suitable for cigarettes of different specifications such as fine cigarette, medium cigarette, common cigarette, coarse cigarette and the like, is suitable for heating novel cigarette products such as non-burning cigarettes and electronic cigarettes, is suitable for trapping of cigarette smoke sucked one by one under different smoking modes such as ISO and Canada deep smoking, and can meet the trapping requirements of cigarette smoke sucked one by one and full smoke analysis.
(6) The device controls the cigarette holder to move up and down and left and right through the transverse moving lifting device, and the movement of the cigarette holder is accurately controlled.
Drawings
Fig. 1 is a schematic structural view of the present invention viewed from above.
FIG. 2 is a schematic view of the structure of the air flow line inserted into the negative pressure headspace bottle;
in the figure: 1-cigarette, 2-cigarette holder, 3-airflow pipeline, 4-negative pressure headspace bottle, 5-control valve or electromagnetic valve, 6-negative pressure headspace bottle bracket, 7-cylinder, 8-upright rod bracket.
Detailed Description
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available by purchase.
The invention will be further explained with reference to the drawings.
Example 1
As shown in fig. 1, the total smoke trapping device of the present embodiment includes a cigarette 1, a cigarette holder 2, an air flow pipeline 3, a negative pressure headspace bottle 4, a control valve or an electromagnetic valve 5, a negative pressure headspace bottle support 6, a cylinder 7, and a vertical rod support 8. The negative pressure headspace bottle support 6 fixes negative pressure headspace bottles, the negative pressure headspace bottles 4 control the mouth-by-mouth suction volume, each negative pressure headspace bottle 4 catches one mouth of cigarette smoke respectively, and the communication state of the negative pressure headspace bottles 4 is controlled by a control valve or an electromagnetic valve 5. The cigarette holder 2 is arranged on the transverse moving lifting device, and the transverse moving lifting device is connected with the controller. The lateral shifting elevating gear is for locating cylinder 7 on pole setting support 8, and cylinder 7 moves from top to bottom along pole setting support 8, and 2 both sides of cigarette holder are equipped with the screw, are equipped with the screw rod on the cylinder telescopic link, and on the cylinder of both sides was located to the cigarette holder, removed the in-process, kept a cigarette level.
The cigarette holder 2 is provided with an adjusting valve, and the diameter of the adjustable holder is 5-9 mm. The pressure of the negative pressure headspace bottle 4 is 40-200 kPa, and the volume is 20-60 mL; the communication state of the plurality of negative pressure headspace bottles 4 is controlled by a control valve or an electromagnetic valve 5.
The airflow pipeline 3 is made of silica gel, the diameter is 0.2-1 cm, the length is 5-20 cm, and the end close to the negative pressure headspace bottle 4 is a sharp mouth, so that the air flow pipeline can be conveniently inserted into a negative pressure headspace bottle cap.
The negative pressure headspace bottle 4 can be an existing negative pressure headspace bottle, and the size of the negative pressure headspace bottle only meets the headspace sampling standard, for example, the diameter of the headspace bottle is 0.8-6 cm, the height of the headspace bottle is 2-5 cm, and the material of the headspace bottle is pressure-resistant glass.
The application process of this embodiment is as follows:
adjusting the size of the cigarette holder 2 to be 5mm according to the diameters of cigarettes 1 of different samples, closing all the control valves or electromagnetic valves 5, inserting the tip end of the airflow pipeline 3 into a headspace bottle through one 35mL negative pressure headspace bottle 4 bottle cap while lighting the cigarettes 1, continuously trapping for 1s, and pulling out the airflow pipeline 3; after smoldering for 59 seconds, inserting the sharp-mouth end of the airflow pipeline 3 into a headspace bottle through another 35mL negative pressure headspace bottle 4 bottle cap, continuously trapping for 1-3 seconds, and pulling out the airflow pipeline 3; in the process, the transverse moving lifting device is controlled to move up, down, left and right.
And repeating the steps, sequentially trapping the mouth-by-mouth smoke of the completely smoked cigarettes, and taking down the headspace bottle to perform HS-SPME-GC/MS on-line analysis on volatile semi-volatile components in the mouth-by-mouth smoked cigarettes.
The analysis conditions of the instrument are as follows:
SPME-headspace conditions: the extraction temperature is as follows: extraction time at 40 ℃: 15min, desorption time: 3min, rotating speed of an extraction head: 200 rpm. Gas chromatography conditions: the chromatographic column is DB-5MS capillary chromatographic column (30 m × 0.32mm × 0.25 μm); sample inlet temperature: 220 ℃; temperature programming: the initial temperature was 40 deg.C, held for 1min, ramped up to 230 deg.C at 5 deg.C/min, held for 5 min. Carrier gas: high-purity helium gas, a constant flow mode, and a column flow rate of 1 mL/min; and (3) sample introduction mode: split-flow sample injection is carried out, and the split-flow ratio is 2: 1. Mass spectrum conditions: an ion source: an EI source; ionization energy: 70 eV; ion source temperature: 220 ℃; transmission line temperature: 220 ℃; detection mode: full scan (Full scan) monitoring mode, quality scan range: 30amu to 500 amu; solvent retardation: 0.2 min.
Another use procedure of this embodiment is as follows:
adjusting the size of the cigarette holder 2 to be 7mm according to the diameters of different cigarettes 1, closing all the control valves or electromagnetic valves 5, inserting the tip end of the airflow pipeline 3 into a headspace bottle through one 55mL negative pressure headspace bottle 4 bottle cap while lighting the cigarettes 1, continuously trapping for 2s, and then pulling out the airflow pipeline 3; after smoldering for 28 seconds, inserting the sharp-mouth end of the airflow pipeline 3 into the headspace bottle through the other 55mL negative pressure headspace bottle 4 bottle cap, continuously trapping for 2 seconds, and pulling out the airflow pipeline 3; and repeating the steps, trapping the mouth-by-mouth smoke of the completely smoked cigarettes in sequence, opening a control valve or an electromagnetic valve 5 connected and trapped between the mouth-by-mouth smoking smoke negative pressure headspace bottles, uniformly mixing the smoke in the headspace bottles, and taking down the headspace bottles to perform the HS-GC/MS on-line analysis on the total smoke volatile and semi-volatile components of the cigarettes. In the process, the transverse moving lifting device is controlled to move up, down, left and right.
The analysis conditions of the instrument are as follows:
the static headspace conditions were: sample equilibrium temperature: 40 ℃; sample loop: 3.0 mL; sample ring temperature: 40 ℃; transmission line temperature: 100 ℃; sample equilibration time: 10.0 min; sample bottle pressurization pressure: 35 psi; pressurizing time: 2 min; and (3) inflation time: 0.5 min; sample introduction time: 0.20 min. The gas chromatography conditions were: a chromatographic column: an elastic capillary polyethylene glycol column or equivalent column having a specification of [30m (length) × 0.25mm (inner diameter) × 0.25 μm (film thickness) ]; carrier gas: helium (He) with purity more than or equal to 99.999%; sample inlet temperature: 150 ℃; in a constant flow mode, the column flow is 1.0mL/min, and the split ratio is 5: 1; temperature programming: the initial temperature is 40 ℃, the temperature is kept for 1min, the temperature is increased to 220 ℃ at the speed of 5 ℃/min, and the temperature is kept for 5 min; the column flow rate was 1 mL/min. The mass spectrum conditions are as follows: auxiliary interface temperature: at 210 ℃; an ionization mode: an electron impact source (EI); ionization energy: 70 eV; ion source temperature: at 210 ℃; temperature of the quadrupole rods: 180 ℃; solvent delay time: 0.2 min; mass scan range: 30amu to 500 amu.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a full flue gas entrapment device which characterized in that: the cigarette smoke collection device comprises a negative pressure headspace bottle support (6), wherein a plurality of negative pressure headspace bottles (4) are uniformly arranged in the negative pressure headspace bottle support (6), cigarette holders (2) are arranged at the upper ends of the negative pressure headspace bottles (4), one ends of the cigarette holders (2) hold cigarettes, the other ends of the cigarette holders are provided with airflow pipelines (3), and the airflow pipelines (3) are sequentially inserted into the negative pressure headspace bottles (4) to collect smoke; each negative pressure headspace bottle (4) catches a cigarette smoke, the cigarette holder (2) is arranged on the transverse moving lifting device, and the transverse moving lifting device is connected with the controller.
2. The total flue gas capture device of claim 1, wherein: the cigarette holder (2) is provided with a holder regulating valve, and the diameter of the holder is regulated to be 5-9 mm.
3. The total flue gas capture device of claim 1, wherein: the pressure of the negative pressure headspace bottle (4) is 40-200 kPa, and the volume is 20-60 mL.
4. The total flue gas capture device of claim 1, wherein: the diameter of the air flow pipeline (3) is 0.2-1 cm, the length of the air flow pipeline is 5-20 cm, and the end close to the negative pressure headspace bottle (4) is a sharp nozzle, so that the air flow pipeline can be conveniently inserted into a negative pressure headspace bottle cap.
5. The total flue gas capture device of claim 1, wherein: the negative pressure headspace bottles (4) are connected through electromagnetic valves (5).
6. The total flue gas capture device of claim 1, wherein: the transverse moving lifting device is an air cylinder (7) arranged on a vertical rod support (8), the air cylinder (7) moves up and down along the vertical rod support (8), screw holes are formed in two sides of the cigarette holder (2), a screw rod is arranged on a telescopic rod of the air cylinder (7), and the cigarette holder (2) is arranged on the air cylinders (7) on two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022033983.2U CN213275045U (en) | 2020-09-16 | 2020-09-16 | Full flue gas trapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022033983.2U CN213275045U (en) | 2020-09-16 | 2020-09-16 | Full flue gas trapping device |
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| Publication Number | Publication Date |
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| CN213275045U true CN213275045U (en) | 2021-05-25 |
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| CN202022033983.2U Active CN213275045U (en) | 2020-09-16 | 2020-09-16 | Full flue gas trapping device |
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| CN (1) | CN213275045U (en) |
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2020
- 2020-09-16 CN CN202022033983.2U patent/CN213275045U/en active Active
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